Conference article

Modeling and Simulation Vehicle Air Brake System

Li He
CAD Center, Huazhong University of Science and Technology, China

Xiaolong Wang
CAD Center, Huazhong University of Science and Technology, China

Yunqing Zhang
CAD Center, Huazhong University of Science and Technology, China

Jinglai Wu
CAD Center, Huazhong University of Science and Technology, China

Liping Chen
CAD Center, Huazhong University of Science and Technology, China

Download articlehttp://dx.doi.org/10.3384/ecp11063430

Published in: Proceedings of the 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany

Linköping Electronic Conference Proceedings 63:47, s. 430-435

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Published: 2011-06-30

ISBN: 978-91-7393-096-3

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Air brake system has been widely used in heavy trucks and intercity buses for its great superiori-ty over other brake system. The practical per-formance of air brake system may be greatly different from if we analyze it with static theory. Thus; it is necessary to build an integrate air brake system model to simulate the process of brake accurately. However; the dynamic mathematic model of air brake system is very complicate; which makes the model hard to be solved. In this paper; the components of air brake system are decomposed to several basic standard pneumatic components; and then build the system based on these basic standard pneu-matic components. The standard pneumatic components which are built in the software-Mworks based on Modelica language include cylinder; nozzle; air reservoir; volume; and air pipe. An air brake system which contains brake valve; relay valve; brake chambers and pipelines is made based on the standard pneumatic components. The simulation results show the dynamic characteristics of air brake system.

Keywords

Air brake system; dynamic model; Modelica

References

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