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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    Title :

    Feed-forward control of purge flow in internal combustion engines




    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    52.35 Kolbenkraftmaschinen / 52.35



    Feed-forward control of purge flow in internal combustion engines

    Zamanian,F. / Franchel,M.A. / Grigoriadis,K.M. et al. | Automotive engineering | 2016



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