Analytical and experimental studies on active suspension system of light passenger vehicle to improve ride comfort

Abstract

This paper describes the development of activesuspension system of light passenger vehicle to improveride comfort of the passengers using PID (Proportional –Integral - Derivative) controller. The system is subjected tobumpy road and its performance is assessed and comparedwith a passive suspension system. Tuning of the controllerparameters is also illustrated. Experimental verification ofanalytical results is carried out. It is found that ride comfortis improved by 78.03%, suspension travel has been reducedby 71.05% and road holding ability is improved by60% with active suspension system when compared withpassive suspension system. Therefore it is concluded thatactive suspension system with PID controller is superior topassive suspension system.