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Road environment recognition device and method of recognizing road environment

  • US 20080040039A1
  • Filed: 04/24/2007
  • Published: 02/14/2008
  • Est. Priority Date: 05/17/2006
  • Status: Active Grant
First Claim
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1. A road environment recognition device comprising:

  • a radar unit on a subject vehicle, wherein the radar unit emits a plurality of beams in a predetermined angle range in a width direction and a height direction of the subject vehicle, and receives a reflection beam reflected by an object;

    an object recognizing element for recognizing a position of the object relative to the subject vehicle and an attribute of the object based on results of the emitted plurality of beams and the reflection beam;

    a traveling amount measuring element for measuring a traveling amount of the subject vehicle;

    a coordinate position calculating element for repeatedly calculating a coordinate position of the subject vehicle in an absolute coordinate having a predetermined point as an origin point based on the traveling amount measured by the traveling amount measuring element, and repeatedly calculating a coordinate position of the object based on the calculated position of the subject vehicle and the position of the object relative to the subject vehicle; and

    a road environment recognizing element for memorizing the coordinate positions of the subject vehicle and the object, and recognizing a road environment of the subject vehicle based on the memorized coordinate positions and the attribute of the object.

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