A study has been carried out, aimed at improving passenger car economy by better matching of the engine and transmission. Vehicle simulation was carried out which showed that a reduction of 25% in fuel consumed is theoretically possible. Engine development was carried out which showed that the results of valve timing changes were small, but the four valve cylinder head tested gave better economy than the two valve cylinder head over the whole engine operating range. Resulting from a study of transmissions, it is recommended that two wide span transmissions be developed - a six speed semi automatic and an eight speed fully automatic.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Engine Transmission Matching


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1981



    Publication date :

    1981-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Engine Transmission Matching

    Thring,R.H. / Ricardo Consulting Engineers,GB | Automotive engineering | 1981



    One approach to engine transmission matching

    Spence,J.H. / Self Changing Gears,GB | Automotive engineering | 1986



    Optimal matching between automobile transmission parameters and engine

    Wei-Xin,L. / Wei,L. / Tsinghua Univ.,CN | Automotive engineering | 1989