The invention relates to a low-voltage power supply system of a vehicle, a control method, the vehicle and a storage medium, and the low-voltage power supply system comprises a plurality of safety loads with the function safety level being ASIL D; the main power supply system with the function safety level of ASIL B and the standby power supply system with the function safety level of ASIL B supply power to the plurality of safety loads based on the standby power supply system when the main power supply system fails, and supply power to the plurality of safety loads based on the main power supply system when the standby power supply system fails; a DC/DC converter connected with a power system of the vehicle assists the main power supply system or the standby power supply system to supply power to the multiple safety loads, and when the DC/DC converter fails, the main power supply system and the standby power supply system supply power to the multiple safety loads. Based on the DC/DC converter, the two isolators, the storage battery and other devices, when the main power supply system fails due to the fact that the power supply system breaks down seriously in the automatic driving process of the vehicle, the standby storage battery can provide short-time power supply for the vehicle in time, and the safety of a user and the vehicle is ensured.

    本申请涉及一种车辆的低压电源系统、控制方法、车辆及存储介质,其中,包括:多个功能安全等级为ASIL D的安全负载;功能安全等级为ASIL B的主电源系统和功能安全等级为ASIL B的备用电源系统,在主电源系统故障时,基于备用电源系统为多个安全负载供电,在备用电源系统故障时,基于主电源系统为多个安全负载供电;与车辆的动力系统相连的DC/DC转换器辅助主电源系统或备用电源系统为多个安全负载供电,在DC/DC转换器故障时,通过主电源系统和备用电源系统为多个安全负载供电。本申请基于DC/DC转换器、两个隔离器和蓄电池等设备,使得车辆在自动驾驶过程中电源系统发生严重故障导致主电源系统失效时,备用蓄电池可及时为车辆提供短时供电,确保用户和车辆安全。


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    Title :

    Low-voltage power supply system of vehicle, control method, vehicle and storage medium


    Additional title:

    车辆的低压电源系统、控制方法、车辆及存储介质


    Contributors:
    GUO YANZHI (author) / LYU ZHIWEI (author) / ZHANG ZHAOLONG (author)

    Publication date :

    2023-10-24


    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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