CN107491061A - The network automatically test system and its method of a kind of commercial car OBD diagnostic devices - Google Patents
The network automatically test system and its method of a kind of commercial car OBD diagnostic devices Download PDFInfo
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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Abstract
The invention provides a kind of network automatically test system of commercial car OBD diagnostic devices, including：Master control set, power control, CAN communication device and tested OBD diagnostic devices, wherein, the diagnosis request that master control set is sent based on tested OBD diagnostic devices, select corresponding test script to call power control to provide power supply for tested OBD diagnostic devices and call CAN communication device to send corresponding CAN diagnostic responses message to tested OBD diagnostic devices, tested OBD diagnostic devices receive the diagnostic response message that CAN communication device is sent and generate diagnostic result data.The present invention also provides a kind of network automatically method of testing of commercial car OBD diagnostic devices.The present invention can be at vehicle development initial stage, tested OBD diagnostic devices are tested automatically in the case where emulating ECU environment, independent of real ECU environment, and can implementation of test cases and result judge automatically, avoid the error of manual test and improve the efficiency and precision of test.
Description
Technical field
The present invention relates to a kind of automatization test system and its method, and in particular to a kind of commercial car OBD diagnostic devices
Network automatically test system and its method.
Background technology
As automotive electronic technology continues to develop, the ECU (ECU) arranged in commercial car is more and more, and ECU passes through
CAN communication cooperates, and the function structure and network topology of complexity is formed, for realizing increasingly increased functional configuration.
Meanwhile ECU is also caused to include more number of faults, functional configuration and detection project.Commercial car is all equipped with OBD at present
System (OBD), diagnostic device diagnose interface by OBD and communicated with each ECU, for realizing vehicle trouble reading, parameter
Configuration, program renewal and the function such as vehicle self-test, facilitate vehicle after sale and maintenance.
Ensureing that ECU deagnostic communications are correct simultaneously, network test requirements are equally proposed to OBD diagnostic devices, verify it
Uniformity based on diagnosing protocol, its interference to diagnosing process is excluded, ensure the accuracy of vehicle diagnosis result.
It is to be connected diagnostic device with true ECU at present to the method for testing of OBD diagnostic devices, control ECU's is total manually
Line and rigid line excitation, verify each exemplary functions of diagnostic device.However, this method of testing is all the last rank in vehicle research and development
Section, by the way that diagnostic device is integrated under true ECU and real vehicle environment, checking diagnostic device sends the correctness of diagnosis request,
And the uniformity shown to diagnostic response.Problems be present in this method of testing：Research and development dependent on ECU and vehicle are entered
Degree, intervention time are later；Under true ECU environment, partial fault code and vehicle data are difficult to manufacture, it is impossible to cover positive test；
Under true ECU environment, it is impossible to cover the negative tests such as negative response and exception response；Manual authentication mode is less efficient, it is impossible to
Ensure high accuracy and reliability requirement.
The content of the invention
The example technical problems to be solved of the present invention are to provide a kind of commercialization of the testing efficiency of raising OBD diagnostic devices
The network automatically test system and its method of car OBD diagnostic devices.
The technical solution adopted by the present invention is：
One embodiment of the invention provides a kind of network automatically test system of commercial car OBD diagnostic devices, including：Master control
Device, power control, CAN communication device and tested OBD diagnostic devices, wherein, the master control set, for based on one
Or multiple ECU diagnostic data base file generated test configurations information and test case information, and based on the test generated
Configuration information and the test case information generate corresponding test script；And diagnosed in response to receiving the tested OBD
The diagnosis diagnosed to the ECU that equipment is sent is asked, and tested diagnostic service pair is selected from the test script generated
The test script answered simultaneously performs the corresponding test script, and generation corresponds to the various diagnostic responses of the diagnosis request and by institute
Diagnostic response is stated to send to CAN by the CAN communication device；The diagnosis document includes related to the ECU examine
Disconnected agreement and diagnostic data base, the diagnosis request include emulation CAN message data corresponding with the diagnostic data base；Institute
Stating diagnostic response includes the emulation CAN message data corresponding with the diagnosis request；The power control, for controlling
Communication control unit simultaneously supplies power supply by the communication control unit to the tested OBD diagnostic devices；The CAN communication dress
Put, give the master control set for receiving the diagnosis request Concurrency and be sent to the diagnostic response described tested
OBD diagnostic devices；The tested OBD diagnostic devices, for sending diagnosis request to CAN and the diagnostic response to receiving
Dissection process is carried out, obtains corresponding diagnostic result data；The master control set is additionally operable to, the diagnostic result data that will be received
Compared with the expected results data that the diagnostic response is characterized, and based on comparative result generation and the diagnostic result number
According to corresponding test report.
Alternatively, in addition to：Communication control unit, with the power control, the CAN communication device and the quilt
The connection of OBD diagnostic devices is surveyed, for the instruction sent based on the master control set, is optionally carried the power control
The power supply of confession is supplied to the tested OBD diagnostic devices and the diagnostic response for optionally sending the CAN communication device
It is sent to the tested OBD diagnostic devices；
Alternatively, the master control set include test and management module, test script execution module, test script library module and
Hardware controls drive module, the test and management module, for receiving the diagnosis document and based on the diagnosis received
Document structure tree test configurations information and test case information, and the life of the test result based on the tested OBD diagnostic devices
Into test report；The test script library module, for establishing and storing diagnostic categories diagnosed to the ECU and corresponding
Test case；The test script execution module, for the test configurations information configured according to the test and management module
Test script is generated with the test case information, and determination is corresponding with the diagnosis request from the test script generated
Test script and perform the corresponding test script, generate in response to it is described diagnosis request diagnostic response；And for inciting somebody to action
The diagnostic result data received are tied compared with the default reply data, and based on the corresponding test of comparative result generation
Fruit, and the test result is sent to the test and management module；The hardware controls drive module, for controlling the electricity
Source control device and the communication control unit provide power supply and the control CAN communication to the tested OBD diagnostic devices
Device receives the diagnosis that the tested OBD diagnostic devices are sent and asks and send the diagnosis to the tested OBD diagnostic devices
Response.
Alternatively, the diagnostic categories include one or more of following classification：ECU identifications test, information of vehicles are read
Test, dynamic data readwrite tests, DTC read test, IO controls and routine control test, program is taken to write with a brush dipped in Chinese ink test and pass
Defeated protocol test.
Alternatively, the ECU identifications test includes one or more of following test case：Positive response is tested, is no
The test of provisioning response traversal, response timeout test and null response test；The information of vehicles read test includes following test and used
One or more of example：Effective codomain traversal test, invalid data test, the test of negative response traversal, response timeout test
Tested with null response；The dynamic data readwrite tests includes the traversal test of virtual value domain, the test of negative response traversal, response
Time-out test and null response test；The DTC read test includes one or more of following test case：Failure
The test of code traversal, the test of invalid failures code, the test of negative response traversal, response timeout test and null response test；Control and
Routine control test includes one or more of following test case：Control model traversal is tested, control result traversal is tested,
The test of negative response traversal, response timeout test and null response test；Described program, which writes with a brush dipped in Chinese ink test, includes following test case
One or more of：Flow testing, failure mode processing test are write with a brush dipped in Chinese ink, have secure access to test of heuristics and writes with a brush dipped in Chinese ink file to read and is surveyed
Examination；The host-host protocol test includes one or more of following test case：Single frames sends test, multiframe sends test,
Multiframe receives test and time parameter test.
Another embodiment of the present invention provides a kind of network automatically method of testing of commercial car OBD diagnostic devices, including：Base
In one or more ECU diagnosis document structure tree test configurations information and test case information, and based on the test generated
Configuration information and the test case information generate corresponding test script；The diagnosis document includes related to the ECU
Diagnosing protocol and diagnostic data base；In response to being diagnosed to the ECU of receiving that the tested OBD diagnostic devices send
Diagnosis request, determine to diagnose the corresponding test script of request and to perform this corresponding with described from the test script generated
Test script, the diagnostic response in response to the diagnosis request is generated, and the diagnostic response is sent to the tested OBD and examined
Disconnected equipment；The diagnosis request includes emulation CAN message data corresponding with the diagnostic data base；The diagnostic response bag
Include the emulation CAN message data corresponding with the diagnosis request；In response to receiving the diagnostic response, the tested OBD
Diagnostic device carries out dissection process to the diagnostic response, obtains corresponding diagnostic result data；Receive the diagnostic result number
According to and by the diagnostic result data that are received compared with the default reply data that the diagnostic response is characterized, and based on than
Relatively result generates corresponding test report.
Alternatively, in addition to：In the transmitting procedure of the diagnostic response, the transmission of the diagnostic response is interrupted, and
Interrupt the power supply to the tested OBD diagnostic devices supply.
Alternatively, the diagnostic categories include one or more of following classification：ECU identifications test, information of vehicles are read
Test, dynamic data readwrite tests, DTC read test, IO controls and routine control test, program is taken to write with a brush dipped in Chinese ink test and pass
Defeated protocol test.
Alternatively, the ECU identifications test includes one or more of following test case：Positive response is tested, is no
The test of provisioning response traversal, response timeout test and null response test；The information of vehicles read test includes following test and used
One or more of example：Effective codomain traversal test, invalid data test, the test of negative response traversal, response timeout test
Tested with null response；The dynamic data readwrite tests includes the traversal test of virtual value domain, the test of negative response traversal, response
Time-out test and null response test；The DTC read test includes one or more of following test case：Failure
The test of code traversal, the test of invalid failures code, the test of negative response traversal, response timeout test and null response test；The IO
Control and routine control test include one or more of following test case：The test of control model traversal, control result time
Go through test, the test of negative response traversal, response timeout test and null response test；Described program, which writes with a brush dipped in Chinese ink test, includes following survey
One or more of example on probation：Flow testing, failure mode processing test are write with a brush dipped in Chinese ink, test of heuristics is had secure access to and writes with a brush dipped in Chinese ink file
Read test；The host-host protocol test includes one or more of following test case：Single frames sends test, multiframe is sent
Test, multiframe receive test and time parameter test.
Compared with prior art, the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention
System can be examined diagnosis ECU tested OBD diagnostic devices automatically at vehicle development initial stage in the case where emulate ECU environment
It is disconnected, independent of real ECU environment, and can implementation of test cases and result judgement automatically, avoid manual test
Error, improve testing efficiency and precision.
Brief description of the drawings
Fig. 1 is that the structure of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is the master control dress of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention
The structural representation put；
Fig. 3 is the master control dress of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention
The structural representation for the test script library module put；
Fig. 4 is that the flow of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention is shown
It is intended to.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Fig. 1 is that the structure of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention is shown
It is intended to；Fig. 2 is the master control set of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention
Structural representation；Fig. 3 is the master control of the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention
The structural representation of the test script library module of device.
As shown in figure 1, the network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention, bag
Include：Master control set 101, power control 102, CAN communication device 103, communication control unit and tested OBD diagnostic devices
104.Wherein, the master control set 101, for the diagnostic data base document structure tree test configurations letter based on one or more ECU
Breath and test case information, and based on the test configurations information generated and the corresponding test of test case information generation
Script；And the diagnosis diagnosed to the ECU sent in response to receiving the tested OBD diagnostic devices is asked, from
The test script corresponding with the diagnosis request is determined in the test script generated and performs the corresponding test script, it is raw
Into in response to it is described diagnosis request diagnostic response, and by the diagnostic response by the CAN communication device 103 send to
CAN；The diagnosis document includes the diagnosing protocol and diagnostic data base related to the ECU, and the diagnosis request includes
Emulation CAN message data corresponding with the ECU diagnostic data bases；The diagnostic response includes relative with the diagnosis request
The emulation CAN message data answered.The power control 102, for controlling communication control unit and being controlled by the communication
Device processed supplies power supply to the tested OBD diagnostic devices 104.The CAN communication device 103, please for receiving the diagnosis
Ask and be sent to the master control set 101 and the diagnostic response is sent to the OBD diagnostic devices 104.It is described tested
OBD diagnostic devices 104, asked for transmission diagnosis to CAN and the diagnostic response to receiving carries out dissection process, obtained
Corresponding diagnostic result data,.In addition, the master control set 101 is additionally operable to, the diagnostic result data received are examined with described
The default reply data that disconnected response is characterized is compared, and corresponding with the diagnostic result data based on comparative result generation
Test report.
It should be noted that the diagnosis request that tested OBD diagnostic devices 104 are sent can be based on being operated manually, also may be used
It is transmitted by the control instruction of master control set 101, in this case, is tested OBD diagnostic devices 104 and master control set
Corresponding communication interface between 101 be present.In addition, the diagnostic result data of tested OBD diagnostic devices generation can be by corresponding
Display terminal is read out and is input in master control set 101, can also be sent automatically by way of USB interface or serial ports
To master control set 101, the display terminal can be the display screen or additionally configure that tested OBD diagnostic devices 104 carry
Display screen.
The network automatically test system of commercial car OBD diagnostic devices provided in an embodiment of the present invention can be in vehicle development
At initial stage, the tested OBD diagnostic devices for diagnosing ECU can be diagnosed automatically in the case where emulating ECU environment, including checking is tested
The diagnosis request of OBD diagnostic devices is sent, diagnostic response is handled and the uniformity of host-host protocol, and the diagnosis is independent of real
ECU environment, and implementation of test cases and result can judge automatically, the error of manual test is avoided, improves test effect
Rate and precision.
Specifically, as shown in Fig. 2 the master control set may include test and management module, test script execution module, test
Script library module and hardware controls drive module.
Further, the test and management module, for receiving the diagnosis document and based on the diagnosis received
Document is configured and managed to diagnosing the information needed for the ECU, is believed with generating the test configurations information and test case
Breath, the configuration and management specifically may include：Diagnostic data base loading, emulation ECU configurations, test case configuration, test parameter
Configuration, is tested diagnostic device management, test record Reports Administration and tester's management etc., wherein, diagnosis document can be CDD or
Person's ODX forms.In addition, test and management module is also used for the diagnostic test results life sent based on the tested OBD diagnostic devices
Into test report and user interface is provided, the information such as test configurations are shown, in order to which user can be carried out accordingly
Operation.Test case information can be selected in test script library module, if no and ECU in test script library module
The corresponding test case of document is diagnosed, then can be generated by newly-built mode.In the example of the present invention, test
Management module can moisten scientific and technological INTA softwares to perform using as permanent.
Further, the test script execution module, the test for being configured according to the test and management module are matched somebody with somebody
Confidence ceases and test case information generation test script, and selection is relative with the diagnosis request from the test script generated
The test script answered simultaneously performs the corresponding test script, generates the diagnostic response in response to the diagnosis request.The test pin
The test case corresponding with diagnosis request is compiled executable program by this.In addition, the test script execution module is also
The diagnostic result data that tested OBD diagnostic devices 104 are generated are compared with default reply data, comparative result content bag
Include：Diagnosis request uniformity, diagnostic data display consistency, abnormal prompt uniformity and diagnostic process uniformity.And it is based on
Comparative result generates corresponding test result, and the test result is sent into the test and management module, test and management
Test result is embedded into test report template by module, so as to automatically generate the test report corresponding with the test result
Accuse.Test script execution module, can be from test when generating test script based on test configurations information and test case information
Selected in script library module, if not corresponding with the test case of ECU diagnosis documents in test script library module
Test script, then it can be generated by newly-built mode.The default reply data that diagnostic response is characterized is patrolled according to default
Volume and host-host protocol run obtained data, i.e. whether the relatively more tested OBD diagnostic devices of test script execution module according to default
Logical sum host-host protocol operation CAN emulation data, to verify the uniformity of host-host protocol.In the example of the present invention, survey
Examination script execution module can perform using such as Vector CANoe softwares.
Further, the test script library module, the program text that test script is write based on Vector CAPL language
Part, for establishing and storing to the ECU diagnostic categories diagnosed and corresponding test case.One in the present invention is shown
In example, as shown in figure 3, the test script library module diagnostic categories establishing and store including one in following classification or
It is multiple：ECU identifications test, information of vehicles read test, dynamic data readwrite tests, DTC read test, IO control and example
Test and host-host protocol test are write with a brush dipped in Chinese ink in process control test, program.The ECU identifications test includes one in following test case
It is or multiple：Positive response test, the test of negative response traversal, response timeout test and null response test；The information of vehicles
Read test includes one or more of following test case：Effective codomain traversal test, invalid data test, negative response
Traversal test, response timeout test and null response test；The dynamic data readwrite tests include virtual value domain traversal test,
The test of negative response traversal, response timeout test and null response test；The DTC read test includes following test and used
One or more of example：The test of DTC traversal, the test of invalid failures code, the test of negative response traversal, response timeout test
Tested with null response；The IO controls and routine control test include one or more of following test case：Control mould
The test of formula traversal, the test of control result traversal, the test of negative response traversal, response timeout test and null response test；It is described
Program, which writes with a brush dipped in Chinese ink test, includes one or more of following test case：Write with a brush dipped in Chinese ink flow testing, failure mode processing test, safety
File read test is tested and write with a brush dipped in Chinese ink to access algorithm；The host-host protocol test includes one or more in following test case
It is individual：Single frames sends test, multiframe sends test, multiframe receives test and time parameter test.So, the embodiment of the present invention provides
The network automatically test systems of commercial car OBD diagnostic devices can cover ECU various diagnostic responses, including true ECU
The positive test that can not be covered under the environment and negative that can not cover is corresponding and the negative test such as exception response.
Further, the hardware controls drive module, for controlling the power control and the Control on Communication
Device provides power supply to the tested OBD diagnostic devices and the control CAN communication device receives the tested OBD diagnosis and set
The diagnosis request and send the diagnostic response to the tested OBD diagnostic devices that preparation is sent, it may include power supply driving is single
Member and CAN driver element.In the example of the present invention, hardware controls drive module can use such as Vector CANoe
The driver of software transfer power supply and CAN communication device performs.
In addition, in one embodiment of the invention, the network automatically test system of the commercial car OBD diagnostic devices
Communication control unit is may also include, described communication control unit one end fills with the power control 102 and the CAN communication
103 connections are put, the other end is connected with the tested OBD diagnostic devices 104, for the finger sent based on the master control set 101
Order, the power supply that the power control 102 provides optionally is supplied to the tested OBD diagnostic devices 104 and choosing
The diagnostic response that the CAN communication device 103 is sent is sent to selecting property the tested OBD diagnostic devices 104.Due to that can lead to
Communication control unit is crossed to control communication control unit to control the break-make of power supply and CAN communication, it is different so as to simulate CAN communication
Normal test.
In the present invention, master control set 101 can be commercial Application computer or PC.Power control 102 can be
The model N6702 of programmable power supply, e.g. Deco skill power supply, the power control can be with the power supplys of offer 220V power supplys
Supply equipment connects, to provide power supply for whole system.CAN communication device 103 can be the CAN emulating instruments of support CAN communication, example
Such as, the Vector VN1640 of CANoe softwares CAN boxes are supported, communication control unit can be can be right based on master control set 101
Power supply and communication carry out the device of make-break operation, in the example of the present invention, it may include bus test board and IO controls
Board, in one example, bus test board can be model Vector VT2820 board, and IO Control cards can be NI
Control card, but be not limited thereto.Wherein, master control set 101 can be connected by Ethernet interface and power control 102
Connect, can be connected by USB interface with CAN communication device 103, in the case where CAN communication device 103 is CAN emulating instruments, can be led to
USB interface is crossed to be connected with CAN communication device 103.Programmable power supply connects tested OBD diagnostic devices 104 by bus test board
Power pins, powered for tested OBD diagnostic devices 104, specifically, on bus test board there are multiple input channels and defeated
Go out passage, be provided with relay between input channel and output channel, the KL30 of some of which input channel and programmable power supply,
KL15 is connected with GND pin, and corresponding output channel is connected with KL30, KL15 and GND pin of tested OBD diagnostic devices 104,
So as to which the power supply for providing programmable power supply is supplied to tested OBD diagnostic devices 104.CAN emulating instruments are connected by bus test board
The CAN of tested OBD diagnostic devices 104 is connect, deagnostic communication is carried out with it, specifically, the input channel of bus test board
In two input channels be connected respectively with the CAN_H pins and CAN_L pins of CAN emulating instruments, corresponding output channel and quilt
The CAN_H pins for surveying OBD diagnostic devices 104 connect with CAN_L pins.Master control set 101 connects NI control panels by pci interface
Card, break-make of the NI Control cards based on the instruction that master control set is sent by each passage of I/O pin controlling bus test board, from
And the power supply that the power control 102 provides optionally is supplied to the tested OBD diagnostic devices 104 and selection
The diagnostic response that the CAN communication device 103 is sent is sent to property the tested OBD diagnostic devices 104.The present invention's
In one example, the bus test board may include power source protective module, relay matrix module, load matched module and refer to
Show lamp, the power source protective module is used to the power supply of programmable power supply supply is limited to protect the tested OBD to examine
Disconnected equipment 104, the make-break operation of relay of the relay matrix module to being arranged on the bus test board are carried out
Control, the CAN communication that the load matched module is used between the CAN emulating instruments and the tested OBD diagnostic devices are matched somebody with somebody
Terminal load is put, the indicator lamp is used to indicate the input/output state of the bus test board.
In one exemplary embodiment, the network automatically of commercial car OBD diagnostic devices provided in an embodiment of the present invention
The testing process of test system may include following steps：
Step 1: configuration diagnostics database.One or more diagnosis for including related ECU are loaded into test and management module
Agreement describes diagnostic data library file (CDD or ODX).
Step 2: configuration emulation ECU.The ECU emulated is needed according to loaded diagnostic data library file selection, may be selected
One or more ECU establish emulation diagnostic network test environment.
Step 3: configuration testing use-case and relevant parameter.Test and management module is according to the emulation ECU of configuration, from test pin
Executable test case, the test case that tester needs to perform by interface selection are chosen in this library module, and is configured
Test parameter：Such as perform number, MTD, invalidating sub-services test number.
Step 4: test and management configures.Pass through interface typing tester's information of test and management module, such as tester
Name, department and rank etc.；Typing is tested diagnostic device information, such as diagnostic device manufacturer, soft or hard version number, development phase
Deng；Typing test process management：Such as testing time, number of rounds of tests and data storage path.
Step 5: generation test script.After test configurations are completed and are issued, test script execution module is matched somebody with somebody according to test
Confidence ceases and test case information, the selection execution test script from test script library module, and configuration testing script argument.Tool
Body, test script execution module is based on diagnostic data base generation test case and test script, is then based on examining for OBD transmissions
Disconnected request, selects corresponding test case and test script and performs from test script library module.
Step 6: collector, test execution.After testing results script, testing execution module compiler test script, and from
Dynamicization performs test, in test process, energy supply control module can be controlled to provide power supply and control to tested OBD diagnostic devices
CAN communication device sends emulation diagnostic response to tested OBD equipment.
Step 7: diagnostic result data record is analyzed.In measuring executing process, the diagnosis of OBD diagnostic devices generation is tested
Result data can be sent to master control set, testing execution module by USB interface or serial ports compares diagnostic result data automatically
With expected diagnostic result data, generate and show test result, the test result includes PASS and FAIL.
Step 8: generation test report.Diagnostic result data and result are uploaded to test and management mould by testing execution module
Block, test and management module fill in test result into test report template, automatically generate test report.
Based on same inventive concept, it is automatic that the embodiment of the present invention additionally provides a kind of network of commercial car OBD diagnostic devices
Change method of testing, it is similar to foregoing test system to solve the principle of problem by this method, therefore the implementation of this method can be with
Referring to the implementation of foregoing test system, repeat part and repeat no more.
Embodiments of the invention also provide a kind of network automatically method of testing of commercial car OBD diagnostic devices, such as Fig. 4 institutes
Show, the described method comprises the following steps：
S100, diagnosis document structure tree test configurations information and test case information based on one or more ECU, and base
Corresponding test script is generated in the test configurations information generated and the test case information；It is described diagnosis document include with
Diagnosing protocol and the diagnostic data base related ECU；
S200, the diagnosis diagnosed to the ECU sent in response to receiving the tested OBD diagnostic devices please
Ask, the test script corresponding with the diagnosis request is determined from the test script generated and performs the corresponding test pin
This, generates the diagnostic response in response to the diagnosis request, and the diagnostic response is sent into the tested OBD diagnosis and set
It is standby；The diagnosis request includes emulation CAN message data corresponding with the ECU diagnostic data bases；The diagnostic response bag
Include the emulation CAN message data corresponding with the diagnosis request；
S300, in response to receiving the diagnostic response, the tested OBD diagnostic devices solve to the diagnostic response
Analysis is handled, and obtains corresponding diagnostic result data；
S400, receive the diagnostic result data and characterized the diagnostic result data received with the diagnostic response
Default reply data be compared, and corresponding test report is generated based on comparative result.
Further, the automatic test approach that the present embodiment provides is further comprising the steps of：In the biography of the diagnostic response
During defeated, the transmission of the diagnostic response is interrupted, and interrupts the power supply to the tested OBD diagnostic devices supply.
It should be noted that if tested OBD diagnostic devices are not received by the situation of diagnostic instruction or power interruptions,
Abnormal prompt or alert process can be carried out.
Further, the diagnostic categories include one or more of following classification：ECU identifications test, information of vehicles
Read test, dynamic data readwrite tests, DTC read test, IO control and routine control test, program write with a brush dipped in Chinese ink test and
Host-host protocol is tested.
Further, the ECU identifications test includes one or more of following test case：Positive response test,
The test of negative response traversal, response timeout test and null response test；
The information of vehicles read test includes one or more of following test case：Effective codomain traversal test,
Invalid data test, the test of negative response traversal, response timeout test and null response test；The dynamic data readwrite tests
Including the traversal test of virtual value domain, the test of negative response traversal, response timeout test and null response test；
The DTC read test includes one or more of following test case：DTC traversal is tested, is invalid
DTC test, the test of negative response traversal, response timeout test and null response test；
The IO controls and routine control test include one or more of following test case：Control model traversal is surveyed
Examination, the test of control result traversal, the test of negative response traversal, response timeout test and null response test；
Described program, which writes with a brush dipped in Chinese ink test, includes one or more of following test case：Write with a brush dipped in Chinese ink flow testing, failure mode
Processing test, have secure access to test of heuristics and write with a brush dipped in Chinese ink file read test；
The host-host protocol test includes one or more of following test case：Single frames sends test, multiframe is sent
Test, multiframe receive test and time parameter test.
Above steps can be realized by foregoing each device, will not be repeated here.And in the case where not conflicting,
The feature in embodiment and embodiment in the application can be mutually combined.
Embodiment described above, it is only the embodiment of the present invention, to illustrate technical scheme, rather than
It is limited, protection scope of the present invention is not limited thereto, although having been carried out in detail to the present invention with reference to the foregoing embodiments
Illustrate, it will be understood by those within the art that：Any one skilled in the art the invention discloses
In technical scope, it can still modify to the technical scheme described in previous embodiment or can readily occur in change, or
Person carries out equivalent substitution to which part technical characteristic；And these modifications, change or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of technical scheme of the embodiment of the present invention.It should all be included within the scope of the present invention.Therefore,
Protection scope of the present invention described should be defined by scope of the claims.
Claims (9)
- A kind of 1. network automatically test system of commercial car OBD diagnostic devices, it is characterised in that including：Master control set, power supply Control device, CAN communication device and tested OBD diagnostic devices, wherein,The master control set, for the diagnostic data base file generated test configurations information based on one or more ECU and survey Example information on probation, and corresponding test script is generated based on the test configurations information generated and the test case information；With And the diagnosis diagnosed to the ECU sent in response to receiving the tested OBD diagnostic devices is asked, from what is generated Test script corresponding to tested diagnostic service is selected in test script and performs the corresponding test script, generation corresponds to described Diagnose the various diagnostic responses of request and send the diagnostic response to CAN by the CAN communication device；It is described to examine Disconnected document includes the diagnosing protocol and diagnostic data base related to the ECU, and the diagnosis request includes and the diagnostic data Corresponding emulation CAN message data in storehouse；The diagnostic response includes the emulation CAN message number corresponding with the diagnosis request According to；The power control, for controlling communication control unit and by the communication control unit to the tested OBD Diagnostic device supplies power supply；The CAN communication device, for receive it is described diagnosis request Concurrency give the master control set and by it is described diagnosis ring The tested OBD diagnostic devices should be sent to；The tested OBD diagnostic devices, for sending, diagnosis is asked to CAN and the diagnostic response to receiving parses Processing, obtains corresponding diagnostic result data；The master control set is additionally operable to, the expected results number that the diagnostic result data received and the diagnostic response are characterized According to being compared, and the test report corresponding with the diagnostic result data is generated based on comparative result.
- 2. system according to claim 1, it is characterised in that also include：Communication control unit, it is connected with the power control, the CAN communication device and the tested OBD diagnostic devices, For the instruction sent based on the master control set, optionally the power supply that the power control provides is supplied to described It is tested OBD diagnostic devices and the diagnostic response that the CAN communication device is sent optionally is sent to the tested OBD and examines Disconnected equipment.
- 3. system according to claim 2, it is characterised in that the master control set includes test and management module, test pin This execution module, test script library module and hardware controls drive module,The test and management module, for receiving the diagnosis document and being matched somebody with somebody based on the diagnosis document structure tree test received Confidence ceases and test case information, and the generation test report of the test result based on the tested OBD diagnostic devices；The test script library module, for establishing and storing the diagnostic categories diagnosed to the ECU and corresponding test Use-case；The test script execution module, for the test configurations information configured according to the test and management module and the survey Example information generation test script on probation, and the test pin corresponding with the diagnosis request is determined from the test script generated This simultaneously performs the corresponding test script, generates the diagnostic response in response to the diagnosis request；And for that will be received Diagnostic result data generate corresponding test result compared with the default reply data, and based on comparative result, and will The test result is sent to the test and management module；The hardware controls drive module, for controlling the power control and the communication control unit to be tested to described OBD diagnostic devices provide power supply and the control CAN communication device receives the diagnosis that the tested OBD diagnostic devices are sent and asked Sum and send the diagnostic response to the tested OBD diagnostic devices.
- 4. system according to claim 3, it is characterised in that the diagnostic categories include one or more in following classification It is individual：ECU identifications test, information of vehicles read test, dynamic data readwrite tests, DTC read test, IO control and routine Test and host-host protocol test are write with a brush dipped in Chinese ink in control test, program.
- 5. system according to claim 4, it is characterised in that the ECU identifications test is included in following test case It is one or more：Positive response test, the test of negative response traversal, response timeout test and null response test；The information of vehicles read test includes one or more of following test case：Effective codomain traversal is tested, is invalid Data test, the test of negative response traversal, response timeout test and null response test；The dynamic data readwrite tests includes Effective codomain traversal test, the test of negative response traversal, response timeout test and null response test；The DTC read test includes one or more of following test case：The test of DTC traversal, invalid failures Code test, the test of negative response traversal, response timeout test and null response test；The IO controls and routine control test include one or more of following test case：The test of control model traversal, The test of control result traversal, the test of negative response traversal, response timeout test and null response test；Described program, which writes with a brush dipped in Chinese ink test, includes one or more of following test case：Write with a brush dipped in Chinese ink flow testing, failure mode processing Test, have secure access to test of heuristics and write with a brush dipped in Chinese ink file read test；The host-host protocol test includes one or more of following test case：Single frames sends test, multiframe sends test, Multiframe receives test and time parameter test.
- A kind of 6. network automatically method of testing of commercial car OBD diagnostic devices, it is characterised in that including：Diagnosis document structure tree test configurations information and test case information based on one or more ECU, and be based on being generated Test configurations information and the test case information generate corresponding test script；The diagnosis document includes and the ECU Related diagnosing protocol and diagnostic data base；The diagnosis diagnosed to the ECU sent in response to receiving the tested OBD diagnostic devices is asked, from being generated Test script in determine and the corresponding test script of the diagnosis request and perform the corresponding test script, generate and respond In the diagnostic response of the diagnosis request, and the diagnostic response is sent to the tested OBD diagnostic devices；The diagnosis please Ask including emulation CAN message data corresponding with the diagnostic data base；The diagnostic response includes asking with the diagnosis Corresponding emulation CAN message data；In response to receiving the diagnostic response, the tested OBD diagnostic devices carry out dissection process to the diagnostic response, obtained To corresponding diagnostic result data；Receive the diagnostic result data and by the diagnostic result data received and the diagnostic response characterized it is default should Answer evidence is compared, and generates corresponding test report based on comparative result.
- 7. according to the method for claim 6, it is characterised in that also include：In the transmitting procedure of the diagnostic response, the transmission of the diagnostic response is interrupted, and interrupts and is examined to the tested OBD The power supply of disconnected equipment supply.
- 8. according to the method for claim 6, it is characterised in that the diagnostic categories include one or more in following classification It is individual：ECU identifications test, information of vehicles read test, dynamic data readwrite tests, DTC read test, IO control and routine Test and host-host protocol test are write with a brush dipped in Chinese ink in control test, program.
- 9. according to the method for claim 8, it is characterised in that the ECU identifications test is included in following test case It is one or more：Positive response test, the test of negative response traversal, response timeout test and null response test；The information of vehicles read test includes one or more of following test case：Effective codomain traversal is tested, is invalid Data test, the test of negative response traversal, response timeout test and null response test；The dynamic data readwrite tests includes Effective codomain traversal test, the test of negative response traversal, response timeout test and null response test；The DTC read test includes one or more of following test case：The test of DTC traversal, invalid failures Code test, the test of negative response traversal, response timeout test and null response test；The IO controls and routine control test include one or more of following test case：The test of control model traversal, The test of control result traversal, the test of negative response traversal, response timeout test and null response test；Described program, which writes with a brush dipped in Chinese ink test, includes one or more of following test case：Write with a brush dipped in Chinese ink flow testing, failure mode processing Test, have secure access to test of heuristics and write with a brush dipped in Chinese ink file read test；The host-host protocol test includes one or more of following test case：Single frames sends test, multiframe sends test, Multiframe receives test and time parameter test.
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