New generation of torque converter automatic transmissions (AT) include a large number of gears for improved fuel economy. Control requirements for such transmissions become more demanding, which calls for the development of new shift optimization and analysis tools. This paper presents two contributions to the field of transmission dynamics analysis: (i) bond graph method-based shift transient analysis, and (ii) deriving a unique set of conditions for beneficial use of a third (normally-open) clutch for any upshift or downshift, with emphasis on inertia phase. The derived conditions are examined on an example of 10-speed AT based on the clutch torque input trajectory optimization results. The examination results point out that the extra clutch has a potential of significant performance improvement for any single-transition upshift in the inertia phase, in terms of reduced vehicle jerk RMS value due to the suppressed inertia bump effect. The shift quality improvement is possible in the torque phase, as well, but it is of much smaller extent when compared to that related to the inertia phase.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Bond Graph Analysis of Automatic Transmission Shifts including Potential of Extra Clutch Control


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Deur, Joško (Autor:in) / Coric, Mirko (Autor:in) / Ranogajec, Vanja (Autor:in)

    Kongress:

    SAE 2016 World Congress and Exhibition ; 2016


    Erschienen in:

    Erscheinungsdatum :

    05.04.2016


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Bond Graph Analysis of Automatic Transmission Shifts including Potential of Extra Clutch Control

    Ranogajec, Vanja / Deur, Joško / Coric, Mirko | British Library Conference Proceedings | 2016


    Honda's 4 Speed All Clutch To Clutch Automatic Transmission

    Moriya, Hiroshi / Asatsuke, Syouji / Ohashi, Tatsuyuki et al. | SAE Technical Papers | 1998


    Honda's 4 Speed All Clutch to Clutch Automatic Transmission

    Ohashi, T. / Asatsuke, S. / Moriya, H. et al. | British Library Conference Proceedings | 1998


    Honda's 4 speed all clutch to clutch automatic transmission

    Ohashi, T. / Asatsuke, S. / Moriya, H. et al. | Tema Archiv | 1998


    Honda's 4 speed all clutch to clutch automatic transmission

    Ohashi,T. / Asatsuke,S. / Moriya,H. et al. | Kraftfahrwesen | 1998