Title: T-S fuzzy observers design and actuator fault tolerant control applied to vehicle lateral dynamics

Authors: Naoufal El Youssfi; Rachid El Bachtiri; Hicham El Aiss

Addresses: TSI Laboratory, EST, CED-STI, FST, USMBA, Fez, Morocco ' TSI Laboratory, EST, CED-STI, FST, USMBA, Fez, Morocco ' Electrical Engineering Department, University of Santiago, Chile

Abstract: In this study, we present a method for estimating actuator faults along with a technique of fault-tolerant control (FTC) based on fuzzy observers for continuous Takagi-Sugeno (T-S) fuzzy models, which are affected by modelling disturbances and actuator faults. The stability analysis is based on the quadratic function of Lyapunov and resolving a convex set of linear matrix inequalities (LMIs). The purpose is to ensure the asymptotic stability of the system states and to compensate for the impact of disturbances and actuator faults. Ultimately, numerical simulations on the vehicle lateral dynamics model exemplify the efficiency of the proposed control and the fuzzy observers' design procedure.

Keywords: fault-tolerant control; FTC; vehicle lateral dynamics; linear matrix inequality; LMI; fault estimation; T-S fuzzy models.

DOI: 10.1504/IJDSSS.2021.114555

International Journal of Digital Signals and Smart Systems, 2021 Vol.5 No.2, pp.105 - 124

Received: 02 Jan 2020
Accepted: 15 Feb 2020
Published online: 27 Apr 2021 *

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