The effect of matrix C in sliding mode control with composite nonlinear feedback control strategy in MacPherson active suspension system

Abstract

The C matrix in Sliding Mode Control (SMC) is significant to the control performance in MacPherson active suspension system. The SMC was combined with Composite Nonlinear Feedback (CNF) controller due to its characteristics on the transient response and fast settling time. The Neural Network is used to determine the matrix of C based on the road profiles used in this research work. The Proportional Integral (PI) was combined with SMC to overcome the uncertainties, unmatched condition and steady state error occurred in the MacPherson active suspension system. The three road profiles have been applied to this research work. The multi-body dynamics system software called CarSim is used for validation. The numerical experiment results are shown the effect of the C matrix in SMC with CNF controller performance in acceleration of sprung mass.