A vehicle-mounted emissions measurement system that continuously measures CO, CO2, HC, NOx, and A/F as concentrations and also measures exhaust gas flow rate, mass emissions and fuel consumption is presented. The limitations of the accuracy and precision of the on-board emissions system are characterized using a vehicle exhaust emissions simulator. The simulator provides accurate simulated exhaust flows in the range of 10-120 SCFM. The simulator has demonstrated in tests of injected versus recovered CVS mass emissions an overall accuracy of approximately 0.5% of the requested values. The simulated exhaust tests include both fixed and transient concentrations, as well as simulations of an EPA-75 test for a typical vehicle..


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Investigation into the Performance of an On-Board Emissions Measurement System using a Vehicle Exhaust Emissions Simulator


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE Brasil 2003 Congress and Exhibit ; 2003



    Publication date :

    2003-11-18




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Investigation into the Performance of an On-Board Emissions Measurement System Using a Vehicle Exhaust Emissions Simulator

    Oestergaard, K. / Porter, S. / Nevius, T. et al. | British Library Conference Proceedings | 2003


    Exhaust emissions simulator for verification of extremely low emission measurement systems

    Yoda,K. / Mori,N. / UUchida,K. et al. | Automotive engineering | 2007


    Exhaust Emissions Simulator for Verification of Extremely Low Emission Measurement Systems

    Yoda, K. / Mori, N. / Uchida, K. et al. | British Library Conference Proceedings | 2007


    Exhaust Emissions Simulator for Verification of Extremely Low Emission Measurement Systems

    Uchida, Kenichi / Yoda, Kimikazu / Mori, Nobuhisa et al. | SAE | 2007


    The investigation into vehicle exhaust emissions with the use of PEMS

    Gis,W. / Merkisz,J. / Pielecha,J. et al. | Automotive engineering | 2010