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:

    Wirksamkeit von Motorkalibrierungsverfahren für die Minderung der Fahr-Abgasemissionen


    Beteiligte:
    Kwan, S. (Autor:in) / Parker, D. (Autor:in) / Nolan, K. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    9 Seiten, 5 Bilder, 6 Tabellen, 4 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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