Conventional automobile speed-warning devices require the addition of a multipole electromagnetic transducer in the transmission or the speedometer cable as a source for the speed signal. Here is a circuit that uses as the enginespeed signal the existing voltage pulses available at the primary of the spark coil. A switch in the transmission that is closed only in high gear is also needed.


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    Title :

    Circuit warns automobile driver when he exceeds preset speed


    Additional title:

    Schaltung warnt Autofahrer beim Ueberschreiten vorgegebener Geschwindigkeit


    Contributors:
    Long, D. (author)

    Published in:

    Electronic Design ; 22 , 26 ; 106


    Publication date :

    1974


    Size :

    1 Seite, 1 Bild


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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