Driver assistance system for a vehicle

  • US 9,463,744 B2
  • Filed: 01/18/2016
  • Issued: 10/11/2016
  • Est. Priority Date: 07/31/2001
  • Status: Active Grant
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First Claim
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1. A driver assistance system for a vehicle, said driver assistance system comprising:

  • a forward facing camera disposed at or in a vehicle equipped with said driver assistance system, said forward facing camera having a field of view that, when the equipped vehicle is traveling on a road, encompasses the road ahead of and to the left of the equipped vehicle;

    wherein the equipped vehicle is a left-hand drive vehicle;

    a control disposed at or in the equipped vehicle and comprising an image processor;

    wherein image data captured by said forward facing camera is processed by said image processor;

    wherein said image processor processes data at a processing speed of at least about 30 MIPS;

    wherein said control receives vehicle data relating to the equipped vehicle via a vehicle bus of the equipped vehicle, said vehicle data including vehicle speed and vehicle steering angle;

    wherein, via processing by said image processor of image data captured by said forward facing camera, said control is operable to detect a road marking on the road being traveled by the equipped vehicle and to the left of the equipped vehicle;

    wherein said image processor utilizes a lane marker type recognition algorithm to classify the detected road marking to be one of (i) a single solid line, (ii) a single dashed line and (iii) double lines;

    wherein, responsive to classification by the lane marker type recognition algorithm of the detected road marking to be double lines and not to be either a single solid line or a single dashed line, (a) said control determines ability to pass safely to the left of the equipped vehicle when the double lines are determined to be a solid line and an adjacent dashed line with the adjacent dashed line being closer to the equipped vehicle than the solid line, and (b) said control determines a non-encroachment/no-passing zone to exist to the left of the equipped vehicle when the double lines are determined to be two solid lines, and (c) said control determines a non-encroachment zone to exist to the left of the equipped vehicle when the double lines are determined to be a solid line and an adjacent dashed line with the adjacent dashed line being farther from the equipped vehicle than the solid line.

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