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LANE MONITORING WITH ELECTRONIC HORIZON

  • US 20140379164A1
  • Filed: 06/20/2013
  • Published: 12/25/2014
  • Est. Priority Date: 06/20/2013
  • Status: Active Grant
First Claim
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1. Apparatus for a vehicle operated on a roadway having lane markers, comprising:

  • an optical sensor providing optical data of the roadway;

    a first lane model stored in an electronic memory in response to detected lane markers in the optical data;

    an electronic horizon system tracking a position of the vehicle and providing roadway data in response to the position;

    a second lane model stored in the electronic memory in response to the roadway data;

    a confidence checker comparing a discrepancy between the first and second lane models to a threshold in order to determine a confidence level; and

    an output selector that selects the first lane model when lane markers are detected in the optical data, and that selects the second lane model if the lane markers are not detected in the optical data and the confidence level is greater than a predetermined level.

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