As emissions regulations become more stringent, an efficient and effective method of rig-based transient engine calibration becomes increasingly desirable. It is known that approximately 80% of total drive-cycle exhaust emissions can be produced in the initial warm-up phase before catalyst ‘light-off’ is achieved and catalyst conversion efficiency increases. During this period, there is a clear trade-off that can be made in the strategy between the amount of thermal energy that is delivered to the catalyst and the amount of exhaust emissions produced during the time before catalyst ‘light-off’ is achieved. This paper examines whether an automated expert-knowledge based decision-making methodology can be used to find a satisfactory trade-off between these two parameters whilst reducing the iteration time and level of input required from a calibration engineer.


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    Titel :

    Cold Start Emissions Optimisation Using an Expert Knowledge Based Calibration Methodology


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    McNicol, A. C. (Autor:in) / Brace, C. J. (Autor:in) / Figueroa-Rosas, H. (Autor:in) / Ward, M. C. (Autor:in) / Watson, P. (Autor:in) / Ceen, R. V. (Autor:in)

    Kongress:

    SAE 2004 World Congress & Exhibition ; 2004



    Erscheinungsdatum :

    2004-03-08




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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