CN202854605U - Function test system of automotive body control model - Google Patents
Function test system of automotive body control model Download PDFInfo
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- CN202854605U CN202854605U CN 201220524223 CN201220524223U CN202854605U CN 202854605 U CN202854605 U CN 202854605U CN 201220524223 CN201220524223 CN 201220524223 CN 201220524223 U CN201220524223 U CN 201220524223U CN 202854605 U CN202854605 U CN 202854605U
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Abstract
Disclosed in the utility model is a function test system of an automotive body control model (BCM). The function test system comprises a junction box connected with a to-be-tested automotive function module; the junction box is connected with a digital printed circuit board that is connected with an industrial control computer. In addition, a test method utilizing the test system is also disclosed. According to the utility model, in the terms of hardware construction, advantages of convenience, rapidity and easy realization can be realized; the cost is reduced on the premise that the precision is ensured; according to the system, the circuit boards with different functions are loaded to carry out expansion; and the system can be connected conveniently with a to-be-tested device by the junction box. In the terms of software testing, the greatest advantage of the system is that a state graph is used to generate a test case and a test objective is achieved by traversing of the BCM working state, so that advantages of easy understanding and operation as well as realization of the test effect are realized. When the case testing is carried out, an automatic batch test can be selected or a separated manual test can also be carried out; the consistency with the predesigned function can be analyzed automatically or manual comparison can be carried out to make analyses term by term, so that a problem can be found and searched conveniently.
Description
Technical field
The utility model relates to a kind of function test system of control module, relates in particular to a kind of function test system of automobile body control module.
Background technology
Along with the application of ECU (Electrical Control Unit) in automobile is more and more, the data communication of each electric room becomes more and more, and simultaneously a large amount of uses of these separation modules have also brought the problems such as failure rate rising, wiring complexity when improving vehicle riding comfort.Car body control module BCM(BODY CONTROL MODEL) as powerful control module, realized these discrete controller, sensor and numerous electrical appliances are controlled.It comprises the functional modules such as all kinds of lamp controls, rain brush control, vehicle window control and door lock control, also have simultaneously CAN and LIN gateway function, greatly improved the performance of car load, but along with increasing body electronics equipment is applied, the integrated function of BCM is also more and more, has also brought difficulty for the functional test of BCM and analysis.
As the important control device on the automobile, the safety and reliability of BCM is all had higher requirement, in order to ensure the automotive safety operation, before dispatching from the factory, must do complete functional test to each BCM.BCM generally contacts with external environment condition by digital signal, simulating signal, pulse signal etc., in the process of exploitation BCM, need a test platform can simulate external environment condition, Devices to test is carried out the synchronizing function test, conform to designing requirement with the measured result of verifying each link, analyze simultaneously the reason that goes wrong, can accomplish that for a plurality of function items Shou Dong tests automatically, the test analysis flexible configuration.Existing technical scheme is mostly based on virtual instrument technique, such as the Simulator analogue system of dSPACE company design, it with CPU and IO Interface integration commonly used on the same circuit board, can provide hardware at loop-around test; Such as Agilent TS-5000 function test system, it is based on numerous automotive test storehouses, and the test system component of checking property and robust carries out test development to the vehicle body circuit.These systems often have equipment cost height, complicated operation, construction cycle long, usually possess automatic test capability, but lack the dirigibility that single path manual is analyzed, can't be by flexibly Configuration programming.
The utility model content
The purpose of this utility model is exactly in order to address the above problem, and a kind of function test system and method for testing of automobile body control module is provided, and it has the advantage that configuration is simple, test is flexible and convenient and practical.
To achieve these goals, the utility model adopts following technical scheme:
A kind of function test system of automobile body control module, it comprises the terminal box that is connected with automobile function module to be measured, and terminal box and digiboard link and connect, and digital integrated circuit board is connected with industrial computer.
Described industrial computer is with a plurality of slots, and industrial computer is selected based on the pci bus structure.
Described digital integrated circuit board adopts the NIPCI-6515 numeral integrated circuit board of American National instrument company, and described digital integrated circuit board is inserted in the industrial computer slot.
Described terminal box adopts the SCB-100 screened room I/O terminal box of American National instrument company.
Based on a kind of method of testing of function test system of automobile body control module, concrete steps are:
Step 1: the automobile function module pin that at first will need to relate in the test function is connected to terminal box, to the port definition of digiboard card, makes the port of digital integrated circuit board corresponding one by one with automobile function module pin in function test system;
Step 2: analyze the normalized illustration of automobile function module, refinement splits functional requirement, writes the test item document;
Step 3: definition status figure, the duty that exists in the clear and definite function, transition condition, migration path, execution action and state transition effect;
Step 4: define digiboard card port variable, set up the corresponding relation of transition condition mathematic(al) representation and automobile function module pin variable to be measured, press complete trails coverage criterion ergodic state figure, thereby obtain a test case from every transduction pathway;
Step 5: according to the required transition condition sequencing of test case, set gradually the execution action of automobile function module pin to be measured, each test case is one and comprises the set that some automobile function module tubes foot-propelleds to be measured are done, these set numberings, in order to represent test case;
Step 6: during the use-case test, automatically perform by number automobile function module tubes foot-propelled to be measured and do, and by the action of digiboard card receiving port testing automobile functional module after state changes, with the test result keeping records;
Step 7: automatic or manual contrastive test result, analyze the consistance with design proposal; To testing unusual link, test step by step generates test report at last.
The concrete steps of described step 2 are:
(2-1) with the formal description of automobile function module to be measured with test item, original state, operation condition, dbjective state;
(2-2) generate test item set document.
The concrete steps of described step 4 are:
(4-1) detected state node branch whether is if mark access path then not then enters step (4-2) if having;
(4-2) whether the detected state node exists not traverse path, and this branch node of mark travels through entirely if do not have then, then enters step (4-5), then enters step (4-3) if exist;
(4-3) this node being selected not access path, mark access route, record transition condition, record take-off point and NextState node, whether be destination node, then return if not step (4-1), if then enter step (4-5) if then detecting;
(4-5) be recorded as a test case, then detect whether there is a unmarked full traversal take-off point, detect if then a upper take-off point is carried out step (4-2), if not then test case is carried out end.
The user can inquire about a certain functional test by numbering.
The beneficial effects of the utility model: the utility model hardware aspect building convenient and swift being easy to realize, under the prerequisite that guarantees precision, reduced cost, be the characteristics of digital signal for the test signal of automobile function module, test macro adopts the pattern of digital integrated circuit board processing control machine processor to realize, carry out the occasions such as simulating signal emulation, CAN, LIN Bus simulator for needs, native system also can be expanded by the integrated circuit board that loads difference in functionality, then is connected easily with Devices to test by terminal box; Aspect testing software, the characteristics of native system maximum are to use the constitutional diagram generating test use case, realize test purpose by the traversal to the BCM duty, both be convenient to understand, easy operating has reached again the test effect, when use-case is tested, automatic batch test can be selected, also manual single test can be carried out, can automatic analysis and the consistance of design function in advance, also can manpower comparing pair, analyse item by item, be convenient to pinpoint the problems, search problem.
Description of drawings
Fig. 1 is the utility model test case product process figure;
Fig. 2 is the one-piece construction figure in the utility model test macro case study on implementation;
Fig. 3 is the example states figure in the utility model test macro case study on implementation.
Wherein, 1. industrial computer, 2. digital integrated circuit board, 3. terminal box, 4. automobile function module to be measured.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As shown in Figure 2, a kind of function test system of automobile body control module, it comprises the terminal box 3 that is connected with automobile function module 4 to be measured, and terminal box 3 is connected with digital integrated circuit board 2, and digital integrated circuit board 2 is connected with industrial computer 1.
Described industrial computer 1 is with many slots, core processor as test and analysis, industrial computer 1 is selected based on the pci bus structure, pci bus is current computer-internal bus the most commonly used, can carry out high-speed transfer, theoretical bus bandwidth is up to 1GB/s, and the widespread use of pci bus makes its first choice that becomes data acquisition system (DAS), and main component part is that industrial chassises, passive backplane and the various integrated circuit boards that can insert on it form such as CPU card, I/O card etc.; Compare business computer and have very strong extendibility, owing to adopt passive backplane+CPU card structure, but not the large panel structure of business PC, has very strong input/output function, maximum extendible 20 integrated circuit boards can link to each other with various peripheral hardwares, integrated circuit board such as the digital I/O card of test site, Simulation with I O card, counter-timer card etc., to finish various tasks, it is shorter that integrated circuit board plugs easily and fast repair time, and industrial computer 1 auxiliary device comprises display, storer, power supply in addition.
Adopt the NI PCI-6515 numeral integrated circuit board 2 of American National instrument company as data acquisition equipment, this is 64 channel separation DIO of the industrial standard of a pci interface, have 32 tunnel inputs, the optics isolation is arranged between the passage group that 8 passages are a group, have 32 tunnel drain electrode numeral outputs concurrently, its isolation characteristic can reduce noise for system, remove the spike pulse that external signal is brought, and cut-out ground loop, owing to adopted digital I/O house dog, if computing machine or application are broken down, digital integrated circuit board 2 just can enter configurable Safety output state and carry out fault detect and reparation.According to the Devices to test port number, determine the quantity of digital integrated circuit board 2, NI PCI-6515 integrated circuit board is inserted in industrial computer 1 slot, make industrial computer 1 just possess the ability of data transmit-receive, form the hardware test platform of a compactness.
Adopt the SCB-100 screened room I/O terminal box 3 of American National instrument company, this terminal box 3 can access 100 railway digital signals, can freely dispose input/output signal, range ability according to the Devices to test high level, need to provide 12V for terminal box 3, the direct supply of the appropriate levels such as 24V, when receiving or send high level signal, standard as high level, three universal circuit brassboard zones are arranged in the terminal box 3, use 100 needle connectors that the I/O signal is connected plug-in type data acquisition equipment NI PCI-6515, connector adopts shielded cable can reduce signal noise and environmental interference.
Automobile function module 4 test macros to be measured in the utility model are a kind of virtual test systems, utilize hardware to carry out hardware-in-the-loop simulation in the loop simulation technology, simulation controlled device and product interface, be connected with system product by real physical interface, the various environment that utilize computer technology to simulate controlled device come the performance of checking system.Therefore, virtual test system is a kind of Artificial Intelligence Instrument based on computer technology take software as core, we are in test process, designed according to actual needs a kind of method for testing software, the method UML-based constitutional diagram measuring technology, the external environment condition of automobile function module to be measured is to be determined by the unlike signal of its different port, according to automobile function modular design standard to be measured, when the combination of these ports is in certain state, automobile function module to be measured should have corresponding action or enter certain state, when the combination of these port statuss does not satisfy condition, automobile function module to be measured then should not moved, the One's name is legion of general automobile function module pin to be measured, consisting of the combination of different conditions quite a lot equally, the utility model application state figure in test process has solved mainly that test case generates and two problems of path covering.
As shown in Figure 1, based on a kind of a kind of method of testing of function test system of automobile body control module, take the vehicle body anti-theft alarm function test of certain vehicle controller as example, can carry out in the steps below
Step 1: at first automobile function module 4 pins to be measured that relate in the function are connected to terminal box 3, in function test system, the port of digiboard card 2 are defined, make the port of digital integrated circuit board 2 corresponding one by one with automobile function module 4 pins to be measured;
Step 2: analyze the normalized illustration of automobile function module 4 to be measured, refinement splits functional requirement, writes the test item document;
Step 3: definition status figure, the duty that exists in the clear and definite function, transition condition, migration path, execution action and state transition effect, as shown in Figure 3;
Step 4: define digital integrated circuit board 2 port variables, set up the corresponding relation of transition condition mathematic(al) representation and port variable, press complete trails coverage criterion ergodic state figure, thereby obtain a test case from every transduction pathway, Search Results is as shown in table 1:
Table 1 test case
| Migration path | The covering state | The Expected Results example |
| ?T1，T2 | ?C1，C2 | The vehicle body state is from normally to antitheft not alarm condition |
| ?T1，T3，T4 | ?C1，C2，C3 | The vehicle body state is from normally to the burglar alarm state |
| ?T1，T5，T6 | ?C1，C2，C4 | The vehicle body state is from entering antitheft not alarm condition to exit status |
Step 5: according to the required transition condition sequencing of test case, set gradually the execution action of automobile function module 4 ports to be measured, each test case is a set that comprises automobile function module 4 some port-actions to be measured, these set are numbered, in order to represent test case;
Step 6: when carrying out the use-case test, automatically perform by number automobile function module 4 port-actions to be measured, and by the action of digital integrated circuit board 2 receiving port testing automobile functional modules 4 after state changes, with the test result keeping records;
Step 7: automatic or manual contrastive test result, analyze the consistance with design proposal; To testing unusual link, carry out test step by step, generate at last test report.
The concrete steps of described step 2 are:
(2-1) with the formal description of automobile function module to be measured with test item, original state, operation condition, dbjective state;
(2-2) generate test item set document.
Define C1, C2 in the described step 3, C3, C4 are duty, definition of T 1, T2, T3, T4, T5, T6 are migration path.
The concrete steps of described step 4 are:
(4-1) detected state node branch whether is if mark access path then not then enters step (4-2) if having;
(4-2) whether the detected state node exists not traverse path, and this branch node of mark travels through entirely if do not have then, then enters step (4-5), then enters step (4-3) if exist;
(4-3) this node being selected not access path, mark access route, record transition condition, record take-off point and NextState node, whether be destination node, then return if not step (4-1), if then enter step (4-5) if then detecting;
(4-5) be recorded as a test case, then detect whether there is a unmarked full traversal take-off point, detect if then a upper take-off point is carried out step (4-2), if not then test case is carried out end.
Although above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (4)
1. the function test system of an automobile body control module is characterized in that, it comprises the terminal box that is connected with automobile function module to be measured, and terminal box and digiboard link and connect, and digital integrated circuit board is connected with industrial computer.
2. the function test system of automobile body control module as claimed in claim 1 is characterized in that described industrial computer is with a plurality of slots, and industrial computer is selected based on the pci bus structure.
3. a kind of function test system of automobile body control module as claimed in claim 1 is characterized in that, described digital integrated circuit board adopts the NIPCI-6515 numeral integrated circuit board of American National instrument company, and described digital integrated circuit board is inserted in the industrial computer slot.
4. a kind of function test system of automobile body control module as claimed in claim 1 is characterized in that, described terminal box adopts the SCB-100 screened room I/O terminal box of American National instrument company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524223 CN202854605U (en) | 2012-10-12 | 2012-10-12 | Function test system of automotive body control model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524223 CN202854605U (en) | 2012-10-12 | 2012-10-12 | Function test system of automotive body control model |
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| Publication Number | Publication Date |
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| CN202854605U true CN202854605U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220524223 Expired - Fee Related CN202854605U (en) | 2012-10-12 | 2012-10-12 | Function test system of automotive body control model |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854877A (en) * | 2012-10-12 | 2013-01-02 | 山东省科学院自动化研究所 | Function test system and test method of automobile body control module |
| CN110162017A (en) * | 2019-05-30 | 2019-08-23 | 神龙汽车有限公司 | Vehicle LIN bus communication Information abnormity diagnostic system and method |
| CN110161901A (en) * | 2019-04-29 | 2019-08-23 | 广东永强奥林宝国际消防汽车有限公司 | Test method, equipment and its computer readable storage medium of integrated control system for fire trucks |
-
2012
- 2012-10-12 CN CN 201220524223 patent/CN202854605U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854877A (en) * | 2012-10-12 | 2013-01-02 | 山东省科学院自动化研究所 | Function test system and test method of automobile body control module |
| CN110161901A (en) * | 2019-04-29 | 2019-08-23 | 广东永强奥林宝国际消防汽车有限公司 | Test method, equipment and its computer readable storage medium of integrated control system for fire trucks |
| CN110162017A (en) * | 2019-05-30 | 2019-08-23 | 神龙汽车有限公司 | Vehicle LIN bus communication Information abnormity diagnostic system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20141012 |
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| EXPY | Termination of patent right or utility model |