Automatic loading method and system for test run of aero-engine

Abstract

The invention provides an automatic loading method and system for an aero-engine test run. The method comprises the following steps: establishing a coding table according to an engine running state and a loading demand; configuring the test run program and the code table to obtain a test run program configuration code; the test run program configuration code is transmitted to the PLC through a data acquisition channel; the PLC performs programming according to the received test run program configuration code, and compiles a corresponding control logic instruction; on the basis of a control logic instruction sent by the PLC, a test run automatic loading program of the engine is started, the loading state of the engine is controlled to be switched according to the loading requirement corresponding to the coding table, and the automatic loading process of engine test run is controlled. According to the automatic loading method, manual loading operation can be completely replaced without being influenced by a preset test run program, the loading amount and the loading time are automatically adjusted according to the actual running state of the engine, and loading can be stopped at any time in the loading process.

Description

Technical Field

[0001] The invention belongs to the technical field of ground test of aircraft engines, and relates to an automatic loading method and system for testing of aircraft engines. Background Art

[0002] In order to evaluate the impact of power split on the characteristics and durability of aircraft engines, the power split load must be adjusted during the specified operation of the engine according to the test procedures. Currently, PLC and WINCC configuration software are usually used to adjust the load of hydraulic pumps and generators.

[0003] In manual loading mode, the operator needs to continuously monitor the engine's operating parameters, such as speed, temperature, pressure, etc., and adjust the loading of the hydraulic pump and generator in a timely manner according to the changes in these parameters and the requirements of the test procedures. This process is highly dependent on the operator's experience, reaction speed and judgment. Due to the intervention of human factors, there is inevitably the risk of loading delay and misoperation, which may not only affect the accuracy of the test, but also cause unnecessary damage to the engine and even endanger the safety of the test. Although pre-setting the loading map can achieve automatic loading, the flexibility of this method is limited. The loading map is based on past experience or theoretical calculations, and it is difficult to fully adapt to the subtle differences and emergencies of each engine during the actual test process. For example, the performance of the engine may change due to manufacturing tolerances, wear, environmental factors, etc., and the fixed loading map cannot be adjusted immediately to adapt to these changes, resulting in deviations between the test results and actual needs.

[0004] Most existing loading control systems lack real-time engine status feedback and intelligent adjustment functions. Even if an abnormality occurs during the operation of the engine, the system cannot automatically adjust the loading strategy to avoid potential risks, but requires operators to detect and intervene manually in time. This lag reduces the efficiency and safety of the test run. During the test run, a large amount of data generated (such as load, engine response, fault alarm, etc.) is crucial for subsequent analysis and optimization. However, existing systems may not be able to efficiently collect, store and analyze this data, resulting in a waste of valuable information resources. The lack of data-driven decision support limits the optimization of the test run process and the improvement of engine performance.

[0005] Therefore, during the manual loading test, the operator needs to constantly observe the engine operating parameters, determine the engine operating status, and then perform manual loading operations, which poses risks such as loading delays and misoperation; the adjustment and timing of the automatic loading amount need to be executed according to the predetermined test program and loading map, and cannot be dynamically changed according to the actual operating status of the engine; for different test programs, different loading maps and PLC control programs need to be set each time; and it is not possible to stop loading at any time during the loading process for automatic unloading. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides an automatic loading method and system for aircraft engine test, which can completely replace manual loading operations and is not affected by a predetermined test program. The loading amount and loading time are automatically adjusted according to the actual operating state of the engine, and the loading can be stopped at any time during the loading process.

[0007] The present invention is achieved through the following technical solutions: An automatic loading method for aircraft engine test run, comprising: Establish a coding table based on the engine operating status and loading requirements; Configure the test program and the coding table to obtain the test program configuration code; Transmit the test program configuration code to the PLC through the data acquisition channel; PLC is programmed according to the received test program configuration code and writes the corresponding control logic instructions; Based on the control logic instructions issued by the PLC, the engine test automatic loading program is started, and the loading state of the engine is controlled to switch according to the loading requirements corresponding to the coding table, thereby realizing the automatic loading process of the engine test.

[0008] Preferably, a coding table is established, specifically: Encode the corresponding loading requirements under each operating state of the engine and establish a coding table; The loading requirements include hydraulic loading flow, electrical loading power and required loading time.

[0009] Preferably, the test run program is configured with the coding table, specifically: The various stages of the test run program are split according to the operating status and load requirements, and arranged according to the preset stage order of the test run program. The various stages of the split test run program are configured according to the codes that correspond one-to-one with the operating status and the same operating status and load in the coding table.

[0010] Preferably, an unloading code is provided in the coding table, and the engine operation state corresponding to the unloading code is the last state before stopping in the test program.

[0011] Preferably, the commissioning program configuration code is transmitted to the PLC through a defined channel, specifically: Based on the data acquisition channel software, set up and add the test program configuration coding channel, add the data acquisition channel signal in the coding channel, and transmit the data acquisition channel signal of the test program configuration coding to the PLC in real time through the UDP protocol; A TRCV_C module is built in the PLC for receiving data acquisition channel signals.

[0012] Preferably, the PLC receives the test program configuration code for programming, specifically: The PLC receives the test program configuration code, and uses ladder diagrams to program the corresponding test program control logic based on the test program configuration code and the corresponding loading requirements as well as the pre-loading preparation and unloading step procedures. The PLC automatically loads the engine based on the programmed test program control logic.

[0013] Preferably, it also includes, According to the loading requirements, different loading buttons are set on the upper computer interface through WINCC configuration software for manual loading operation and actual loading indication; When loading manually, associate the load amount button with the PLC variable and set all status buttons to be mutually inverted so that there is only one loading state; Set the actual load amount indication as a dynamically changing button color. When automatic loading or manual loading switches to the corresponding load amount, the corresponding load amount button will light up to indicate the current load amount.

[0014] Preferably, based on the control logic instruction issued by the PLC, the engine test automatic loading program is started, and the loading state of the engine is controlled to be switched according to the loading demand corresponding to the coding table, so as to realize the automatic loading process of the engine test, specifically: When the automatic loading button is manually operated and the program code for pre-start preparation is received, the engine automatic loading preparation function is triggered, and the hydraulic loading system and electric loading system of the engine will open the valve and supply power to the engine according to the engine operation requirements; The receipt of the test program code is used as the primary trigger condition for controlling the loading amount, and the untriggered unloading function set by the PLC is used as the interlocking condition. At the same time, the loading delay function is set by the PLC to ensure that the engine switches the loading demand in a steady state. When the three conditions of receiving the test program code, the unloading function is not triggered, and the delay timing is completed are met, the loading state is switched according to the loading demand corresponding to the coding table, thereby realizing the automatic loading process of controlling the engine test.

[0015] When the unloading code is received or the emergency unloading button is manually operated, the automatic unloading function set in the PLC is triggered, and the hydraulic loading system and electric loading system of the engine will close the valve switch and cut off the power of the engine according to the operating requirements of the engine.

[0016] Preferably, when the test program needs to be changed, if the engine operating state and the corresponding loading requirements are not newly added, it is only necessary to repeat the steps of configuring the test program and the coding table to re-acquire the test program configuration code; If the engine running state and the corresponding loading requirements are newly added, it is only necessary to continue the coding in the established coding table, and then repeat the test program and the coding table configuration steps. The PLC is programmed according to the received test program configuration code, and the corresponding control logic instruction steps are rewritten, thereby realizing the automatic loading process of controlling the engine test; The PLC is programmed according to the received test program configuration code, and the new code is added to the corresponding load trigger condition.

[0017] An automatic loading system for aircraft engine test, comprising: Coding table building module, configuration module, data transmission module and PLC control module; The coding table building module is used to build a coding table according to the engine operating state and loading requirements; The configuration module is used to configure the test program and the coding table to obtain the test program configuration code; The data transmission module is used to transmit the test program configuration code to the PLC through the data acquisition channel. The PLC control module is used to program the PLC according to the received test program configuration code, and write the corresponding control logic instructions. Based on the control logic instructions issued by the PLC, the engine test automatic loading program is started, and the loading state of the engine is controlled to be switched according to the loading requirements corresponding to the coding table, thereby realizing the automatic loading process of controlling the engine test.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides an automatic loading method and system for aircraft engine test. By establishing a coding table, the engine operating state and the loading requirement are clearly matched, so that the loading operation in the test process is more standardized. The configuration of the test program and the coding table, as well as the transmission to the PLC through the data acquisition channel, realizes the automation of the test process, reduces manual intervention, and improves the test efficiency. The PLC writes the control logic instructions according to the received test program configuration code, ensuring the accuracy of the loading operation. The coding table provides accurate loading requirements, so that the engine can be switched according to the predetermined loading state during the test process, improving the accuracy of the test. The automatic loading method of the present invention replaces manual loading operation, realizes automatic loading during the test run, and improves the efficiency and safety of the engine test run; the adjustment of the loading amount and the loading time are not affected by the predetermined test run program. When the test run time of a certain stage needs to be extended during the engine test run, or the engine does not jump to other stages according to the established order, it can be adjusted automatically without switching to the manual loading state or recompiling the PLC program after stopping, thereby ensuring the progress of the engine test run; when a fault occurs during the test run and unloading is required, the loading can be automatically stopped at any time during the loading process without emergency stopping, thereby ensuring the safety of the engine and the equipment; the preparation work and unloading work before loading can be automatically completed, without manual operation according to the test run stage, thereby reducing the workload of the operator, eliminating human operation errors, and improving the test run quality.

[0019] Furthermore, when the test program is changed, this method only requires updating the code and adding the new code to the corresponding load trigger condition in the PLC program, without recompiling the PLC program, which greatly reduces the workload of PLC programming. Furthermore, PLC, as a control system, has reliable interlocking and protection functions, which can stop loading or take other protective measures in time under abnormal circumstances to ensure the safety of the engine and test equipment.

[0020] Furthermore, the test program configuration code and PLC control logic instructions transmitted through the data acquisition channel can be recorded and stored, providing strong support for the monitoring and evaluation of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The automatic loading flow chart of the engine test run of the present invention; FIG2 is a PLC program ladder diagram in the embodiment; FIG(a) is a hydraulic loading process diagram, FIG(b) is a process diagram of hydraulic automatic loading with a flow rate of 99 L / min, FIG(c) is a process diagram of hydraulic automatic loading with a flow rate of 94 L / min, 64 L / min, and 41 L / min, FIG(d) is a process diagram of generator loading and a process diagram of automatic loading of 60 KVA, and FIG(e) is a process diagram of automatic loading of generators at 90 KVA, 135 KVA, and 180 KVA; Figure 3 It is a schematic diagram of hydraulic loading of the upper computer interface in the embodiment; Figure 4 Schematic diagram of electrical loading of the host computer interface in the embodiment. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] The purpose of the invention is to provide an automatic loading method which can completely replace manual loading operation and is not affected by a predetermined test run program, automatically adjusts the loading amount and loading time according to the actual operating state of the engine, and can stop loading at any time during the loading process.

[0025] The purpose of the present invention is as follows Figure 1 As shown, this is achieved through the following steps: (1) Determine the loading requirements: According to the engine test specifications, sort out the corresponding loading requirements of the engine under various operating conditions, including hydraulic loading flow, electric loading power, and required loading time.

[0026] (2) Establish a coding table: Establish a coding table according to the engine operating status and loading requirements, and encode the corresponding loading requirements under each engine operating status. In order to achieve automatic unloading, the unloading code needs to be set in the coding table. The engine operating status corresponding to the unloading code is the last status before stopping in the test program. The code can be arranged as "0, 1, 2, 3..." and the code must be unique.

[0027] (3) Test run program and coding configuration: The various stages of the test run program are divided according to the requirement of "one operating state corresponds to only one loading requirement" (Formula 1), and then arranged according to the stage sequence of the original test run program, and an unloading stage is added before the engine is stopped. Finally, the re-divided test run program is configured with the codes corresponding to the same operating state and load in the coding table.

[0028] (1) (4) Communication between PLC and digital acquisition: Select an unused channel in the digital acquisition channel software as the encoding channel, then add the digital acquisition channel number of the encoding channel in the [outPlcpos] group of the Option.ini file, and establish a TRCV_C module in the PLC for receiving digital acquisition data. Finally, transmit the code to the PLC in real time through the UDP protocol.

[0029] (5) As shown in Figure 2, PLC program compilation: According to the code and the corresponding load requirements, as well as the steps of pre-loading preparation and unloading, the ladder diagram is used for programming. ① Automatic loading preparation control logic: When the automatic loading button is manually operated and the pre-start preparation code is received, the automatic loading preparation function is triggered. The hydraulic loading system and the electric loading system will open the valve switch and power the equipment according to the equipment operation requirements. ② Automatic loading switching control logic: The received code is used as the primary trigger condition for controlling the load, and the untriggered unloading function is used as the interlocking condition. At the same time, the PLC delay connection module is used to set the loading delay function to ensure that the engine switches the load in a steady state. When the three conditions of "receiving the code", "unloading function not triggered", and "delay timing completed" are met, the loading state is switched according to the load corresponding to the code table. ③ Automatic unloading control logic: When the unloading code is received or the emergency unloading button is manually operated, the automatic unloading function is triggered. The hydraulic loading system and the electric loading system will close the valve switch and cut off the power of the equipment according to the equipment operation requirements.

[0030] (6) If Figure 3 and Figure 4 As shown, the host computer interface settings: according to the loading requirements of the test program, use the WINCC configuration software to set different loading buttons on the host computer interface for manual loading operations and actual loading indication. ① Manual loading: Associate the loading button with the PLC variable, and set all status buttons to be mutually inverted to ensure that there is only one loading state. ② Actual loading indication: Set the button to change color dynamically. When automatic loading or manual loading switches to the corresponding loading amount, the corresponding loading button will light up to indicate the current loading amount.

[0031] When the test run program needs to be changed, if the engine operating status and the corresponding loading requirements are not newly added, just repeat step (3). If the engine operating status and the corresponding loading requirements are newly added, just continue the coding in the established coding table and then repeat steps (3), (5) and (6). Step (5) only requires adding the new coding to the corresponding loading trigger condition in the PLC program.

[0032] The method is used for simulating the test process of aircraft power distribution in the ground test of aircraft engines, that is, for the hydraulic pump loading and generator loading process in the ground test of aircraft engines.

[0033] Advantages of this method: replacing manual loading operation, realizing automatic loading during the test run, improving engine test run efficiency and safety; the adjustment of loading amount and loading time are not affected by the predetermined test run program. When the test run time of a certain stage needs to be extended during the engine test run or the engine jumps to other stages not in the predetermined order, it can be adjusted automatically without switching to the manual loading state or recompiling the PLC program after stopping, which can ensure the progress of the engine test run; when a fault occurs during the test run and unloading is required, loading can be automatically stopped at any time during the loading process without emergency stopping, which can ensure the safety of the engine and equipment; when the test run program is changed, this method only needs to update the code and add the new code to the corresponding loading amount trigger condition in the PLC program, without recompiling the PLC program, which greatly reduces the workload of PLC programming; it can automatically complete the preparation and unloading work before loading, without manual operation according to the test run stage, reducing the workload of operators, eliminating human operation errors, and improving the quality of the test run; Example 2 Take the bleed air power extraction test of a certain type of engine as an example: a certain engine is tested for bleed air power extraction according to the test outline. According to the test content, the test procedure covers 22 test stages including starting and stopping, and the stable state stay time is 49 minutes. In the past, when performing loading tests, manual loading requires operators to observe the engine operating parameters at all times, judge the engine operating status, and then manually operate the loading button on the upper computer interface according to the operating status to achieve loading; when performing loading tests according to the existing automatic loading technology, first set the loading map according to the test procedure, hydraulic pump loading flow, motor loading power and time, and then compile the PLC program and set the upper computer interface according to the loading map. When performing automatic loading tests, it is necessary to manually operate the upper computer to power the hydraulic loading valve of the generator and hydraulic loading system, and then click the automatic loading button. The loading system will automatically load according to the time and loading amount set in the loading map. After the set loading map is completed, the upper computer is manually operated to unload and the hydraulic loading valve of the generator and hydraulic loading system is powered off. The loading amount of the automatic loading method is linked with the predetermined operating state of the engine through the running time and sequence of each stage of the predetermined test program, and the loading amount cannot be dynamically adjusted according to the actual operating state of the engine. Therefore, during the test process, when the stage running time and sequence change, the problem of mismatch between the loading amount and the loading demand will occur, affecting the safe operation of the engine and the equipment system. The test program needs to be replaced and the loading map and PLC program must be reset. Now the automatic loading method of the present invention is used, and its steps are: 1. Determine the loading demand: extract the test program and requirements according to the engine bleed power, and sort out the 16 stages of the test program, which include 14 operating states of the engine, corresponding to 17 loading demands, as shown in Table 1 and Table 2,

[0034]

[0035] 2. Establish a coding table: Encode the 17 loading requirements corresponding to the 14 operating states according to "0, 1, 2, ... 15, 16", as shown in Table 3

[0036] 3. Test program and coding configuration: The 16 stages of the test program are re-divided into 18 stages based on the engine operating status and load requirements, and configured with the codes corresponding to the same operating status and load in the coding table, as shown in Table 4

[0037] 4. Establish communication between PLC and data acquisition software: the data acquisition software sends the code configured with the test program to the PLC through the defined channel, and the PLC determines the real-time test stage of the engine according to the received code; 5. PLC programming: Use ladder diagram to program according to the coding and corresponding loading requirements as well as the pre-loading preparation and unloading steps; 6. Upper computer interface setting: According to the generator loading and hydraulic pump loading requirements, 45KVA, 60KVA, 90KVA, 180KVA and 41L / min, 64L / min, 94L / min, 99L / min corresponding loading indicator lights are set on the upper computer interface to indicate the real-time loading status; as shown in Figure 2, Figure (a) is a hydraulic loading process diagram, Figure (b) is a process diagram of hydraulic automatic loading flow of 99L / min, Figure (c) is a process diagram of hydraulic automatic loading flow of 94L / min, 64L / min, 41L / min, Figure (d) is a generator loading process diagram and a process diagram of automatic loading of 60KVA, and Figure (e) is a process diagram of automatic loading of 90KVA, 135KVA, and 180KVA of the generator; When changing the test run program, if the engine operating state and the corresponding loading requirements are not newly added, just repeat step (3). If the engine operating state and the corresponding loading requirements are newly added, just continue the coding in the established coding table and then repeat steps (3), (5) and (6). Step (5) only requires adding the new coding to the corresponding loading trigger condition in the PLC program.

[0038] When using this method to test the test program 2, since the engine operating state and the corresponding loading requirements are not new compared with the test program 1, it is only necessary to repeat step (3) and reconfigure the test program and the coding table without changing the PLC program, as shown in Table 5 and Table 6;

[0039]

[0040] When using this method to test the test program 3, the engine operating state and the corresponding loading requirements are new compared to the test program 1, and the coding needs to be continued in the established coding table; as shown in Table 7 and Table 8

[0041]

[0042] Repeat step (3) to reconfigure the test program and the coding table, as shown in Table 9.

[0043] Then repeat (5) and (6), where step (5) only requires adding the new code to the corresponding load trigger condition in the PLC program, without the need to recompile the PLC program, effectively improving work efficiency.

[0044] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatus.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An automatic loading method for aircraft engine test, characterized in that: include, Establish a coding table based on the engine operating status and loading requirements; Configure the test program and the coding table to obtain the test program configuration code; Transmit the test program configuration code to the PLC through the data acquisition channel; PLC is programmed according to the received test program configuration code and writes the corresponding control logic instructions; Based on the control logic instructions issued by the PLC, the engine test automatic loading program is started, and the loading state of the engine is controlled to switch according to the loading requirements corresponding to the coding table, thereby realizing the automatic loading process of the engine test.

2. The automatic loading method for aircraft engine test run according to claim 1, characterized in that: Create a coding table, specifically: Encode the corresponding loading requirements under each operating state of the engine and establish a coding table; The loading requirements include hydraulic loading flow, electrical loading power and required loading time.

3. The automatic loading method for aircraft engine test run according to claim 1, characterized in that: The test program is configured with the coding table, specifically: The various stages of the test run program are split according to the operating status and load requirements, and arranged according to the preset stage order of the test run program. The various stages of the split test run program are configured according to the codes that correspond one-to-one with the operating status and the same operating status and load in the coding table.

4. The automatic loading method for aircraft engine test run according to claim 3, characterized in that: The coding table is provided with an unloading code, and the engine operation state corresponding to the unloading code is the last state before stopping in the test program.

5. The automatic loading method for aircraft engine test run according to claim 1, characterized in that: The commissioning program configuration code is transmitted to the PLC through the defined channel, specifically: Based on the data acquisition channel software, set up and add the test program configuration coding channel, add the data acquisition channel signal in the coding channel, and transmit the data acquisition channel signal of the test program configuration coding to the PLC in real time through the UDP protocol; A TRCV_C module is built in the PLC for receiving data acquisition channel signals.

6. The automatic loading method for aircraft engine test run according to claim 1, characterized in that: The PLC receives the test program configuration code for programming, specifically: The PLC receives the test program configuration code, and uses ladder diagrams to program the corresponding test program control logic based on the test program configuration code and the corresponding loading requirements as well as the pre-loading preparation and unloading step procedures. The PLC automatically loads the engine based on the programmed test program control logic.

7. The automatic loading method for aircraft engine test run according to claim 1, characterized in that: Also includes, According to the loading requirements, different loading buttons are set on the upper computer interface through WINCC configuration software for manual loading operation and actual loading indication; When loading manually, associate the load amount button with the PLC variable and set all status buttons to be mutually inverted so that there is only one loading state; Set the actual load amount indication as a dynamically changing button color. When automatic loading or manual loading switches to the corresponding load amount, the corresponding load amount button will light up to indicate the current load amount.

8. The automatic loading method for aircraft engine test run according to claim 7, characterized in that: Based on the control logic instructions issued by the PLC, the engine test automatic loading program is started, and the engine loading state is controlled to switch according to the loading requirements corresponding to the coding table, realizing the automatic loading process of the engine test, specifically: When the automatic loading button is manually operated and the program code for pre-start preparation is received, the engine automatic loading preparation function is triggered, and the hydraulic loading system and electric loading system of the engine will open the valve and supply power to the engine according to the engine operation requirements; The receiving of the test program code is used as the primary trigger condition for controlling the loading amount, and the untriggered unloading function set by the PLC is used as the interlocking condition. At the same time, the loading delay function is set by the PLC to ensure that the engine switches the loading demand in a steady state. When the three conditions of receiving the test program code, the unloading function is not triggered, and the delay timing is completed are met, the loading state is switched according to the loading demand corresponding to the coding table, realizing the automatic loading process of controlling the engine test; When the unloading code is received or the emergency unloading button is manually operated, the automatic unloading function set in the PLC is triggered, and the hydraulic loading system and electric loading system of the engine will close the valve switch and cut off the power of the engine according to the operating requirements of the engine.

9. The automatic loading method for aircraft engine test run according to claim 1, characterized in that: When the test program needs to be changed, if the engine operating state and the corresponding loading requirements are not newly added, it is only necessary to repeat the steps of configuring the test program and the coding table to re-obtain the test program configuration code; If the engine running state and the corresponding loading requirements are newly added, it is only necessary to continue the coding in the established coding table, and then repeat the test program and the coding table configuration steps. The PLC is programmed according to the received test program configuration code, and the corresponding control logic instruction steps are rewritten, thereby realizing the automatic loading process of controlling the engine test; The PLC is programmed according to the received test program configuration code, and the new code is added to the corresponding load trigger condition.

10. An automatic loading system for aircraft engine test, based on the automatic loading method for aircraft engine test according to any one of claims 1 to 9, characterized in that: include, Coding table building module, configuration module, data transmission module and PLC control module; The coding table building module is used to build a coding table according to the engine operating state and loading requirements; The configuration module is used to configure the test program and the coding table to obtain the test program configuration code; The data transmission module is used to transmit the test program configuration code to the PLC through the data acquisition channel; The PLC control module is used to program the PLC according to the received test program configuration code, and write the corresponding control logic instructions. Based on the control logic instructions issued by the PLC, the engine test automatic loading program is started, and the loading state of the engine is controlled to be switched according to the loading requirements corresponding to the coding table, thereby realizing the automatic loading process of controlling the engine test.

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