Sliding mode control of active suspension systems using an uncertainty and disturbance estimator

Abstract

In this paper a novel active suspension scheme that can estimate the unknown road profile is proposed. The proposed scheme is a sky-hook model following scheme, based on the sliding mode control strategy augmented by an uncertainty and disturbance estimator. The model following is implemented without using an explicit model to simplify the implementation of the controller. The efficacy of the method is illustrated by simulation for an automobile vehicle suspension system. © 2011 Springer-Verlag.