The invention relates to a battery self-heating system, which comprises a third switch circuit, a first power supply circuit, a second power supply circuit and a bidirectional direct current conversion circuit, and is characterized in that the third switch circuit is electrically connected between the first power supply circuit and the second power supply circuit; the bidirectional direct current conversion circuit is electrically connected with the first power supply circuit and the second power supply circuit, charging and discharging are performed once through the first power supply circuit and the second power supply circuit respectively, that is, a whole vehicle power battery is charged and discharged twice, and the battery self-heating system completes one heating cycle; therefore, the heating efficiency of the battery self-heating system is improved. The invention further relates to a control method of the battery self-heating system, a power driving system, a control method of the power driving system and a vehicle.

    本申请涉及一种电池自加热系统,其包括:第三开关电路、第一电源电路、第二电源电路以及双向直流变换电路,其中,所述第三开关电路电性连接于所述第一电源电路和所述第二电源电路之间,所述双向直流变换电路与所述第一电源电路以及所述第二电源电路均电性连接,通过第一电源电路和第二电源电路各充放电一次,即整车动力电池充放电两次,所述电池自加热系统完成一次加热循环,从而提高了所述电池自加热系统的加热效率。本申请还涉及了一种电池自加热系统的控制方法、一种动力驱动系统、一种动力驱动系统的控制方法以及一种车辆。


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    Title :

    Battery self-heating system, power driving system, control method and vehicle


    Additional title:

    电池自加热系统、动力驱动系统、控制方法以及车辆


    Contributors:
    CHEN MINGWEN (author) / LIU GUOQUAN (author) / XUE PENGHUI (author) / ZHENG LEPING (author) / WANG JUNLONG (author)

    Publication date :

    2024-02-06


    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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