This paper describes the Nissan R01A model automatic transmission, focusing in particular on the basic design concept, control system and the various control techniques it incorporates. This 4-speed transmission, installed in Nissan's rear-wheel-drive vehicles, was designed from the ground up and significant construction and control mechanism improvements were made over the former conventional model. With a compact gear arrangement consisting of two sets of planetary gears, this transmission features a new electro-hydraulic control system which not only provides optimum shifting and lock-up points, but also modulates the hydraulic pressure electronically to achieve superior shift quality. Control over the transmission is integrated with engine control to deliver improved driveability and better fuel economy. Different transmission variations have been developed to create a versatile lineup for rear-wheel-drive vehicles. A high torque capacity version, built with the same basic construction and control system as the standard model, is available along with a PTO-equipped version intended for commercial vehicle application. This paper also presents a brief introduction of this R01A series.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Nissan Electronically Controlled Four Speed Automatic Transmission


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1989



    Publication date :

    1989-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Nissan electronically controlled four speed automatic transmission

    Shinohara,M. / Shibayama,T. / Ohtsuka,K. et al. | Automotive engineering | 1989


    Development of Nissan Microprocessor Controlled Four Speed Lockup Automatic Transmission

    Suga,M. / Morimoto,Y. / Suzuki,T. et al. | Automotive engineering | 1983


    Development of NISSAN microprocessor controlled four speed lockup automatic transmission

    Suga, M. / Morimoto, Y. / Suzuki, T. et al. | Tema Archive | 1983


    Electronically-controlled five-speed automatic transmission

    Yamaguchi,J. / Nissan Motors,JP | Automotive engineering | 1989


    Shift quality control of an electronically controlled four speed automatic transmission

    Hiramatsu,T. / Naruse,T. / Mitsubishi Motors,JP | Automotive engineering | 1986