The invention provides a P2 hybrid power system and a method for slowing down impact during switching of a hybrid power mode of the P2 hybrid power system. The P2 hybrid power system comprises an engine, a motor and a transmission. The engine is connected with the motor through a CO clutch, the motor is connected with the speed changer through a speed changer clutch, the engine and the motor are respectively connected with an oil tank and a battery, the transmission is connected with a differential mechanism, and the differential mechanism outputs power to wheels through a rotating shaft. In the process that the CO clutch is gradually pressed to be connected with engine power, the torque of the engine is reduced, the buffering effect is achieved through the micro sliding friction state ofthe transmission clutch, and therefore impact is prevented from being generated at the wheel end, and the smoothness of mode switching is improved.

    本发明提供的一种P2混动系统及其切换混动模式时减缓冲击的方法,包括发动机、电动机、变速器;所述发动机和电动机之间通过CO离合器连接,电动机和变速器之间通过变速器离合器连接,所述发动机和电动机还分别与油箱和电池连接,所述变速器与差速器连接,差速器通过转轴将动力输出给车轮。本发明通过在C0离合器逐渐压紧而接入发动机动力的过程中,降低发动机转矩,并通过变速器离合器的微滑摩状态起到缓冲作用,从而避免了在轮端产生冲击,提供了模式切换的平顺性。


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    Title :

    P2 hybrid power system and method for slowing down impact during switching of hybrid power mode


    Additional title:

    一种P2混动系统及其切换混动模式时减缓冲击的方法


    Contributors:
    XIE JIA (author) / LI XIAODONG (author) / LIU XIAOHONG (author)

    Publication date :

    2021-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion




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