The invention relates to a 24V lithium battery heating circuit for a special vehicle and a heating strategy, and belongs to the field of special vehicle lithium batteries. The 24V lithium battery is heated only in the charging process of the 24V lithium battery, an external charging heating mode and a vehicle-mounted heating mode are included, and according to the external charging heating mode, when an external power source charges the 24V lithium battery and the temperature of the 24V lithium battery reaches the set heating temperature, a heating relay is closed, external charging equipment supplies power to a heating film, and the external charging equipment supplies power to the heating film; the 24V lithium battery is heated by the heating film; according to the vehicle-mounted heating mode, when the 24V lithium battery is charged by a non-external power source, and the charging current is larger than the threshold current and the duration time is larger than the threshold time, the heating relay is closed, the 24V lithium battery supplies power to the heating film, and the heating film heats the 24V lithium battery. According to the invention, the heating effect is achieved, and the loss of battery energy is reduced.
本发明涉及一种特种车辆用24V锂电池加热电路及加热策略,属于特种车辆锂电池领域。本发明仅在24V锂电池充电过程对24V锂电池加热,包括外接充电加热模式和车载加热模式,所述外接充电加热模式是:在外部电源对24V锂电池充电时,当24V锂电池的温度达到设定的加热温度时,闭合加热继电器,外部充电设备给加热膜供电,加热膜给24V锂电池加热;所述车载加热模式是:在非外部电源对24V锂电池充电时,当充电电流大于阈值电流且持续时间大于阈值时间时,闭合加热继电器,24V锂电池为加热膜供电,加热膜给24V锂电池加热。本发明既达到了加热效果,又减少了对电池能量的损耗。
24V lithium battery heating circuit and heating strategy for special vehicle
一种特种车辆用24V锂电池加热电路及加热策略
2024-12-24
Patent
Electronic Resource
Chinese
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Battery heating circuit, battery heating method and electric vehicle
European Patent Office | 2022
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