Electricity: motive power systems – Positional servo systems – Vehicular guidance systems with single axis control
Patent
1982-08-03
1986-04-15
Shoop, William M.
Electricity: motive power systems
Positional servo systems
Vehicular guidance systems with single axis control
318584, 318586, 318585, 244178, B64C 1304
Patent
active
045830304
ABSTRACT:
Aircraft attitude along the pitch axis is controlled by inputting a velocity command to a pitch control subsystem that includes a velocity side channel and a gain side channel of a pitch servo amplifier. An output from each channel of the pitch servo amplifier is applied to a pitch servo motor for positioning a primary control surface. The velocity of the pitch servo motor is detected by a velocity detector that generates a velocity feedback signal and control signals for each channel of the pitch servo amplifier. Also responsive to the velocity signal of the detector is a pre-flight test circuit for pre-flight checkout of the pitch control subsystem. In each line from the output of the channels of the pitch servo amplifier is a current detector that is part of a pitch trim control subsystem that responds to the current through the pitch servo motor to generate a trim velocity command signal. This velocity command signal is input to a velocity side channel and a gain side channel of a trim servo amplifier. An output from each channel of the trim servo amplifier is applied to a trim servo motor for positioning trim tab surfaces as part of the primary control surface. Again, the velocity of the trim servo motor is detected by a velocity detector that generates a velocity feedback signal and control signals for each channel of the trim servo amplifier.
REFERENCES:
patent: 3201675 (1965-08-01), Curran et al.
patent: 3510092 (1970-05-01), Hendrick et al.
patent: 3565370 (1971-02-01), Moller
patent: 3659173 (1972-04-01), Pfersch
patent: 3793574 (1974-02-01), Hamel
patent: 3801049 (1974-04-01), Simpson et al.
patent: 3848833 (1974-11-01), Rauschelbach
patent: 3918662 (1975-11-01), Vircks et al.
patent: 3920966 (1975-11-01), Knemeyer et al.
patent: 3936715 (1976-02-01), Nixon et al.
patent: 3950687 (1976-04-01), Watson, Jr.
patent: 3967799 (1976-07-01), Muller
patent: 4004756 (1977-01-01), Gerstine et al.
patent: 4095271 (1978-06-01), Muller
patent: 4114842 (1978-09-01), Hofferber et al.
patent: 4198017 (1980-04-01), Murray
patent: 4281811 (1981-08-01), Nixon
patent: 4291260 (1981-09-01), Nixon
Bergman Saul M.
Booth John F.
Century Flight Systems, Inc.
Crutsinger Gerald G.
Ross Monty L.
LandOfFree
Pitch/trim control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pitch/trim control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pitch/trim control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1441448