On the Observability and Controllability of Active Suspension System

Abstract

The focus of this paper is on the controllability and observability of an active suspension system used in automobile. The primary responsibility of control system Engineers is to design and implement controller. The active suspension system dynamics was captured by a mathematical model. The system transfer function model was determined by using the road disturbance as input and the car response as output. The state – space representation was subjected to controllability and observability test using MATLAB commands. The result of the test shows that the rank of the state matrix was (4) which is equal to the state matrix dimension. The active suspension system is both state controllable and observable.

Keywords: Controllability, Observability, Active Suspension.