The invention discloses a vehicle-mounted domain controller power supply circuit and a control method, and relates to the technical field of vehicles. The vehicle-mounted domain controller power supply circuit comprises a first voltage comparator, a second voltage comparator and a switch control sub-circuit, the input end of the first voltage comparator is connected with a first power supply, and the output end of the first voltage comparator is connected with the switch control sub-circuit; the input end of the second voltage comparator is connected with a second power supply, and the output end of the second voltage comparator is connected with the switch control sub-circuit; the switch control sub-circuit is also connected with the first power supply, the second power supply and the plurality of vehicle-mounted domain controllers; the first voltage comparator compares a first voltage provided by the first power supply with a voltage threshold value, and the second voltage comparator compares a second voltage provided by the second power supply with the voltage threshold value, so as to control the on-off of the switch in the switch control sub-circuit to supply power to the plurality of vehicle-mounted domain controllers. The complexity of a power management system and thermal management can be reduced, and the cost is reduced.

    本申请公开了一种车载域控制器供电电路及控制方法,涉及车辆技术领域。车载域控制器供电电路包括:第一电压比较器、第二电压比较器、开关控制子电路,第一电压比较器的输入端与第一电源连接,第一电压比较器的输出端与开关控制子电路连接;第二电压比较器的输入端与第二电源连接,第二电压比较器的输出端与开关控制子电路连接;开关控制子电路还与第一电源、第二电源和多个车载域控制器连接;第一电压比较器比较第一电源提供的第一电压与电压阈值的大小,第二电压比较器比较第二电源提供的第二电压与电压阈值的大小,以控制开关控制子电路中开关的通断对多个车载域控制器进行供电。能够降低电源管理系统和热管理复杂度,降低成本。


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    Title :

    Vehicle-mounted domain controller power supply circuit and control method


    Additional title:

    车载域控制器供电电路及控制方法


    Contributors:
    MA XIANGYU (author) / FENG XING (author) / LI QI (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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