Patent ID: 6370474
Filing Date: 2002-04-09
Classification: B60Q,B60T,G08G

Abstract:
A vehicular active drive assist system comprising a lane deviation judgment unit which judges the possibility of deviation of own vehicle from a traffic lane on a roadway ahead and a warning control unit which controls a warning based on judgment results fed from the lane deviation judgment unit, wherein the lane deviation judgment unit sets a first judgment line approximately parallel to a lateral direction of the own vehicle at a first distance ahead of the own vehicle, sets a second judgment line approximately parallel to the lateral direction of the own vehicle at a second distance ahead of the own vehicle, makes a judgment on the possibility of deviation from the traffic lane based on the location of the own vehicle and the location of lane markings on the first judgment line, makes another judgment on the possibility of deviation from the traffic lane based on the location of the own vehicle and the location of the lane markings on the second judgment line, and finally judges the possibility of deviation from the traffic lane based on the results of these two judgments.