Vehicle stand test system and method

A bench test and vehicle technology, which is applied to the vehicle bench test system and its test field, to achieve the effects of reducing wear, improving safety, and shortening the test cycle

Inactive Publication Date: 2019-06-28
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, the purpose of the present invention is to provide a vehicle bench test system and its test method to solve at least one of the above technical problems

Method used

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  • Vehicle stand test system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] See Figure 1-4 This embodiment provides a vehicle bench test system, which includes an excitation mechanism 20 and a bearing mechanism 10.

[0054] Wherein, the excitation mechanism 20 includes an actuator 21 for generating excitation, and the actuator can be adjusted accordingly according to the test items of the vehicle bench test. For example, if the road simulation fatigue test of a test vehicle is performed, the road spectrum can be input to the actuator to simulate actual road conditions, and the actuator can be controlled to directly or indirectly generate a vertical upward excitation and install it on the vehicle to be tested. Carry out road simulation test. Of course, if the torsion test of the vehicle is tested, the actuator can be controlled to generate excitation in the corresponding direction and installed on the vehicle to be tested to perform the corresponding performance test. The actuator may be a hydraulic cylinder. Of course, the hydraulic cylinder ca...

Embodiment 2

[0078] Figure 5 It is a schematic structural diagram of a vehicle bench test system during a test process according to another embodiment of the present invention. Such as Figure 5 As shown, unlike Embodiment 1, this embodiment provides a vehicle bench test system, which further includes a displacement detection device 40 and a test controller.

[0079] Wherein, the displacement detection device 40 is connected to the body of the vehicle to be tested, and is used to detect the offset of the vehicle to be tested in the horizontal direction. The test controller is connected with the actuator, and is used to control the actuator to stop providing excitation if it is judged that the received offset exceeds the preset protection interval.

[0080] By setting the displacement detection device 40, the offset under each test condition can be monitored in real time. If the detected offset of the vehicle exceeds the preset protection interval, the actuator can be controlled to quickly stop...

Embodiment 3

[0092] This embodiment also provides a vehicle bench test method, which adopts the test system of embodiment 2 and includes at least the following steps:

[0093] Park the vehicle to be tested on the pallet;

[0094] Fix the test end of the displacement sensor on the body of the vehicle to be tested in the horizontal direction, and connect the other end to the fixed seat and the data acquisition line of the data acquisition instrument respectively to calibrate the sensor coefficient;

[0095] Connect the data collector to the controller and input the sensor calibration coefficient;

[0096] Set the channel path and program protection value interval of the sensor;

[0097] Start the road spectrum iteration and durability test of the vehicle, and use the response signal of the displacement sensor collected during the period as the protection target;

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Abstract

The invention discloses a vehicle stand test system and method. The test system comprises excitation mechanisms and bearing mechanisms; each excitation mechanism comprises an actuator; and one end ofeach bearing mechanism is connected with an output shaft of the corresponding actuator, and the other end of the bearing mechanism bears a tyre of a vehicle to be tested, so as to transmit verticallyupward excitation generated by the actuator to the vehicle to be tested. The bearing mechanism comprises a supporting plate, the supporting plate comprises a tyre bearing part arranged horizontally and a tyre resetting part expanded outwardly, the tyre bearing part includes a flat and straight bearing surface which can place the tyre smoothly, and the tyre resetting part includes a resetting surface arranged inclinedly. The surface of the resetting surface is smooth, and is in smooth transitional connection with the bearing surface to form a groove which can reset the tyre after movement. Thus, the tyres are worn by the supporting plates less in the movement process, wearing in the side surfaces of the tyres can be reduced, the risk of tyre damage is eliminated, the test process is safer,and the total test period is shortened.

Description

Technical field [0001] The invention relates to the technical field of instrumentation, in particular to a vehicle bench test system and a test method thereof. Background technique [0002] Automobile durability is one of the important signs of automobile quality, and durability test is a key link in product development. In the process of product development, road simulation tests are usually performed on vehicles. According to the different test objects and connection methods of the bench, the bench road simulation test can be divided into the whole wheel coupling road simulation test, the whole vehicle axle coupling road simulation test, and the component road simulation test. [0003] In related technologies, in the course of the simulation test of the whole wheel coupling road, a four-pillar bench simulation test is generally performed on the vehicle, that is, the wheel is placed on the platform on the bench, and the vertical movement of the brake is controlled to restore the ...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01M13/00
Inventor 靳晓朴董远明刘如意王海沛
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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