Controlling the Vibration of Bus Suspension System using different Controller

Abstract

This paper presents the application of PI and PID controller to control the vibration occurred in the bus suspension system. When the suspension system is designed, a ¼ model of bus is used to simplify the problem to a one dimensional mass spring-damper system. Its open-loop performance on the basis of time response is observed which depicts that the bus suspension has oscillations with large settling time. To overcome this problem, closed-loop system is used. Despite continuous advancement in control theory, Proportional –Integral (PI) and Proportional-Integral-Derivative (PID) Controllers are the popular technique to control any process. In this paper, Proportional-Integral (PI) and Proportional-Integral-Derivative (PID) controllers are used to control the vibrations to give smooth response of the bus suspension system and carry-out their comparison on the basis of time and frequency using Matlab environment. The simulation and implementation of the controller is done using MATLAB/SIMULINK. Keywords: Bus suspension system, dynamic modeling, P controller, PI controller, PID controller, State space model, Matlab/Simulink.