Vehicles continuously report real-time fuel consumption estimates over their data bus, known as the controller area network (CAN). However, the accuracy of these fueling estimates is uncertain to researchers who collect these data from any given vehicle. To assess the accuracy of these estimates, CAN-reported fuel consumption data are compared against fuel measurements from precise instrumentation. The data analyzed consisted of eight medium/heavy-duty vehicles and two medium-duty engines. Varying discrepancies between CAN fueling rates and the more accurate measurements emerged but without a vehicular trend-for some vehicles the CAN under-reported fuel consumption and for others the CAN over-reported fuel consumption. Furthermore, a qualitative real-time analysis revealed that the operating conditions under which these fueling discrepancies arose varied among vehicles. A drive cycle analysis revealed that while CAN fueling estimate accuracy differs for individual vehicles, that CAN estimates capture the relative fuel consumption differences between drive cycles within 4% for all vehicles and even more accurately for some vehicles. Thus, in situations where only CAN-reported data are available, CAN fueling estimates can provide relative fuel consumption trends but not accurate or precise fuel consumption rates.


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    Titel :

    Comparison of Vehicle-Broadcasted Fuel Consumption Rates against Precise Fuel Measurements for Medium- and Heavy-Duty Vehicles and Engines


    Weitere Titelangaben:

    Sae Int. J. Fuels Lubr
    Sae International Journal of Fuels and Lubricants


    Beteiligte:
    Ragatz, Adam (Autor:in) / Pink, Alex (Autor:in) / Wood, Eric (Autor:in) / Gonder, Jeffrey (Autor:in) / Wang, Lijuan (Autor:in)

    Kongress:

    WCX™ 17: SAE World Congress Experience ; 2017


    Erschienen in:

    Erscheinungsdatum :

    2017-03-28


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Comparison of Vehicle-Broadcasted Fuel Consumption Rates against Precise Fuel Measurements for Medium- and Heavy-Duty Vehicles and Engines

    Pink, Alex / Ragatz, Adam / Wang, Lijuan et al. | British Library Conference Proceedings | 2017


    PERFORMANCE AND FUEL CONSUMPTION EVALUATION OF HEAVY-DUTY VEHICLES WITH CNG ENGINES IN REAL APPLICATION

    F.A.R., FILHO / T.A.A., MOREIRA / D.O., SILVA | SAE Technical Papers | 2023



    Emissions and Consumption Reductions in Heavy-Duty Vehicles by Means Optimized Engines and Fuel Systems

    Larrodé, Emilio / Cea, Eugenia / Gallego, Jesús | SAE Technical Papers | 2008


    Emissions and Consumption Reductions in Heavy-Duty Vehicles by Means Optimized Engines and Fuel Systems

    Cea, E. / Larrode, E. / Gallego, J. et al. | British Library Conference Proceedings | 2008