CN110671212B - Turbofan engine control system and method based on rapid prototyping machine - Google Patents
Turbofan engine control system and method based on rapid prototyping machine Download PDFInfo
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- CN110671212B CN110671212B CN201911006935.XA CN201911006935A CN110671212B CN 110671212 B CN110671212 B CN 110671212B CN 201911006935 A CN201911006935 A CN 201911006935A CN 110671212 B CN110671212 B CN 110671212B
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- 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
- F02C9/48—Control of fuel supply conjointly with another control of the plant
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- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
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- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/264—Ignition
- F02C7/266—Electric
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- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
- F02C7/27—Fluid drives
- F02C7/272—Fluid drives generated by cartridges
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- 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
- G01M15/02—Details or accessories of testing apparatus
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- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a turbofan engine control system and method based on a rapid prototyping machine, and belongs to the technical field of engines. The invention establishes a turbofan engine control system by using a universal rapid prototype, and realizes various control functions of engine oil supply, ignition, protection and the like. Meanwhile, the system has the advantages of good universality, strong expansion capability, short development period and low cost, is suitable for rapid development of the engine control system in the early stage of development, and can greatly reduce the development cost and shorten the development period.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a turbofan engine control system and method based on a rapid prototyping machine.
Background
The engine control system is a core component of the turbofan engine and is used for realizing functions of engine control rule calculation, fuel control, ignition control and the like. The traditional turbofan engine control system is developed by taking an electronic controller as a core, but the development of the special engine electronic controller has high cost, long period and poor universality, and cannot meet the requirement of rapid development of the engine.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to design a turbofan engine control system and method which can meet various control functions of the engine.
(II) technical scheme
In order to solve the technical problem, the invention provides a turbofan engine control system based on a rapid prototyping machine, which comprises a rapid prototyping machine 1, an electric pump 2, an electric control box 3, a rotating speed sensor 4, an incoming flow total temperature Tt2 sensor 5, an exhaust temperature Tt6 sensor 6, an electric ignition 7, a powder starter 8, an igniter 9, an engine 10 and an upper computer 11;
wherein the rotation speed sensor 4, the Tt2 sensor 5 and the Tt6 sensor 6 are respectively used for measuring the physical rotation speed N, the inflow total temperature Tt1 and the exhaust temperature Tt6 of the engine 10;
the electrical control box 3 comprises an F/V conversion module and a signal amplification and conditioning module, wherein the F/V conversion module is used for converting frequency signals output by the rotating speed sensor 4 into direct-current voltage signals, and the signal amplification and conditioning module is used for converting millivolt signals output by the Tt2 sensor 5 and the Tt6 sensor 6 into direct-current voltage signals;
the rapid prototyping machine 1 is used for acquiring signals of three sensors converted by the electrical control box 3, converting the acquired signals into actual physical quantity and receiving an engine starting instruction sent by the upper computer 11 through an Ethernet port;
the rapid prototype 1 is also used for calculating an engine control rule by using the obtained physical engine speed N, the obtained total inflow temperature Tt1, the obtained exhaust temperature Tt6 and an engine starting instruction sent by the upper computer 11 to obtain the engine oil supply flow and the control time sequence of the electric ignition 7, the gunpowder starter 8 and the igniter 9;
the rapid prototype 1 is further configured to convert the calculated engine oil supply flow qmf into the operating speed of the electric pump 2, and send an operating speed control instruction of the electric pump to the electric pump 2.
The rapid prototype 1 is also used for outputting switching value control signals of three initiating explosive devices of the electric ignition 7, the gunpowder starter 8 and the igniter 9 to the electric control box 3 through the switching value output board card according to the calculated control time sequence of the electric ignition 7, the gunpowder starter 8 and the igniter 9, and driving a relay in the electric control box 3 to control the three initiating explosive devices to work;
the electric pump 2 is used for controlling the motor to rotate by utilizing an internal rotating speed closed-loop controller to inject required fuel into the engine 10 after receiving a rotating speed control instruction, so that the engine 10 is controlled to work.
Preferably, the rapid prototyping machine 1 is specifically configured to obtain the following open-loop law as an engine oil supply law: calculating an engine folding rotation speed Nc according to the obtained physical rotation speed N of the engine and the total inflow temperature Tt 1:
the engine oil supply flow qmf is calculated according to the engine folded rotation speed Nc as follows:
the engine ignition sequence, i.e. the ignition sequence of the electric ignition 7, the powder starter 8, the igniter 9 is designed as follows: when an engine factory is in test run, an electric ignition 7 ignition instruction is sent out when a starting instruction sent by an upper computer 11 is received, the duration time is 10 minutes, and when the engine is in normal work, an igniter 9 and a gunpowder starter 8 ignition instruction are sent out when the starting instruction sent by the upper computer 11 is received, and the duration time is 500 milliseconds; meanwhile, the rapid prototype 1 protects the engine 10 by using the collected engine exhaust temperature Tt6, and issues a stop/fuel cut command when the engine exhaust temperature Tt6 is greater than 600 ℃.
Preferably, the rapid prototyping machine 1 is used for acquiring signals of three sensors converted from the electrical control box 3 by using the AD board.
Preferably, the rapid prototyping machine 1 is specifically configured to send the electric pump working speed control instruction to the electric pump 2 by using an RS422 communication board card according to a communication protocol.
The invention also provides a turbofan engine control method realized by the turbofan engine control system, which comprises the following steps:
s1, measuring the physical rotating speed N, the total inflow temperature Tt1 and the exhaust temperature Tt6 of the engine 10 by using the rotating speed sensor 4, the Tt2 sensor 5 and the Tt6 sensor 6 respectively, converting a frequency signal output by the rotating speed sensor 4 into a direct current voltage signal by using an F/V conversion module in the electric control box 3, and converting millivolt signals output by the Tt2 sensor 5 and the Tt6 sensor 6 into direct current voltage signals by using a signal amplification conditioning module in the electric control box 3;
s2, the rapid prototyping machine 1 collects signals of the three sensors converted by the electrical control box 3, converts the collected signals into actual physical quantity, and receives an engine starting instruction sent by the upper computer 11 through an Ethernet port;
s3, the rapid prototyping machine 1 utilizes the obtained physical engine speed N, the total inflow temperature Tt1, the exhaust temperature Tt6 and the engine starting instruction sent by the upper computer 11 to calculate the engine control rule to obtain the engine oil supply flow and the control time sequence of the electric ignition 7, the powder starter 8 and the igniter 9;
s4, converting the calculated oil supply flow into the working rotating speed of the electric pump 2 by the rapid prototyping machine 1, and sending a control instruction of the working rotating speed of the electric pump to the electric pump 2; the rapid prototype 1 also outputs switching value control signals of three initiating explosive devices of the electric ignition 7, the gunpowder starter 8 and the igniter 9 to the electric control box 3 through the switching value output board card according to the calculated control time sequence of the electric ignition 7, the gunpowder starter 8 and the igniter 9, and drives a relay in the electric control box 3 to control the three initiating explosive devices to work;
and S5, after the electric pump 2 receives the rotating speed control instruction, controlling the motor to rotate by using an internal rotating speed closed-loop controller to inject the required fuel into the engine 10, thereby controlling the engine 10 to work.
Preferably, in step S3, the engine oil supply law is selected from the following open loop laws: the rapid prototype 1 calculates an engine folding rotation speed Nc according to the obtained engine physical rotation speed N and the inflow total temperature Tt 1:
the engine oil supply flow qmf is calculated according to the engine folded rotation speed Nc as follows:
the engine ignition sequence, i.e. the ignition sequence of the electric ignition 7, the powder starter 8, the igniter 9 is designed as follows: when an engine factory is in test run, an electric ignition 7 ignition instruction is sent out when a starting instruction sent by an upper computer 11 is received, the duration time is 10 minutes, and when the engine is in normal work, an igniter 9 and a gunpowder starter 8 ignition instruction are sent out when the starting instruction sent by the upper computer 11 is received, and the duration time is 500 milliseconds; meanwhile, the rapid prototype 1 protects the engine 10 by using the collected engine exhaust temperature Tt6, and issues a stop/fuel cut command when the engine exhaust temperature Tt6 is greater than 600 ℃.
Preferably, in step S2, the rapid prototyping machine 1 acquires the signals of the three sensors converted from the electrical control box 3 by using the AD board.
Preferably, in step S4, the rapid prototyping machine 1 sends the electric pump operating speed control command to the electric pump 2 by using the RS422 communication board according to the communication protocol.
(III) advantageous effects
The invention establishes a turbofan engine control system by using a universal rapid prototype, and realizes various control functions of engine oil supply, ignition, protection and the like. Meanwhile, the system has the advantages of good universality, strong expansion capability, short development period and low cost, is suitable for rapid development of the engine control system in the early stage of development, and can greatly reduce the development cost and shorten the development period.
Drawings
FIG. 1 is a schematic diagram of a turbofan engine control system of the present invention based on a rapid prototyping machine;
fig. 2 is a flow chart of a control method of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Fig. 1 is a schematic diagram of a turbofan engine control system based on a rapid prototyping machine, and the system comprises the rapid prototyping machine 1, an electric pump 2, an electric control box 3, a rotation speed sensor 4, an inflow total temperature Tt2 sensor 5, an exhaust temperature Tt6 sensor 6, an electric ignition 7, a powder starter 8, an igniter 9, an engine 10 and an upper computer 11.
Wherein, the rotation speed sensor 4, the Tt2 sensor 5 and the Tt6 sensor 6 are respectively used for measuring the physical rotation speed N, the inflow total temperature Tt1 and the exhaust temperature Tt6 of the engine 10;
the electrical control box 3 comprises an F/V conversion module and a signal amplification and conditioning module, wherein the F/V conversion module is used for converting a frequency signal output by the rotating speed sensor 4 into a direct current voltage signal, and the signal amplification and conditioning module is used for converting millivolt signals output by the Tt2 sensor 5 and the Tt6 sensor 6 into a direct current voltage signal;
the rapid prototyping machine 1 is used for acquiring signals of three sensors converted from the electrical control box 3 by using the AD board card, converting the acquired signals into actual physical quantity, and receiving an engine starting instruction sent by the upper computer 11 through an Ethernet port;
the rapid prototype 1 is also used for calculating an engine control rule by using the obtained physical engine speed N, the obtained total inflow temperature Tt1, the obtained exhaust temperature Tt6 and an engine starting instruction sent by the upper computer 11 to obtain the engine oil supply flow and the control time sequence of the electric ignition 7, the powder starter 8 and the igniter 9;
the rapid prototyping machine 1 is specifically configured to obtain the following open-loop law as an engine oil supply law: calculating an engine folding rotation speed Nc according to the obtained physical rotation speed N of the engine and the total inflow temperature Tt 1:
the engine oil supply flow qmf is calculated according to the engine folded rotation speed Nc as follows:
the engine ignition sequence, i.e. the ignition sequence of the electric ignition 7, the powder starter 8, the igniter 9 is designed as follows: when an engine factory is in test run, an electric ignition 7 ignition instruction is sent out when a starting instruction sent by an upper computer 11 is received, the duration time is 10 minutes, and when the engine is in normal work, an igniter 9 and a gunpowder starter 8 ignition instruction are sent out when the starting instruction sent by the upper computer 11 is received, and the duration time is 500 milliseconds; meanwhile, the rapid prototype 1 protects the engine 10 by using the collected engine exhaust temperature Tt6, and issues a stop/fuel cut command when the engine exhaust temperature Tt6 is greater than 600 ℃.
The rapid prototype 1 is further configured to convert the calculated engine oil supply flow qmf into the operating speed of the electric pump 2, and send an operating speed control instruction of the electric pump to the electric pump 2 by using an RS422 communication board according to a communication protocol.
The rapid prototype 1 is also used for outputting switching value control signals of three initiating explosive devices of the electric ignition 7, the gunpowder starter 8 and the igniter 9 to the electric control box 3 through the switching value output board card according to the calculated control time sequence of the electric ignition 7, the gunpowder starter 8 and the igniter 9, and driving a relay in the electric control box 3 to control the three initiating explosive devices to work;
the electric pump 2 is used for controlling the motor to rotate by utilizing an internal rotating speed closed-loop controller to inject required fuel into the engine 10 after receiving a rotating speed control instruction, so that the engine 10 is controlled to work.
The invention also provides a turbofan engine control method realized by the turbofan engine control system, which comprises the following steps:
s1, measuring the physical rotating speed N, the total inflow temperature Tt1 and the exhaust temperature Tt6 of the engine 10 by using the rotating speed sensor 4, the Tt2 sensor 5 and the Tt6 sensor 6 respectively, converting a frequency signal output by the rotating speed sensor 4 into a direct current voltage signal by using an F/V conversion module in the electric control box 3, and converting millivolt signals output by the Tt2 sensor 5 and the Tt6 sensor 6 into direct current voltage signals by using a signal amplification conditioning module in the electric control box 3;
s2, the rapid prototyping machine 1 acquires signals of the three sensors converted from the electrical control box 3 by using the AD board card, converts the acquired signals into actual physical quantity, and receives an engine starting instruction sent by the upper computer 11 through the Ethernet port;
s3, the rapid prototyping machine 1 utilizes the obtained physical engine speed N, the total inflow temperature Tt1, the exhaust temperature Tt6 and the engine starting instruction sent by the upper computer 11 to calculate the engine control rule to obtain the engine oil supply flow and the control time sequence of the electric ignition 7, the powder starter 8 and the igniter 9;
the oil supply rule of the engine is selected from the following open-loop rules: the rapid prototype 1 calculates an engine folding rotation speed Nc according to the obtained engine physical rotation speed N and the inflow total temperature Tt 1:
the engine oil supply flow qmf is calculated according to the engine folded rotation speed Nc as follows:
the engine ignition sequence, i.e. the ignition sequence of the electric ignition 7, the powder starter 8, the igniter 9 is designed as follows: when an engine factory is in test run, an electric ignition 7 ignition instruction is sent out when a starting instruction sent by an upper computer 11 is received, the duration time is 10 minutes, and when the engine is in normal work, an igniter 9 and a gunpowder starter 8 ignition instruction are sent out when the starting instruction sent by the upper computer 11 is received, and the duration time is 500 milliseconds; meanwhile, the rapid prototype 1 protects the engine 10 by using the collected engine exhaust temperature Tt6, and issues a stop/fuel cut command when the engine exhaust temperature Tt6 is greater than 600 ℃.
And S4, converting the calculated oil supply flow into the working rotating speed of the electric pump 2 by the rapid prototyping machine 1, and sending a working rotating speed control instruction of the electric pump to the electric pump 2 by utilizing an RS422 communication board card according to a communication protocol.
The rapid prototyping machine 1 also outputs the switching value control signals of the three initiating explosive devices of the electric ignition 7, the gunpowder starter 8 and the igniter 9 to the electric control box 3 through the switching value output board card according to the control time sequence of the electric ignition 7, the gunpowder starter 8 and the igniter 9 obtained by calculation, and drives the relay in the electric control box 3 to control the three initiating explosive devices to work.
And S5, after the electric pump 2 receives the rotating speed control instruction, controlling the motor to rotate by using an internal rotating speed closed-loop controller to inject the required fuel into the engine 10, thereby controlling the engine 10 to work.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A turbofan engine control system based on a rapid prototyping machine is characterized by comprising the rapid prototyping machine (1), an electric pump (2), an electric control box (3), a rotating speed sensor (4), a Tt2 sensor (5), a Tt6 sensor (6), an electric ignition (7), a gunpowder starter (8), an igniter (9), an engine (10) and an upper computer (11);
wherein the rotation speed sensor (4), the Tt2 sensor (5) and the Tt6 sensor (6) are respectively used for measuring the physical rotation speed N, the inflow total temperature Tt1 and the exhaust temperature Tt6 of the engine (10);
the electrical control box (3) comprises an F/V conversion module and a signal amplification and conditioning module, wherein the F/V conversion module is used for converting a frequency signal output by the rotating speed sensor (4) into a direct-current voltage signal, and the signal amplification and conditioning module is used for converting millivolt signals output by the Tt2 sensor (5) and the Tt6 sensor (6) into a direct-current voltage signal;
the rapid prototype (1) is used for acquiring signals of three sensors converted by the electrical control box (3), converting the acquired signals into actual physical quantity and receiving an engine starting instruction sent by the upper computer (11) through an Ethernet port;
the rapid prototype (1) is also used for calculating an engine control rule by using the obtained engine physical rotating speed N, the obtained inflow total temperature Tt1, the obtained exhaust temperature Tt6 and an engine starting instruction sent by the upper computer (11) to obtain the engine oil supply flow and the control time sequence of the electric ignition (7), the gunpowder starter (8) and the igniter (9);
the rapid prototype (1) is also used for converting the calculated engine oil supply flow qmf into the working rotating speed of the electric pump (2) and sending a control instruction of the working rotating speed of the electric pump to the electric pump (2);
the rapid prototype (1) is also used for outputting switching value control signals of three initiating explosive devices of the electric ignition (7), the gunpowder starter (8) and the igniter (9) to the electric control box (3) through the switching value output board card according to the control time sequence of the electric ignition (7), the gunpowder starter (8) and the igniter (9) obtained through calculation, and driving a relay in the electric control box (3) to control the three initiating explosive devices to work;
and the electric pump (2) is used for controlling the motor to rotate by utilizing an internal rotating speed closed-loop controller to spray required fuel into the engine (10) after receiving a working rotating speed control instruction, so that the engine (10) is controlled to work.
2. The system according to claim 1, characterized in that the rapid prototyping machine (1) is specifically adapted to derive as engine fueling law the following open loop law: calculating an engine folding rotation speed Nc according to the obtained physical rotation speed N of the engine and the total inflow temperature Tt 1:
the engine oil supply flow qmf is calculated according to the engine folded rotation speed Nc as follows:
the ignition sequence of the engine, namely the ignition sequence of the electric ignition (7), the powder starter (8) and the igniter (9) is designed as follows: when an engine factory is in test run, an electric ignition (7) ignition instruction is sent out when an engine starting instruction sent by an upper computer (11) is received, the duration time is 10 minutes, and when the engine is in formal work, an igniter (9) and a gunpowder starter (8) ignition instruction are sent out when the engine starting instruction sent by the upper computer (11) is received, the duration time is 500 milliseconds; meanwhile, the rapid prototype (1) protects the engine (10) by using the collected engine exhaust temperature Tt6, and gives a stop and oil stop instruction when the engine exhaust temperature Tt6 is higher than 600 ℃.
3. The system according to claim 1, characterized in that the rapid prototyping machine (1) is adapted to acquire the signals of the three sensors converted from the electrical control box (3) by means of the AD card.
4. The system according to claim 1, characterized in that the rapid prototyping machine (1) is particularly adapted to send the electric pump operating speed control command to the electric pump (2) according to a communication protocol using an RS422 communication board.
5. A turbofan engine control method implemented by the turbofan engine control system of any one of claims 1 to 4, comprising the steps of:
s1, measuring the physical rotating speed N, the total inflow temperature Tt1 and the exhaust temperature Tt6 of the engine (10) by using a rotating speed sensor (4), a Tt2 sensor (5) and a Tt6 sensor (6), converting a frequency signal output by the rotating speed sensor (4) into a direct current voltage signal by using an F/V conversion module in an electric control box (3), and converting millivolt signals output by the Tt2 sensor (5) and the Tt6 sensor (6) into a direct current voltage signal by using a signal amplification conditioning module in the electric control box (3);
s2, the rapid prototyping machine (1) collects signals of three sensors converted by the electrical control box (3), converts the collected signals into actual physical quantity, and receives an engine starting instruction sent by the upper computer (11) through an Ethernet port;
s3, the rapid prototyping machine (1) utilizes the obtained physical rotating speed N of the engine, the total inflow temperature Tt1, the exhaust temperature Tt6 and an engine starting instruction sent by the upper computer (11) to calculate the control rule of the engine to obtain the oil supply flow of the engine and the control time sequence of electric ignition (7), a powder starter (8) and an igniter (9);
s4, converting the calculated oil supply flow into the working rotating speed of the electric pump (2) by the rapid prototyping machine (1), and sending a control instruction of the working rotating speed of the electric pump to the electric pump (2); the rapid prototype (1) also outputs switching value control signals of three initiating explosive devices of the electric ignition (7), the gunpowder starter (8) and the igniter (9) to the electric control box (3) through the switching value output board card according to the calculated control time sequence of the electric ignition (7), the gunpowder starter (8) and the igniter (9), and drives a relay in the electric control box (3) to control the three initiating explosive devices to work;
and S5, after the electric pump (2) receives the working rotating speed control instruction, the internal rotating speed closed-loop controller is used for controlling the motor to rotate to spray the required fuel into the engine (10), so that the engine (10) is controlled to work.
6. The method of claim 5, wherein in step S3, the engine fueling strategy is selected from the following open-loop strategies: the rapid prototype (1) calculates the engine folding speed Nc according to the obtained physical engine speed N and the inflow total temperature Tt 1:
the engine oil supply flow qmf is calculated according to the engine folded rotation speed Nc as follows:
the ignition sequence of the engine, namely the ignition sequence of the electric ignition (7), the powder starter (8) and the igniter (9) is designed as follows: when an engine factory is in test run, an electric ignition (7) ignition instruction is sent out when an engine starting instruction sent by an upper computer (11) is received, the duration time is 10 minutes, and when the engine is in formal work, an igniter (9) and a gunpowder starter (8) ignition instruction are sent out when the engine starting instruction sent by the upper computer (11) is received, the duration time is 500 milliseconds; meanwhile, the rapid prototype (1) protects the engine (10) by using the collected engine exhaust temperature Tt6, and gives a stop and oil stop instruction when the engine exhaust temperature Tt6 is higher than 600 ℃.
7. The method according to claim 5, wherein in step S2, the rapid prototyping machine (1) acquires the signals of the three sensors converted from the electrical control box (3) by using the AD board.
8. The method of claim 5, wherein the rapid prototyping machine (1) sends the electric pump (2) an operating speed control command for the electric pump using the RS422 communication board according to the communication protocol at step S4.
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| CN103488098A (en) * | 2013-09-24 | 2014-01-01 | 南京航空航天大学 | Rapid prototyping simulation method of aircraft engine control system |
| CN104749967A (en) * | 2015-04-08 | 2015-07-01 | 南京航空航天大学 | Quick prototype architecture of aero-engine control unit |
| US10095194B2 (en) * | 2016-02-19 | 2018-10-09 | Dspace Digital Signal Processing And Control Engineering Gmbh | Method for configuring a test device set up for testing an electronic control unit |
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