As automakers begin to develop and certify vehicles that meet the California Air Resources Board LEV II and Environmental Protection Agency Tier II Regulations, emissions test cells must be designed and implemented that are capable of accurate low-level measurements. A new test cell has been installed at Ford Motor Company for use in testing vehicles that meet the stringent Partial Zero Emission Vehicle (PZEV) tailpipe requirements (NMOG = 10 mg/mile, NOx = 20 mg/mile). This test cell includes a redesigned Bag Mini-Diluter (BMD), improved analytical benches, an ultrasonic exhaust flow meter with an integrated tailpipe pressure control system, a conventional Constant Volume Sampler (CVS), and a moveable electric dynamometer. The Bag Mini-Diluter will be used as the primary sampling system for the tailpipe measurements. The technical evolution of the Bag Mini-Diluter sampling system continues at a rapid pace. As discussed in various papers in the past, the BMD has several inherent advantages over the traditional CVS system. The moveable electric dynamometer enables the test cell to be configured so that the vehicle is moved to the test equipment rather than moving the test equipment to the vehicle.


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    Title :

    Advanced emissions test site for confident PZEV measurements


    Additional title:

    Fortschrittliche Emissionsprüfzelle für Vertrauensmessungen des Partialnullemissionsfahrzeuges (PZEV)


    Contributors:
    Guenther, M. (author) / Sherman, M.T. (author) / Vaillancourt, M. (author) / Carpenter, D. (author) / Rooney, R. (author) / Porter, S. (author)


    Publication date :

    2002


    Size :

    16 Seiten, 15 Bilder, 96 Tabellen, 8 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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    Advanced Emissions Test Site for Confident PZEV Measurements

    Guenther, M. / Sherman, M. T. / Vaillancourt, M. et al. | British Library Conference Proceedings | 2002


    Advanced Emissions Test Site for Confident PZEV Measurements

    Carpenter, Dan / Guenther, Mark / Sherman, Michael T. et al. | SAE Technical Papers | 2002


    Update on Emissions Measurement Performance of a PZEV Test Cell

    Wroza, Larry / Guenther, Mark / Polster, Mark | SAE Technical Papers | 2006


    Update on emissions measurement performance of a PZEV test cell

    Guenther,M. / Wroza,L. / Polster,M. et al. | Automotive engineering | 2006