Multi objective optimization of quarter car parameters for better ride comfort and road holding

Abstract

Ride comfort of a vehicle is the measure of complacency that a passenger can experience during the travel. The present work focuses on optimizing the quarter car suspension parameters to provide better ride comfort and road holding. Initially a commercially available damper of a light motor vehicle has been characterized to understand its force- displacement behavior and the damping coefficient of this damper has been determined using this characterization result. These damping coefficient values have been considered for quarter car analysis using Matlab simulink model. Vehicle speed, sprung mass, spring constant are the other parameters considered along with damping constant. Design of experiment has been used to conduct simulation considering the parameters for three levels. Multi objective Genetic algorithm (MOGA) has been used to optimize the input parameters for better ride comfort and road holding. � 2019 Author(s).