Research on Self-learning Strategy of Vehicle Stability Factor
Stability factor is a key parameter to characterize the steady-state response of vehicles,and it is very important for vehicle yaw control.Due to many factors affecting the stability factor,such as vehicle mass,center of mass position,tire pressure and side stiffness,it is difficult to obtain the stability factor accurately.At the same time,in the process of vehicle driving,tire wear,tire pressure changes or tire model changes will lead to changes in the stability factor,which will affect the vehicle yaw control.Based on this background,this paper develops the vehicle stability factor self-learning strategy based on the stability factor theory model and vehicle kinematics equation.The test results show that this method can effectively modify the vehicle stability factor and improve the yaw control effect.