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Automobile shock absorber performance test method and automobile shock absorber performance test system

A test system and test method technology, applied in the field of testing, can solve the problem that the performance test results of the shock absorber cannot accurately reflect the real performance of the shock absorber, and achieve the effect of accurate and real performance

Inactive Publication Date: 2015-11-04
SAIC MOTOR
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shock absorber performance test results obtained by the above method cannot accurately reflect the real performance of the shock absorber

Method used

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  • Automobile shock absorber performance test method and automobile shock absorber performance test system
  • Automobile shock absorber performance test method and automobile shock absorber performance test system
  • Automobile shock absorber performance test method and automobile shock absorber performance test system

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Embodiment Construction

[0036] In the prior art, the performance test of the vehicle shock absorber is generally carried out on a shock absorber test bench. However, this kind of vibration damping performance test can only simulate the actual working conditions of the shock absorber as much as possible, and the vibration source is artificially manufactured for vibration damping test. There is still a certain difference between the simulated working conditions and the actual working conditions of the shock absorber, so that the results of the shock absorber performance test cannot truly and accurately reflect the performance of the shock absorber.

[0037] Another way is to test the performance of the shock absorber on the whole vehicle. In this way, the power transmission path of the engine is selected as the engine-flywheel-shock absorber-clutch driving disc-clutch driven disc-gearbox input shaft, and the aforementioned The rotation pulse signal of the gear teeth at the front and rear ends of the sh...

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Abstract

An automobile shock absorber performance test method and an automobile shock absorber performance test system are provided. The method comprises the following steps: acquiring a rotation pulse signal of the teeth of a flywheel gear at the front end of a shock absorber and a rotation pulse signal of the teeth of an oil pump driving gear at the rear end of the shock absorber under actual working conditions as a first pulse signal and a second pulse signal respectively; performing analog-to-digital conversion on the first pulse signal and the second pulse signal to obtain a first digital signal and a second digital signal; and analyzing and comparing the first digital signal and the second digital signal to obtain an automobile shock absorber performance test result. According to the scheme, as the gear rotation pulse signals at the front and rear ends of the shock absorber in an engine power transmission path in a finished automobile environment in which all parts are constantly in rigid connection are adopted as a basis for shock absorber performance test, the result of shock absorber performance test is more accurate.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a method and system for testing the performance of a vehicle shock absorber. Background technique [0002] With the continuous improvement of automobile manufacturing level, people put forward higher requirements for the comfort, safety and reliability of vehicles. The shock absorber installed between the gearbox and the engine, its main function is to reduce the torsional vibration of the engine by suppressing the shock when the spring rebounds after absorbing the shock and the impact from the road surface, and its performance directly affects the comfort and safety of the vehicle sex and reliability. [0003] In the prior art, in order to test the performance of the shock absorbers, a common practice is to perform the performance tests of the shock absorbers one by one on a special shock absorber test bench. Another approach is to select the gear rotation pulse signals at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/04
Inventor 方伟荣姜超孙光辉李晨高志丰
Owner SAIC MOTOR
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