Aeronautics and astronautics – Aircraft control – Automatic
Patent
1989-09-08
1991-07-23
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft control
Automatic
244194, 244226, 244227, 60432, B64C 1336
Patent
active
050336940
ABSTRACT:
An attitude control system for controlling a plurality of attitude control devices, which cooperate to establish the attitude of a vehicle includes redundant control units for outputting attitude control signals to each of the attitude control devices. Additionally, a plurality of discreet power servo units are provided which are located in proximity to and operatively connected to the plurality of attitude control devices. The redundant control units and the plurality of discreet power servo units are connected electrically and/or optically. Each of the discreet power servo units includes an adder for adding an attitude control signal and a positional feed back signal, a rotational drive source for providing a rotational motion in response to the output from the adder, a fluid pressure circuit for hydraulically driving an attitude control device coupled thereto, and a sensor for sensing the position of the attitude control device coupled thereto and for providing to the adder the positive feed back signal.
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patent: 3379951 (1968-04-01), Franchi et al.
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patent: 3679156 (1972-07-01), Redmond, Jr.
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patent: 3960348 (1976-06-01), Fowler et al.
patent: 4055135 (1977-10-01), Wesner
patent: 4079906 (1978-03-01), Durandeau et al.
Daiichi Electric Kabushiki Kaisha
Ellis Christopher P.
Peters Jr. Joseph F.
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