Although many studies that use vehicle simulation models to estimate fuel economy gains for a range of hybrid vehicles have attempted to control for the comparability of performance between conventional and hybrid vehicles, different rules and simulation models have been used. The fuel economy gain estimates versus performance change for a set of those studies are reviewed, and causes for the wide range in estimates of fuel economy gain when hybridizing a gasoline-fueled vehicle are examined. Data are compiled, and relationships are discussed in detail for 18 cases: three studies of four or more cases each. The data are used to develop statistical models to evaluate the causes of variation in fuel economy gain within and across the studies. Three studies (each evaluating one case only) that predict lower fuel economy gains than the first three are also examined. Explanations and adjustments are provided to illustrate that the differences across the studies are less than a cursory reading would imply. Most notably, potential fuel economy gain via hybridization increases as the 0-to-60-mph times of the compared vehicle pairs drop (and power-toweight ratios increase). Also a reduction in engine power is necessary to obtain large benefits. The most complex statistical model developed indicates that an increase in electric motor power relative to engine power improves the fuel economy of hybrids, up to a point. Finally, results indicate that continuous top-speed and grade-climbing ability will drop if a less powerful engine is used.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hybridizing with Engine Power Reduction


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2002-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    PART 1 - ENERGY - Hybridizing with Engine Power Reduction

    Santini, Danilo J. | Online Contents | 2002


    Metaheuristics Hybridizing Various Components

    Labadie, Nacima / Prins, Christian / Prodhon, Caroline | Wiley | 2016


    A Numerical Study on Improving Fuel Efficiency of Natural Gas Vehicles by Hybridizing the Engine with a Motor (20065292)

    Amari, Y. / Kitazawa, O. / Kusaka, J. Daisho, Y. et al. | British Library Conference Proceedings | 2006


    A Numerical Study on Improving Fuel Efficiency of Natural Gas Vehicles by Hybridizing the Engine with a Motor (20065292)

    Amari, Y. / Kitazawa, O. / Kusaka, J. Daisho, Y. et al. | British Library Conference Proceedings | 2006