WO2009024688A2 - Système de système de commande d'au moins un actionneur de capots d'un inverseur de poussée pour turboréacteur et procédé de test du système - Google Patents
Système de système de commande d'au moins un actionneur de capots d'un inverseur de poussée pour turboréacteur et procédé de test du système Download PDFInfo
- Publication number
- WO2009024688A2 WO2009024688A2 PCT/FR2008/000977 FR2008000977W WO2009024688A2 WO 2009024688 A2 WO2009024688 A2 WO 2009024688A2 FR 2008000977 W FR2008000977 W FR 2008000977W WO 2009024688 A2 WO2009024688 A2 WO 2009024688A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- test
- component
- control
- components
- test cycle
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/54—Nozzles having means for reversing jet thrust
- F02K1/64—Reversing fan flow
- F02K1/70—Reversing fan flow using thrust reverser flaps or doors mounted on the fan housing
- F02K1/72—Reversing fan flow using thrust reverser flaps or doors mounted on the fan housing the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/54—Nozzles having means for reversing jet thrust
- F02K1/76—Control or regulation of thrust reversers
- F02K1/763—Control or regulation of thrust reversers with actuating systems or actuating devices; Arrangement of actuators for thrust reversers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/54—Nozzles having means for reversing jet thrust
- F02K1/76—Control or regulation of thrust reversers
- F02K1/766—Control or regulation of thrust reversers with blocking systems or locking devices; Arrangement of locking devices for thrust reversers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/80—Diagnostics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Definitions
- the present invention relates to a control system of at least one hood actuator of a turbojet engine thrust reverser and to a method of testing such a system.
- the role of a thrust reverser during the landing of an aircraft is to improve the braking capacity of an aircraft by redirecting forward at least a portion of the thrust generated by the turbojet engine.
- the inverter obstructs the gas ejection nozzle and directs the ejection flow of the engine towards the front of the nacelle, thereby generating a counter-thrust which is added to the braking of the wheels of the engine. 'plane.
- the means implemented to achieve this reorientation of the flow vary according to the type of inverter.
- the structure of an inverter comprises movable covers movable between, on the one hand, an extended position in which they open in the nacelle a passage intended for the deflected flow, and on the other hand, a position retraction in which they close this passage.
- These mobile hoods may furthermore perform a deflection function or simply the activation of other deflection means.
- the movable hoods slide along rails so that when backing up during the opening phase, they discover deflection vane grids arranged in the thickness of the nacelle .
- a linkage system connects the movable hood to blocking doors that expand within the ejection channel and block the output in direct flow.
- each movable hood pivots so as to block the flow and deflect it and is therefore active in this reorientation.
- these mobile covers are actuated by hydraulic or pneumatic cylinders which require a network for transporting a fluid under pressure.
- This fluid under pressure is conventionally obtained either by tapping air on the turbojet engine in the case of a pneumatic system or by sampling from the hydraulic circuit of the aircraft.
- Such systems require significant maintenance because the slightest leak in the hydraulic or pneumatic network can be difficult to detect and risk to have damaging consequences both on the reverse and on other parts of the nacelle.
- the establishment and protection of such a circuit are particularly delicate and cumbersome.
- manufacturers of thrust reversers have sought to replace them and to equip as much as possible their inverters electromechanical actuators, lighter and more reliable.
- Such an inverter is described in document EP 0 843089.
- the electromechanical actuators also have several disadvantages that it is necessary to solve to take full advantage of the advantages they bring in terms of weight gain and bulk.
- the electromechanical actuators require the use of a complete electrical and mechanical control system comprising the actuators, power and control components, as well as sensors, all of these components may have failures.
- thrust reverser It is then necessary to carry out one or more deployments of the thrust reverser to enable the behavior of the component to be verified, by ascertaining whether the operation of the latter has an influence on the overall operation of the actuator control system. thrust reverser.
- This type of verification causes overall wear of the actuator control system and involves performing deployment cycles of the actuator that require compliance with specific safety instructions.
- the subject of the present invention is a system for controlling at least one actuator of covers of a thrust reverser for a turbojet comprising a set of actuating and / or controlling components comprising at least at least one hood actuator driven by at least one electric motor, and actuator and electric motor control means, characterized in that the control means comprise test means comprising an interface for receiving test requests from a user, and in that the test means are arranged to proceed, upon receipt of a test request, to a test cycle of one or more system components including isolated actuation of the component (s) relative to the other components of the system.
- the interface of the test means is connected via communication means to the control system of the aircraft.
- the test means are arranged to repetitively perform a test cycle on a component of the system. These provisions make it possible in particular to highlight faults that do not occur in a systematic manner with each use of a component. By multiplying the number of times a component is used in multiple test cycles, the probability of experiencing failure increases.
- the test means are arranged so that the actions controlled on a component during a test cycle bring the component back to its initial state at the end of the test cycle.
- the test means are arranged to perform, during a test cycle, a command on a component with a power value lower than that used in normal operation.
- test means are arranged so that the control of a component is performed via the same part of the control means during a test cycle and during normal operation.
- the system comprises a hood latch, and a test cycle corresponds to an opening and closing of the latch.
- the system includes a motor brake, and a test cycle includes activation and deactivation of the motor brake.
- test means comprise a set of program instructions executed by the control means.
- the system comprises at least one sensor of a magnitude representative of the operation of a component, and the result of a test cycle is obtained by analyzing the signal supplied by the sensor.
- the present invention also relates to a method of testing a control system of at least one turbojet engine thrust reverser cowl actuator comprising the steps of receiving a request to perform the test of a component coming from a turbojet thrust reverser. a user, and performing actuation control of one or more components of the thrust reverser control system in isolation from other components of the system.
- the step of controlling an action is performed repetitively.
- the control of the action on a tested component is performed with a power value lower than that used in normal operation.
- Figure 1 is a partial schematic perspective view of a nacelle incorporating a thrust reverser grid.
- Figure 2 is a schematic representation of the movable covers and their actuating system.
- Figure 3 is a schematic representation of the control system actuators movable covers.
- Figure 4 is a flowchart of a method according to the invention.
- FIG. 1 shows a partial schematic view of a nacelle incorporating a thrust reverser 1.
- the turbojet engine is not shown.
- This thrust reverser 1 has a structure comprising two semi-circular mobile covers 2 slidable to discover deflection vane grids 3 placed between the movable covers 2 and a passage section of the airflow 4 to be deflected.
- Locking doors 5 are arranged inside the structure so as to be pivotable and move from a position in which they do not interfere with the passage of the air flow 4 to a position in which they block this passage.
- the displacement of the movable covers 2 along the outside of the structure is ensured by a set of jacks 6a, 6b mounted on a front frame inside which are housed an electric motor 7 and flexible transmission shafts 8a, 8b respectively connected to the cylinders 6a, 6b to actuate.
- Each movable cover 2 can be translated under the action of three jacks 6a, 6b, comprising a central jack 6a and two additional jacks 6b, actuated by a single electric motor 7 connected to control means 9, comprising a microcontroller.
- the power delivered by the electric motor 7 is first distributed to the central cylinders 6a via two flexible transmission shafts 8a, then to the additional cylinders 6b by flexible transmission shafts 8b.
- only two up and down jacks are used for each hood, actuated by a single electric motor connected to a control interface.
- the power delivered by the electric motor is distributed to the two up and down cylinders via two flexible transmission shafts 8a.
- Figure 3 schematically shows a control system of the actuation of two covers with for each hood two actuators up and down.
- a control system of the actuators of a thrust reverser according to the invention comprises control means constituted by a microcontroller 9.
- This microcontroller is connected by communication means 10 to the control system 12 of the aircraft.
- the control system also comprises a power stage 13 connected to the power supply network 14 of the aircraft.
- the microcontroller 9 allows the control of an electric motor 7 and cylinders or actuators 6 as previously described.
- the engine also comprises a brake 15 also controlled by the microcontroller 9.
- Some of the actuators 6 are equipped with position sensors 16 making it possible to know the displacement of the actuator 6 between the open and closed position.
- the motor and / or the brake are equipped with position sensors 17 which also make it possible to know the direction of movement of the actuators 6 and thus the covers 2.
- the microcontroller 9 also controls the opening and closing of a cover latch 18, called the primary latch. This latch prevents the unwanted opening of the cover 2.
- This latch 18 is associated with a proximity sensor sensor 19 indicating the position of the mobile part of the latch 18.
- the microcontroller 9 comprises test means 20 on at least a part components of the system, an interface 22 between the test means and the communication means 10, the test means being arranged to carry out a test cycle of a component on a request from the control system of the aircraft, controlled by a user.
- the test means 20 are arranged to repetitively perform an action / a test cycle on a component of the system, according to parameters of the test cycle bringing the component back to its initial state at the end of the test cycle, so as to allow it to be looped without damaging other system components.
- a control on a component with a power value lower than that used in normal operation the control being carried out via the same part of the control means 9.
- a first example of a test can be performed with respect to a primary latch 18.
- Each test cycle corresponds to an opening and then closing of the latch 18.
- This latch 18 comprises a coil intended to create a magnetic field for driving a mobile part of the latch 18. It is possible by controlling successive cycles of excitation of the coil to check the opening and closing of the latch 18. The verification of the opening and closing of the lock is performed by checking a signal from proximity sensor 19.
- test cycle is obtained by analyzing the signal provided by a sensor 19 of a magnitude representative of the operation of a component.
- a second example of a test relates to the brake 15 of the engine 7.
- each test cycle comprises an activation and a deactivation of the engine brake 15.
- FIG. 4 A diagram summarizing the steps of a method of controlling at least one hood actuator of a thrust reverser according to the invention is shown in FIG. 4.
- This method comprises a first step E1 of receiving a request to perform the test of a component from the control system of the aircraft.
- the test means 20 perform a control of an action of a component of the control system of the thrust reverser or a subset of the system comprising a set of components.
- the control of the action on a tested component is performed with a power value lower than that used in normal operation.
- a verification of the test results is performed, for example using a sensor 19, as described previously,
- a fourth step E4 an analysis of the test results is performed by the test means 20 to identify a possible failure.
- steps E2 to E4 can be performed repeatedly to detect faults that do not reproduce systematically.
- test results are communicated to the control system of the aircraft 12 via the interface 22 and the communication means 20.
- test means 20 comprise a set of program instructions executed by the control means.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Of Engines (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2693356A CA2693356A1 (fr) | 2007-08-20 | 2008-07-07 | Systeme de systeme de commande d'au moins un actionneur de capots d'un inverseur de poussee pour turboreacteur et procede de test du systeme |
| EP08827885.8A EP2181371B1 (fr) | 2007-08-20 | 2008-07-07 | Systeme de commande d'au moins un actionneur de capots d'un inverseur de poussee pour turboreacteur et procede de test du systeme |
| US12/673,823 US8831900B2 (en) | 2007-08-20 | 2008-07-07 | System for controlling at least one actuator for thrust reverser cowlings on a turbojet engine and method for testing said system |
| ES08827885T ES2421209T3 (es) | 2007-08-20 | 2008-07-07 | Sistema de mando de por lo menos un accionador de capós de un inversor de empuje para turborreactor, y procedimiento de ensayo del sistema |
| BRPI0813607A BRPI0813607A2 (pt) | 2007-08-20 | 2008-07-07 | sistema para controlar pelo menos um atuador de carenagens e método para testar um sistema para controlar pelo menos um atuador de carenagens |
| CN200880102553.0A CN101815973B (zh) | 2007-08-20 | 2008-07-07 | 控制一涡轮喷气发动机上推力反向器整流罩的至少一致动器的系统以及用于测试此系统的方法 |
| RU2010109795/06A RU2492518C2 (ru) | 2007-08-20 | 2008-07-07 | Система управления, по меньшей мере, одним приводом капотов реверсора тяги для турбореактивного двигателя и способ тестирования системы |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0705924A FR2920201B1 (fr) | 2007-08-20 | 2007-08-20 | Systeme de commande d'au moins un actionneur de capots d'un inverseur de poussee pour turboreacteur et procede de test du systeme |
| FR0705924 | 2007-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009024688A2 true WO2009024688A2 (fr) | 2009-02-26 |
| WO2009024688A3 WO2009024688A3 (fr) | 2009-04-23 |
Family
ID=39220742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2008/000977 Ceased WO2009024688A2 (fr) | 2007-08-20 | 2008-07-07 | Système de système de commande d'au moins un actionneur de capots d'un inverseur de poussée pour turboréacteur et procédé de test du système |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8831900B2 (fr) |
| EP (1) | EP2181371B1 (fr) |
| CN (1) | CN101815973B (fr) |
| BR (1) | BRPI0813607A2 (fr) |
| CA (1) | CA2693356A1 (fr) |
| ES (1) | ES2421209T3 (fr) |
| FR (1) | FR2920201B1 (fr) |
| RU (1) | RU2492518C2 (fr) |
| WO (1) | WO2009024688A2 (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2958689B1 (fr) * | 2010-04-12 | 2012-04-20 | Aircelle Sa | Systeme de commande d'un dispositif electrique d'une nacelle |
| GB2489248A (en) * | 2011-03-22 | 2012-09-26 | Edwards Ltd | Vacuum pump with stator joint seals |
| FR2978801B1 (fr) * | 2011-08-05 | 2016-03-04 | Snecma | Procede de surveillance des moyens de verrouillage d'un systeme electrique d'inversion de poussee pour turbomachine |
| FR2995079B1 (fr) * | 2012-08-31 | 2014-09-26 | Aircelle Sa | Procede et dispositif de test d’un systeme d’actionnement d’une structure mobile d’un inverseur de poussee |
| FR2999656B1 (fr) * | 2012-12-17 | 2017-11-17 | Snecma | Optimisation de la disponibilite d'un inverseur de poussee |
| FR3016191B1 (fr) * | 2014-01-08 | 2019-07-05 | Safran Aircraft Engines | Procede et programme d'ordinateur pour la surveillance d'un inverseur de poussee a actionneurs hydrauliques |
| US9951717B2 (en) * | 2015-04-15 | 2018-04-24 | Hamilton Sundstrand Corporation | Asymmetric load compensation system |
| US10483880B2 (en) * | 2016-10-10 | 2019-11-19 | The Boeing Company | Multiple electromechanical actuator control system |
| FR3130383B1 (fr) * | 2021-12-10 | 2024-06-14 | Safran Nacelles | Procédé de diagnostic numérique d’un système d’actionneurs électromécaniques d’un aéronef en maintenance |
| FR3138477B1 (fr) * | 2022-07-26 | 2026-05-01 | Safran Nacelles | Inverseur de poussee comprenant un systeme ameliore d’actionnement en translation de la structure mobile de l’inverseur |
| CN118518252A (zh) * | 2023-02-17 | 2024-08-20 | 空中客车运营简化股份公司 | 压力测量耙、包括压力测量耙的发动机和包括发动机的飞行器 |
| FR3148262B1 (fr) * | 2023-04-27 | 2025-04-25 | Safran Nacelles | Système d’inversion de poussée pour un aéronef, installation et aéronef associés |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3046730A (en) * | 1960-09-21 | 1962-07-31 | Marquardt Corp | Variable area exit nozzle |
| US3279182A (en) * | 1965-06-07 | 1966-10-18 | Gen Electric | Thrust reverser |
| GB2238516B (en) * | 1980-09-01 | 1991-08-28 | Rolls Royce | Gas turbine engine |
| US4782292A (en) * | 1984-04-23 | 1988-11-01 | Hr Textron, Inc. | Portable servoactuator test system |
| JPS6388231A (ja) * | 1986-09-30 | 1988-04-19 | Sanshin Ind Co Ltd | 船外機エンジンの速度制御装置 |
| US5337262A (en) * | 1991-12-03 | 1994-08-09 | Hr Textron Inc. | Apparatus for and method of testing hydraulic/pneumatic apparatus using computer controlled test equipment |
| US5638383A (en) * | 1992-07-24 | 1997-06-10 | Trw Inc. | Advanced integrated avionics testing system |
| FR2755730B1 (fr) * | 1996-11-14 | 1999-01-08 | Hispano Suiza Sa | Systeme de commande electrique pour inverseur de poussee de turboreacteur |
| DE60021585D1 (de) * | 2000-12-18 | 2005-09-01 | Techspace Aero Sa | Prüfstand für Schubumkehr |
| US7946106B2 (en) * | 2004-06-29 | 2011-05-24 | Aircelle | Device for actuating mobile cowls equipping a thrust reverser |
| CN2748385Y (zh) * | 2004-09-24 | 2005-12-28 | 上海沪特航空技术有限公司 | 机载设备综合检测系统 |
| FR2887301B1 (fr) * | 2005-06-16 | 2007-08-31 | Aircelle Sa | Systeme de commande electronique pour nacelle |
| FR2920200B1 (fr) * | 2007-08-20 | 2013-10-04 | Aircelle Sa | Procede et systeme de commande d'au moins un actionneur de capots d'un inverseur de poussee pour turboreacteur |
-
2007
- 2007-08-20 FR FR0705924A patent/FR2920201B1/fr not_active Expired - Fee Related
-
2008
- 2008-07-07 US US12/673,823 patent/US8831900B2/en active Active
- 2008-07-07 ES ES08827885T patent/ES2421209T3/es active Active
- 2008-07-07 CA CA2693356A patent/CA2693356A1/fr not_active Abandoned
- 2008-07-07 WO PCT/FR2008/000977 patent/WO2009024688A2/fr not_active Ceased
- 2008-07-07 BR BRPI0813607A patent/BRPI0813607A2/pt not_active IP Right Cessation
- 2008-07-07 EP EP08827885.8A patent/EP2181371B1/fr active Active
- 2008-07-07 RU RU2010109795/06A patent/RU2492518C2/ru not_active IP Right Cessation
- 2008-07-07 CN CN200880102553.0A patent/CN101815973B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| None |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2492518C2 (ru) | 2013-09-10 |
| EP2181371A2 (fr) | 2010-05-05 |
| FR2920201A1 (fr) | 2009-02-27 |
| CN101815973A (zh) | 2010-08-25 |
| BRPI0813607A2 (pt) | 2019-04-30 |
| FR2920201B1 (fr) | 2013-08-23 |
| US20110022345A1 (en) | 2011-01-27 |
| CA2693356A1 (fr) | 2009-02-26 |
| CN101815973B (zh) | 2014-06-25 |
| RU2010109795A (ru) | 2011-09-27 |
| ES2421209T3 (es) | 2013-08-29 |
| US8831900B2 (en) | 2014-09-09 |
| EP2181371B1 (fr) | 2013-05-22 |
| WO2009024688A3 (fr) | 2009-04-23 |
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