Device for acquiring lane path indicative data
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United States of America Patent
Stats
-
Sep 18, 2001
Grant Date -
N/A
app pub date -
Nov 6, 1998
filing date -
Nov 6, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for acquiring data indicative of the path of a lane is provided. The device incorporates a lane detection sensing circuit, an object position sensing circuit that detects at least the distance of an object located in front of the vehicle and its directional angle relative to the direction of vehicle motion, and a sensing circuit for the vehicle's own motion. An estimating device is provided that is supplied with lane recognition measurement data, object position measurement data, and measurement data on the vehicle's own motion. As a function of the vehicle's own motion, the estimating device determines the lane curvature and/or the transverse position of an object ahead of the vehicle relative to the lane by estimation, using a presettable estimation algorithm including a dynamic vehicle motion model. The device preferably includes a Kalman filter for this purpose, and is used, for example, in road vehicles.
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