The invention provides an electric vehicle braking energy recovery control system and method, the system comprises an electronic brake booster, a vehicle control unit, a battery manager, a motor controller and an ESC, and the vehicle control unit is in communication connection with the electronic brake booster, the battery manager, the motor controller and the ESC; the control method includes influences of the vehicle speed, the battery SOC and the target braking force, participation of motor braking can be reduced when the vehicle speed is low and the battery SOC is too high or too low, energy recovery can be stopped when large-intensity emergency braking is carried out, the method can improve the braking energy recovery efficiency, the service life of the battery is prolonged, and the method is suitable for popularization and application. And the driving stability and the braking safety of the vehicle are improved.
本发明提供了一种电动汽车制动能量回收控制系统和方法,该系统包括电子制动助力器、整车控制器、电池管理器、电机控制器和ESC,所述整车控制器分别与电子制动助力器、电池管理器、电机控制器、ESC通信连接;控制方法包括了车速、电池SOC和目标制动力大小的影响,在车速较低以及电池SOC过高或过低时,可减少电机制动的参与,在大强度紧急制动时,可关闭能量回收,本发明提供的方法可提高制动能量回收的效率,延长电池的使用寿命,提高车辆的行驶稳定性和制动安全性。
Electric automobile braking energy recovery control system and method
一种电动汽车制动能量回收控制系统和方法
2022-05-13
Patent
Electronic Resource
Chinese
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