The invention relates to a combined braking system and method and an electric vehicle. The combined braking system comprises a brake pedal, a driver control box, a brake controller, a hydraulic brakesystem, a battery management system, a power battery, a central controller, a state acquisition device, a hub motor controller and four hub motors. The central controller carries out operation according to signals of the brake pedal and vehicle states collected by a state collecting device to obtain the torque of electric braking and hydraulic braking, then electric braking signals are sent to thehub motor controller, the sensor transmits monitoring data back to the hub motor control unit in real time, the hub motor control unit calculates motor control voltage and frequency in real time andapplies the motor control voltage and frequency to an inverter, so that each hub motor operates at a given negative acceleration speed and torque, and electric braking is realized; and the hydraulic braking signal is sent to a braking controller, the braking controller controls a hydraulic braking system to achieve hydraulic braking, and the two act together to complete the braking function of thevehicle.
本发明涉及一种联合制动系统、方法及电动车,该联合制动系统包括:制动踏板、驾驶员控制盒、制动控制器、液压制动系统、电池管理系统、动力电池、中央控制器、状态采集装置、轮毂电机控制器和四个轮毂电机;中央控制器根据制动踏板的信号和状态采集装置采集到的车辆状态进行运算,得到电制动与液压制动的力矩大小,然后将电制动信号发动给轮毂电机控制器,传感器将监测数据实时传回轮毂电机控制单元,由轮毂电机控制单元实时解算电机控制电压和频率,施加给逆变器,使每台轮毂电机运行于给定的负加车速和转矩,实现电制动;将液压制动信号发送给制动控制器,制动控制器控制液压制动系统实现液压制动;二者共同作用完成车辆的制动功能。
Combined braking system and method and electric vehicle
联合制动系统、方法及电动车
2021-03-02
Patent
Electronic Resource
Chinese
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