Study of the Influence of Body Roll on Lateral Stability When Maneuvering and Cornering

Abstract

AbstractThe lateral stability of a modern car during heavy traffic is mainly determined by the roll angle of the sprung mass. The roll arm of the sprung mass, the angular stiffness of the elastic elements of the suspension and anti-roll bar, as well as the magnitude of the lateral inertia force, have a significant effect on the roll angle and, accordingly, the lateral stability of the vehicle. Knowledge of the theory of motion and the development of vehicle lateral stability is important for the development of vehicle lateral stability systems, which should provide improved road safety. This article describes a study of the effect of body roll on the lateral stability of a vehicle in a combined mode of high-speed cornering or during intensive maneuvering. The lateral forces and body roll angle were determined under the combined modes of heavy traffic on turns and when maneuvering a van-type vehicle, taking into account the angular stiffness of the suspension. The obtained results of the lateral forces and the body roll angle in the combined mode of high–speed cornering or during intensive maneuvering are compared, tested, and proposed for the modernization of lateral stabilization systems of the serial van-type vehicle, as well as for future research on the creation of controlled stabilizers.KeywordsLateral forceCentrifugal forceRoll angleAnti-roll barsVehicle rolloverRoll stabilitySuspension stiffness