四轮转向汽车稳定性系统变结构控制研究

Research of automobile stability system with four wheel steering by variable structure control with sliding mode

根据直接横摆力偶矩控制原理,按照滑模变结构控制理论,分别建立了基于质心侧偏角和横摆角速度这两个控制变量的三种具有针对性的控制策略。在Simulink仿真平台上,对不同工况下汽车稳定性控制策略及控制参数等因素对控制品质的影响进行了研究。

According to the Direct Yaw Moment Control method and Variable Structure Control with Sliding Mode,based on vehicle side-slip angle and yaw rate,3 different kinds of vehicle handling stability controller are designed.At Simulink simulation flat,do simulation experiment of the concept car model with the direct yaw moment control;and which control strategy should be apply in different specifically vehicle working conditions,how the control parameters impact the control quality have been studied.