Balance control for dynamic displacement of active suspension and ride comfort

被引：0
|
作者：
Gong, Mingde [1 ,2 ]
Bi, Jiaming [1 ,2 ]
Yang, Haoran [1 ,2 ]
Xu, Xueliang [1 ,2 ]
Sun, Tianshuo [1 ,2 ]
机构：
[1] Yanshan Univ, Sch Mech Engn, 438 Hebei St West Sect, Qinhuangdao 066000, Peoples R China
[2] Yanshan Univ, Hebei Key Lab Special Carrier Equipment, Qinhuangdao, Peoples R China
来源：
JOURNAL OF VIBRATION AND CONTROL | 2024年
基金：
中国国家自然科学基金;
关键词：
Active suspension; ride comfort; suspension dynamic displacement; balance control; SLIDING-MODE CONTROL; SYSTEMS; OBSERVER; DESIGN;
D O I：
10.1177/10775463241273780
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper aims to optimize the conflicting performance indicators of ride comfort and suspension dynamic displacement by introducing a balance control strategy for active suspension. An unknown nonlinear estimator (UNE) based on a low-pass filter is devised to accurately estimate the unknown nonlinear forces generated by springs and tires. In the designed control strategy, balance controller adjusts the ride comfort when the suspension dynamic displacement is lower than the set threshold, and adjusts the suspension dynamic displacement when it is higher. The boundedness of all variables in a closed-loop system is proved by Lyapunov functions. Simulation investigations and comparison results on different road surfaces are provided to show the satisfactory performance of the designed control method.
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页数：14
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