摘要
建立了线控转向系统机械路感模拟和直流无刷电机的数学模型。针对线控转向系统需要直流无刷电机响应快、鲁棒性高的要求,采用双闭环控制策略,其中电流环采用PID控制,转角环采用滑膜变结构控制。通过matlab/simulink仿真和Labview硬件在环试验,验证了所设计的双闭环控制在鲁棒性和跟随性方面都要优于普通PID控制。
A mathematical model of steer-by-wire system mechanical road feel simulation and brushless DC motor is built. The double- loop control strategy in which the current loop uses PID control and corner loop uses sliding mode variable structure control to meet the requirements of rapid response and high robustness of the steer-by-wire system. The matlab/simulink simulation and Labview hardware-in-loop test verify that the double-loop control is superior to common PID control in robustness and tracking ability.
出处
《汽车技术》
北大核心
2015年第12期21-24,共4页
Automobile Technology
关键词
线控转向系统
前轮转角
直流无刷电机控制策略
硬件在环试验
Steer-by-wire system
Front wheel angle
Brushless DC motor control strategy
Hardware-in-loop test
