Event-triggered type-2 fuzzy-based sliding mode control for steer-by-wire systems. (April 2022)

• Record Type: Journal Article
• Authors: Ma, Bingxin; Wang, Yongfu; Chen, Gang
• Is Part Of: Mechatronics. Volume 82(2022)
• Publication Date: 2022-04
• Subjects: Steer-by-wire (SbW) system -- State observer -- Interval type-2 fuzzy logic system (IT2 FLS) -- Event-triggered control -- Practical finite-time stability -- Vehicle experiment; Computer integrated manufacturing systems -- Periodicals; Flexible manufacturing systems -- Periodicals; Mechatronics -- Periodicals; Productique -- Périodiques; Fabrication, Systèmes flexibles de -- Périodiques; Mécatronique -- Périodiques; Computer integrated manufacturing systems; Flexible manufacturing systems; Mechatronics; Periodicals; 629.89
• DOI: 10.1016/j.mechatronics.2021.102704
• Languages: English
• ISSNs: 0957-4158

Abstract

Abstract: This paper proposes an event-triggered higher-order sliding mode control for steer-by-wire (SbW) systems subject to limited communication resources and uncertain nonlinearity. First, an interval type-2 fuzzy logic system (IT2 FLS) is adopted to approximate the uncertain nonlinearities. A fuzzy-based state observer is developed to estimate unavailable states of the extended SbW system. Then, to save communication resources and eliminate chattering, an event-triggered higher-order sliding mode control is proposed for the SbW system. The key advantage is that the proposed control scheme can offset the observation error and the event-triggering error. After that, the practical finite-time stability of the closed-loop SbW system is proved in the framework of the Lyapunov theory. Finally, numerical simulations and vehicle experiments are given to evaluate the effectiveness and superiority of the proposed scheme.