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Multiplex signal system for vehicle steering column assembly

  • US 20070193868A1
  • Filed: 02/02/2006
  • Published: 08/23/2007
  • Est. Priority Date: 02/02/2006
  • Status: Abandoned Application
First Claim
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1. A multiplex signal system for use with a vehicle steering column assembly, said system comprising:

  • a steering wheel electronic module having;

    a resistive switch network including a switch component operably coupled to a steering wheel mounted control, a resistor wired in series with said switch component, and a signal output for providing a first voltage signal representative of the state of the steering wheel mounted control, and;

    a voltage controlled oscillating device including a signal input coupled to said resistive switch network signal output for receiving said first voltage signal, and a signal output for providing an oscillating signal representative of said first voltage signal, and;

    a column electronic module coupled to the steering wheel electronic module having;

    a converter including a signal input coupled to said voltage controlled oscillating device signal output for receiving said oscillating signal, and a signal output for providing a second voltage signal representative of said oscillating signal, and;

    an electronic processing device having a signal input coupled to said frequency to voltage converter signal output for receiving said second voltage signal, wherein said electronic processing device is capable of utilizing said second voltage signal to determine the state of the steering wheel mounted control.

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