DefinePK

Abstract

Suspension system is one of the important parts of any vehicle system. The main task of suspension system is to ensure the stability of the vehicle from any road disturbances and provide security and to the passenger. However, most of the vehicle manufacturer is still facing difficulties to fully achieve these objectives. There are various of research that focusing on the techniques to obtain a good stabilization and comfortability of vehicle suspension system. Thus, this work proposed Linear Quadratic Regulator (LQR) to maintain good road handling of the suspension system and provide comfortability of the passenger. The system performance with LQR is then compared with the system with pole-placement controller. The simulation results show that suspension system with LQR managed to maintain the stabilization of the system within the acceptable transient response specification. Besides, the performance of suspension travel, car body acceleration and wheel deflection of the system is improved with LQR in terms of its maximum peak and settling time.