Automatic steering control apparatus

Details Automatic steering control apparatus Automatic steering control apparatus

1996-10-30

1999-06-22

Mai, Lanna

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

701 26, B60T 716

Patent

active

059133767

ABSTRACT:
An automatic steering control apparatus automatically steers a motor vehicle to run along a predetermined running path having path markers. The path markers are detected with a marker sensor on the motor vehicle, and positional relationships between a present position of the motor vehicle and the running path are successively determined based on a detected output signal from the marker sensor. Positions of the motor vehicle on map data stored on the motor vehicle are successively determined based on the positional relationships and the map data. Curvature information of portions of the running path on the map data is attained through communications with a travel information providing facility disposed outside of the motor vehicle, and curvature information of the running path ahead of the recognized present position of the motor vehicle is acquired based on the curvature information attained through communications with the travel information providing facility. Alternatively, curvature information of the running path ahead of the recognized present position of the motor vehicle may be acquired from the map data. A steering control quantity for the motor vehicle is determined based on at least the acquired curvature information, a present speed of the motor vehicle, and a present positional relationship between the motor vehicle and the running path.

REFERENCES:
patent: 3590383 (1971-06-01), Nakahara
patent: 3696882 (1972-10-01), Martin
patent: 4939650 (1990-07-01), Nishikawa
patent: 5229941 (1993-07-01), Hattori
patent: 5233526 (1993-08-01), Detriche et al.
patent: 5321614 (1994-06-01), Ashworth
patent: 5347456 (1994-09-01), Zhang et al.
patent: 5369591 (1994-11-01), Broxmeyer
patent: 5471385 (1995-11-01), Suzuki et al.

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