Patent ID: 7571053
Filing Date: 2009-08-04
Classification: B60T,B60W,B62D,G08G

Abstract:
1. A lane deviation prevention apparatus mounted on a vehicle, comprising: image pickup means for photographing a front image in front of the vehicle; driving lane shape recognition means for detecting a lane mark on a road included in the front image within a lane mark detection distance range and for recognizing a shape of a driving lane boundary; deviation prediction judgment means that judges, based on the shape of the driving lane boundary, whether the vehicle deviates from a driving lane after a deviation prediction time which is previously set and outputs a deviation prevention output in a case where it is judged that the vehicle deviates; and deviation prevention output means that operates based on the deviation prevention output, wherein the deviation prediction judgment means judges whether the vehicle deviates from a boundary pattern of the driving lane on a deviation prediction judgment line corresponding to a vehicle speed and the deviation prediction time, and the driving lane shape recognition means dynamically sets a position of the lane mark detection distance range in accordance with the vehicle speed and the deviation prediction time so that the deviation prediction judgment line is included within the lane mark detection distance range.