一种静音直线负载气动控制方法及系统

By adjusting the air pressure difference of the cylinder group through the air pressure control module, the load can be finely adjusted, solving the loading control problem of the loading mechanism and improving the quietness and accuracy of abnormal noise testing.

CN115824672BActive Publication Date: 2026-07-17CHINA AUTOMOTIVE ENG RES INST +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AUTOMOTIVE ENG RES INST
Filing Date
2023-01-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing abnormal noise test benches, the loading control requirements of the loading mechanism are high. Conventional gas springs cannot achieve free and precise adjustment of the load, resulting in high noise in the test environment and low test accuracy.

Method used

The pneumatic control module adjusts the air pressure difference of the cylinder group, and the air pressure of the cylinder group is controlled by the proportional valve and the air valve to achieve fine adjustment of the load. It is equivalent to a gas spring with a variable elastic coefficient for silent load loading.

Benefits of technology

It achieves quietness and accuracy in load loading, constructs a quiet testing environment, improves the accuracy of steering gear noise testing, reduces test noise, and enhances the reliability of test data.

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Abstract

本发明涉及汽车测试装置技术领域,公开了一种静音直线负载气动控制方法及系统,包括载荷加载设备,所述载荷加载设备包括气缸组;所述气缸组与待测的转向机连接,且用于向转向机施加直线负载;还包括控制设备;所述控制设备包括气压控制模块;所述载荷加载设备还包括比例阀和气阀;所述比例阀与气缸组连接,且用于调节向气缸组充入的气体量;所述气阀用于切换气缸充气的腔体;所述气压控制模块与比例阀和气阀均建立控制连接,且气压控制模块用于控制气缸组的气压差值,并控制气缸组进行静音式负载加载。本发明能够精准控制直线负载加载,完成细致的静音负载气动控制。
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