Auto-steering system

Details Auto-steering system Auto-steering system

1978-03-23

1981-06-30

Blix, Trygve M.

Ships

Steering mechanism

Remote control steering excluding manual operation

318588, B63H 2500

Patent

active

042756766

ABSTRACT:
In an auto-steering system for boats and cruisers having, in each of the starboard and port motor drivers, a comparator and a motor driver circuit in series with each other. The level of the reference voltage to be applied to the comparator is adjusted in accordance with changes in the environmental conditions during sailing of the boat in order to selectively raise or lower the control accuracy of the system and, when further required, the drive circuit takes the form of a lowpass filter of a selected time constant so that the system is made irresponsive to the so-called chattering deviation of the boat sailing course. Not only great saving in the power consumption but also remarkable reduction in malfunction of the mechanical and electrical parts while assuring macroscopic following of the boat along the prescribed navigation course.

REFERENCES:
patent: 3131340 (1964-04-01), Johnson et al.
patent: 3280781 (1966-10-01), Koerner
patent: 3505577 (1970-04-01), Hirokawa
patent: 3662243 (1972-05-01), Cavil et al.
patent: 3689846 (1972-09-01), Naeyaert
patent: 3696282 (1972-10-01), Hirokawa et al.
patent: 3919961 (1975-11-01), McDougal
patent: 4103638 (1978-08-01), Fowler
patent: 4134026 (1979-01-01), Sone et al.
Zugay, M. L., "Circuit for Eliminating Contact Bounce," Western Electric Technical Digest, No. 26, Apr. 1972, p. 69.

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