CN117269656A - New energy automobile direct current fills electric pile test system - Google Patents
New energy automobile direct current fills electric pile test system Download PDFInfo
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- CN117269656A CN117269656A CN202311545679.8A CN202311545679A CN117269656A CN 117269656 A CN117269656 A CN 117269656A CN 202311545679 A CN202311545679 A CN 202311545679A CN 117269656 A CN117269656 A CN 117269656A
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- 238000012360 testing method Methods 0.000 title claims abstract description 122
- 238000004088 simulation Methods 0.000 claims abstract description 148
- 230000020169 heat generation Effects 0.000 claims abstract description 56
- 230000004044 response Effects 0.000 claims description 21
- 238000009529 body temperature measurement Methods 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- 238000004514 thermodynamic simulation Methods 0.000 claims description 6
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- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000008859 change Effects 0.000 description 9
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- 238000004891 communication Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 238000001931 thermography Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
Abstract
The invention relates to a new energy automobile direct current charging pile test system, which comprises a thermal field simulation subsystem and a device test subsystem; the configuration of the thermal field simulation subsystem and the device testing subsystem can realize split detection, so that the testing of the shell and the testing of the internal devices are separated, and when some limit condition tests are carried out, the two target devices are tested through the reconstructed simulation shell support, so that the test space is larger, the heat generation influence among the target devices can also be simulated through an environment simulation mode, and in this way, if the limit environment test of the working states of the adjacent target devices is carried out, the limit states of other devices are generated through a simulation mode except the target device to be tested, so that the test can be carried out in a larger simulation space, the damage is reduced, and the test conditions with a larger range are provided.
Description
Technical Field
The invention relates to the technical field of charging pile detection, in particular to a new energy automobile direct current charging pile testing system.
Background
At present, with the popularization of new energy automobiles, the construction of an infrastructure charging facility also faces sufficient challenges, and the requirements on the number, the charging efficiency, the charging quality, the coverage rate and the energy saving property are all higher, but compared with an alternating current new energy charging pile, the direct current new energy charging pile has larger advantages, namely higher efficiency and lower electric energy loss, so that the universality of the direct current new energy charging pile is higher, and because the alternating current electric energy is provided by a power supply party, the direct current charging pile needs to be provided with larger rectifying devices, thus the direct current charging pile can bring about higher requirements on the safety, the quantity is huge, the social loss caused by dangerous situations is larger once, and the combination of circuit devices is novel in the field of public equipment, therefore, the quality test is a key link, and is used as a temperature environment test important in the quality test, the current test mode is used for only simulating the temperature environment and simultaneously testing current output and monitoring heat generation of a unit so as to judge whether the temperature measurement is abnormal, and the temperature measurement is generally carried out through a thermal imager or a built-in temperature monitoring module, so that the temperature measurement cannot be completely and accurately judged, the thermal imager only detects the surface temperature, the penetrability is not high, a large error range exists, the limit condition is firstly achieved in the limit condition test, more time is required, the rejection rate and the damage rate caused by the limit condition are secondly high, and the loss is caused.
Disclosure of Invention
In view of the above, the invention aims to provide a new energy automobile direct current charging pile test system.
In order to solve the technical problems, the technical scheme of the invention is as follows: a new energy automobile direct current fills electric pile test system, including thermal field analog subsystem and device test subsystem;
the thermal field simulation subsystem comprises thermal field simulation equipment, a measuring point planning module and a heat generation simulation module, wherein the thermal field simulation equipment comprises a plurality of inner sensing temperature units, inner sensing heat generation units, outer sensing temperature units and a temperature measurement manipulator, a thermal field simulation cavity is formed in the thermal field simulation equipment and is used for placing a target shell, a simulation device is installed in the target shell, the inner sensing temperature units and the inner sensing heat generation units are installed in the simulation device in advance, the outer sensing temperature units are installed in the temperature measurement manipulator, the measuring point planning module is configured with a measuring point planning strategy, the measuring point planning strategy is used for generating measuring point information corresponding to the target shell, the measuring point information comprises inner sensing point data and outer sensing point data, the inner sensing point data corresponds to the installation position of the inner sensing temperature units, the outer sensing point data is used for corresponding to the movement position of the outer sensing temperature units, and the heat generation simulation module is configured with a heat generation simulation strategy and is used for generating heat generation information according to a test instruction so as to control the corresponding inner sensing temperature units to work;
the device testing subsystem comprises device testing equipment, a simulation comparison module and an environment simulation module, wherein the device testing equipment comprises a plurality of simulated heat generating units and a test feedback interface, a device simulation cavity is formed in the device testing equipment and is used for placing a simulation shell support, a target device is installed in the simulation shell support, the simulated heat generating units are installed in the simulation shell support, the test feedback interface is coupled with the target device to obtain test operation signals of the target device, the test feedback interface is connected with the simulation comparison module, the simulation comparison module is used for comparing the test operation signals with preset reference operation signals and outputting comparison results, and the environment simulation module is provided with an environment simulation strategy which is used for generating environment simulation information according to test instructions to control the corresponding simulated heat generating units to work.
Further, the thermal field simulation subsystem comprises a thermal field feedback module, wherein the thermal field feedback module is used for acquiring temperature information fed back by the internal sensing temperature measuring unit and the external sensing temperature measuring unit;
the device testing subsystem comprises an equivalent conversion module, wherein the equivalent conversion module generates equivalent temperature control information of the target device according to the temperature information acquired by the thermal field feedback module, and the environment simulation strategy generates an independent temperature control value of each simulated heat generating unit according to the equivalent temperature control information and controls the simulated heat generating units to work according to the independent temperature control values.
Further, the station planning strategy comprises that,
a1, acquiring parameter information of a target shell;
a2, modeling through simulation software according to the parameter information of the target shell so as to generate a target shell model;
a3, carrying out thermodynamic simulation on the target shell through a thermodynamic simulation algorithm to obtain a corresponding thermal response distribution model;
step A4, extracting thermal response characteristics in the thermal response distribution model;
step A5, bringing the thermal response characteristics into a pre-constructed characteristic mark recognition network to obtain measuring point coordinates of a corresponding target shell;
and A6, collecting measurement point coordinates to generate the measurement point information.
Further, the thermal simulation strategy includes,
step B1, acquiring a test instruction and generating test conditions according to the content of the test instruction;
step B2, bringing the test conditions into a corresponding thermal response distribution model to generate theoretical feedback waveforms of coordinates of each measuring point;
step B3, generating a heat generation output instruction according to the test conditions so as to control the operation of the internal heat generation unit;
and B4, comparing the deviation of the actual feedback waveform and the theoretical feedback waveform of the measuring point to generate deviation information.
Further, the thermal field simulation device further comprises an external induction heat generation unit, wherein the external induction heat generation unit is arranged in the thermal field simulation cavity and used for adjusting the temperature of the thermal field simulation cavity;
and the step B3 further comprises the step of controlling the exogenous heat generating unit to work through a heat generating output instruction.
Further, the thermal field simulation subsystem further comprises a device simulation module, wherein the device simulation module is connected to the 3D printer and used for printing the simulation device; the device simulation module is configured with a device simulation strategy, the device simulation strategy comprising,
step C1, obtaining type information of a target device;
step C2, modeling is carried out through simulation software according to the type information of the target device so as to generate a target device model;
step C3, a measuring point position mark is established in the target device model according to the measuring point information, and meanwhile, a heat generating position mark is carried out in the target device model according to the type of the target device;
step C4, loading the measuring point position marks into a sensing embedded model to form a yielding embedding port in the target device model, and loading the heat generating position marks into a heat generating embedded model to form a yielding embedding port in the target device model;
step C5, forming wiring holes and interface embedded ports in the target device model according to the positions of the abdication embedded ports;
and C6, inputting the edited target device model into a 3D printer for printing.
Further, in the step C5, a positioning embedding port is further formed at the bottom of the target device model; correspondingly, locating points are arranged in the thermal field simulation cavity.
Further, the device testing apparatus includes a heat dissipation adjusting unit for adjusting heat dissipation efficiency in the device simulation cavity.
Further, the environmental simulation strategy comprises,
step D1, generating equivalent heat generation information according to theoretical operation states of other target devices in the test instruction;
step D2, carrying equivalent heat generation information into the target shell model to generate a corresponding thermal equivalent distribution model;
step D3, obtaining a corresponding thermal equivalent value according to coordinates of the simulated heat generating unit in the thermal equivalent distribution model;
and D4, generating the environment simulation information according to the thermal equivalent value.
The technical effects of the invention are mainly as follows: through the configuration of the thermal field simulation subsystem and the device testing subsystem, firstly, split detection can be realized, the testing of the shell and the testing of the internal devices are separated, and when some limit condition tests are carried out, the two target devices are tested through the reconstructed simulation shell support, so that the test space is allowed to be larger, the heat generation influence among the target devices can also be simulated through an environment simulation mode, and in this way, if the limit environment tests of the working states of the adjacent target devices are carried out, the limit states of other devices are generated through a simulation mode except the tested target devices, so that the test can be carried out in a larger simulation space, the damage is reduced, and the test conditions with a larger range are provided.
Drawings
Fig. 1: the invention relates to a system architecture schematic diagram of a new energy automobile direct current charging pile test system;
fig. 2: the invention relates to a thermal field simulation equipment schematic diagram of a new energy automobile direct current charging pile test system;
fig. 3: the invention discloses a device testing equipment schematic diagram of a new energy automobile direct current charging pile testing system.
Reference numerals: 100. a thermal field simulation subsystem; 110. a thermal field simulation device; 111. an internal sensing temperature measuring unit; 112. an internal induction heat generating unit; 113. an exogenous temperature measurement unit; 114. a temperature measuring manipulator; 115. a thermal field simulation chamber; 116. an exogenous heat generating unit; 11. a target housing; 12. a simulation device; 120. a measuring point planning module; 130. a heat generation simulation module; 140. a thermal field feedback module; 150. a device simulation module; 200. a device testing subsystem; 210. a device testing apparatus; 211. mimicry heat generating units; 212. testing a feedback interface; 213. a device simulation cavity; 214. a heat dissipation adjusting unit; 21. a simulated housing support; 22. a target device; 220. a simulation comparison module; 230. an environment simulation module; 240. and an equivalent conversion module.
Detailed Description
The following detailed description of the invention is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the invention.
A new energy automobile direct current fills electric pile test system, including thermal field analog subsystem 100 and device test subsystem 200; firstly, it should be noted that the heat dissipation performance simulation and the element performance detection under the heat generating condition are important test items of the charging pile test system, and the simulation is performed through the whole machine, so that although the influence caused by the variable is avoided to the greatest extent, a certain problem exists, the whole machine simulation is that the installation of the feedback sensor in the whole machine is limited by the space, the corresponding interface can only be the whole machine interface for detecting the feedback output, and the test can detect the output under a certain environment, but if the abnormality occurs, the feedback data is less, and a certain difficulty exists in the judgment of the cause analysis and the risk track. Therefore, the core of the invention is to construct a simulation detection model by respectively constructing a shell and an inside as follows:
first is the content of the thermal field simulation subsystem 100, the thermal field simulation subsystem 100 comprising a thermal field simulation device 110, a site planning module 120 and a heat generation simulation module 130,
referring to fig. 2, the thermal field simulation device 110 includes a plurality of internal sensing temperature measuring units 111, an internal sensing heat generating unit 112, an external sensing temperature measuring unit 113, and a temperature measuring manipulator 114, a thermal field simulation cavity 115 is formed inside the thermal field simulation device 110, the thermal field simulation cavity 115 is used for placing a target housing 11, a simulation device 12 is installed in the target housing 11, if the target housing 11 needs to be detected, the housing can be placed in the thermal field simulation cavity 115 of the thermal field simulation device 110 first, and the corresponding device is the simulation device 12, that is, the device itself has only a heat generating function without an electrical signal processing function, and due to the reduction of the function, the device has more space for installing a temperature sensor, and meanwhile, the temperature measuring manipulator 114 can move the corresponding external sensing temperature measuring unit 113 to a required position according to a required detection point to complete the detection of any position of the target housing 11, so that when a detection instruction is obtained, real-time multi-position temperature detection data can be obtained according to the content of the detection instruction, and thus the heat dissipation effect of the housing can be comprehensively tested.
The inner sensing temperature measuring unit 111 and the inner sensing heat generating unit 112 are pre-installed inside the simulation device 12, the outer sensing temperature measuring unit 113 is installed at the temperature measuring robot 114,
the station planning module 120 is configured with a station planning strategy, where the station planning strategy is used to generate station information corresponding to the target housing 11, the station information includes inner sensing station data and outer sensing station data, the inner sensing station data corresponds to an installation position of the inner sensing temperature measurement unit 111, the outer sensing station data is used to correspond to a movement position of the outer sensing temperature measurement unit 113, and the position of the inner sensing temperature measurement unit 111 that needs to be actually installed can be configured through configuration of the station information, so that the corresponding simulation device 12 is planned in advance, and in addition, a movement track of the outer sensing temperature measurement unit 113 can be planned, so that a control instruction of the corresponding temperature measurement manipulator 114 is generated.
The point-of-measure planning strategy includes,
a1, acquiring parameter information of a target shell 11; this step can directly obtain the manufacturer production model information as parameter information, that is, the three-dimensional model of the target housing 11 can be reconstructed from the parameter information.
A2, modeling through simulation software according to parameter information of the target shell 11 to generate a target shell 11 model;
a3, carrying out thermodynamic simulation on the target shell 11 through a thermodynamic simulation algorithm to obtain a corresponding thermal response distribution model; by inputting the thermal conductivity values corresponding to the materials of the different regions of the target housing 11, the temperature change condition of each part in the thermal environment can be generated, and the thermal response distribution model reflects this condition.
Step A4, extracting thermal response characteristics in the thermal response distribution model; the thermal response characteristic is realized only by combining the shape and the temperature change rate, for example, the temperature change speed of a protruding part of a certain shape is very high, and the position is marked as a corresponding thermal response characteristic area according to a certain thermal response characteristic in a preset database.
Step A5, bringing the thermal response characteristics into a pre-constructed characteristic mark recognition network to obtain measuring point coordinates corresponding to the target shell 11; after obtaining a plurality of different thermal response characteristic areas, a plurality of points which can reflect the temperature change condition most can be determined through the characteristic mark recognition network, and the points are measuring point coordinates.
And A6, collecting measurement point coordinates to generate the measurement point information.
The heat generation simulation module 130 is configured with a heat generation simulation strategy for generating heat generation information according to the test instruction to control the operation of the corresponding heat generation unit 112; the purpose of the heat generation simulation strategy is to perform simulation of heat generation information by which the operation of the corresponding heat generation unit 112 is controlled to form heat release at the corresponding location. The heat generation unit 112 may be specifically configured as an electric heating wire or an electric heating plate, and generates heat at a predetermined position, and the amount of generated heat needs to be controlled by a strategy.
The thermal field simulation device 110 further comprises an external heat generation unit 116, wherein the external heat generation unit 116 is disposed in the thermal field simulation chamber 115 and is used for adjusting the temperature of the thermal field simulation chamber 115; the external heat generating unit 116 may be an electric heating wire or an electric heating plate arranged in the device, and a fan may be added to control the ambient temperature if the ambient heat exchange rate needs to be controlled.
The heat generation simulation strategy includes,
step B1, acquiring a test instruction and generating test conditions according to the content of the test instruction; the test instructions include the purpose of testing, for example, the temperature of the entire chamber interior of the test housing under certain conditions, and the target device 22 under certain operating conditions, and convert the above information into ambient temperature, ambient heat exchange rate, and heat generation amount of the target device 22 using the above information as test conditions.
Step B2, bringing the test conditions into a corresponding thermal response distribution model to generate theoretical feedback waveforms of coordinates of each measuring point; and the temperature change condition of the shell can be obtained theoretically by substituting the test conditions into the corresponding thermal response distribution model.
Step B3, generating a heat generation output instruction according to the test conditions to control the operation of the heat generation unit 112; the step B3 further includes controlling the external heat generating unit 116 to operate according to the heat generating output command. Such as controlling the output power of the external inductive heating unit 116 and the output power of the internal inductive heating unit 112.
And B4, comparing the deviation of the actual feedback waveform and the theoretical feedback waveform of the measuring point to generate deviation information. This deviation information can be used as a test result.
The thermal field simulation subsystem 100 further includes a device simulation module 150, the device simulation module 150 being connected to a 3D printer for printing the simulation device 12; the device simulation module 150 is configured with device simulation policies, including,
step C1, obtaining type information of the target device 22; the method is mainly used for obtaining the size information of the device through the outgoing information of the factory building.
Step C2, modeling through simulation software according to the type information of the target device 22 to generate a target device 22 model; the target device 22 model is the same as the target housing 11 model, and reflects the three-dimensional state of the target object.
Step C3, a measuring point position mark is established in the target device 22 model according to the measuring point information, and meanwhile, a heat generating position mark is carried out in the target device 22 model according to the type of the target device 22; and acquiring the positions of the corresponding measuring points and the positions of the heat generating points.
Step C4, loading a sensing embedded model at the measuring point position mark to form a yielding embedding port in the target device 22 model, and loading a heat generating embedded model at the heat generating position mark to form a yielding embedding port in the target device 22 model; the method is characterized in that the method comprises the steps of editing an original model again, for example, the position of a measuring point is known, a sensing embedded model is a preset three-dimensional image and is also a known variable, a yielding embedding port can be obtained by taking a difference set of the two three-dimensional images, and similarly, the yielding embedding port corresponding to the heat generating embedded model can also be generated.
Step C5, wiring holes and interface embedding ports are formed in the target device 22 model according to the positions of the abdication embedding ports; in the step C5, a positioning embedding port is further formed at the bottom of the target device 22 model; correspondingly, positioning points are arranged in the thermal field simulation cavity 115. This purpose is to install an interface and realize signal transmission, because the target device 22 is actually an interface without a sensor, and the model only mimics the heat generation of the target device 22, and does not mimic the signal transmission function of the target device 22, and the space for directly adding the sensor is obviously unreasonable, so that the communication harness and the communication interface can be respectively installed through the wiring hole and the interface embedding hole.
And step C6, inputting the edited target device 22 model into a 3D printer for printing. The thermal conductivity of the printed material is preferably consistent with the target device 22. The dummy device 12 that can be repeatedly tested is fabricated by 3D printing techniques.
The device testing subsystem 200 includes a device testing apparatus 210, an analog comparison module, and an environment simulation module 230, where the device testing apparatus 210 includes a plurality of pseudo-heat generating units 211 and a test feedback interface 212, as shown in fig. 3, a device simulation cavity 213 is formed inside the device testing apparatus 210, the device simulation cavity 213 is used for placing a simulation housing bracket 21, the simulation housing bracket 21 may be implemented by 3D printing, a unified template may also be directly set, a separate cavity is formed inside the bracket, a corresponding target device 22 may be placed inside the cavity and a corresponding interface may be set for obtaining a working signal of the target device 22, the pseudo-heat generating units 211 are installed in the simulation housing bracket 21, the pseudo-heat generating units 211 are coupled with the target device 22 to obtain a test operation signal of the target device 22, the test feedback interface 212 is connected to the analog comparison module, the analog comparison module is used for comparing the test operation signal with a preset reference operation signal and outputting a comparison result, and the simulated environment strategy can be configured by judging that the output of the comparison result is used for generating the abnormal environment simulation strategy corresponding to the simulated heat generating the environment state simulation unit 230. The mimicry heat generating unit 211 is used for simulating the temperature conditions of other devices or environments, if the operating states of the other devices are simulated, the influence of the other devices on the target device 22 can be realized by heating the mimicry heat generating unit 211 preset on the partition board of the bracket, the mimicry heat generating unit 211 is not required to be realized by operating the other devices, the target devices 22 can operate independently, and the test loss is reduced.
The thermal field simulation subsystem 100 includes a thermal field feedback module 140, where the thermal field feedback module 140 is configured to obtain temperature information fed back by the internal sensing temperature measurement unit 111 and the external sensing temperature measurement unit 113; the device testing subsystem 200 includes an equivalent conversion module 240, the equivalent conversion module 240 generates equivalent temperature control information of the target device 22 according to the temperature information obtained by the thermal field feedback module 140, and the environment simulation strategy generates an independent temperature control value of each mimicry heat generating unit 211 according to the equivalent temperature control information, and controls the mimicry heat generating units 211 to work according to the independent temperature control values. The device testing apparatus 210 includes a heat dissipation adjustment unit 214 for adjusting heat dissipation efficiency within the device simulation chamber 213. The purpose of the equivalent conversion module 240 is to calculate the theoretical heat generation relationship, so as to obtain the variation of the heat radiation of the shell section at the position in a certain running state, and thus simulate the temperature according to the variation, and improve the heat generation efficiency.
The environmental simulation strategy may include,
step D1, generating equivalent heat generation information according to theoretical operation states of other target devices 22 in the test instruction;
step D2, carrying equivalent heat generation information into the target shell 11 model to generate a corresponding heat equivalent distribution model; i.e. the corresponding heat variation in the housing is taken.
Step D3, obtaining a corresponding thermal equivalent value according to the coordinate of the simulated heat generation unit 211 corresponding to the thermal equivalent distribution model; the thermal equivalent value is a value indicating how much the heat generation amount of the pseudo heat generation unit 211 can be equivalent to the influence of the heat generation amount in the operation state of a certain device on the target device 22.
And D4, generating the environment simulation information according to the thermal equivalent value.
The invention has the following examples:
in embodiment 1, the heat dissipation performance item of the shell is tested, firstly, the shell of the object is obtained, then the corresponding simulation device 12 is manufactured according to the object device 22, the internal heat generating unit 112 and the internal heat sensing unit 111 are installed on the simulation device 12, then the circuit is installed, the circuit is put into the object shell 11, the object shell 11 is put into the thermal field simulation cavity 115, the manipulator is controlled to act to realize single-point temperature detection, and the heat dissipation performance of the shell is tested through the internal heat sensing unit and the external heat sensing unit.
In embodiment 2, the heat dissipation performance deviation item of the shell is tested, corresponding temperature changes are simulated in the same scene through the thermal imaging camera, and then the temperature changes are compared with those in embodiment 1, so that the heat dissipation metering deviation of the shell under the thermal imaging camera is calculated, and thus the heat dissipation metering deviation can be used for correcting the monitoring result if monitored by thermal imaging in fruit-like manner.
In example 3, a single target device 22 signal test item, the target device 22 is placed in a corresponding position of the simulated bracket shell, the target device 22 completes communication through the bracket and the equipment, and the target device 22 is controlled to work to test the deviation of the feedback signal, so that the test is performed.
In example 4, a single target device 22 generates heat to test the device by placing the target device 22 in a corresponding position of the simulated support housing, the target device 22 is in communication with the device via the support, the target device 22 is controlled to operate, and the operating temperature is obtained via thermal imaging techniques, thereby performing the test.
Example 5 single target device 22 test item in which multiple target devices 22 are operated in tandem, the temperature change of the target device 22 and the change of the operation signal output are tested by calculating the equivalent heat generation of the operation of the other target devices 22 and performing the heat generation by the pseudo heat generation unit 211.
In embodiment 6, a single device test item of a complete machine cooperative operation item, under a target condition, the operation heat generating bands of all devices are input into the corresponding shell test subsystem to obtain the heat change of the shell, and then the simulation is performed through the mimicry heat generating unit 211 according to the heat change condition, so that the heat generating condition of the single device can be obtained.
Of course, the above is only a typical example of the invention, and other embodiments of the invention are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the invention claimed.
Claims (9)
1. A new energy automobile direct current fills electric pile test system, its characterized in that: the device comprises a thermal field simulation subsystem and a device testing subsystem;
the thermal field simulation subsystem comprises thermal field simulation equipment, a measuring point planning module and a heat generation simulation module, wherein the thermal field simulation equipment comprises a plurality of inner sensing temperature units, inner sensing heat generation units, outer sensing temperature units and a temperature measurement manipulator, a thermal field simulation cavity is formed in the thermal field simulation equipment and is used for placing a target shell, a simulation device is installed in the target shell, the inner sensing temperature units and the inner sensing heat generation units are installed in the simulation device in advance, the outer sensing temperature units are installed in the temperature measurement manipulator, the measuring point planning module is configured with a measuring point planning strategy, the measuring point planning strategy is used for generating measuring point information corresponding to the target shell, the measuring point information comprises inner sensing point data and outer sensing point data, the inner sensing point data corresponds to the installation position of the inner sensing temperature units, the outer sensing point data is used for corresponding to the movement position of the outer sensing temperature units, and the heat generation simulation module is configured with a heat generation simulation strategy and is used for generating heat generation information according to a test instruction so as to control the corresponding inner sensing temperature units to work;
the device testing subsystem comprises device testing equipment, a simulation comparison module and an environment simulation module, wherein the device testing equipment comprises a plurality of simulated heat generating units and a test feedback interface, a device simulation cavity is formed in the device testing equipment and is used for placing a simulation shell support, a target device is installed in the simulation shell support, the simulated heat generating units are installed in the simulation shell support, the test feedback interface is coupled with the target device to obtain test operation signals of the target device, the test feedback interface is connected with the simulation comparison module, the simulation comparison module is used for comparing the test operation signals with preset reference operation signals and outputting comparison results, and the environment simulation module is provided with an environment simulation strategy which is used for generating environment simulation information according to test instructions to control the corresponding simulated heat generating units to work.
2. The new energy automobile direct current fills electric pile test system of claim 1, wherein: the thermal field simulation subsystem comprises a thermal field feedback module, wherein the thermal field feedback module is used for acquiring temperature information fed back by the internal sensing temperature measuring unit and the external sensing temperature measuring unit;
the device testing subsystem comprises an equivalent conversion module, wherein the equivalent conversion module generates equivalent temperature control information of the target device according to the temperature information acquired by the thermal field feedback module, and the environment simulation strategy generates an independent temperature control value of each simulated heat generating unit according to the equivalent temperature control information and controls the simulated heat generating units to work according to the independent temperature control values.
3. The new energy automobile direct current fills electric pile test system of claim 1, wherein: the point-of-measure planning strategy includes,
a1, acquiring parameter information of a target shell;
a2, modeling through simulation software according to the parameter information of the target shell so as to generate a target shell model;
a3, carrying out thermodynamic simulation on the target shell through a thermodynamic simulation algorithm to obtain a corresponding thermal response distribution model;
step A4, extracting thermal response characteristics in the thermal response distribution model;
step A5, bringing the thermal response characteristics into a pre-constructed characteristic mark recognition network to obtain measuring point coordinates of a corresponding target shell;
and A6, collecting measurement point coordinates to generate the measurement point information.
4. The new energy automobile direct current fills electric pile test system of claim 1, wherein: the heat generation simulation strategy includes,
step B1, acquiring a test instruction and generating test conditions according to the content of the test instruction;
step B2, bringing the test conditions into a corresponding thermal response distribution model to generate theoretical feedback waveforms of coordinates of each measuring point;
step B3, generating a heat generation output instruction according to the test conditions so as to control the operation of the internal heat generation unit;
and B4, comparing the deviation of the actual feedback waveform and the theoretical feedback waveform of the measuring point to generate deviation information.
5. The new energy automobile direct current fills electric pile test system as defined in claim 4, wherein: the thermal field simulation device further comprises an external heat generation unit, wherein the external heat generation unit is arranged in the thermal field simulation cavity and used for adjusting the temperature of the thermal field simulation cavity;
and the step B3 further comprises the step of controlling the exogenous heat generating unit to work through a heat generating output instruction.
6. The new energy automobile direct current fills electric pile test system of claim 1, wherein: the thermal field simulation subsystem further comprises a device simulation module, wherein the device simulation module is connected with the 3D printer and used for printing the simulation device; the device simulation module is configured with a device simulation strategy, the device simulation strategy comprising,
step C1, obtaining type information of a target device;
step C2, modeling is carried out through simulation software according to the type information of the target device so as to generate a target device model;
step C3, a measuring point position mark is established in the target device model according to the measuring point information, and meanwhile, a heat generating position mark is carried out in the target device model according to the type of the target device;
step C4, loading the measuring point position marks into a sensing embedded model to form a yielding embedding port in the target device model, and loading the heat generating position marks into a heat generating embedded model to form a yielding embedding port in the target device model;
step C5, forming wiring holes and interface embedded ports in the target device model according to the positions of the abdication embedded ports;
and C6, inputting the edited target device model into a 3D printer for printing.
7. The new energy automobile direct current fills electric pile test system as defined in claim 6, wherein: in the step C5, a positioning embedding port is formed at the bottom of the target device model; correspondingly, locating points are arranged in the thermal field simulation cavity.
8. The new energy automobile direct current fills electric pile test system of claim 1, wherein: the device testing equipment comprises a heat dissipation adjusting unit, wherein the heat dissipation adjusting unit is used for adjusting heat dissipation efficiency in the device simulation cavity.
9. The new energy automobile direct current fills electric pile test system as set forth in claim 3, wherein: the environmental simulation strategy may include,
step D1, generating equivalent heat generation information according to theoretical operation states of other target devices in the test instruction;
step D2, carrying equivalent heat generation information into the target shell model to generate a corresponding thermal equivalent distribution model;
step D3, obtaining a corresponding thermal equivalent value according to coordinates of the simulated heat generating unit in the thermal equivalent distribution model;
and D4, generating the environment simulation information according to the thermal equivalent value.
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