In this paper,to address the problem that high-speed vehicles are prone to cross-swing instability and driving away from the predetermined path under the under crosswind disturbance,an eight-degree-of-freedom dynamics model of the whole vehicle considering the role of side winds is established,and the phase plane method is used to identify the state of the vehicle in the side-wind environment,and an active front-wheel steering(AFS)and direct yaw moment control(DYC)coordinated controller is designed to carry out the stability control of automobile travelling in the crosswind environment.Under crosswind interference conditions,simulation verification is conducted on the control algorithm,and the results show that the lateral displacement of vehicles with AFS and DYC coordinated controllers is smaller than that of vehicles without control or a single controller.The yaw rate,center of mass sideslip angle,and lateral acceleration are significantly improved,enhancing the safety and stability of vehicles driving in crosswind environments.
关键词
侧风干扰/稳定性控制/相平面法/协调控制
Key words
Crosswind disturbance/stability control/phase plane method/coordinated control
维普
万方数据