The technical scheme of the invention provides a vehicle, an energy conversion device and a control method thereof. The energy conversion device comprises a first switch module, a second switch module, a bus capacitor, a bridge arm converter, a motor winding and a third switch module; the first switch module, the motor winding, a bridge arm converter and the bus capacitor are applied to a motor driving circuit and a heating circuit, so that the output torque of a motor can be realized, and the internal resistance of a battery can be heated; newly added circuit elements are avoided, so that a circuit structure is simplified; the bus capacitor participates in the charging and discharging process in the heating circuit, so that a large amount of current is prevented from passing through the bus capacitor when a battery pack discharges, and the current passing through the battery pack drops significantly, and the heating efficiency of the battery pack is improved; the connection between the third switch module and the second switch module is arranged to replace the connection between the third switch module and the battery pack, so that a wiring harness distance is shortened, and the wiring harness use cost is finally saved.

    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,能量转换装置包括第一开关模块、第二开关模块、母线电容、桥臂变换器、电机绕组、第三开关模块,通过将第一开关模块、电机绕组、桥臂变换器、母线电容服用于电机驱动电路和加热电路,既可以实现电机输出扭矩,又可以实现对电池内阻的加热,避免新增电路元件,简化了电路结构,并且通过在加热电路中使母线电容参与充放电的过程,避免了电池包放电时会有大量电流从母线电容经过,使得流经电池包的电流大幅度下降,提升了电池包的加热效率,并且通过设置第三开关模块与第二开关模块连接代替第三开关模块与电池包之间的连接,从而缩短线束距离,最终节约线束使用成本。


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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:
    LIAN YUBO (Autor:in) / LING HEPING (Autor:in) / PAN HUA (Autor:in) / YAN LEI (Autor:in) / XIE FEIYUE (Autor:in)

    Erscheinungsdatum :

    2020-09-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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