提出了一种基于直接横摆力矩控制器(DYC)和制动防抱死系统(ABS)分层协调控制策略的汽车电子稳定程序(ESP)控制方法,以提高ESP的控制效果。在DYC和ABS的基础上设计了一个协调控制器,将控制系统分成上下层。上层协调控制器根据侧偏角的偏差值和车轮的滑移率计算出对下层子系统的调节量,统一协调下层的DYC和ABS工作。仿真结果表明,采用此协调控制策略,可比单独采用DYC更好地维持车辆的方向稳定性和侧向性能。
A layered coordinated control strategy for direct yaw moment control (DYC) and anti-block braking system (ABS) were adopted aiming at improving the performance of electronic stability program (ESP). An upper coordinated controller was designed to adjust the bottom controllers DYC and ABS according to vehicle dynamic information. Simulation results show that the vehicle with coordinated control of DYC and ABS achieve better performances of dynamic stability when steering.