Application of H∞ control to active suspension systems

Abstract In this paper, an experimental vehicle with an active suspension system is regarded as a control object. First, the full-vehicle model representing this experimental vehicle was derived, and the control system was designed for this model using H ∞ control theory. The main purpose of this control is to achieve a robust performance. This control law has been implemented in an experimental vehicle, and evaluated for robust performance in running and shaking experiments. It has been confirmed that the desired robust performance as designed is achieved in this closed-loop system.