Abstract

Abstract This paper aims to investigate the performance of a quarter car semi-active suspension system using PID controller under MATLAB Simulink Model. Dynamic system used in this study is a linear system. A linear system can capture basic performances of vehicle suspension such as body displacement, body acceleration, wheel displacement, wheel deflection, suspension travels. Performance of suspension system is determined by the ride comfort and vehicle handling. It can be measured by car body displacement and wheel deflection performance. Two types of road profiles are used as input for the system. Results show that the performance of body displacement and wheel displacement can be improved by using the proposed PID controller.

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