Ford Motor Company over the past two decades has been studying various types of Infinitely Variable (I.V.) Transmissions for improving passenger car fuel economy. Of the traction drive mechanisms investigated, the Forster I.V. transmission appeared the most attractive because it reduces the complexity and manufacturing costs associated with other traction drives by virtue of its unique ratio-changing mechanism. Ford Motor Company was awarded contract E(11-1)-2674 on July 1, 1975 to study an infinitely variable traction drive transmission based upon the Forster Concept. The program plan was set-up in two phases. Phase I consisted of a design study, whereby the traction drive mechanism was experimentally and analytically evaluated and an I.V. transmission designed. Phase II, contingent on the outcome of Phase I, was to cover the build, vehicle evaluation and a manufacturing cost study. Testing and stress analysis of the flexible discs proved that the concept was not a feasible design, therefore Phase II (transmission build) was not recommended. In an effort to obtain baseline data on traction coefficients and efficiencies of traction drive transmissions a contract extension was awarded. Rigid discs with fixed geometry were designed to develop this data. (ERA citation 04:006225)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Continuously Variable Transmission. Final Technical Report


    Contributors:
    D. Hughson (author) / R. Emmadi (author) / A. Topouzian (author) / B. Lampinen (author) / C. Bhavsar (author)

    Publication date :

    1977


    Size :

    176 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    CONTINUOUSLY VARIABLE TRANSMISSION

    KUHL AMERY D / JAIN JACOB R / HICKE DAVID J et al. | European Patent Office | 2024

    Free access

    CONTINUOUSLY VARIABLE TRANSMISSION

    KOBAYASHI SHUHEI / TAKAHASHI ATSUSHI / HATANO TAKAHIRO et al. | European Patent Office | 2024

    Free access

    Continuously variable transmission

    KUHL AMERY D / JAIN JACOB R / HICKE DAVID J et al. | European Patent Office | 2022

    Free access

    CONTINUOUSLY VARIABLE TRANSMISSION

    AKEBONO HIROMICHI / OSHIMA AYUMI / SEKI JOJI et al. | European Patent Office | 2020

    Free access

    CONTINUOUSLY VARIABLE TRANSMISSION

    European Patent Office | 2017

    Free access