Slip-controlled lock-up clutch systems are very efficient and greatly improve fuel economy. On the other hand, these systems can cause unstable vibrations including those known as “shudder vibrations”.In this study, the authors made a theoretical analysis of these unstable vibrations to clarify the fundamental frictional properties of automatic transmission fluids (ATFs) required for slip-controlled lock-up clutch systems.Based on this analysis, we established lubricant technology having a sufficient anti-shudder property and high torque capacity. Further, we developed a new test apparatus to evaluate the anti-shudder durability for lubricant development.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development of Automatic Transmission Fluid for Slip-Controlled Lock-Up Clutch Systems


    Additional title:

    Sae Technical Papers



    Conference:

    1995 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1995



    Publication date :

    1995-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development of automatic transmission fluid for slip-controlled lock-up clutch systems

    Kugimiya,T. / Mitsui,J. / Yoshimura,N. et al. | Automotive engineering | 1995


    Anti-shudder mechanism of automatic transmission fluid additives at slip-controlled lock-up clutch

    Tohyama,M. / Ohmori,T. / Ueda,F. et al. | Automotive engineering | 1999


    Model-based application of a slip-controlled converter lock-up clutch on automatic car transmissions

    Jauch,F. / Zahnradfabrik Friedrichshafen,ZF,DE | Automotive engineering | 1999


    Controlled Slip Converter Lock-up Clutch for the New BMW/Series

    Kuecuekay, F. / Bock, C. | British Library Online Contents | 1994