Engine calibrations are inexpensive methods for reducing exhaust emissions since only software modifications are required. The California Air Resources Board staff conducted a test program to investigate the effectiveness of engine calibration techniques to reduce the newly regulated aggressive driving exhaust emissions or “off-cycle” emissions. Consisting of stoichiometric and rich “bias” calibration, these engine calibration techniques were applied to fourteen late-model vehicles. The engine calibration techniques reduced the off-cycle emissions substantially on most vehicles. To comply with the proposed off-cycle standards for California low-emission vehicles and ultra-low-emission vehicles, these techniques will be a cost-effective method to reduce off-cycle emissions.


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    Titel :

    Effectiveness of Engine Calibration Techniques to Reduce Off-Cycle Emissions


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Parker, David (Autor:in) / Nolan, Kathleen (Autor:in) / Kwan, Susan (Autor:in)

    Kongress:

    International Spring Fuels & Lubricants Meeting & Exposition ; 1997



    Erscheinungsdatum :

    01.05.1997




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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