Commercial vehicle air pressure braking performance hardware in-loop testing system and testing method

A technology of pneumatic braking and testing system, which is applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve problems such as lack of versatility, achieve good versatility, wide application range, improve real-time and The effect of execution efficiency

Active Publication Date: 2018-12-25
WUHAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a commercial vehicle pneumatic brake performance hardware-in-the-loop test system and test method, which solves the problem of insufficient versatility of the existing test system for commercial vehicle pneumatic brake performance testing

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  • Commercial vehicle air pressure braking performance hardware in-loop testing system and testing method
  • Commercial vehicle air pressure braking performance hardware in-loop testing system and testing method

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Embodiment Construction

[0020] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 As shown, the test system includes air brake system test bench, real-time simulation platform dSPACE real-time simulation system, software system Matlab / ControlDesk and signal processing system. The system test bench carries out data communication, and the software system Matlab / ControlDesk carries out data communication with the real-time simulation platform dSPACE real-time simulation system based on the host computer with the data line as the medium.

[0022] Pneumatic circuits such as figure 2 As shown, the functions of conventional braking and emergency braking are retained, and differential braking operation can be realized. The working process is as follows: the air source device 1 works under electric drive to generate compressed air with a certain pressure value, and...

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Abstract

The invention provides a commercial vehicle air pressure braking performance hardware in-loop testing system and a testing method. The commercial vehicle air pressure braking performance hardware in-loop testing system comprises an air pressure braking system testing platform, a real-time simulation platform, a software system and a signal processing system. The real-time simulation platform conducts digital communication with the air pressure braking system testing platform by a sensor and the signal processing system. The software system conducts digital communication with the real-time simulation platform with a data cable as a medium and based on an upper computer, and therefore air pressure braking performance hardware in-loop testing is achieved. The problem of an existing testing system of insufficient universality in commercial vehicle air pressure braking performance testing is solved.

Description

technical field [0001] The invention belongs to the technical field of hardware-in-the-loop simulation tests, and in particular relates to a hardware-in-the-loop test system and test method for air pressure braking performance of commercial vehicles. Background technique [0002] With the development of social economy, the proportion of commercial vehicles in transportation is increasing, and people's requirements for the safety performance of commercial vehicles are also getting higher and higher. Rear-end collisions caused by insufficient braking distance, longitudinal collisions caused by wheel locking and loss of steering ability, tail flicking or rushing off the road caused by tire sideslips, etc. are the main safety accidents of commercial vehicles. These safety accidents are related to the air pressure of commercial vehicles Insufficient mobility. As an important component of the commercial vehicle chassis system, the air brake system plays a very important role in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 胡剑赵鹏飞李刚炎董开开杨凡程毅邓芮宁
Owner WUHAN UNIV OF TECH
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