The invention relates to an intelligent power supply module for guaranteeing power supply safety of an automatic driving safety load. The intelligent power supply module comprises a power supply isolation switch, a safety power distribution unit, a first power supply chip, a second power supply chip, a power supply multiplexing chip, a first detection module, a second detection module, a first CAN transceiver chip, a second CAN transceiver chip, a shunt resistor, an FPGA, an MCU and an MOS tube driving chip. Real-time monitoring of voltage, current and temperature of a low-voltage bus and a safety load of a vehicle can be achieved, electrical faults of a low-voltage power supply system are judged through an FPGA, fault isolation and power supply switching are achieved by controlling disconnection of a power supply isolation switch, and protection of the safety load and wire harnesses of the safety load is achieved through a safety power distribution unit composed of E-Fuse. All single-point electrical faults in a low-voltage power supply system can be effectively detected and isolated, and the FPGA is used as a fault logic processing unit, so that the time required by fault isolation is reduced, and the fault tolerance time interval required by a safe load is met.

    本发明涉及一种保障自动驾驶安全负载供电安全的智能电源模块,包括:电源隔离开关、安全配电单元、第一电源芯片、第二电源芯片、电源复用芯片、第一检测模块、第二检测模块、第一CAN收发芯片、第二CAN收发芯片、分流电阻器、FPGA、MCU和MOS管驱动芯片。可实现对车辆低压母线及安全负载的电压、电流、温度的实时监测,通过FPGA来判断低压供电系统的电气故障,通过控制电源隔离开关的断开来实现故障隔离和电源切换,并通过由E‑Fuse构成的安全配电单元实现对安全负载及其线束的保护。能够对低压供电系统中所有单点电气故障进行有效检测和隔离,而且使用FPGA作为故障逻辑处理单元,减少了隔离故障所需的时间,满足安全负载所要求的故障容忍时间间隔。


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    Title :

    Intelligent power supply module for guaranteeing power supply safety of automatic driving safety load


    Additional title:

    一种保障自动驾驶安全负载供电安全的智能电源模块


    Contributors:
    WEI LI (author) / GUO BIN (author)

    Publication date :

    2024-11-12


    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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