The invention discloses an automobile power supply system, which comprises a battery pack, a voltage conversion unit and a power supply switching unit, and is characterized in that a first power supply end formed by all battery units of the battery pack supplies power to a low-voltage load after passing through the voltage conversion unit; in addition, the second power supply end formed by part of the battery units of the battery pack supplies power to the low-voltage load, and the first power supply end or the second power supply end is selected to supply power to the low-voltage load through the power supply switching unit, so that on one hand, a low-voltage storage battery can be omitted, and only the battery pack serving as a power battery is arranged to supply power to the low-voltage load; therefore, the use and maintenance cost is reduced; on the other hand, the first power supply end (powered by the whole battery pack) and the second power supply end (powered by part of the battery pack) can be mutually active and standby, so that influence on power supply to the low-voltage load due to partial damage of the battery pack is reduced, and stable power supply to the low-voltage load is guaranteed. The invention is widely applied to the technical field of automobiles.

    本发明公开了一种汽车供电系统,本发明包括电池组、电压转换单元和供电切换单元,本发明通过电池组的全部电池单元形成的第一供电端经过电压转换单元后为低压负载供电,而且可以通过电池组的部分电池单元形成的第二供电端为低压负载供电,通过供电切换单元选择由第一供电端或者第二供电端为低压负载供电,一方面可以免去设置低压蓄电池,仅设置作为动力电池的电池组兼为低压负载供电,从而降低使用和维护成本;另一方面第一供电端(由电池组的整体进行供电)和第二供电端(由电池组的部分进行供电)可以互为主备,降低因电池组的部分损坏而影响对低压负载的供电,保障对低压负载的供电稳定。本发明广泛应用于汽车技术领域。


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    Title :

    Automobile power supply system


    Additional title:

    一种汽车供电系统


    Contributors:
    ZHAN XIAOZHI (author) / LIN JIAN (author) / HUANG JIANHUA (author)

    Publication date :

    2024-12-06


    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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