Vehicle height adjustment of closed-loop air circuit laterally interconnected air suspension system

被引：0
作者：
Jiang, Hong [1 ]
Yang, Yongfu [1 ]
Yu, Pengfei [1 ]
Xu, Xing [2 ]
Li, Mei [3 ]
机构：
[1] School of Mechanical Engineering, Jiangsu University, Zhenjiang
[2] Automotive Engineering Research Institute, Jiangsu University, Zhenjiang
[3] Mechanical and Electrical Engineering College, Hainan University, Haikou
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2015年 / 41卷 / 11期
关键词：
Air suspension; Closed-loop; Lateral interconnection; Proportion integration differentiation-pulse-width modulation (PID-PWM); Vehicle height adjustment;
D O I：
10.13700/j.bh.1001-5965.2014.0759
中图分类号：
学科分类号：
摘要：
In order to further improve the dynamic and energy-economic performance of air suspension, a closed-loop air circuit laterally interconnected air suspension structure which combines the advantages of both interconnected air suspension system and closed-loop air circuit air suspension height control system with high and low pressure chambers was proposed. In order to deal with the portability defects caused by traditional air suspension height control strategy when it's applied to the interconnected suspension system, a special proportion integration differentiation-pulse-width modulation (PID-PWM) height control strategy designed for laterally interconnected air suspension was proposed and a corresponding mathematical model was established for simulation study via MATLAB/Simulink. The simulation results show that the control strategy works effectively, the overshoot phenomenon is avoided and the portability defects have been solved. A height adjustment experiment is carried out on a test bench and the impact of different initial pressure of gas chamber on the charging/discharging time as well as the control error during the vehicle height adjustment were studied. The experimental results show that the control strategy for the closed-loop air circuit laterally interconnected air suspension system can adjust the vehicle body height rapidly and accurately. The correctness of the mathematical model and the validity of control strategy are verified. The study about the impact of gas chamber initial pressure provides a theoretical basis for the setting of the vehicle height adjustment system parameters. © 2015, Beijing University of Aeronautics and Astronautics (BUAA). All right reserved.
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页码：2010 / 2016
页数：6
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