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Method and system for controlling the illumination of a vehicular lamp and for monitoring the state of a switch connected thereto

  • US 5,606,308 A
  • Filed: 08/07/1995
  • Issued: 02/25/1997
  • Est. Priority Date: 08/07/1995
  • Status: Expired due to Fees
First Claim
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1. In an automotive vehicle, a method for controlling the illumination of a lamp and for monitoring a state of a switch associated therewith, the method comprising:

  • generating a control signal having a drive operating mode and a feedback operating mode;

    generating a feedback signal corresponding to the state of the switch during the feedback operating mode of the control signal;

    generating a lamp drive signal during the drive operating mode of the control signal, the lamp drive signal for illuminating the lamp based on the feedback signal; and

    providing a single multiplexed connector, the connector establishing a path for the lamp drive signal to the lamp during the drive operating mode of the control signal and establishing a path for the feedback signal from the switch during the feedback operating mode of the control signal.

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