[특허]Flight control system for rotary wing aircraft

[미국특허] Flight control system for rotary wing aircraft 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01C-023/00 G05D-001/00 G05D-003/00
출원번호	US-0060119 (2008-03-31)
등록번호	US-8271151 (2012-09-18)
발명자 / 주소	Hasan, Muhammad Emadul Fowler, Donald W. Kang, Pengju
출원인 / 주소	Sikorsky Aircraft Corporation
대리인 / 주소	Carlson, Gaskey & Olds PC
인용정보	피인용 횟수 : 8 인용 특허 : 18

초록

A flight control system and method includes a control loop control law to bias the collective stick toward a trim reference position with a motor and generate a force gradient with a clutch.

대표청구항 ▼

1. A flight control system comprising: a control inceptor;a clutch engageable with said control inceptor;a motor engageable with said control inceptor; anda module comprising a trim reference control law in communication with a control loop control law, said trim reference control law operable to generate a trim reference position for said control inceptor, said trim reference position utilized by said control loop control law to control a speed of said control inceptor toward said trim reference position with said motor and generate a force gradient with said clutch. 2. The system as recited in claim 1, further comprising a position sensor in communication with said control inceptor and said module, said position sensor operable to determine a current position of said control inceptor. 3. The system as recited in claim 2, further comprising a Primary Flight Control System (PFCS) and an Automatic Flight Augmentation and Cueing System (FACS) in communication with said position sensor. 4. The system as recited in claim 3, wherein said PFCS is in communication with said module through a Low Pass Filter in response to a control inceptor rate requirement in response to a required stick movement rate. 5. The system as recited in claim 1, wherein said control inceptor is a collective stick. 6. The system as recited in claim 1, further comprising a position sensor in communication with said control inceptor and said module, said position sensor operable to determine a current position of said control inceptor such that said force gradient is determined in response to said current stick position relative said trim reference position. 7. The system as recited in claim 6, wherein said force gradient defines a bias clutch gain which defines a force required to move said control inceptor out of a soft detent. 8. The system as recited in claim 7, wherein said soft detent is referenced to a non-control inceptor motion function. 9. The system as recited in claim 7, wherein said soft detent is referenced to an Automatic Flight Augmentation and Cuing Cueing System (FACS). 10. The system as recited in claim 7, wherein said soft detent is referenced to a flight related event. 11. The system as recited in claim 7, wherein said soft detent is referenced to a ground proximity event. 12. The system as recited in claim 6, wherein said force gradient defines a force gradient gain which defines a spring-like linear force feedback to move said control inceptor from said reference position. 13. The system as recited in claim 1, wherein said trim reference control law receives a stick position command, a beep command, an autopilot command and a trim release command to generate a trim reference output to said control loop control law. 14. The system as recited in claim 13, wherein said control loop control law receives said stick position command, said trim release command and said trim reference command to generate a clutch command to said clutch and a motor command to said motor. 15. A method of flight control comprising: recording a current position of a control inceptor as a trim reference position;generating a clutch command to hold the control inceptor at the trim reference position; andgenerating a motor speed command in response to movement of the control inceptor from the trim reference position. 16. A method as recited in claim 15, further comprising resetting the clutch command and the motor command in response to a trim release command. 17. A method as recited in claim 15, wherein the clutch command comprises a force gradient gain to the clutch to provide a spring-like linear force feedback to move the control inceptor from the trim reference position. 18. A method as recited in claim 15, wherein the clutch command comprises a force gradient gain to the clutch to provide a damping rate force component. 19. A method of flight control comprising: recording a current position of a control inceptor as a trim reference position;generating a clutch command to hold the control inceptor at the trim reference position, wherein the clutch command comprises a bias clutch gain to the clutch to provide a force required to move the control inceptor out of a soft detent; andgenerating a motor speed command in response to movement of the control inceptor from the trim reference position. 20. A method as recited in claim 19, wherein the soft detent is referenced to a non-control inceptor motion function. 21. A method as recited in claim 20, wherein the soft detent is referenced to an Automatic Flight Augmentation and Cueing System (FACS).

이 특허에 인용된 특허 (18) 인용/피인용 타임라인 분석

Post Joseph A. (Huntington CT) Stiles Lorren (Boxbury CT), Arrangement for controlling the performance of bob-up/bob-down maneuvers by a helicopter.
상세보기
Wright Stuart C. (Woodbridge CT) Stiles ; Jr. Lorren (Woodbury CT) Adams Don L. (Fairfield CT), Collective control system for a helicopter.
상세보기
Evans Charles W. ; Cole Jeffrey L. ; Slayden Jefferson H., Collective detent system for vertical takeoff flight operations.
상세보기
Lappos Nicholas D. (Orange CT), Collective stick force-check device.
상세보기
Dequin Andre-Michel,FRX ; Delisle Valery Lionel,FRX, Device for controlling a helicopter hybrid countertorque system.
상세보기
Adams Don L. (Fairfield CT) Wright Stuart C. (Milford CT) Fischer William C. (Monroe CT) Verzella David J. (Guilford CT), Heading reference trim system.
상세보기
Cizewski Steven C. (Wallingford CT) Lange William F. (Woodbridge CT) Rozak James N. (Cheshire CT), Helicopter collective stick of the displacement type occupying a minimum space envelope yet whose grip generates an arc.
상세보기
Gold Phillip J. (Shelton CT) Fogler ; Jr. Donald L. (Milford CT) Dryfoos James B. (Wallingford PA), Inertial velocity command system.
상세보기
Gold Phillip J. ; Fogler ; Jr. Donald L., Integrated fire and flight control system for controlling the angle of attack of a rotary wing aircraft.
상세보기
Gold Phillip J. ; Fogler ; Jr. Donald L., Integrated fire and flight control system with automatic engine torque limiting.
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Augustin,Michael J.; Bertapelle,Allen L.; Dreier,Mark E.; Linton,Bradley D.; McKeown,William L.; Yeary,Robert D., Method and apparatus for tactile cueing of aircraft controls.
상세보기
Rene Stevens FR, Method and device for assisting the pilot in controlling the turboshaft power and/or rotor speed of heat-propelled helicopters.
상세보기
Schaeffer, Joseph M.; King, David W.; Mehra, Anil, Power lever tactile cueing system.
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Ferranti Michael J. (Naugatuck CT) Novis Ari M. (Rocky Hill CT) Durno Ronald A. (Trumbull CT), Programmable, linear collective control system for a helicopter.
상세보기
Greene,Randall A., Tactile cueing system and method for aiding a helicopter pilot in making landings.
상세보기
McKeown William L., Trim actuator.
상세보기
Gold, Phillip Jeremy; Dryfoos, James B.; Brewer, Roy, Trim augmentation system for a rotary wing aircraft.
상세보기
Gold Phillip J. (Shelton CT) Stiles Lorren (Roxbury CT) Post Joseph A. (Burke VA), Vertical control system for rotary wing aircraft.
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이 특허를 인용한 특허 (8) 인용/피인용 타임라인 분석

Irwin, III, Joseph G.; Einthoven, Pieter G.; Miller, David G.; Spano, Mark S., Active-inceptor tactile-cueing hands-off rate-limit.
상세보기
Edmonds, David O., Ceiling fan.
상세보기
Salamat, Bijan; Sanguinetti, Jorge J.; Myles, Robert J.; Stepanian, Avetis; Gabler, Andrew K., Complex-dynamic air and ground vehicle control inceptor.
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Sahasrabudhe, Vineet; Wulff, Ole, Life improving flight control system.
상세보기
Eglin, Paul, Method for automatic piloting of a rotary wing aircraft having at least one thruster propeller, associated automatic autopilot device, and aircraft.
상세보기
Eglin, Paul, Method of automatically controlling a rotary wing aircraft having at least one propulsion propeller, an autopilot device, and an aircraft.
상세보기
Wagner, Nicholas Adam; Bergsten, Daniel E.; Gutz, David Allen, Propulsion system for an aircraft.
상세보기
Geiger, Derek; Wulff, Ole; Litwin, Jonathan Aaron; Greenfield, Aaron L., Rotor speed control using a feed-forward rotor speed command.
상세보기

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Flight control system for rotary wing aircraft 원문보기