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Testing device and testing method for automatic pressure regulating valve of electric control pneumatic braking system

A technology of automatic pressure regulation and pneumatic braking, which is applied to valve devices, measuring devices, mechanical valve testing, etc., and can solve problems such as time-consuming, labor-intensive, high-risk, and low-efficiency

Active Publication Date: 2020-10-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the actual vehicle test is directly used, it will not only be time-consuming and labor-intensive, but also have low efficiency and high risk. Therefore, it is urgent to develop a detection device for automatic pressure regulating valves to ensure that the functions and performance of automatic pressure regulating valves meet the loading requirements.

Method used

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  • Testing device and testing method for automatic pressure regulating valve of electric control pneumatic braking system
  • Testing device and testing method for automatic pressure regulating valve of electric control pneumatic braking system
  • Testing device and testing method for automatic pressure regulating valve of electric control pneumatic braking system

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Embodiment Construction

[0042] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0043] See figure 1 , An embodiment of the present invention is an electronic control pneumatic brake system automatic pressure regulating valve test device includes a test bench, air source 1, pneumatic circuit, brake chamber 21, valve, sensor, muffler 14, signal processing unit And industrial computer 25;

[0044] See Figure 3 to Figure 5 , The test bench includes a dedicated bracket, an insulated console and a frame; the dedicated bracket is made of 304 stainless steel, including on-off valve bracket, globe valve bracket, electric proportional valve bracket, brake chamber bracket and force sensor bracket, which are used to connect On-off valve 4, shut-off valve, electric proportional valve, brake chamber 21 and force sensor 23 are fixed on the insulated operation table, so that the pneumatic circuit is on the same plane, which increases the smoothne...

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Abstract

The invention provides a testing device and testing method for an automatic pressure regulating valve of an electric control pneumatic braking system. The testing device comprises an air source, a pneumatic loop, a valve, a sensor, a signal processing unit and a control unit. The automatic pressure regulating valve is subjected to rack testing including function testing, static performance testing, dynamic performance testing, air tightness testing, leakage testing and braking force testing, so that high risk of real vehicle detection is avoided, the testing efficiency is improved, and the testing consistency is guaranteed. According to the invention, the automatic pressure regulating valve is checked before loading; the performance is improved by continuously modifying the parameters of the automatic pressure regulating valve through testing, so that the automatic pressure regulating valve meets the real-time, rapid, independent and accurate requirements required by the commercial vehicle electronic control pneumatic braking system, the braking response time of the commercial vehicle electronic control pneumatic braking system is shortened, and the reliability of the commercial vehicle electronic control pneumatic braking system is improved. Data of the automatic pressure regulating valve are collected and displayed in real time, and operation is convenient; detection processis high in automation degree.

Description

Technical field [0001] The invention belongs to the technical field of motor vehicle braking, and specifically relates to a test device and a test method for an automatic pressure regulating valve of an electronically controlled pneumatic brake system. Background technique [0002] The safety, stability and comfort of commercial vehicles are the focus of the road transportation industry. The pneumatic braking system is the core module that determines the braking performance of commercial vehicles and is one of the most important devices to avoid traffic accidents. In recent years, the electronically controlled pneumatic braking system (EBS, Electronic Braking System) of commercial vehicles at home and abroad has been greatly developed and gradually equipped on commercial vehicles to improve the braking performance and enhance the safety of commercial vehicles. [0003] As the core component of the electronically controlled pneumatic braking system for commercial vehicles, the autom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003G01M3/28F17D5/00
CPCG01M13/003G01M3/2876F17D5/00
Inventor 李刚炎包汉伟胡剑杨凡郭仪凡张莉莎
Owner WUHAN UNIV OF TECH
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