Measurement of traction coefficient is important for both the development of traction fluids and for the design of the variator. Whilst useful in the development of traction fluids, it has been demonstrated that use of miniature ball on disc rigs could lead to inappropriate ranking of test fluids for traction performance in high power automotive variators. It is possible that further theoretical understanding of the behaviour of EHL traction contacts and better rheological models could facilitate use of such rigs to predict variator traction performance in the future. In the absence of this information, it is recommended that larger scale rigs, such as the TTR, are used in the assessment of traction fluids and their behaviour in the variator. Traction fluids are now available to allow variator operation at temperatures below -30 Grad C whilst maintaining adequate traction at high temperatures. This is recognised as a major spur in the drive towards IVT adoption for production.


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    Titel :

    Development and assessment of traction fluids for use in toroidal (IVT) transmissions


    Weitere Titelangaben:

    Entwicklung und Bewertung von Traktionsfluiden für die Anwendung in toroidalen (IVT) stufenlosen Getrieben


    Beteiligte:
    Newall, J.P. (Autor:in) / Nicolson, D.M. (Autor:in) / Lee, A.P. (Autor:in) / Evans, S.P. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    9 Seiten, 16 Bilder, 3 Tabellen, 12 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Development and Assessment of Traction Fluids for Use in Toroidal (IVT) Transmissions

    Lee, Adrian P. / Nicolson, David M. / Newall, Jonathan P. et al. | SAE Technical Papers | 2002


    Development and assessment of traction fluids for use in toroidal ( IVT ) transmissions

    Newall,J.P. / Nicolson,D.M. / Lee,A.P. et al. | Kraftfahrwesen | 2002


    Development and Assessment of Traction Fluids for Use in Toroidal (IVT) Transmissions

    Newall, J. P. / Nicolson, D. M. / Lee, A. P. et al. | British Library Conference Proceedings | 2002



    Developments in Full Toroidal Traction Drive Infinitely and Continuously Variable Transmissions

    Brockbank, C. / Burtt, D. / Society of Automotive Engineers | British Library Conference Proceedings | 2007