The purpose of vehicle preconditioning is to provide a relatively consistent starting base for all vehicles involved in emission testing. This starting base is intended to prepare the vehicle so that it tends to simulate a real-life condition that an average vehicle would normally experience in its day-to-day operation. Five vehicles, representing different engine-fuel tank configurations, were used in evaluating the effect of two vehicle preconditioning driving sequences on diurnal losses (as measured by the SHED technique) and exhaust emissions. One prep cycle was that required by the 1975 FTP, consisting of driving the vehicle over a pre-established road route followed by a dynamometer drive. The other prep cycle consisted of a dynamometer cycle only. Three tests per sequence per vehicle were conducted. The results of this testing support an earlier EPA study with regard to exhaust emissions.


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    Titel :

    In-House Test Program Report No. 1-Vehicle Preconditioning: AMA+LA-4


    Beteiligte:
    T. Rarick (Autor:in) / G. M. Wilson (Autor:in)

    Erscheinungsdatum :

    1975


    Format / Umfang :

    25 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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