An adaptive backstepping sliding mode control strategy for the magnetorheological semi-active suspension

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-23 DOI:10.1177/09544070241260454

Xin Xiong, Zeyu Pan, Yaming Liu, Jingjing Yue, Fei Xu

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引用次数: 0

Abstract

This paper proposes an adaptive backstepping sliding mode control strategy for addressing nonlinear issues in the semi-active suspension systems, such as uncertainties and external disturbances. Firstly, a hyperbolic tangent model is chosen for parameters identification of the magnetorheological (MR) damper, and a model for the semi-active suspension system is established. Secondly, a control strategy is designed by combining the backstepping and sliding mode control strategies, and adaptive methods are employed to mitigate external disturbances, enhance the robustness of the controller, and estimate system uncertainties. Finally, the stability and controllability of the closed-loop system are verified using Lyapunov theory. Under the road excitations of A-Class, B-Class, and speed bump, the dynamic characteristics of the passive control, backstepping sliding mode control, and adaptive backstepping sliding mode control strategies applied to the MR semi-active suspension are analyzed. The vertical acceleration of vehicle body, suspension dynamic deflection, and tire dynamic load are selected as evaluation indexes, the results indicate that this control strategy significantly improved the ride comfort and handling stability of the vehicle.

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磁流变半主动悬架的自适应反步进滑模控制策略

本文提出了一种自适应反步进滑模控制策略，用于解决半主动悬架系统中的非线性问题，如不确定性和外部干扰。首先，选择双曲正切模型对磁流变（MR）减振器进行参数识别，并建立半主动悬架系统模型。其次，结合反步法和滑模控制策略设计了一种控制策略，并采用自适应方法来缓解外部干扰、增强控制器的鲁棒性以及估计系统的不确定性。最后，利用 Lyapunov 理论验证了闭环系统的稳定性和可控性。在 A 级、B 级和减速带等路面激励下，分析了应用于 MR 半主动悬架的被动控制、反步滑模控制和自适应反步滑模控制策略的动态特性。选取车身垂直加速度、悬架动态挠度和轮胎动态载荷作为评价指标，结果表明该控制策略显著提高了车辆的乘坐舒适性和操纵稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.