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Robust sensor fault detection and isolation for a Steer-by-Wire system based on sliding mode observer

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3 Author(s)
Slim Dhahri ; Higher School of Sciences and Techniques of Tunis, University of Tunis, 5 street Taha Hussein, 1008 Tunis, Tunisia ; Anis Sellami ; Faycal Ben Hmida

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.

Published in:

2012 16th IEEE Mediterranean Electrotechnical Conference

Date of Conference:

25-28 March 2012