The invention relates to the field of electric vehicles, and provides an electric vehicle low-voltage power supply device and method and an electric vehicle. The device comprises a first start-stop control unit, a second start-stop control unit, an ignition switch, a low-voltage storage battery, a first power supply control unit and a second power supply control unit; the low-voltage storage battery and the first power supply control unit are integrated in the same box body; the first start-stop control unit is arranged in a whole vehicle distribution line of the low-voltage storage battery, and the low-voltage storage battery is connected with the first power supply control unit through the second start-stop control unit; the first power supply control unit is used for outputting a first control signal to the first start-stop control unit when the second start-stop control unit is closed; and the second power supply control unit is used for outputting a second control signal to the first start-stop control unit when the whole vehicle distribution line is switched on, and is also used for stopping outputting the second control signal when determining that the electric vehicle is powered off. The driving safety can be effectively guaranteed, and the cost of the electric vehicle is reduced.
本发明涉及电动车辆领域,提供一种电动车辆低压供电装置、方法及电动车辆,该装置包括:第一启停控制单元、第二启停控制单元、点火开关、低压蓄电池、第一供电控制单元和第二供电控制单元;低压蓄电池与第一供电控制单元集成于同一箱体;第一启停控制单元设置在低压蓄电池的整车配电线路中,低压蓄电池通过第二启停控制单元与第一供电控制单元连接;第一供电控制单元用于在第二启停控制单元闭合时输出第一控制信号至第一启停控制单元;第二供电控制单元用于在整车配电线路导通时输出第二控制信号至第一启停控制单元,还用于确定电动车辆下电时停止输出第二控制信号。本发明能够有效保证行车的安全性,且实现了电动车辆的成本的降低。
Electric vehicle low-voltage power supply device and method and electric vehicle
电动车辆低压供电装置、方法及电动车辆
2023-05-23
Patent
Electronic Resource
Chinese
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