Abstract Range extender modules are one option to compensate for short drive ranges of electric vehicles. The close interaction of combustion engine and generator poses new challenges in development. A key requirement for range extender systems is to be light and virtually imperceptible in operation. High-speed electrical machines aim at increasing power density. However, their introduction in a range extender requires a gearbox. The combustion engine torque fluctuations can lead to rattle in the gearbox. The rattle can be overcome by a dual mass flywheel. An interdisciplinary model is developed and used to analyse three different range extender systems: one with a low speed generator without gearbox, one with a high-speed generator, and one with a high-speed generator and a dual mass flywheel. The efficiency was found to be higher for the system with a low speed generator, whereas the power density and the costs are beneficial for the high-speed concept. A dual mass flywheel eliminates the changes of torque direction in the gearbox. It reduces the speed fluctuations of the gearbox and generator by over 90 % compared to the low speed setup. But it increases rolling moment and subsequently chassis excitation compared to a setup with only a gearbox.


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    Titel :

    Range Extender Module Transmission Topology Study


    Beteiligte:
    Herold, Konrad (Autor:in) / Böhmer, Marius (Autor:in) / Savelsberg, Rene (Autor:in) / Müller, Alexander (Autor:in) / Schröter, Jan (Autor:in) / Karthaus, Jan (Autor:in) / Seo, Un-Jae (Autor:in) / Jacbos, Georg (Autor:in) / Hameyer, Kay (Autor:in) / Andert, Jakob (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2018-09-12


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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