The invention relates to the technical field of battery heating, and provides a battery heating circuit of an electric vehicle and a control method thereof. The battery heating circuit comprises a power battery, a first switch, a second switch, a third switch, a three-phase full-bridge inverter circuit and a driving motor connected with the three-phase full-bridge inverter circuit. One end of the first switch is connected with the anode of the power battery, and the other end of the first switch is connected with the neutral point of the driving motor; one end of the second switch is connected with the positive electrode of the power battery, and the other end of the second switch is connected with an upper bridge arm of the three-phase full-bridge inverter circuit; and one end of the third switch is connected with the negative electrode of the power battery, and the other end of the third switch is connected with the lower bridge arm of the three-phase full-bridge inverter circuit. According to the battery heating circuit of the electric vehicle, the heating cost of the power battery can be reduced, and the service life of the power battery is guaranteed.
本申请涉及电池加热技术领域,提供一种电动车的电池加热电路及其控制方法。所述电池加热电路包括:动力电池、第一开关、第二开关、第三开关、三相全桥逆变电路以及与三相全桥逆变电路连接的驱动电机;第一开关的一端与动力电池的正极连接,第一开关的另一端与驱动电机的中性点连接;第二开关的一端与动力电池的正极连接,第二开关的另一端与三相全桥逆变电路的上桥臂连接;第三开关的一端与动力电池的负极连接,第三开关的另一端与三相全桥逆变电路的下桥臂连接。本申请实施例提供的电动车的电池加热电路能够减少动力电池的加热成本,保证动力电池的寿命。
Battery heating circuit of electric vehicle and control method thereof
电动车的电池加热电路及其控制方法
2022-09-27
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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