Control of quarter car nonlinear active suspension system

Abstract

The objective of this research is to present a quarter car nonlinear active suspension system by using the backstepping and sliding mode control approach. The purpose of a car suspension system is to improve ride quality while maintaining good handling characteristics subject to different road profile. The objective of designing the controller for car suspension system is to reduce the traditional design as a compromise between ride and handling by directly controlling the suspension forces to suit the road and driving conditions. In this research robust control technique that base on backstepping and sliding mode theory is presented and control the nonlinear active suspension system. The performance of the system, using both control approach is compared and analyzed.