Load simulation test device for vehicle steering system
A load simulation and test device technology, which is applied in the direction of vehicle steering/bump performance, can solve the problems of lack of flexibility in loading methods, inability to dynamically change road conditions, steering resistance simulation, etc., and achieve true and reliable test results
Pending Publication Date: 2018-12-21
BEIJING CSR TIMES LOCOMOTIVE & ROLLING STOCK MECHANICS
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Problems solved by technology
However, the force generation method of the existing load simulation test device is different from the actual working condition of the vehicle steering system, and the loading method lacks flexibility, so it cannot well realize the steering resistance simulation of dynamic variable road conditions.
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Embodiment Construction
[0032] The core of the present invention is to provide a load simulation test device for a vehicle steering system, capable of simulating the actual load of the vehicle steering system.
[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] Please refer to Figure 1-Figure 3 , the embodiment of the present invention provides a load simulation test device for a vehicle steering system, hereinafter referred to as a load simulation test device A, which includes a pump station 3, a loading valve group 4, a lo...
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The invention discloses a load simulation test device for a vehicle steering system. The load simulation test device comprises an oil tank, an oil pump, a loading oil cylinder, an oil-way reversing valve set, a pressure control valve, a pressure detection part and a loading controller, wherein the telescopic rod of the loading oil cylinder is connected with the vehicle steering system; a left oilcavity and a right oil cavity of the loading oil cylinder are communicated with the oil-way reversing valve set separately, and an oil return pipeline of the oil-way reversing valve set is communicated with the oil tank; an oil supply pipeline of the oil-way reversing valve set is communicated with the oil pump; the pressure control valve is used for adjusting the oil way pressure; the pressure detection part is used for detecting the pressure of a high-pressure oil way; the loading controller is connected with the pressure control valve and the pressure detection part and is used for controlling the action of a pressure adjusting valve according to the action of the loading oil cylinder. During the steering action of the vehicle steering system, the telescopic rod of the loading oil cylinder is driven to move, and the loading controller controls the pressure adjusting valve to act according to the pressure detected by the pressure detection part and the action of the loading oil cylinder, so that the pressure is regulated to be used as load pressure to be passively acted on the vehicle steering system through a pressurizing oil cylinder, so as to simulate the friction resistance under the actual working condition.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a load simulation test device for a vehicle steering system. Background technique [0002] The vehicle steering system is an important part of the vehicle chassis and controls the driving direction of the vehicle. The quality of the steering performance has an extremely important impact on the vehicle's operational stability, driving safety and work efficiency. Sensitive steering, easy handling and reliable operation are the basic requirements for the steering system. [0003] During the steering movement, the vehicle steering system needs to overcome resistance (mainly friction) to reach the target angle. The steering system load simulation test device is an important part of the performance test in the steering system development process. The load simulation test device is connected to the steering mechanism, which can simulate the steering resistance of the car under diff...
Claims
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IPC IPC(8): G01M17/06
CPCG01M17/06
Inventor 顾凯匀王山伟牛慧峰孙德胜
Owner BEIJING CSR TIMES LOCOMOTIVE & ROLLING STOCK MECHANICS