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Observer design for active suspension system using sliding mode control

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4 Author(s)
Akbari, E. ; Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia ; Farsadi, M. ; Mat Darus, I.Z. ; Ghelichi, R.

The purpose of this paper is to describe the designing method of an observer for active suspension system by using sliding mode control (SMC). In this regard, for a controlling strategy, the sliding mode has been chosen, and the observer design is used for road profile estimation. It is demonstrated theoretically and by computer simulations that the proposed controller will enhance the road handling performances for the active suspension system compared with the passive suspension system. Comparison between the efficiency of the final controller and linear quadratic regulator embedded in Matlab-Simulink is made. The mathematical modelling and simulation studies proved that SMC with disturbance observer strategy has better performance than LQR control system and the ability to absorb disturbance for SMC is much better than LQR controller.

Published in:

Research and Development (SCOReD), 2010 IEEE Student Conference on

Date of Conference:

13-14 Dec. 2010