This paper describes a new controlled suspension system that affords superior passenger comfort and safety irrespective of the road profile and driving situation. The experimental vehicle was built by Renault, and developed in conjunction with Lipmesa associated with Sagem. This vehicle is equipped with four quick-acting variable-damping shock absorbers. The damping force is controlled in real time on the basis of information qualifying the pilot's driving, and information obtained from the road profile. The set value of force is calculated taking into acccount the velocity of shock absorber displacement and the map of its force-velocity pattern. The results of the simulation calculations and the dynamic tests performed on the vehicle show the effectiveness of the new concept. This provides a substantial improvement in safety combined with increased comfort.
Samenvatting