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WO2008067392A2 - Capteur de charge et procede de detection de charge - Google Patents

Capteur de charge et procede de detection de charge Download PDF

Info

Publication number
WO2008067392A2
WO2008067392A2 PCT/US2007/085780 US2007085780W WO2008067392A2 WO 2008067392 A2 WO2008067392 A2 WO 2008067392A2 US 2007085780 W US2007085780 W US 2007085780W WO 2008067392 A2 WO2008067392 A2 WO 2008067392A2
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
sensors
resilient member
suspension system
ring portion
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/US2007/085780
Other languages
English (en)
Other versions
WO2008067392A3 (fr
Inventor
Mark A. Joki
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.)
Timken Co
Original Assignee
Timken Co
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 Timken Co filed Critical Timken Co
Publication of WO2008067392A2 publication Critical patent/WO2008067392A2/fr
Publication of WO2008067392A3 publication Critical patent/WO2008067392A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
    • G01L5/1627—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges

Definitions

  • This disclosure relates in general to monitoring road forces and loads applied to automotive vehicles.
  • the present disclosure relates to monitoring loads applied to a suspension system of a vehicle.
  • the road wheels couple to the suspension system of such vehicles through hub-bearing assemblies, often referred to as "wheel ends" which are supplied as preassembled units.
  • the preassembled units reduce the time required to assemble the vehicles and further improve the quality of the vehicles by eliminating critical adjustments from the assembly line. Additionally, these preassembled units are suitable for high volume production. Struts of a suspension system represent one type of these preassembled units that have facilitated the assembly of automotive vehicles.
  • a typical wheel end of an automotive vehicle includes a housing that is bolted against a steering knuckle or other suspension upright at three or four locations, normally with machine bolts that pass through the suspension system and thread into the housing. These bolts secure the entire wheel end to the suspension system.
  • the suspension system may comprise a strut having a spring and damper which transfer loads to the housing.
  • the housing includes a hub provided with a flange to which the road wheel is attached, wherein a hub spindle projects from the flange into the housing.
  • An antifriction bearing located between the housing and the hub spindle enables the hub to rotate in the housing with minimal friction.
  • Acquiring information about the loads applied to the road enhances the ability of a vehicle control system to manage drive train power, braking, steering and suspension system components.
  • the forces exerted on any wheel of the automotive vehicle, particularly on the front wheels, if known, can be employed to enhance safety.
  • Electrical signals representing wheel force can provide electronic braking and power train controls with information about vehicle loading and road conditions, enabling those controls to conform the operation of the vehicle to best accommodate the wheel loads.
  • Figure 1 is a simplified perspective view of a wheel end connected to a road wheel and a suspension system of a vehicle
  • Figure 2 is a longitudinal sectional view of the wheel end, a housing of which is fastened to the suspension system;
  • Figure 3 is a partial cross sectional view of the suspension system illustrating a load sensor having a circuit board that includes sensors operatively connected thereon in accordance with an embodiment of the present disclosure
  • Figure 4 is a plan view of the circuit board of Figure 3 illustrating radial members and transverse areas of the circuit board;
  • Figure 5 is a partial view of the circuit board illustrating sensors located at sensor locations that are positioned on the radial members and transverse areas of Figure 4;
  • Figure 6 is a partial detail view of a sensor of Figure 5 in the form of a circuit trace
  • Figure 7 is an electrical schematic of vertical load sensing connections of the sensors of Figure 5; and Figure 8 is an electrical schematic of radial load sensing connections of the sensors of Figure 5.
  • the present disclosure resides in a device for sensing applied loads in a vehicle.
  • the disclosure can be used in any appropriate load sensor application, however, for illustrative purposes, the disclosure will be described as incorporated with a vehicle strut.
  • the present disclosure describes a unique package that facilitates load sensing and reduces the complex assembly methods needed to create complex structures heretofore considered for sensing loads at wheel ends.
  • a wheel end generally shown as A which is in essence a bearing assembly, couples a road wheel R to a suspension system generally shown as 10 of an automotive vehicle (Fig. 1 ).
  • the wheel end A enables the road wheel R to rotate about an axis and to transfer both - A -
  • the suspension system 10 may be used with a steerable wheel end A and may be used with a non- steerable wheel end A.
  • the wheel end A includes a housing 12 that is bolted to the suspension system 10, a hub 14 to which the road wheel R is attached, and an antifriction bearing generally shown as 16 located between the housing 12 and hub 14 to enable the latter to rotate with respect to the former about an axis "X" of rotation with minimal friction.
  • the antifriction bearing 16 senses wheel loads applied by the road wheel R to the suspension system 10 of the vehicle.
  • the antifriction bearing 16 supports a shaft (not shown) connected to the road wheel R and provides the axis "X" of rotation about which the road wheel R can rotate.
  • the housing 12 includes a generally cylindrical body 18, which is tubular, and ears 20 that project radially from the body 18 generally midway between the ends of the body 18. The inboard segment of the body 18 is received snugly in the suspension system 10 wherein the wheel end A is attached to the suspension upright at flange 22 of the housing 12.
  • the hub 14 includes a spindle 24, which extends through the body
  • the spindle 24 merges with the hub flange 26 at an enlarged region that leads out to a cylindrical bearing seat that in turn forms a formed end 32.
  • the formed end 32 is directed outwardly away from the axis "X" of rotation and provides an inside face that is squared off with respect to the axis "X” of rotation and is presented toward the enlarged region.
  • the flange hub 26 does not have the formed end 32 at the inboard end of the spindle 24. Instead, the flange hub 26 is manufactured with a deformable end that forms the extension of the bearing seat.
  • the bearing 16 lies between the spindle 24 of the hub 14 and the housing 12 and enables the hub 14 to rotate relative to the housing 12 about the axis "X".
  • the antifriction bearing 16 is configured to transfer radial loads between the housing 12 and hub 14 and also thrust loads in both axial directions.
  • the antifriction bearing 16 comprises an outer race 34 having first and second outer raceways 36, 38 presented inwardly toward the axis "X" of rotation. As shown, the outer race 34 may be part of the housing 12.
  • the two tapered outer raceways 36 and 38 form on the interior surface of the body 18 for the housing 12, the former being outboard and the latter being inboard.
  • the two raceways 36 and 38 taper downwardly toward each other so that they have their least diameters where they are closest, generally midway between the ends of the housing 12.
  • the antifriction bearing 16 also comprises an inner race 40 having first and second inner raceways 42, 44 carried by the shaft, the first inner raceway 42 being presented toward the first outer raceway 36 and inclined in the same direction as that raceway 36, the second inner raceway 44 being presented toward the second outer raceway 38 and inclined in the same direction as that raceway 38.
  • the inner raceway 42 lies at the outboard position and faces the outboard outer raceway 36, tapering in the same direction downwardly toward the center of the housing 12.
  • the second inner raceway 44 presents outwardly toward the inboard outer raceway 38 on the housing 12 and tapers in the same direction, downwardly toward the middle of the housing 12.
  • rollers 46 Completing the bearing 16 are rolling elements in the form of tapered rollers 46 organized in two rows, one set located between and contacting the outboard raceways 36 and 42 and the other set located between and contacting the inboard raceways 38 and 44.
  • the rollers 46 of each row are on an apex.
  • the taper of the rollers 46 and raceways is such that there is pure rolling contact between the rollers 46 and the raceways 36, 38, 42 and 44.
  • the rollers 46 of each row are separated by a cage 48 that maintains the proper spacing between the rollers 46 and further retains them in place around their respective raceways in the absence of the housing 12.
  • the rollers 46 transmit thrust and radial loads between the raceways, while reducing friction to a minimum.
  • the suspension system 10 comprises a strut, such as a McPherson strut, generally shown as 50 and a load sensor generally shown as 52.
  • the strut 50 and load sensor 52 can be of any size, shape and material composition to accommodate vehicles of any size.
  • the strut 50 comprises a spring 54, a damper 56 and a spring plate 58.
  • the spring 54 and the damper 56 transfer wheel loads to vehicle structure 60. Any load transfer device that can be employed to receive and to transfer applied loads is intended to be within the scope of the disclosure.
  • the spring plate 58 operatively connects the spring 54 and damper 56 combination to antifriction bearing generally shown as 62.
  • the bearing 62 includes a fixed race 64 (i.e., non-movable) and a moveable race 66.
  • the bearing 62 also includes rolling elements in the form of balls 68 located between and contacting the fixed race 64 and the moveable race 66.
  • a cylinder 70 of the suspension system 10 supports the fixed race 64 while the spring plate 58 contacts the moveable race 66.
  • the resilient member 74 comprises a molded elastomer or elastomeric material.
  • a nut and washer combination 76 of the suspension system 10 sets the position of the moveable race 64.
  • the load sensor 52 comprises a planar element in the form of a disk shaped circuit board 78.
  • the circuit board 78 is disposed coaxially about the cylinder 70.
  • the load sensor 52 can have a variety of shapes beyond the disk shape.
  • a retainer 80 fixes the circuit board 78 to the cylinder 70.
  • the retainer 80 is secured to the cylinder 70, preferably by press fitting.
  • the circuit board 78 contains electronic circuitry for a variety of parameters such as signal amplification, temperature compensation, calibration adjustments, cross axis rejection, power conditioning and excitation, and/or wired or wireless communications.
  • Fasteners 82 such as rivets attach the circuit board 78 to the housing 72.
  • a portion of the circuit board 78 freely suspends between the retainer 80 and the fastener 82.
  • a cover 84 seals the circuit board 78 against environmental effects.
  • Cable 86 passes through the cover 84 to connect the circuit board 78 with a vehicle control system generally shown as "VCS", such that the circuit board 78 operatively communicates with the vehicle control system VCS via the cable 86.
  • VCS vehicle control system
  • the vehicle control system VCS controls braking, power train torque, steering, and/or suspension stiffness or damping based on signals received from the circuit board 78.
  • the vehicle control system VCS comprises a programmable memory that is in operative communication with the circuit board 78.
  • the circuit board 78 includes strain sensitive zones generally shown as 88. Each strain sensitive zone 88 includes sensor locations 90 (Fig. 5) which position sensors 92 near or within the strain sensitive zones 88.
  • the sensors 92 operatively connect with the circuit board 78. As will be discussed, the sensors 92 monitor and communicate vertical loads and radial loads applied by the road wheel R to the suspension system 10 and transferred to the circuit board 78 via the resilient member 74 and the cylinder 70.
  • the sensors 92 optimally include any deflection-based sensors, such as strain gauges, piezoelectric elements, micro-electro-mechanic system devices or printed circuit traces.
  • the sensors 92 can be construed in any acceptable manner and any acceptable number that allows for sensing and communicating loads and strains.
  • the circuit board 78 optimally includes an outer ring portion 94, an inner ring portion 96 and radial members 98 (webs) that connect the outer ring portion 94 and the inner ring portion 96 ( Figure 5).
  • the inner ring portion 96 forms a disk shaped center 100 of the circuit board 78.
  • Each radial member 98 has a proximal end 102 and a distal end 104 as measured from the inner ring portion 96.
  • the proximal end 102 and the distal end 104 form corners 106 at the junction of the inner ring portion 96 and outer ring portion 94 respectively.
  • the outer ring portion 94, the inner ring portion 96 and the radial members delimit apertures 108 defined through the circuit board 78.
  • the outer ring portion 94 includes a plurality of elongated slots 110 defined through the circuit board 78. Each slot includes a first end 112 and a second end 114. Optimally, the slots 110 are positioned through the outer ring portion 94 at a substantially perpendicular orientation with respect to the distal ends 104 of the radial members 98. The slots 110 and the radial members define therebetween transverse areas 116 (tangential webs) of the outer ring portion 94.
  • the circuit board 78 optimally includes four radial members 98 and four transverse areas 116. The number of radial members 98 and transverse areas 116 are representative of an embodiment and are not intended to limit the scope.
  • FIG. 5 illustrates sensor locations 90 for one of the load sensitive zones 88 of the circuit board 78. Sensor locations 90 labeled A L , A R , B L and BR are positioned near the corners 106 formed by the radial member 98 and the outer ring portion 94.
  • the sensor locations labeled D L and D R are positioned near the transverse area 116 near the first end 112 and second end 114 respectively of the slot.
  • the sensor locations labels C L and C R are positioned near the transverse areas 116 near the middle of the slot 110.
  • Sensor locations labeled E L and E R are positioned near ends of the transverse area 116.
  • Sensors 92 are generally shown operatively connected to the circuit board 78.
  • Interconnect traces 93 connect the sensor locations and respective sensors 92. Optimally, the interconnect traces are positioned parallel with the sensing locations.
  • the interconnect traces 93 are preferably located near the center axis of the radial members 88 and the transverse areas 116 to minimize sensitivity of the circuit traces 93.
  • the sensors 92 comprise printed circuit traces operatively connected to the circuit board 78.
  • the positions of the sensor locations A L , A R , B L , B R , C L , CR, D L , D R , E L , and E R are representative of an embodiment and are not intended to limit the scope of the present disclosure.
  • the sensors 92 positioned at locations A L , A R , B L , B R , C L , C R , D L , DR, EL, and E R measure strains of the circuit board 78 caused by vertical loads and radial loads applied by the road wheel R by measuring both in plane and out of plane movement of the radial members 98 and the disk shaped center 100 as the suspension system 10 experiences applied loads when the road wheel R traverses the surface
  • D L , D R , E L , and E R produce electrical signals that represent the measured loads.
  • the sensor 92 communicate the measured loads to the vehicle control system VCS.
  • the vehicle control system VCS converts the electrical signals representing the measured movements of the circuit board into resolved load values so that the vehicle control system VCS measures driving parameters.
  • sensors 92 positioned at locations AL, A R and B L , B R on the radial members 98 connect in a wheatstone bridge configuration. This connection maximizes the response to vertical loads applied by the road wheel R, rejects common mode effects such as thermal resistance change, and rejects effects due to radial deflections.
  • the output of the sensors 92 represented by the meter 118 in the diagram, is amplified and transferred to the vehicle control system VCS over the cable 86.
  • radial members 98 located 180° opposite from each other form a pair. Each pair is aligned with one orthogonal direction of the road wheel loads, i.e., lateral and longitudinal loads.
  • the sensors 92 connect in the arrangement shown in Figure 8, with the sensors having separate outputs to the vehicle control system VCS. This connection maximizes the response to loads in the desired direction, rejects common mode effects and rejects cross axis deflections.
  • the output of the sensors 92 represented by the meter 120 in the diagram, is amplified and transferred to the vehicle control system VCS over the cable 86.
  • the resilient member 74 (Fig. 3) includes sensors 122 operatively connected thereon and/or embedded therein.
  • the suspension system 10 transfers the wheel loads to the resilient member 74 such that the resilient member 74 is configured to move in response to the transferred wheel loads wherein the sensors 122 are configured to measure the strains of the resilient member 74 caused by the movements of the resilient member 74.
  • the strain loads of the resilient member 74 are resolved into at least two independent degrees of freedom, i.e., the lateral and radial loads applied by the road wheel R.
  • the sensors 122 then communicate the loads applied by the road wheel R to the vehicle control system VCS.
  • the sensors 122 of the resilient member 74 are used in conjunction with the sensors 92 of the circuit board 78.
  • the road wheels R experience forces or loads as the road wheels R move across a surface.
  • the strut 50 transfers the loads to the vehicle structure 60 through the resilient member 74.
  • the spring 54 receives the loads and applies the loads to the bearing 62 through the spring plate 58 and the damper 56.
  • the bearing 62 transfers the loads to the cylinder 70, the housing 72 and the resilient member 74.
  • the resilient member 74 retracts and expands as the resilient member 74 experiences the transferred loads from the bearing 62.
  • the cylinder 70 in response to the retractions and the expansions of the resilient member 74 moves the circuit board 78.
  • the cylinder 70 flexes the circuit board 78 since the circuit board 78 suspends between the housing 72 and the cylinder 70.
  • the radial members 98 When acted upon by loads, the radial members 98 flex to allow motion of the disk shaped center 100 of the circuit board 78 to move in the plane of the circuit board 78 and perpendicular to the radial members 98 as well move as out of plane with respect to the circuit board 78.
  • the transverse areas 116 flex to allow motion of the disk center 100 parallel to the radial members 98.
  • the sensors 92 measure both in plane and out of plane movements of the radial members 98, the disk shaped center 100 and the transverse areas 116 as the suspension system 10 experiences applied loads when the road wheel R traverses the surface.
  • the sensors 92 respond to both vertical loads and radial loads as reflected by the movement of the circuit board 78.
  • the sensors 92 connected to the radial members 98 will measure vertical loads while sensors 92 connected to the transverse areas 90 will measure radial loads.
  • the sensors 92 measure strains of the circuit board 78 caused by the movements of the circuit board 78.
  • the sensors 92 produce electrical signals that represent the measured loads to which the respective sensors 92 are attached.
  • the sensors 92 communicate the measured loads to the vehicle control system VCS to measure driving parameters.
  • the vehicle control system VCS controls braking, power train torque, steering, and/or suspension stiffness or damping based on signals received from the sensors 92.
  • the wheel loads are transferred from the suspension system 10 to the resilient member 74 which moves in response to the transferred wheel loads.
  • the sensors 122 associated with the resilient member 74, measure strains of the resilient member 74 caused by movement of the resilient member 74 in response to the loads transferred to the resilient member 74.
  • the measured strains of the resilient member 74 are resolved into load values of at least two independent degrees of freedom.
  • the sensors 122 communicate the measured loads of the resilient member 74 to the vehicle control system VCS to measure driving parameters.
  • the materials for the circuit board 78 and sensors 92, 122 may comprise a plurality of materials that can be formed by any acceptable composition or manner that allows for sensing loads and strains.
  • the measurements from the load sensor 52 are compared with other vehicle sensors (not shown) over periods of time and corrections will be made to the calibration of the sensor 92, 122.
  • the measured lateral forces are compared with measured lateral accelerations and lateral accelerations computed from steering angles and vehicle speed to determine corrections to the measured lateral forces.
  • the measured longitudinal forces are compared against brake actuation forces, drive train power, and vehicle longitudinal acceleration/deceleration to determine corrections to the measured longitudinal forces. Additionally, the measured vertical forces are compared against long term observations.
  • periods of unloaded operation are identified with historical data to compare against the known vehicle weight.
  • the long term comparison of front/rear load transfer during braking and side/side load transfer during cornering can also be used as reference for vertical load recalibration by the vehicle control system VCS.
  • the present disclosure provides the resilient member 74, circuit board 78 and associated sensors 92, 122 of the load sensor device 52, which are robust against environmental effects such as corrosion and are easily serviceable.
  • the mounting surface for the circuit board 78 is protected from the environment and not subjected to corrosion or other environmental effects.
  • the disclosure provides various means for attaching the sensor circuit board 78 to the cylinder 70, means for sealing the mounting surface and means for monitoring and communicating the applied loads.
  • the load sensor device 52 of the present disclosure may be used for a variety of sensor technologies.
  • the load sensor device 52 is shown with a McPherson strut wherein the load sensor device 52 may be used with all strut assemblies.
  • the load sensor device 52 of the present disclosure has utility beyond vehicle control systems. Indeed, the load sensor device 52 may be used in any housing that experiences, transfers or receives loads.
  • strain sensors such as, but not limited to, resistive, optical sensors, capacitive sensors, inductive sensors, piezoresistive, magnetostrictive, MEMS, vibrating wire, piezoelectric, and acoustic sensors, printed circuit traces are suitable and may be used within the scope of the disclosure.
  • resistive, optical sensors, capacitive sensors, inductive sensors, piezoresistive, magnetostrictive, MEMS, vibrating wire, piezoelectric, and acoustic sensors, printed circuit traces are suitable and may be used within the scope of the disclosure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vehicle Body Suspensions (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

L'invention concerne un dispositif capteur de charge (52) servant à mesurer des charges de contact de roue appliquées sur un système de suspension (10) du véhicule. Le capteur de charge (52) selon l'invention comprend un élément souple (74) raccordé fonctionnel au système de suspension (10) et à un logement (72). Une carte de circuits imprimés (78) est fixée au système de suspension (10) et au logement (72), des capteurs (92) étant fixés sur ladite carte (78). Ces capteurs (92) mesurent les mouvements de la carte (78) créés en réponse aux charges de roue appliquées par l'élément souple (74).
PCT/US2007/085780 2006-11-28 2007-11-28 Capteur de charge et procede de detection de charge Ceased WO2008067392A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86753506P 2006-11-28 2006-11-28
US60/867,535 2006-11-28

Publications (2)

Publication Number Publication Date
WO2008067392A2 true WO2008067392A2 (fr) 2008-06-05
WO2008067392A3 WO2008067392A3 (fr) 2008-10-16

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ID=39468685

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/085780 Ceased WO2008067392A2 (fr) 2006-11-28 2007-11-28 Capteur de charge et procede de detection de charge

Country Status (1)

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WO (1) WO2008067392A2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2546625A1 (fr) * 2011-07-12 2013-01-16 Sensata Technologies, Inc. Capteur de force et son procédé d'assemblage
EP3318212A1 (fr) * 2016-11-08 2018-05-09 Covidien LP Capteurs de force pour dispositifs chirurgicaux permettant d'empêcher la pénétration de fluides
JP2018146309A (ja) * 2017-03-02 2018-09-20 株式会社レプトリノ 力覚センサ
JP2018159715A (ja) * 2018-07-11 2018-10-11 株式会社レプトリノ 力覚センサ及び力覚センサのブリッジ回路構成方法
JPWO2017212866A1 (ja) * 2016-06-08 2019-02-14 日立オートモティブシステムズ株式会社 力センサ
WO2019163258A1 (fr) * 2018-02-21 2019-08-29 アルプスアルパイン株式会社 Capteur de couple
CN113188812A (zh) * 2021-04-25 2021-07-30 中国第一汽车股份有限公司 一种乘用车车身六自由度载荷测试及计算方法
JP2022010551A (ja) * 2020-06-29 2022-01-17 トヨタ自動車株式会社 力覚センサ
US11768118B2 (en) 2020-06-29 2023-09-26 Toyota Jidosha Kabushiki Kaisha Force sensor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244338A1 (de) * 1972-09-09 1974-03-21 Fichtel & Sachs Ag Anordnung zum messen der daempfkraft
JPS57169643A (en) * 1981-04-13 1982-10-19 Yamato Scale Co Ltd Load cell for multiple components of force
US5127277A (en) * 1989-07-26 1992-07-07 Lucas Industries Public Limited Co. Measuring loads on vehicle wheels
JP2793012B2 (ja) * 1990-05-28 1998-09-03 株式会社ユニシアジェックス 荷重検出装置
GB9305841D0 (en) * 1993-03-20 1993-05-05 Lucas Ind Plc Vehicle force transducer system
US5979218A (en) * 1997-11-12 1999-11-09 Chrysler Corporation Strut mount transducer

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013019895A (ja) * 2011-07-12 2013-01-31 Sensata Technologies Inc 力センサアッセンブリおよび力センサアッセンブリの組立方法
EP2546625A1 (fr) * 2011-07-12 2013-01-16 Sensata Technologies, Inc. Capteur de force et son procédé d'assemblage
JPWO2017212866A1 (ja) * 2016-06-08 2019-02-14 日立オートモティブシステムズ株式会社 力センサ
EP3656333A1 (fr) * 2016-11-08 2020-05-27 Covidien LP Capteurs de force pour dispositifs chirurgicaux permettant d'empêcher la pénétration de fluides
EP3318212A1 (fr) * 2016-11-08 2018-05-09 Covidien LP Capteurs de force pour dispositifs chirurgicaux permettant d'empêcher la pénétration de fluides
US10959800B2 (en) 2016-11-08 2021-03-30 Covidien Lp Force sensors for surgical devices to prevent ingress of fluids
JP2018146309A (ja) * 2017-03-02 2018-09-20 株式会社レプトリノ 力覚センサ
WO2019163258A1 (fr) * 2018-02-21 2019-08-29 アルプスアルパイン株式会社 Capteur de couple
JPWO2019163258A1 (ja) * 2018-02-21 2020-09-17 アルプスアルパイン株式会社 トルクセンサ
JP2018159715A (ja) * 2018-07-11 2018-10-11 株式会社レプトリノ 力覚センサ及び力覚センサのブリッジ回路構成方法
JP2022010551A (ja) * 2020-06-29 2022-01-17 トヨタ自動車株式会社 力覚センサ
JP7343450B2 (ja) 2020-06-29 2023-09-12 トヨタ自動車株式会社 力覚センサ
US11768118B2 (en) 2020-06-29 2023-09-26 Toyota Jidosha Kabushiki Kaisha Force sensor
US11788906B2 (en) 2020-06-29 2023-10-17 Toyota Jidosha Kabushiki Kaisha Force sensor
CN113188812A (zh) * 2021-04-25 2021-07-30 中国第一汽车股份有限公司 一种乘用车车身六自由度载荷测试及计算方法

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