The invention provides a battery heating system of a vehicle, a control method and the vehicle. The system comprises a multi-phase inverter, a multi-phase winding, an energy storage device and a controller. Wherein a bus of the multi-phase inverter is correspondingly connected to a bus of a vehicle battery, one end of the multi-phase winding is correspondingly connected to a bridge arm of the multi-phase inverter, a neutral point of the multi-phase winding is connected to one of the buses of the battery, the energy storage device is connected to the battery, and the controller is connected to the multi-phase inverter; the controller is configured to determine a direct current duty ratio signal and an alternating current duty ratio signal according to the real-time heating requirement of the battery, and control the action of a bridge arm of the multi-phase inverter based on the direct current duty ratio signal and the alternating current duty ratio signal. And heating the battery by using the target alternating current corresponding to the real-time heating requirement of the battery formed at the neutral point of the multi-phase winding. The DC duty ratio signal and the AC duty ratio signal jointly control the action of the multi-phase inverter, so that the battery can be heated through the modulatable duty ratio signal.
本发明提供一种车辆的电池加热系统、控制方法及车辆,该系统包括:多相逆变器、多相绕组、储能装置和控制器;其中,多相逆变器的母线对应连接于车辆电池的母线,多相绕组的一端对应连接于多相逆变器的桥臂,多相绕组的中性点连接于电池的母线中的一个,储能装置连接于电池,控制器连接于多相逆变器;控制器配置为根据电池的实时加热需求确定直流占空比信号和交流占空比信号,基于直流占空比信号和交流占空比信号控制多相逆变器的桥臂动作,以在多相绕组的中性点形成电池的实时加热需求所对应的目标交流电流为电池进行加热。本发明通过直流占空比信号和交流占空比信号共同控制多相逆变器动作,以能够通过可调制的占空比信号实现对电池的加热。
Battery heating system for vehicle, battery heating control method for vehicle, and vehicle
车辆的电池加热系统、车辆的电池加热控制方法及车辆
2025-02-11
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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