CN102393301A - Flexibility testing system of engine - Google Patents
Flexibility testing system of engine Download PDFInfo
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- CN102393301A CN102393301A CN2011101969894A CN201110196989A CN102393301A CN 102393301 A CN102393301 A CN 102393301A CN 2011101969894 A CN2011101969894 A CN 2011101969894A CN 201110196989 A CN201110196989 A CN 201110196989A CN 102393301 A CN102393301 A CN 102393301A
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Abstract
The invention provides a flexibility testing system of an engine, and the flexibility testing system comprises a data acquisition terminal and a test upper computer connected by a USB (universal serial bus) communication module, wherein the data acquisition terminal is connected with a sensor; the test upper computer adopts VC for development and comprises a data processing module; the input end of the data processing module is connected with the output end of the USB communication module; the data processing module is a data process DLL (dynamic link library) developed by a user under the development environment of a developable dynamic link library; and in the development process, the user can develop the data processing module applicable to new test tasks by only conforming to the specified interface definition rule, and also can rewrite the data processing process in the original data processing DLL. According to the flexible testing system, the development efficiency of the testing system of the engine can be obviously improved and the cost and risk for development can be reduced.
Description
Technical field
The present invention relates to the engine testing system technical field, specifically, is a kind of engine flexible test system.
Background technology
The height of Engine Block Test technical merit is an important symbol weighing a national automobile industry development degree height, and the development of auto industry level be unable to do without the raising of Engine Block Test technology.There is the engine manufacturing enterprise of thousands of families in China, and the engine test platform that enterprise of every family also has quantity not wait is added each about scientific research institutions and institution of higher learning, estimates that national test platform has up to ten thousand.But these test-beds overwhelming majority is traditional test macro, needs the various operating modes of manual adjustment, range estimation reading, hand-written recording status, and these test modes and method can not be satisfied with the basic demand of modern test.Therefore; Under the background that Computer Control Technology develops rapidly at present; Can rely on advanced testing apparatus; The means of testing of uses advanced and method replace original engine bench test system with the high computer testing system of automaticity of the complete quick exploitation of a cover, become one of technical matters that these those skilled in the art need to be resolved hurrily to improve development efficiency and cost effectiveness.
Whether engine design is qualified, and whether work is stable, and whether each item duty is normal, all needs test macro to carry out test analysis, so working stability is reliable, test is accurate, and the test macro of flexible operation is particularly important for the relevant information of understanding engine.Engine has numerous parameters to need to gather in test process, and wherein major parameter comprises engine speed, torque, board vibration; Oil temperature, oil consumption, tail gas etc.; To different test parameters its instrumentation is arranged all, measure torque rotary speed and adopt torque rotational speed meter, measuring all temps parameter has all temps Acquisition Instrument; Measuring vibrations adopts vibroscope, measures oil consumption and adopts fuel consumption meter, detects tail gas and adopts smokemetor etc.The development approach of conventional engines test macro is after understanding test assignment, to select relevant testing tool, and different being provided with requires and data transmission requirement development and testing application program according to each testing tool.
Fig. 1 shows a kind of development scheme of engine testing system commonly used; Its legacy test system 10 to engine performance measuring mainly contains three parts and forms: testing tool 11; Communication bus 12, PC 13 wherein has the sensor to signal specific on the testing tool 11.The principle of work of system is that testing tool 11 is according to the information acquisition signal is set; Then signal is carried out processing such as filtering and noise reduction; The signal of handling well sends to PC 13 through communication bus 12 according to set agreement; Operations such as PC 13 is stored after receiving data, shown, warning, as shown in Figure 2.After the data that temperature sensor 111 in the process testing tool 11 obtains are handled through specialized equipment 112; Utilize RS232 bus 121 to be sent to computing machine 13; Similarly; The data that process vibration transducer 113 obtains utilize Ethernet 122 to be sent to computing machine 13 after also handling through specialized equipment 114.
From the above, legacy test system needs different process instrumentations to different sensor, and so not only the development efficiency of test macro is lower, and cost and risk is also higher.
Summary of the invention
The purpose of this fermentation is to overcome the deficiency of prior art, and a kind of engine flexible test system is provided, and it can improve the development efficiency of engine testing system, reduces the cost and risk of engine testing system.
The objective of the invention is to realize through following technical scheme:
A kind of engine flexible test system comprises the data collection station and test host computer that connect through the usb bus communication module, and data collection station is connected with sensor,
Said data collection station is based on the data collection station of FPGA, comprises A/D modular converter that is connected with sensor and the data acquisition module that is connected with the usb bus communication module, also comprises the adjustable output port of power source of voltage and form;
Said usb bus communication module is responsible for the high speed data transfer between test host computer and the data collection station;
Said test host computer adopts the VC exploitation, comprises:
Data collection station is provided with module, and output terminal is connected with the input end of data collection station, and the data acquisition terminal is provided with;
Data processing module; Input end is connected through acquisition channel with the output terminal of usb bus communication module; This data processing module is the data processing DLL that the user develops under the development environment that can develop dynamic link library; As long as the user follows the interface definition rule that has provided and just can develop the data processing module that is applicable to new test assignment in the process of exploitation, the user also can test the required data with existing of writing again according to reality and handle the data handling procedure in the DLL;
The acquisition channel coupling is provided with module, and output terminal is connected with the input end of data processing module, is used to set the data of being come by acquisition channel and via which data processing module handles;
The data allocations module, output terminal is connected with the input end of data processing module, be used to stipulate from the data of data processing module next step processing procedure with distribute whereabouts;
Display interface User Defined module, output terminal is connected with the display interface of test host computer, and abundant User Defined function is provided.
In a kind of variation embodiment, said data collection station based on FPGA can have universal sensor interface, and this universal sensor interface can be connected with the sensor of different size.
In a kind of variation embodiment, the output port of power source that said voltage and form are adjustable can have voltage output adjusting knob, can export the magnitude of voltage in the six tunnel positive and negative 15V, with 0.5V then as a shelves level.
In a kind of variation embodiment; Said A/D modular converter can be based on the analog-to-digital conversion module of ADC08D1000; This ADC08D1000 main channel is made up of input multiway analog switch, sampling hold circuit, 8 ADC and 1:2 separation vessel/latch, has the identical passage of two-way.Steering logic is configured by common mode or extended mode, and entire chip is controlled.
In a kind of variation embodiment, said usb bus communication module 22 can be based on the communication module of PDIUSBD12, and it accomplishes relevant communication work according to from the control signal based on the data collection station of FPGA.
In a kind of variation embodiment; Said data collection station based on FPGA can be based on the data acquisition module of AGL600 chip development of the IGLOO series of Actel; The AGL600 chip is through the analog to digital conversion work of control pin control A/D chip ADC08D1000; The data that to be gathered into by this high-speed a/d chip send to usb communication chip PDIUSBD12 with the form of packet, simultaneously through to usb communication chip sending controling instruction, and the communication of control and test host computer.
In a kind of variation embodiment, the processing procedure of next step of said data from data processing module is handled with distributing whereabouts to comprise data are sent at least one in display module, memory module and the alarm module.
In a kind of variation embodiment, the User Defined function that said display interface User Defined module can provide comprises whether whether instant playback of data, data preserve, at least a in being provided with of the attribute of the control type of data storage frequency, display interface, each control.
Compared with prior art, good effect of the present invention is:
(1) data processing module is employed in the data processing DLL of exploitation under the development environment that can develop dynamic link library; Making based on the data processing module storehouse of virtual instrument theory exploitation to support the user to be directed against different measurement parameters according to the new data processing module of interface rules exploitation that provides; Or the data handling procedure of modification available data processing module; Compared with prior art, obviously improve the development efficiency of engine testing system, reduced cost of developing and risk.
(2), the testing software framework of developing based on VC; Abundant User Defined function is provided; Data allocations module and user interface custom feature can make the user need not to grasp under the situation of software development language, parameter are set to new test assignment exploitation engine testing system through different.
(3), data collection station has universal sensor interface; Adopt the hardware designs of Unified Form, after changing test assignment, data collection station can be reused in new test assignment; Compared with prior art, obviously improved the reuse efficiency of hardware components.
Below in conjunction with accompanying drawing enforcement of the present invention and advantage are done further to explain.
Description of drawings
Fig. 1 is the real system composition diagram of conventional engines test macro.
Fig. 2 is the layer of structure synoptic diagram of conventional engines test macro.
Fig. 3 is the layer of structure synoptic diagram according to a kind of engine flexible test of the present invention system.
The hardware configuration synoptic diagram of the data collection station of engine flexible test system among Fig. 4 Fig. 3.
Embodiment
The explanation of relevant embodiments of the invention is with reference to additional graphic, is used for the specific embodiment that illustration the present invention can implement.In following examples, in different figure, same section is to represent with same numeral.
According to a kind of engine flexible test of the present invention system 20, shown in accompanying drawing 3, comprise the data collection station 21 and test host computer 23 that connect through usb bus communication module 22, data collection station 21 is connected with sensor.Data collection station 21 is based on the data collection station of FPGA, comprises A/D modular converter that is connected with sensor and the data acquisition module that is connected with usb bus communication module 22, also comprises the adjustable output port of power source of voltage and form.Usb bus communication module 22 is responsible for the high speed data transfer between test host computer 23 and the data collection station 21.Test host computer 23 adopts the VC exploitation, and comprise: data collection station is provided with module 231, and output terminal is connected with the input end of data collection station, and data acquisition terminal 21 is provided with; Data processing module 232; Input end is connected through acquisition channel with the output terminal of usb bus communication module 22; This data processing module 232 is data processing DLL that the user develops under the development environment that can develop dynamic link library; As long as the user follows the interface definition rule that has provided and just can develop the data processing module 232 that is applicable to new test assignment in the process of exploitation, the user also can test the required data with existing of writing again according to reality and handle the data handling procedure in the DLL; The acquisition channel coupling is provided with module 233, and output terminal is connected with the input end of data processing module 232, is used to set the data of being come by acquisition channel and via which data processing module handles; Data allocations module 234, output terminal is connected with the input end of data processing module 232, be used to stipulate from the data of data processing module 232 next step processing procedure with distribute whereabouts; Display interface User Defined module 235, output terminal is connected with the display interface of test host computer 23, and abundant User Defined function is provided.
In a kind of variation embodiment of the present invention, said data collection station 21 based on FPGA can have universal sensor interface, and this universal sensor interface can be connected with the sensor of different size.The flexible setting of data collection station; Flexibly connecting and the definition of the flexibility of data processing module of sensor; Based on the flexible use that has substituted the actual physics instrument of the data acquisition of virtual instrument theory; Compared with prior art, obviously improve the development efficiency of engine testing system, reduced cost of developing and risk.In a kind of variation embodiment; Said data allocations module 234 is to supply the user to carry out self-defining part; Through data allocations module 234, the user can stipulate which subsequent treatment module next step should send to through data processing module 232, comprises the control in the display module; Memory module, alarm module etc.
In changing embodiment, data processing module 232 can adopt VC, Labview exploitation.Replace actual instrumentation to improve the dirigibility and the extensibility of program with data processing module 232; When test assignment changes; The user only need get final product to the information that test assignment is reset in the User Defined module; The efficient that this has promoted the development and testing system significantly meets the theory of flexible test; On the other hand, the alternative actual instrumentation of data processing module has significantly reduced the risk and cost to test assignment development and testing system.
In a kind of variation embodiment, the user can be provided with the acquisition parameter that module 231 is stipulated each passage through data collection station, mainly comprises frequency acquisition, data packet length, circle collection/triggering collection type.In a kind of variation embodiment, the User Defined function that said display interface User Defined module 235 can provide comprises whether whether instant playback of data, data preserve, at least a in being provided with of the attribute of the control type of data storage frequency, display interface, each control.
In a kind of variation embodiment of the present invention, with reference to figure 4, the output port of power source that said voltage and form are adjustable can have voltage output adjusting knob 211, and it can export the magnitude of voltage in the six tunnel positive and negative 15V, with 0.5V then as a shelves level.In a kind of variation embodiment; Said high-speed a/d modular converter can be based on the analog-to-digital conversion module of ADC08D1000; This ADC08D1000 main channel is made up of input multiway analog switch, sampling hold circuit, 8 ADC and 1:2 separation vessel/latch, has the identical passage of two-way.Steering logic is configured by common mode or extended mode, and entire chip is controlled.In a kind of variation embodiment, said usb bus communication module 22 can be based on the communication module of PDIUSBD12, and it accomplishes relevant communication work according to from the control signal based on the data collection station 21 of FPGA.In a kind of variation embodiment; Said data collection station based on FPGA can be based on the data acquisition module of AGL600 chip development of the IGLOO series of Actel; The AGL600 chip is through the analog to digital conversion work of control pin control A/D chip ADC08D1000; The data that to be gathered into by this high-speed a/d chip send to usb communication chip PDIUSBD12 with the form of packet, simultaneously through to usb communication chip sending controling instruction, and the communication of control and test host computer.Chip AGL600 can produce for Actel company; It carries out the definition of processing logic, the definition of pin function with the Verilog language as development language; After program compilation is accomplished; Download line through the parallel port and be burnt among the AGL600,, realize the data collection task of data collection station as main control chip control high-speed a/d chip ADC08D1000 and usb communication chip PDIUSBD12.
The host computer test procedure of engine flexible test of the present invention system has embedded interchangeable data processing module.Data acquisition module adopts the IGLOO AGL600 chip of Actel as main control chip, and the task of completion mainly comprises: receive host computer information is set, the data acquisition module is carried out relative set, and like frequency acquisition, trigger mode etc.; Accept host computer and read signal, send image data; From the FIFO reading of data; Form the high speed acquisition module jointly with ADC08D1000 chip at a high speed; The setting of FIFO is the problem that has solved the data acquisition precision as the high speed of buffer memory solution acquisition module, meets the actual conditions of high engine speeds operation; USB chip PDIUSBD12 is in the data communication that realizes under the control of FPGA main control chip between host computer application program and the data acquisition module.The host computer test procedure is mainly write completion by three parts, based on the software frame of VC, and based on the data processing module DLL of exploitations such as VC, Labview, can be by the custom data distribution module.
The present invention is directed to the limitation of Traditional engine test macro, the theory of flexible test is incorporated in the exploitation of engine testing system.Engine flexible test system is made up of three parts: the data collection station of unity of form, usb communication bus, upper computer software.The main theory that has embodied flexible test at three places: (one), sensor and based on the flexibility coupling of the data collection station of FPGA; Reserve voltage and the adjustable output port of power source of form based on the data collection station of FPGA, thereby can flexiblely mate most sensors; (2), at data processing section, the user can be according to flexible exploitation of the definition of interface rules and growth data processing module storehouse, thus the test macro that responds to different test assignment exploitations; (3), use VC to make the user have sufficient custom feature as the host computer test macro of development environment exploitation; The user can carry out self-defined to the subsequent treatment of data, comprises whether instant playback of data, and whether data preserve; The data storage frequency; The control type of display interface, the attribute of each control are provided with etc., realize the purpose of flexible setting.In the face of new test assignment the time, the user only needs more emat sensor, and the data processing module call type is set, and the information of change User Defined part can be accomplished the exploitation of new test macro, realizes the purpose of quick development and testing system.
Data collection station of the present invention is responsible for according to the information acquisition data are set; Through usb bus data are sent to host computer then; The host computer application program is built by each software module to Engine Block Test that has woven and is formed; Data are shown by the data allocations module behind data processing module again, storage, operations such as warning, control.This engine flexible test system has satisfied the requirement of modern test assignment; Improved the efficient of development and testing system; Reduced cost of developing and risk, the introducing of flexible test theory has solved test assignment and has constantly changed the challenge that legacy test system is proposed.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from basic technical scheme of the present invention; Can also make some improvement and change, these improvement and change also should be contained in protection scope of the present invention.
Claims (8)
1. an engine flexible test system comprises the data collection station and test host computer that connect through the usb bus communication module, and data collection station is connected with sensor, it is characterized in that,
Said data collection station is based on the data collection station of FPGA, comprises A/D modular converter that is connected with sensor and the data acquisition module that is connected with the usb bus communication module, also comprises the adjustable output port of power source of voltage and form;
Said usb bus communication module is responsible for the high speed data transfer between test host computer and the data collection station;
Said test host computer adopts the VC exploitation, comprises:
Data collection station is provided with module, and output terminal is connected with the input end of data collection station, and the data acquisition terminal is provided with;
Data processing module; Input end is connected through acquisition channel with the output terminal of usb bus communication module; This data processing module is the data processing DLL that the user develops under the development environment that can develop dynamic link library; As long as the user follows the interface definition rule that has provided and just can develop the data processing module that is applicable to new test assignment in the process of exploitation, the user also can test the required data with existing of writing again according to reality and handle the data handling procedure in the DLL;
The acquisition channel coupling is provided with module, and output terminal is connected with the input end of data processing module, is used to set the data of being come by acquisition channel and via which data processing module handles;
The data allocations module, output terminal is connected with the input end of data processing module, be used to stipulate from the data of data processing module next step processing procedure with distribute whereabouts;
Display interface User Defined module, output terminal is connected with the display interface of test host computer, and abundant User Defined function is provided.
2. engine flexible test according to claim 1 system is characterized in that said data collection station based on FPGA has universal sensor interface, and this universal sensor interface can be connected with the sensor of different size;
Engine flexible test according to claim 1 system is characterized in that, the output port of power source that said voltage and form are adjustable has voltage output adjusting knob, can export the magnitude of voltage in the six tunnel positive and negative 15V, with 0.5V then as a shelves level.
3. engine flexible test according to claim 1 system; It is characterized in that; Said A/D modular converter is based on the analog-to-digital conversion module of ADC08D1000; This ADC08D1000 main channel is made up of input multiway analog switch, sampling hold circuit, 8 ADC and 1:2 separation vessel/latch, has the identical passage of two-way.
4. engine flexible test according to claim 1 system is characterized in that steering logic is configured by common mode or extended mode, and entire chip is controlled.
5. engine flexible test according to claim 4 system; It is characterized in that; Said usb bus communication module can be based on the communication module of PDIUSBD12, and it accomplishes relevant communication work according to from the control signal based on the data collection station of FPGA.
6. engine flexible test according to claim 5 system; It is characterized in that; Said data collection station based on FPGA is based on the data acquisition module of AGL600 chip development of the IGLOO series of Actel; The AGL600 chip is through the analog to digital conversion work of control pin control A/D chip ADC08D1000; The data that to be gathered into by this high-speed a/d chip send to usb communication chip PDIUSBD12 with the form of packet, simultaneously through to usb communication chip sending controling instruction, and the communication of control and test host computer.
7. engine flexible test according to claim 1 system; It is characterized in that the processing procedure of next step of said data from data processing module is handled with distributing whereabouts to comprise data are sent at least one in display module, memory module and the alarm module.
8. engine flexible test according to claim 1 system; It is characterized in that the User Defined function that said display interface User Defined module provides comprises whether whether instant playback of data, data preserve, at least a in being provided with of the attribute of the control type of data storage frequency, display interface, each control.
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| CN108302993A (en) * | 2018-01-18 | 2018-07-20 | 重庆大学 | It is under fire and tests system flexibility test automation technology |
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| CN104344862B (en) * | 2014-09-30 | 2018-05-11 | 沪东重机有限公司 | The detection method of FCM10A type fuel consumption meters |
| CN105973612A (en) * | 2016-05-10 | 2016-09-28 | 湖南奔腾动力科技有限公司 | Online transient test system for control and operation parameters of engine |
| CN107168201A (en) * | 2017-05-19 | 2017-09-15 | 昆明理工大学 | A kind of real-time watch device operation management system of threst stand |
| CN107168201B (en) * | 2017-05-19 | 2019-09-27 | 昆明理工大学 | A kind of real-time watch device operation management system of threst stand |
| CN108302993A (en) * | 2018-01-18 | 2018-07-20 | 重庆大学 | It is under fire and tests system flexibility test automation technology |
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