Abstract
The paper presents a method to optimise a car chassis fitted either with passive or active suspensions. Provided that a full vehicle model is available for accurate simulations of many different driving situations (J-turn, lane-change, power-on/power-off on even/rough, dry/wet roads), the method allows to tune the parameters of the chassis system (suspension elastokinematics, stiffnesses, dampings, actuator gains, type pressures....) in order to achieve (as much as possible) the desired dynamic behaviour of the car in all of the above driving situations. The method has been validated by optimising the parameters of the suspension system of an actual car.