The invention provides a direct-current low-voltage auxiliary power supply circuit, a control method thereof and a vehicle, and belongs to the technical field of vehicle charging and discharging. The direct-current low-voltage auxiliary power supply circuit comprises a charging awakening circuit which is connected in series between an auxiliary power supply interface of a vehicle interface and a vehicle controller, and when the vehicle interface is electrically connected to an external power grid, the vehicle controller is directly awakened through the charging awakening circuit, and the auxiliary power supply interface of the vehicle interface is electrically connected to the external power grid. The vehicle controller controls a low-voltage battery to supply power to the vehicle controller; the discharging circuit comprises a low-voltage battery and a discharging control circuit, the discharging control circuit is connected between the vehicle interface and the low-voltage battery in series, when the vehicle discharges, the discharging control circuit is conducted, and the low-voltage battery discharges outwards through the discharging control circuit. According to the direct-current low-voltage auxiliary power supply circuit, the control method of the direct-current low-voltage auxiliary power supply circuit and the vehicle, the power supply requirement of a vehicle domain controller and the multi-scene vehicle discharging requirement can be met.
本发明提供一种直流低压辅助供电电路及其控制方法、车辆,属于车辆充放电技术领域。所述直流低压辅助供电电路包括:充电唤醒电路,串接在车辆接口的辅助电源接口和车辆控制器之间,当所述车辆接口电性连接于外部电网时,通过所述充电唤醒电路直接唤醒所述车辆控制器,所述车辆控制器控制低压电池为所述车辆控制器供电;以及放电电路,包括低压电池和放电控制电路,所述放电控制电路串接在所述车辆接口和低压电池之间,当车辆放电时,所述放电控制电路导通,所述低压电池通过所述放电控制电路向外放电。通过本发明提供的一种直流低压辅助供电电路及其控制方法、车辆,可满足车辆域控制器的供电需求以及多场景车辆放电需求。
Direct-current low-voltage auxiliary power supply circuit, control method thereof and vehicle
一种直流低压辅助供电电路及其控制方法、车辆
2025-02-07
Patent
Electronic Resource
Chinese
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