This paper describes the derivation and the validation of a two-dimensional model of a pushbelt variator. Its application enables the analysis of the dynamics and the improvement of the performance of the real system like for instance on fuel consumption. As a result of efficiency simulations a detailed distribution of losses at single contacts is presented. Parameter analyses have shown that a major fuel economy improvement can be achieved by a reduction of clamping forces. It is shown, that by lowering clamping forces all examined losses (bearings, internal pushbelt and element-pulley) will decrease. These simulations support the ongoing development for a new clamping force strategy. With this so-called 'slip control' strategy fuel consumption improvements of 5 % have been achieved.


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    Titel :

    Dynamics of pushbelt CVTs


    Weitere Titelangaben:

    Dynamik von Schubglieder-CVTs


    Beteiligte:
    Schindler, T. (Autor:in) / Geier, T. (Autor:in) / Ulbrich, H. (Autor:in) / Pfeiffer, F. (Autor:in) / Velde, A. van der (Autor:in) / Brandsma, A. (Autor:in)


    Erscheinungsdatum :

    2007


    Format / Umfang :

    8 Seiten, 7 Bilder, 7 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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