CN112859642B - Semi-physical simulation method and device for engine controller - Google Patents
Semi-physical simulation method and device for engine controller Download PDFInfo
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- CN112859642B CN112859642B CN202110072277.5A CN202110072277A CN112859642B CN 112859642 B CN112859642 B CN 112859642B CN 202110072277 A CN202110072277 A CN 202110072277A CN 112859642 B CN112859642 B CN 112859642B
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Abstract
The invention provides a semi-physical simulation method and a semi-physical simulation device for an engine controller, wherein the method comprises the following steps: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation main control module executes the following steps: receiving an ignition signal, and sending the ignition signal to the engine controller, so that the engine controller executes a preset control instruction; receiving a variable thrust sensing signal generated when a thrust adjusting module executes the control instruction; and resolving the variable thrust sensing signal to obtain a simulation signal. By implementing the invention, the simulation of the engine controller of the rocket with adjustable thrust can be completed, the comprehensive performance of the engine controller can be tested before a real ignition test run is realized by simulating the engine controller of the rocket with adjustable thrust, basic test run errors and algorithm errors are eliminated in the simulation, the test run times are reduced, and the test run cost is reduced.
Description
Technical Field
The invention relates to the field of liquid rocket engine control, in particular to a semi-physical simulation method and device of an engine controller.
Background
In recent years, with the development of commercial aerospace, rocket recovery has become an important tool for low-cost entry and exit into space, such as liquid rocket engines. However, the thrust of the existing liquid rocket engine cannot be adjusted, so that the liquid rocket cannot be recycled, and the liquid rocket engine with adjustable thrust needs to introduce a set of high-reliability electronic control system, namely an engine controller. Before the engine controller is embedded into the rocket engine, a systematic, comprehensive and reliable simulation test needs to be carried out to ensure that various normal working conditions and abnormal working conditions of a test run test and a flight test can be automatically processed after the rocket engine is connected.
In the related art, an engine controller and a related control algorithm which meet the thrust regulation requirement can be obtained only by carrying out multiple real test runs, but the real test runs involve links such as low-temperature liquid preparation, transportation, storage and filling, and the cost is huge, so that a simulation method of the engine controller is urgently needed to reduce the real test runs, and the test runs cost is reduced.
Disclosure of Invention
In view of this, the embodiment of the invention provides a semi-physical simulation method and a semi-physical simulation device for an engine controller, so as to solve the defect of high test-run cost caused by the absence of a simulation method for testing a liquid rocket engine controller with adjustable thrust in the prior art.
According to a first aspect, an embodiment of the present invention provides a semi-physical simulation method for an engine controller, including: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation main control module executes the following steps: receiving an ignition signal, and sending the ignition signal to the engine controller, so that the engine controller executes a preset control instruction; receiving a variable thrust sensing signal generated when a thrust adjusting module executes the control instruction; and resolving the variable thrust sensing signal to obtain a simulation signal.
Optionally, the variable thrust force sensing signal comprises a valve opening degree sensing signal for controlling the flow of the combustion substances; resolving the variable thrust sensing signal to obtain a simulation signal, wherein the resolving comprises the following steps: determining the current temperature of the engine according to the valve opening sensing signal; and determining a thrust simulation signal generated by the engine according to the current temperature of the engine.
Optionally, the combustion material comprises a combustible and oxygen; the determining the current temperature of the engine according to the valve opening sensing signal comprises:
wherein T is the engine temperature; etaggIndicating the combustion efficiency, eta, of the gas generatorgg＝(1+δg)rv，rvRepresenting the ratio of the oxygen flow to the combustible flow, deltagAs a correction factor for the combustion efficiency of the gas generator,
wherein, K1Opening of oxygen valve, K2Opening degree of combustible valve, deltaKIs a correction factor for the ratio of oxygen to combustible flow, t is the current time, τ is the delay constant, and (t- τ) is the time delay; g is given by a pre-stored database.
Optionally, the method further comprises: processing the simulation signal according to a characteristic equation of the sensor; and sending the processed simulation signal to an engine controller.
Optionally, the control instruction includes variable thrust control parameters and simulated environment temperature under a plurality of different working conditions.
Optionally, the method further comprises: receiving an abnormal working condition test instruction; according to the abnormal working condition test instruction, carrying out simulation test on the thrust adjusting control process of the engine controller; and displaying the corresponding test result.
According to a second aspect, an embodiment of the present invention provides a semi-physical simulation apparatus for an engine controller, including: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation main control module comprises: the ignition signal receiving module is used for receiving an ignition signal and sending the ignition signal to the engine controller, so that the engine controller executes a preset control instruction; the sensing signal receiving module is used for receiving a variable thrust sensing signal generated when the thrust adjusting module executes the control instruction; and the simulation signal determining module is used for resolving the variable thrust sensing signal to obtain a simulation signal.
Optionally, the variable thrust force sensing signal comprises a valve opening degree sensing signal for controlling the flow of the combustion substances; an emulated signal determination module comprising: the temperature determining module is used for determining the current temperature of the engine according to the valve opening sensing signal; and the thrust simulation signal determination module is used for determining a thrust simulation signal generated by the engine according to the current temperature of the engine.
According to a third aspect, the present invention provides an electronic device, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method for semi-physical simulation of an engine controller according to the first aspect or any of the embodiments of the first aspect when executing the program.
According to a fourteenth aspect, the present invention provides a storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the engine controller semi-physical simulation method according to the first aspect or any of the embodiments of the first aspect.
The technical scheme of the invention has the following advantages:
according to the semi-physical simulation method for the engine controller, provided by the embodiment of the invention, the simulation of the engine controller of the rocket with adjustable thrust is completed by resolving the variable thrust sensing signal through the simulation main control module, adjusting and controlling the thrust of the engine controller and executing the control instruction of the engine controller through the thrust adjusting module, the comprehensive performance of the engine controller can be tested before a real ignition test run is realized through the simulation of the engine controller of the rocket with adjustable thrust, basic test run errors and algorithm errors are eliminated in the simulation, the test run times are reduced, and the test run cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flowchart of one specific example of a method for semi-physical simulation of an engine controller in an embodiment of the present invention;
FIG. 2 is a diagram illustrating an exemplary method for semi-physical simulation of an engine controller according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of a particular example of a semi-physical simulation apparatus for an engine controller in accordance with an embodiment of the present invention;
fig. 4 is a schematic block diagram of a specific example of an electronic device in the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment provides a semi-physical simulation method of an engine controller, which comprises the following steps: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation master control module executes, the simulation master control module comprises a simulation master control system upper computer and a real-time lower computer, and the upper computer is configured with simulation tasks and provides a start-stop control function for a user; the lower computer collects real-time variable thrust sensing signals of all the pieces of equipment to be tested and carries out real-time calculation, and the thrust adjusting module comprises an engine flow control module and a flow adjusting mechanism, and as shown in figure 1, the method comprises the following steps:
and S101, receiving the ignition signal and sending the ignition signal to the engine controller, so that the engine controller executes a preset control instruction.
For example, the ignition signal is a start control signal sent by a user, the ignition signal is sent to the engine controller in a wired/wireless communication mode, the start control signal enables the engine controller to start and execute a preset control instruction, the whole process from ignition, variable thrust adjustment to shutdown of the liquid rocket engine is achieved, and the control instruction can control the engine to generate corresponding thrust in different flight stages.
And S102, receiving a variable thrust sensing signal generated when the thrust adjusting module executes the control command.
Illustratively, the thrust adjusting module comprises an engine flow control module and a flow adjusting mechanism, wherein the engine flow control module receives a variable thrust adjusting control instruction of an engine controller, calculates flow data of the combustion substances, and sends the flow data to the flow adjusting mechanism, and the flow adjusting mechanism converts the received flow data into a specific valve opening size to realize control of the flow of the combustion substances. The variable thrust sensing signal may include a valve opening sensor.
And S103, resolving the variable thrust sensing signal to obtain a simulation signal.
Illustratively, after receiving the valve opening size of the valve opening sensor, the simulation main control module calculates the mathematical model of the liquid rocket engine in real time according to the valve opening size to obtain a simulation signal, where the simulation signal may be a temperature simulation signal, a thrust simulation signal, or the like.
According to the semi-physical simulation method for the engine controller, provided by the embodiment of the invention, the simulation of the engine controller of the rocket with adjustable thrust is completed by resolving the variable thrust sensing signal through the simulation main control module, adjusting and controlling the thrust of the engine controller and executing the control instruction of the engine controller through the thrust adjusting module, the comprehensive performance of the engine controller can be tested before a real ignition test run is realized through the simulation of the engine controller of the rocket with adjustable thrust, basic test run errors and algorithm errors are eliminated in the simulation, the test run times are reduced, and the test run cost is reduced.
As an optional implementation manner of this embodiment, the variable thrust force sensing signal includes a valve opening degree sensing signal for controlling the flow rate of the combustion substance; resolving the variable thrust sensing signal to obtain a simulation signal, wherein the resolving comprises the following steps:
firstly, the current temperature of the engine is determined according to the valve opening sensing signal.
Illustratively, the combustion materials include combustibles and oxygen; determining the current temperature of the engine according to the valve opening sensing signal, comprising:
wherein T is the engine temperature; etaggIndicating the combustion efficiency, eta, of the gas generatorgg＝(1+δg)rv，rvRepresents the oxygen flow rate andratio of combustible flow, deltagAs a correction factor for the combustion efficiency of the gas generator,
wherein K1 is the opening of oxygen valve, K2 is the opening of combustible valve, deltaKIs a correction factor of the ratio of the oxygen to the combustible flow, t is the current time, tau is a delay constant, and the value is between 0.01 and 0.03, wherein (t-tau) is the time delay; g describes the relationship between the theoretical combustion temperature and the mixture ratio, is given by a pre-stored database, for example, in the form of a data interpolation Table Lookup _ Table1, and is queried according to known K1 and K2 to obtain g, which is Lookup _ Table1 (K1)1，K2，rv)。
Secondly, determining a thrust simulation signal generated by the engine according to the current temperature of the engine.
For example, according to the current temperature of the engine, the thrust simulation signal generated by the engine can be determined by converting the temperature T and the pressure P to obtain the final thrust output F of the engine. The three-part relationship is given by the form of a data interpolation Table Lookup _ Table2, F ═ Lookup _ Table2(T, P).
As an optional implementation manner of this embodiment, the method for semi-physical simulation of an engine controller further includes:
firstly, processing a simulation signal according to a characteristic equation of a sensor;
the simulation signals may include temperature simulation signals, pressure simulation signals, and flow simulation signals, which are associated with different sensor characteristics, including temperature sensor characteristics, pressure sensor characteristics, and flow sensor characteristics. Therefore, the characteristic equation for the sensor is introduced as follows:
omega-frequency value
Tau-time constant
Wherein s is the simulation signal, and G(s) is the processed simulation signal.
For different types of simulation signals, corresponding sensor characteristic equation parameters are different, and the following table1 shows:
TABLE1
Secondly, the processed simulation signal is sent to an engine controller.
For example, the engine controller determines the control signal that needs to be executed currently according to the processed simulation signals, for example, when the flow simulation signal exceeds a preset flow, the engine controller sends a valve control signal, and repeatedly adjusts the opening and closing degree of the valve to control the flow.
According to the semi-physical simulation method of the engine controller, provided by the embodiment of the invention, the working state of the sensor in the real test-in process is restored by introducing the characteristic equation of the sensor into the simulation data obtained by calculation, so that the signals received by the engine controller are closer to the actual data, and the authenticity of simulation is improved.
As an optional implementation manner of this embodiment, the control command includes a variable thrust control parameter and a simulated ambient temperature under a plurality of different working conditions.
Illustratively, variable thrust control parameters and simulated environment temperature characterizations under a plurality of different working conditions are combined according to the deviation of the variable thrust control parameters and the deviation of the simulated environment temperature, wherein the variable thrust control parameters are divided into 5 gears, the simulated environment temperature is divided into 3 gears, and traversal combination is performed. The results are shown in Table2, for example:
TABLE2
| Pulling and biasing combination | Simulated environmental low temperature conditions | Simulated environment standard temperature state | High temperature state of simulation environment |
| The control parameter is higher than 20% | 1 time of | 1 time of | 1 time of |
| The control parameter is higher than 10% | 1 time of | 1 time of | 1 time of |
| Control parameter unbiased | 1 time of | 1 time of | 1 time of |
| The control parameter is lower than 10% | 1 time of | 1 time of | 1 time of |
| The control parameter is lower than 20% | 1 time of | 1 time of | 1 time of |
And carrying out one test on each combination condition to obtain simulation results under various working conditions.
According to the semi-physical simulation method of the engine controller provided by the embodiment of the invention, simulation effects under different working conditions can be obtained by simulating under various working conditions, so that defects in the simulation process are adjusted, and the simulation process and the simulation algorithm are more adaptive when being applied to real test run.
As an optional implementation manner of this embodiment, the method for semi-physical simulation of an engine controller further includes: receiving an abnormal working condition test instruction; according to the abnormal working condition test instruction, carrying out simulation test on the thrust adjusting control process of the engine controller; and displaying the corresponding test result.
For example, when performing simulation, the total flow of the simulation may be:
the first step is as follows: powering on the system, and starting a program for self-checking;
the second step is that: setting initial parameters such as temperature, chamber pressure and flow rate, wherein the set initial parameters can be: the temperature is 900K; room pressure 9.1 MPa; flow rate and opening degree: methane 50 degrees and oxygen 70 degrees;
the third step: testing the motion of an actuating mechanism; the method comprises the following steps: the engine controller sends a test instruction and starts a flow regulating mechanism test automation process; the flow control module generates three-gear control instructions of 120 degrees, 60 degrees and 0 degree; the flow regulating mechanism regulates the valve to 120 degrees, 60 degrees and 0 degree in sequence according to the instruction;
the fourth step: sending an ignition signal;
the fifth step: the engine controller is started in advance, namely the temperature and the room pressure of the engine are lifted to a combustion state from a normal temperature state, and a basic environment is provided for generating thrust for high-speed combustion;
and a sixth step: the engine controller enters closed-loop control;
the seventh step: and (5) stopping the machine.
Eighth step: and (5) powering off.
In order to avoid other accidents caused by software function abnormality in the real test run process, all devices in the whole liquid rocket system with adjustable thrust force need to be subjected to abnormal working condition detection, so that test cases need to be set for each abnormal working condition during simulation, and the representation of the test cases indicates under which abnormal working condition to prompt.
The whole thrust-adjustable liquid rocket simulation system comprises a simulation main control module, an engine controller and a thrust adjusting module, and also comprises a plurality of temperature sensors, a liquid level sensor, a differential pressure sensor, a flow sensor, a first sky measurement unit and a power supply which are shown in figure 2. In an actual liquid rocket system with adjustable thrust, a temperature sensor is used for sensing the temperature of each part, a liquid level sensor is used for sensing liquid level data of a combustible substance storage mechanism, a differential pressure sensor is used for sensing differential pressures of different parts, and a sky survey I is used for acquiring all real-time data in the thrust adjustable process of an engine and forwarding the real-time data to the outside. The abnormal working condition is expected to mainly appear on each sensor or each circuit connection, and communication interruption abnormity and execution abnormity may occur, so that emergency shutdown is caused. In the simulation, the set test cases are shown in table 3:
TABLE 3
If the serial number 19 in the table is used, before simulation, the test instruction is to connect the sky test I to the liquid rocket simulation system with adjustable thrust, and during the simulation test process of the thrust adjustment control process of the engine controller, a corresponding result is displayed, for example, an abnormal condition is displayed on an interface, and a closed-loop prompt cannot be entered, so that relevant personnel are prompted to adjust, and the condition that a test vehicle breaks down due to the fact that the sky test I is not connected can be eliminated according to a preset abnormal working condition test case when an ignition test vehicle is actually carried out. The abnormal working condition test improves the scheduling correctness of all branches of the test run control software, and enhances the coverage of software functions and the running robustness.
The present embodiment provides a semi-physical simulation apparatus for an engine controller, as shown in fig. 3, including: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation main control module comprises:
an ignition signal receiving module 201, configured to receive an ignition signal and send the ignition signal to the engine controller, so that the engine controller executes a preset control instruction; for details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
The sensing signal receiving module 202 is configured to receive a variable thrust sensing signal generated when the thrust adjusting module executes the control instruction; for details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
And the simulation signal determining module 203 is used for calculating the variable thrust sensing signal to obtain a simulation signal. For details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
As an optional implementation manner of this embodiment, the variable thrust sensing signal includes a valve opening sensing signal for controlling the flow of the combustion substance; an emulated signal determination module comprising:
the temperature determining module is used for determining the current temperature of the engine according to the valve opening sensing signal; for details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
And the thrust simulation signal determination module is used for determining a thrust simulation signal generated by the engine according to the current temperature of the engine. For details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
As an alternative embodiment of this embodiment, the combustion material comprises a combustible material and oxygen; the temperature determination module includes: the calculation module is used for determining the temperature according to the following formula;
wherein T is the engine temperature; etaggIndicating the combustion efficiency, eta, of the gas generatorgg＝(1+δg)rv，rvRepresenting the ratio of the oxygen flow to the combustible flow, deltagAs a correction factor for the combustion efficiency of the gas generator,
wherein, K1Opening of oxygen valve, K2Opening degree of combustible valve, deltaKIs a correction factor for the ratio of oxygen to combustible flow, t is the current time, τ is the delay constant, and (t- τ) is the time delay; g is given by a pre-stored database. For details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
As an optional embodiment of the present invention, the simulation signal determining module 203 includes:
the correction module is used for processing the simulation signal according to the characteristic equation of the sensor; for details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
And the simulation signal determination submodule is used for sending the processed simulation signal to the engine controller. For details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
As an optional implementation manner of this embodiment, the control command includes a variable thrust control parameter and a simulated ambient temperature under a plurality of different working conditions. For details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
As an optional implementation manner of this embodiment, the semi-physical simulation apparatus of the engine controller further includes:
the instruction receiving module is used for receiving an abnormal working condition test instruction; for details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
The simulation test module is used for carrying out simulation test on the thrust adjusting control process of the engine controller according to the abnormal working condition test instruction; for details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
And the result display module is used for displaying the corresponding test result. For details, refer to the corresponding steps of the method in the above embodiments, which are not described herein again.
The embodiment of the present application also provides an electronic device, as shown in fig. 4, including a processor 310 and a memory 320, where the processor 310 and the memory 320 may be connected by a bus or in another manner.
Processor 310 may be a Central Processing Unit (CPU). The Processor 310 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or any combination thereof.
The memory 320, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the engine controller semi-physical simulation method in embodiments of the present invention. The processor executes various functional applications and data processing of the processor by executing non-transitory software programs, instructions, and modules stored in the memory.
The memory 320 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 320 may optionally include memory located remotely from the processor, which may be connected to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 320 and, when executed by the processor 310, perform a semi-physical simulation method of an engine controller as in the embodiment of FIG. 1.
The details of the electronic device may be understood with reference to the corresponding related description and effects in the embodiment shown in fig. 1, and are not described herein again.
This embodiment also provides a computer storage medium storing computer-executable instructions that can perform any of the above-described methods of semi-physical simulation of an engine controller of embodiment 1. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A semi-physical simulation method of an engine controller is characterized by comprising the following steps: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation main control module executes the following steps:
receiving an ignition signal, and sending the ignition signal to the engine controller, so that the engine controller executes a preset control instruction;
receiving a variable thrust sensing signal generated when a thrust adjusting module executes the control instruction;
resolving the variable thrust sensing signal to obtain a simulation signal;
the variable thrust sensing signal comprises a valve opening sensing signal for controlling the flow of a combustion substance; resolving the variable thrust sensing signal to obtain a simulation signal, wherein the resolving comprises the following steps:
determining the current temperature of the engine according to the valve opening sensing signal;
determining a thrust simulation signal generated by the engine according to the current temperature of the engine;
wherein the combustion material comprises combustibles and oxygen; the determining the current temperature of the engine according to the valve opening sensing signal comprises:
wherein T is the engine temperature; etaggIndicating the combustion efficiency, eta, of the gas generatorgg＝(1+δg)rv，rvRepresenting the ratio of the oxygen flow to the combustible flow, deltagAs a correction factor for the combustion efficiency of the gas generator,
wherein K1 is the opening of oxygen valve, K2 is the opening of combustible valve, deltaKIs a correction factor for the ratio of oxygen to combustible flow, t is the current time, τ is the delay constant, and (t- τ) is the time delay; g is given by a pre-stored database.
2. The method of claim 1, further comprising:
processing the simulation signal according to a characteristic equation of the sensor;
and sending the processed simulation signal to an engine controller.
3. The method of claim 1, wherein the control command comprises a variable thrust control parameter and a simulated ambient temperature under a plurality of different operating conditions.
4. The method of claim 1, further comprising:
receiving an abnormal working condition test instruction;
according to the abnormal working condition test instruction, carrying out simulation test on the thrust adjusting control process of the engine controller;
and displaying the corresponding test result.
5. A semi-physical simulation device of an engine controller, comprising: the system comprises a simulation main control module, an engine controller and a thrust adjusting module; the simulation main control module comprises:
the ignition signal receiving module is used for receiving an ignition signal and sending the ignition signal to the engine controller, so that the engine controller executes a preset control instruction;
the sensing signal receiving module is used for receiving a variable thrust sensing signal generated when the thrust adjusting module executes the control instruction;
the simulation signal determination module is used for resolving the variable thrust sensing signal to obtain a simulation signal;
the variable thrust sensing signal comprises a valve opening sensing signal for controlling the flow of a combustion substance; an emulated signal determination module comprising:
the temperature determining module is used for determining the current temperature of the engine according to the valve opening sensing signal;
the thrust simulation signal determination module is used for determining a thrust simulation signal generated by the engine according to the current temperature of the engine;
wherein the combustion material comprises combustibles and oxygen; the temperature determination module determines the current temperature of the engine according to the valve opening sensing signal, and comprises:
wherein T is the engine temperature; etaggIndicating the combustion efficiency, eta, of the gas generatorgg＝(1+δg)rv，rvRepresenting the ratio of the oxygen flow to the combustible flow, deltagAs a correction factor for the combustion efficiency of the gas generator,
wherein K1 is the opening of oxygen valve, K2 is the opening of combustible valve, deltaKIs a correction factor for the ratio of oxygen to combustible flow, t is the current time, τ is the delay constant, and (t- τ) is the time delay; g is given by a pre-stored database.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method of semi-physical simulation of an engine controller according to any of claims 1-4 when executing the program.
7. A storage medium having stored thereon computer instructions, characterized in that the instructions, when executed by a processor, implement the steps of a semi-physical simulation method of an engine controller according to any of claims 1-4.
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