Rear collision avoidance system for vehicle

  • US 9,327,693 B2
  • Filed: 04/09/2014
  • Issued: 05/03/2016
  • Est. Priority Date: 04/10/2013
  • Status: Active Grant
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First Claim
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1. A collision avoidance system of a vehicle, said collision avoidance system comprising:

  • a camera disposed at a vehicle equipped with said collision avoidance system, said camera having a field of view exterior of and rearward of the equipped vehicle;

    a plurality of other sensors disposed at the equipped vehicle so as to sense forwardly and sidewardly of the equipped vehicle, said plurality of other sensors capturing sensor data;

    an image processor operable to process image data captured by said camera;

    wherein, responsive to image processing of captured image data, said collision avoidance system is operable to determine an approach of a vehicle rearward of the equipped vehicle and to determine an excitation level depending on (i) a difference between the speed of the approaching vehicle and the speed of the equipped vehicle and (ii) a distance between the approaching vehicle and the equipped vehicle;

    wherein, responsive to a determined excitation level, said collision avoidance system is operable to at least one of (a) provide an alert to the driver of the equipped vehicle, (b) provide a visual alert to the driver of the approaching vehicle, (c) prepare the equipped vehicle for impact, (d) control a braking system of the equipped vehicle and (e) control an acceleration system of the equipped vehicle;

    wherein, responsive to a determined excitation level, said collision avoidance system is operable to at least one of (i) transmit an alert to the driver of the approaching vehicle via a telematics system and (ii) communicate information to the approaching vehicle via a telematics system; and

    wherein said collision avoidance system is operable to process sensor data captured by said plurality of other sensors to determine at least one avoidance path of travel for the equipped vehicle to follow, and wherein, responsive to the determined excitation level being greater than a threshold level, said collision avoidance system controls a steering system of the equipped vehicle to follow the determined avoidance path of travel.

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