Electromechanical control test system and platform applied to aerospace

Abstract

The invention provides an electromechanical control testing system and platform applied to aerospace, and relates to the technical field of electromechanical testing. The electromechanical control test system comprises a control module, a multifunctional assembly and electromechanical control equipment. And the control module sends the configuration parameters to the electromechanical control equipment and adjusts the working mode of the electromechanical control equipment. Aiming at any working mode, the hardware detection module detects working parameters of the electromechanical control equipment in a loaded state in real time and constructs multi-data evaluation indexes according to the working parameters, and the evaluation indexes at least comprise differential transformer signals. And the control module receives the evaluation index through the communication simulation card and evaluates whether the working state of the electromechanical control equipment in the current working mode is abnormal or not according to the evaluation index. On the basis, the defect that in the prior art, an electromechanical control unit in the aerospace field cannot carry out tests related to closed-loop control over the rotating speed and the rotating angle of a load motor based on differential transformer signals can be overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical testing, and more particularly, to an electromechanical control testing system and platform applied to aerospace. Background Art

[0002] To continuously optimize the energy utilization and control information of the aircraft's electromechanical system and ensure the normal operation of the airborne equipment in the aircraft's electrical system, the more-electric aircraft has emerged. The Electro-Mechanical Control Unit (EMCU) is a particularly important module in the airborne equipment. It is a Line Replaceable Unit (LRU) that provides a remote interface between the aircraft flight control electronics (FCE) and the electromechanical and electro-hydraulic actuators. For example, the electromechanical control unit can convert discrete signals, digital FCE commands, and switch inputs into analog / discrete commands for positioning the Spoiler Electro-Mechanical Actuator (SEMA) or HSTA.

[0003] Generally, before the installation and application of aircraft airborne electrical and electronic equipment, the above equipment will be tested to determine whether its performance, functions, and parameters are correct, and then to judge whether it meets the flight standards. However, in the prior art, there is a lack of an electromechanical control testing scheme that can realize the testing related to the speed control of the aircraft motor based on the signals sent by differential transformer sensors, such as Linear Variable Differential Transformers (LVDT) and Rotary Variable Differential Transformers (RVDT). Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an electromechanical control testing system and platform applied to aerospace, which can overcome the problem that the prior art cannot perform the testing related to the closed-loop control of the rotational speed and rotation angle of the load motor on the electromechanical control unit in the aerospace field based on the signals of differential transformers, such as the signals sent by LVDT / RVDT sensors.

[0005] To achieve the above purpose, the technical solutions adopted in the embodiments of the present invention are as follows:

[0006] In a first aspect, the present invention provides an electromechanical control testing system applied to aerospace, including: a control module, a multifunctional component, and an electromechanical control device; the multifunctional component includes a plurality of hardware detection modules; the plurality of hardware detection modules at least include a communication simulation card;

[0007] Each hardware detection module is respectively connected to the electromechanical control device and the control module;

[0008] The control module is used to send configuration parameters to the electromechanical control device and adjust the working mode of the electromechanical control device;

[0009] For any working mode, a hardware detection module is configured to detect in real time the working parameters of the electromechanical control device in the loaded state, and construct an evaluation index of multiple data based on the working parameters; wherein, the evaluation index at least includes a differential transformer signal.

[0010] A control module is configured to receive the evaluation index through a communication simulation card, and evaluate whether the working state of the electromechanical control device in the current working mode is abnormal based on the evaluation index.

[0011] Optionally, when multiple hardware detection modules include a switch simulation card, the switch simulation card is respectively connected to the control module and the electromechanical control device; the communication simulation card is respectively connected to the control module and the electromechanical control device.

[0012] The control module is configured to configure discrete address information for the electromechanical control device through the switch simulation card.

[0013] The control module is further configured to obtain and determine whether the configuration information is within a first normal threshold through the communication simulation card, so as to evaluate whether the loading position detection function of the current electromechanical control device is normal; wherein, the configuration information is parsed by the electromechanical control device based on the discrete address information.

[0014] Optionally, when multiple hardware detection modules include a differential transformer unit and the differential transformer signal includes a displacement amount, the differential transformer unit is respectively connected to the control module and the electromechanical control device.

[0015] The control module is configured to send a first control instruction to the differential transformer unit, so that the differential transformer unit sends displacement configuration parameters to the electromechanical control device.

[0016] The electromechanical control device is configured to receive and calculate the displacement amount of the differential transformer unit in different working modes based on the displacement configuration parameters.

[0017] The control module is further configured to obtain the displacement amount through the communication simulation card, and judge whether the working state of the electromechanical control device in different working modes of the differential transformer unit is normal based on the displacement amount.

[0018] Optionally, the displacement configuration parameters include a first sine signal and a second sine signal, and there is a phase difference between the first sine signal and the second sine signal.

[0019] Wherein, the calculation formula for the first displacement amount of the electromechanical control device when the differential transformer unit is in the spoiler mode satisfies:

[0020] L1 = 10.672 * (Va - Vb) / (Va + Vb);

[0021] The calculation formula for the second displacement amount of the electromechanical control device when the differential transformer unit is in the actuator mode satisfies:

[0022] L2 = 0.80 * (Va - Vb) / (Va + Vb);

[0023] Wherein, L1 is the first displacement; L2 is the second displacement; Va is the first sine signal; Vb is the second sine signal.

[0024] Optionally, the control module is further configured to determine whether the first displacement is within a fourth normal threshold and whether the second displacement is within a fifth normal threshold. If both are, it is determined that the operating state of the electromechanical control device in the spoiler mode of the differential transformer unit is normal.

[0025] Optionally, the multifunctional component further includes an electrical analysis module; the electrical analysis module is respectively connected to the control module and the electromechanical control device;

[0026] The electrical analysis module is configured to obtain a first electrical parameter when the electromechanical control device is in the displacement detection function; wherein, the first electrical parameter is the received parameter when the electromechanical control device is in a normal connection state;

[0027] The control module is configured to obtain and determine whether the first electrical parameter is within a second normal threshold to evaluate whether the reception state of the electromechanical control device in the displacement detection function is normal.

[0028] Optionally, the electrical analysis module is further configured to obtain a second electrical parameter in the short - circuit state when the electromechanical control device is in the displacement detection function; wherein, the second electrical parameter is the received parameter when the electromechanical control device is in the short - circuit state;

[0029] The control module is configured to obtain and determine whether the second electrical parameter is within a third normal threshold to evaluate whether the reception state of the electromechanical control device in the displacement detection function is normal.

[0030] Optionally, the electrical analysis module is further configured to detect the input voltage of the electromechanical control device;

[0031] The control module is further configured to receive and determine whether the input voltage is in a normal state; if it is in a normal state, a second control instruction is sent to the hardware detection module to read the enable state of the electromechanical control device and the address information in the startup state to verify whether the electromechanical control device starts successfully.

[0032] Optionally, the control module is configured to send a third control instruction to the electromechanical control device through a communication simulation card to adjust a first operating parameter of the electromechanical control device in the spoiler mode, so that the load motor rotates to a preset angle;

[0033] The electromechanical control device is further configured to obtain a measured spoiler signal corresponding to when the load motor rotates to the preset angle through the differential transformer unit;

[0034] The electromechanical control device is also used to determine a theoretical turbulence signal based on the operating parameters; and determine whether the measured turbulence signal is normal based on the theoretical turbulence signal to evaluate whether the turbulence mode of the electromechanical control device is normal;

[0035] Or a control module, which is used to send a fourth control instruction to the electromechanical control device through a communication simulation card to adjust the second operating parameter of the electromechanical control device in the actuator mode, so that the load motor rotates to a preset angle;

[0036] The electromechanical control device is also used to obtain the measured actuator signal corresponding to the load motor rotating to the preset angle through a differential transformer unit;

[0037] The electromechanical control device is also used to determine a theoretical actuator signal based on the operating parameters; and determine whether the measured actuator signal is normal based on the theoretical actuator signal to evaluate whether the actuator mode of the electromechanical control device is normal.

[0038] In a second aspect, the present invention also provides an electromechanical control test platform, including the electromechanical control test system according to any one of the first aspects above.

[0039] An electromechanical control test system and platform provided by an embodiment of the present invention have the following beneficial effects:

[0040] In this application, the electromechanical control test system includes a control module, a multifunctional component, and an electromechanical control device; the multifunctional component includes multiple hardware detection modules; the multiple hardware detection modules at least include a communication simulation card. Each hardware detection module is respectively connected to the electromechanical control device and the control module. The control module is used to send configuration parameters to the electromechanical control device to adjust the working mode of the electromechanical control device. For any working mode, the hardware detection module is used to detect the working parameters of the electromechanical control device in the loaded state in real time, and construct an evaluation index of multi-data based on the working parameters. The evaluation index at least includes a differential transformer signal. The control module is used to receive the evaluation index through the communication simulation card and evaluate whether the working state of the electromechanical control device in the current working mode is abnormal. Based on this, this application provides an electromechanical control test system and platform applied to aerospace, which can improve the test method for the electromechanical control unit in the prior art, especially can perform tests related to the closed-loop control of the load motor speed and rotation angle based on the differential transformer signal, for example, the signal sent by an LVDT / RVDT sensor.

[0041] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and detailed descriptions are made in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0043] Figure 1 Fig. 4 shows one of the structural schematic diagrams of the electromechanical control test system provided by the embodiment of the present invention;

[0044] Figure 2 Fig. 8 shows another structural schematic diagram of the electromechanical control test system provided by the embodiment of the present invention;

[0045] Figure 3 Fig. 12 shows a third structural schematic diagram of the electromechanical control test system provided by the embodiment of the present invention;

[0046] Figure 4 Fig. 16 shows a fourth structural schematic diagram of the electromechanical control test system provided by the embodiment of the present invention;

[0047] Figure 5 Fig. 20 shows the structural schematic diagram of the electromechanical control test platform provided by the embodiment of the present invention.

[0048] Icons: 10 - electromechanical control test system; 101 - control module; 102 - multi-functional component; 103 - electromechanical control device; 201 - hardware detection module; 202 - communication simulation card; 203 - switch simulation card; 204 - electrical analysis module; 205 - differential transformer unit; 20 - electromechanical control test platform; 21 - industrial control computer; 22 - adapter; 23 - three-phase intermediate frequency power supply; 24 - loading system; 25 - electrical analysis system; 26 - switch. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0051] It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0052] As described in the background art, in the field of aerospace, before the installation of aircraft on-board electrical and electronic equipment, it is required to detect and inspect the above-mentioned equipment. For example, it is necessary to check whether its performance, function and parameters are correct, and whether it meets the flight standards. However, in the prior art, there is temporarily no way to test the speed control of an aircraft motor for an electromechanical control unit on an aircraft, for example, an EMCU module can be based on a differential transformer signal, that is, a signal sent by an LVDT / RVDT sensor.

[0053] Based on this, this embodiment realizes tests related to the closed-loop control of the rotational speed and rotation angle of a load motor based on a differential transformer signal.

[0054] Please refer to Figure 1 , Figure 1 FIG. shows a schematic structural diagram of an electromechanical control test system 10. In this embodiment, the electromechanical control test system 10 includes: a control module 101, a multifunctional component 102, and an electromechanical control device 103; the multifunctional component 102 includes a plurality of hardware detection modules 201; each hardware detection module 201 is respectively connected to the electromechanical control device 103 and the control module 101.

[0055] The control module 101 is used to send configuration parameters to the electromechanical control device 103 to adjust the working mode of the electromechanical control device 103.

[0056] Wherein, when at least a communication simulation card 202 is included in the plurality of hardware detection modules 201,

[0057] For any working mode, the hardware detection module 201 is used to detect in real time the working parameters of the electromechanical control device 103 in the loaded state, and construct an evaluation index of multiple data based on the working parameters.

[0058] Wherein, the evaluation index at least includes a differential transformer signal.

[0059] The control module 101 is configured to receive evaluation metrics via the communication simulation card 202 and evaluate whether the working state of the electro-mechanical control device 103 is abnormal under the current working mode based on the evaluation metrics.

[0060] In this embodiment, the multi-functional component 102 may be composed of multiple hardware detection modules 201, such as the communication simulation card 202, which may be an ADB data communication card, to establish a communication connection between the control module 101 and the electro-mechanical control device 103, synchronize the control instructions of the control module 101 to devices such as the electro-mechanical control device 103 and / or feedback the real-time data parameters detected by devices such as the electro-mechanical control device 103 to the control module 101, thereby further improving the automation efficiency of the electro-mechanical control test system.

[0061] In this embodiment, the electro-mechanical control device 103 is the above-mentioned Electro-Mechanical Control Unit (EMCU). By enabling adjustment or configuration parameter settings of the control module, the electro-mechanical control device can be switched to the corresponding working mode to achieve the load test of the electro-mechanical control unit under the corresponding working mode.

[0062] For any working mode, when the electro-mechanical control device is in different working states, the present invention can use the hardware detection module to detect the working parameters of the electro-mechanical control device in the loaded state in real time, such as current and / or voltage, construct an evaluation metric of multiple data, and send data such as different electrical parameters to the control module, so that the control module can evaluate whether the working state of the electro-mechanical control device is abnormal under the current working mode based on the evaluation metric.

[0063] In this embodiment, the evaluation metric includes multiple data types, including but not limited to current and / or voltage and / or power and / or number of bytes. It should be noted that the evaluation metric in this application at least includes the differential transformer signal, which is used to characterize the relevant signals obtained by exciting or monitoring the rotary or linear variable differential transformer (R / LVDT) of the electro-mechanical control device, and the differential transformer signal includes data such as displacement amount without limitation.

[0064] Among them, this embodiment can realize the communication relationship between the control module and the electro-mechanical control device through each hardware detection module among the multi-functional components, and simulate different signal outputs of the electro-mechanical control device in various working modes or working states, so that the control module can make an abnormal judgment on the working state of the electro-mechanical control device under the current working mode based on the corresponding evaluation metric.

[0065] In this embodiment, the electromechanical control test system includes, but is not limited to, test functions such as start-up test, communication test, and differential transformer test of electromechanical control equipment. It should be noted that the electromechanical control test system provided in this embodiment does not limit the usage order of the above test functions, and can be selected according to actual situations.

[0066] In a possible implementation manner, the multi-functional component in this embodiment may include hardware detection modules such as a communication simulation card, a switch simulation card, and a differential transformer unit, to simulate the data parameters of external sensors (such as the differential transformer unit) when the aircraft is in various working states. The electrical analysis module may include devices such as a multimeter and an oscilloscope.

[0067] The test functions of the above electromechanical control test system will be introduced in detail below.

[0068] Embodiment 1. Start-up test of the electromechanical control test system

[0069] Please, on the basis of Figure 1 , refer to Figure 2 , Figure 2 which shows another structural schematic diagram of the electromechanical control test system 10 in the embodiment; in this embodiment, the multiple hardware detection modules 201 under the multi-functional component 102 further include a switch simulation card 203 and an electrical analysis module 204. The switch simulation card 203 is respectively connected to an external power supply and the electromechanical control equipment 103 to supply power to the electromechanical control equipment 103 through the switch simulation card 203. The electrical analysis module 204 is respectively connected to the control module 101 and the electromechanical control equipment 103. Among them, the external power supply can be a three-phase intermediate frequency power supply.

[0070] In a possible implementation manner, the electromechanical control test system in this embodiment may include a switch to realize the connection between hardware detection modules such as the communication simulation card, the switch simulation card, and the electrical analysis module and the control module through the switch.

[0071] The electrical analysis module 204 is also used to detect the input voltage of the electromechanical control equipment.

[0072] The control module 101 is also used to receive and judge whether the input voltage is in a normal state. If it is in a normal state, it sends a second control instruction to the hardware detection module to read the enable state of the electromechanical control equipment and the address information in the start-up state, so as to verify whether the electromechanical control equipment starts successfully. In this embodiment, the control module reads the enable state of the electromechanical control equipment while obtaining the address information in the start-up state, and further verifies whether the electromechanical control equipment starts successfully based on the two parameters of the address information and the enable state in the start-up state, improving the detection accuracy.

[0073] In this embodiment, the electrical analysis module can obtain the electrical parameters input on the switch simulation card and transmit them to the control module.

[0074] The control module 101 is used to determine whether the electrical parameters meet the normal three-phase current input range. For example, 0.2 Arms to 0.4 Arms.

[0075] The control module 101 is also used to, after determining that the electrical parameters meet the normal three-phase current input range, read the address information in the register on the electromechanical control device through the communication simulation card, so as to determine whether the electromechanical control device starts normally through the address information.

[0076] In a possible implementation manner, the control module can also generate a summary, such as an Auto-ATP table, for the user to obtain the analysis results in time and improve the data visualization of the electromechanical control test system.

[0077] Embodiment 2: Communication test of the electromechanical control test system

[0078] Please continue to refer to Figure 2 , in this embodiment, the control module 101 and the electromechanical control device 103 are implemented through the communication simulation card 202. Before performing the function test of the electromechanical control test system 10, it is necessary to ensure that the communication simulation card 202 works properly.

[0079] In a possible implementation manner, taking the first flight control electrical information, that is, FCE-EMCU information (Flight-Control-Electronics Electro-Mechanical Control Unit); the second flight control electrical information, that is, EMCU-FCE information as an example, the first flight control electrical information usually consists of 7 to 16-bit words, and the second flight control electrical information usually consists of 24 to 16-bit words. The above two kinds of information are both within one frame signal. In this embodiment, the control module 101 can send a control signal to the communication simulation card 202, and then further determine whether the communication simulation card 202 is abnormal by obtaining information such as the message length on the communication simulation card 202, so as to ensure the normal communication of the electromechanical control test system 10.

[0080] In a possible implementation manner, in this embodiment, word 1 in the data transmitted on the communication simulation card is a tag, word 2 is the length, and the last word is the cyclic redundancy check code CRC. Based on this, it is possible to evaluate whether the communication of the electromechanical control test system is normal by verifying whether the number of words or bytes corresponding to the message length of the transmitted signal is consistent.

[0081] It should be noted that the above embodiments only provide an implementation manner for the communication test of the electromechanical control test system, and the present application does not limit the specific parameters corresponding to the above verification method.

[0082] Example 3: Loading Test of the Electromechanical Control Test System

[0083] Please continue to refer to Figure 2 In this embodiment, the control module 101 is further configured to configure discrete address information for the electromechanical control device 103 through the switch simulation card 203.

[0084] The control module 101 is further configured to obtain and determine whether the configuration information is within the first normal threshold through the communication simulation card 202, so as to evaluate whether the loading position detection function of the current electromechanical control device 103 is normal.

[0085] Among them, the configuration information is parsed by the electromechanical control device 103 based on the discrete address information.

[0086] Generally, there are multiple electromechanical control devices 103 on the aircraft. Each electromechanical control device 103 is distributed in different parts of the aircraft, such as the nose, wings, etc. The parameter ranges obtained by the electromechanical control devices 103 in different positions are different. Based on this, the present application provides a method for determining the position of the electromechanical control device 103.

[0087] In this embodiment, the control module 101 can configure discrete address information, such as digital quantities, to the corresponding electromechanical control device 103 through the switch simulation card 203. At this time, the discrete address information can be used as the theoretical value of the control module 101, that is, the first normal threshold, to evaluate whether the information fed back by the electromechanical control device 103 is correct.

[0088] For example, the control module 101 can obtain the information fed back by each electromechanical control device 103 respectively through the communication simulation card 202, and determine whether the configuration information is within the first normal threshold, so as to evaluate whether the loading position detection function of the current electromechanical control device 103 is normal.

[0089] Among them, the configuration information is parsed by the electromechanical control device 103 based on the discrete address information.

[0090] In a possible implementation manner, it is assumed that four discrete address information can be configured, namely ID3, ID2, ID1, ID0. When the above configuration is discretely set to O, G, G, G, where O represents Open; G represents Ground; this corresponding position is the position of the first spoiler. The control module 101 needs to obtain the information of the corresponding electromechanical control device 103 through the communication simulation card 202, that is, the corresponding configuration information. When bits 10 - 5 of word 1 of the configuration information are 110100, it is determined that the loading position at the current position is correct at this time.

[0091] Example 4: Differential Transformer Test of the Electromechanical Control Test System

[0092] Please, on the basis of Figure 2 , refer to Figure 3 , Figure 3 which shows another structural schematic diagram of the electromechanical control test system 10 in the present invention; a plurality of hardware detection modules 201 under the multifunctional component 102 include a differential transformer unit 205; the differential transformer unit 205 is respectively connected to the control module 101 and the electromechanical control device 103.

[0093] In this embodiment, the control module 101 is configured to send a first control instruction to the differential transformer unit 205, so that the differential transformer unit 205 sends displacement configuration parameters to the electromechanical control device 103.

[0094] The electromechanical control device 103 is configured to receive and calculate the displacement of the differential transformer unit 205 in different working modes according to the displacement configuration parameters.

[0095] The control module 101 is further configured to obtain the displacement through the communication simulation card 202, and determine whether the working state of the electromechanical control device 103 is normal in different working modes of the differential transformer unit 205 according to the displacement.

[0096] Normally, the differential transformer unit 205 can be used to adjust the displacement of the load motor. Based on this, this embodiment can realize the test of the differential transformer by detecting the displacement.

[0097] In a possible implementation manner, the differential transformer unit 205 may be an LVDT / RVDT analog board. The control module 101 sends a control instruction to the LVDT / RVDT analog board, so that the LVDT / RVDT analog board outputs different displacement configuration parameters to the electromechanical control device 103. The displacement configuration parameters may be two sine signals with a certain phase difference, that is, the first sine signal Va and the second sine signal Vb described in this application. The electromechanical control device 103 then calculates the displacement of the differential transformer unit 205 in different working modes based on the above displacement configuration parameters. The control module 101 can obtain the above displacement through the communication simulation card 202 to determine whether the working state of the current differential transformer unit 205 is normal in different working modes according to the displacement.

[0098] In this embodiment, the calculation formula L1 of the first displacement of the electromechanical control device 103 when the differential transformer unit 205 is in the spoiler mode satisfies: L1 = 10.672 * (Va - Vb) / (Va + Vb). The calculation formula of the second displacement L2 of the electromechanical control device 103 when the differential transformer unit 205 is in the actuator mode satisfies: L2 = 0.80 * (Va - Vb) / (Va + Vb).

[0099] Among them, when the differential transformer unit 205 is in the spoiler mode, the control module 101 is further configured to determine whether the first displacement amount is within the fourth normal threshold, and at the same time, it is also necessary to determine whether the second displacement amount is within the fifth normal threshold. If both meet the corresponding threshold ranges, it is determined that the working state of the electromechanical control device 103 when the differential transformer unit 205 is in the spoiler mode is normal.

[0100] Similarly, when the differential transformer unit 205 is in the actuator mode, the control module 101 is further configured to respectively determine whether the first displacement amount and the second displacement amount respectively meet the fifth normal threshold and the sixth normal threshold. If so, it is determined that the working state of the electromechanical control device 103 when the differential transformer unit 205 is in the actuator mode is normal.

[0101] In a feasible manner, it is assumed that the load motor needs to retract 1.421 feet. At this time, the corresponding first sine signal Va and second sine signal Vb theoretically need to meet 0.364±0.100Vrms and 1.422±0.100Vrms respectively. If the displacement amount calculated by the differential transformer unit 205 does not meet the above range, it indicates that the working state of the differential transformer unit 205 in the current working mode is abnormal; otherwise, it is in a normal state.

[0102] This embodiment also provides a conventional detection method for the electromechanical control device to evaluate whether the differential transformer function is normal.

[0103] Please refer to Figure 2 on the basis of Figure 4 to show the structural schematic diagram of another electromechanical control test system in the embodiment of the present invention; in this embodiment, the electrical analysis module 204 is configured to obtain the first electrical parameter when the electromechanical control device 103 is in the displacement detection function. Figure 4

[0104] Among them, the first electrical parameter is the received parameter when the electromechanical control device 103 is in a normal connection state. For example, the pins J5:42 and J5:48 of the electromechanical control device 103 are normally connected.

[0105] The received parameter may include the amplitude and / or frequency and / or DC configuration and / or total harmonic distortion (THD) of the LVDT excitation voltage generated by the electromechanical control device 103.

[0106] ​The control module 101 is used to obtain and determine whether the above first electrical parameter is within the second normal threshold value to evaluate whether the receiving state of the electromechanical control device 103 is normal when in the displacement detection function. For example, whether the AC voltage between pin J5:42 and pin J5:48 of the electromechanical control device 103 satisfies 4.75Vrms ± 5.0%. If so, the receiving state of the electromechanical control device 103 is normal when in the displacement detection function. And / or whether the frequency range of the LVDT excitation voltage is 1.80KHz ± 81Hz.

[0107] This embodiment also provides another conventional detection method for the electromechanical control device to evaluate whether the differential transformer function is normal. The difference from the previous embodiment is that in this embodiment, the second electrical parameter is the receiving parameter when the electromechanical control device 103 is in the short-circuited state; for example, pins J5:42 and J5:48 of the electromechanical control device 103 are short-circuited, and whether the corresponding current at this time satisfies the short-circuit current < 500mA. If so, the electromechanical control device 103 is in the normal state.

[0108] Please continue to refer to Figure 4 , this embodiment also provides another conventional detection method for the electromechanical control device to evaluate whether the differential transformer function is normal.

[0109] Specifically, the control module 101 can set the first sine signal Va of the differential transformer unit 205 on the electromechanical control device 103 to zero, set the second sine signal Vb within a preset range. The control module 101 can obtain the detection parameters sent by the differential transformer unit 205 through the communication simulation card 202, and determine whether the working state of the electromechanical control device 103 in the differential transformer unit 205 is normal through the status detection value on the detection parameters.

[0110] For example, when the first sine signal Va is set to zero and the second sine signal Vb satisfies 0.3V - 1.422V, when the status detection value is 1, it is determined that the full sweep (monitoring) function of the differential transformer unit 205 on the electromechanical control device 103 is normal.

[0111] Embodiment Five: Testing the spoiler mode and / or the actuator mode of the electromechanical control test system 10

[0112] Please continue to refer to Figure 4 , in this embodiment, the control module 101 is further used to send a third control instruction to the electromechanical control device 103 through the communication simulation card 202 to adjust the first operating parameter of the electromechanical control device 103 in the spoiler mode, so that the load motor rotates to a preset angle.

[0113] The electromechanical control device 103 is further used to obtain the measured spoiler signal corresponding to when the load motor rotates to the preset angle through the differential transformer unit 205.

[0114] The electromechanical control device 103 is also used to determine a theoretical spoiler signal based on the operating parameters; and determine whether the measured spoiler signal is normal based on the theoretical spoiler signal, so as to evaluate whether the spoiler mode of the electromechanical control device 103 is normal.

[0115] In this embodiment, the communication simulation card 202 can be set to send a control instruction to the electromechanical control device 103, set the electromechanical control device 103 to the spoiler mode, and at the same time adjust the first operating parameter in the spoiler mode. At this time, the electromechanical control device 103 adjusts the load motor to rotate so that it rotates to a preset angle correspondingly. After the load motor rotates to the preset angle, the electromechanical control device 103 outputs the current differential transformer signal to the control module 101, so as to evaluate the state of the electromechanical control device 103 in the current mode through the control module 101.

[0116] In a possible implementation manner, if the electromechanical control device 103 is set to the active state in the spoiler mode, the electromechanical control device 103 is powered on and running at this time. Assume that the spoiler is commanded to measure the speed of the motor in each direction of the full drive stroke (+60deg and -12.5deg). The input power supply parameters for all spoiler tests are: the input voltage of the electromechanical control device 103 is set to 211VAC, 360Hz. When the ADB message word in the control module 101 is FCE-EMCU, if the brake word is 4 bits 10, the CE tube command word is 4 bits 11; the automatic mode selection word is 4 bits 12; the engine operation word is 4 bits 13; the spoiler command word is 5. In this state, it can be determined that the electromechanical control device 103 operates correctly in this mode.

[0117] Similarly, when in the cruise mode, the control module 101 can obtain whether the under-voltage and under-frequency state meets the expected result through the communication simulation card 202, so as to determine whether the electromechanical control device 103 operates correctly in this mode.

[0118] Similarly, the control module 101 can also be used to send a fourth control instruction to the electromechanical control device 103 through the communication simulation card 202, and adjust the second operating parameter of the electromechanical control device 103 in the actuator mode, so that the load motor rotates to a preset angle.

[0119] The electromechanical control device 103 is also used to obtain the measured actuator signal corresponding to when the load motor rotates to the preset angle through the differential transformer unit 205.

[0120] The electromechanical control device 103 is also used to determine a theoretical actuator signal based on the operating parameters; and determine whether the measured actuator signal is normal based on the theoretical actuator signal, so as to evaluate whether the actuator mode of the electromechanical control device 103 is normal.

[0121] In this embodiment, when the electromechanical control device 103 is in the normal mode (active mode), the electromechanical control device 103 responds to the FCE adjustment command only through the communication simulation card 202; among them, the FCE adjustment command includes low aircraft control input and related flight deck input stabilizer adjustment, and the flight deck command is input through the adjustment switch (spare adjustment switch) on the control wheel and control stand. In this mode, the brake release and the power motor can be adjusted through the control module 101 during the adjustment cycle, for example, by adjusting the enable simulation discrete input to the electromechanical control device 103. When the electromechanical control device 103 can fine-tune the command according to the communication simulation card 202, the engine rotates when the sequence brake is released; at the same time, when the channel is not commanded to be trimmed, the brake will be closed and the motor will be powered off.

[0122] In another implementable manner, if it is in the standby mode, at this time the drive channel is active, and its output rate only responds to the direct input of the cockpit standby fine-tuning switch. In the standby mode, within a fine-tuning cycle, an effective trimming command for releasing the sequence brake from the alternating trimming switch and supplying power to the motor. When the channel is not commanded to be trimmed, the brake will be closed and the motor will be powerless. The position resolver shall not be placed near the end brake. The drive channel shall be in the standby mode under the following conditions: ① The data bus is invalid. ② There is no fault inside the EMCU internal safety monitor. If the operating state and data monitoring state of the electromechanical control device during the test meet the above description, that is, the performance of the electromechanical control device is qualified.

[0123] Based on this, the present invention provides an electromechanical control test system applied to aerospace, which relates to the technical field of electromechanical testing. The electromechanical control test system includes a control module, a multi-functional component, and an electromechanical control device. The control module sends configuration parameters to the electromechanical control device to adjust the working mode of the electromechanical control device. For any working mode, the hardware detection module real-time detects the working parameters of the electromechanical control device when it is in the loaded state, and constructs an evaluation index of multi-data based on the working parameters. The evaluation index at least includes the differential transformer signal. The control module receives the evaluation index through the communication simulation card, and evaluates whether the working state of the electromechanical control device in the current working mode is abnormal based on the evaluation index. Based on this, the present invention can overcome the problem that the prior art cannot perform tests related to the control of the load motor speed based on the differential transformer signal.

[0124] With the same idea as the previous embodiment, the present invention also provides an electromechanical control test platform applied to aerospace, including the electromechanical control test system according to any item in the first aspect above.

[0125] In a possible implementation, the electromechanical control test platform can be a 19-inch standard cabinet, including an electromechanical control test system, that is, integrating a control module, a multi-functional component, and electromechanical control equipment. Among them, the control module can be integrated into the industrial control computer 21. Please refer to Figure 5 , Figure 5 FIG. shows a schematic structural diagram of an electromechanical control test platform applied to aerospace in this embodiment. The electromechanical control test platform 20 includes a switch 26, an adapter 22, a three-phase intermediate frequency power supply 23, a loading system 24, and an electrical analysis system 25; the loading system 24 includes a load motor; the electrical analysis system 25 is integrated with an electrical analysis module, such as an oscilloscope, a multimeter, etc.; the adapter 22 is integrated with hardware simulation boards such as a communication simulation card, a switch simulation card, and a differential transformer unit. Among them, the industrial control computer 21 is respectively connected to the three-phase intermediate frequency power supply 23, the adapter 22, and the electrical analysis system 25 through the switch 26; the electromechanical control device 103 is also connected to the adapter 22 and the loading system 24.

[0126] Based on this, the electromechanical control test platform provided in this embodiment can use the control module to implement the function detection of the electromechanical control equipment based on the multi-functional component, and can improve the test method for the electromechanical control unit in the aerospace field in the prior art. In particular, it can be based on the differential transformer signal, for example, the signal sent by the LVDT / RVDT sensor, to implement the test related to the closed-loop control of the load motor speed and rotation angle.

[0127] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromechanical control test system applied to aerospace, characterized in that, Including: A control module, a multi-functional component, and an electromechanical control device; the multi-functional component includes a plurality of hardware detection modules; The plurality of hardware detection modules at least includes a communication simulation card; Each of the hardware detection modules is respectively connected to the electromechanical control device and the control module; The control module is configured to send configuration parameters to the electromechanical control device and adjust the working mode of the electromechanical control device; For any working mode, the hardware detection module is configured to detect in real time the working parameters of the electromechanical control device in a loaded state and construct an evaluation index of multi-data based on the working parameters; wherein, the evaluation index at least includes a differential transformer signal; The control module is configured to receive the evaluation index through the communication simulation card and evaluate whether the working state of the electromechanical control device in the current working mode is abnormal based on the evaluation index.

2. The electro-mechanical control test system according to claim 1, wherein When the plurality of hardware detection modules includes a switch simulation card, the switch simulation card is respectively connected to the control module and the electromechanical control device; the communication simulation card is respectively connected to the control module and the electromechanical control device; The control module is configured to configure discrete address information for the electromechanical control device through the switch simulation card; The control module is further configured to obtain and determine whether the configuration information is within a first normal threshold through the communication simulation card to evaluate whether the loading position detection function of the current electromechanical control device is normal; wherein, the configuration information is resolved by the electromechanical control device based on the discrete address information.

3. The electromechanical control test system according to claim 1, wherein When the plurality of hardware detection modules includes a differential transformer unit and the differential transformer signal includes a displacement amount, the differential transformer unit is respectively connected to the control module and the electromechanical control device; The control module is configured to send a first control instruction to the differential transformer unit to cause the differential transformer unit to send displacement configuration parameters to the electromechanical control device; The electromechanical control device is configured to receive and calculate the displacement amount of the differential transformer unit in different working modes based on the displacement configuration parameters; The control module is further configured to obtain the displacement amount through the communication simulation card and determine whether the working state of the electromechanical control device in different working modes of the differential transformer unit is normal based on the displacement amount.

4. The electro-mechanical control test system according to claim 3, wherein The displacement configuration parameters include a first sine signal and a second sine signal, and there is a phase difference between the first sine signal and the second sine signal; Wherein, the calculation formula for the first displacement amount of the electromechanical control device when the differential transformer unit is in the spoiler mode satisfies: L1 = 10.672 * (Va - Vb) / (Va + Vb); The calculation formula for the second displacement amount of the electromechanical control device when the differential transformer unit is in the actuator mode satisfies: L2 = 0.80 * (Va - Vb) / (Va + Vb); In the formula, L1 is the first displacement amount; L2 is the second displacement amount; Va is the first sine signal; Vb is the second sine signal.

5. The electromechanical control test system according to claim 4, wherein The control module is further configured to determine whether the first displacement amount is within a fourth normal threshold and whether the second displacement amount is within a fifth normal threshold. If both are, it is determined that the operating state of the electromechanical control device when the differential transformer unit is in the spoiler mode is normal.

6. The electromechanical control test system according to claim 3, characterized in that The multifunctional component further includes an electrical analysis module; the electrical analysis module is respectively connected to the control module and the electromechanical control device; The electrical analysis module is configured to obtain a first electrical parameter when the electromechanical control device is in the displacement detection function; wherein, the first electrical parameter is the received parameter when the electromechanical control device is in a normal connection state; The control module is configured to obtain and determine whether the first electrical parameter is within a second normal threshold to evaluate whether the reception state of the electromechanical control device is normal when in the displacement detection function.

7. The electromechanical control test system according to claim 6, wherein The electrical analysis module is further configured to obtain a second electrical parameter when the electromechanical control device is in a short-circuit state during the displacement detection function; wherein, the second electrical parameter is the received parameter when the electromechanical control device is in a short-circuit state; The control module is configured to obtain and determine whether the second electrical parameter is within a third normal threshold to evaluate whether the reception state of the electromechanical control device is normal when in the displacement detection function.

8. The electromechanical control test system according to claim 6, wherein The electrical analysis module is further configured to detect the input voltage of the electromechanical control device; The control module is further configured to receive and determine whether the input voltage is in a normal state; If it is in a normal state, a second control instruction is sent to the hardware detection module to read the enable state of the electromechanical control device and the address information in the startup state to verify whether the electromechanical control device starts successfully.

9. The electromechanical control test system according to claim 3, wherein The control module is configured to send a third control instruction to the electromechanical control device through the communication simulation card to adjust a first operating parameter of the electromechanical control device in the spoiler mode, so that the load motor rotates to a preset angle; The electromechanical control device is further configured to obtain a measured spoiler signal corresponding to when the load motor rotates to the preset angle through the differential transformer unit; The electromechanical control device is further configured to determine a theoretical spoiler signal based on the operating parameter; and determine whether the measured spoiler signal is normal based on the theoretical spoiler signal to evaluate whether the spoiler mode of the electromechanical control device is normal; Or the control module is configured to send a fourth control instruction to the electromechanical control device through the communication simulation card to adjust a second operating parameter of the electromechanical control device in the actuator mode, so that the load motor rotates to the preset angle; The electromechanical control device is further configured to obtain a measured actuator signal corresponding to when the load motor rotates to the preset angle through the differential transformer unit; The electromechanical control device is further configured to determine a theoretical actuation signal based on the operating parameters; and determine whether the measured actuation signal is normal according to the theoretical actuation signal, so as to evaluate whether the actuator mode of the electromechanical control device is normal.

10. An electromechanical control test platform applied to aerospace, characterized in that, It includes the electromechanical control test system according to any one of claims 1 to 9.

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