Sensitivity Analysis and Adaptive Tracking Control of Electro-hydraulic Active Suspensions

被引：2
|
作者：
Chen H. [1 ,2 ]
Gong M. [1 ,2 ]
Zhao D. [1 ,2 ]
Zhang W. [1 ,2 ]
Zhang Y. [1 ,2 ]
Hao C. [1 ,2 ]
机构：
[1] School of Mechanical Engineering, Yanshan University, Hebei, Qinhuangdao
[2] Key Laboratory of Special Carrier Equipment of Hebei Province, Hebei, Qinhuangdao
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2023年 / 34卷 / 04期
关键词：
active suspension; adaptive control; electro hydraulic servo system; emergency rescue vehicle; sensitivity analysis;
D O I：
10.3969/j.issn.1004-132X.2023.04.013
中图分类号：
学科分类号：
摘要：
Emergency rescue vehicles carried heavy loads and travel on complex roads and the response and control accuracy of output forces of electro-hydraulic active suspensions were very important to attenuate vibrations. Firstly, the mathematical model of electro-hydraulic active suspension system was established. Secondly, the trajectory sensitivity equation of the system was established to give the sensitivity of the main parameters with the force step response, so as to provide a theoretical basis for the performance optimization. Thirdly, considering the large load characteristics of electro-hydraulic active suspensions and the sensitivity analysis results, a reference model adaptive controller was designed. Finally, the adaptive control effectiveness was verified by experiments. The results show that the proposed control method effectively improves the tracking performance and the force control accuracy of the electro-hydraulic active suspension actuator units. It will help the vehicle active suspension system to realize various advanced control algorithms. © 2023 China Mechanical Engineering Magazine Office. All rights reserved.
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页码：481 / 489
页数：8
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