Force feel actuator with limited proportional/integral error fee

Details Force feel actuator with limited proportional/integral error fee Force feel actuator with limited proportional/integral error fee

1979-10-23

1982-01-26

Ruggiero, Joseph F.

Boots, shoes, and leggings

244223, 244227, 318609, 318628, 364161, 364190, G05B 1142, B64C 1304

Patent

active

043131654

ABSTRACT:
A system which provides feel-force to the control stick of an aircraft by means of hydraulic pressure is provided with non-nulling, proportional, direct feedback loop, and a limited integral feedback loop in the drive of the pressure control servo valve that commands the pressure-generating hydraulic force actuator. Static nulls are compensated in the integral path; integration is corrected when the static null and integral output exceed a limiting value. Embodiments include software and/or hardware portions.

REFERENCES:
patent: 3476335 (1969-11-01), Andeen et al.
patent: 3514056 (1970-05-01), DiCamillo
patent: 3521839 (1970-07-01), Diani
patent: 3528633 (1970-09-01), Knemeyer
patent: 3700995 (1972-10-01), Parkinson et al.
patent: 4198017 (1980-04-01), Murray

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