The invention discloses a control method and device of a conversion circuit, a controller, a system and a vehicle. The control method of the conversion circuit comprises the following steps: when a power battery connected with the high-voltage conversion circuit is converted from charging to charging completion, controlling the high-voltage conversion circuit not to work, and controlling the primary side conversion circuit and the low-voltage conversion circuit to work; and a switching tube of the primary side conversion circuit is controlled to work at a preset duty ratio, so that the conversion circuit outputs the target voltage to the low-voltage electric device from the alternating current power supply device. According to the control method of the conversion circuit provided by the embodiment of the invention, when the power battery is charged and is still connected with the external alternating current power supply device, the external alternating current power supply device is utilized to supply power to the low-voltage electric device in an auxiliary manner, and the power battery is not required to supply power any more, so that feed of the fully-charged power battery is avoided.

    本申请公开一种变换电路的控制方法、装置、控制器、系统及车辆。变换电路的控制方法包括:在高压转换电路连接的动力电池从充电中转变为充电完成时,控制高压转换电路不工作,控制原边转换电路以及低压转换电路工作;控制原边转换电路的开关管工作于预设占空比,使得变换电路从交流供电装置向低压用电器件输出目标电压。根据本申请实施例提供的变换电路的控制方法,在动力电池充电完成且仍然连接外部交流供电装置时,利用外部交流供电装置对低压用电器件辅助供电,不再需要动力电池进行供电,从而避免已充满的动力电池馈电。


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    Titel :

    Control method, device, controller and system of conversion circuit and vehicle


    Weitere Titelangaben:

    变换电路的控制方法、装置、控制器、系统及车辆


    Beteiligte:
    GAO LONG (Autor:in) / ZHANG ZHEN (Autor:in) / WANG FU (Autor:in)

    Erscheinungsdatum :

    09.05.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    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 / 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



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