CN116678462A - Fuel control system of aero-engine and fuel metering device thereof - Google Patents
Fuel control system of aero-engine and fuel metering device thereof Download PDFInfo
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- CN116678462A CN116678462A CN202210160946.9A CN202210160946A CN116678462A CN 116678462 A CN116678462 A CN 116678462A CN 202210160946 A CN202210160946 A CN 202210160946A CN 116678462 A CN116678462 A CN 116678462A
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- fuel
- calibration curve
- engine
- metering device
- fuel metering
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- 239000000446 fuel Substances 0.000 title claims abstract description 133
- 238000011088 calibration curve Methods 0.000 claims abstract description 85
- 230000015654 memory Effects 0.000 claims abstract description 69
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000006870 function Effects 0.000 abstract description 5
- 230000006386 memory function Effects 0.000 description 7
- 238000012795 verification Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The application provides an aeroengine fuel control system and a fuel metering device thereof, wherein the fuel metering device comprises: a linear displacement sensor; the calibration curve memory unit is respectively in communication connection with the linear displacement sensor and an engine electronic controller of the fuel control system of the aeroengine, and is configured to store a calibration curve used for representing and adjusting and recording the relation between the voltage of the linear displacement sensor and the fuel demand of the engine; after the electronic engine controller is electrified, the electronic engine controller reads the calibration curve stored in the calibration curve memory unit so as to enable the calibration curve in the electronic engine controller to be consistent with the calibration curve in the calibration curve memory unit. The application has the functions of checking and memorizing and certain intelligence, can keep the consistency of the checking curve, eliminates the difference, thereby improving the matching performance and further improving the performance of the engine.
Description
Technical Field
The application relates to the technical field of aero-engines, in particular to an aero-engine fuel control system and a fuel metering device with a verification memory function.
Background
The technical development direction of civil aero-engines is towards low carbon and intelligent, and simultaneously the intelligent technology also promotes the development of low carbon technology of aero-engines. The intellectualization of the engine puts forward new intellectualization demands on the electronic hardware, software and execution mechanisms of the control system, and promotes the generation and use of new intellectualized execution mechanisms and devices.
In the Full Authority Digital Engine Control (FADEC) system currently used by aeroengines, the main components are the Engine Electronic Controller (EEC), the fuel pump and the fuel metering device (FMU). The formed system works together to complete the control function of the fuel flow of the aero-engine, and each type of engine determines an optimized fuel supply rule during research and development, and the fuel supply rule is stored in the electronic controller in the form of a calibration curve. The calibration curve specifies the relationship between the position of the fuel metering valve in the fuel metering device and the amount of fuel supplied to the engine.
During use of an aeroengine, it is common for the outfield to replace a new fuel metering device or to string other spare parts of the used fuel metering device. In addition, after the fuel metering device enters a repair shop for repair, the calibration curve of the original fuel metering device is often changed. The cause of the variation is, for new fuel metering devices, due to the non-uniformity of the machining of the parts. For the repaired fuel metering device, the hydraulic components, the springs and the electrohydraulic interface components are replaced due to abrasion of the valve matching parts, and the work can lead to the change of the calibration curve.
However, the calibration curve stored in the electronic controller does not change, and therefore mechanical adjustment compensation is often required when the engine is tested on the ground after replacement of a new or repaired fuel metering device. Such adjustments often result in poor matching of the fuel metering device to a calibration curve stored in the electronic engine controller due to limited parameters that can be monitored, thereby resulting in less than optimal engine performance.
Disclosure of Invention
The main object of the present application is to provide a new fuel control system for an aeroengine and a fuel metering device thereof, which are capable of improving the above-mentioned drawbacks of the prior art.
The application solves the technical problems by the following technical scheme:
as one aspect of the present application, there is provided a fuel metering device for an aircraft engine fuel control system, comprising:
a linear displacement sensor;
the calibration curve memory unit is respectively in communication connection with the linear displacement sensor and an engine electronic controller of the aeroengine fuel control system, and is configured to store a calibration curve used for representing and adjusting and recording the relation between the voltage of the linear displacement sensor and the fuel demand of the engine;
and after the electronic engine controller is electrified, the electronic engine controller reads the calibration curve stored in the calibration curve memory unit so as to enable the calibration curve in the electronic engine controller to be consistent with the calibration curve in the calibration curve memory unit.
As an optional implementation manner, the calibration curve memory unit comprises a first calibration curve memory module and a second calibration curve memory module;
the first calibration curve memory module corresponds to a first channel of the linear displacement sensor, and the second calibration curve memory module corresponds to a second channel of the linear displacement sensor;
the first calibration curve memory module and the second calibration curve memory module are respectively in communication connection with the engine electronic controller.
As an alternative implementation manner, the first calibration curve memory module and the second calibration curve memory module are both read-write memories.
As an alternative embodiment, the read-write memory includes an electrically erasable programmable read-only memory.
As an alternative embodiment, after the engine electronic controller reads the calibration curve stored in the calibration curve memory unit, the engine electronic controller is configured to store the calibration curve in a nonvolatile memory of the engine electronic controller.
As an alternative embodiment, the electronic engine controller is further configured to calculate a fuel demand of the engine based on the calibration curve according to the acquired fuel quantity calculation parameter, and output a fuel supply control command to the fuel metering device according to the fuel demand.
As an alternative embodiment, the fuel metering device is further configured to control the displacement of the fuel metering valve according to the fuel supply control command after receiving the fuel supply control command, so as to control the fuel supply amount to the combustion chamber of the engine.
As an alternative embodiment, the oil quantity calculation parameter includes any one or more of throttle lever command, external environment temperature, air pressure and flight mach number.
As another aspect of the present application, there is provided an aircraft engine fuel control system comprising a fuel metering device of the aircraft engine fuel control system as described above and an engine electronic controller.
As an optional implementation manner, the fuel control system of the aero-engine further comprises a fuel pump and a fuel nozzle, and the fuel metering device is respectively connected with the fuel pump and the fuel nozzle.
Other aspects of the present disclosure will be appreciated by those skilled in the art in light of the present disclosure.
The application has the positive progress effects that:
the fuel control system of the aeroengine and the fuel metering device thereof provided by the application have the functions of checking and memorizing and certain intelligence, and after the fuel metering device or the electronic engine controller is replaced, the electronic engine controller can still effectively read the checking curve stored in the fuel metering device, so that the consistency of the checking curve is maintained, the difference is effectively eliminated, the matching property is improved, and the performance of the engine is further improved.
Drawings
The features and advantages of the present application will be better understood after reading the detailed description of embodiments of the application in conjunction with the following drawings. In the drawings, the components are not necessarily to scale and components having similar related features or characteristics may have the same or similar reference numerals.
Fig. 1 is a schematic diagram of the main structure of an aircraft engine fuel control system according to a preferred embodiment of the present disclosure.
Fig. 2 is a schematic diagram showing the main structure of a fuel metering device of an aircraft engine fuel control system according to a preferred embodiment of the present application when a calibration curve is written on a test bench.
Detailed Description
The application is further illustrated by means of the following examples, which are not intended to limit the scope of the application.
It should be noted that references in the specification to "one embodiment," "an alternative embodiment," "another embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
In the description of the present disclosure, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present disclosure and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more. In addition, the term "include" and any variations thereof are intended to cover a non-exclusive inclusion.
In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the context of the present application will be understood in a specific case by those of ordinary skill in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In order to overcome the above-mentioned drawbacks existing at present, the present embodiment provides a fuel metering device of an aircraft engine fuel control system, including: a linear displacement sensor; the calibration curve memory unit is respectively in communication connection with the linear displacement sensor and an engine electronic controller of the fuel control system of the aeroengine, and is configured to store a calibration curve used for representing and adjusting and recording the relation between the voltage of the linear displacement sensor and the fuel demand of the engine; when the electronic engine controller is electrified, the electronic engine controller reads the calibration curve stored in the calibration curve memory unit so that the calibration curve in the electronic engine controller is consistent with the calibration curve in the calibration curve memory unit.
In this embodiment, a fuel metering device of an aeroengine fuel control system with a check memory function and a certain intelligent function is provided, after the fuel metering device or an engine electronic controller is replaced, the engine electronic controller can still effectively read a check curve stored in the fuel metering device, so that consistency of the check curve is maintained, variability is effectively eliminated, and accordingly matching is improved, and performance of an engine is further improved.
As a preferred embodiment, this embodiment provides an aero-engine fuel control system, as shown in fig. 1, which mainly includes a fuel pump 1, a fuel metering device 2, an engine electronic controller 3, and a fuel nozzle 4 (which may be a fuel nozzle group), where the fuel metering device 2 is connected to the fuel pump 1 and the fuel nozzle 4, respectively.
The fuel metering device 2 mainly comprises a linear displacement sensor 21 (LVDT) and a calibration curve memory unit, wherein the calibration curve memory unit comprises a first calibration curve memory module 221 and a second calibration curve memory module 222, the first calibration curve memory module 221 corresponds to a first channel of the linear displacement sensor 21, the second calibration curve memory module 222 corresponds to a second channel of the linear displacement sensor 21, and the first calibration curve memory module 221 and the second calibration curve memory module 222 are respectively in communication connection with the engine electronic controller 3.
In this embodiment, the first calibration curve memory module 221 and the second calibration curve memory module 222 are both read-write memories.
As a preferred embodiment, the read-write memory may be an electrically erasable programmable read-only memory (EEPROM), but the embodiment is not particularly limited to the type of the read-write memory, and may be selected and adjusted according to actual needs or needs that may occur.
The first calibration curve memory module 221 and the second calibration curve memory module 222 are respectively configured to store calibration curves for characterizing the relationship between the voltage of the adjustment and recording linear displacement sensor and the oil demand of the engine.
Specifically, the fuel metering device with the checking and memorizing function provided in the present embodiment designs two memorizing modules, namely a first checking curve memorizing module 221 and a second checking curve memorizing module 222. The memory module can be duplicated many times in an electronic way, and has four working modes: read, write, erase and verify. The electronic engine controller and the test bench can read, pattern, erase and verify the memory according to the working requirements.
When the engine electronic controller 3 is powered on, the engine electronic controller 3 reads the calibration curves stored in the first calibration curve memory module 221 and the second calibration curve memory module 222, and the engine electronic controller 3 is configured to store the calibration curves in a nonvolatile memory (NVM) of the engine electronic controller so that the calibration curves in the engine electronic controller 3 are consistent with the calibration curves of the first calibration curve memory module 221 and the second calibration curve memory module 222.
The engine electronic controller 3 is further configured to calculate a fuel demand of the engine based on the calibration curve according to the acquired fuel quantity calculation parameter, and output a fuel supply control command to the fuel metering device 2 according to the fuel demand, and the fuel metering device 2 is further configured to control displacement of the fuel metering valve according to the fuel supply control command after receiving the fuel supply control command, so as to control the fuel supply to the combustion chamber of the engine.
In this embodiment, the oil quantity calculation parameters include any one or more of throttle lever command, external environment temperature, air pressure and flight mach number, but the embodiment is not particularly limited to the type of the oil quantity calculation parameters, and may be selected and adjusted accordingly according to actual requirements or requirements that may occur.
Specifically, when the engine of the fuel metering device 2 equipped with the check memory function is started for the first time, after the power is applied to the engine electronic controller 3, the check curves stored in the first check curve memory module 221 and the second check curve memory module 222 are read, respectively, and stored in the engine electronic controller 3. The subsequent engine electronic controller 3 calculates the fuel demand of the engine according to the throttle lever instruction of the pilot, the external environment temperature, the air pressure, the flight Mach number and the like, and controls the displacement (opening) of the fuel metering valve in the fuel metering device 2 according to the fuel demand, thereby controlling the fuel supply to the combustion chamber of the engine. During use of the aeroengine, if the fuel metering device 2 or the engine electronic controller 3 is replaced, its first operation is as described above.
Referring to fig. 2, when the fuel metering device product with the check memory function performs flow check on the factory test bench, the relation between the voltages of the first channel and the second channel of the linear displacement sensor in the recording device and the fuel demand of the engine, namely, the check curve, is adjusted. And after verification is performed on the test bench, the test bench is written into a first verification curve memory module 221 (a first channel) and a second verification curve memory module 222 (a second channel), and the verification curves are stored in the electrically erasable programmable read-only memory. If the data exists in the memory, the original data is required to be erased by powering on, and the situation occurs when the factory is returned for repair, such as the repair of the fuel metering device with the check memory function and the factory of the electronic controller of the engine.
The aeroengine fuel control system and the fuel metering device thereof provided by the embodiment mainly have the following beneficial effects:
1. the difference of the calibration curves generated when the fuel metering device is replaced and the electronic controller of the engine is replaced in the aeroengine is eliminated, the consistency of the calibration curves is maintained, and the performance stability of the engine is effectively ensured;
2. the fuel metering device has a verification and memory function, so that the fuel metering device is favorable for optimizing the fuel supply rule of the engine during development and development, and can be used for trend tracking and prediction of the engine health management system;
3. the technology of installing the fuel metering device with the checking memory function is more advanced and has more market competitiveness.
While specific embodiments of the application have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the application is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the application, but such changes and modifications fall within the scope of the application.
Claims (10)
1. A fuel metering device for an aircraft engine fuel control system, comprising:
a linear displacement sensor;
the calibration curve memory unit is respectively in communication connection with the linear displacement sensor and an engine electronic controller of the aeroengine fuel control system, and is configured to store a calibration curve used for representing and adjusting and recording the relation between the voltage of the linear displacement sensor and the fuel demand of the engine;
and after the electronic engine controller is electrified, the electronic engine controller reads the calibration curve stored in the calibration curve memory unit so as to enable the calibration curve in the electronic engine controller to be consistent with the calibration curve in the calibration curve memory unit.
2. The fuel metering device of claim 1, wherein the calibration curve memory unit comprises a first calibration curve memory module and a second calibration curve memory module;
the first calibration curve memory module corresponds to a first channel of the linear displacement sensor, and the second calibration curve memory module corresponds to a second channel of the linear displacement sensor;
the first calibration curve memory module and the second calibration curve memory module are respectively in communication connection with the engine electronic controller.
3. The fuel metering device of claim 2, wherein the first calibration curve memory module and the second calibration curve memory module are both read-write memories.
4. A fuel metering device as claimed in claim 3 wherein the read-write memory comprises an electrically erasable programmable read-only memory.
5. The fuel metering device of claim 1, wherein after the engine electronic controller reads the calibration curve stored in the calibration curve memory unit, the engine electronic controller is configured to store the calibration curve in a nonvolatile memory of the engine electronic controller.
6. The fuel metering device of claim 1, wherein the engine electronic controller is further configured to calculate a fuel demand of the engine from the acquired fuel quantity calculation parameter based on the calibration curve, and output a fuel supply control instruction to the fuel metering device according to the fuel demand.
7. The fuel metering device of claim 6, wherein the fuel metering device is further configured to control displacement of the fuel metering flapper to control fuel delivery to the engine combustion chamber in accordance with the fueling control command upon receipt of the fueling control command.
8. The fuel metering device of claim 6, wherein the fuel quantity calculation parameter comprises any one or more of throttle lever command, ambient temperature, air pressure, and flight mach number.
9. An aircraft engine fuel control system comprising a fuel metering device of an aircraft engine fuel control system according to any one of claims 1 to 8 and an engine electronic controller.
10. The aircraft engine fuel control system of claim 9, further comprising a fuel pump and a fuel nozzle, wherein the fuel metering device is coupled to the fuel pump and the fuel nozzle, respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160946.9A CN116678462A (en) | 2022-02-22 | 2022-02-22 | Fuel control system of aero-engine and fuel metering device thereof |
| PCT/CN2022/115957 WO2023159903A1 (en) | 2022-02-22 | 2022-08-30 | Aero engine fuel control system and fuel metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160946.9A CN116678462A (en) | 2022-02-22 | 2022-02-22 | Fuel control system of aero-engine and fuel metering device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116678462A true CN116678462A (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210160946.9A Pending CN116678462A (en) | 2022-02-22 | 2022-02-22 | Fuel control system of aero-engine and fuel metering device thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116678462A (en) |
| WO (1) | WO2023159903A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118532278A (en) * | 2024-07-15 | 2024-08-23 | 西北工业大学 | Engine oil supply curve calibration system, method and device and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1138912A1 (en) * | 2000-04-01 | 2001-10-04 | Robert Bosch GmbH | Online optimization of injection systems having piezoelectric elements |
| CN1279335C (en) * | 2005-01-21 | 2006-10-11 | 上海自动化仪表股份有限公司 | Method for reducing return error of tubular float level transducer |
| RU2339009C2 (en) * | 2006-12-07 | 2008-11-20 | Общество с ограниченной ответственностью "ООО "ФЕРРУМ" | Method for compensation of fuel tank level pickup reading error and onboard computer to this effect |
| FR2932534B1 (en) * | 2008-06-12 | 2010-06-11 | Renault Sas | DEVICE AND METHOD FOR CORRECTING VALUES DELIVERED BY A FLOWMETER EQUIPPED WITH AN INTERNAL COMBUSTION ENGINE |
| FR2951774B1 (en) * | 2009-10-27 | 2012-08-31 | Peugeot Citroen Automobiles Sa | PNEUMATIC CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING SUCH A DEVICE |
| CN202140213U (en) * | 2011-06-16 | 2012-02-08 | 中航商用航空发动机有限责任公司 | Aeroengine fuel oil plunger pump with booster stage |
-
2022
- 2022-02-22 CN CN202210160946.9A patent/CN116678462A/en active Pending
- 2022-08-30 WO PCT/CN2022/115957 patent/WO2023159903A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118532278A (en) * | 2024-07-15 | 2024-08-23 | 西北工业大学 | Engine oil supply curve calibration system, method and device and electronic equipment |
Also Published As
| Publication number | Publication date |
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| WO2023159903A1 (en) | 2023-08-31 |
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