The present invention relates to a rapid shutdown method for hybrid vehicle engine and a hybrid power system, wherein the rapid shutdown method comprises the following steps: (1) cutting off fuel supply to the engine; (2) applying counteractive machine torque T to the engine so as to decrease a engine rotating speed n; (3) when n equals to n3, decreasing T gradually and after a period of time t, T equals to zero, and n is greater than zero. The hybrid power system herein includes the engine, an integrated starter generator (ISG) motor and a controller, wherein the engine is in mechanical-drive connection with the ISG motor, the controller being in controlled connection with the engine and the ISG motor. The rapid shutdown method of the present invention ensures a smaller impact force on a torsion damper upon engine shutdown, thus effectively protecting torsion damper and engine and also increasing service lives of the torsion damper and the engine.


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    Title :

    Rapid shutdown method for hybrid vehicle engine and hybrid power system


    Contributors:
    YUE SHUBIAO (author) / CHEN HUIYONG (author) / ZHAO YUDONG (author) / SU CHANGJUN (author) / XU SHENGZHONG (author) / YANG XUEQING (author)

    Publication date :

    2015-08-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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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