Aircraft ice protection control system and method for mitigating engine over-bleed
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-007/70
B64D-015/04
F02C-006/08
B64D-015/22
출원번호
US-0855304
(2013-04-02)
등록번호
US-8843253
(2014-09-23)
발명자
/ 주소
Chapman, Gregory J.
출원인 / 주소
Honeywell International Inc.
대리인 / 주소
Ingrassia Fisher & Lorenz, P.C.
인용정보
피인용 횟수 :
1인용 특허 :
5
초록▼
A system and method for controlling aircraft anti-ice bleed air flow in an anti-ice system. The system includes a modulating shut-off valve that is moveable between a closed position and a plurality of open positions. Bleed air pressure upstream of the modulating shut-off valve is measured when the
A system and method for controlling aircraft anti-ice bleed air flow in an anti-ice system. The system includes a modulating shut-off valve that is moveable between a closed position and a plurality of open positions. Bleed air pressure upstream of the modulating shut-off valve is measured when the modulating shut-off valve is in the closed position. When an anti-ice initiation signal is received in a processor, the processor determines, based on at least the measured bleed air pressure when the anti-ice initiation signal was received, an initial open position of the modulating shut-off valve. The processor also commands the modulating shut-off valve to move to the initial open position, determines when a predetermined event occurs, and commands the modulating shut-off valve to remain in the initial open position until the predetermined event occurs period.
대표청구항▼
1. A method of controlling aircraft anti-ice bleed air flow in an anti-ice system comprising a modulating shut-off valve that is moveable between a closed position and a plurality of open positions, the method comprising the steps of: measuring, when the modulating shut-off valve is in the closed po
1. A method of controlling aircraft anti-ice bleed air flow in an anti-ice system comprising a modulating shut-off valve that is moveable between a closed position and a plurality of open positions, the method comprising the steps of: measuring, when the modulating shut-off valve is in the closed position, bleed air pressure upstream of the modulating shut-off valve;receiving, in a processor, an anti-ice initiation signal; andusing the processor to: determine, based on at least the measured bleed air pressure when the anti-ice initiation signal was received, an initial open position of the modulating shut-off valve,command the modulating shut-off valve to move to the initial open position,determine when a predetermined event occurs, andcommand the modulating shut-off valve to remain in the initial open position until the predetermined event occurs period. 2. The method of claim 1, further comprising: measuring aircraft altitude; andusing the processor to determine the initial open position of the modulating shut-off valve based additionally on the measured aircraft altitude when the anti-ice initiation signal was received. 3. The method of claim 1, further comprising: upon occurrence of the predetermined event, using the processor to command the modulating shut-off valve to move to an open position based on one or more additional parameters. 4. The method of claim 3, wherein the one or more additional parameters includes a measured aircraft surface temperature. 5. The method of claim 1, wherein the predetermined event comprises a lapse of a predetermined time period. 6. The method of claim 1, wherein the predetermined event comprises another control function within the processor needing to control the modulating shut-off valve. 7. The method of claim 1, further comprising: determining a schedule of initial position versus bleed air pressure for a plurality of different aircraft; andusing the schedule appropriate to the aircraft in which the anti-ice system is installed to determine the initial open position of the modulating shut-off valve. 8. An aircraft anti-ice system, comprising: a conduit adapted to receive a flow of bleed air;a modulating shut-off valve mounted on the conduit and responsive to valve position commands to move between a closed position and a plurality of open positions;a pressure sensor configured to sense bleed air pressure upstream of the modulating shut-off valve and supply a bleed air pressure signal representative thereof; andan anti-ice controller in operable communication with the bleed air pressure sensor and the modulating shut-off valve, the anti-ice controller adapted to receive an anti-ice initiation signal and configured, upon receipt thereof, to: determine, based on at least the sensed bleed air pressure when the anti-ice initiation signal was received, an initial open position of the modulating shut-off valve,determine when a predetermined event occurs, andsupply valve position commands to the modulating shut-off valve that cause the modulating shut-off valve to (i) move from the closed position to the initial open position and (ii) remain in the initial open position until the predetermined event occurs. 9. The system of claim 8, wherein the anti-ice controller is: adapted to receive an altitude signal representative of aircraft altitude; andconfigured to determine the initial open position of the modulating shut-off valve based additionally on the aircraft altitude when the anti-ice initiation signal was received. 10. The system of claim 8, wherein the anti-ice controller is further, upon occurrence of the predetermined event, to command the modulating shut-off valve to move to an open position based on one or more additional parameters. 11. The system of claim 8, further comprising: a temperature sensor configured to sense an aircraft surface temperature and supply a temperature signal representative thereof to the anti-ice controller,wherein the one or more additional parameters includes the aircraft surface temperature. 12. The system of claim 8, wherein the predetermined event comprises a lapse of a predetermined time period. 13. The system of claim 8, wherein the predetermined event comprises another control function within the processor needing to control the modulating shut-off valve. 14. An aircraft anti-ice system, comprising: a first conduit adapted to receive a first flow of bleed air;a second conduit adapted to receive a second flow of bleed air;a first modulating shut-off valve mounted on the first conduit and responsive to first valve position commands to move between a closed position and a plurality of open positions;a first pressure sensor configured to sense bleed air pressure upstream of the first modulating shut-off valve and supply a first bleed air pressure signal representative thereof;a second modulating shut-off valve mounted on the second conduit and responsive to second valve position commands to move between a closed position and a plurality of open positions;a second pressure sensor configured to sense bleed air pressure upstream of the second modulating shut-off valve and supply a second bleed air pressure signal representative thereof; andan anti-ice controller in operable communication with the first and second bleed air pressure sensors and the first and second modulating shut-off valves, the anti-ice controller adapted to receive an anti-ice initiation signal and configured, upon receipt thereof, to: determine, based on at least the sensed first and second bleed air pressures when the anti-ice initiation signal was received, initial open positions of the first and second modulating shut-off valves,determine when a predetermined event occurs, andsupply valve position commands to the first and second modulating shut-off valves that cause the first and second modulating shut-off valves to (i) move from the closed positions to the initial open positions and (ii) remain in the initial open positions until the predetermined event occurs. 15. The system of claim 14, wherein the anti-ice controller is: adapted to receive an altitude signal representative of aircraft altitude; andconfigured to determine the initial open position of the modulating shut-off valve based additionally on the aircraft altitude when the anti-ice initiation signal was received. 16. The system of claim 14, wherein the anti-ice controller is further configured, upon occurrence of the predetermined event, to command the modulating shut-off valve to move to an open position based on one or more additional parameters. 17. The system of claim 14, further comprising: a first temperature sensor configured to sense a first aircraft surface temperature and supply a first temperature signal representative thereof to the anti-ice controller; anda second temperature sensor configured to sense a second aircraft surface temperature and supply a second temperature signal representative thereof to the anti-ice controller,wherein the one or more additional parameters includes the first and second aircraft surface temperature. 18. The system of claim 14, wherein the predetermined event comprises a lapse of a predetermined time period. 19. The system of claim 14, wherein the predetermined event comprises another control function within the anti-ice controller needing to control the modulating shut-off valve.
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이 특허에 인용된 특허 (5)
Monteiro, Oswaldo Barthel; Tin, Vinicius Jorge; da Silva Franco, Bernardo Campos; Barbosa, Ricardo Jose, Bleed airflow balancing control using simplified sensing.
Dasilva, Olubusola Anthony; Conn, Heath Alan; Langhofer, Erik Marc; El-Gabalawy, Hosam El Din; DiRusso, Joseph M., Dual valve apparatus for aircraft engine ice protection and related methods.
Chapman, Gregory J.; Greco, Robert J.; Chow, Philip S., Ice protection system and method including a plurality of segmented sub-areas and a cyclic diverter valve.
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