Cylinder to cylinder air-fuel imbalance in an engine due to geometrical factors and component tolerances may be overcome by a system capable of individually controlling the air-fuel ratio for each cylinder. A stable feedback controller for individual cylinder air-fuel ratio was designed using dynamic models of the gas transport process and the proportional exhaust gas sensor (UEGO). The controller was tested using a proportional exhaust gas sensor located in each bank of a V6 engine. Preliminary test results indicate that automatic balancing of the air-fuel ratio to each cylinder can reduce carbon monoxide emissions compared to a feedback system controlling overall air-fuel ratio.


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    Titel :

    Automatic Control of Cylinder by Cylinder Air-Fuel Mixture Using a Proportional Exhaust Gas Sensor


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Markyvech, Craig R. (Autor:in) / Bush, Kevin J. (Autor:in) / Adams, Neil J. (Autor:in) / Dua, Sanjay (Autor:in)

    Kongress:

    International Congress & Exposition ; 1994



    Erscheinungsdatum :

    1994-03-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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