ABSTRACT

In this paper a continuous look-ahead preview control scheme (a control strategy in which the road input is sensed before it reaches to the vehicle) is developed and applied to the well known quarter car model. The results of this study showed that the active system with preview control reduces dramatically the body acceleration and the dynamic tyre load when compared with an optimised system that does not use preview information. These substantial improvements are obtained when both systems consume the same working space. In comparison with other preview control methods, it is shown that the strategy developed in this work gives a lower overall performance index and the control law presented here is easier to realise in practice.