Sliding mode control with disturbance observer for active suspension

被引：0

作者：

Qin W. ^{[1
]}

Zhu G. ^{[2
]}

Shangguan W.-B. ^{[1
]}

Ahmed W. ^{[1
]}

机构：

[1] School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou

[2] Ningbo Runzhou Auto Parts CO. Ltd., Ningbo

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2020年 / 33卷 / 01期

关键词：

A quarter-car model; Disturbance observer; Double-wishbone suspension; Sling mode control;

D O I：

10.16385/j.cnki.issn.1004-4523.2020.01.018

中图分类号：

学科分类号：

摘要：

To reduce the sprung mass acceleration, an algorithm of the sliding mode control with disturbance observer is proposed for a quarter-car model with double-wishbone suspension. The second-order linear control system of a quarter car model is obtained by the equilibrium condition of the forces acting on the sprung mass in a quarter-car model. Due to the unknown information of road excitation, these forces of suspension spring, damper and external disturbance acting on the sprung mass are estimated by using a disturbance observer which is developed based on the sliding mode control. The control force of a quarter-car model with sliding mode control of disturbance observer is obtained by using the estimated values of disturbance observer. Under the road excitation of the step displacement, the controlling performance (sprung mass acceleration) of the double-wishbone active suspension system is calculated with the sliding mode controller and the PID controller. It is shown that the controlling performance using sliding mode controller is better than that of using PID controller under the external disturbance force. By analyzing the influences of the control parameter and the external disturbance force on the controlling performance, the algorithm effectiveness of a sliding mode control with disturbance observer for a double-wishbone active suspension system is confirmed. © 2020, Nanjing Univ. of Aeronautics an Astronautics. All right reserved.

引用

页码：158 / 167

页数：9

共 17 条

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