The invention provides a charging circuit, a control method of the charging circuit and an electric vehicle, and relates to the technical field of electric vehicles, the system comprises a first switch, a second switch, a driving motor and a driving motor control unit; the first switch is connected with a direct-current charging port and a neutral point of the driving motor. When the first switch is switched on and the second switch is switched off, a winding inductor in the driving motor and the driving motor control unit form a booster circuit, and the booster circuit charges a power battery after boosting the voltage of the direct current input into the direct current charging port; when the first switch is switched off and the second switch is switched on, the direct-current charging port is directly connected with the power battery, and direct current input into the direct-current charging port charges the power battery. Due to the fact that no booster circuit is arranged, large-power parts in the electric vehicle are reduced, the number of components in the whole charging circuit is small, the circuit is simple, the space occupancy rate is reduced, and meanwhile the cost of the electric vehicle is well reduced.

    本发明提供了一种充电电路、充电电路的控制方法及电动汽车,涉及电动车技术领域,所述系统包括:第一开关、第二开关、驱动电机以及驱动电机控制单元;第一开关与直流充电口和驱动电机的中性点分别连接;第一开关闭合且第二开关断开时,驱动电机中的绕组电感与驱动电机控制单元构成升压电路,升压电路将输入直流充电口的直流电的电压升压后,为动力电池充电;第一开关断开且第二开关闭合时,直流充电口与动力电池直接连接,输入直流充电口的直流电为动力电池充电。本发明由于没有升压电路,减少了电动汽车中的大功率零部件,整个充电电路中元器件很少,电路线路简洁,减少了空间占用率的同时,还极好的降低了电动汽车的成本。


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    Title :

    Charging circuit, control method of charging circuit and electric vehicle


    Additional title:

    一种充电电路、充电电路的控制方法及电动汽车


    Contributors:
    ZHANG MING (author)

    Publication date :

    2021-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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