Work has been proceeding on the development of new-generation continuously variable transmissions (CVTs) since 1997. At the time JATCO introduced the world's first torque converter-type belt CVT designed for 2.0-liter class engines and incorporating electronic shift control. Thes new generation includes three belt CVTs, ranging in torque capacity from 100 to 350 Nm. The CVT3 described in this paper has the largest torque capacity of the three, handling torque levels up to a maximum of 350 Nm. These new-generation CVTs are premised on use in global markets and have been developed with the aim of achieving a more compact design, lighter weight and a wider ratio range, among other objectives. Their product appeal has been substantially enhanced based on previous experience acquired in developing a 2.0 - 2.5 liters class CVT. To improve the product appeal of these new-generation CVTs, a super ultra-flat torque converter was developed along with reducing the diameter of the primary pulley. In this connection, a new pulley pressure control system was developed, the pressure control valve was reduced in size and pressure control accuracy was enhanced, among other improvements.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development of new-generation belt CVTs with high torque capacity for front-drive cars


    Additional title:

    Entwicklung einer neuen Generation von stufenlosen Riementrieben mit großem Drehmomentbereich für Kraftwagen mit Frontantrieb


    Contributors:
    Abo, K. (author) / Sugano, K. (author) / Shibayama, T. (author) / Hayasaki, K. (author)


    Publication date :

    2003


    Size :

    11 Seiten, 14 Bilder, 5 Tabellen, 6 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development of New-Generation Belt CVTs With High Torque Capacity for Front-Drive Cars

    Sugano, Kazuhiko / Abo, Keiju / Hayasaki, Koichi et al. | SAE Technical Papers | 2003


    Development of new-generation belt CVTs with high torque capacity for front-drive cars

    Abo,K. / Sugano,K. / Shibayama,T. et al. | Automotive engineering | 2003


    2003-01-0593 Development of New-Generation Belt CVTs With High Torque Capacity for Front-Drive Cars

    Abo, K. / Sugano, K. / Shibayama, T. et al. | British Library Conference Proceedings | 2003


    A study on the torque capacity of belt CVTs for 2,0-liter and 3,5-liter front-drive cars

    Kato,Y. / Yamashita,H. / Kono,Y. et al. | Automotive engineering | 2004


    A Study on the Torque Capacity of Belt CVTs for 2.0-Liter and 3.5-Liter Front-Drive Cars

    Kato, Y. / Yamashita, H. / Kono, Y. et al. | British Library Conference Proceedings | 2004