H2 Optimal and μ -synthesis Design of Quarter Car Active Suspension System

Abstract

Better journey comfort and controllability of automobile are pursued via car industries with the aid of considering using suspension system which plays a very crucial function in handling and ride comfort characteristics. This paper presents the design of an active suspension of quarter automobile system using robust H2 optimal controller and robust μ - synthesis controller with a second order hydraulic actuator. Parametric uncertainties have been additionally considered to model within the system. Numerical simulation become completed to the designed controllers. Results display that during spite of introducing uncertainties, the designed μ - synthesis controller improves ride consolation and road protecting of the automobile while as compared to the H2 optimal controller.

Index Terms--- Quarter car active suspension system, H2 optimal controller, μ - synthesis controller

DOI: 10.7176/CTI/10-03

Publication date:July 31^st 2020