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Vol. 165, Issue 2, February 2014, pp. 68-73




The Design and Simulation of the Modular Vehicle Air Suspension Height Control System Based on ECAS

1 Yang Peigang, 2 Bao Jianming, 1 Jiang Ruibin, 1 Xiong Shaohua, 1 Diao Yifeng

1 Vehicle Engineering Department, Hunan Biological and Electromechanical Polytechnic, Changsha 410126, China
2 Special Vehicles Department, Dongfeng Automobile Co., Ltd. Wuhan 430056, China

E-mail: 5229889@qq.com


Received: 12 November 2013 /Accepted: 28 January 2014 /Published: 28 February 2014

Digital Sensors and Sensor Sysstems


Abstract: Based on ECAS, this paper intended to develop a modular air suspension height control system with WABCO4728800010 two-position three way solenoid valves and Free scale MC9S12D64 microprocessor as its core components. And a simulation test was conducted in MATLAB/Simulink environment. The air suspension height control strategy of this system was divided into four modules: start control module, dynamic adjustment module, manual adjustment module and errors adjustment module, which were controlled by module select switch. Simulation tests indicated that the air suspension height control strategy is featured by its logical control accuracy and debug convenience, and the modular design greatly reduced the system complexity and software development cycle and costs as well.


Keywords: ECAS, Modular, Air suspension, Suspension height control, Simulink simulation.


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