The invention provides a power takeoff control method and an electric automobile, which belong to the technical field of electric automobiles. The method comprises the steps that a whole vehicle readysignal, a motor rotating speed, a gearbox output rotating speed and a power takeoff switching signal are obtained; and when the whole vehicle ready signal is effective, the motor rotating speed is smaller than a first set rotating speed, the gearbox output rotating speed is smaller than a second set rotating speed, and the power takeoff switching signal is effective, the power takeoff is controlled to be engaged with the motor. As the power takeoff is meshed with the motor through meshing of the power takeoff and the intermediate shaft of the gearbox, and the output shaft of the motor is meshed with the intermediate shaft of the gearbox all the time, when the rotating speed of the motor is controlled not to be zero, the intermediate shaft of the gearbox is in a moving state, and comparedwith the situation that the intermediate shaft of the gearbox is in a static state when the rotating speed of the motor is zero, the power takeoff and the middle shaft of the gearbox can be meshed more easily, that is, the power takeoff and the motor are meshed more easily, so that the probability that the power takeoff and the motor are successfully meshed is increased, and the power takeoff canwork normally.

    本发明提供一种取力器控制方法和电动汽车,属于电动汽车技术领域。该方法包括:获取整车ready信号、电机转速、变速箱输出转速和取力器开关信号;当所述整车ready信号有效、所述电机转速小于第一设定转速、所述变速箱输出转速小于第二设定转速且所述取力器开关信号有效时,控制取力器与电机啮合。由于取力器与电机啮合通过取力器与变速箱的中间轴啮合来实现,又由于电机的输出轴与变速箱的中间轴始终啮合,那么当控制电机转速不为0时,变速箱的中间轴会处于运动状态,与电机转速为0时变速箱的中间轴处于静止状态相比,取力器与变速箱的中间轴啮合会更容易,即取力器与电机啮合更容易,从而增加了取力器与电机成功啮合的几率,使取力器能够正常工作。


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    Titel :

    Power takeoff control method and electric automobile


    Weitere Titelangaben:

    一种取力器控制方法和电动汽车


    Beteiligte:
    LI BIN (Autor:in) / LIU ZHONGZHENG (Autor:in) / DONG LONGFEI (Autor:in) / LYU ZHENWEI (Autor:in) / WANG JIANQI (Autor:in) / LI KEPENG (Autor:in) / LIU JUANJUAN (Autor:in) / LI MAN (Autor:in)

    Erscheinungsdatum :

    2021-02-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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