The invention relates to the field of electric vehicles, and provides a low-voltage power supply device and method for an electric vehicle and the electric vehicle, and the device comprises a first relay, a power switch, an ignition lock, a second relay, a third relay, a low-voltage storage battery and a conversion control module, the first relay is arranged in a first power supply loop of the low-voltage storage battery, and the output end of the first power supply loop is connected with the first electric equipment and the second electric equipment through the second relay and the third relay respectively; the first electric equipment is a control unit related to driving, and the second electric equipment is a control unit related to non-driving; when the ignition lock is turned to an ON gear, the second relay and the third relay are controlled to be closed; the conversion control module is used for controlling on and off of the first relay when the second power supply loop is conducted, and the second power supply loop is used for supplying power to the conversion control module. The cost of the electric vehicle can be greatly reduced, and the driving safety of the electric vehicle is improved.

    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,该装置包括第一继电器、电源开关、点火锁、第二继电器、第三继电器以及集成于同一箱体的低压蓄电池和转换控制模块;第一继电器设置在低压蓄电池的第一供电回路中,第一供电回路的输出端分别通过第二继电器和第三继电器与第一用电设备和第二用电设备连接;第一用电设备为行车相关的控制单元,第二用电设备为非行车相关的控制单元;点火锁打到ON档时用于控制第二继电器和第三继电器闭合;转换控制模块用于在第二供电回路导通时控制第一继电器的闭合和断开,第二供电回路用于为转换控制模块供电。本发明能够极大降低电动车辆的成本,且提高了电动车辆的行车安全性。


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    Title :

    Electric vehicle low-voltage power supply device and method and electric vehicle


    Additional title:

    电动车辆低压供电装置、方法及电动车辆


    Contributors:
    WANG RUI (author) / WEI CHANGHE (author) / TIAN FEIYUN (author)

    Publication date :

    2023-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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