Presented is a feed-forward controller that coordinates engine fueling with a purge event to reduce air-fuel ratio excursions. The controller employs a linear parameter-varying model to estimate the necessary changes in fuel pulse-width based on a hydrocarbon sensor located in the purge line. Synchronization between the purge fuel vapor arrival at the intake manifold and the fueling command is realized using a transport delay model. The proposed controller is experimentally validated on a Ford 5.4-L port injected engine and a 3.6-L EcoBoost engine. Significant reductions in air-fuel ratio excursions are achieved during the steady-state engine operating conditions associated with highway conditions.


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    Titel :

    Feed-forward control of purge flow in internal combustion engines



    Erschienen in:

    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    52.35 / 52.35 Kolbenkraftmaschinen



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