Observer design for active suspension system using sliding mode control

Abstract

The purpose of this project is to construct to design an observer for active suspension system by using sliding mode control. The sliding mode control was chosen as a control strategy, and the road profile is estimated by using an observer design. It will be demonstrated theoretically and by computer simulations that the proposed controller enhanced road handling performances for the active suspension system compared to the passive suspension. And the performance of the proposed controller will be compared to the linear quadratic regulator by using the MATLAB and SIMULINK toolbox. A mathematical modelling and simulation study will illustrate 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.