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WO2019150440A1 - Drive control system, motor, and method for controlling drive control system - Google Patents

Drive control system, motor, and method for controlling drive control system Download PDF

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Publication number
WO2019150440A1
WO2019150440A1 PCT/JP2018/003010 JP2018003010W WO2019150440A1 WO 2019150440 A1 WO2019150440 A1 WO 2019150440A1 JP 2018003010 W JP2018003010 W JP 2018003010W WO 2019150440 A1 WO2019150440 A1 WO 2019150440A1
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WO
WIPO (PCT)
Prior art keywords
motor
polarity
rotation direction
control system
drive control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/003010
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French (fr)
Japanese (ja)
Inventor
和明 岡村
真次 河住
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shindengen Electric Manufacturing Co Ltd
Original Assignee
Shindengen Electric Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shindengen Electric Manufacturing Co Ltd filed Critical Shindengen Electric Manufacturing Co Ltd
Priority to JP2018526607A priority Critical patent/JP6577145B1/en
Priority to PCT/JP2018/003010 priority patent/WO2019150440A1/en
Publication of WO2019150440A1 publication Critical patent/WO2019150440A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position

Definitions

  • the present invention relates to a drive control system, a motor, and a control method for the drive control system.
  • a reference magnetic pole 104aP is provided on the rotor 102aP with respect to a rotation angle of 360 ° of the motor 102P.
  • the width of the N pole corresponding to the reference position of the crank X of the internal combustion engine corresponds to the rotation angle of the motor 90 °, and the widths of the other N poles and S poles correspond to the rotation angle of the motor 30 ° (FIG. 5). ). Then, the phase of the motor 102P (that is, the reference position of the crank X of the internal combustion engine) is grasped from the pulse signal of the Hall element 104bP of the sensor 104P provided on the stator 102bP, and the crank X is positioned (FIG. 6). .
  • the position of the motor 102P (crank of the internal combustion engine) is determined by rotating 360 °, and the phase of the motor, that is, the crank position (stage of the internal combustion engine) is determined (FIG. 6).
  • an object of the present invention is to provide a drive control system that can shorten the time for specifying the phase of the motor and increase the speed of motor control.
  • a drive control system includes: A motor, A magnet for detection provided on the outer periphery of the rotor of the motor along the rotation direction, wherein a plurality of magnetic poles having a first polarity and a second polarity are alternately arranged in the rotation direction of the motor. And when the magnetic flux of the first polarity magnet of the detection magnet is detected, a first level pulse signal is output and the second polarity magnetic pole of the detection magnet is provided.
  • a Hall element that outputs a second level pulse signal upon detecting magnetic flux;
  • a driver circuit for controlling the operation of the motor;
  • a controller that detects the phase of the motor based on the pulse signal output by the Hall element of the sensor and controls the driver circuit to drive the motor;
  • the widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor,
  • the widths of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor are set to be the same.
  • the widths of the plurality of magnetic poles of the first polarity of the sensor in the rotation direction of the motor are set differently to increase or decrease in order of one rotation in the rotation direction of the motor.
  • the difference between the widths of the two magnetic poles of the first polarity that are continuous in the rotation direction of the motor is set to be constant within a range of one rotation in the rotation direction of the motor. It is characterized by.
  • the rotor angle corresponding to the difference between the widths of the two consecutive magnetic poles of the first polarity is 3 °, 6 °, or 12 °.
  • a width of the plurality of second polarity magnetic poles in the rotation direction of the motor is larger than the difference between the widths of the two consecutive magnetic poles of the first polarity.
  • a width of the plurality of magnetic poles of the second polarity in the rotation direction of the motor is three times the difference between the widths of the two consecutive magnetic poles of the first polarity.
  • the controller is Measuring the second time when the pulse signal is at the second level, and calculating the angular velocity of the rotor of the motor based on the measured second time and the width of the magnetic pole of the second polarity; After measuring the second time, the first time when the pulse signal is at the first level is measured, and the second time is measured based on the measured first time and the calculated angular velocity. Estimating the width of the magnetic pole of the first polarity adjacent to the magnetic pole of the second polarity, and identifying the phase of the motor associated with the estimated width of the magnetic pole of the first polarity; It is characterized by detection.
  • the controller is After measuring the second time when the pulse signal becomes the second level, measure the first time, and again measure the second time when the pulse signal becomes the second level, and measure 2
  • the angular velocity of the rotor of the motor is calculated based on the average value of the two second times and the width of the magnetic pole of the second polarity.
  • a storage unit M that stores the width of the magnetic pole having the first polarity and the phase of the motor in association with each other is further provided.
  • the controller reads out the phase of the motor associated with the estimated width of the magnetic pole of the first polarity from the storage unit when detecting the phase of the motor.
  • the motor is configured such that the rotor is connected to a crankshaft of an internal combustion engine and torque is applied to the internal combustion engine.
  • the control unit detects a crank phase of the internal combustion engine based on the pulse signal output from the Hall element of the sensor.
  • the control unit specifies a direction in which the motor is rotating based on the pulse signal output from the Hall element of the sensor.
  • a plurality of the hall elements are provided along the rotation direction on the outer periphery of the rotor of the motor.
  • the drive control system is mounted on a two-wheeled vehicle, the motor is connected to an internal combustion engine of the two-wheeled vehicle, and the control unit drives the internal combustion engine by driving the motor by the driver circuit. To do.
  • the position of the magnetic pole of the first polarity with the minimum width in the rotor of the motor corresponds to the crank angle at the top dead center of the internal combustion engine.
  • the Hall element is provided at a position facing the outer periphery of the rotor.
  • a control method of a drive control system includes: The motor and the outer periphery of the rotor of the motor are provided along the rotation direction, and a plurality of first polarity magnetic poles and second polarity magnetic poles are alternately arranged in the rotation direction of the motor.
  • a magnetic flux of a first polarity magnet of the detection magnet is detected, a first level pulse signal is output and a second polarity of the detection magnet is provided on the detection magnet and the stator of the motor.
  • a control method for a drive control system comprising: a sensor including a Hall element that outputs a pulse signal of a second level when the magnetic flux of the magnetic pole of the motor is detected; a driver circuit that controls the operation of the motor; Because The controller detects the phase of the motor based on the pulse signal output from the Hall element of the sensor, and controls the driver circuit to drive the motor,
  • the widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor,
  • the widths of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor are set to be the same.
  • a motor includes: A motor, A rotor, A stator, and Sensor detection magnets are provided on the outer periphery of the rotor of the motor along the rotation direction, and a plurality of first polarity magnetic poles and second polarity magnetic poles are alternately arranged in the rotation direction of the motor.
  • a hall element of the sensor is provided in the stator of the motor; The Hall element outputs a first level pulse signal when detecting the magnetic flux of the first polarity magnet of the detection magnet, and detects the magnetic flux of the second polarity magnetic pole of the detection magnet.
  • the width of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor is set differently in the rotation direction of the motor,
  • the widths of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor are set to be the same.
  • the drive control system is provided along the rotation direction on the outer periphery of the motor and the rotor of the motor, and the magnetic pole having the first polarity (for example, N pole) and the second in the rotation direction of the motor.
  • Detection magnets configured by alternately arranging a plurality of magnetic poles of the same polarity (for example, S poles) and a first stator of the detection magnets provided at a position opposite to the outer periphery of the rotor on the stator of the motor.
  • the first level for example, “High” level
  • the second level for example, A sensor including a Hall element that outputs a pulse signal of “Low” level
  • a driver circuit that controls the operation of the motor
  • a phase of the motor based on the pulse signal output by the Hall element of the sensor
  • the widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor (including the forward rotation direction and the reverse rotation direction).
  • the widths of the plurality of second polarity magnetic poles of the sensor are set to be the same.
  • the widths of the plurality of first polarity magnetic poles of the sensor are set differently (non-uniformly), and the widths of the plurality of second polarity magnetic poles are the same. Therefore, based on the pulse signal output from the Hall element of the sensor, the phase of the motor is specified before the motor rotates 360 °.
  • the drive control system of the present invention it is possible to shorten the time for specifying the phase of the motor and to increase the speed of the motor control.
  • FIG. 1 is a diagram illustrating an example of a configuration of a drive control system 1000 according to the first embodiment.
  • FIG. 2 is a diagram illustrating an example of a schematic configuration of the motor 102 and the sensor 104 illustrated in FIG.
  • FIG. 3 is a diagram showing an example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102).
  • FIG. 4 is a diagram showing another example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102).
  • FIG. 5 is a diagram illustrating an example of a schematic configuration of a motor and a sensor of a conventional drive control system.
  • FIG. 6 is a diagram showing an example of the relationship between the pulse signal output from the sensor shown in FIG. 5 and the crank angle (rotational angle of the motor) of the internal combustion engine.
  • FIG. 1 is a diagram illustrating an example of a configuration of a drive control system 1000 according to the first embodiment.
  • FIG. 2 is a diagram illustrating an example of a schematic configuration of the motor 102 and the sensor 104 illustrated in FIG. 1.
  • FIG. 3 is a diagram showing an example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102).
  • a drive control system 1000 for controlling the drive of the internal combustion engine according to the first embodiment includes, for example, a drive control device (ECU: Engine Control Unit) 100, a battery B, and a motor 102 as shown in FIGS. And an engine (internal combustion engine) 103 and a sensor 104.
  • ECU Engine Control Unit
  • FIGS. A drive control system 1000 for controlling the drive of the internal combustion engine according to the first embodiment
  • a drive control device ECU: Engine Control Unit
  • a battery B for controlling the drive of the internal combustion engine
  • an engine internal combustion engine
  • the drive control system 1000 is mounted on, for example, a two-wheeled vehicle (not shown).
  • the motor 102 is connected to the internal combustion engine 103 of the motorcycle.
  • the internal combustion engine 103 is, for example, a 4-stroke engine. Therefore, the state of the internal combustion engine 103 changes between an intake stroke, a compression stroke, a combustion stroke, and an exhaust stroke.
  • the battery B supplies driving power to the motor 102 or charges regenerative power by the motor 102.
  • the rotor 102a is connected to the crankshaft X of the internal combustion engine, and torque is applied to the internal combustion engine 103 (that is, the crank of the internal combustion engine 103).
  • the motor 102 is connected to the crankshaft X of the internal combustion engine 103 so as to be able to transmit and receive torque. That is, the motor 102 has both functions of an electric motor and a generator. As described above, the motor 102 is driven by the internal combustion engine 103 to generate electric power, and also functions as an AC generator (ACG) that outputs an AC voltage.
  • ACG AC generator
  • the motor 102 includes a stator 102 b, a U-phase coil, a V-phase coil, and a W-phase coil (not shown) provided on the stator 102 b, and an internal combustion engine 103. And a rotor 102a to which the crankshaft X is connected.
  • the sensor 104 detects, for example, the rotational speed (rpm) and crank angle (for example, change in rotational angle, top dead center) of the internal combustion engine 103, and outputs a signal corresponding to the detection result. Yes.
  • the sensor 104 includes, for example, a detection magnet 104a and a hall element 104b as shown in FIG.
  • the detection magnet 104 a is provided along the rotation direction R on the outer periphery of the rotor 102 a of the motor 102.
  • the detection magnet 104a has a magnetic pole G1 having a first polarity (eg, N pole in the example of FIG. 2) and a second polarity (eg, S pole in the example of FIG. 2) in the rotation direction R of the motor 102.
  • a plurality of magnetic poles G2 are alternately arranged.
  • the hall element 104b is provided at a position facing the stator 102b of the motor 102 and the outer periphery of the rotor 102a (for example, the inner periphery of the stator 102b).
  • the Hall element 104b outputs a pulse signal of the first level (for example, “High” level) when detecting the magnetic flux of the first polarity G1 magnet of the detection magnet 104a. .
  • the Hall element 104b when detecting the magnetic flux of the magnetic pole G of the second polarity G2 of the detection magnet 104a, the Hall element 104b outputs a pulse signal of the second level (for example, “Low” level).
  • the number of hall elements 104b is one in the example of FIG. 2, but a plurality of hall elements 104b may be provided along the rotation direction R on the outer periphery of the rotor 102a of the motor 102. Thereby, the accuracy of magnetic flux detection of the detection magnet 104a can be improved.
  • the width (length) of the magnetic pole G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotational direction R of the motor 102 is the rotational direction R ( It is set differently in the direction including the forward rotation direction and the reverse rotation direction).
  • the widths of the plurality of first polarity magnetic poles G ⁇ b> 1 of the sensor 104 in the rotation direction R of the motor 102 are set differently so as to increase in the order of one rotation in the rotation direction R of the motor 102. Has been.
  • the minimum width (length) of the magnetic pole G1 having the first polarity corresponds to the rotation angle of the motor 102 of 12 °.
  • the width of the magnetic pole G1 having the first polarity is set so as to increase in the unit of the width corresponding to the rotation angle 12 ° of the motor 102 in the order of one rotation in the rotation direction R of the motor 102.
  • the position of the first polarity magnetic pole G1 having the minimum width described above in the rotor 102a of the motor 102 corresponds to, for example, the top dead center crank angle (motor phase) of the internal combustion engine.
  • the sizes of the plurality of first magnetic poles (N poles) G1 and second magnetic poles (S poles) G2 of the sensor 104 in the direction orthogonal to the rotation direction R of the motor 102 are, for example, the same. ing.
  • the width difference between the two magnetic poles G1 of the first polarity that are continuous in the rotation direction R of the motor 102 is set so as to be constant within a range of one rotation in the rotation direction R of the motor 102. Yes.
  • the above-described difference between the widths of the two consecutive magnetic poles G1 having the first polarity (for example, the width corresponding to the rotation angle 48 ° of the motor 102 ⁇ the width corresponding to the rotation angle 36 °). ) Is, for example, 12 ° (corresponding to a rotation angle 12 ° of the motor 102).
  • the angle of the rotor 102a corresponding to the above-described difference between the widths of the two consecutive magnetic poles G1 having the first polarity is 3 ° or 6 ° (corresponding to the rotation angle 3 ° or 6 ° of the motor 102). There may be.
  • the widths of the plurality of second polarity magnetic poles G2 in the rotation direction R of the motor 102 are continuous. It is set to be larger than the above-described difference between the widths of the two first polarity magnetic poles G1 (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2).
  • the widths of the plurality of second polarity magnetic poles G in the rotation direction R of the motor 102 are, for example, This is three times the above-described difference (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2) of the widths of the two consecutive magnetic poles G1 having the first polarity.
  • the first magnetic pole G1 is an N pole and the second magnetic pole G2 is an S pole.
  • the first magnetic pole G1 is an S pole and the second magnetic pole G2 is an N pole. Good.
  • the widths of the plurality of first polarity magnetic poles (N poles) G1 of the sensor 104 in the rotation direction R of the motor 102 are set differently so as to decrease in the order of one rotation in the rotation direction R of the motor 102. It may be.
  • the drive control apparatus 100 outputs a signal output from the sensor 104 (that is, the rotation speed and phase of the motor 102 obtained from the signal (crank angle, for example, change in rotation angle, Based on the top dead center)), the drive of the motor 102 and the internal combustion engine 103 is controlled.
  • a signal output from the sensor 104 that is, the rotation speed and phase of the motor 102 obtained from the signal (crank angle, for example, change in rotation angle, Based on the top dead center)
  • crank angle for example, change in rotation angle, Based on the top dead center
  • the drive control apparatus 100 includes, for example, a control unit (CPU: Central Processing Unit) CON, a storage unit M, and a driver circuit D as shown in FIG.
  • a control unit CPU: Central Processing Unit
  • a storage unit M storage unit
  • a driver circuit D driver circuit D as shown in FIG.
  • the driver circuit D is configured to control the operation of the motor 102 that applies torque to the internal combustion engine 103.
  • the storage unit M is configured to store a map for controlling the start of the internal combustion engine 103 (for controlling the motor 102).
  • the storage unit M is configured to store the width of each of the plurality of first polarity magnetic poles G1 and the phase of the motor 102 in association with each other.
  • the width of the magnetic pole G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotation direction R of the motor 102 is equal to the rotation direction R (forward rotation direction and reverse rotation direction) of the motor 102.
  • the different widths of the plurality of first polarity magnetic poles G1 and the phases of the different motors 102 can be set so as to correspond one-to-one and stored in the storage unit M.
  • control unit CON after the power is turned on, before the start of the internal combustion engine 103 (ignition control), based on the pulse signal output from the Hall element 104b of the sensor 104 (the crank of the internal combustion engine) Phase (crank angle)) is detected. Further, the control unit CON identifies the direction in which the motor 102 is rotating based on the pulse signal output from the Hall element 104b of the sensor 104.
  • control unit CON refers to the storage unit M and determines the driver circuit D based on the rotation speed and crank angle (for example, change in rotation angle, top dead center) of the internal combustion engine 103 detected using the sensor 104.
  • the internal combustion engine 103 is started and the internal combustion engine 103 is driven.
  • control unit CON rotates the motor 102 after the power is turned on and before starting (ignition control) of the internal combustion engine 103, and based on the pulse signal output from the Hall element 104b of the sensor 104, The phase of the motor 102 (the crank phase (crank angle) of the internal combustion engine) is detected, and the internal combustion engine 103 is driven while the motor 102 is driven based on the detection result.
  • control unit CON measures the second time (tl) when the pulse signal output from the Hall element 104b of the sensor 104 becomes the second level (“Low” level) (FIG. 5). 3).
  • the control unit CON calculates the angular velocity of the rotor 102a of the motor 102 based on the measured second time (tl) and the width of the magnetic pole G2 having the second polarity.
  • the width of the magnetic pole G2 having the second polarity is a fixed (constant) known value as described above, and thus the value of the known width is divided by the measured second time (tl).
  • the angular velocity of the rotor 102a of the motor 102 can be calculated.
  • the control unit CON measures the first time (th) when the pulse signal becomes the first level (“High” level) (FIG. 3).
  • the controller CON determines the width of the magnetic pole G1 having the first polarity adjacent to the magnetic pole G2 having the second polarity measured for the second time. Is supposed to be estimated.
  • the width of the magnetic pole G1 having the first polarity is calculated (estimated) by multiplying the measured first time (th) by the calculated angular velocity.
  • the control unit CON reads the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity from the storage unit M when the phase of the motor 102 is detected.
  • the control unit CON detects the phase of the motor 102 by specifying the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity.
  • the widths of the magnetic poles G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotation direction R of the motor 102 are set differently in the rotation direction R of the motor 102. Further, the widths (lengths) of the plurality of second polarity magnetic poles (S poles) G2 of the sensor 104 in the rotation direction R of the motor 102 are set to be the same.
  • the phase of the motor 102 is specified before the motor 102 rotates 360 °.
  • the widths of the plurality of second polarity magnetic poles G2 in the rotation direction R of the motor 102 (corresponding to the rotation angle 36 ° of the motor 102 in the example of FIG. 2) It is set to be larger than the above-described difference in the width of the magnetic pole G1 having one polarity (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2).
  • control unit CON can detect the change in the level of the pulse signal more reliably and can estimate the phase of the motor 102.
  • the widths of the plurality of first polarity magnetic poles G of the sensor 104 are all set differently (non-uniformly), and the plurality of first Since the widths of the magnetic poles G having the two polarities are all set to be the same, based on the pulse signal output from the Hall element of the sensor 104, before the motor 102 rotates 360 °, The phase will be specified.
  • the drive control system 1000 according to the first embodiment, it is possible to shorten the time for specifying the phase of the motor 102 and increase the speed of the motor control.
  • control unit CON calculates based on the pulse signal output from the sensor 104 and detects (estimates) the phase of the motor 102.
  • control unit CON controls the driver circuit D to rotate the motor 102 after the drive control system 1000 is turned on and before the internal combustion engine 103 is started (ignition control).
  • control unit CON sets the pulse signal output from the Hall element 104b of the sensor 104 to the second level (“Low” level) (after the pulse (3)). Measure 2 hours (tl).
  • the controller CON calculates the angular velocity of the rotor 102a of the motor 102 based on the measured second time (tl) and the width of the magnetic pole G2 having the second polarity.
  • the width of the magnetic pole G2 having the second polarity is a fixed (constant) known value as described above, and thus the value of the known width is divided by the measured second time (tl).
  • the angular velocity of the rotor 102a of the motor 102 can be calculated.
  • the controller CON measures the first time (th) of the pulse signal at the first level (“High” level) (of the pulse (4)). .
  • the controller CON determines the width of the magnetic pole G1 having the first polarity adjacent to the magnetic pole G2 having the second polarity measured for the second time. Is estimated.
  • the width of the magnetic pole G1 having the first polarity is calculated (estimated) by multiplying the measured first time (th) corresponding to the width of the pulse (4) by the calculated angular velocity.
  • the control unit CON reads the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity from the storage unit M when detecting the phase of the motor 102.
  • the control unit CON detects the phase of the motor 102 by specifying the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity.
  • the widths of the magnetic poles G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotation direction R of the motor 102 are set differently in the rotation direction R of the motor 102. Further, the widths (lengths) of the plurality of second polarity magnetic poles (S poles) G2 of the sensor 104 in the rotation direction R of the motor 102 are set to be the same.
  • the phase of the motor 102 is specified before the motor 102 rotates 360 °.
  • the widths of the plurality of second polarity magnetic poles G2 in the rotation direction R of the motor 102 (corresponding to the rotation angle 36 ° of the motor 102 in the example of FIG. 2) It is set to be larger than the above-described difference in the width of the magnetic pole G1 having one polarity (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2).
  • control unit CON can detect the change in the level of the pulse signal more reliably and can estimate the phase of the motor 102.
  • the maximum positioning rotation angle is the width of the pulse (3), the subsequent “Low” level period, and the width of the pulse (4), and before the motor 102 is rotated 360 °, the motor
  • the phase of 102 can be specified.
  • the rotation angle of the motor corresponds to the crank angle of the internal combustion engine 103, and the stage (each process) of the internal combustion engine can be specified by specifying the phase of the motor.
  • control unit CON refers to the storage unit M, and based on the rotational speed and crank angle (for example, change in rotational angle, top dead center) of the internal combustion engine 103 detected using the sensor 104, the driver circuit D By controlling the above and driving the motor 102, the internal combustion engine 103 can be started and the internal combustion engine 103 can be driven.
  • the widths of the plurality of first polarity magnetic poles G of the sensor 104 are set differently (non-uniformly), Since the width of the magnetic pole G of the second polarity is set to be the same, before the motor 102 rotates 360 ° based on the pulse signal output by the Hall element of the sensor 104, The phase will be specified.
  • FIG. 4 is a diagram showing another example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102).
  • control unit CON detects and estimates (estimates) the phase of the motor 102 based on the pulse signal output from the sensor 104.
  • control unit CON controls the driver circuit D to rotate the motor 102 after the drive control system 1000 is turned on and before the internal combustion engine 103 is started (ignition control).
  • control unit CON sets the second level ("Low” level) of the pulse signal output from the Hall element 104b of the sensor 104 (after the pulse (2)). Measure for 2 hours (tl 1 ).
  • the control unit CON measures the first time (th) of the pulse signal at the first level (“High” level) (of the pulse (3)). To do.
  • control unit CON measures the second time (tl 1 ) when the pulse signal output from the Hall element 104b of the sensor 104 becomes the second level (“Low” level), and then the first time (th). Then, the second time (tl 2 ) when the pulse signal becomes the second level (“Low” level) is measured again.
  • control unit CON determines the angular velocity of the rotor 102a of the motor 102 based on the average value of the two measured second times (tl 1 ) and (tl 2 ) and the width of the magnetic pole G having the second polarity. It comes to calculate.
  • the width of the magnetic pole G2 having the second polarity is a fixed (fixed) known value as described above, the two second times (tl 1 ) when the value of the known width is measured. ), And dividing by the average value of (tl 2 ), the angular velocity of the rotor 102a of the motor 102 can be calculated.
  • the controller CON determines the width of the magnetic pole G1 having the first polarity adjacent to the magnetic pole G2 having the second polarity measured for the second time. Is estimated.
  • the width of the magnetic pole G1 having the first polarity is calculated (estimated) by multiplying the measured first time (th) corresponding to the width of the pulse (4) by the calculated angular velocity.
  • the control unit CON reads the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity from the storage unit M when detecting the phase of the motor 102.
  • the control unit CON detects the phase of the motor 102 by specifying the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity.
  • the maximum positioning rotation angle is the width of the pulse (3), the subsequent “Low” level period, the width of the pulse (4), and the subsequent “Low” level period.
  • the phase of the motor 102 can be determined.
  • the rotation angle of the motor corresponds to the crank angle of the internal combustion engine 103, and the stage (each process) of the internal combustion engine can be specified by specifying the phase of the motor.
  • the drive control system is provided along the rotation direction on the outer periphery of the motor 102 and the rotor of the motor, and has the first polarity (for example, N pole) in the rotation direction of the motor.
  • first polarity for example, N pole
  • second polarity for example, S poles
  • stator of the motor provided at a position facing the outer periphery of the rotor
  • a sensor 104 including a Hall element that outputs a pulse signal of level 2 (eg, “Low” level), a driver circuit D that controls the operation of the motor, and a pulse signal output by the Hall element of the sensor. ,motor It detects the phase, and a control unit CON for driving the motor by controlling the driver circuit.
  • level 2 eg, “Low” level
  • the widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor (including the forward rotation direction and the reverse rotation direction).
  • the widths of the plurality of second polarity magnetic poles of the sensor are set to be the same.
  • the widths of the plurality of first polarity magnetic poles of the sensor are set differently (non-uniformly), and the widths of the plurality of second polarity magnetic poles are the same. Therefore, based on the pulse signal output from the Hall element of the sensor, the phase of the motor is specified before the motor rotates 360 °.
  • the drive control system of the present invention it is possible to shorten the time for specifying the phase of the motor and to increase the speed of the motor control.

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Abstract

A drive control system, provided with: a motor; a sensor that includes detection magnets provided along the rotation direction on the outer periphery of a rotor of the motor, the detection magnets being configured by alternately disposing a plurality of magnetic poles having a first polarity and a plurality of magnetic poles having a second polarity along the rotation direction of the motor, and also includes a Hall element provided to a stator of the motor at a position facing the outer periphery of the rotor, the Hall element outputting a pulse signal of a first level upon detecting magnetic flux of a magnet having a first polarity and outputting a pulse signal of a second level upon detecting a pulse signal of a second level upon detecting magnetic flux of a magnetic pole having a second polarity; a driver circuit for controlling the operation of the motor; and a control unit for detecting the phase of the motor on the basis of the pulse signal outputted by the Hall element of the sensor, and controlling the driver circuit and driving the motor.

Description

駆動制御システム、モータ、および、駆動制御システムの制御方法Drive control system, motor, and control method of drive control system

　本発明は、駆動制御システム、モータ、および、駆動制御システムの制御方法に関する発明である。 The present invention relates to a drive control system, a motor, and a control method for the drive control system.

　従来、直流電源が出力する直流電圧を電力変換した交流電圧をモータに供給して、当該モータを駆動するインバータ回路を備えた駆動制御システムがある（例えば、特開２０１０－２３９７４８号参照）。 2. Description of the Related Art Conventionally, there is a drive control system provided with an inverter circuit that supplies an AC voltage obtained by converting a DC voltage output from a DC power source to a motor and drives the motor (see, for example, JP 2010-239748 A).

　このような従来の駆動制御システムにおいて、例えば、図５に示すように、モータ１０２Ｐの回転角３６０°に対して基準磁極１０４ａＰを回転子１０２ａＰに設けているものがある。 In such a conventional drive control system, for example, as shown in FIG. 5, a reference magnetic pole 104aP is provided on the rotor 102aP with respect to a rotation angle of 360 ° of the motor 102P.

　そして、内燃機関のクランクＸの基準位置に対応するＮ極の幅がモータの回転角９０°に対応し、その他のＮ極及びＳ極の幅がモータの回転角３０°に対応する（図５）。そして、固定子１０２ｂＰに設けられたセンサ１０４Ｐのホール素子１０４ｂＰのパルス信号により、モータ１０２Ｐの位相（すなわち、内燃機関のクランクＸの基準位置）を把握し、クランクＸの位置決めを行う（図６）。 The width of the N pole corresponding to the reference position of the crank X of the internal combustion engine corresponds to the rotation angle of the motor 90 °, and the widths of the other N poles and S poles correspond to the rotation angle of the motor 30 ° (FIG. 5). ). Then, the phase of the motor 102P (that is, the reference position of the crank X of the internal combustion engine) is grasped from the pulse signal of the Hall element 104bP of the sensor 104P provided on the stator 102bP, and the crank X is positioned (FIG. 6). .

　この従来の方式では、モータ１０２Ｐ（内燃機関のクランク）が３６０°回転することで位置を特定して、モータの位相、すなわちクランク位置（内燃機関のステージ）を決定する（図６）。 In this conventional system, the position of the motor 102P (crank of the internal combustion engine) is determined by rotating 360 °, and the phase of the motor, that is, the crank position (stage of the internal combustion engine) is determined (FIG. 6).

　このように、この従来の方式では、モータ１０２Ｐが３６０°回転しないとモータ１０２Ｐの位相を特定ができない（クランクＸの基準位置を特定できない）ために、モータ１０２Ｐの位相を特定する時間が長くなり、モータ制御の高速化を図ることができない問題がある。 Thus, in this conventional method, since the phase of the motor 102P cannot be specified unless the motor 102P rotates 360 ° (the reference position of the crank X cannot be specified), it takes a long time to specify the phase of the motor 102P. There is a problem that the motor control speed cannot be increased.

特開２０１０－２３９７４８号JP 2010-239748 A

　そこで、本発明では、モータの位相を特定する時間を短縮して、モータ制御の高速化を図ることが可能な駆動制御システムを提供することを目的とする。　 Therefore, an object of the present invention is to provide a drive control system that can shorten the time for specifying the phase of the motor and increase the speed of motor control. *

　本発明の一態様に係る実施形態に従った駆動制御システムは、　 
　モータと、
　前記モータの回転子の外周に回転方向に沿って設けられ、前記モータの回転方向に第１の極性の磁極と第２の極性の磁極とが交互に複数個配置されて構成された検出用磁石と、前記モータの固定子に設けられ、前記検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベルのパルス信号を出力するとともに前記検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベルのパルス信号を出力するホール素子と、を含むセンサと、
　前記モータの動作を制御するドライバ回路と、
　前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記モータの位相を検出するとともに、前記ドライバ回路を制御して前記モータを駆動する制御部と、を備え、　　
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に異なって設定されており、　
　前記モータの前記回転方向における前記センサの複数の前記第２の極性の磁極の幅は、同じになるように設定されている
　ことを特徴とする。 A drive control system according to an embodiment of one aspect of the present invention includes:
A motor,
A magnet for detection provided on the outer periphery of the rotor of the motor along the rotation direction, wherein a plurality of magnetic poles having a first polarity and a second polarity are alternately arranged in the rotation direction of the motor. And when the magnetic flux of the first polarity magnet of the detection magnet is detected, a first level pulse signal is output and the second polarity magnetic pole of the detection magnet is provided. A Hall element that outputs a second level pulse signal upon detecting magnetic flux;
A driver circuit for controlling the operation of the motor;
A controller that detects the phase of the motor based on the pulse signal output by the Hall element of the sensor and controls the driver circuit to drive the motor;
The widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor,
The widths of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor are set to be the same.

　前記駆動制御システムにおいて、
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に１回転する順番に、大きくなるように異なって設定され若しくは小さくなるように異なって設定されており、
　前記モータの前記回転方向において連続する２つの前記第１の極性の磁極の幅の差が、前記モータの前記回転方向に１回転する範囲において、一定の大きさになるように設定されている
　ことを特徴とする。 In the drive control system,
The widths of the plurality of magnetic poles of the first polarity of the sensor in the rotation direction of the motor are set differently to increase or decrease in order of one rotation in the rotation direction of the motor. Is set,
The difference between the widths of the two magnetic poles of the first polarity that are continuous in the rotation direction of the motor is set to be constant within a range of one rotation in the rotation direction of the motor. It is characterized by.

　前記駆動制御システムにおいて、
　前記連続する２つの前記第１の極性の磁極の幅の前記差に対応する前記回転子の角度が３°、６°、又は、１２°である
　ことを特徴とする。 In the drive control system,
The rotor angle corresponding to the difference between the widths of the two consecutive magnetic poles of the first polarity is 3 °, 6 °, or 12 °.

　前記駆動制御システムにおいて、
　前記モータの前記回転方向における複数の前記第２の極性の磁極の幅は、前記連続する２つの前記第１の極性の磁極の幅の前記差よりも、大きい
　ことを特徴とする。 In the drive control system,
A width of the plurality of second polarity magnetic poles in the rotation direction of the motor is larger than the difference between the widths of the two consecutive magnetic poles of the first polarity.

　前記駆動制御システムにおいて、
　前記モータの前記回転方向における複数の前記第２の極性の磁極の幅は、前記連続する２つの前記第１の極性の磁極の幅の前記差の３倍である
　ことを特徴とする。 In the drive control system,
A width of the plurality of magnetic poles of the second polarity in the rotation direction of the motor is three times the difference between the widths of the two consecutive magnetic poles of the first polarity.

　前記駆動制御システムにおいて、
　前記制御部は、
　前記パルス信号が前記第２のレベルとなる第２時間を測定し、測定した前記第２時間と前記第２の極性の磁極の幅に基づいて、前記モータの前記回転子の角速度を算出し、　
　前記第２時間を測定した後に、前記パルス信号が前記第１のレベルとなる第１時間を測定し、測定した前記第１時間と算出した前記角速度に基づいて、前記第２時間が測定された第２の極性の磁極に隣接する第１の極性の磁極の幅を推定し、推定した第１の極性の磁極の幅に関連付けられた前記モータの位相を特定することで、前記モータの位相を検出する
　ことを特徴とする。 In the drive control system,
The controller is
Measuring the second time when the pulse signal is at the second level, and calculating the angular velocity of the rotor of the motor based on the measured second time and the width of the magnetic pole of the second polarity;
After measuring the second time, the first time when the pulse signal is at the first level is measured, and the second time is measured based on the measured first time and the calculated angular velocity. Estimating the width of the magnetic pole of the first polarity adjacent to the magnetic pole of the second polarity, and identifying the phase of the motor associated with the estimated width of the magnetic pole of the first polarity; It is characterized by detection.

　前記駆動制御システムにおいて、
　前記制御部は、
　前記パルス信号が前記第２のレベルとなる第２時間を測定した後、前記第１時間を測定し、再度、前記パルス信号が前記第２のレベルとなる第２時間を測定し、測定した２つの前記第２時間の平均値と前記第２の極性の磁極の幅に基づいて、前記モータの前記回転子の角速度を算出する
　ことを特徴とする。 In the drive control system,
The controller is
After measuring the second time when the pulse signal becomes the second level, measure the first time, and again measure the second time when the pulse signal becomes the second level, and measure 2 The angular velocity of the rotor of the motor is calculated based on the average value of the two second times and the width of the magnetic pole of the second polarity.

　前記駆動制御システムにおいて、
　前記第１の極性の磁極の幅と前記モータの位相とを関連付けて記憶する記憶部Ｍをさらに備えることを特徴とする。 In the drive control system,
A storage unit M that stores the width of the magnetic pole having the first polarity and the phase of the motor in association with each other is further provided.

　前記駆動制御システムにおいて、
　前記制御部は、前記モータの位相の検出時に、前記記憶部から、推定した前記第１の極性の磁極の幅に関連付けられた前記モータの位相を読み出す
　ことを特徴とする。 In the drive control system,
The controller reads out the phase of the motor associated with the estimated width of the magnetic pole of the first polarity from the storage unit when detecting the phase of the motor.

　前記駆動制御システムにおいて、
　前記モータは、前記回転子が内燃機関のクランク軸に接続されるとともに、前記内燃機関にトルクを付与するものであり、
　前記制御部は、前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記内燃機関のクランクの位相を検出する
　ことを特徴とする。 In the drive control system,
The motor is configured such that the rotor is connected to a crankshaft of an internal combustion engine and torque is applied to the internal combustion engine.
The control unit detects a crank phase of the internal combustion engine based on the pulse signal output from the Hall element of the sensor.

　前記駆動制御システムにおいて、
　前記制御部は、前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記モータが回転している方向を特定する
　ことを特徴とする。 In the drive control system,
The control unit specifies a direction in which the motor is rotating based on the pulse signal output from the Hall element of the sensor.

　前記駆動制御システムにおいて、
　前記ホール素子は、前記モータの前記回転子の外周に回転方向に沿って複数個設けられていることを特徴とする。 In the drive control system,
A plurality of the hall elements are provided along the rotation direction on the outer periphery of the rotor of the motor.

　前記駆動制御システムにおいて、
　前記駆動制御システムは、二輪車に積載され、前記モータは前記二輪車の内燃機関に接続され、前記制御部は、前記ドライバ回路により前記モータを駆動することにより、前記内燃機関を駆動する
　ことを特徴とする。 In the drive control system,
The drive control system is mounted on a two-wheeled vehicle, the motor is connected to an internal combustion engine of the two-wheeled vehicle, and the control unit drives the internal combustion engine by driving the motor by the driver circuit. To do.

　前記駆動制御システムにおいて、
　前記モータの前記回転子における、最小の幅の第１の極性の磁極の位置は、内燃機関の上死点のクランク角に対応していることを特徴とする。 In the drive control system,
The position of the magnetic pole of the first polarity with the minimum width in the rotor of the motor corresponds to the crank angle at the top dead center of the internal combustion engine.

　前記駆動制御システムにおいて、前記ホール素子は、前記回転子の前記外周と対向する位置に設けられていることを特徴とする。 In the drive control system, the Hall element is provided at a position facing the outer periphery of the rotor.

　本発明の一態様に係る実施形態に従った駆動制御システムの制御方法は、
　モータと、前記モータの回転子の外周に回転方向に沿って設けられ、前記モータの回転方向に第１の極性の磁極と第２の極性の磁極とが交互に複数個配置されて構成された検出用磁石と、前記モータの固定子に設けられ、前記検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベルのパルス信号を出力するとともに前記検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベルのパルス信号を出力するホール素子と、を含むセンサと、前記モータの動作を制御するドライバ回路と、制御部と、を備えた駆動制御システムの制御方法であって、
　前記制御部により、前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記モータの位相を検出するとともに、前記ドライバ回路を制御して前記モータを駆動すること、を備え、
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に異なって設定されており、　
　前記モータの前記回転方向における前記センサの複数の前記第２の極性の磁極の幅は、同じになるように設定されている
　ことを特徴とする。 A control method of a drive control system according to an embodiment according to an aspect of the present invention includes:
The motor and the outer periphery of the rotor of the motor are provided along the rotation direction, and a plurality of first polarity magnetic poles and second polarity magnetic poles are alternately arranged in the rotation direction of the motor. When a magnetic flux of a first polarity magnet of the detection magnet is detected, a first level pulse signal is output and a second polarity of the detection magnet is provided on the detection magnet and the stator of the motor. A control method for a drive control system, comprising: a sensor including a Hall element that outputs a pulse signal of a second level when the magnetic flux of the magnetic pole of the motor is detected; a driver circuit that controls the operation of the motor; Because
The controller detects the phase of the motor based on the pulse signal output from the Hall element of the sensor, and controls the driver circuit to drive the motor,
The widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor,
The widths of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor are set to be the same.

　本発明の一態様に係る実施形態に従ったモータは、
　モータであって、
　回転子と、
　固定子と、を備え、
　センサの検出用磁石が、前記モータの前記回転子の外周に回転方向に沿って設けられ、前記モータの回転方向に第１の極性の磁極と第２の極性の磁極とが交互に複数個配置されて構成され、
　前記センサのホール素子が、前記モータの前記固定子にに設けられ、
　前記ホール素子は、前記検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベルのパルス信号を出力するとともに前記検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベルのパルス信号を出力するものであり
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に異なって設定されており、　
　前記モータの前記回転方向における前記センサの複数の前記第２の極性の磁極の幅は、同じになるように設定されている
　ことを特徴とする。 A motor according to an embodiment of one aspect of the present invention includes:
A motor,
A rotor,
A stator, and
Sensor detection magnets are provided on the outer periphery of the rotor of the motor along the rotation direction, and a plurality of first polarity magnetic poles and second polarity magnetic poles are alternately arranged in the rotation direction of the motor. Is configured,
A hall element of the sensor is provided in the stator of the motor;
The Hall element outputs a first level pulse signal when detecting the magnetic flux of the first polarity magnet of the detection magnet, and detects the magnetic flux of the second polarity magnetic pole of the detection magnet. The width of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor is set differently in the rotation direction of the motor,
The widths of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor are set to be the same.

　本発明の一態様に係る駆動制御システムは、モータと、モータの回転子の外周に回転方向に沿って設けられ、モータの回転方向に第１の極性（例えば、Ｎ極）の磁極と第２の極性（例えば、Ｓ極）の磁極とが交互に複数個配置されて構成された検出用磁石と、モータの固定子に回転子の外周と対向する位置に設けられ、検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベル（例えば、“Ｈｉｇｈ”レベル）のパルス信号を出力するとともに検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベル（例えば、“Ｌｏｗ”レベル）のパルス信号を出力するホール素子と、を含むセンサと、モータの動作を制御するドライバ回路と、センサのホール素子が出力するパルス信号に基づいて、モータの位相を検出するとともに、ドライバ回路を制御してモータを駆動する制御部と、を備える。 The drive control system according to one aspect of the present invention is provided along the rotation direction on the outer periphery of the motor and the rotor of the motor, and the magnetic pole having the first polarity (for example, N pole) and the second in the rotation direction of the motor. Detection magnets configured by alternately arranging a plurality of magnetic poles of the same polarity (for example, S poles) and a first stator of the detection magnets provided at a position opposite to the outer periphery of the rotor on the stator of the motor. When detecting the magnetic flux of the magnet having the polarity of, the first level (for example, “High” level) pulse signal is output, and when detecting the magnetic flux of the magnetic pole of the second polarity of the detecting magnet, the second level (for example, A sensor including a Hall element that outputs a pulse signal of “Low” level), a driver circuit that controls the operation of the motor, and a phase of the motor based on the pulse signal output by the Hall element of the sensor , De Controls driver circuit and a control unit for driving the motor.

　そして、モータの回転方向におけるセンサの複数の第１の極性の磁極の幅は、モータの回転方向に（順回転方向及び逆回転方向を含む方向）に異なって設定されており、モータの回転方向におけるセンサの複数の第２の極性の磁極の幅は、同じになるように設定されている。 The widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor (including the forward rotation direction and the reverse rotation direction). The widths of the plurality of second polarity magnetic poles of the sensor are set to be the same.

　このように、本発明の駆動制御システムでは、センサの複数の第１の極性の磁極の幅が異なって（不均一に）設定されており、複数の第２の極性の磁極の幅は、同じになるように設定されていることから、センサのホール素子が出力するパルス信号に基づいて、モータが３６０°回転する前に、モータの位相が特定されることとなる。 Thus, in the drive control system of the present invention, the widths of the plurality of first polarity magnetic poles of the sensor are set differently (non-uniformly), and the widths of the plurality of second polarity magnetic poles are the same. Therefore, based on the pulse signal output from the Hall element of the sensor, the phase of the motor is specified before the motor rotates 360 °.

　すなわち、本発明の駆動制御システムによれば、モータの位相を特定する時間を短縮して、モータ制御の高速化を図ることができる。 That is, according to the drive control system of the present invention, it is possible to shorten the time for specifying the phase of the motor and to increase the speed of the motor control.

図１は、実施例１に係る駆動制御システム１０００の構成の一例を示す図である。FIG. 1 is a diagram illustrating an example of a configuration of a drive control system 1000 according to the first embodiment. 図２は、図１に示すモータ１０２及びセンサ１０４の概略構成の一例を示す図である。FIG. 2 is a diagram illustrating an example of a schematic configuration of the motor 102 and the sensor 104 illustrated in FIG. 図３は、図１、図２に示すセンサ１０４が出力するパルス信号と、内燃機関１０３のクランク角（モータ１０２の回転角）との関係の一例を示す図である。FIG. 3 is a diagram showing an example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102). 図４は、図１、図２に示すセンサ１０４が出力するパルス信号と、内燃機関１０３のクランク角（モータ１０２の回転角）との関係の他の例を示す図である。FIG. 4 is a diagram showing another example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102). 図５は、従来の駆動制御システムのモータ及びセンサの概略構成の一例を示す図である。FIG. 5 is a diagram illustrating an example of a schematic configuration of a motor and a sensor of a conventional drive control system. 図６は、図５に示すセンサが出力するパルス信号と、内燃機関のクランク角（モータの回転角）との関係の一例を示す図である。FIG. 6 is a diagram showing an example of the relationship between the pulse signal output from the sensor shown in FIG. 5 and the crank angle (rotational angle of the motor) of the internal combustion engine.

　以下、本発明に係る実施形態について図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

　図１は、実施例１に係る駆動制御システム１０００の構成の一例を示す図である。また、図２は、図１に示すモータ１０２及びセンサ１０４の概略構成の一例を示す図である。また、図３は、図１、図２に示すセンサ１０４が出力するパルス信号と、内燃機関１０３のクランク角（モータ１０２の回転角）との関係の一例を示す図である。 FIG. 1 is a diagram illustrating an example of a configuration of a drive control system 1000 according to the first embodiment. FIG. 2 is a diagram illustrating an example of a schematic configuration of the motor 102 and the sensor 104 illustrated in FIG. 1. FIG. 3 is a diagram showing an example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102).

　本実施例１に係る内燃機関の駆動を制御する駆動制御システム１０００は、例えば、図１、図２に示すように、駆動制御装置（ＥＣＵ：Ｅｎｇｉｎｅ　Ｃｏｎｔｒｏｌ　Ｕｎｉｔ）１００と、バッテリＢと、モータ１０２と、エンジン（内燃機関）１０３と、センサ１０４と、を備える。なお、図１の例では、モータ１０２とセンサ１０４とが別々の構成として表記されているが、モータ１０２とセンサ１０４とが一体になっている形態も想定される。 A drive control system 1000 for controlling the drive of the internal combustion engine according to the first embodiment includes, for example, a drive control device (ECU: Engine Control Unit) 100, a battery B, and a motor 102 as shown in FIGS. And an engine (internal combustion engine) 103 and a sensor 104. In the example of FIG. 1, the motor 102 and the sensor 104 are described as separate configurations, but a mode in which the motor 102 and the sensor 104 are integrated is also assumed.

　この駆動制御システム１０００は、例えば、二輪車（図示せず）に積載される。この場合、モータ１０２は当該二輪車の内燃機関１０３に接続される。 The drive control system 1000 is mounted on, for example, a two-wheeled vehicle (not shown). In this case, the motor 102 is connected to the internal combustion engine 103 of the motorcycle.

　内燃機関１０３は、ここでは、例えば、４ストロークエンジンである。したがって、内燃機関１０３の状態は、吸気行程、圧縮行程、燃焼行程、および、排気行程を遷移するようになっている。 Here, the internal combustion engine 103 is, for example, a 4-stroke engine. Therefore, the state of the internal combustion engine 103 changes between an intake stroke, a compression stroke, a combustion stroke, and an exhaust stroke.

　また、図１に示すように、バッテリＢは、モータ１０２に駆動電力を供給し、または、モータ１０２による回生電力を充電するようになっている。 Further, as shown in FIG. 1, the battery B supplies driving power to the motor 102 or charges regenerative power by the motor 102.

　そして、モータ１０２は、回転子１０２ａが内燃機関のクランク軸Ｘに接続されるとともに、内燃機関１０３（すなわち、内燃機関１０３のクランク）にトルクを付与するようになっている。 In the motor 102, the rotor 102a is connected to the crankshaft X of the internal combustion engine, and torque is applied to the internal combustion engine 103 (that is, the crank of the internal combustion engine 103).

　ここでは、モータ１０２は、内燃機関１０３のクランク軸Ｘにトルクを授受可能に連結されている。すなわち、このモータ１０２は、電動機と発電機の両方の機能を併せ持つ。このように、モータ１０２は、内燃機関１０３により駆動されて発電し、交流電圧を出力する交流発電機（ＡＣＧ）としても機能するようになっている。 Here, the motor 102 is connected to the crankshaft X of the internal combustion engine 103 so as to be able to transmit and receive torque. That is, the motor 102 has both functions of an electric motor and a generator. As described above, the motor 102 is driven by the internal combustion engine 103 to generate electric power, and also functions as an AC generator (ACG) that outputs an AC voltage.

　このモータ１０２は、例えば、図２に示すように、固定子１０２ｂと、この固定子１０２ｂに設けられたＵ相コイル、Ｖ相コイル、及びＷ相コイル（図示せず）と、内燃機関１０３のクランク軸Ｘが接続された回転子１０２ａと、を含む。 For example, as shown in FIG. 2, the motor 102 includes a stator 102 b, a U-phase coil, a V-phase coil, and a W-phase coil (not shown) provided on the stator 102 b, and an internal combustion engine 103. And a rotor 102a to which the crankshaft X is connected.

　また、センサ１０４は、例えば、内燃機関１０３の回転速度（ｒｐｍ）およびクランク角（例えば、回転角度の変化、上死点）を検出し、この検出結果に応じた信号を出力するようになっている。 The sensor 104 detects, for example, the rotational speed (rpm) and crank angle (for example, change in rotational angle, top dead center) of the internal combustion engine 103, and outputs a signal corresponding to the detection result. Yes.

　このセンサ１０４は、例えば、図２に示すように、検出用磁石１０４ａと、ホール素子１０４ｂと、を含む。 The sensor 104 includes, for example, a detection magnet 104a and a hall element 104b as shown in FIG.

　そして、検出用磁石１０４ａは、モータ１０２の回転子１０２ａの外周に回転方向Ｒに沿って設けられている。 The detection magnet 104 a is provided along the rotation direction R on the outer periphery of the rotor 102 a of the motor 102.

　この検出用磁石１０４ａは、モータ１０２の回転方向Ｒに第１の極性（図２の例では、例えば、Ｎ極）の磁極Ｇ１と第２の極性（図２の例では、例えば、Ｓ極）の磁極Ｇ２とが交互に複数個配置されて構成されている。 The detection magnet 104a has a magnetic pole G1 having a first polarity (eg, N pole in the example of FIG. 2) and a second polarity (eg, S pole in the example of FIG. 2) in the rotation direction R of the motor 102. A plurality of magnetic poles G2 are alternately arranged.

　また、ホール素子１０４ｂは、モータ１０２の固定子１０２ｂに回転子１０２ａの外周と対向する位置（例えば、固定子１０２ｂの内周）に設けられている。 Further, the hall element 104b is provided at a position facing the stator 102b of the motor 102 and the outer periphery of the rotor 102a (for example, the inner periphery of the stator 102b).

　そして、例えば、このホール素子１０４ｂは、検出用磁石１０４ａの第１の極性Ｇ１の磁石の磁束を検出すると第１のレベル（例えば、“Ｈｉｇｈ”レベル）のパルス信号を出力するようになっている。 For example, the Hall element 104b outputs a pulse signal of the first level (for example, “High” level) when detecting the magnetic flux of the first polarity G1 magnet of the detection magnet 104a. .

　一方、このホール素子１０４ｂは、検出用磁石１０４ａの第２の極性Ｇ２の磁極Ｇの磁束を検出すると第２のレベル（例えば、“Ｌｏｗ”レベル）のパルス信号を出力するようになっている。 On the other hand, when detecting the magnetic flux of the magnetic pole G of the second polarity G2 of the detection magnet 104a, the Hall element 104b outputs a pulse signal of the second level (for example, “Low” level).

　なお、ホール素子１０４ｂは、図２の例では１個であるが、モータ１０２の回転子１０２ａの外周に回転方向Ｒに沿って複数個設けられているようにしてもよい。これにより、検出用磁石１０４ａの磁束の検出の精度を向上することができる。 Note that the number of hall elements 104b is one in the example of FIG. 2, but a plurality of hall elements 104b may be provided along the rotation direction R on the outer periphery of the rotor 102a of the motor 102. Thereby, the accuracy of magnetic flux detection of the detection magnet 104a can be improved.

　ここで、例えば、図２に示すように、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第１の極性（Ｎ極）の磁極Ｇ１の幅（長さ）は、モータ１０２の回転方向Ｒ（順回転方向及び逆回転方向を含む方向）に異なって設定されている。 Here, for example, as shown in FIG. 2, the width (length) of the magnetic pole G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotational direction R of the motor 102 is the rotational direction R ( It is set differently in the direction including the forward rotation direction and the reverse rotation direction).

　この図２の例では、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第１の極性の磁極Ｇ１の幅は、モータ１０２の回転方向Ｒに１回転する順番に、大きくなるように異なって設定されている。 In the example of FIG. 2, the widths of the plurality of first polarity magnetic poles G <b> 1 of the sensor 104 in the rotation direction R of the motor 102 are set differently so as to increase in the order of one rotation in the rotation direction R of the motor 102. Has been.

　特に、図２の例では、最小の第１の極性の磁極Ｇ１の幅（長さ）は、モータ１０２の回転角１２°に対応している。そして、この第１の極性の磁極Ｇ１の幅は、モータ１０２の回転方向Ｒに１回転する順番に、モータ１０２の回転角１２°に対応する幅の単位で、大きくなるように設定されている。そして、最大の第１の極性の磁極Ｇ１の幅は、モータ１０２の回転角１２°×５＝６０°に対応している。 In particular, in the example of FIG. 2, the minimum width (length) of the magnetic pole G1 having the first polarity corresponds to the rotation angle of the motor 102 of 12 °. The width of the magnetic pole G1 having the first polarity is set so as to increase in the unit of the width corresponding to the rotation angle 12 ° of the motor 102 in the order of one rotation in the rotation direction R of the motor 102. . The maximum width of the magnetic pole G1 having the first polarity corresponds to the rotation angle 12 ° × 5 = 60 ° of the motor 102.

　また、この図２の例では、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第２の極性の磁極（Ｓ極）Ｇ２の幅（長さ）は、同じ（モータ１０２の回転角１２°×３＝３６°）になるように設定されている。 In the example of FIG. 2, the width (length) of the plurality of second polarity magnetic poles (S poles) G2 of the sensor 104 in the rotation direction R of the motor 102 is the same (the rotation angle of the motor 102 is 12 ° × 3 = 36 °).

　なお、モータ１０２の回転子１０２ａにおける、既述の最小の幅の第１の極性の磁極Ｇ１の位置は、例えば、内燃機関の上死点のクランク角（モータの位相）に対応している。 Note that the position of the first polarity magnetic pole G1 having the minimum width described above in the rotor 102a of the motor 102 corresponds to, for example, the top dead center crank angle (motor phase) of the internal combustion engine.

　なお、モータ１０２の回転方向Ｒと直交する方向における、センサ１０４の複数の第１の極性の磁極（Ｎ極）Ｇ１及び第２の磁極（Ｓ極）Ｇ２の大きさは、例えば、同じになっている。 Note that the sizes of the plurality of first magnetic poles (N poles) G1 and second magnetic poles (S poles) G2 of the sensor 104 in the direction orthogonal to the rotation direction R of the motor 102 are, for example, the same. ing.

　また、モータ１０２の回転方向Ｒにおいて連続する２つの第１の極性の磁極Ｇ１の幅の差が、モータ１０２の回転方向Ｒに１回転する範囲において、一定の大きさになるように設定されている。 Further, the width difference between the two magnetic poles G1 of the first polarity that are continuous in the rotation direction R of the motor 102 is set so as to be constant within a range of one rotation in the rotation direction R of the motor 102. Yes.

　特に、図２に示す例では、連続する２つの第１の極性の磁極Ｇ１の幅の既述の差（例えば、モータ１０２の回転角４８°に対応する幅－回転角３６°に対応する幅）に対応する回転子１０２ａの角度が、例えば、１２°（モータ１０２の回転角１２°に対応）である。しかしながら、連続する２つの第１の極性の磁極Ｇ１の幅の既述の差に対応する回転子１０２ａの角度が、３°又は６°（モータ１０２の回転角３°又は６°に対応）であってもよい。 In particular, in the example shown in FIG. 2, the above-described difference between the widths of the two consecutive magnetic poles G1 having the first polarity (for example, the width corresponding to the rotation angle 48 ° of the motor 102−the width corresponding to the rotation angle 36 °). ) Is, for example, 12 ° (corresponding to a rotation angle 12 ° of the motor 102). However, the angle of the rotor 102a corresponding to the above-described difference between the widths of the two consecutive magnetic poles G1 having the first polarity is 3 ° or 6 ° (corresponding to the rotation angle 3 ° or 6 ° of the motor 102). There may be.

　また、例えば、図２に示すように、モータ１０２の回転方向Ｒにおける複数の第２の極性の磁極Ｇ２の幅（図２の例では、モータ１０２の回転角３６°に対応）は、連続する２つの第１の極性の磁極Ｇ１の幅の既述の差（図２の例では、モータ１０２の回転角１２°に対応）よりも、大きくなるように設定されている。 For example, as shown in FIG. 2, the widths of the plurality of second polarity magnetic poles G2 in the rotation direction R of the motor 102 (corresponding to the rotation angle 36 ° of the motor 102 in the example of FIG. 2) are continuous. It is set to be larger than the above-described difference between the widths of the two first polarity magnetic poles G1 (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2).

　また、例えば、図２に示すように、モータ１０２の回転方向Ｒにおける複数の第２の極性の磁極Ｇの幅（図２の例では、モータ１０２の回転角３６°に対応）は、例えば、連続する２つの第１の極性の磁極Ｇ１の幅の既述の差（図２の例では、モータ１０２の回転角１２°に対応）の３倍である。 For example, as shown in FIG. 2, the widths of the plurality of second polarity magnetic poles G in the rotation direction R of the motor 102 (corresponding to the rotation angle 36 ° of the motor 102 in the example of FIG. 2) are, for example, This is three times the above-described difference (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2) of the widths of the two consecutive magnetic poles G1 having the first polarity.

　なお、図２の例では、第１の磁極Ｇ１をＮ極とし、第２の磁極Ｇ２をＳ極としているが、第１の磁極Ｇ１をＳ極とし、第２の磁極Ｇ２をＮ極としてもよい。 In the example of FIG. 2, the first magnetic pole G1 is an N pole and the second magnetic pole G2 is an S pole. However, the first magnetic pole G1 is an S pole and the second magnetic pole G2 is an N pole. Good.

　なお、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第１の極性の磁極（Ｎ極）Ｇ１の幅は、モータ１０２の回転方向Ｒに１回転する順番に、小さくなるように異なって設定されていてもよい。 The widths of the plurality of first polarity magnetic poles (N poles) G1 of the sensor 104 in the rotation direction R of the motor 102 are set differently so as to decrease in the order of one rotation in the rotation direction R of the motor 102. It may be.

　ここで、駆動制御装置１００は、例えば、図１に示すように、センサ１０４が出力する信号（すなわち、当該信号から得られるモータ１０２の回転速度および位相（クランク角、例えば、回転角度の変化、上死点））に基づいて、モータ１０２及び内燃機関１０３の駆動を制御するようになっている。 Here, for example, as shown in FIG. 1, the drive control apparatus 100 outputs a signal output from the sensor 104 (that is, the rotation speed and phase of the motor 102 obtained from the signal (crank angle, for example, change in rotation angle, Based on the top dead center)), the drive of the motor 102 and the internal combustion engine 103 is controlled.

　この駆動制御装置１００は、例えば、図1に示すように、制御部（ＣＰＵ：Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）ＣＯＮと、記憶部Ｍと、ドライバ回路Ｄと、を有する。 The drive control apparatus 100 includes, for example, a control unit (CPU: Central Processing Unit) CON, a storage unit M, and a driver circuit D as shown in FIG.

　そして、ドライバ回路Ｄは、内燃機関１０３にトルクを付与するモータ１０２の動作を制御するようになっている。 The driver circuit D is configured to control the operation of the motor 102 that applies torque to the internal combustion engine 103.

　また、記憶部Ｍは、内燃機関１０３の始動等を制御するため（モータ１０２を制御するための）のマップを記憶するようになっている。 Further, the storage unit M is configured to store a map for controlling the start of the internal combustion engine 103 (for controlling the motor 102).

　特に、記憶部Ｍは、複数の第１の極性の磁極Ｇ１のそれぞれの幅とモータ１０２の位相とを関連付けて記憶するようになっている。 In particular, the storage unit M is configured to store the width of each of the plurality of first polarity magnetic poles G1 and the phase of the motor 102 in association with each other.

　ここで、既述のように、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第１の極性（Ｎ極）の磁極Ｇ１の幅は、モータ１０２の回転方向Ｒ（順回転方向及び逆回転方向を含む方向）に異なって設定されている。このため、複数の第１の極性の磁極Ｇ１の異なる幅と、それぞれ異なるモータ１０２の位相とを、一対一に対応するように設定して、記憶部Ｍに記憶することができる。 Here, as described above, the width of the magnetic pole G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotation direction R of the motor 102 is equal to the rotation direction R (forward rotation direction and reverse rotation direction) of the motor 102. Are set differently). For this reason, the different widths of the plurality of first polarity magnetic poles G1 and the phases of the different motors 102 can be set so as to correspond one-to-one and stored in the storage unit M.

　また、制御部ＣＯＮは、電源が投入された後、内燃機関１０３の始動（点火制御）前に、センサ１０４のホール素子１０４ｂが出力するパルス信号に基づいて、モータ１０２の位相（内燃機関のクランクの位相（クランク角））を検出するようになっている。さらに、制御部ＣＯＮは、センサ１０４のホール素子１０４ｂが出力する当該パルス信号に基づいて、モータ１０２が回転している方向を特定するようになっている。 Further, the control unit CON, after the power is turned on, before the start of the internal combustion engine 103 (ignition control), based on the pulse signal output from the Hall element 104b of the sensor 104 (the crank of the internal combustion engine) Phase (crank angle)) is detected. Further, the control unit CON identifies the direction in which the motor 102 is rotating based on the pulse signal output from the Hall element 104b of the sensor 104.

　そして、制御部ＣＯＮは、記憶部Ｍを参照し、センサ１０４を用いて検出した内燃機関１０３の回転速度およびクランク角（例えば、回転角度の変化、上死点）に基づいて、ドライバ回路Ｄを制御してモータ１０２を駆動することにより、内燃機関１０３を起動するとともに、内燃機関１０３を駆動するようになっている。 Then, the control unit CON refers to the storage unit M and determines the driver circuit D based on the rotation speed and crank angle (for example, change in rotation angle, top dead center) of the internal combustion engine 103 detected using the sensor 104. By controlling and driving the motor 102, the internal combustion engine 103 is started and the internal combustion engine 103 is driven.

　このように、制御部ＣＯＮは、電源が投入された後、内燃機関１０３の始動（点火制御）前に、モータ１０２を回転させて、センサ１０４のホール素子１０４ｂが出力するパルス信号に基づいて、モータ１０２の位相（内燃機関のクランクの位相（クランク角））を検出して、この検出結果に基づいて、モータ１０２を駆動しつつ、内燃機関１０３を駆動するようになっている。 As described above, the control unit CON rotates the motor 102 after the power is turned on and before starting (ignition control) of the internal combustion engine 103, and based on the pulse signal output from the Hall element 104b of the sensor 104, The phase of the motor 102 (the crank phase (crank angle) of the internal combustion engine) is detected, and the internal combustion engine 103 is driven while the motor 102 is driven based on the detection result.

　ここで、制御部ＣＯＮは、例えば、センサ１０４のホール素子１０４ｂが出力するパルス信号が第２のレベル（“Ｌｏｗ”レベル）となる第２時間（ｔｌ）を測定するようになっている（図３）。 Here, for example, the control unit CON measures the second time (tl) when the pulse signal output from the Hall element 104b of the sensor 104 becomes the second level (“Low” level) (FIG. 5). 3).

　そして、制御部ＣＯＮは、測定した第２時間（ｔｌ）と第２の極性の磁極Ｇ２の幅に基づいて、モータ１０２の回転子１０２ａの角速度を算出するようになっている。 The control unit CON calculates the angular velocity of the rotor 102a of the motor 102 based on the measured second time (tl) and the width of the magnetic pole G2 having the second polarity.

　なお、第２の極性の磁極Ｇ２の幅は、既述のように固定された（一定の）既知の値であるので、この既知の幅の値を測定した第２時間（ｔｌ）で除算することで、モータ１０２の回転子１０２ａの角速度を算出することができる。 Note that the width of the magnetic pole G2 having the second polarity is a fixed (constant) known value as described above, and thus the value of the known width is divided by the measured second time (tl). Thus, the angular velocity of the rotor 102a of the motor 102 can be calculated.

　そして、制御部ＣＯＮは、当該第２時間（ｔｌ）を測定した後に、パルス信号が第１のレベル（“Ｈｉｇｈ”レベル）となる第１時間（ｔｈ）を測定するようになっている（図３）。 Then, after measuring the second time (tl), the control unit CON measures the first time (th) when the pulse signal becomes the first level (“High” level) (FIG. 3).

　そして、制御部ＣＯＮは、測定した第１時間（ｔｈ）と算出した角速度に基づいて、当該第２時間が測定された第２の極性の磁極Ｇ２に隣接する第１の極性の磁極Ｇ１の幅を推定するようになっている。 Then, based on the measured first time (th) and the calculated angular velocity, the controller CON determines the width of the magnetic pole G1 having the first polarity adjacent to the magnetic pole G2 having the second polarity measured for the second time. Is supposed to be estimated.

　なお、測定した第１時間（ｔｈ）と算出した当該角速度とを乗算することで、当該第１の極性の磁極Ｇ１の幅が算出（推定）される。 The width of the magnetic pole G1 having the first polarity is calculated (estimated) by multiplying the measured first time (th) by the calculated angular velocity.

　そして、制御部ＣＯＮは、モータ１０２の位相の検出時に、記憶部Ｍから、推定した第１の極性の磁極Ｇの幅に関連付けられたモータ１０２の位相を読み出すようになっている。 The control unit CON reads the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity from the storage unit M when the phase of the motor 102 is detected.

　そして、制御部ＣＯＮは、推定した第１の極性の磁極Ｇの幅に関連付けられたモータ１０２の位相を特定することで、モータ１０２の位相を検出するようになっている。 The control unit CON detects the phase of the motor 102 by specifying the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity.

　ここで、既述のように、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第１の極性（Ｎ極）の磁極Ｇ１の幅は、モータ１０２の回転方向Ｒに異なって設定されている。さらに、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第２の極性の磁極（Ｓ極）Ｇ２の幅（長さ）は、同じになるように設定されている。 Here, as described above, the widths of the magnetic poles G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotation direction R of the motor 102 are set differently in the rotation direction R of the motor 102. Further, the widths (lengths) of the plurality of second polarity magnetic poles (S poles) G2 of the sensor 104 in the rotation direction R of the motor 102 are set to be the same.

　これにより、センサ１０４のホール素子が出力するパルス信号に基づいて、モータ１０２が３６０°回転する前に、モータ１０２の位相が特定されることとなる。 Thus, based on the pulse signal output from the Hall element of the sensor 104, the phase of the motor 102 is specified before the motor 102 rotates 360 °.

　さらに、既述のように、モータ１０２の回転方向Ｒにおける複数の第２の極性の磁極Ｇ２の幅（図２の例では、モータ１０２の回転角３６°に対応）は、連続する２つの第１の極性の磁極Ｇ１の幅の既述の差（図２の例では、モータ１０２の回転角１２°に対応）よりも、大きくなるように設定されている。 Further, as described above, the widths of the plurality of second polarity magnetic poles G2 in the rotation direction R of the motor 102 (corresponding to the rotation angle 36 ° of the motor 102 in the example of FIG. 2) It is set to be larger than the above-described difference in the width of the magnetic pole G1 having one polarity (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2).

　これにより、制御部ＣＯＮは、より確実にパルス信号のレベルの変化を検出して、モータ１０２の位相の推定を実行することができる。 Thereby, the control unit CON can detect the change in the level of the pulse signal more reliably and can estimate the phase of the motor 102.

　以上のように、本実施例１に係る駆動制御システム１０００によれば、センサ１０４の複数の第１の極性の磁極Ｇの幅が全て異なって（不均一に）設定されており、複数の第２の極性の磁極Ｇの幅は、全て同じになるように設定されていることから、センサ１０４のホール素子が出力するパルス信号に基づいて、モータ１０２が３６０°回転する前に、モータ１０２の位相が特定されることとなる。 As described above, according to the drive control system 1000 according to the first embodiment, the widths of the plurality of first polarity magnetic poles G of the sensor 104 are all set differently (non-uniformly), and the plurality of first Since the widths of the magnetic poles G having the two polarities are all set to be the same, based on the pulse signal output from the Hall element of the sensor 104, before the motor 102 rotates 360 °, The phase will be specified.

　すなわち、本実施例１に係る駆動制御システム１０００によれば、モータ１０２の位相を特定する時間を短縮して、モータ制御の高速化を図ることができる。 That is, according to the drive control system 1000 according to the first embodiment, it is possible to shorten the time for specifying the phase of the motor 102 and increase the speed of the motor control.

　次に、以上のような構成を有する駆動制御システム１０００の制御方法の一例について説明する。ここでは、特に、図３を参照して、制御部ＣＯＮが、センサ１０４が出力するパルス信号に基づいて、演算して、モータ１０２の位相を検出（推定）する動作について説明する。 Next, an example of a control method of the drive control system 1000 having the above configuration will be described. Here, in particular, with reference to FIG. 3, an operation in which the control unit CON calculates based on the pulse signal output from the sensor 104 and detects (estimates) the phase of the motor 102 will be described.

　先ず、制御部ＣＯＮは、例えば、駆動制御システム１０００に電源が投入された後、内燃機関１０３の始動（点火制御）前に、ドライバ回路Ｄを制御して、モータ１０２を回転させる。 First, for example, the control unit CON controls the driver circuit D to rotate the motor 102 after the drive control system 1000 is turned on and before the internal combustion engine 103 is started (ignition control).

　そして、図３に示すように、制御部ＣＯＮは、例えば、センサ１０４のホール素子１０４ｂが出力するパルス信号が第２のレベル（“Ｌｏｗ”レベル）となる（パルス（３）の後の）第２時間（ｔｌ）を測定する。 Then, as shown in FIG. 3, for example, the control unit CON sets the pulse signal output from the Hall element 104b of the sensor 104 to the second level (“Low” level) (after the pulse (3)). Measure 2 hours (tl).

　そして、制御部ＣＯＮは、測定した第２時間（ｔｌ）と第２の極性の磁極Ｇ２の幅に基づいて、モータ１０２の回転子１０２ａの角速度を算出する。 Then, the controller CON calculates the angular velocity of the rotor 102a of the motor 102 based on the measured second time (tl) and the width of the magnetic pole G2 having the second polarity.

　なお、第２の極性の磁極Ｇ２の幅は、既述のように固定された（一定の）既知の値であるので、この既知の幅の値を測定した第２時間（ｔｌ）で除算することで、モータ１０２の回転子１０２ａの角速度を算出することができる。 Note that the width of the magnetic pole G2 having the second polarity is a fixed (constant) known value as described above, and thus the value of the known width is divided by the measured second time (tl). Thus, the angular velocity of the rotor 102a of the motor 102 can be calculated.

　そして、制御部ＣＯＮは、当該第２時間（ｔｌ）を測定した後に、パルス信号が第１のレベル（“Ｈｉｇｈ”レベル）となる（パルス（４）の）第１時間（ｔｈ）を測定する。 Then, after measuring the second time (tl), the controller CON measures the first time (th) of the pulse signal at the first level (“High” level) (of the pulse (4)). .

　そして、制御部ＣＯＮは、測定した第１時間（ｔｈ）と算出した角速度に基づいて、当該第２時間が測定された第２の極性の磁極Ｇ２に隣接する第１の極性の磁極Ｇ１の幅を推定する。 Then, based on the measured first time (th) and the calculated angular velocity, the controller CON determines the width of the magnetic pole G1 having the first polarity adjacent to the magnetic pole G2 having the second polarity measured for the second time. Is estimated.

　なお、パルス（４）の幅に対応する測定した第１時間（ｔｈ）と、算出した当該角速度とを乗算することで、当該第１の極性の磁極Ｇ１の幅が算出（推定）される。 The width of the magnetic pole G1 having the first polarity is calculated (estimated) by multiplying the measured first time (th) corresponding to the width of the pulse (4) by the calculated angular velocity.

　そして、制御部ＣＯＮは、モータ１０２の位相の検出時に、記憶部Ｍから、推定した第１の極性の磁極Ｇの幅に関連付けられたモータ１０２の位相を読み出す。 The control unit CON reads the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity from the storage unit M when detecting the phase of the motor 102.

　そして、制御部ＣＯＮは、推定した第１の極性の磁極Ｇの幅に関連付けられたモータ１０２の位相を特定することで、モータ１０２の位相を検出する。 The control unit CON detects the phase of the motor 102 by specifying the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity.

　ここで、既述のように、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第１の極性（Ｎ極）の磁極Ｇ１の幅は、モータ１０２の回転方向Ｒに異なって設定されている。さらに、モータ１０２の回転方向Ｒにおけるセンサ１０４の複数の第２の極性の磁極（Ｓ極）Ｇ２の幅（長さ）は、同じになるように設定されている。 Here, as described above, the widths of the magnetic poles G1 of the plurality of first polarities (N poles) of the sensor 104 in the rotation direction R of the motor 102 are set differently in the rotation direction R of the motor 102. Further, the widths (lengths) of the plurality of second polarity magnetic poles (S poles) G2 of the sensor 104 in the rotation direction R of the motor 102 are set to be the same.

　これにより、センサ１０４のホール素子が出力するパルス信号に基づいて、モータ１０２が３６０°回転する前に、モータ１０２の位相が特定されることとなる。 Thus, based on the pulse signal output from the Hall element of the sensor 104, the phase of the motor 102 is specified before the motor 102 rotates 360 °.

　さらに、既述のように、モータ１０２の回転方向Ｒにおける複数の第２の極性の磁極Ｇ２の幅（図２の例では、モータ１０２の回転角３６°に対応）は、連続する２つの第１の極性の磁極Ｇ１の幅の既述の差（図２の例では、モータ１０２の回転角１２°に対応）よりも、大きくなるように設定されている。 Further, as described above, the widths of the plurality of second polarity magnetic poles G2 in the rotation direction R of the motor 102 (corresponding to the rotation angle 36 ° of the motor 102 in the example of FIG. 2) It is set to be larger than the above-described difference in the width of the magnetic pole G1 having one polarity (corresponding to the rotation angle 12 ° of the motor 102 in the example of FIG. 2).

　これにより、制御部ＣＯＮは、より確実にパルス信号のレベルの変化を検出して、モータ１０２の位相の推定を実行することができる。 Thereby, the control unit CON can detect the change in the level of the pulse signal more reliably and can estimate the phase of the motor 102.

　なお、図３の例では、最大位置決め回転角は、パルス（３）の幅、その後の“Ｌｏｗ”レベルの期間、及びパルス（４）の幅となり、モータ１０２を３６０°回転する前に、モータ１０２の位相を特定することができる。 In the example of FIG. 3, the maximum positioning rotation angle is the width of the pulse (3), the subsequent “Low” level period, and the width of the pulse (4), and before the motor 102 is rotated 360 °, the motor The phase of 102 can be specified.

　さらに、図３に示すように、モータの回転角は内燃機関１０３のクランク角と対応しており、モータの位相を特定することで、内燃機関のステージ（各工程）を特定することができる。 Further, as shown in FIG. 3, the rotation angle of the motor corresponds to the crank angle of the internal combustion engine 103, and the stage (each process) of the internal combustion engine can be specified by specifying the phase of the motor.

　これにより、制御部ＣＯＮは、記憶部Ｍを参照し、センサ１０４を用いて検出した内燃機関１０３の回転速度およびクランク角（例えば、回転角度の変化、上死点）に基づいて、ドライバ回路Ｄを制御してモータ１０２を駆動することにより、内燃機関１０３を起動するとともに、内燃機関１０３を駆動することができる。 Thereby, the control unit CON refers to the storage unit M, and based on the rotational speed and crank angle (for example, change in rotational angle, top dead center) of the internal combustion engine 103 detected using the sensor 104, the driver circuit D By controlling the above and driving the motor 102, the internal combustion engine 103 can be started and the internal combustion engine 103 can be driven.

　このように、本実施例１に係る駆動制御システム１０００の制御方法によれば、センサ１０４の複数の第１の極性の磁極Ｇの幅が異なって（不均一に）設定されており、複数の第２の極性の磁極Ｇの幅は、同じになるように設定されていることから、センサ１０４のホール素子が出力するパルス信号に基づいて、モータ１０２が３６０°回転する前に、モータ１０２の位相が特定されることとなる。 Thus, according to the control method of the drive control system 1000 according to the first embodiment, the widths of the plurality of first polarity magnetic poles G of the sensor 104 are set differently (non-uniformly), Since the width of the magnetic pole G of the second polarity is set to be the same, before the motor 102 rotates 360 ° based on the pulse signal output by the Hall element of the sensor 104, The phase will be specified.

　すなわち、本実施例１に係る駆動制御システム１０００の制御方法によれば、モータ１０２の位相を特定する時間を短縮して、モータ制御の高速化を図ることができる。 That is, according to the control method of the drive control system 1000 according to the first embodiment, it is possible to shorten the time for specifying the phase of the motor 102 and increase the speed of the motor control.

　本実施例２では、駆動制御システム１０００の制御方法の他の例について説明する。 In the second embodiment, another example of the control method of the drive control system 1000 will be described.

　ここで、図４は、図１、図２に示すセンサ１０４が出力するパルス信号と、内燃機関１０３のクランク角（モータ１０２の回転角）との関係の他の例を示す図である。 Here, FIG. 4 is a diagram showing another example of the relationship between the pulse signal output from the sensor 104 shown in FIGS. 1 and 2 and the crank angle of the internal combustion engine 103 (rotation angle of the motor 102).

　ここでは、特に、図４を参照して、制御部ＣＯＮが、センサ１０４が出力するパルス信号に基づいて、演算して、モータ１０２の位相を検出（推定）する動作について説明する。 Here, in particular, with reference to FIG. 4, an operation in which the control unit CON detects and estimates (estimates) the phase of the motor 102 based on the pulse signal output from the sensor 104 will be described.

　先ず、制御部ＣＯＮは、例えば、駆動制御システム１０００に電源が投入された後、内燃機関１０３の始動（点火制御）前に、ドライバ回路Ｄを制御して、モータ１０２を回転させる。 First, for example, the control unit CON controls the driver circuit D to rotate the motor 102 after the drive control system 1000 is turned on and before the internal combustion engine 103 is started (ignition control).

　そして、図４に示すように、制御部ＣＯＮは、例えば、センサ１０４のホール素子１０４ｂが出力するパルス信号が第２のレベル（“Ｌｏｗ”レベル）となる（パルス（２）の後の）第２時間（ｔｌ１）を測定する。 Then, as shown in FIG. 4, for example, the control unit CON sets the second level ("Low" level) of the pulse signal output from the Hall element 104b of the sensor 104 (after the pulse (2)). Measure for 2 hours (tl 1 ).

　そして、制御部ＣＯＮは、当該第２時間（ｔｌ１）を測定した後に、パルス信号が第１のレベル（“Ｈｉｇｈ”レベル）となる（パルス（３）の）第１時間（ｔｈ）を測定する。 Then, after measuring the second time (tl 1 ), the control unit CON measures the first time (th) of the pulse signal at the first level (“High” level) (of the pulse (3)). To do.

　そして、制御部ＣＯＮは、センサ１０４のホール素子１０４ｂが出力するパルス信号が第２のレベル（“Ｌｏｗ”レベル）となる第２時間（ｔｌ１）を測定した後、第１時間（ｔｈ）を測定し、再度、当該パルス信号が第２のレベル（“Ｌｏｗ”レベル）となる第２時間（ｔｌ２）を測定する。 Then, the control unit CON measures the second time (tl 1 ) when the pulse signal output from the Hall element 104b of the sensor 104 becomes the second level (“Low” level), and then the first time (th). Then, the second time (tl 2 ) when the pulse signal becomes the second level (“Low” level) is measured again.

　そして、制御部ＣＯＮは、測定した２つの当該第２時間（ｔｌ１）、（ｔｌ２）の平均値と第２の極性の磁極Ｇの幅に基づいて、モータ１０２の回転子１０２ａの角速度を算出するようになっている。 Then, the control unit CON determines the angular velocity of the rotor 102a of the motor 102 based on the average value of the two measured second times (tl 1 ) and (tl 2 ) and the width of the magnetic pole G having the second polarity. It comes to calculate.

　なお、第２の極性の磁極Ｇ２の幅は、既述のように固定された（一定の）既知の値であるので、この既知の幅の値を測定した２つの当該第２時間（ｔｌ１）、（ｔｌ２）の平均値で除算することで、モータ１０２の回転子１０２ａの角速度を算出することができる。 Since the width of the magnetic pole G2 having the second polarity is a fixed (fixed) known value as described above, the two second times (tl 1 ) when the value of the known width is measured. ), And dividing by the average value of (tl 2 ), the angular velocity of the rotor 102a of the motor 102 can be calculated.

　そして、制御部ＣＯＮは、測定した第１時間（ｔｈ）と算出した角速度に基づいて、当該第２時間が測定された第２の極性の磁極Ｇ２に隣接する第１の極性の磁極Ｇ１の幅を推定する。 Then, based on the measured first time (th) and the calculated angular velocity, the controller CON determines the width of the magnetic pole G1 having the first polarity adjacent to the magnetic pole G2 having the second polarity measured for the second time. Is estimated.

　なお、パルス（４）の幅に対応する測定した第１時間（ｔｈ）と算出した当該角速度とを乗算することで、当該第１の極性の磁極Ｇ１の幅が算出（推定）される。 The width of the magnetic pole G1 having the first polarity is calculated (estimated) by multiplying the measured first time (th) corresponding to the width of the pulse (4) by the calculated angular velocity.

　そして、制御部ＣＯＮは、モータ１０２の位相の検出時に、記憶部Ｍから、推定した第１の極性の磁極Ｇの幅に関連付けられたモータ１０２の位相を読み出す。 The control unit CON reads the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity from the storage unit M when detecting the phase of the motor 102.

　そして、制御部ＣＯＮは、推定した第１の極性の磁極Ｇの幅に関連付けられたモータ１０２の位相を特定することで、モータ１０２の位相を検出する。 The control unit CON detects the phase of the motor 102 by specifying the phase of the motor 102 associated with the estimated width of the magnetic pole G having the first polarity.

　　なお、図４の例では、最大位置決め回転角は、パルス（３）の幅、その後の“Ｌｏｗ”レベルの期間、及びパルス（４）の幅、その後の“Ｌｏｗ”レベルの期間となり、モータ１０２を３６０°回転する前に、モータ１０２の位相を特定することができる。 In the example of FIG. 4, the maximum positioning rotation angle is the width of the pulse (3), the subsequent “Low” level period, the width of the pulse (4), and the subsequent “Low” level period. Before rotating 360 °, the phase of the motor 102 can be determined.

　そして、図４に示すように、モータの回転角は内燃機関１０３のクランク角と対応しており、モータの位相を特定することで、内燃機関のステージ（各工程）を特定することができる。 As shown in FIG. 4, the rotation angle of the motor corresponds to the crank angle of the internal combustion engine 103, and the stage (each process) of the internal combustion engine can be specified by specifying the phase of the motor.

　なお、実施例２のその他の構成及び機能は、実施例１と同様である。 The other configurations and functions of the second embodiment are the same as those of the first embodiment.

　すなわち、本実施例３に係る駆動制御システム１０００の制御方法によれば、実施例１と同様に、モータ１０２の位相を特定する時間を短縮して、モータ制御の高速化を図ることができる。 That is, according to the control method of the drive control system 1000 according to the third embodiment, as in the first embodiment, it is possible to shorten the time for specifying the phase of the motor 102 and increase the speed of the motor control.

　以上のように、本発明の一態様に係る駆動制御システムは、モータ１０２と、モータの回転子の外周に回転方向に沿って設けられ、モータの回転方向に第１の極性（例えば、Ｎ極）の磁極と第２の極性（例えば、Ｓ極）の磁極とが交互に複数個配置されて構成された検出用磁石と、モータの固定子に回転子の外周と対向する位置に設けられ、検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベル（例えば、“Ｈｉｇｈ”レベル）のパルス信号を出力するとともに検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベル（例えば、“Ｌｏｗ”レベル）のパルス信号を出力するホール素子と、を含むセンサ１０４と、モータの動作を制御するドライバ回路Ｄと、センサのホール素子が出力するパルス信号に基づいて、モータの位相を検出するとともに、ドライバ回路を制御してモータを駆動する制御部ＣＯＮと、を備える。 As described above, the drive control system according to one embodiment of the present invention is provided along the rotation direction on the outer periphery of the motor 102 and the rotor of the motor, and has the first polarity (for example, N pole) in the rotation direction of the motor. ) Magnetic poles and second polarity (for example, S poles) magnetic poles alternately arranged, and a stator of the motor provided at a position facing the outer periphery of the rotor, When the magnetic flux of the first polarity magnet of the detection magnet is detected, a pulse signal of the first level (for example, “High” level) is output, and when the magnetic flux of the magnetic pole of the second polarity of the detection magnet is detected, the first polarity is output. A sensor 104 including a Hall element that outputs a pulse signal of level 2 (eg, “Low” level), a driver circuit D that controls the operation of the motor, and a pulse signal output by the Hall element of the sensor. ,motor It detects the phase, and a control unit CON for driving the motor by controlling the driver circuit.

　そして、モータの回転方向におけるセンサの複数の第１の極性の磁極の幅は、モータの回転方向に（順回転方向及び逆回転方向を含む方向）に異なって設定されており、モータの回転方向におけるセンサの複数の第２の極性の磁極の幅は、同じになるように設定されている。 The widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor (including the forward rotation direction and the reverse rotation direction). The widths of the plurality of second polarity magnetic poles of the sensor are set to be the same.

　このように、本発明の駆動制御システムでは、センサの複数の第１の極性の磁極の幅が異なって（不均一に）設定されており、複数の第２の極性の磁極の幅は、同じになるように設定されていることから、センサのホール素子が出力するパルス信号に基づいて、モータが３６０°回転する前に、モータの位相が特定されることとなる。 Thus, in the drive control system of the present invention, the widths of the plurality of first polarity magnetic poles of the sensor are set differently (non-uniformly), and the widths of the plurality of second polarity magnetic poles are the same. Therefore, based on the pulse signal output from the Hall element of the sensor, the phase of the motor is specified before the motor rotates 360 °.

　すなわち、本発明の駆動制御システムによれば、モータの位相を特定する時間を短縮して、モータ制御の高速化を図ることができる。 That is, according to the drive control system of the present invention, it is possible to shorten the time for specifying the phase of the motor and to increase the speed of the motor control.

　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

１０００　駆動制御システム
１００　駆動制御装置
Ｂ　バッテリ
１０２　モータ
１０３　エンジン（内燃機関）
１０４　センサ
ＣＯＮ　制御部
Ｍ　記憶部
Ｄ　ドライバ回路 1000 Drive control system 100 Drive control device B Battery 102 Motor 103 Engine (internal combustion engine)
104 Sensor CON Control unit M Storage unit D Driver circuit

Claims (17)

　モータと、
　前記モータの回転子の外周に回転方向に沿って設けられ、前記モータの回転方向に第１の極性の磁極と第２の極性の磁極とが交互に複数個配置されて構成された検出用磁石と、前記モータの固定子に設けられ、前記検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベルのパルス信号を出力するとともに前記検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベルのパルス信号を出力するホール素子と、を含むセンサと、
　前記モータの動作を制御するドライバ回路と、
　前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記モータの位相を検出するとともに、前記ドライバ回路を制御して前記モータを駆動する制御部と、を備え、　　
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に異なって設定されており、　
　前記モータの前記回転方向における前記センサの複数の前記第２の極性の磁極の幅は、同じになるように設定されている
　ことを特徴とする駆動制御システム。 A motor,
A magnet for detection provided on the outer periphery of the rotor of the motor along the rotation direction, wherein a plurality of magnetic poles having a first polarity and a second polarity are alternately arranged in the rotation direction of the motor. And when the magnetic flux of the first polarity magnet of the detection magnet is detected, a first level pulse signal is output and the second polarity magnetic pole of the detection magnet is provided. A Hall element that outputs a second level pulse signal upon detecting magnetic flux;
A driver circuit for controlling the operation of the motor;
A controller that detects the phase of the motor based on the pulse signal output by the Hall element of the sensor and controls the driver circuit to drive the motor;
The widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor,
The drive control system, wherein widths of the plurality of second polarity magnetic poles of the sensor in the rotation direction of the motor are set to be the same. 　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に１回転する順番に、大きくなるように異なって設定され若しくは小さくなるように異なって設定されており、
　前記モータの前記回転方向において連続する２つの前記第１の極性の磁極の幅の差が、前記モータの前記回転方向に１回転する範囲において、一定の大きさになるように設定されている
　ことを特徴とする請求項１に記載の駆動制御システム。 The widths of the plurality of magnetic poles of the first polarity of the sensor in the rotation direction of the motor are set differently to increase or decrease in order of one rotation in the rotation direction of the motor. Is set,
The difference between the widths of the two magnetic poles of the first polarity that are continuous in the rotation direction of the motor is set to be constant within a range of one rotation in the rotation direction of the motor. The drive control system according to claim 1. 　前記連続する２つの前記第１の極性の磁極の幅の前記差に対応する前記回転子の角度が３°、６°、又は、１２°である
　ことを特徴とする請求項２に記載の駆動制御システム。 The drive according to claim 2, wherein an angle of the rotor corresponding to the difference between the widths of the two consecutive magnetic poles of the first polarity is 3 °, 6 °, or 12 °. Control system. 　前記モータの前記回転方向における複数の前記第２の極性の磁極の幅は、前記連続する２つの前記第１の極性の磁極の幅の前記差よりも、大きい
　ことを特徴とする請求項３に記載の駆動制御システム。 The width of the plurality of magnetic poles of the second polarity in the rotation direction of the motor is larger than the difference between the widths of the two consecutive magnetic poles of the first polarity. The drive control system described. 　前記モータの前記回転方向における複数の前記第２の極性の磁極の幅は、前記連続する２つの前記第１の極性の磁極の幅の前記差の３倍である
　ことを特徴とする請求項４に記載の駆動制御システム。 The width of the plurality of magnetic poles of the second polarity in the rotation direction of the motor is three times the difference between the widths of the two consecutive magnetic poles of the first polarity. The drive control system described in 1. 　前記制御部は、
　前記パルス信号が前記第２のレベルとなる第２時間を測定し、測定した前記第２時間と前記第２の極性の磁極の幅に基づいて、前記モータの前記回転子の角速度を算出し、　
　前記第２時間を測定した後に、前記パルス信号が前記第１のレベルとなる第１時間を測定し、測定した前記第１時間と算出した前記角速度に基づいて、前記第２時間が測定された第２の極性の磁極に隣接する第１の極性の磁極の幅を推定し、推定した第１の極性の磁極の幅に関連付けられた前記モータの位相を特定することで、前記モータの位相を検出する
　ことを特徴とする請求項４に記載の駆動制御システム。 The controller is
Measuring the second time when the pulse signal is at the second level, and calculating the angular velocity of the rotor of the motor based on the measured second time and the width of the magnetic pole of the second polarity;
After measuring the second time, the first time when the pulse signal is at the first level is measured, and the second time is measured based on the measured first time and the calculated angular velocity. Estimating the width of the magnetic pole of the first polarity adjacent to the magnetic pole of the second polarity, and identifying the phase of the motor associated with the estimated width of the magnetic pole of the first polarity; The drive control system according to claim 4, wherein the drive control system is detected. 　前記制御部は、
　前記パルス信号が前記第２のレベルとなる第２時間を測定した後、前記第１時間を測定し、再度、前記パルス信号が前記第２のレベルとなる第２時間を測定し、測定した２つの前記第２時間の平均値と前記第２の極性の磁極の幅に基づいて、前記モータの前記回転子の角速度を算出する
　ことを特徴とする請求項６に記載の駆動制御システム。 The controller is
After measuring the second time when the pulse signal becomes the second level, measure the first time, and again measure the second time when the pulse signal becomes the second level, and measure 2 The drive control system according to claim 6, wherein an angular velocity of the rotor of the motor is calculated based on an average value of the two second times and a width of the magnetic pole having the second polarity. 　前記第１の極性の磁極の幅と前記モータの位相とを関連付けて記憶する記憶部Ｍをさらに備えることを特徴とする請求項６に記載の駆動制御システム。 The drive control system according to claim 6, further comprising a storage unit M that stores the width of the magnetic pole having the first polarity and the phase of the motor in association with each other. 　前記制御部は、前記モータの位相の検出時に、前記記憶部から、推定した前記第１の極性の磁極の幅に関連付けられた前記モータの位相を読み出す
　ことを特徴とする請求項８に記載の駆動制御システム。 The said control part reads the phase of the said motor linked | related with the estimated width | variety of the said 1st polarity magnetic pole from the said memory | storage part at the time of the detection of the phase of the said motor. Drive control system. 　前記モータは、前記回転子が内燃機関のクランク軸に接続されるとともに、前記内燃機関にトルクを付与するものであり、
　前記制御部は、前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記内燃機関のクランクの位相を検出する
　ことを特徴とする請求項９に記載の駆動制御システム。 The motor is configured such that the rotor is connected to a crankshaft of an internal combustion engine and torque is applied to the internal combustion engine.
The drive control system according to claim 9, wherein the control unit detects a phase of a crank of the internal combustion engine based on the pulse signal output from the Hall element of the sensor. 　前記制御部は、前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記モータが回転している方向を特定する
　ことを特徴とする請求項１に記載の駆動制御システム。 The drive control system according to claim 1, wherein the control unit specifies a direction in which the motor is rotating based on the pulse signal output from the Hall element of the sensor. 　前記ホール素子は、前記モータの前記回転子の外周に回転方向に沿って複数個設けられていることを特徴とする請求項１に記載の駆動制御システム。 2. The drive control system according to claim 1, wherein a plurality of the hall elements are provided along a rotation direction on an outer periphery of the rotor of the motor. 　前記駆動制御システムは、二輪車に積載され、前記モータは前記二輪車の内燃機関に接続され、前記制御部は、前記ドライバ回路により前記モータを駆動することにより、前記内燃機関を駆動する
　ことを特徴とする請求項１０に記載の駆動制御システム。 The drive control system is mounted on a two-wheeled vehicle, the motor is connected to an internal combustion engine of the two-wheeled vehicle, and the control unit drives the internal combustion engine by driving the motor by the driver circuit. The drive control system according to claim 10. 　前記モータの前記回転子における、最小の幅の第１の極性の磁極の位置は、内燃機関の上死点のクランク角に対応していることを特徴とする請求項１０に記載の駆動制御システム。 11. The drive control system according to claim 10, wherein the position of the magnetic pole of the first polarity with the minimum width in the rotor of the motor corresponds to the crank angle of the top dead center of the internal combustion engine. . 　前記ホール素子は、前記回転子の前記外周と対向する位置に設けられていることを特徴とする請求項１に記載の駆動制御システム。 The drive control system according to claim 1, wherein the hall element is provided at a position facing the outer periphery of the rotor. 　モータと、前記モータの回転子の外周に回転方向に沿って設けられ、前記モータの回転方向に第１の極性の磁極と第２の極性の磁極とが交互に複数個配置されて構成された検出用磁石と、前記モータの固定子に設けられ、前記検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベルのパルス信号を出力するとともに前記検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベルのパルス信号を出力するホール素子と、を含むセンサと、前記モータの動作を制御するドライバ回路と、制御部と、を備えた駆動制御システムの制御方法であって、
　前記制御部により、前記センサの前記ホール素子が出力する前記パルス信号に基づいて、前記モータの位相を検出するとともに、前記ドライバ回路を制御して前記モータを駆動すること、を備え、
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に異なって設定されており、　
　前記モータの前記回転方向における前記センサの複数の前記第２の極性の磁極の幅は、同じになるように設定されている
　ことを特徴とする駆動制御システムの制御方法。 The motor and the outer periphery of the rotor of the motor are provided along the rotation direction, and a plurality of first polarity magnetic poles and second polarity magnetic poles are alternately arranged in the rotation direction of the motor. When a magnetic flux of a first polarity magnet of the detection magnet is detected, a first level pulse signal is output and a second polarity of the detection magnet is provided on the detection magnet and the stator of the motor. A control method for a drive control system, comprising: a sensor including a Hall element that outputs a pulse signal of a second level when the magnetic flux of the magnetic pole of the motor is detected; a driver circuit that controls the operation of the motor; Because
The controller detects the phase of the motor based on the pulse signal output from the Hall element of the sensor, and controls the driver circuit to drive the motor,
The widths of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor are set differently in the rotation direction of the motor,
The drive control system control method, wherein widths of the plurality of second polarity magnetic poles of the sensor in the rotation direction of the motor are set to be the same. 　モータであって、
　回転子と、
　固定子と、を備え、
　センサの検出用磁石が、前記モータの前記回転子の外周に回転方向に沿って設けられ、前記モータの回転方向に第１の極性の磁極と第２の極性の磁極とが交互に複数個配置されて構成され、
　前記センサのホール素子が、前記モータの前記固定子に設けられ、
　前記ホール素子は、前記検出用磁石の第１の極性の磁石の磁束を検出すると第１のレベルのパルス信号を出力するとともに前記検出用磁石の第２の極性の磁極の磁束を検出すると第２のレベルのパルス信号を出力するものであり
　前記モータの前記回転方向における前記センサの複数の前記第１の極性の磁極の幅は、前記モータの前記回転方向に異なって設定されており、　
　前記モータの前記回転方向における前記センサの複数の前記第２の極性の磁極の幅は、同じになるように設定されている
　ことを特徴とするモータ。 A motor,
A rotor,
A stator, and
Sensor detection magnets are provided on the outer periphery of the rotor of the motor along the rotation direction, and a plurality of first polarity magnetic poles and second polarity magnetic poles are alternately arranged in the rotation direction of the motor. Is configured,
A hall element of the sensor is provided in the stator of the motor;
The Hall element outputs a first level pulse signal when detecting the magnetic flux of the first polarity magnet of the detection magnet, and detects the magnetic flux of the second polarity magnetic pole of the detection magnet. The width of the plurality of first polarity magnetic poles of the sensor in the rotation direction of the motor is set differently in the rotation direction of the motor,
A width of the plurality of magnetic poles of the second polarity of the sensor in the rotation direction of the motor is set to be the same.
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CN113030806A (en) * 2021-03-16 2021-06-25 北京华能新锐控制技术有限公司 Tool instrument for detecting magnetic pole arrangement of permanent magnet array
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Publication number Priority date Publication date Assignee Title
CN113030806A (en) * 2021-03-16 2021-06-25 北京华能新锐控制技术有限公司 Tool instrument for detecting magnetic pole arrangement of permanent magnet array
CN113775457A (en) * 2021-11-09 2021-12-10 金城集团有限公司 Ignition control method and fault diagnosis method for aviation piston engine

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