Title :
Robust sensor fault detection and isolation for a Steer-by-Wire system based on sliding mode observer
Author :
Dhahri, Slim ; Sellami, Anis ; Ben Hmida, Faycal
Author_Institution :
Higher Sch. of Sci. & Tech. of Tunis, Univ. of Tunis, Tunis, Tunisia
Abstract :
A new approach for the design of robust H∞ sliding mode observer for Steer-by-Wire (SBW) systems with parametric uncertainties and sensor faults is proposed based on linear matrix inequalities (LMIs). The resulting H∞ observer guarantees asymptotic stability of the estimation error dynamics and is robust against parametric uncertainties. A sensor fault estimation scheme is presented where the estimated signal can approximate the fault signal to any accuracy. The effectiveness of the proposed approach is verified by simulations.
Keywords :
H∞ control; asymptotic stability; estimation theory; fault diagnosis; linear matrix inequalities; observers; road vehicles; robust control; steering systems; uncertain systems; variable structure systems; vehicle dynamics; H∞ observer; LMI; SBW systems; asymptotic stability; estimated signal; estimation error dynamics; fault signal; linear matrix inequality; parametric uncertainty; robust H∞ sliding mode observer design; robust sensor fault detection and isolation; sensor fault estimation scheme; sensor faults; steer-by-wire system; Observers; Robustness; Steering systems; Uncertainty; Vehicle dynamics; Vehicles; Wheels;
Conference_Titel :
Electrotechnical Conference (MELECON), 2012 16th IEEE Mediterranean
Conference_Location :
Yasmine Hammamet
Print_ISBN :
978-1-4673-0782-6
DOI :
10.1109/MELCON.2012.6196470
