Side-slip angle estimation for vehicle Electronic Stability Control based on sliding mode observer

The Electronic Stability Control (ESC) system is analyzed to provide available information for side-slip angle estimation. According to analysis of research on side-slip angle estimation, a sliding mode observer of side-slip angle is designed based on ESC sensor system and seven-freedom vehicle model, the stability of observer is also discussed. The verification of sliding mode observer is carried out under veDYNA vehicle dynamic simulation environment, the result indicates that the side-slip angle estimation of sliding mode observer holds certain accuracy and meets the requirement of ESC logic.