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WO2017083617A1 - Appareil d'actionnement commandé d'un ensemble de couplage sélectionnable ayant de multiples modes de fonctionnement - Google Patents

Appareil d'actionnement commandé d'un ensemble de couplage sélectionnable ayant de multiples modes de fonctionnement Download PDF

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Publication number
WO2017083617A1
WO2017083617A1 PCT/US2016/061488 US2016061488W WO2017083617A1 WO 2017083617 A1 WO2017083617 A1 WO 2017083617A1 US 2016061488 W US2016061488 W US 2016061488W WO 2017083617 A1 WO2017083617 A1 WO 2017083617A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
assembly
electrical power
excitation coil
microcontroller
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/US2016/061488
Other languages
English (en)
Inventor
Ryan W. Essenmacher
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.)
Means Industries Inc
Original Assignee
Means Industries Inc
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
Priority claimed from US14/940,226 external-priority patent/US9909631B2/en
Application filed by Means Industries Inc filed Critical Means Industries Inc
Publication of WO2017083617A1 publication Critical patent/WO2017083617A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
    • F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
    • F16D27/115—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae

Definitions

  • U.S. Patent No. 6,244,965 discloses a planar overrunning coupling for transfer of torque.
  • U.S. Patent No. 6,290,044 discloses a selectable one-way clutch assembly for use in an automatic transmission.
  • U.S. Patent No. 7,258,214 discloses an overrunning coupling assembly.
  • U.S. Patent No. 7,344,010 discloses an overrunning coupling assembly.
  • U.S. Patent No. 7,484,605 discloses an overrunning radial coupling assembly or clutch.
  • U.S. Patent No. 8,196,724 discloses a control module configured to actuate a displacement actuator of a 2 position SOWC via a spring returned solenoid to move a pin and a slide plate from a first position to a second position using a first voltage potential, and configured to hold the displacement actuator in the second position using a second voltage potential less than the first voltage potential.
  • magnetic field sensing element is used to describe a variety of electronic elements that can sense a magnetic field.
  • the magnetic field sensing elements can be, but are not limited to, Hall effect elements, magnetoresi stance elements, or magnetotransistors.
  • Hall effect elements for example, a planar Hall element, a vertical Hall element, and a circular vertical Hall (CVH) element.
  • Magnetic field sensors are used in a variety of applications, including, but not limited to, an angle sensor that senses an angle of a direction of a magnetic field, a current sensor that senses a magnetic field generated by a current carried by a current-carrying conductor, a magnetic switch that senses the proximity of a ferromagnetic object, a rotation detector that senses passing ferromagnetic articles, for example, magnetic domains of a ring magnet, and a magnetic field sensor that senses a magnetic field density of a magnetic field.
  • an angle sensor that senses an angle of a direction of a magnetic field
  • a current sensor that senses a magnetic field generated by a current carried by a current-carrying conductor
  • a magnetic switch that senses the proximity of a ferromagnetic object
  • a rotation detector that senses passing ferromagnetic articles, for example, magnetic domains of a ring magnet
  • a magnetic field sensor that senses a magnetic field density of a magnetic field.
  • Modern automotive vehicles employ an engine transmission system having gears of different sizes to transfer power produced by the vehicle's engine to the vehicle's wheels based on the speed at which the vehicle is traveling.
  • the engine transmission system typically includes a clutch mechanism which may engage and disengage these gears.
  • the clutch mechanism may be operated manually by the vehicle's driver, or automatically by the vehicle itself based on the speed at which the driver wishes to operate the vehicle.
  • U.S. Patent No. 8,324,890 discloses a transmission clutch position sensor which includes two Hall sensors located at opposite ends of a flux concentrator outside the casing of the transmission to sense a magnetic field generated by a magnet attached to the clutch piston. To reduce sensitivity to magnet-to-sensor gap tolerances, a ratio of the voltage of one Hall sensor to the sum of the voltages from both Hall sensors is used to correlate to the piston and, hence, clutch position.
  • Coupled should be interpreted to include clutches or brakes wherein one of the plates is drivably connected to a torque delivery element of a transmission and the other plate is drivably connected to another torque delivery element or is anchored and held stationary with respect to a transmission housing.
  • the terms “coupling”, “clutch” and “brake” may be used interchangeably.
  • An object of at least one embodiment of the present invention is to provide an apparatus for controllably actuating a selectable coupling assembly when a remote electronic control unit is unable to provide the proper command and power signals.
  • an apparatus for controllably actuating a selectable coupling assembly includes a bi-directionally movable, actuating shaft attachable to a movable element of the assembly to provide selective, small displacement element movement to linearly actuate the assembly.
  • An excitation coil is arranged to be magnetically coupled with the shaft and to controllably move the shaft between positions which correspond to different operating modes of the assembly.
  • the power switching and supply circuit may include a power transistor to alternately connect and disconnect the excitation coil from the received electrical power in response to a control signal from the microcontroller.
  • the controller may further include a storage circuit coupled to the power inlet terminal and operative to store the received electrical power and supply the stored electrical power to the excitation coil in response to a command signal from the microcontroller.
  • the sensor may include a magnetic sensing element.
  • the movable element may be a locking element which controls the operating mode of the assembly.
  • the apparatus may further include a voltage regulator coupled to the power inlet terminal to provide regulated voltage to the microcontroller and the magnetic field sensor.
  • a voltage regulator coupled to the power inlet terminal to provide regulated voltage to the microcontroller and the magnetic field sensor.
  • an apparatus for controlling the operating mode of an overrunning coupling assembly includes a bi-directionally movable, actuating shaft attachable to a movable element of the assembly to provide selective, small displacement element movement to linearly actuate the assembly.
  • An excitation coil is arranged to be magnetically coupled with the shaft and to controllably move the shaft between positions which correspond to different operating modes of the assembly.
  • the power switching and supply circuit may include a power transistor to alternately connect and disconnect the excitation coil from the received electrical power in response to a control signal from the microcontroller.
  • the electronic control unit may comprise a transmission electronic control unit.
  • the controller may further include a storage circuit coupled to the power inlet terminal and operative to store the received electrical power and supply the stored electrical power to the excitation coil in response to a command signal from the microcontroller.
  • the storage circuit may include a capacitor to store the received electrical power.
  • the apparatus may further include a magnetic field sensor to sense magnetic flux and produce a position feedback signal which is based on the position of the movable element.
  • a variable magnetic field may be generated in response to movement of the element when the assembly changes its operating mode.
  • the microcontroller may receive the position feedback signal from the magnetic field sensor.
  • FIGURE 5 is a view, partially broken away, of a second embodiment of an apparatus for controllably actuating a selectable coupling assembly wherein one of the positions of a selector plate is shown in phantom.
  • FIG. 1 there is illustrated a planar, controllable coupling assembly, generally indicated at 11.
  • the assembly 11 is generally of the type shown in published U.S. patent application 2014/0305761.
  • the assembly 11 includes a first coupling member, generally indicated at 10, a notch plate or member, generally indicated at 12, and an electromechanical apparatus, generally indicated at 15.
  • the coupling assembly 11 may be a ratcheting, one-way clutch assembly.
  • the second member 12 includes a second coupling face 16 in closed-spaced opposition with an outer coupling face 14 of a housing part 13 of the apparatus 15 when the members 10 and 12 are assembled and held together by a locking or snap ring 18. At least one of the members 10 and 12 is mounted for rotation about a common rotational axis.
  • the element or strut 26 is shown as being received within the pocket 22 in its retracted, uncoupling position in Figure 1.
  • the strut 26 is movable outwardly from the pocket 22 to an extended coupling position (phantom lines in Figure 1) characterized by abutting engagement of the strut 26 with a load-bearing shoulder of the notch plate 12 and the shoulder 24.
  • the housing part 13 and/or the plate 47 preferably has holes to allow oil to circulate within the housing part 13.
  • the at least one coil 33, the housing part 13, the tube 45 and the armature 35 comprise a low profile solenoid.
  • the locking element 26 may be a metal (such as aluminum) injection molded (i.e. MTM) strut.
  • the housing part 13 has at least one apertured attachment flange 49 to attach the apparatus 15 to the coupling member 10 (corresponding aperture not shown) of the coupling assembly 11.
  • controller 200 including a power switching and supply circuit 202 to supply DC electrical power to the coil 33 in response to command signal from the TECU during normal operation.
  • the power transistor 207 provides low side switching and is preferably an N channel
  • MOSFET including a diode between the drain and source of the transistor 207 to suppress over voltage switching transients and noise.
  • the MOSFET 207 is used as an electronic switch with control provided at its gate by the optoisolater 205.
  • an insulated gate, bipolar transistor (IGBT) may be used instead of the MOSFET 207.
  • the TECU regulates the power to drive the solenoid.
  • the controller 200 connects the solenoid to the TECU so that control of the solenoid is achieved.
  • the TECU decides whether to drive the solenoid and sets a digital output accordingly to drive the solenoid.
  • Existing TECU's have traditionally employed variable force solenoid valve control to manipulate the transmission's hydraulic control circuit to change clutch states.
  • Solenoid-based, SOWC actuation as provided herein repurposes the TECU's existing output in order to minimize cost and preserve a common TECU for both hydraulic and solenoid-based SOWC actuation schemes.
  • the controller 200 is provided.
  • the controller could be implemented or realized with discrete logic (i.e. Figure 2) or a microcontroller (i.e. Figure 3) depending on the system's requirements.
  • the circuitry of Figure 2 allows the TECU to control the solenoid requiring only a single TECU digital output for determining solenoid actuation.
  • the switching of the controller can be achieved such as a discrete solid state switch.
  • a second, more sophisticated embodiment of a controller is generally indicated at 200' and includes many of the components of the controller of Figure 2 and, consequently, have the same reference number but a single prime designation in Figure 3.
  • the more sophisticated implementation of Figure 3 can be programmed to perform a profiled apply in order to reduce the noise, vibration and harshness (NVH) signature of turning on the solenoid.
  • An energy storage circuit in Figure 3 can provide a voltage boost to turn on solenoids that would otherwise result in an unacceptable, instantaneous power draw on the vehicle's 12VDC power system.
  • the energy storage circuit also provides the ability to actuate the solenoid in the event of a failure on the vehicle's 12VDC power system.
  • Either embodiment (i.e. Figure 2 or Figure 3) of the controller can act as an intermediary between the transmission control electronic unit (TECU) and the solenoid.
  • TECU transmission control electronic unit
  • these designs could be used in conjunction with existing TECUs to operate solenoids that require more actuation power than can be supplied by current generation TECUs.
  • this control circuitry could be integrated directly into the TECU.
  • the controller 200' also includes a microcontroller including control logic which may alternatively be found within other circuitry.
  • the controller 200' typically receives command signals at input terminal 203 from the remote electronic control unit (TECU) over or through a vehicle- based bus (i.e. CAN/LEST).
  • Figure 3 also shows an energy surge circuit 210' to controllably store electrical power and apply the stored electrical power to the solenoid and a low side switch (i.e. SW module 207') based on a position command signal as determined by the microcontroller.
  • the microcontroller generates the control signals to the module 207' while the TECU remains in a supervisory role.
  • the microcontroller could be replaced with an FPGA or an extensive array of discrete modules.
  • the controller 200' can be designed with or without low level diagnostics reporting to the TECU and then could receive actuation commands via digital outputs from the TECU and send high level status (i.e. sensor status or controller status) information back to the TECU via digital outputs on the microcontroller.
  • the microcontroller i.e. MCU
  • the MCU typically receives command signals from the TECU through a vehicle CAN bus.
  • the MCU also receives various monitor, control and feedback signals to monitor different voltages within the controller 200' to properly control the switch module 207'.
  • the MCU receives one or more feedback signals from the Hall effect sensor(s) 100 and a current feedback signal based on solenoid current.
  • the MCU controls the operation of the energy storage circuit 210' as well as the switching module 207'.
  • the switching module 207' may incorporate the snubber circuit.
  • the energy storage circuit 210' includes at least one capacitor
  • the resister 224' limits in-rush current to the capacitor 220' and the solenoid during actuation. If a power transistor is used in place of the diode 222', the microcontroller can turn off the transistor to prevent back discharging. The diode 222' prevents the capacitor 220' from discharging back onto the vehicle 12 volt DC bus.
  • the computer-readable storage media may be implemented using any of a number of known memory devices such as PROMs (programmable read-only memory), EPROMs (electrically PROM), EEPROMs (electrically erasable PROM), flash memory, or any other electric, magnetic, optical, or combination memory devices capable of storing data, some of which represent executable instructions, used by CPU in controlling the transmission or vehicle into which the transmission is mounted.
  • PROMs programmable read-only memory
  • EPROMs electrically PROM
  • EEPROMs electrically erasable PROM
  • flash memory or any other electric, magnetic, optical, or combination memory devices capable of storing data, some of which represent executable instructions, used by CPU in controlling the transmission or vehicle into which the transmission is mounted.
  • the computer-readable storage media may also include floppy disks, CD-ROMs, hard disks, and the like.
  • the CPU communicates with various sensors, switches and/or actuators directly or indirectly via an input/output (I/O) and actuators directly or indirectly via an input/output (I/O) interface or vehicle bus (i.e., CAN, LIN, etc.).
  • the interface may be implemented as a single integrated interface that provides various raw data or signal conditioning, processing, and/or conversion, short-circuit protection, and the like.
  • one or more dedicated hardware or firmware chips may be used to condition and process particular signals before being supplied to CPU.
  • Some controller architectures do not contain an MMU. If no MMU is employed, the CPU manages data and connects directly to ROM, RAM, and KAM coupled to the MMU or CPU depending upon the particular application.
  • the MCU of the controller 200' typically includes the control logic to control the SW module 202'.
  • the control logic may be implemented in hardware, software, or a combination of hardware and software.
  • the circuit of Figure 4 comprises power circuitry for powering the solenoid and the
  • one or more memory devices within the transmission ECU and/or the controller 200' may store a plurality of activation schemes for the locking member or element 26 and may represent any one or more of a number of known processing strategies such as event-driven, interrupt-driven, multi-tasking, multi-threading, and the like. As such, various steps or functions may be performed in sequence, in a modified sequence, in parallel, or in some cases omitted. Likewise, the order of operation or processing is not necessarily required to achieve the objects, features, and advantages of the invention, but is provided for ease of illustration and description.
  • an apparatus or system 80' controllably moves a control element or plate 26'.
  • the selector plate 26' has a plurality of spaced apertures 28' to allow struts to pivot in their pockets.
  • the plate 26' is electromechanically driven by the apparatus
  • the MCU 80' which includes a linear actuator 82' such as a solenoid 88' having a shaft or armature 86' and via an actuator pin 38'.
  • the MCU outputs drive commands to the switching module 207' based on outputs from Hall effect sensor(s) 98', current feedback from the module 207' and decoded commands from the transmission ECU.
  • the MCU controls the solenoid 88' through the module 207' of the controller 200' so that the position of the control element or plate 26' is changed.
  • the transmission ECU outputs drive commands to the controller 200 or 200' which controls the solenoid 88' and, through the pin 38', the selector plate or element 26'.
  • the TECU and the controller 200' are connected via a vehicle bus such as a local interconnect network (LEST or CAN) line or bus capable of two-way communications.
  • LEST is one of many possible in-vehicle local area network (LAN) communications protocols.
  • a battery voltage power line and a ground line may be provided to the controller 200 or 200'.
  • the controller 200' typically includes a transceiver interface within the MCU, a microprocessor and its control logic within the MCU, the SW module 207', and an electrical power source (provided by the energy storage circuit 210').
  • the controller 200 or 200' may be integrated or physically coupled with the solenoid in the clutch or coupling housing, while the TECU is provided some distance away from the clutch housing.
  • the Hall effect sensor(s) 100 are typically provided near the strut 26 and the sensors
  • the TECU and the controller 200' may perform data communications regularly through the LEST or CAN bus. In such data communications, the controller 200' may transmit state data indicating the state of the solenoid to the TECU.
  • the state data may include present linear position of the shaft of the solenoid.
  • the logic circuit of the MCU of the controller 200' receives a drive command from the TECU through its transceiver, it transmits a drive command or signal to the SW module 207' to energize the solenoid to move the shaft to a desired target stop position.
  • the logic circuit of the MCU transmits a stop command to the module 207'.
  • the controller 200' may transmit to the TECU the present position of the solenoid detected based on the signals of the sensor(s) 100 or 98' while the shaft is in motion.
  • the controller 200' may also transmit to the TECU stop data indicating the stop of the solenoid when the solenoid has stopped at its target stop position.
  • the TECU typically checks if the data received from the controller 200' includes the stop data therein. If the stop data is included, the TECU determines that the solenoid has stopped at its target stop position.
  • the system or apparatus may do the following: a. actuate a multi-position, selectable, mechanical diode, selector plate or strut and provide mechanical holding force via a spring or other transmission interface; b. utilizes one or more proximity sensors to determine actual position of the selector plate or strut; c. communicate with customer's transmission electronic control unit via a CAN or other vehicle bus to receive actuation commands and send back selector plate or strut position status and system diagnostic data; and d. provide an electronic failsafe that will return the clutch or coupling assembly to a safe position or state in the event of vehicle power loss or loss of communications with the transmission electronic control unit.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

L'invention concerne un appareil permettant d'actionner de manière commandée un ensemble de couplage sélectionnable. L'appareil comprend un arbre d'actionnement, mobile dans deux directions, pouvant être fixé à un élément mobile de l'ensemble pour permettre un mouvement d'élément sélectif à faible déplacement pour actionner l'ensemble de manière linéaire. Une bobine d'excitation est agencée afin d'être couplée magnétiquement à l'arbre et de déplacer de manière commandée l'arbre entre des positions qui correspondent à différents modes de fonctionnement de l'ensemble. Un dispositif de commande comprend une borne d'entrée d'alimentation conçue pour recevoir de l'énergie électrique d'une source de courant continu d'un véhicule, une borne d'entrée d'instruction conçue pour recevoir un signal d'instruction d'une unité de commande électronique et un circuit de fourniture et de commutation d'alimentation couplé à la bobine pour commuter et fournir l'énergie électrique reçue à la bobine sur la base du signal d'instruction. L'arbre déplace l'élément et permet à l'ensemble de modifier son mode de fonctionnement lorsque l'énergie électrique excite la bobine.
PCT/US2016/061488 2015-11-13 2016-11-11 Appareil d'actionnement commandé d'un ensemble de couplage sélectionnable ayant de multiples modes de fonctionnement Ceased WO2017083617A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/940,226 2015-11-13
US14/940,226 US9909631B2 (en) 2014-11-07 2015-11-13 Apparatus for controllably actuating a selectable coupling assembly having multiple operating modes

Publications (1)

Publication Number Publication Date
WO2017083617A1 true WO2017083617A1 (fr) 2017-05-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2623159A (en) * 2022-08-05 2024-04-10 Borealis Tech Ltd Clutch actuator assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043892A (en) * 1987-05-29 1991-08-27 J. I. Case Company Electronic control system for powershift transmission with compensation for magnetic coupling
US6307376B1 (en) * 1998-12-23 2001-10-23 Eaton Corporation Fault detection system and method for solenoid controlled actuators of a transmission system
US20090255773A1 (en) * 2006-10-26 2009-10-15 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Actuator arrangement for a motor vehicle clutch
US20110068775A1 (en) * 2009-09-18 2011-03-24 Delphi Technologies, Inc. Clutch Position Sensor for Vehicle Transmission
US20120231913A1 (en) * 2008-02-04 2012-09-13 GM Global Technology Operations LLC Method and apparatus for controlling a selectable one-way clutch in an electro-mechanical transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043892A (en) * 1987-05-29 1991-08-27 J. I. Case Company Electronic control system for powershift transmission with compensation for magnetic coupling
US6307376B1 (en) * 1998-12-23 2001-10-23 Eaton Corporation Fault detection system and method for solenoid controlled actuators of a transmission system
US20090255773A1 (en) * 2006-10-26 2009-10-15 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Actuator arrangement for a motor vehicle clutch
US20120231913A1 (en) * 2008-02-04 2012-09-13 GM Global Technology Operations LLC Method and apparatus for controlling a selectable one-way clutch in an electro-mechanical transmission
US20110068775A1 (en) * 2009-09-18 2011-03-24 Delphi Technologies, Inc. Clutch Position Sensor for Vehicle Transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2623159A (en) * 2022-08-05 2024-04-10 Borealis Tech Ltd Clutch actuator assembly
GB2623159B (en) * 2022-08-05 2024-11-20 Borealis Tech Ltd Clutch actuator assembly

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