Traction drive CVT for motorcycle

H. Machida, Y. Ichihara

    Research output: Contribution to journalConference articlepeer-review

    1 Citation (Scopus)


    We selected a Half Toroidal CVT which has low spin of the traction contact area and tried to apply it to the motorcycle automatic transmissions. The contact area in a big traction drive is an ellipse of about 10mm2, and the maximum Hertz pressure is about 3.0GPa. The traction fluids pass through the zone in about 2.0×10-5 sec. So the performance of traction drive depends to a large extent on the rheological properties of the fluid in the Elasto-Hydrodynamic Lubrication contact. It's life, efficiency and drivability were also tested and good test results were obtained in all test conditions. These motorcycles were tested on a High Way and their drivabilities proved very satisfactory.

    Original languageEnglish
    Pages (from-to)663-670
    Number of pages8
    JournalProceedings - Society of Automotive Engineers
    Publication statusPublished - 1990 Dec 1
    EventEighteenth Fisita Congress - The Promise of New Technology in the Automotive Industry - Torino, Italy
    Duration: 1990 May 71990 May 11

    ASJC Scopus subject areas

    • General Engineering


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