The invention provides an active noise reduction system of an automobile, a noise reduction method and an electric automobile, and the system comprises a knock sensor which is installed on a bridge assembly to obtain working condition vibration data; the rotating speed acquisition unit is used for acquiring driving rotating speed data of the motor; and a control unit, wherein the knock sensor and the rotating speed acquisition unit are electrically connected to the control unit. Wherein the control unit is used for acquiring target vibration order data based on the working condition vibration data and the driving rotating speed data; the control unit is further used for controlling and reducing the torque and/or the vehicle speed according to the target vibration order data so as to complete noise reduction. According to the active noise reduction system and method of the automobile and the electric automobile, the noise reduction effect of active noise reduction is good.

    本发明提供一种汽车的主动降噪系统、降噪方法及电动汽车,包括:爆震传感器,安装于电桥总成上,以获取工况振动数据;转速获取单元,用以获取电机的驱动转速数据;以及控制单元,所述爆震传感器、所述转速获取单元电性连接于所述控制单元;其中,所述控制单元用以基于所述工况振动数据、所述驱动转速数据,获取目标振动阶次数据;所述控制单元还用以根据所述目标振动阶次数据,通过控制降低扭矩和/或车速,以完成降噪。通过本发明公开的一种汽车的主动降噪系统、降噪方法及电动汽车,其主动降噪的降噪效果较好。


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    Titel :

    Active noise reduction system and noise reduction method of automobile and electric automobile


    Weitere Titelangaben:

    一种汽车的主动降噪系统、降噪方法及电动汽车


    Beteiligte:
    CHEN YEFEI (Autor:in) / XU HAO (Autor:in) / BIAN QI (Autor:in) / QI XIQUAN (Autor:in)

    Erscheinungsdatum :

    20.10.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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