Driver assistance system for vehicle

  • US 7,616,781 B2
  • Filed: 04/24/2009
  • Issued: 11/10/2009
  • Est. Priority Date: 04/15/2004
  • 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:

  • an imaging device having a field of view forward of a vehicle equipped with said driver assistance system and in a direction of travel of the equipped vehicle, wherein said imaging device is operable to capture image data;

    an image processor operable to process image data captured by said imaging device;

    a global positioning system operable to determine a geographical location of the equipped vehicle;

    an information display disposed at a location in the interior cabin of the vehicle and viewable by a driver of the equipped vehicle when the driver is normally operating the equipped vehicle;

    speed sensing for determining a speed of the equipped vehicle;

    wherein said driver assistance system determines a speed limit for the road along which the equipped vehicle is traveling based at least in part on image data and on the geographical location of the equipped vehicle;

    wherein said driver assistance system determines a difference between the speed of the equipped vehicle and the speed limit for the road along which equipped vehicle is traveling;

    wherein said information display displays information for viewing by the driver of the equipped vehicle when the driver is normally operating the equipped vehicle, and wherein the displayed information comprises the speed limit for the road along which the equipped vehicle is traveling and at least one of (a) the speed of the equipped vehicle and (b) a difference between the speed of the equipped vehicle and the speed limit for the road along which the equipped vehicle is traveling;

    wherein said driver assistance system generates an alert when a difference between the speed of the equipped vehicle and the speed limit reaches a threshold amount, and wherein said threshold amount is selectable by a driver of the equipped vehicle; and

    wherein said alert comprises one of (a) a change in intensity of displayed information, (b) a flashing of displayed information, (c) a change in color of displayed information, (d) highlighting of displayed information, (e) an audible alert, (f) a tactile alert and (g) a haptic alert.

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