A Quarter-Car Suspension System: Car Body Mass Estimator and Sliding Mode Control

The purpose of this paper is to present a robust control scheme for a quarter-car suspension system under a road disturbance profile. Here a linear mathematical model is presented in order to design a sliding mode controller that allows avoid the induced road variations over the car body. Novelty of this paper is given by the algebraic estimator used to find the car body mass of the quarter-car system, the results show that the main control objective can be reached: the passengers comfort.