Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1991-08-28
1992-12-08
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
244175, 244 76R, 364434, B64C 1144
Patent
active
051690900
ABSTRACT:
A helicopter flight control system includes a model following control system architecture having provisions to compensate for Euler singularities which occur when the pitch attitude of the helicopter starts to approach ninety degrees. The control system processes information from a variety of helicopter sensors in order to provide the control commands to the helicopter main and tail rotors. The present invention synchronizes a sensed attitude signal, and a desired attitude signal as the pitch attitude of the helicopter approaches ninety degrees to compensate for the Euler singularities.
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Dryfoos James B.
Gold Phillip J.
Skonieczny Joseph P.
Wright Stuart C.
Mojica Virna Lissi
O'Shea Patrick J.
Peters Jr. Joseph F.
United Technologies Corporation
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