Sliding-Mode Control of the Active Suspension System with the Dynamics of a Hydraulic Actuator

Abstract EN

An improved model of the active suspension system is proposed.

Compared with the existing model of active suspension system, the dynamics of a hydraulic actuator in the active suspension system is fully considered in the proposed model.

Based on the proposed model, a sliding-mode control method is designed to control the active suspension system.

Stability proof and analysis of the closed-loop system of the active suspension is given by using Lyapunov stability theory.

At last, the reliability and feasibility of the proposed sliding-mode control method are evaluated by computer simulation.

Simulation research shows that the proposed sliding-mode control method can obtain good control performance for the active suspension system.