Patent ID: 7411486
Filing Date: 2008-08-12
Classification: B60Q

Abstract:
1. A driver assistance device for warning a driver of a motor vehicle of a risk of departure from the road or from the lane in which he is driving, said device comprising: at least one image-transmitting sensor, a distance-transmitting sensor, an evaluation device, connected to the image-transmitting sensor and the distance—transmitting sensor, for detecting a structure condition of a road edge and/or a lane edge, comprising: means for creating a distance profile from measured values of the distance-transmitting sensor to detect discontinuity in the distance profile, and means for detecting a structural boundary at the region of the edge of lane on the basis of a detected discontinuity in the distance profile to differentiate between the structural boundary and edge-of-lane markings, indicative of a structure condition of the road edge and/or lane edge; a warning device which is connected to the evaluation device, wherein the warning device varies time points of warning output, indicating a risk of departure from the road or from the lane which the vehicle is in, depending on the structure condition of the road edge and/or the lane edge.