CN213581846U - Vehicle electric control element test system - Google Patents
Vehicle electric control element test system Download PDFInfo
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- CN213581846U CN213581846U CN202023107492.4U CN202023107492U CN213581846U CN 213581846 U CN213581846 U CN 213581846U CN 202023107492 U CN202023107492 U CN 202023107492U CN 213581846 U CN213581846 U CN 213581846U
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- 238000012360 testing method Methods 0.000 title claims abstract description 134
- 238000004088 simulation Methods 0.000 claims description 11
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- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000003745 diagnosis Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
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- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model discloses a vehicle electrical control element test system, include: the device comprises a test bench, a switching device, a controller and a test upper computer; the switching device comprises a switching box and a multi-channel signal switching module; the test bench is connected with the test upper computer, the test bench is connected with one end of the adapter box through a bench wiring harness, the other end of the adapter box is connected with the multi-channel signal switching module, the control end of the multi-channel signal switching module is connected with the controller, and the data end of the multi-channel signal switching module is connected with the test upper computer. The embodiment of the utility model provides a vehicle electrical control element test system has the auto-change over device of signal switching function through introducing, has optimized vehicle electrical control element test system's overall structure for test system can realize the switching of signal, has improved test system's application range.
Description
Technical Field
The utility model belongs to the technical field of auto parts's test technique and specifically relates to a vehicle electrical control element test system is related to.
Background
In the development and manufacturing process of vehicles, after the automatic test of the single electronic control element is completed, the single electronic control element needs to be delivered to a whole vehicle factory for simulation test in an electronic and electrical system, and a vehicle electronic control element test system (namely, a Labcar test system) is needed.
The vehicle electric control element testing system is used for simulating all sensors and actuating mechanisms on a vehicle, and detecting the reaction of the whole vehicle electronic and electric system in a normal working environment by performing information interaction with each controller in the system through corresponding models (an engine model, a gearbox model, a vehicle dynamics model, a network model and the like) according to a certain algorithm.
The existing vehicle electric control element test system is structurally characterized in that a rack to be tested is directly connected with a controller through a rack original wire harness piece, the processed signal type is single, switching tests cannot be performed according to different signal types, and the application range is very limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vehicle electrical control element test system to solve the technical problem that current vehicle electrical control element test system can't switch the test to different signal types, through introducing the auto-change over device that has the signal switching function, optimized vehicle electrical control element test system's overall structure, make test system can realize the switching of signal, improved test system's application range.
In order to solve the technical problem, an embodiment of the utility model provides a vehicle electrical control element test system, include: the device comprises a test bench, a switching device, a controller and a test upper computer;
the switching device comprises a switching box and a multi-channel signal switching module;
the test bench is connected with the test upper computer and is connected with one end of the adapter box through a bench wiring harness; the other end of the adapter box is connected with the multi-channel signal switching module, the control end of the multi-channel signal switching module is connected with the controller, and the data end of the multi-channel signal switching module is connected with the test upper computer.
As one of the preferable schemes, at least: the test platform comprises an automobile automatic test platform based on a VT System, an automobile automatic test platform based on a CANoe and an automobile automatic test platform based on a vTESSTudio.
As one preferable scheme, a plurality of data storage libraries are further arranged in the test upper computer;
each data storage library is in communication connection with the corresponding automatic automobile testing platform.
As one of the preferable schemes, the multichannel signal switching module at least includes: the system comprises a bus signal simulation board card, a PWM signal simulation board card and an A/D analog-to-digital conversion board card.
As one preferable scheme, the junction box is a shielding type I/O connection junction box.
Preferably, the connector notch of the controller is connected with the control end of the multi-channel signal switching module through any number of cables.
Compared with the prior art, the beneficial effects of the utility model reside in that, optimized vehicle electrical control element test system's overall structure, set up the auto-change over device that can carry out signal switching between controller and test rack for test system passes through the signal and switches over the signal of different grade type, and then has improved test system's application range.
Drawings
Fig. 1 is a block diagram of a vehicle electrical control element testing system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a test bench according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a testing upper computer in one embodiment of the present invention;
wherein, 1, testing the rack; 2. a switching device; 3. a controller; 4. testing the upper computer; 21. a junction box; 22. and a multi-channel signal switching module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description of the present application, it is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention, and the specific meanings of the terms in the present application will be understood to those skilled in the art in a specific context.
An embodiment of the utility model provides a vehicle electrical control element test system, it is concrete, please see fig. 1, fig. 2 and fig. 3, fig. 1 shows to be the utility model discloses the structural block diagram of vehicle electrical control element test system in one of them embodiment, fig. 2 shows to be the utility model discloses the structural schematic diagram of test bench in one of them embodiment, fig. 3 shows to be the utility model discloses the module schematic diagram of test host computer in one of them embodiment, wherein vehicle electrical control element test system includes: the test bench comprises a test bench 1, a switching device 2, a controller 3 and a test upper computer 4;
the switching device 2 comprises a switching box 21 and a multi-channel signal switching module 22;
the test bench 1 with the test host computer 4 is connected, just the test bench 1 through the bench pencil with the one end of switching box 21 is connected, the other end of switching box 21 with multichannel signal switches the module 22 and connects, multichannel signal switches the control end of module 22 with controller 3 is connected, multichannel signal switches the data end of module 22 and is connected with test host computer 4.
It should be noted that the Labcar test system is a hardware-in-loop HiL module test system applied to an automobile electronic control unit, and achieves the purpose of testing an electronic and electrical system of a finished automobile through an open type and modular structure. The manual test efficiency of the conventional Labcar test bench is low, and a test case needs to be manually operated one by one; the real controller is butted with the wire harness, so that the problem is difficult to find; the test type is single, and the model cannot be simulated by operating the real sample. In order to make the adjustment and function extension of the test system more flexible and meet the requirements of different tests, the inventor conducts a great deal of test research, flexibly changes the signals of the controller and the load characteristics of related execution mechanisms by introducing a switching device, and switches between reality and simulation by combining an upper computer, so that the test system can be tested from different angles based on different signal types, and the application range of the test system is enlarged.
In addition, the test bench 1 comprises a chassis and a vehicle body frame which can slide relative to the chassis, wherein the chassis comprises a plurality of mounting bars which are enclosed to form a closed chassis frame, and the vehicle body frame comprises a connecting column connected with the chassis, an assembling rod connected with the connecting column and the like. Of course, the test bench can be used for designing a separated chassis and a detachable vehicle body frame according to specific test requirements, so that the test bench is suitable for more vehicle measurement.
Further, in the above embodiment, the test upper computer 4 at least has: the test platform comprises an automobile automatic test platform based on a VT System, an automobile automatic test platform based on a CANoe and an automobile automatic test platform based on a vTESSTudio. With the continuous improvement of automobile technology, more and more electronic controllers are applied to automobiles, higher requirements are put on a test System due to the increase of the number of control units and the complex functions, preferably, in the embodiment, the function tests of an automobile ECU and an automobile network System CAN be combined through a VT System, so that the requirement of automatic test is further met, of course, a specific automatic automobile test platform based on the VT System CAN select a processor module, a CAN/LIN module, a load and measurement module, an excitation module, a VT power supply module, an ECU power supply management module, a digital I/O module, an expansion module and the like, a certain module is added or replaced by the actual test requirement, and the VT System CAN also perform data communication with a CANoe of an upper computer through a TCP/IP protocol.
For a CANoe-based automotive automation test platform, it includes three main functions: firstly, the device is used as a diagnostic instrument; secondly, simulating to realize the diagnosis function of the ECU; and thirdly, carrying out automatic test on the diagnosis of the ECU. In order to optimize the corresponding test effect, the components related to the CANoe function preferably include a dynamic library which needs to be used when a user customizes a diagnosis requirement, an operation panel which can help the user to analyze a transport layer protocol, a diagnosis command provided by the CANoe to be sent and received, an operation panel which is arranged in the CANoe and used for reading an ECU fault code, an operation panel which is arranged in the CANoe and used for converting an ECU session, an operation panel which is arranged in the CANoe and used for reading OBD information, a diagnosis plug-in which is arranged in a CAPL programming environment, and the like. In addition, the vTESSTudio-based automobile automatic test platform not only can provide a tabular graphic development interface, but also integrates a demand management interface, a modification management interface and a defect tracking interface, and can facilitate the development and maintenance of test cases by users. For creating and editing test sequences, defining the execution order of the test cases, the test patterns CAN be parameterized graphically using elements in the databases of CAN, LIN and FlexRay (DBC, LDF, FIBEX), and also elements in the diagnostic databases (CDD, ODX), while for linking and modifying test cases in the CAPL library, the test lists are output in the form of test specifications for review.
In addition, in this embodiment, the test bench is connected with the upper computer for communication interaction, on one hand, the test bench is used for receiving different test instructions issued by the upper computer so as to optimize the test effect on the vehicle electronic control element; on the other hand, the corresponding test platform in the upper computer CAN also receive various data generated by the test bench in the test process, for example, CAN bus data sent by the test bench, so that the monitoring of CAN bus signals is realized.
Further, in the above embodiment, a plurality of data storage libraries are further arranged in the test upper computer 4; wherein each data storage library is in communication connection with the corresponding automatic automobile testing platform. The database can store corresponding test information in a classified manner, and theoretical support is provided for later development, comparison, fault research and the like.
In the above embodiment, the real controller is connected to the multi-channel signal switching module through the wiring harness, and the automatic test is performed through the simulation test software, and meanwhile, various output signals of the controller can be monitored. Preferably, the multi-channel signal switching module is integrated with a bus signal simulation board card, a PWM signal simulation board card and an a/D analog-to-digital conversion board card, and is used for transmitting various digital signals, analog signals or bus signals. For example, the VT Syetem/CANoe and various digital signals, analog signals and bus signal simulation boards are integrated in the test System, switching can be performed between a real wire harness and the VT System through the multi-channel signal switching module, and after the VT System is switched, any PIN foot of the controller can be simulated and displayed through the VT System, so that the application range of the test System is greatly enlarged.
Preferably, in one embodiment, the patch panel 21 is a shielded I/O patch panel. The shielding type I/O wiring adapter box can play a better protection role on signals, so that the accuracy of signal transmission is improved.
Preferably, in one embodiment, the connector slots of the controller 3 are connected to the control terminals of the multi-channel signal switching module 22 by any number of cables. For example, a corresponding adapter box is defined and manufactured through a PIN of the controller, the adapter box is connected with the multichannel signal switching module through a cable, and due to the fact that a related data board card is arranged in the multichannel signal switching module, each input/output PIN in the adapter box of the controller CAN be switched through a CAN bus signal simulation board card in the multichannel signal switching module, and therefore switching of real and virtual testing environments is achieved.
The embodiment of the utility model provides a vehicle electrical control element test system, beneficial effect lies in, has optimized vehicle electrical control element test system's overall structure, sets up the auto-change over device that can carry out the signal switching between controller and test rack for test system passes through the signal and switches the signal of different grade type, and then has improved test system's application range.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (6)
1. A vehicle electrical control element testing system, comprising: the device comprises a test bench, a switching device, a controller and a test upper computer;
the switching device comprises a switching box and a multi-channel signal switching module;
the test bench is connected with the test upper computer and is connected with one end of the adapter box through a bench wiring harness; the other end of the adapter box is connected with the multi-channel signal switching module, the control end of the multi-channel signal switching module is connected with the controller, and the data end of the multi-channel signal switching module is connected with the test upper computer.
2. The vehicle electrical control element testing system according to claim 1, wherein at least: the test platform comprises an automobile automatic test platform based on a VT System, an automobile automatic test platform based on a CANoe and an automobile automatic test platform based on a vTESSTudio.
3. The vehicle electrical control element testing system according to claim 2, wherein a plurality of data storage libraries are further provided in the testing host computer;
each data storage library is in communication connection with the corresponding automatic automobile testing platform.
4. The vehicle electrical control element testing system of claim 1, wherein the multi-channel signal switching module comprises at least: the system comprises a bus signal simulation board card, a PWM signal simulation board card and an A/D analog-to-digital conversion board card.
5. The vehicle electrical control element testing system of claim 1, wherein the adapter block is a shielded I/O patch box.
6. A vehicle electrical control element testing system as defined in claim 1, wherein the connector slots of the controller are connected to the control terminals of the multi-channel signal switching module by any number of cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023107492.4U CN213581846U (en) | 2020-12-21 | 2020-12-21 | Vehicle electric control element test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023107492.4U CN213581846U (en) | 2020-12-21 | 2020-12-21 | Vehicle electric control element test system |
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| CN213581846U true CN213581846U (en) | 2021-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609991A (en) * | 2022-02-08 | 2022-06-10 | 三一汽车起重机械有限公司 | Hardware-in-loop test system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609991A (en) * | 2022-02-08 | 2022-06-10 | 三一汽车起重机械有限公司 | Hardware-in-loop test system and method |
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