Fluid-powered thrust reverser actuation system speed control
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0165408
(2008-06-30)
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등록번호 |
US-8170771
(2012-05-01)
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발명자
/ 주소 |
- Calmelat, Michael J.
- Eschborn, David M.
- Potter, Cal
- Chakkera, Kevin K.
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출원인 / 주소 |
- Honeywell International Inc.
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대리인 / 주소 |
Ingrassia Fisher & Lorenz, P.C.
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인용정보 |
피인용 횟수 :
2 인용 특허 :
10 |
초록
▼
A fluid-powered thrust reverser actuation speed control system and method are provided. A drive fluid is supplied to a fluid-powered drive mechanism that is coupled to a thrust reverser movable component to thereby move the thrust reverser movable component at a first movement speed. A determination
A fluid-powered thrust reverser actuation speed control system and method are provided. A drive fluid is supplied to a fluid-powered drive mechanism that is coupled to a thrust reverser movable component to thereby move the thrust reverser movable component at a first movement speed. A determination is made as to when the thrust reverser movable component attains a predetermined position. In response to the thrust reverser movable component attaining the predetermined position, the drive fluid supplied to the fluid-powered drive mechanism is controlled to thereby move the thrust reverser movable component at a second movement speed that is less than the first movement speed.
대표청구항
▼
1. A method of controlling movement speed of a thrust reverser movable component, the method comprising: supplying a drive fluid to a fluid-powered drive mechanism that is coupled to the thrust reverser movable component to thereby move the thrust reverser movable component at a first movement speed
1. A method of controlling movement speed of a thrust reverser movable component, the method comprising: supplying a drive fluid to a fluid-powered drive mechanism that is coupled to the thrust reverser movable component to thereby move the thrust reverser movable component at a first movement speed;supplying a control fluid to a fluid-powered control mechanism, the fluid-powered control mechanism responsive to the control fluid to control the drive fluid supplied to the fluid-powered drive mechanism;determining when the thrust reverser movable component attains a predetermined position; andin response to the thrust reverser movable component attaining the predetermined position, controlling the control fluid supplied to the fluid-powered control mechanism to control the drive fluid supplied to the fluid-powered drive mechanism to thereby move the thrust reverser movable component at a second movement speed, the second movement speed less than the first movement speed. 2. The method of claim 1, further comprising: sensing thrust reverser movable component movement speed; andcontrolling the fluid supplied to the fluid-powered drive mechanism in accordance with a closed-loop speed control scheme. 3. The method of claim 1, further comprising: sensing thrust reverser movable component movement speed; anddetermining thrust reverser movable component position from the sensed thrust reverser movable component movement speed. 4. The method of claim 1, further comprising: determining when the thrust reverser movement component attains an end-of-stroke position; andin response to the thrust reverser movable component attaining the end-of-stroke position, ceasing to supply the fluid to the fluid-powered drive mechanism. 5. The method of claim 4, wherein the end-of-stroke position is a fully-deployed position. 6. The method of claim 4, wherein the end-of-stroke position is a stowed position. 7. The method of claim 1, wherein the drive fluid is air. 8. The method of claim 1, wherein the drive fluid is hydraulic fluid. 9. An aircraft thrust reverser control system, comprising: a thrust reverser movable component;a fluid-powered drive mechanism coupled to the thrust reverser movable component and adapted to receive drive fluid, the fluid-powered drive mechanism responsive to the drive fluid to move the thrust reverser movable component at a movement speed;a fluid-powered control mechanism coupled to the fluid-powered drive mechanism and adapted to receive a control fluid, the fluid-powered control mechanism responsive to the control fluid to control the drive fluid to the fluid-powered drive mechanism;a pilot valve in fluid communication with the fluid-powered control mechanism and coupled to receive control signals, the pilot valve responsive to the control signals to controllably supply the control fluid to the fluid-powered control mechanism; anda control unit operable to determine thrust reverser movable component position and selectively supply the control signals to the pilot valve, to thereby control the drive fluid to the fluid-powered drive mechanism to: (i) move the thrust reverser movable component at a first movement speed and,(ii) when the thrust reverser movable component attains a predetermined position, move the thrust reverser movable component at a second movement speed, the second movement speed less than the first movement speed. 10. The system of claim 9, further comprising: a speed sensor coupled to the control unit, the speed sensor operable to sense thrust reverser movable component movement speed and supply a speed signal representative thereof to the control unit,wherein the control unit is operable to control the drive fluid to the fluid-powered drive mechanism in accordance with a closed-loop speed control scheme. 11. The system of claim 9, further comprising: a speed sensor coupled to the control unit, the speed sensor operable to sense thrust reverser movable component movement speed and supply a speed signal representative thereof to the control unit,wherein the control unit is operable to determine thrust reverser movable component position from the speed signal. 12. The system of claim 9, further comprising: one or more position sensors coupled to the control unit, the one or more position sensors operable to sense at least when the thrust reverser movement component attains an end-of-stroke position and supply a position signal representative thereof to the control unit,wherein the control unit is further operable, in response to the thrust reverser movable component attaining the end-of-stroke position, to command the supply of the drive fluid to the fluid-powered drive mechanism to cease. 13. The system of claim 12, wherein the end-of-stroke position is a fully-deployed position. 14. The system of claim 12, wherein the end-of-stroke position is a stowed position. 15. The system of claim 9, wherein the drive fluid is air. 16. The system of claim 9, wherein the drive fluid is hydraulic fluid.
이 특허에 인용된 특허 (10)
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Thornock, Russel L.; Sangwin, Michael L.; Hsiao, Entsung, Aircraft systems including cascade thrust reversers.
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Langston, Todd A.; Johnson, Andrew T.; Ahrendt, Terry J., Gearless electric thrust reverser actuators and actuation system incorporating same.
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Ahrendt, Terry, Method for controlling the deployment of jet engine thrust reversers.
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Scholz Klaus H. (Renton WA), Positioning and control system for fan thrust reverser cowls in a turbofan engine.
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Ahrendt, Terry, System and method for controlling the deployment of jet engine thrust reversers.
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Jackson John (Renton WA) Gucker Mark J. (Kirkland WA) Smith Mark H. (Birmingham AL), Thrust reverser synchronization shaft lock.
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Strunk,John T.; Gabel,Bruce, Thrust reversers including latching mechanisms and methods for manufacturing such thrust reversers.
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Stern, Alfred M., Thrust reversing variable area nozzle.
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Colotte,Baptiste; Courpied,Alexandre; Croixmarie,Marc; Joland,Patrick; Le Gouellec,Gilles; Michau,Marion, Turbojet electromechanical thrust reverser with servo-controlled door displacement.
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Colotte,Baptiste; Courpied,Alexandre; Croixmarie,Marc; Joland,Patrick; Le Gouellec,Gilles; Michau,Marion, Turbojet electromechanical thrust reverser with synchronized locking devices.
이 특허를 인용한 특허 (2)
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Oxner, Andrew, Gas pressure reduction generator.
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Maalioune, Hakim, System for controlling at least one actuator of the cowlings of a turbojet engine thrust reverser.
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