Global innovations in automotive electronics are described, highlighting electronically controlled transmissions, suspensions, and variable-valve timing and lift. Among the developments in transmission systems is Ford's AXOD-E, engineered for optimum fuel economy and performance with consistent shift quality. General Motors' version of an electronically controlled four-speed automatic transmission, the 4T60-E, features one-way clutches on all forward speeds for smooth gear changes under all operating conditions These clutches automatically release one gear as the next one is applied. A General Motor's suspension system called Computer Command Ride uses a computer to automatically vary the damping rates of the suspension struts that control the up-and-down movement of the wheels. The system makes the damping softer or firmer, depending on vehicle speed and other driving conditions. Nissan Motors is offering a fully active suspension that uses an oil pump to produce hydraulic pressure that continuously negates the external forces-bounce (up-down), pitch (front-back), and roll (left-right)-that work to move the vehicle. Adjusting engine design to allow for low-end torque and high-end power is a trade-off that has been eliminated by a variable valve timing and lift electronic control system designed by engineers from American Honda.


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    Titel :

    Putting electronics to work in the 1991 car models


    Weitere Titelangaben:

    Kraftfahrzeugelektronik in Modellen des Jahres 1991 bei General Motors


    Beteiligte:
    Jurgen, R.K. (Autor:in)

    Erschienen in:

    IEEE Spectrum ; 27 , 12 ; 72-75


    Erscheinungsdatum :

    1990


    Format / Umfang :

    4 Seiten, 2 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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