Procedures are in place for testing emissions and fuel economy for virtually every type of light-duty vehicle with a single-axle chassis dynamometer, which is why nearly all emissions test facilities use single-axle dynamometers. However, hybrid electric vehicles (HEVs) employ regenerative braking. Thus, the braking split between the driven and non-driven axles may interact with the calculation of overall efficiency of the vehicle. This paper investigates the regenerative braking systems of a few production HEVs and provides an analysis of their differences in single-axle (2WD) and double-axle (4WD) dynamometer drive modes. The fuel economy results from 2WD and 4WD operation are shown for varied cycles for the 2000 Honda Insight, 2001 Toyota Prius, and the 2004 Toyota Prius. The paper shows that there is no evidence that a bias in testing an HEV exists because of the difference in operating the same hybrid vehicle in the 2WD and 4WD modes.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Investigating Possible Fuel Economy Bias Due To Regenerative Braking in Testing HEVs on 2WD and 4WD Chassis Dynamometers


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    11.04.2005




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    2005-01-0685 Investigating Possible Fuel Economy Bias Due To Regenerative Braking in Testing HEVs on 2WD and 4WD Chassis Dynamometers

    Duoba, M. / Bohn, T. / Lohse-Busch, H. et al. | British Library Conference Proceedings | 2005


    Fuel Consumption Test Method of 4WD HEVs (Parti) - Application of Double Axes chassis Dynamometers

    Shimizu, K.-i. / Okamoto, T. / Nihei, M. et al. | British Library Conference Proceedings | 2006


    Fuel Consumption Test Method of 4WD HEVs (Part3) Vehicle Restraint method on Double Axes chassis Dynamometers

    Okamoto, T. / Shimizu, K.-i. / Nihei, M. et al. | British Library Conference Proceedings | 2008


    Testing with controlled-weather chassis dynamometers

    Stanke, G.W. / Sumner, H.C. / Toulmin, H.A. | Engineering Index Backfile | 1959