CN201812200U - Test equipment for automobile electronic control system - Google Patents
Test equipment for automobile electronic control system Download PDFInfo
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- CN201812200U CN201812200U CN 201020225635 CN201020225635U CN201812200U CN 201812200 U CN201812200 U CN 201812200U CN 201020225635 CN201020225635 CN 201020225635 CN 201020225635 U CN201020225635 U CN 201020225635U CN 201812200 U CN201812200 U CN 201812200U
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Abstract
The utility model discloses test equipment for an automobile electronic control system, which is used to test an automobile electronic control system to be tested through man-machine interface equipment during the test implementation process. The automobile electronic control system interacts with the test equipment through a bidirectional interface; the man-machine interface equipment can display or influence parameters of models running in the test equipment; and the test equipment comprises an environmental model and a test model, wherein the test model can modify the parameters of the environmental model and can be used to check the operation effect after the parameters of the environmental model are modified. The test equipment for the automobile electronic control system can be specially applied to hardware-in-the-loop tests for automobile electronic control systems, the structure is simple and feasible, and the test equipment is convenient for implementation.
Description
Technical field
The utility model relates to a kind of testing apparatus of Auto Electronic Controlled System, wherein, Auto Electronic Controlled System to be measured can be one (as engine control system), several (add gearbox control system as engine control system and add the braking anti-lock control system), also can be the Control Network that all electronic control systems are formed on the automobile.
Background technology
Typical Auto Electronic Controlled System, for example automobile electronic controller (ECU) etc. is a kind of electronic-controlled installation that is widely used in automotive field, this device is regulated and is calibrated automobile by the running status of each parts of measured automobiles.
In development and exploitation automobile electronic controller (ECU), following development process and/or development scheme have extensively been adopted: in function design and development phase, take out the mathematical model of automobile electronic controller and controlling object thereof by means of mathematical modeling instrument (Matlab/Simulink), design is verified by the mode of emulation.
Then in rapid control prototyping (RCP) stage, convert the abstract automobile electronic controller model that comes out of previous stage to an executable program by means of code generator, this executable program moves on a hardware platform, and this hardware platform can interact by corresponding I/O interface and working control object.
If the control effect is satisfied, the executable code of automobile electronic controller model generation batch electronic controller hardware that will be abstract comes out by code generator then.Before the working control object uses, need carry out detailed test at the batch automobile electronic controller, use hardware usually at loop-around test (Hardware-In-The-Loop is called for short the HIL test).
In the HIL test, automobile electronic controller is connected with testing apparatus in batches, on testing apparatus, the function of tested electronic controller is carried out emulation by auto model, the state of auto model passes to electronic controller by Sensor Analog Relay System, gather the output of electronic controller simultaneously, thereby realize the interactive contact of electronic controller and testing apparatus.
Disclose a kind of method and apparatus of testing electronic control system among the EP1898282A, mentioned that wherein described control system can be an electric motor control device, or whole automobile travel and the engine dynamic model.But disclosed content is very wide in range and general in the prior art, make those skilled in the art when attempting wherein content put into practice, be difficult to be applied in any concrete field and/or control system, for example, though the prior art has been mentioned automobile, but, how it specifically is applied to automotive field lacks the corresponding techniques solution, those skilled in the art are under the situation that does not spend any creative work, be difficult to it is committed on a certain concrete direction of automotive field for example test of ECU.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of testing apparatus of Auto Electronic Controlled System, to reduce or to avoid problem noted earlier.
For solving the problems of the technologies described above, the utility model proposes a kind of testing apparatus of Auto Electronic Controlled System, this testing apparatus is tested the Auto Electronic Controlled System of needs test by the human interface device of implementing test process, described Auto Electronic Controlled System is mutual by bidirectional interface and described testing apparatus, and described human interface device can show or influence the parameter of the model that moves in the testing apparatus; Described testing apparatus is made up of environmental model, test model; Described test model can be revised the parameter of environmental model and check amended operational effect.
The testing apparatus of the above-mentioned Auto Electronic Controlled System that the utility model proposed can specifically be applied to Auto Electronic Controlled System is carried out hardware at loop-around test, and it is simple for structure, is convenient to implement.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 shows is structural representation according to the testing apparatus of the Auto Electronic Controlled System of a preferred embodiment of the present utility model;
What Fig. 2 showed is the structural representation of a specific embodiment of testing apparatus shown in Fig. 1.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.Wherein, identical parts adopt identical label.
ECU is a kind of electronic control system that is widely used in automotive field, and this system regulates and calibrates automobile by the running status of each parts of measured automobiles.ECU is made up of large scale integrated circuits such as microprocessor (CPU), storer (ROM, RAM), input/output interface (I/O), analog to digital converter (A/D) and shaping, drivings usually.In ECU, CPU is the core, and it has the function of computing and control, also in real time to the control of storer (ROM, RAM), input/output interface (I/O) and other external circuit, and has fault self-diagnosis and defencive function.In the utility model, the product that ECU is only used for testing, that is, ECU need test it after design produces sample, whether meet design requirement to judge it, whether be a qualified product perhaps.
So-called Auto Electronic Controlled System in the utility model, be not limited only to this specific model form of ECU, but the obtainable Auto Electronic Controlled System of any prior art, whether the proving installation that the utility model proposed is used for these Auto Electronic Controlled System are tested, qualified to judge it.Wherein, Auto Electronic Controlled System to be measured can be one (as engine control system), several (add gearbox control system as engine control system and add braking anti-lock control system etc.), also can be the Control Network that all electronic control systems are formed on the automobile.
Fig. 1 shows is that wherein, 1 representative needs the Auto Electronic Controlled System of test according to the structural representation of the testing apparatus of the Auto Electronic Controlled System of a preferred embodiment of the present utility model; 2 representatives testing apparatus of the present utility model; 3 representative of consumer interfacing equipments, for example PC etc.
Wherein Auto Electronic Controlled System 1 is a kind of control module of Auto Electronic Controlled System, as the control module of motor car engine or the control module of automatic transmission.The purpose that constitutes testing apparatus is exactly that the function of Auto Electronic Controlled System 1 is tested, and for example carries out the HIL test of aforementioned Auto Electronic Controlled System.Enforcement to the test process of described Auto Electronic Controlled System 1 is undertaken by testing apparatus 2.In order to implement test process, realize connecting by bidirectional interface between Auto Electronic Controlled System 1 and the testing apparatus 2, the control system data of Auto Electronic Controlled System 1 transfer to testing apparatus 2 by the input interface of testing apparatus 2, also can revise the control system data in the testing apparatus 2 and also pass through the output interface reverse transfer of testing apparatus 2 to Auto Electronic Controlled System 1.Human interface device 3 provides the interactive interface between testing apparatus 2 and the user.
What Fig. 2 showed is the structural representation of a specific embodiment of testing apparatus shown in Fig. 1, and the main body of testing apparatus 2 is two models, i.e. environmental model 4 and test model 5, and the carrier of two model runnings.The test of Auto Electronic Controlled System 1 must be built up a closed-loop system with the group of objects of its control and just can be produced effect, and such as the function that will test an engine control system, just needs this engine control system is installed on its engine that adapts to.Different with traditional method of testing, in this proving installation, testing apparatus 2 internal operations have environmental model 4, environmental model 4 comes the true environment for use of simulated automotive electronic control system 1, such as, if Auto Electronic Controlled System to be tested is an engine control system, so pairing environmental model is exactly the ontology model of the engine that adapts to of described engine control system.For guaranteeing the real-time of environmental model, the carrier of environmental model operation is a real-time simulation machine normally.The true service condition of Auto Electronic Controlled System 1 informs Auto Electronic Controlled System 1 by the parameter of environmental model 4.Actual test process to control system is not by environmental model 4, but carry out by test model 5.For guaranteeing real-time, the carrier of environmental model 4 operations is generally a real-time simulation machine, and the carrier of test model 5 operations is generally an experiment PC.
Interaction relationship between Auto Electronic Controlled System 1 and environmental model 4 and the test model 5 is as follows: Auto Electronic Controlled System 1 is by the carrier of environmental model 4 operations---and the IO interface on real-time simulation machine and the relevant apparatus realizes two-way data interaction between Auto Electronic Controlled System 1 and the environmental model 4; The data interaction of test model 5 and environmental model 4 realizes that by communication protocol the realization of this communication protocol is by means of the carrier of two kinds of model runnings---the realization that is connected of real-time simulation machine and test PC.
The configuration of test model 5 also can be undertaken by human interface device 3 equally.On human interface device 3, creates equally or revises test model 5, be converted into machine-readable code and operate in the carrier that test model moves by the software that is suitable for---test on the PC.Test model 5 can pass through suitable software, builds as NI/LabVIEW, can be an automatically process of test, and parameter that also can manual modification environmental model 4 is to realize test purpose.
Be the convenient a certain variable of when environmental model 4 moves, revising in the environmental model 4, on human interface device 3, environmental model 4 is compiled in the process of the code that machine can discern, the title and the corresponding physical memory address thereof of all variablees in the environmental model 4 can be stored in the storage file 6.All variablees in the environmental model are all represented with a uniquely identified identifier.Storage file 6 produces in the compilation process of environmental model 4, comprise variable identifier and physical storage address in the environmental model 4 between corresponding relation.Like this, the visit of the variable of 5 pairs of environmental models 4 of test model and modification also just can be undertaken by the storage file 6 that reads the environment model variable.Test model 5 can access environment model 4 variable and it is changed, visit and change procedure do not need itself to carry out message exchange with environmental model 4.
The testing apparatus of the above-mentioned Auto Electronic Controlled System that the utility model proposed can specifically be applied to Auto Electronic Controlled System is carried out hardware at loop-around test, and it is simple for structure, is convenient to implement.
The above only is the schematic embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations, the modification of being done under the prerequisite that does not break away from design of the present utility model and principle and combining all should belong to the scope of the utility model protection.
Claims (1)
1. the testing apparatus of an Auto Electronic Controlled System, this testing apparatus (2) is tested the Auto Electronic Controlled System (1) of needs test by the human interface device (3) of implementing test process, it is characterized in that, wherein said Auto Electronic Controlled System (1) is mutual by bidirectional interface and described testing apparatus (2), and described human interface device (3) can show or influence the parameter of the model of operation in the testing apparatus (2); Described testing apparatus (2) is made up of environmental model (4), test model (5); Described test model (5) can be revised the parameter of environmental model (4) and check amended operational effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020225635 CN201812200U (en) | 2010-06-09 | 2010-06-09 | Test equipment for automobile electronic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020225635 CN201812200U (en) | 2010-06-09 | 2010-06-09 | Test equipment for automobile electronic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812200U true CN201812200U (en) | 2011-04-27 |
Family
ID=43895140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020225635 Expired - Lifetime CN201812200U (en) | 2010-06-09 | 2010-06-09 | Test equipment for automobile electronic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812200U (en) |
-
2010
- 2010-06-09 CN CN 201020225635 patent/CN201812200U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |