The invention belongs to the technical field of automobiles, and provides a vehicle power supply method, a vehicle power supply framework and an automobile, M electric quantity sampling signals are obtained by collecting electric parameters of M battery units in a power battery pack, and N battery units are determined as low-voltage power distribution units from the M battery units according to the M electric quantity sampling signals, n low-voltage power distribution units are controlled to be connected in series to form a low-voltage battery pack according to the whole vehicle power-off signal, and the output end of the low-voltage battery pack is controlled to be connected to a low-voltage output interface, so that a plurality of battery units in the power battery pack can be selected to form low-voltage power output to supply power to a whole vehicle controller, and the purpose of removing a small storage battery of the whole vehicle is achieved; and the problem that the whole vehicle controller cannot be awakened to unlock the whole vehicle due to power shortage of the small storage battery in the current vehicle power supply scheme is also avoided.

    本申请属于汽车技术领域,提供了一种车辆供电方法、车辆供电架构以及汽车,通过采集动力电池组中M个电池单元的电参数得到M个电量采样信号,根据M个所述电量采样信号从M个电池单元中确定出N个电池单元为低压配电单元,根据整车下电信号控制N个低压配电单元串联形成低压电池组,并控制低压电池组的输出端连接至低压输出接口,从而可以通过选择动力电池组中若干电池单元组成低压电源输出为整车控制器供电,达到去掉整车小电瓶的目的,也避免了目前的汽车供电方案存在的由于小电瓶亏电无法唤醒整车控制器进行整车解锁的问题。


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    Title :

    Vehicle power supply method, vehicle power supply framework and automobile


    Additional title:

    一种车辆供电方法、车辆供电架构以及汽车


    Contributors:
    HONG PENG (author)

    Publication date :

    2024-01-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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