The embodiment of the invention provides a vehicle pure electric braking control method, a device and a system, and the method comprises the steps: the torque processing of current key data and instruction data transmitted by a network system is carried out, and a final electric braking torque instruction value is generated; vector control is carried out on the final electric torque instruction value, the determined rotor operation frequency, the flux linkage observation value, the motor parameters, the direct current side voltage sampling value and the alternating current side current sampling value, and slip frequency and modulation degree are generated; compensation calculation is carried out on the slip frequency, the rotor operation frequency and the obtained phase angle tracking parameters through a phase angle PI regulator, and a final motor stator frequency given value is generated; based on a dead zone compensation algorithm of a volt-second balance principle, according to a modulation degree and the final motor stator frequency given value, an inverter driving pulse is generated to control pure electric braking of the vehicle, so that the low-speed braking performance of the vehicle is more controllable, the parking precision and the riding comfort of passengers are greatly improved, meanwhile, the loss can be reduced, and energy is saved; the driving noise is reduced.
本发明实施例提供了一种车辆纯电制动控制方法、装置和系统,包括:对当前关键数据和网络系统发送的指令数据进行转矩处理,生成最终电制转矩指令值;对最终电制转矩指令值、确定出的转子运行频率、磁链观测值、电机参数、直流侧电压采样值和交流侧电流采样值进行矢量控制,生成转差频率和调制度;通过相角PI调节器,对转差频率、转子运行频率和获取的相角追踪参数进行补偿计算,生成最终电机定子频率给定值;基于伏秒平衡原理的死区补偿算法,根据调制度和最终电机定子频率给定值,生成逆变器驱动脉冲,以控制车辆纯电制动,使车辆低速制动性能更加可控、大幅度提高停车精度及乘客的乘坐舒适度,同时还可以降低损耗,节约能源,减小行车噪音。
Vehicle pure electric braking control method, device and system
一种车辆纯电制动控制方法、装置和系统
2022-02-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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