Vehicle vision system with collision mitigation

  • US 9,824,587 B2
  • Filed: 02/12/2016
  • Issued: 11/21/2017
  • Est. Priority Date: 06/19/2013
  • Status: Active Grant
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First Claim
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1. A method for determining potential collision with another vehicle by a vehicle equipped with a vision system, said method comprising:

  • capturing image data of an exterior environment ahead of the equipped vehicle via a camera disposed at the equipped vehicle and having a field of view at least forward of the equipped vehicle;

    processing, via an image processor, image data captured by said camera;

    determining, via image processing by said image processor of captured image data, the presence of a leading vehicle ahead of the equipped vehicle;

    determining, via image processing by said image processor of captured image data, a time to collision to the leading vehicle;

    determining, via image processing by said image processor of captured image data, when a brake light of the leading vehicle is illuminated;

    responsive at least in part to the determined time to collision being below a threshold value of time and determination that the brake light of the leading vehicle is illuminated, determining at least one of (i) a degree of warning to a driver of the equipped vehicle and (ii) a braking level of the equipped vehicle to mitigate collision with the leading vehicle; and

    after determining at least one of (i) a degree of warning to a driver of the equipped vehicle and (ii) a braking level of the equipped vehicle to mitigate collision with the leading vehicle, and responsive at least in part to determination, via image processing by said image processor of captured image data, that the brake light of the leading vehicle ceases to be illuminated, at least one of (i) reducing the determined degree of warning to the driver of the vehicle and (ii) decreasing the determined braking level of the equipped vehicle.

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