The invention provides a new energy automobile, a battery alternating current heating system and a heating control method. The battery alternating current heating system comprises a power battery unit, a three-phase bridge arm unit, a bus capacitor, a first switch and a motor. The bus capacitor is connected in parallel with the three-phase bridge arm unit, one parallel end is connected to the anode of the power battery unit through the first switch, and the other end is connected to the cathode of the power battery unit; the positive electrodes of the power battery units are further connected to corresponding phase windings in the motor through corresponding second switches, and an inductance adjusting unit is arranged on at least one phase winding branch and comprises an inductor and a third switch which are connected in parallel. In other words, the inductor and the switch assembly are additionally arranged in the battery alternating current heating system, the battery end alternating current effective value and the NVH performance in the heating process are improved, and the problems existing in an existing electric automobile in the low-temperature environment are solved.

    本发明提供了一种新能源汽车、电池交流加热系统及加热控制方法,该电池交流加热系统包括:动力电池单元、三相桥臂单元、母线电容、第一开关及电机;母线电容与三相桥臂单元并联,并联的一端通过第一开关连接至动力电池单元的正极,另一端连接至动力电池单元的负极;动力电池单元的正极还分别通过相应的第二开关连接至电机中对应相绕组,且存在至少一相绕组支路上设置有电感调节单元,电感调节单元包括并联连接的电感和第三开关,也即本申请能够通过在电池交流加热系统中增加电感及开关组件,提升电池端交流电流有效值和加热过程中的NVH性能,解决了现有低温环境下电动汽车存在问题。


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    Titel :

    New energy automobile, battery alternating current heating system and heating control method


    Weitere Titelangaben:

    一种新能源汽车、电池交流加热系统及加热控制方法


    Beteiligte:
    WU SIBEI (Autor:in) / WANG DONGCUI (Autor:in) / WANG JIAN (Autor:in) / LIU LU (Autor:in) / ZHONG ZHEYI (Autor:in) / WU XINYU (Autor:in)

    Erscheinungsdatum :

    29.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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