Patent ID: 8094001

Claim:
A vehicle lane departure warning system comprising: a position sensor for sensing position of a vehicle; memory storing learned vehicle path data; a controller for processing the sensed position and determining a stored learned vehicle path that the vehicle is travelling on, said controller comprising logic for comparing the sensed position to the stored learned vehicle path and determining if the vehicle is sufficiently departing from the stored learned path by sensing position of a vehicle and generating position data, processing the sensed position data of the vehicle, determining a learned vehicle path that the vehicle is travelling on based on the sensed position data, applying a confidence level to the learned vehicle path, wherein the confidence level provides an indication as to the number of times the vehicle path has been traveled by the vehicle, updating a learned path when the confidence level is less than the threshold value; storing the learned vehicle path in memory, updating the stored learned vehicle path as the vehicle repeatedly travel on the path; comparing the sensed position to the stored learned vehicle path, determining whether the vehicle is sufficiently departing from the stored learned vehicle path based on the comparison, and providing a warning signal indication output if the vehicle is determined to be departing from the stored learned vehicle path; and an output for providing a warning signal indicative of the vehicle departing from the stored learned path.