The invention provides a vehicle, an energy conversion device and a control method thereof. The energy conversion device comprises a bridge arm converter, a motor winding and an energy storage element, the motor winding, the energy storage element and a battery are connected to form a battery heating circuit, and the control method comprises the steps that when a battery heating instruction is obtained, the bridge arm converter is controlled at the initial charging and discharging frequency, the battery and the energy storage element are charged and discharged, so that the battery is self-heated; and in the battery heating process, battery parameters are obtained, the charging and discharging frequency of the battery heating circuit is adjusted according to the battery parameters, and the bridge arm converter is controlled to adjust the current flowing through the battery heating circuit according to the charging and discharging frequency so as to adjust the heating power of the battery. According to the invention, the bridge arm converter is adjusted according to the change of the battery parameters, the charging and discharging frequency of the battery is adjusted, the heating power of the battery is controlled, and the problems of low heating efficiency and high noise of the battery in the heating process of the battery are avoided.

    本申请技术方案提供一种车辆、能量转换装置及其控制方法,能量转换装置包括桥臂变换器、电机绕组和储能元件,电机绕组、储能元件与电池连接形成电池加热电路,控制方法包括:获取到电池加热指令时,以初始充放电频率控制桥臂变换器,使电池与储能元件进行充电和放电,以使电池进行自加热;在电池加热过程中,获取电池参数,根据电池参数调节电池加热电路的充放电频率,根据充放电频率控制桥臂变换器调节流经电池加热电路中的电流,以调节电池的加热功率。本申请根据电池参数的变化调节桥臂变换器,同时调节了电池的充放电频率,实现对电池的加热功率的控制,进而避免电池加热过程中电池的加热效率低以及噪音大的问题。


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    Titel :

    Vehicle, energy conversion device and control method thereof


    Weitere Titelangaben:

    车辆、能量转换装置及其控制方法


    Beteiligte:
    LING HEPING (Autor:in) / PAN HUA (Autor:in) / XIE FEIYUE (Autor:in) / XIE CHAO (Autor:in) / WANG GANG (Autor:in)

    Erscheinungsdatum :

    2022-01-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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