Automatic vehicle control method

Details Automatic vehicle control method Automatic vehicle control method

1985-10-04

1987-05-12

Basinger, Sherman D.

Ships

Steering mechanism

Remote control steering excluding manual operation

364447, B63H 2502

Patent

active

046640525

ABSTRACT:
A control system for causing a vehicle, such as a ship, to follow a track comprising track segments TS1, TS2 whose position and heading are specified, in accordance with a weighted function of track error and heading error. On changing from following a track segment TS1 to the next segment TS2 at P1 the vehicle will overshoot, as shown by curve A. The invention provides for the weighting factor for the heading to be temporarily increased when the vehicle changes track segments, thus reducing the overshoot as shown by curve B. A further improvement, indicated by curve C, is obtained by fixing the changeover point at P2, in advance of the track segment intersection, the amount of the advance being a function of vehicle characteristics and speed.

REFERENCES:
patent: 2751541 (1956-06-01), Schuck
patent: 3436531 (1969-04-01), Throckmorton
patent: 3771483 (1973-11-01), Bond

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