Method and apparatus for prompting a motor vehicle operator to remain within a lane
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 1, 2001
Grant Date -
N/A
app pub date -
Mar 22, 1999
filing date -
Mar 22, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system assists the driver of a motor vehicle to travel within a designated driving lane defined by one or more lane boundaries. The lane boundary is sensed as the vehicle moves within the lane while monitoring the position of the vehicle relative to the lane boundary. The operation of the vehicle is then adjusted as a function of the proximity of the vehicle to the lane boundary. In one embodiment, the operation of the vehicle is affected by adjusting the functioning of the steering wheel, preferably by providing tactile feedback which causes the driver to experience a virtual change in lane elevation as the vehicle approaches the lane boundary. In the preferred embodiment, the tactile feedback causes the vehicle operator to experience the lane as having a depression with sloping sidewalls. Where the lane boundaries are defined by visual lane markers, the lane-boundary sensor preferably takes the form of a video camera to image the lane markers.
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