What gear am I in?

Discussion in 'General Motoring' started by JXStern, Jan 26, 2004.

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  1. JXStern

    Jerry Albro Guest

    From Shop manual 1997 accord:

    Shift Control Solenoid
    A B
    1st OFF ON
    2nd ON ON
    3rd ON OFF
    4th OFF OFF

    You could simply use these signals to drive a couple LED's, or better
    yet make a karnaugh map to map these inputs to a seven segment display
    to show 1 2 3 4 as needed. Yes, I have thought of it and yes I am a geek
    :) Also note that the above pattern is a 2 bit Gray Code. This pattern
    ensures that only one bit changes at a time as it sequences. In fact, a
    gray code to 7 segment circuit seems to be a classic engineering
    homework problem, so there are many references to this on the web but
    fewer answers :) The remainder is left as an exercise for the student.

    - Jerry
     
    Jerry Albro, Jan 30, 2004
    #21
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