The invention relates to the field of vehicles, and provides a vehicle power supply device, a power supply method and a vehicle, the vehicle power supply device comprises a first on-off switch arranged on a first power supply line, a second on-off switch arranged on a second power supply line, and a control module, a high-voltage power battery, a low-voltage battery and a direct current converter which are integrated in the same box body; the control module is used for entering a working mode when the first on-off switch is switched on, and controlling the second on-off switch to switch on the second power supply line if the low-voltage battery meets the power supply condition; and when the high-voltage power battery meets the corresponding power supply condition, controlling the direct-current converter to convert the voltage of the high-voltage power battery into a target voltage to charge the low-voltage battery. The direct-current converter and the high-voltage power battery are integrated in the same box body, and different switches are arranged to conduct the normal power supply circuit and the high-voltage power supply circuit respectively, so that the power supply safety of the vehicle power supply device can be guaranteed.
本发明涉及车辆领域,提供一种车辆供电装置、供电方法和车辆,包括:设置于第一供电线路的第一通断开关、设置于第二供电线路的第二通断开关以及集成于同一箱体的控制模块、高压动力电池、低压电池和直流变换器;控制模块用于在第一通断开关导通进入工作模式,若低压电池满足供电条件,控制第二通断开关导通第二供电线路;在高压动力电池满足对应的供电条件时,控制直流变换器将高压动力电池的电压转换成目标电压为低压电池充电。通过将直流变换器和高压动力电池一起集成在同一箱体内,和设置不同的开关分别导通常电供电线路和高压电供电线路,可以保障车辆供电装置的供电安全性。
Vehicle power supply device, power supply method and vehicle
车辆供电装置、供电方法和车辆
2023-05-23
Patent
Electronic Resource
Chinese
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