Vehicle lane position detection system

  • US 5,351,044 A
  • Filed: 08/12/1992
  • Issued: 09/27/1994
  • Est. Priority Date: 08/12/1992
  • Status: Expired due to Term
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First Claim
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1. A highway lane position detecting system for an automotive vehicle, comprising:

  • a sensor array comprising a plurality of sensor elements mounted on the vehicle for generating an image of the highway lane ahead of the vehicle, said image comprising data values input from said plurality of sensor elements;

    a resistive network comprising a plurality of nodes connected to said sensor array for receiving said input data values and providing smoothed data values on said nodes;

    a plurality of data paths, each of said data paths including a data path switch connecting one of said sensor elements to a corresponding network node;

    means connected to each of said data paths for opening said data path switch when the difference between said sensor input data value and said smoothed data value on said corresponding node exceeds a predetermined value;

    a microprocessor connected to said resistive network for determining position of said open switches in said image; and

    said microprocessor using said open switch positions in said image for computing and outputting data in real time indicating position of the vehicle in the highway lane.

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