CN113804458A - Motor vehicle dynamic braking performance calibration device and calibration system - Google Patents
Motor vehicle dynamic braking performance calibration device and calibration system Download PDFInfo
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- CN113804458A CN113804458A CN202111033224.9A CN202111033224A CN113804458A CN 113804458 A CN113804458 A CN 113804458A CN 202111033224 A CN202111033224 A CN 202111033224A CN 113804458 A CN113804458 A CN 113804458A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses a dynamic braking performance calibration device for a motor vehicle, which comprises an industrial control host, a wheel torque sensor and a wireless acquisition and transmission module, wherein the industrial control host is connected with the wheel torque sensor through a wireless acquisition and transmission module; the industrial control host is configured for recording a braking force value and a braking curve, obtaining a dynamic error of the braking inspection bench through a comparison method, and then calibrating; the wheel torque sensor is arranged between the test shaft of the test vehicle and the wheel hub; the wireless acquisition and transmission module is arranged on the wheel torque sensor and is configured to be used for sending detection data of the wheel torque sensor to the industrial personal computer, and the wheel torque sensor is electrically connected with the wireless acquisition and transmission module; the dynamic brake performance calibration device for the motor vehicle can be used for starting a test vehicle on a brake test bed according to a normal safety inspection program to test the brake force, simultaneously recording the brake force value and the brake curve, obtaining the dynamic error of the brake test bed through a comparison method, and then calibrating.
Description
Technical Field
The invention relates to the technical field of motor vehicle debugging, in particular to a device for calibrating dynamic braking performance of a motor vehicle.
Background
The brake performance of the motor vehicle is required to be forcibly checked in the national standard GB 7258-2017 motor vehicle operation safety technical condition, an available road test or bench test checking method is specified, and a bench test checking method is usually adopted in actual detection. The bench test inspection bench comprises a roller counter-force type brake inspection bench and a plate type brake inspection bench, wherein the roller counter-force type brake inspection bench comprises a pair of left and right rollers, a motor, a reducer, a transmission chain, a force measuring sensor, a control device and the like; the flat plate type brake inspection platform is different from a roller counter-force type brake inspection platform, the flat plate type brake inspection platform consists of a left flat plate and a right flat plate, a force transducer and a measuring mechanism are arranged in the flat plates, when a vehicle is inspected, the flat plates are driven at a certain speed to brake, and then the braking force of each wheel is measured through the force transducer and the measuring mechanism. The two measurement tracing modes of the test brake inspection bench adopt manual operation and static calibration methods at present, only the force transducer is directly calibrated, and the dynamic performances of a transmission mechanism, a control device, a measurement mechanism and the like of the brake inspection bench cannot be effectively detected.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dynamic brake performance calibration device for a motor vehicle, which can be used for starting a test vehicle on a brake test bed according to a normal security check program to test the brake force, simultaneously recording the brake force value and the brake curve, obtaining the dynamic error of the brake test bed by a comparison method and facilitating the later calibration.
In order to solve the problems, the invention adopts the following technical scheme:
a dynamic braking performance calibration device for a motor vehicle comprises an industrial control host, a wheel torque sensor and a wireless acquisition and transmission module;
the industrial control host is configured for recording a braking force value and a braking curve, and obtaining a dynamic error of the braking inspection bench by a comparison method;
the wheel torque sensor is arranged between the test shaft of the test vehicle and the wheel hub;
the wireless acquisition and transmission module is arranged on the wheel torque sensor and is configured to be used for sending the detection data of the wheel torque sensor to the industrial personal computer, and the wheel torque sensor is electrically connected with the wireless acquisition and transmission module.
Preferably, the test vehicle further comprises an adapter for connecting the test shaft of the test vehicle with the wheel torque sensor, and the adapter is provided with an insertion hole matched with the test shaft of the test vehicle.
Preferably, a counterweight mechanism is arranged on the wheel torque sensor, and the counterweight mechanism is detachably connected with the wheel torque sensor.
Preferably, the counterweight mechanism comprises an arc-shaped connecting block and a counterweight strip, the arc-shaped connecting block is fixedly connected with the wheel torque sensor, the arc-shaped connecting block is tightly attached to the arc surface of the wheel torque sensor, the arc-shaped connecting block is identical to the arc surface of the torque sensor in radian, a positioning groove matched with the counterweight strip is formed in the arc-shaped connecting block, and the counterweight strip is inserted into the positioning groove.
Preferably, a positioning assembler for fixing the weight bar is arranged in the positioning groove.
Preferably, the positioning assembler comprises an upper positioning plate, a lower positioning plate and a pressing type elastic self-locking mechanism, wherein an adsorbing body used for adsorbing the counterweight strip is arranged on the front surface of the upper positioning plate, a guide sleeve is arranged below the positioning plate, a guide shaft matched with the guide sleeve is arranged on the front surface of the lower positioning plate, and the guide shaft is inserted into the guide sleeve.
Preferably, the back surface of the lower positioning plate is provided with a positioning column and a positioning sleeve, the arc-shaped connecting block is provided with a first positioning hole matched with the positioning column, the arc-shaped connecting block is provided with a second positioning hole matched with the positioning sleeve, the positioning sleeve is provided with a screw hole, and the lower positioning plate is provided with a bolt body screwed into the screw hole.
Preferably, the counterweight strip is configured to be inserted into the positioning groove and enable one end surface of the counterweight strip to be flush with the side surface of the arc-shaped connecting block when the pressing type elastic self-locking mechanism is subjected to self-locking.
Preferably, the side surface of the counterweight strip is provided with a pull-out groove, and the counterweight strip is also configured to have one end surface and the pull-out groove both extending out of the positioning groove when the self-locking state of the pressing type elastic self-locking mechanism is released through pressing.
The invention also provides a calibration system, which comprises a brake inspection bench and the motor vehicle dynamic brake performance calibration device, wherein the brake inspection bench is electrically connected with the industrial control host.
The invention has the beneficial effects that: the device mainly comprises an industrial control host, a wheel torque sensor and a wireless acquisition and transmission module, and the working principle is that the wheel torque sensor is arranged on a test shaft of a test vehicle, the test vehicle is driven to a brake test bed according to a normal security check program to test the braking force, the braking force value and the braking curve are recorded at the same time, the dynamic error of the brake test bed is obtained through a comparison method, and then calibration is carried out.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram showing the connection of components of a dynamic braking performance calibration apparatus for a motor vehicle according to the present invention.
Fig. 2 is a schematic view showing the assembly of a wheel torque sensor of a dynamic braking performance calibration apparatus for a motor vehicle according to the present invention.
Fig. 3 is an exploded perspective view of a weight mechanism of a dynamic braking performance calibration apparatus for a motor vehicle according to the present invention.
Fig. 4 is a schematic structural view of a positioning jig of a dynamic braking performance calibration apparatus for a motor vehicle according to the present invention.
Fig. 5 is a partial structural view of a weight strip of a dynamic braking performance calibration apparatus for a motor vehicle according to the present invention.
Fig. 6 is a block diagram of the connection of components of a calibration system according to the present invention.
10. An industrial control host;
20. a wheel torque sensor;
30. a wireless acquisition and transmission module;
40. an adapter; 41. an insertion hole;
50. a counterweight mechanism; 51. an arc-shaped connecting block; 52. a weight strip; 521. pulling out the groove; 53. positioning a groove; 54. a positioning assembler; 541. an upper positioning plate; 542. a lower positioning plate; 543. a pressing type elastic self-locking mechanism; 544. an adsorbent; 545. a guide sleeve; 546. a guide shaft; 547. a bolt body; 548. a positioning column; 549. positioning the sleeve;
60. and (5) braking the inspection bench.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, and not all of the embodiments.
In embodiments, it is to be understood that the terms "middle," "upper," "lower," "top," "right," "left," "above," "back," "middle," and the like are used in the orientation or positional relationship indicated in the drawings for convenience of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting.
In addition, in the description, it is to be noted that unless otherwise explicitly stated or limited, terms such as mounted, connected and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Examples
As shown in fig. 1 to 6, a device for calibrating dynamic braking performance of a motor vehicle comprises an industrial control host 10, a wheel torque sensor 20 and a wireless acquisition and transmission module 30; the industrial personal computer 10 is configured to record a braking force value and a braking curve, obtain a dynamic error of the braking inspection bench through a comparison method, and then calibrate; the wheel torque sensor 20 is used for being installed between a test shaft of the test vehicle and a wheel hub; the wireless acquisition and transmission module 30 is disposed on the wheel torque sensor 20, the wireless acquisition and transmission module 30 is configured to send the detection data of the wheel torque sensor 20 to the industrial personal computer 10, and the wheel torque sensor 20 is electrically connected to the wireless acquisition and transmission module 30. The device mainly comprises an industrial control host 10, a wheel torque sensor 20 and a wireless acquisition transmission module 30, and the working principle is that the wheel torque sensor 20 is installed on a test shaft of a test vehicle, the test vehicle is driven to a brake test bench according to a normal security check program to carry out braking force test, a braking force value and a braking curve are recorded at the same time, a dynamic error of the brake test bench is obtained through a comparison method, and then calibration is carried out.
In the embodiment, the testing device further comprises an adapter 40 for connecting the testing shaft of the testing vehicle and the wheel torque sensor 20, and the adapter 40 is provided with an insertion hole 41 matched with the testing shaft of the testing vehicle. The wheel torque sensor is arranged between a wheel hub and an axle through an adapter 40 and has the functions of connection and stress transmission. When the brake works, the brake force is transmitted to the axle through the wheels, torque strain is generated on a strain body of the wheel torque sensor, a strain value is converted into an electric signal and is output to the wireless acquisition and transmission module 30, and a corresponding torque value is measured. The wheel torque sensor works according to the detection range of the braking force and converts the work into the measurement range of the torque parameter. The axle center of the wheel torque sensor is coaxial with the axle center of the wheel, and the accuracy of measuring the dynamic stress condition of the wheel is ensured as long as the coaxiality is not more than phi 0.5 m.
The braking test bench applies rolling force to the wheels through the rollers in the wheel detection process, when an operator steps on a brake pedal, the measurement process of the braking force of the rollers is a dynamic detection process, in the detection process, the wheels of the test vehicle rotate under the driving of the rollers of the braking test bench, after a brake is stepped on, the braking force is transmitted to the rollers through the wheels, and the braking force is measured by the wheel torque sensor. The detection process is a dynamic process, and the acquired braking force is the maximum force value in the braking process.
Because the wheel torque sensor is arranged on the wheel in the using process and operates on the brake test bed together with the detection vehicle, and the wheel torque sensor is driven by the wheel axle to rotate together with the wheel axle in the operating process, the wheel torque sensor connected with the wheel cannot output a measurement signal in a wired connection mode in the detection process, and a set of special wireless measurement transmission module needs to be designed.
A set of special wireless acquisition transmission module researched and designed by the device comprises but is not limited to a high-precision data acquisition unit, an ultra-low power consumption wireless telemetering transceiver and a shell. The high-precision data acquisition unit and the ultra-low power consumption wireless telemetering transceiver are manufactured into a measuring device with a tiny volume through high integration, and the measuring device is independently installed at the shell of the wheel torque sensor, and the low power consumption design ensures that an independent battery can be used for supplying power. And the measurement result of the torque sensor is sent to the industrial control host in real time in a wireless mode, and is displayed and recorded through the industrial control host and the display software. In order to ensure the dynamic performance of the acquired data and ensure the accuracy and reliability of the measurement curve, the dynamic acquisition frequency of the wireless acquisition and transmission module needs to reach more than 100 Hz.
A wheel torque sensor and a wireless measurement transmission module are adopted to acquire torque parameter physical signals in the dynamic braking process of the motor vehicle; the signal is converted into a digital signal through a signal amplification and A/D conversion circuit; and then the measurement result of the wheel torque sensor is sent to the wireless host computer in real time in a wireless mode. The automatic testing and calibrating functions of the dynamic braking performance of the motor vehicle are realized through the functions of data acquisition, data display, maximum value statistics and the like.
As shown in fig. 2, in some embodiments, a weight mechanism 50 is disposed on the wheel torque sensor 20, and the weight mechanism 50 is bolted to the wheel torque sensor 20, so that the balance during operation can be increased by providing the weight mechanism.
As shown in fig. 3, in some embodiments, the weight mechanism 50 includes an arc-shaped connection block 51 and weight bars 52, the arc-shaped connection block 51 is fixedly connected to the wheel torque sensor 20, the arc-shaped connection block 51 is tightly attached to the arc surface of the wheel torque sensor 20, the arc-shaped connection block 51 has the same arc as the arc surface of the wheel torque sensor 20, the arc-shaped connection block 51 is provided with positioning grooves 53 paired with the weight bars 52, the weight bars 52 are inserted into the positioning grooves 53, the weight mechanism 50 has good weight balancing flexibility, and the number of the weight bars 52 can be selected according to actual conditions.
In some embodiments, as shown in fig. 3, a positioning assembly 54 for fixing the weight bar 52 is provided in the positioning groove 53.
As shown in fig. 4, in some embodiments, the positioning assembly 54 includes an upper positioning plate 541, a lower positioning plate 542 and a pressing type elastic self-locking mechanism 543, wherein an absorption body 544 for absorbing the weight strip 52 is disposed on a front surface of the upper positioning plate 541, a guide sleeve 545 is disposed under the upper positioning plate 541, a guide shaft 546 paired with the guide sleeve 545 is disposed on a front surface of the lower positioning plate 542, and the guide shaft 546 is inserted into the guide sleeve 545.
In some embodiments, the pressing type elastic self-locking mechanism 543 adopts a ratchet-based pressing type elastic self-locking mechanism.
In some embodiments, the adsorbent 544 employs a magnet.
As shown in fig. 4, in some embodiments, a positioning post 548 and a positioning sleeve 549 are disposed on a back surface of the lower positioning plate 542, a first positioning hole (not shown) paired with the positioning post 548 is disposed on the arc-shaped connecting block 51, a second positioning hole (not shown) paired with the positioning sleeve 549 is disposed on the arc-shaped connecting block 51, both the first positioning hole and the second positioning hole are communicated with the positioning groove 53, a screw hole (not shown) is disposed on the positioning sleeve 549, a bolt body 547 screwed into the screw hole is disposed on the lower positioning plate 542, and the lower positioning plate 542 and the arc-shaped connecting block 51 are connected through the bolt body 547, the positioning post 548 and the positioning sleeve 549, so that the connection stability is good and the arc-shaped connecting block is not easy to fall off.
In some embodiments, the weight bar 52 is configured to be inserted into the positioning groove 53 and make an end surface of the pressing elastic self-locking mechanism 543 level with a side surface of the arc-shaped connecting block 51 when the pressing elastic self-locking mechanism 543 is self-locked, so that the weight bar 52 can be effectively prevented from hitting other objects when the device works, and the safety can be effectively improved.
As shown in fig. 5, in some embodiments, the weight bar 52 is provided with a pulling groove 521 at a side surface thereof, and the weight bar 52 is further configured such that when the pressing type elastic self-locking mechanism 543 is released from the self-locking state by pressing, an end surface thereof and the pulling groove 521 extend out of the positioning groove 53. The counterweight strip 52 is convenient to disassemble and assemble, has good stability after being installed, and is not easy to fall off.
As shown in fig. 6, the present invention further provides a calibration system, which includes a brake checking platform 60, and further includes the above calibration apparatus for dynamic braking performance of a motor vehicle, wherein the brake checking platform 60 is electrically connected to the industrial host 10.
The foregoing is illustrative of embodiments of the present invention, and the scope of the invention is not limited thereto, as any changes or substitutions that do not occur to the skilled artisan are intended to be covered by the scope of the invention, and no element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the article "the" is intended to include the incorporation of one or more items referenced by the article "the" and may be used interchangeably with "one or more". Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. In addition, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and/or" unless specifically stated otherwise, e.g., if used in conjunction with "or" only one of.
Claims (10)
1. A motor vehicle dynamic braking performance calibration device is characterized in that: comprises that
The industrial control host is configured for recording a braking force value and a braking curve, obtaining a dynamic error of the braking inspection bench through a comparison method, and then calibrating;
the wheel torque sensor is used for being installed between the test shaft of the test vehicle and the wheel hub; and
the wireless acquisition and transmission module is arranged on the wheel torque sensor and is configured to be used for sending the detection data of the wheel torque sensor to the industrial personal computer, and the wheel torque sensor is electrically connected with the wireless acquisition and transmission module.
2. A motor vehicle dynamic braking performance calibration device according to claim 1, characterized in that: the test vehicle torque sensor comprises a wheel torque sensor and a test vehicle testing shaft, and further comprises an adapter piece used for connecting the test vehicle testing shaft and the wheel torque sensor, wherein the adapter piece is provided with an insertion hole matched with the test vehicle testing shaft.
3. A motor vehicle dynamic braking performance calibration device according to claim 1, characterized in that: the wheel torque sensor is provided with a counterweight mechanism, and the counterweight mechanism is detachably connected with the wheel torque sensor.
4. A device for calibrating the dynamic braking performance of a motor vehicle according to claim 3, wherein: the counter weight mechanism includes arc connecting block and counter weight strip, the arc connecting block with wheel torque sensor fixed connection, the arc connecting block hugs closely on wheel torque sensor's the cambered surface, the arc connecting block with torque sensor's cambered surface radian is the same, be provided with on the arc connecting block with the counter weight strip matches the constant head tank of right, the counter weight strip inserts in the constant head tank.
5. The device according to claim 4, wherein: and a positioning assembler for fixing the counterweight strip is arranged in the positioning groove.
6. A motor vehicle dynamic braking performance calibration device according to claim 5, characterized in that: the positioning assembler comprises an upper positioning plate, a lower positioning plate and a pressing type elastic self-locking mechanism, wherein an adsorption body used for adsorbing the balance weight bar is arranged on the front surface of the upper positioning plate, a guide sleeve is arranged below the positioning plate, a guide shaft matched with the guide sleeve is arranged on the front surface of the lower positioning plate, and the guide shaft is inserted into the guide sleeve.
7. The device according to claim 6, wherein: the back of the lower positioning plate is provided with a positioning column and a positioning sleeve, a first positioning hole matched with the positioning column is formed in the arc-shaped connecting block, a second positioning hole matched with the positioning sleeve is formed in the arc-shaped connecting block, a screw hole is formed in the positioning sleeve, and a bolt body screwed into the screw hole is formed in the lower positioning plate.
8. The device according to claim 6, wherein: and the counterweight strip is configured to be inserted into the positioning groove and one end surface of the counterweight strip is flush with the side surface of the arc-shaped connecting block when the pressing type elastic self-locking mechanism is subjected to self-locking.
9. The device according to claim 6, wherein: the side surface of the counterweight strip is provided with a pulling groove, and the counterweight strip is also configured to be released through pressing when the self-locking state of the pressing type elastic self-locking mechanism is released, and one end surface of the counterweight strip and the pulling groove both extend out of the positioning groove.
10. A calibration system comprising a brake test stand, characterized by: further comprising a device for calibrating the dynamic braking performance of a motor vehicle according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111033224.9A CN113804458B (en) | 2021-09-03 | 2021-09-03 | Dynamic braking performance calibration device and calibration system for motor vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111033224.9A CN113804458B (en) | 2021-09-03 | 2021-09-03 | Dynamic braking performance calibration device and calibration system for motor vehicle |
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| CN113804458A true CN113804458A (en) | 2021-12-17 |
| CN113804458B CN113804458B (en) | 2023-06-30 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943626A (en) * | 2010-08-19 | 2011-01-12 | 吉林大学 | Dynamic calibration device of counter-force roller braking bench based on hydraulic servo |
| CN107806997A (en) * | 2017-10-17 | 2018-03-16 | 北京新能源汽车股份有限公司 | Vehicle brake test bench |
| CN107817112A (en) * | 2017-09-20 | 2018-03-20 | 邢台中测仪器设备有限公司 | The detecting system of Vehicles Brake Test Bench |
| EP3343193A1 (en) * | 2016-12-12 | 2018-07-04 | Dekra Automobil GmbH | Mobile calibrating apparatus for a test stand for brakes |
| CN109341929A (en) * | 2018-11-26 | 2019-02-15 | 广州计量检测技术研究院 | Braking torque test macro |
| JP2019031130A (en) * | 2017-08-04 | 2019-02-28 | 株式会社Ｓｕｂａｒｕ | Vehicle braking apparatus and vehicle braking method |
| CN111103090A (en) * | 2018-10-25 | 2020-05-05 | 北京振兴计量测试研究所 | Torque calibration device of steering engine test system |
| CN112406841A (en) * | 2019-08-21 | 2021-02-26 | 福特全球技术公司 | System and method for improving traction of a vehicle comprising two electric machines |
| CN213516362U (en) * | 2020-12-21 | 2021-06-22 | 昆山礼仁义精密机械有限公司 | Utensil is examined to car power assisted steering system transmission shaft |
-
2021
- 2021-09-03 CN CN202111033224.9A patent/CN113804458B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943626A (en) * | 2010-08-19 | 2011-01-12 | 吉林大学 | Dynamic calibration device of counter-force roller braking bench based on hydraulic servo |
| EP3343193A1 (en) * | 2016-12-12 | 2018-07-04 | Dekra Automobil GmbH | Mobile calibrating apparatus for a test stand for brakes |
| JP2019031130A (en) * | 2017-08-04 | 2019-02-28 | 株式会社Ｓｕｂａｒｕ | Vehicle braking apparatus and vehicle braking method |
| CN107817112A (en) * | 2017-09-20 | 2018-03-20 | 邢台中测仪器设备有限公司 | The detecting system of Vehicles Brake Test Bench |
| CN107806997A (en) * | 2017-10-17 | 2018-03-16 | 北京新能源汽车股份有限公司 | Vehicle brake test bench |
| CN111103090A (en) * | 2018-10-25 | 2020-05-05 | 北京振兴计量测试研究所 | Torque calibration device of steering engine test system |
| CN109341929A (en) * | 2018-11-26 | 2019-02-15 | 广州计量检测技术研究院 | Braking torque test macro |
| CN112406841A (en) * | 2019-08-21 | 2021-02-26 | 福特全球技术公司 | System and method for improving traction of a vehicle comprising two electric machines |
| CN213516362U (en) * | 2020-12-21 | 2021-06-22 | 昆山礼仁义精密机械有限公司 | Utensil is examined to car power assisted steering system transmission shaft |
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| CN113804458B (en) | 2023-06-30 |
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