Patent ID: 8498782

Claim:
An apparatus for keeping a traffic lane and preventing lane-deviation for a vehicle, comprising: a traffic lane recognizer extracting traffic lane information from an image of a road at the left side of the vehicle, the image photographed through an image photographing device; a curbstone recognizer extracting information on a curbstone positioned at the right side of the vehicle from distance information between a distance measuring device and a right ground surface of the vehicle measured by the distance measuring device; a position recognizer acquiring positional information of the vehicle by using a global positioning system and extracting road information corresponding to a current position of the vehicle from a road information database by using the acquired positional information; a traffic lane information integrator generating a virtual traffic lane on the basis of the extracted road information, traffic lane information, and curbstone information; a steering control calculator calculating a steering value for controlling a steering device of the vehicle on the basis of the generated virtual traffic lane and a center point of the vehicle; and a steering device controller controlling the steering device on the basis of the calculated steering value, wherein the traffic lane information integrator includes: a traffic lane distance calculating unit calculating a distance between the image photographing device and the traffic lane by using the traffic lane information extracted by the traffic lane recognizer; a curbstone distance calculating unit calculating a distance between the distance measuring device and the curbstone by using the curbstone information extracted by the curbstone recognizer; and a travelling traffic lane generating unit generating the virtual travelling traffic lane by using the distance values calculated by the traffic lane distance calculating unit and the curbstone distance calculating unit.