We present simulated fuel economy and emissions of city transit buses powered by conventional diesel engines and diesel-hybrid electric powertrains of varying size. Six representative city drive cycles were included in the study. In addition, we included previously published aftertreatment device models for control of CO, HC, NOx, and particulate matter (PM) emissions. Our results reveal that bus hybridization can significantly enhance fuel economy by reducing engine idling time, reducing demands for accessory loads, exploiting regenerative braking, and shifting engine operation to speeds and loads with higher fuel efficiency. Increased hybridization also tends to monotonically reduce engine-out emissions, but tailpipe (post-aftertreatment) emissions are affected by complex interactions between engine load and the transient catalyst temperatures, and the emissions results were found to depend significantly on motor size and details of each drive cycle.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Simulations of the Fuel Economy and Emissions of Hybrid Transit Buses over Planned Local Routes


    Weitere Titelangaben:

    Sae Int. J. Commer. Veh


    Beteiligte:
    Daw, C. Stuart (Autor:in) / Smith, David E. (Autor:in) / Franzese, Oscar (Autor:in) / LaClair, Tim J. (Autor:in) / Gao, Zhiming (Autor:in)

    Kongress:

    SAE 2014 World Congress & Exhibition ; 2014



    Erscheinungsdatum :

    2014-04-01


    Format / Umfang :

    22 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Simulations of the Fuel Economy and Emissions of Hybrid Transit Buses over Planned Local Routes

    Gao, Z. / LaClair, T.J. / Daw, C.S. et al. | British Library Conference Proceedings | 2014


    Exhaust Emissions And Fuel Economy Of Transit Buses - Chassis Dynamometer Test Results

    Topaloglu, T. / Elliott, D. / Turner, J. et al. | British Library Conference Proceedings | 1995


    Allocation of Buses on Interdependent Regional Bus Transit Routes

    Kalaga, R. R. / Datta, R. N. / Reddy, K. S. | British Library Online Contents | 2001


    Characterization of emissions from hybrid-electric and conventional transit buses

    McKain,D.L. / Clark,N.N. / Balon,T.H. et al. | Kraftfahrwesen | 2000


    Characterization of Emissions from Hybrid-Electric and Conventional Transit Buses

    McKain, David L. / Clark, Nigel / Moynihan, Paul J. et al. | SAE Technical Papers | 2000