Methods and systems are provided for improving engine restart operations responsive to a heavy operator pedal tip-in. Engine torque and disconnect clutch capacity are controlled during cranking and engine speed run-up so as to provide excess torque to accelerate the engine to the motor speed and prepare the engine for elevated torque delivery after the engine connects to the driveline. At a time of connecting the engine to the driveline, the engine torque is transiently reduced to avert NVH issues related to engine speed overshooting or undershooting the target speed.


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    Titel :

    Methods and systems for starting an engine


    Beteiligte:
    WANG XIAOYONG (Autor:in) / YAMAZAKI MARK STEVEN (Autor:in) / DOERING JEFFREY ALLEN (Autor:in) / LIANG WEI (Autor:in) / JOHRI RAJIT (Autor:in) / KUANG MING LANG (Autor:in)

    Erscheinungsdatum :

    2017-05-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / F02P IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES , Zündung von Brennkraftmaschinen mit innerer Verbrennung, ausgenommen Kompressionszündung



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