The invention discloses a double-PFC charging circuit, a control method and an electric vehicle. The method comprises the following steps: determining a target working mode of the double-PFC charging circuit; adjusting the working states of the first relay, the second relay and the third relay according to the target working mode; the current and voltage conditions of the double-PFC charging circuit are detected in real time through a first current sensor, a second current sensor and a target voltage sensor, and a first current, a second current and a target voltage are obtained; according to the first current, the second current and the target voltage, judging a target working state of the double-PFC charging circuit, wherein the target working state comprises normal working and abnormal working; and when the target working state is working abnormity, adjusting the double-PFC charging circuit so as to enable the double-PFC charging circuit to continue working. By adopting the embodiment of the invention, the problem that the vehicle-mounted charging circuit does not work due to overweight load is avoided.

    本发明公开了一种双PFC充电电路、控制方法及电动汽车,该方法包括:确定双PFC充电电路的目标工作模式;根据目标工作模式调节第一继电器、第二继电器、第三继电器的工作状态;通过第一电流传感器、第二电流传感器、目标电压传感器实时检测双PFC充电电路的电流和电压情况,得到第一电流、第二电流、目标电压;根据第一电流、第二电流、目标电压判断双PFC充电电路的目标工作状态,目标工作状态包括:工作正常、工作异常;在目标工作状态为工作异常时,对双PFC充电电路进行调节,以使双PFC充电电路继续工作。采用本发明实施例,避免了因负载过重导致车载充电电路不工作的问题。


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    Title :

    Double-PFC charging circuit, control method and electric vehicle


    Additional title:

    双PFC充电电路、控制方法及电动汽车


    Contributors:
    LI MINGHAO (author) / LIU PENGFEI (author) / LAN SONGBIN (author) / WU RENHUA (author)

    Publication date :

    2024-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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