In 1982, we made the first prototype of the Half Toroidal CVT, it was installed in a 1600cc car and a road test was carried out on a US highway. After that prototpyes of eight types of the Half Toroidal CVT, from 12hp to 100hp, were developed for automobiles and tested under various conditions. In this paper, the mechanism of the Half Toroidal CVT is discussed and the specifications of all eight types of prototype are detailed. A hydro-electric control system was used in the vehicle test. The signals of the throttle and vehicle speed were input into the computer, and the computer calculated the best ratio of the CVT, and operated a stepping motor. The motor moved the hydraulic 4 way spool valve to change the speed ratio of the CVT, so that we could control the CVT successfully. As a result of these studies, we consider that the Half Toroidal CVT has a potential for automotive transmissions.


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    Titel :

    Prototype design and testing of the half toroidal CVT


    Weitere Titelangaben:

    Prototypentwicklung und Erprobung des stufenlosen Halbtoroidgetriebes


    Beteiligte:
    Machida, H. (Autor:in) / Kurachi, N. (Autor:in)

    Erschienen in:

    SAE-Papers ; Mar ; 1-6


    Erscheinungsdatum :

    1990


    Format / Umfang :

    6 Seiten, 13 Bilder, 1 Tabelle



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Prototype Design and Testing of the Half Toroidal CVT

    Machida, Hisashi / Kurachi, Nobuhide | SAE Technical Papers | 1990


    Prototype design and testing of the half toroidal CVT

    Machida,H. / Kurachi,N. / Nippon Seiko,JP | Kraftfahrwesen | 1990


    Design and Delivery of HMT Half-Shaft Prototype

    C. M. Tran / E. Boros / R. Soukup et al. | NTIS | 2012


    Optimizing the geometry of a half-toroidal CVT

    Akbarzadeh,S: / Zohoor,H. / Sharif Univ.of Technol.,IR | Kraftfahrwesen | 2005


    Dual-Cavity Half Toroidal CVT for Passenger Cars

    Kobayashi, Katsuya / Nakano, Masaki / Hibi, Toshifumi | SAE Technical Papers | 1992