With the High Value CVT (continuously variable transmission), it has been possible to develop a compact, lightweight and versatile transmission concept. Fuel efficiency is one central demand for the High Value CVT. So was a logical consequence to allow for hybridization. The High Value CVT without hybridization has approx. 5 % lower fuel consumption than the 5MT (5-speed manual transmission). If a 19 kW electric motor is chosen for hybridization, then fuel savings of up to 25 % can be made compared with the 5MT. All common hybrid functions such as electric operation, recuperation and boosting can be implemented with only one clutch. Especially for the torque range of up to 200 Nm under consideration here, a new small chain generation was developed that offers great potential regarding installation space, strength and acoustic properties and can thus contribute to further improving the characteristics of the High Value CVT. An analysis of existing CVT concepts shows that the implementation of the clamping force between chain and the pulley sets represents a central point in transmission optimization. The novel orifice torque sensor permits excellent approximation to the ideal clamping force curve with a relatively simple mechanical design.


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    Titel :

    The compact high value CVT transmission - Efficient, economical and innovative


    Beteiligte:
    Teubert, Andre (Autor:in) / Englisch, Andreas (Autor:in) / Götz, Andreas (Autor:in) / Lauinger, Christian (Autor:in) / Fischer, Eduard (Autor:in) / Lorenz, Elmar (Autor:in)


    Erscheinungsdatum :

    2011


    Format / Umfang :

    12 Seiten, 14 Bilder, 6 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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