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 power transmission line, a second power transmission line, an ignition lock, a vehicle control unit, and a power supply controller, a high-voltage power battery, a low-voltage battery and a voltage conversion module which are integrated in the same box body; a first on-off device is arranged on the first power transmission line; a second on-off device is arranged on the second power transmission line; the power supply controller outputs a first control signal for controlling the conduction of the second power transmission line to the second on-off device when the first on-off device conducts the first power transmission line, and controls the voltage conversion module to charge the low-voltage battery based on the state information of the low-voltage battery; and when the second power transmission line is conducted and an ON-gear signal of the ignition lock is detected, the vehicle control unit outputs a second control signal for controlling the second power transmission line to be conducted to the second on-off device. The problems of low safety and reliability of vehicle power supply are solved, and the reliability and the safety are improved.
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,车辆供电装置包括第一输电线路、第二输电线路、点火锁、整车控制器以及集成于同一箱体的电源控制器、高压动力电池、低压电池和电压转换模块;第一输电线路上设置有第一通断装置;第二输电线路上设置有第二通断装置;电源控制器在第一通断装置导通第一输电线路时向第二通断装置输出用于控制第二输电线路导通的第一控制信号,基于低压电池的状态信息控制电压转换模块为低压电池充电;整车控制器在第二输电线路导通时,检测到点火锁的ON档信号时,向第二通断装置输出控制第二输电线路导通的第二控制信号。解决车辆供电安全性和可靠性低的问题,提高了可靠性和安全性。
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
Elektronische Ressource
Chinesisch
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