EP2152581A2 - Procede pour collecter une information relative a une surface aerodynamique mobile d'aeronef - Google Patents
Procede pour collecter une information relative a une surface aerodynamique mobile d'aeronefInfo
- Publication number
- EP2152581A2 EP2152581A2 EP08805648A EP08805648A EP2152581A2 EP 2152581 A2 EP2152581 A2 EP 2152581A2 EP 08805648 A EP08805648 A EP 08805648A EP 08805648 A EP08805648 A EP 08805648A EP 2152581 A2 EP2152581 A2 EP 2152581A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- information
- aerodynamic surface
- aircraft
- spout
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 210000003323 beak Anatomy 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/20—Means for detecting icing or initiating de-icing
Definitions
- the invention relates to a method for collecting information relating to an aircraft aerodynamic aerodynamic surface.
- the leading edges of the wings are likely to frost if certain atmospheric conditions are met.
- the leading edges are provided with movable nozzles, these nozzles being equipped with means of protection against frost, for example heating resistors or hot air ducts taken from the reactors which help prevent frost from forming on the beaks.
- the frost protection means are activated when the ambient temperature is within a certain range. It appears that under certain circumstances, the frost protection means are unnecessarily activated, because although the ambient temperature is within this range, frost formation conditions on the leading edges are not met. It was thought to place a temperature sensor directly on the movable spout, to regulate the use of the means of protection against frost according to a temperature information taken closer to the movable spout, which allows to optimize the use of ice protection means. In particular, the means of protection against icing are activated only if the conditions prevailing near the movable spout are likely to give rise to icing.
- GB 2 293 522 discloses a contactless communication system between a fixed structure and a rotor.
- the rotor comprises an electric anti-icing device which is powered by a supply current generated in a winding fixed to the rotor which rotates opposite fixed permanent magnets.
- Sensors arranged on the rotor and fed by said current allow the collection of information on the rotor (for example, a temperature) which is transmitted to the fixed part by a contactless connection.
- the invention relates to a method for collecting at least one information in the immediate environment of a mobile aerodynamic surface, in a simplified manner.
- a method for collecting information relating to a mobile aerodynamic surface of an aircraft comprising the step of collecting the information by means of a suitable sensor. placed directly on the aerodynamic surface.
- a radio-frequency type sensor is used which is placed on the aerodynamic surface for be compared to a structure of the aircraft carrying the aerodynamic surface and be in wireless contactless communication with a radio frequency transceiver disposed on said structure, regardless of the posi- tion of "aerodynamic surface with respect to the structure, so that the sensor receives from the transceiver over the radio the energy needed to collect the information and sends back to the transceiver a signal repre- information.
- the senor no longer needs to be connected by wires to a fixed part of the structure of the aircraft for its power supply or for sending the information.
- the transceiver emits a wave that is received by the sensor and transformed into a current that supplies a sensor processing electronics.
- the processing electronics acquires the information, the caliber, and returns it in radio form to the transceiver, which is placed on the aircraft structure (for example the wing, the stabilizer or the drift). and can therefore be connected by son or bus to an on-board computer of the aircraft.
- radiofrequency technology therefore allows an effective implementation of the information collection closer to the aerodynamic surfaces of the aircraft.
- the invention is here described with reference to the sole figure in a management application of means for protecting against icing of a movable leading edge nozzle of an aircraft wing. It is obvious that the invention is not limited to this application
- the aircraft wing 1 illustrated here is equipped at its leading edge with a spout 10 movable between a folded position referenced A and a deployed position referenced B.
- the movable spout 10 moves from the folded position A to the extended position B by a center D rotation located under the wing, at an angle ⁇ of about 20 degrees. are not shown, for example curved slides.
- the wing 1 comprises a front lug 2 forming with the lining 3 of the wing a torsion box.
- the front spar 2 extends opposite the movable spout 10.
- the movable spout 10 comprises meanwhile a spar 11 on which an aerodynamic profile 12 is brought to form with the spar 11 a torsion box 13. Inside the spout 10 extends a channel 14 (seen here in FIG. section) to conduct hot air taken from the aircraft reactors.
- a channel 14 (seen here in FIG. section) to conduct hot air taken from the aircraft reactors.
- frost protection is required, an unrepresented valve allows the admission of hot air into line 14 to warm the spout 10 and thereby prevent frost formation thereon.
- a radio-frequency transceiver 20 is disposed on the spar 2, thus on the fixed part of the wing 1, facing the movable spout 10.
- the transceiver 20 is connected by a wire link 21 to a control computer of the not shown ice protection means disposed in the fuselage of the aircraft.
- the radiofrequency transceiver 20 is adapted to cooperate by radio with a temperature sensor 22 disposed on the movable spout 10 opposite the wing 1, and more precisely here in direct view of the radiofrequency transceiver 20 when the moving beak is in folded position A.
- the temperature sensor 22 has an antenna connected to a processing electronics, which is itself connected to a temperature probe itself.
- the temperature sensor 22 has no internal source of energy.
- the radiofrequency transceiver 20 When a temperature information is required, the radiofrequency transceiver 20 emits a radio wave which is received by the antenna of the temperature sensor 22.
- the antenna transforms the radio wave into a feed current of the electronic processing, which is then able to read the temperature signal from the probe, calibrate it to a digital information, and transmit this information via the antenna towards the radiofrequency transceiver 20.
- This one then receives the calibrated temperature information and sends it to the control computer which, depending on the value of this information, activates and regulates the means of protection against frost.
- the temperature sensor 22 when the movable spout is in the extended position B, the temperature sensor 22 is no longer in direct view of the radiofrequency transceiver 20. In this position, the temperature sensor is here off-set. at an angle D of about 45 degrees and is about thirty centimeters from the transceiver 20. Nevertheless, the temperature sensor Figure 22 remains within the electromagnetic range of the radio frequency transceiver 20, so that the temperature sensor 22 and the radio frequency transceiver 20 can continue to communicate over the air. This remains of course true for all the intermediate positions of the movable spout 10 between the folded position A and the deployed position B.
- the arrangement of the temperature sensor 22 directly on the movable spout 10 makes it possible to obtain information on the temperature prevailing as close as possible to the moving spout, much more significant than temperature information taken from a sensor placed for example on the fuselage, so away from moving beaks.
- the temperature sensor 22 and the radiofrequency transceiver 20 are arranged in a protected area so that they are unlikely to be hit by a projectile.
- the invention is not limited to this application.
- These different sensors are preferably of the radiofrequency type, without a source of clean energy.
- the invention is particularly adapted to the elements of hypersustentation approaching or moving away from the wing, the invention applies more general to any mobile aerodynamic surface equipping the aircraft, whether on the wing, the stabilizer, the drift ...
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0704090A FR2917066B1 (fr) | 2007-06-07 | 2007-06-07 | Procede pour collecter une information relative a une surface aerodynamique mobile d'aeronef |
| PCT/FR2008/000760 WO2009004184A2 (fr) | 2007-06-07 | 2008-06-05 | Procede pour collecter une information relative a une surface aerodynamique mobile d'aeronef |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2152581A2 true EP2152581A2 (fr) | 2010-02-17 |
Family
ID=38896770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08805648A Withdrawn EP2152581A2 (fr) | 2007-06-07 | 2008-06-05 | Procede pour collecter une information relative a une surface aerodynamique mobile d'aeronef |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20090289147A1 (fr) |
| EP (1) | EP2152581A2 (fr) |
| FR (1) | FR2917066B1 (fr) |
| WO (1) | WO2009004184A2 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9013332B2 (en) * | 2012-01-05 | 2015-04-21 | The Boeing Company | Laser-based supercooled large drop icing condition detection system |
| WO2016053259A1 (fr) * | 2014-09-29 | 2016-04-07 | The Boeing Company | Longerons infléchis pour applications de gouvernail et de gouverne de profondeur |
| US10216167B1 (en) | 2017-09-28 | 2019-02-26 | Hamilton Sundstrand Corporation | Position detection system for a slat flap lever control |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752049A (en) * | 1985-12-30 | 1988-06-21 | The Boeing Company | Leading edge slat/anti-icing system and method for airfoil |
| US4688745A (en) * | 1986-01-24 | 1987-08-25 | Rohr Industries, Inc. | Swirl anti-ice system |
| GB2293522B (en) * | 1994-09-02 | 1999-01-20 | Ultra Electronics Ltd | Rotary apparatus |
| US5921502A (en) * | 1996-06-19 | 1999-07-13 | Cox & Company, Inc. | Hybrid ice-protection system for use on roughness-sensitive airfoils |
| JP2000115881A (ja) * | 1998-10-05 | 2000-04-21 | Matsushita Electric Ind Co Ltd | 集音装置 |
| US6971761B2 (en) | 2003-07-24 | 2005-12-06 | Armament Systems And Procedures, Inc. | Protective flashlight case |
| FR2863586B1 (fr) * | 2003-12-12 | 2007-01-19 | Eurocopter France | Dispositif de degivrage/antigivrage modulaire d'une surface aerodynamique. |
| CA2515276A1 (fr) * | 2004-08-23 | 2006-02-23 | Goodrich Corporation | Aile d'aeronef |
| US7276703B2 (en) * | 2005-11-23 | 2007-10-02 | Lockheed Martin Corporation | System to monitor the health of a structure, sensor nodes, program product, and related methods |
-
2007
- 2007-06-07 FR FR0704090A patent/FR2917066B1/fr active Active
-
2008
- 2008-06-05 US US12/438,633 patent/US20090289147A1/en not_active Abandoned
- 2008-06-05 EP EP08805648A patent/EP2152581A2/fr not_active Withdrawn
- 2008-06-05 WO PCT/FR2008/000760 patent/WO2009004184A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009004184A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009004184A3 (fr) | 2009-02-19 |
| FR2917066B1 (fr) | 2010-05-21 |
| FR2917066A1 (fr) | 2008-12-12 |
| US20090289147A1 (en) | 2009-11-26 |
| WO2009004184A2 (fr) | 2009-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20090219 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| 17Q | First examination report despatched |
Effective date: 20100319 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: DASSAULT AVIATION Owner name: MESSIER-BUGATTI-DOWTY |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20110913 |