The invention discloses a low-voltage power supply management system of an electric automobile and the electric automobile. The low-voltage power supply management system comprises a controller, a direct-current converter, a main low-voltage power supply loop and an auxiliary low-voltage power supply loop, the main low-voltage power supply loop comprises a load unit and a first power supply unit; one end of the DC converter is connected with the load unit and the anode of the first power supply unit. The auxiliary low-voltage power supply loop comprises an electronic relay and a second power supply unit; one end of the direct current converter is also respectively connected with the electronic relay and the positive electrode of the second power supply unit; and the controller is configured to control the operation states of the main low-voltage power supply loop and the auxiliary low-voltage power supply loop according to the obtained safety signal. According to the low-voltage power supply management system of the electric automobile and the electric automobile provided by the embodiment of the invention, the low-voltage power supply management system with a specific structure is designed, and the two power supply loops are controlled according to the safety signals monitored in real time, so that the energy management of the low-voltage power supply is improved from a QM level to an ASIL B level.

    本发明公开了一种电动汽车的低压电源管理系统及电动汽车,包括控制器、直流转换器、主低压电源回路和辅助低压电源回路;主低压电源回路包括负载单元和第一电源单元;直流转换器的一端分别与负载单元、第一电源单元的正极连接;辅助低压电源回路包括电子继电器和第二电源单元;直流转换器的一端还分别与所述电子继电器、第二电源单元的正极连接;控制器被配置为根据获取到的安全信号,对主低压电源回路和所述辅助低压电源回路的运行状态进行控制。本发明实施例提供的电动汽车的低压电源管理系统及电动汽车,通过设计特定结构的低压电源管理系统,并根据实时监控到的安全信号对两个电源回路进行控制,将低压电源能量管理从QM等级提升至ASIL B等级。


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    Title :

    Low-voltage power supply management system of electric automobile and electric automobile


    Additional title:

    一种电动汽车的低压电源管理系统及电动汽车


    Contributors:
    LI SUWEN (author)

    Publication date :

    2022-03-22


    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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