[go: up one dir, main page]

WO2020066328A1 - Capteur de charge et frein électrique - Google Patents

Capteur de charge et frein électrique Download PDF

Info

Publication number
WO2020066328A1
WO2020066328A1 PCT/JP2019/031317 JP2019031317W WO2020066328A1 WO 2020066328 A1 WO2020066328 A1 WO 2020066328A1 JP 2019031317 W JP2019031317 W JP 2019031317W WO 2020066328 A1 WO2020066328 A1 WO 2020066328A1
Authority
WO
WIPO (PCT)
Prior art keywords
strain
pressure receiving
load
load sensor
sensor
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/JP2019/031317
Other languages
English (en)
Japanese (ja)
Inventor
金丸　昌敏
木下　康
風間　敦
隆史 松村
健悟 鈴木
大介 寺田
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.)
Hitachi Astemo Ltd
Original Assignee
Hitachi Automotive Systems 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 Hitachi Automotive Systems Ltd filed Critical Hitachi Automotive Systems Ltd
Publication of WO2020066328A1 publication Critical patent/WO2020066328A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges

Definitions

  • the present invention relates to a load sensor and an electric brake using the load sensor.
  • Patent Document 1 discloses a force gauge having a stress cylindrical portion, wherein a strain gauge is provided on the stress cylindrical portion at a position related to a virtual neutral cylindrical surface of the stress cylindrical portion. A total is disclosed.
  • Patent Document 1 cannot accurately evaluate an eccentric load.
  • a load sensor measures a three-dimensionally shaped strain body, at least two opposed pressure receiving projections protruding in the pressure receiving direction from the strain body, and measures stress applied to each of the pressure receiving projections. And a strain sensor.
  • An electric brake according to a second aspect of the present invention includes the above-described load sensor.
  • the eccentric load can be accurately evaluated.
  • FIG. 3A is a plan view of the load sensor 9, and FIG. 3B is a cross-sectional view of FIG.
  • FIG. 3 is a diagram illustrating a situation where an eccentric load is applied to the load sensor 9 Strain-load diagram corresponding to FIG.
  • External view of load sensor 9B according to the third embodiment Sectional view of load sensor 9B Sectional view of load sensor 9B in Modification 2 of the third embodiment.
  • FIG. 1 is a sectional view showing a configuration of the load sensor 9 and the electric brake 1 according to the present invention.
  • the electric brake 1 includes a caliper housing 2, an electric motor 3, a reduction gear 4, a lead screw 5, a nut 6, a piston 7, a brake pad 8, and a load sensor 9.
  • the electric brake 1 applies a braking force to the disk 10 by pressing the brake pad 8 against the disk 10 using the electric motor 3 as a drive source.
  • the electric motor 3 is driven by a current signal or a voltage signal from an external controller, and rotates the motor shaft. The rotation of the motor shaft is reduced by the reduction gear 4 to a large rotational force, which is transmitted to the lead screw 5.
  • the lead screw 5 forms a linear motion mechanism together with the nut 6, and the rotation of the lead screw 5 is converted into a translational force in the axial direction.
  • the rotation of the nut 6 is restricted by a key groove (not shown) in the caliper housing 2 and the movement in the axial direction is also restricted. Therefore, the translational force in the axial direction acts on the lead screw 5, and the lead screw 5 itself translates in the axial direction while rotating.
  • the piston 7 moves in the direction of the disk 10 under the translational force of the lead screw 5.
  • the piston 7 pushes the brake pad 8 on the right side of the figure toward the disk 10.
  • the caliper housing 2 moves rightward in the figure due to the reaction force.
  • the movement of the caliper housing 2 causes the brake pad 8 on the left side of the figure to be pressed against the disk 10.
  • the disk 10 receives a braking force by being sandwiched between the left and right brake pads 8.
  • the load sensor 9 comes into contact with the nut 6, receives a reaction force applied to the nut 6 on one surface, and contacts the inner wall of the caliper housing 2 on the other surface.
  • the load sensor 9 is deformed by receiving a load from the nut 6 and the inner wall of the caliper housing 2, and outputs a voltage signal corresponding to the load to the outside. That is, the load sensor 9 receives a load from the left and right directions shown in FIG.
  • the load sensor 9 includes a strain body 91 having a three-dimensional shape, a pressure receiving protrusion 92, a strain sensor 93, a relay board 94, a wiring 95, and a bonding wire 97.
  • the pressure receiving protrusion 92 includes a first pressure receiving protrusion 92a and a second pressure receiving protrusion 92b
  • the distortion sensor 93 includes a first distortion sensor 93a and a second distortion sensor 93b.
  • the first pressure receiving protrusion 92a and the second pressure receiving protrusion 92b are the same hardware, and are arranged at different positions.
  • the first strain sensor 93a and the second strain sensor 93b are the same hardware, and are arranged at different positions.
  • the upper surface of the flexure element 91 in the figure is referred to as a flexure element upper surface 99a, and the lower surface of the flexure element 91 is referred to as a flexure element bottom surface 99b.
  • three orthogonal axes X, Y, and Z are defined as shown in FIG.
  • the posture of the load sensor 9 differs depending on the drawing due to the drawing convenience, but three axes are illustrated to clarify the mutual relationship between the drawings.
  • the defined Y axis is parallel to the axis of the lead screw 5 in FIG.
  • the defined X axis is perpendicular to the Y axis, and is a direction in which the first pressure receiving projection 92a and the second pressure receiving projection 92b are arranged.
  • the defined Z axis is orthogonal to the X axis and the Y axis.
  • the strain body 91 has a ring-like shape in which a hole through which the lead screw 5 penetrates is provided at the center.
  • the outer shape of the strain body 91 is a circle that fits inside the piston 7. However, the outer shape of the strain body 91 may be not circular as long as it conforms to the design of the electric brake 1.
  • the outer shape of the flexure element 91 may be, for example, rectangular or elliptical.
  • a key groove 98 is formed in the strain body 91, and the load sensor 9 is fixed in the rotation direction by a key (not shown).
  • a pressure receiving projection 92 is provided above the strain-generating body 91 at a position one step higher than the strain-generating body upper surface 99a.
  • the pressure receiving projection 92 contacts the nut 6 as described later.
  • the load sensor 9 may be rotated by 180 degrees so that the pressure receiving protrusion 92 is in contact with the inner wall of the caliper housing 2 and incorporated into the electric brake 1.
  • the height of the first pressure receiving projection 92a and the second pressure receiving projection 92b constituting the pressure receiving projection 92 are equal. More specifically, the distance L1 from the bottom surface 99b of the flexure element to the tip of the first pressure receiving projection 92a is equal to the distance L2 from the bottom surface 99b of the flexure element to the tip of the second pressure receiving projection 92b.
  • the surface where the load sensor 9 is in contact with the nut 6 and the inner wall of the caliper housing 2, that is, the upper surface of the first pressure receiving protrusion 92a, the upper surface of the second pressure receiving protrusion 92b, and the strain generating element bottom surface 99b are processed smoothly. Since the upper surface 99a of the strain body does not contact the nut 6, no special processing is required. However, “smoothness” here is a surface roughness determined in consideration of manufacturing cost, required accuracy, and the like.
  • a cutout surface 96 is provided on the outer peripheral side surface of the strain body 91 and beside the pressure receiving protrusion 92.
  • a strain sensor 93 and a relay board 94 are arranged on the cutout surface 96, and both are electrically connected by a bonding wire 97. Electrical exchange with the outside is performed via the wiring 95.
  • the strain sensor 93 is arranged at a position in contact with a region where the pressure receiving projection 92 is projected in the pressure receiving direction, that is, in the Y-axis direction.
  • the cutout surface 96 is parallel to the Y axis, and is orthogonal to the flexure element upper surface 99a and the flexure element bottom surface 99b.
  • the area is designed so as not to exceed the yield limit of the material under the maximum load. Since the strain element 91 is used under a high load, it is made of a high-strength steel material. Further, the pressure receiving projection 92 may be subjected to a surface treatment or the like in order to improve the proof stress.
  • the shape of the pressure receiving projection 92 is not limited to the shape shown in FIGS. 2 and 3 and may be a square, a rectangle, a circle, an ellipse, or the like.
  • the strain sensor 93 is, for example, a strain IC.
  • the distortion IC is formed by forming a piezoresistor for detecting distortion in the center of the upper surface of a silicon chip, and a Wheatstone bridge, an amplifier circuit, a temperature assurance circuit, and the like around the piezoresistor by a semiconductor process.
  • the strain sensor 93 uses the piezoresistive effect to capture the strain generated in the strain sensor 93 as a resistance change.
  • the first strain sensor 93a and the second strain sensor 93b are mounted at the center of the cutout surface 96 of the strain body 91, and detect a strain component in a direction parallel to the cutout surface and a strain component in a direction orthogonal to the cutout surface. . Further, the distortion sensor 93 generates and outputs a voltage signal corresponding to the magnitude of the difference between the two distortion components.
  • the strain sensor 93 may be constituted by a strain gauge or the like.
  • the relay board 94 is mainly made of, for example, a glass epoxy board. An electrode pad is formed on the relay board 94, and wiring is performed between the electrode and the strain sensor 93 by wire bonding using the pad, and a signal is extracted from the strain sensor 93.
  • the relay board 94 is provided with electrodes for extracting signals to the outside. A wiring 95 which is a covered cable is connected to this electrode by soldering, and a signal is output to an external device by connecting to a connector (not shown) provided at the end of the wiring 95.
  • the location of the relay board 94 need not be the cutout surface 96 of the strain body 91.
  • the relay board 94 may be arranged in the caliper housing 2 and the wiring extending from the strain sensor 93 may be connected to the relay board 94 provided in the caliper housing 2.
  • a semiconductor strain sensor to the strain sensor, it is possible to measure even a small stress. It is also possible to arrange a processing circuit near the semiconductor strain sensor. Further, at least two semiconductor strain sensors are formed and their stress values are averaged to cope with an uneven load.
  • FIG. 4 is a diagram illustrating a relative posture between the nut 6 and the strain body 91.
  • 4A is a diagram in which both face each other
  • FIG. 4B is a diagram in which the nut 6 is rotating so as to face a pitch direction, that is, slightly upward
  • FIG. 4C is a diagram in which the nut 6 is in a yaw direction. It is a figure which is rotating so as to face a near side. The illustration is omitted because there is no change even if the nut 6 rotates in the roll direction.
  • the first pressure receiving projections 92a and the second pressure receiving projections 92b are arranged in the vertical direction in the drawing.
  • the state in which the nut 6 faces in the pitch direction shown in FIG. 4B is also referred to as “the state in which the nut 6 rotates in parallel with the direction in which the pressure receiving projections 92 are arranged” in the present embodiment.
  • the state in which the nut 6 faces in the yaw direction shown in FIG. 4C is also referred to as “the state in which the nut 6 rotates so as to be perpendicular to the direction in which the pressure receiving projections 92 are arranged” in the present embodiment.
  • FIG. 5 is a diagram illustrating a situation where an eccentric load is applied to the load sensor 9.
  • N indicates a load applied to the nut 6
  • an arrow indicates a load application direction.
  • FIG. 5A is a diagram showing a state immediately before the nut 6 comes into contact with the pressure receiving protrusion 92a, in which no load is applied to the strain body 91 yet.
  • FIG. 5B is a diagram illustrating a state where a load is applied only to the pressure receiving protrusion 92a.
  • FIG. 5C is a diagram illustrating a state in which a load is applied to both the pressure receiving protrusions 92 of the strain body 91.
  • FIG. 6 is a strain-load diagram corresponding to FIG.
  • the horizontal axis indicates the load N and the vertical axis indicates the strain amount ⁇ .
  • white circles indicate the amounts of distortion of the first distortion sensor 93a and the second distortion sensor 93b, and black circles indicate the average value of both.
  • the ranges of P and Q shown in FIG. 5 are described for convenience of explanation.
  • the first pressure receiving projection 92a and the second pressure receiving projection 92b are not in contact with the nut 6, so that the distortion amounts of both the first pressure receiving projection 92a and the second pressure receiving projection 92b are zero. .
  • the load can be accurately measured using the strain sensor 93 installed on the cutout surface 96 on the side of the pressure receiving projection 92, and the two strains can be measured.
  • accurate measurement can be performed from a low load region.
  • the calculation of the average value of the strain amount is performed by a device external to the load sensor 9 that reads the strain amount from each relay board 94 via the wiring 95.
  • the strain sensor formed on the cutout surface of the strain body 91 cannot measure the strain accurately.
  • the load sensor 9 in the present embodiment first comes into contact with one of the two pressure receiving projections 92 even when an eccentric load is applied.
  • it has a cutout surface immediately beside the pressure receiving protrusion 92 and parallel to the pressure receiving direction, in other words, a cutout surface perpendicular to the pressure receiving surface, and the strain sensor 93 is installed on the cutout surface. Can be measured to obtain load information.
  • the load sensor 9 has a three-dimensionally shaped strain generating body 91, at least two opposing pressure receiving projections 92 protruding in the pressure receiving direction, that is, the Y direction from the strain generating body 91, and a stress received by each pressure receiving projection 92. And a strain sensor 93 for measuring the Therefore, as shown in FIG. 6, by calculating the average value of the outputs of the respective strain sensors 93, the load can be accurately evaluated even when an eccentric load exists.
  • Each of the plurality of strain sensors 93 is disposed at a position on the outer peripheral portion of the strain body 91, in contact with a region where the pressure receiving projection 92 is projected in the pressure receiving direction, that is, in the Y-axis direction. Therefore, the strain sensor 93 can detect the load received by the pressure receiving protrusion 92 with high accuracy.
  • the electric brake 1 includes the load sensor 9 described above. Therefore, even if the applied load N is an uneven load, the measurement can be accurately performed, and the braking force control of the electric brake 1 can be set finely. Further, by incorporating the electric brake 1 into a vehicle, it is possible to contribute to improving the riding comfort of the vehicle.
  • FIG. 7 is a view showing a variation of the pressure receiving protrusion 92 formed on the strain body 91.
  • the pressure receiving projection 92 is provided on the nut 6 side.
  • the pressure receiving protrusions 92 may be provided on the opposite side of the nut 6 as shown in FIG. 7A, that is, on the side of the caliper housing 2, or may be provided on both sides as shown in FIG. Is also good.
  • the distance L3 between the first pressure receiving protrusion 92a and the opposite surface is equal to the distance L4 between the second pressure receiving protrusion 92b and the opposite surface.
  • the distance L5 between the surfaces of the first pressure receiving projections 92a is equal to the distance L6 between the surfaces of the second pressure receiving projections 92b.
  • the two first pressure receiving projections 92a are arranged at positions having the same X coordinate so as to receive the load vertically.
  • the two second pressure receiving protrusions 92b are arranged at the same X coordinate position so as to receive the load vertically.
  • FIG. 8 is an enlarged cross-sectional view of the cutout surface 96 and the pressure receiving projection 92 formed on the strain body 91 shown in FIG.
  • the cross-sectional shape of the pressure receiving protrusion 92 is a rectangle with corners as shown in FIG.
  • the cross-sectional shape of the pressure receiving projection 92 may be a substantially rectangular shape having a chamfered portion 81 and having no corners as shown in FIG. Due to the chamfering, for example, when the nut 6 is inclined and comes into contact as shown in FIG. 5, the possibility that the corner of the pressure receiving projection 92 bites into the nut 6 is reduced.
  • the cross section of the pressure receiving projection 92 may be formed in a hemispherical cross section. Although each pressure receiving projection is shown in cross section in FIG. 8, a similar shape is preferable in the depth direction.
  • the pressure receiving projection 92 is chamfered or has a curved shape, the contact with the inclined nut 6 becomes a point contact, and the load can be captured with a quick response.
  • the pressure receiving projection 92 may receive three or more pressure receiving projections. In that case, the same number of strain sensors 93 as the pressure receiving protrusions 92 are provided, and the average of the outputs of the plurality of strain sensors 93 is evaluated.
  • the load sensor 9 may further include an output unit that averages outputs of the plurality of strain sensors 93 provided and outputs the result to the outside of the load sensor 9.
  • FIG. 9 is a diagram illustrating the output unit 300.
  • the output unit 300 is, for example, an IC chip, and averages the outputs of the respective strain sensors 93 input from the two relay boards 94. According to this modification, since the output unit 300 that outputs the average value of the outputs of the plurality of strain sensors 93 to the outside is provided, the device that uses the output of the load sensor 9 does not perform averaging. Since the output can be used as it is and can be used in the same manner as the conventional product, replacement is easy.
  • the cutout surface 96 is parallel to the Y axis, and is orthogonal to the strain-generating body upper surface 99a and the strain-generating body bottom surface 99b.
  • notch surface 96 need not be parallel to the Y axis.
  • the output of the strain sensor 93 may be multiplied by a correction coefficient in accordance with the angle between the cutout surface 96 and the strain-generating body upper surface 99a.
  • FIG. 10 is an external view of the load sensor 9A according to the second embodiment.
  • the flexure element 91 in the above-described embodiment corresponds to the first flexure element 910 and the second flexure element 911 in the load sensor 9A.
  • Other configurations are similar to those of the above-described embodiment. More specifically, a hole through which the lead screw 5 shown in FIG. 1 penetrates is formed in the center at the center in a state where the first strain body 910 and the second strain body 911 are put together.
  • the outer shape of the load sensor 9A is a circle that fits inside the piston 7.
  • key grooves are formed in both the first strain body 910 and the second strain body 911, and the load sensor 9A is fixed in the rotation direction by the key.
  • the following operation and effect can be obtained. (4) Since the first strain body 910 and the second strain body 911 can be separated from each other, the replacement can be performed when the first strain body 910 or the second strain body 911 fails. In addition, since the first strain body 910 and the second strain body 911 have the same shape, manufacturing becomes easy.
  • the flexure element is divided into two parts, but the flexure element may be divided into three or more parts.
  • FIG. 11 is an external view of the load sensor 9B according to the third embodiment. However, in FIG. 11, hidden lines are also indicated by broken lines in order to better represent the configuration.
  • the load sensor 9B includes two strain bodies 912 having the same shape and a holding jig 99.
  • the two strain bodies 912 are installed so as to face each other, and a holding jig 99 is formed around the two strain bodies 912 to hold the two strain bodies 912.
  • the strain sensor 93 is disposed inside the holding jig 99 as described later.
  • the flexure element 912 has a columnar shape with a constant radius, and a pressure receiving projection 92 is formed at the tip. However, the diameter of the pressure receiving projection 92 may be different from that of the strain body 912.
  • FIG. 12 is a sectional view of the load sensor 9B.
  • the dashed line at the right end of FIG. 12 is the center line of the load sensor 9B.
  • a notch surface 96 is formed in the strain body 912
  • a strain sensor 93 is provided in the notch surface 96
  • a pressure receiving protrusion 92 d is formed on the top of the strain body 912.
  • the flexure element 912 is supported by a holding jig 99, and the space between the flexure element 912 and the holding jig 99 is fixed by the bonding layer 80.
  • the strain body 912 and the pressure receiving protrusion 92d have a larger dimension in the Y direction than the holding jig 99.
  • the holding jig 99 does not receive the load because the load is received by the pressure receiving protrusion 92d and the strain generating element 912. Therefore, the holding jig 99 does not need to have great rigidity, and not only a metal material but also a resin material can be applied.
  • the strain generating element 912 and the pressure receiving protrusion 92d may be made of the same material as long as the material can withstand the applied load.
  • An adhesive can be applied to the bonding layer 80. However, when a metal material is applied to the holding jig 99, low-melting-point metal bonding such as solder can be applied.
  • At least two strain bodies 912 are provided in the load sensor 9B.
  • the load sensor includes a pressure-receiving protrusion 92d at an end of the strain-generating body 912 in the pressure-receiving direction, and a holding jig 99 that holds each of the strain-generating bodies 912. Therefore, the configuration can be simplified. Further, since resin can be used for a part of the load sensor 9B, the manufacturing cost can be reduced and the weight can be reduced.
  • Each of the plurality of strain sensors 93 is arranged in the outer peripheral portion of the strain body 91 and inside a region where the pressure receiving projection is projected in the pressure receiving direction. Therefore, stress can be measured accurately and with a short response time.
  • the shape of the flexure element 912 is a cylinder
  • the shape of the flexure element 912 is not limited to a cylinder, and a square, rectangle, triangle, or the like can be applied. .
  • FIG. 13 is a cross-sectional view of the load sensor 9B according to the present modification. As shown in FIG. 12, a curved surface shape can be applied to the pressure receiving protrusion 92f on the upper part of the strain body 912.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

L'invention concerne un capteur de charge qui peut évaluer avec précision une charge déséquilibrée. Ce capteur de charge est pourvu d'un corps déformable de forme tridimensionnelle, d'au moins deux saillies de réception de pression faisant face l'une à l'autre faisant saillie davantage dans une direction de réception de pression que le corps déformable, et de capteurs de contrainte mesurant chacun une contrainte à laquelle une saillie de réception de pression correspondante est soumise.
PCT/JP2019/031317 2018-09-25 2019-08-08 Capteur de charge et frein électrique Ceased WO2020066328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018179485A JP2020051817A (ja) 2018-09-25 2018-09-25 荷重センサ、電動ブレーキ
JP2018-179485 2018-09-25

Publications (1)

Publication Number Publication Date
WO2020066328A1 true WO2020066328A1 (fr) 2020-04-02

Family

ID=69950450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/031317 Ceased WO2020066328A1 (fr) 2018-09-25 2019-08-08 Capteur de charge et frein électrique

Country Status (2)

Country Link
JP (1) JP2020051817A (fr)
WO (1) WO2020066328A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023122191A1 (de) * 2023-08-18 2025-02-20 Zf Active Safety Gmbh Bremsaktuatoreinheit, Dehnungssensor für eine solche Bremsaktuatoreinheit sowie elektromechanische Bremse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024021262A (ja) * 2022-08-03 2024-02-16 株式会社アドヴィックス 電動制動装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062168U (ja) * 1992-04-21 1994-01-14 エヌオーケー株式会社 荷重計
JP2002162300A (ja) * 2000-11-22 2002-06-07 Nsk Ltd 軸受荷重測定用ロードセル
JP2005106487A (ja) * 2003-09-29 2005-04-21 Hitachi Ltd 力学センサおよび電動ブレーキ装置
JP2006162394A (ja) * 2004-12-06 2006-06-22 Foa-Saito:Kk 応力測定用ワッシャー
US20130126249A1 (en) * 2011-11-22 2013-05-23 Simmonds Precision Products, Inc. Load cell and applications thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062168U (ja) * 1992-04-21 1994-01-14 エヌオーケー株式会社 荷重計
JP2002162300A (ja) * 2000-11-22 2002-06-07 Nsk Ltd 軸受荷重測定用ロードセル
JP2005106487A (ja) * 2003-09-29 2005-04-21 Hitachi Ltd 力学センサおよび電動ブレーキ装置
JP2006162394A (ja) * 2004-12-06 2006-06-22 Foa-Saito:Kk 応力測定用ワッシャー
US20130126249A1 (en) * 2011-11-22 2013-05-23 Simmonds Precision Products, Inc. Load cell and applications thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023122191A1 (de) * 2023-08-18 2025-02-20 Zf Active Safety Gmbh Bremsaktuatoreinheit, Dehnungssensor für eine solche Bremsaktuatoreinheit sowie elektromechanische Bremse

Also Published As

Publication number Publication date
JP2020051817A (ja) 2020-04-02

Similar Documents

Publication Publication Date Title
JP6615365B2 (ja) 力／トルクセンサ及び方法
US6915709B2 (en) Force detection device
JP6469447B2 (ja) 多次元力覚／トルクセンサ
JP5840980B2 (ja) 操作位置検出装置、及び車載装置
WO2020066328A1 (fr) Capteur de charge et frein électrique
KR20220020888A (ko) 차량 휠의 브레이크 캘리퍼 또는 서스펜션에서의 검출 지점에서 작용하는 접선 및 수직 힘의 동시 검출을 위한 장치 및 방법
JP2011128096A (ja) 変位センサおよび力検出装置
JP5318831B2 (ja) 操作位置検出装置
WO2019116817A1 (fr) Capteur de charge, et frein électrique
JP2011209178A (ja) ３軸力センサ
US20060086185A1 (en) Acceleration sensor
JP3136188U (ja) 力検出装置
JP2019132691A (ja) 荷重センサ
JPH0526754A (ja) 静電容量の変化を利用したセンサ
JPH0584870B2 (fr)
JP2587646Y2 (ja) ３次元半導体力覚センサー
JP2018205217A (ja) 荷重センサ
US12242675B2 (en) Multi-way input device
JP2011033607A (ja) 力覚または運動センサおよびその製造方法
JP7421255B1 (ja) 力覚センサ
JP7370114B1 (ja) 個別力覚センサおよび力覚センサ
CN116893022A (zh) 力传感器装置
US20250084906A1 (en) Sensor-equipped brake pad with printed circuit board with stiffening means
JP2018036118A (ja) 電動ブレーキ用推力センサ
JPH04337431A (ja) 多次元方向に関する力・加速度・磁気の検出装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19866873

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19866873

Country of ref document: EP

Kind code of ref document: A1