轮毂电机驱动电动汽车的制动系统

Study on the Brake System of Electric Vehicle Drive Wheel Motor

轮毂电机驱动电动汽车的制动系统利用纯电机实施防抱死,主体采用液压制动进行补充的ABS控制方式,此类方式不但能确保制动时产生的热能转换成机械能,还能确保各种情况时制动的平稳度。在防抱死控制方式中使用模糊PID自整定方式,将道路辨别系统辨别的道路情况上传至PID控制机,PID控制机依据自身已设置的模糊法则针对各种情况对各参数进行随时调整,使车辆维持状况最好时的滑移率,让交通工具的制动防抱死系统随时都处于高效率的状态。

The method of using pure motor control, hydraulic brake as the general ABS control can guarantee the recovery of braking energy and ensure the stability of brake under different working con-ditions. Using fuzzy self-tuning PID control method in the ABS control strategy, the pavement coeffi-cients of road recognition system are transmitted to a PID controller which can regulate in real-time ac-cording to its internal setting fuzzy rules, so that the vehicle slip can remain in the vicinity of the opti-mal slip ratio in different conditions and realize the implementation of real-time and effective vehicle anti-lock braking.