Data processing: vehicles – navigation – and relative location – Navigation – Determination of along-track or cross-track deviations
Patent
1998-05-26
2000-05-30
Cuchlinski, Jr., William A.
Data processing: vehicles, navigation, and relative location
Navigation
Determination of along-track or cross-track deviations
342456, 342961, 340995, 364448, 364447, 701 70, G05D 300
Patent
active
060701218
ABSTRACT:
An error in road data is compensated for to correctly determine an actual road shape and to carry out a precise vehicle control on the basis of the determined road shape. A deviation .DELTA..theta.V between an azimuth angle .theta.V of movement of a vehicle and an azimuth angle .theta.1 of a road connecting a node N.sub.0 behind the position of the vehicle and a node N.sub.1 ahead of the position of the vehicle, or a deviation .DELTA..theta.V between the azimuth angle .theta.V of movement of a vehicle and an azimuth angle .theta.1 of a road connecting the position of the vehicle and the node N.sub.1 ahead of the position of the vehicle, is calculated. When the deviation .DELTA..theta.V is equal to or greater than a reference value it is determined that there is an error in the position of the node N.sub.1, and the road shape presumed from the road data is corrected to the actual road shape. Then, a warning operation for advising a driver of a decelerating operation or an automatic braking operation is carried out on the basis of the corrected road shape so that the vehicle can pass through the curve ahead of the vehicle.
REFERENCES:
patent: 5629855 (1997-05-01), Kyrtsos et al.
patent: 5911775 (1999-06-01), Tanimoto
patent: 5928305 (1999-07-01), Nomura
patent: 5941934 (1999-08-01), Saro
Cuchlinski Jr. William A.
Honda Giken Kogyo Kabushiki Kaisha
Mancho Ronnie
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