The Hyperdrive is a hybrid-electric powertrain. It is unique among other hybrid systems because of its method of engine control, and the use of higher voltages in the electrical subsystem. The unique engine control restricts internal combustion engine operation to near maximum thermodynamic efficiencies, in either diesel or gasoline types. Higher voltages are used to not only increase efficiency but also to lower cost and weight of the electrical subsystem. In practice, the Hyperdrive is unique among hybrids because it provides both a substantial reduction in fuel consumption along with substantial improvements in acceleration. The component technologies of the Hyperdrive are very similar to those in conventional powertrains, which results in competitive costs. An analysis of Hyperdrive application in an European light commercial vehicle is presented, at two voltages, 600 V and 300 V. In a 4.500 kg gross combined weight vehicle with a 600 V system, the Hyperdrive reduces fuel consumption with a diesel engine by 27%, and with a gasoline engine by 20%. The acceleration is improved by about 30% and all gradeability requirements are met. The same system at a 300 V level raises estimated cost by 50%, increases fuel usage on the ECE schedule by 11% and increases CO2 emissions by a like amount over the 600 V system.


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    Titel :

    Effects of lower battery voltage on performance and economics of the hyperdrive powertrain


    Weitere Titelangaben:

    Der Einfluß von geringeren Versorgungsspannungen aus Batterien auf das Betriebsverhalten und die Wirtschaftlichkeit des Leistungsstrangs von Hochleistungsantrieben


    Beteiligte:
    Severinsky, A. (Autor:in) / Louckes, T. (Autor:in) / Templin, R. (Autor:in) / Polletta, D. (Autor:in) / Frederiksen, F. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    20 Seiten, 12 Bilder, 7 Tabellen, 8 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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