In order to achieve SULEV emission legislation the overall efficiency of the exhaust gas aftertreatment system has to be increased. Beside engine-out emissions and air/fuel ratio control especially during cold start and during transient driving conditions the catalyst has to be optimized regarding cold start and efficiency under warmed-up conditions. The paper will show emission test results of different catalyst designs (various cell-densities and foil thicknesses, cone-shape catalysts and electrically heated catalysts) measured on a dynamic engine test bench. With an optimized SULEV catalyst system emission tests in a close-coupled position of a mid-size passenger car will be presented.


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    Titel :

    Improved Catalyst Systems for SULEV Legislation: First Practical Experience


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Holy, G. (Autor:in) / Hirth, P. (Autor:in) / Brück, R. (Autor:in)

    Kongress:

    SAE 2000 World Congress ; 2000



    Erscheinungsdatum :

    06.03.2000




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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