Finite‐time active shimmy control based on uncertain disturbance observer for electric vehicle with independent suspension. Issue 13 (13th January 2021)

• Record Type: Journal Article
• Authors: Meng, Qinghua; Qian, Chunjiang; Hu, Chuan; Sun, Zong‐Yao; Wang, Pan
• Is Part Of: IET intelligent transport systems. Volume 14:Issue 13(2020)
• Page Start: 1835
• Page End: 1844
• Publication Date: 2021-01-13
• Subjects: adaptive control -- Lyapunov methods -- vehicle dynamics -- control system synthesis -- suspensions (mechanical components) -- variable structure systems -- uncertain systems -- nonlinear control systems -- observers -- steering systems -- robust control -- stability -- closed loop systems; time active shimmy control -- uncertain disturbance observer -- electric vehicle -- independent suspension -- shimmy phenomenon -- EV -- finite‐time active shimmy stability control method -- uncertainty estimation observer -- four‐degree‐of‐freedoms shimmy model -- finite‐time control method -- direct Lyapunov function method -- global stability -- hardware‐in‐the‐loop simulation test results -- built shimmy model -- designed control method -- sliding mode control method; Intelligent transportation systems -- Periodicals; Electronics in transportation -- Periodicals; 388.31205
• DOI: 10.1049/iet-its.2020.0348
• Languages: English
• ISSNs: 1751-956X

Abstract

Abstract : For attenuating the shimmy phenomenon appeared in an electric vehicle (EV) with independent suspension, this study proposes a finite‐time active shimmy stability control method based on an uncertainty estimation observer. Firstly, a four‐degree‐of‐freedoms shimmy model of an EV with independent suspension is constructed. Secondly, in order to deal with the uncertainties in the shimmy model, a finite‐time control method via a non‐linear uncertain disturbance observer is proposed. The direct Lyapunov function method is used to analyse the global stability of the closed‐loop system, and the results show that the system outputs globally converge to zero. Simulation and hardware‐in‐the‐loop simulation test results verify the built shimmy model and show the effectiveness of the designed control method compared with the sliding mode control method.