Vehicle road simulation system

A road simulation and vehicle technology, applied in the field of vehicle road simulation system, can solve the problems of inability to assess the durability of the powertrain suspension system, the subframe and the body structure, the complex structure of the simulation test system, and the poor simulation accuracy. Achieve the effect of improving versatility and reliability, improving simulation accuracy, and fast response.

Active Publication Date: 2018-10-23
SAIC MOTOR
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Problems solved by technology

The torque output of the vehicle powertrain and the load caused by the uneven road are transmitted to the frame and body through the powertrain suspension system, and the existing road simulation test system cannot simulate the torque output of the powertrain, so the torque of the powertrain cannot be assessed Durability problems of powertrain suspension system, subframe and body structure caused by output
[0004] In order to solve this problem, at

Method used

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Embodiment Construction

[0028] As mentioned above, the current vehicle road simulation system either has the problem of complex structure or the problem of poor simulation accuracy.

[0029] In order to solve the above problems, the vehicle road simulation system of the embodiment of the present invention sets the body structure and chassis system of the test vehicle to be the same as the actual vehicle, the output shaft of the test power source and the casing of the test power source are relatively stationary, and the test The housing of the power source does not output power, and when the control test clutch is closed, it outputs the road that can simulate the driving of the test vehicle and the output of the torque of the test power source to the power assembly through the movement of the road simulation test system. The force generated by the suspension system can simulate the force of the powertrain suspension system on the actual vehicle, avoiding the direct loading of the powertrain suspension ...

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Abstract

A vehicle road simulation system is disclosed. The system comprises a road simulation test system and a test vehicle. The test vehicle comprises a test power assembly, a vehicle body structure and a chassis system. The test power assembly comprises a test transmission, a test power source and a test clutch. The chassis system comprises a power assembly suspension system and other chassis structurecomponents. The parameters of the test power assembly and an actual vehicle power assembly are the same. When the test clutch is closed, the road simulation test system outputs an acting force to thetest power assembly through motion. The acting force simulates the acting force generated by the random vibration of the power assembly caused by road surface roughness and the acting force generatedby the output of a test power source torque to the power assembly suspension system. In the above scheme, power assembly suspension load accuracy simulation can be realized, and simultaneously, the complexity of the vehicle road simulation system is reduced.

Description

technical field [0001] The invention relates to the field of vehicle simulation and testing, in particular to a vehicle road simulation system. Background technique [0002] In automobile development, the design of each component needs to go through trial and error and modification and optimization. In order to find the problems existing in the car design as soon as possible, so as to greatly shorten the development cycle and reduce the development cost, cars generally need to undergo public road tests and intensive road tests, but these two tests are time-consuming and expensive. and issues affecting the progress of product development. Therefore, there has been a road simulation test system suitable for the axles of the vehicle and the front / rear suspension of the vehicle chassis, which is used to test the durability of the vehicle chassis system, body and other structures. Although the road simulation test system can better simulate the load caused by the uneven road su...

Claims

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Application Information

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IPC IPC(8): G01M17/04
CPCG01M17/04
Inventor 宫海彬姚烈顾宇庆张皓清关平俞华张博舒志能吴鹏
Owner SAIC MOTOR
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