CN107659465A - The examination device and investigation method of a kind of vehicle CAN erroneous frame - Google Patents
The examination device and investigation method of a kind of vehicle CAN erroneous frame Download PDFInfo
- Publication number
- CN107659465A CN107659465A CN201710823498.5A CN201710823498A CN107659465A CN 107659465 A CN107659465 A CN 107659465A CN 201710823498 A CN201710823498 A CN 201710823498A CN 107659465 A CN107659465 A CN 107659465A
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- Prior art keywords
- erroneous frame
- network segment
- control device
- line control
- investigation method
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
Abstract
The invention provides a kind of examination device of vehicle CAN erroneous frame and investigation method, it is related to erroneous frame detection field.The investigation method includes：When detecting erroneous frame in CAN, it is determined that detecting the erroneous frame network segment；The network segment primary attribute of the erroneous frame network segment is obtained, and judges whether the network segment primary attribute of the erroneous frame network segment meets preparatory condition；When the network segment primary attribute of the erroneous frame network segment is unsatisfactory for the preparatory condition, the network segment primary attribute of the erroneous frame network segment is prompted to make a mistake.The present invention can improve the efficiency that erroneous frame is investigated, so as to shorten the vehicle R＆D cycle by complete, system investigation method.
Description
Technical field
The present invention relates to erroneous frame to investigate technical field, and in particular to a kind of examination device of vehicle CAN erroneous frame
And investigation method.
Background technology
Social now, often there are many failure problems during the manufacturing in automobile.At present, arranged in complete vehicle fault
During looking into, the in general investigation method investigation cycle is long, and it is bigger to search the difficulty of basic reason, if investigation is too late
When, the problem of CAN erroneous frame not only results in real-time communication difference, various communication class failures can be also reported, are even resulted in
CAN can not work.Therefore, the examination device and investigation method of a kind of vehicle CAN erroneous frame, the row of can solve the problem that are needed badly
Cycle length is looked into, the problem of basic reason difficulty is big is searched, so as to shorten the vehicle R＆D cycle.
The content of the invention
The embodiment of the present invention provides the examination device and investigation method of a kind of vehicle CAN erroneous frame, it is therefore an objective to improves
The efficiency of erroneous frame investigation, so as to shorten the vehicle R＆D cycle.
To achieve the above object, the embodiments of the invention provide a kind of investigation method of vehicle CAN erroneous frame, bag
Include：
When detecting erroneous frame in CAN, it is determined that detecting the erroneous frame network segment of the erroneous frame；
The network segment primary attribute of the erroneous frame network segment is obtained, and judges whether the network segment primary attribute of the erroneous frame network segment is full
Sufficient preparatory condition；
When the network segment primary attribute of the erroneous frame network segment is unsatisfactory for the preparatory condition, the erroneous frame network segment is prompted
Network segment primary attribute make a mistake.
Preferably, the network segment primary attribute is included with least one of properties：The terminal load of the network segment；On the network segment
Whether short circuit is occurred.
Preferably, when the network segment primary attribute of the erroneous frame network segment meets the preparatory condition, the investigation method
Also include：
Obtain on the erroneous frame network segment with the presence or absence of the Off-line control device for having off-line state；
When there are Off-line control device, following judgement processing is performed respectively to each Off-line control device：
Whether detection Off-line control device accesses CAN；
When Off-line control device has accessed CAN, judge whether the Off-line control device sends erroneous frame；
When the Off-line control device does not make a mistake frame, whether the wire harness annexation for detecting the Off-line control device is normal；
When the wire harness annexation of the Off-line control device is abnormal, prompts the hardware connection of the Off-line control device to exist and ask
Topic.
Preferably, the wire harness annexation of the Off-line control device it is abnormal including：The wire harness of the Off-line control device connects
At least one of virtual connection, misconnection, short circuit in connecing be present.
Preferably, after the judgement processing has been performed to each Off-line control device, do not find wire harness annexation be present
During abnormal Off-line control device, the investigation method also includes：
Controller in CAN is removed one by one, and after one controller of every removal, it is total to detect the CAN
Whether erroneous frame is also there are on line, if being not detected by erroneous frame, the controller is accessed into CAN again, and examine again
Survey in the CAN and whether also there are erroneous frame, if detecting erroneous frame, prompt the controller to cause CAN to go out
Existing erroneous frame.
Preferably, in investigation method described above：
If when whether also there are erroneous frame on detecting the CAN again, erroneous frame is not detected by, then continues to move
Except next controller in CAN；
If erroneous frame is also there are after all controllers in CAN have removed, in the CAN, then
All controllers are accessed into CAN again, and obtains CAN waveform and carries out analysis of electromagnetic interference, electromagnetism is obtained and does
Disturb analysis result；
When analysis of electromagnetic interference result instruction has electromagnetic interference, CAN is prompted electromagnetic interference to be present.
Preferably, in investigation method described above：
When electromagnetic interference is not present in analysis of electromagnetic interference result instruction, the waveform of each controller is obtained respectively simultaneously
The waveform is analyzed to CAN with the presence or absence of interference；
When interference being present, prompting the controller CAN to be present and disturbing.
The embodiment of the present invention additionally provides a kind of examination device of entire car controller local area network (LAN) CAN bus error frame, including：
Memory, processor and storage on a memory and the computer program that can run on a processor, the computing device institute
Realized when stating computer program, as mentioned the step in the investigation method of vehicle CAN erroneous frame.
Compared with prior art, a kind of examination device of vehicle CAN erroneous frame provided in an embodiment of the present invention and row
Checking method, at least have the advantages that：
When detecting erroneous frame in CAN, it is determined that detecting the erroneous frame network segment of the erroneous frame；Obtain erroneous frame
The network segment primary attribute of the network segment, and judge whether the network segment primary attribute of the erroneous frame network segment meets preparatory condition；Described
When the network segment primary attribute of the erroneous frame network segment is unsatisfactory for the preparatory condition, the network segment primary attribute of the erroneous frame network segment is prompted
Make a mistake, in whole perfect investigation method, the efficiency of erroneous frame investigation can be improved, so as to shorten vehicle research and development week
Phase.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the investigation method of vehicle CAN erroneous frame provided in an embodiment of the present invention.
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.In the following description, there is provided such as specific configuration and the specific detail of component are only
In order to help comprehensive understanding embodiments of the invention.Therefore, it will be apparent to those skilled in the art that can be to reality described herein
Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, eliminate pair
The description of known function and construction.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is relevant with embodiment
During special characteristic, structure or characteristic are included at least one embodiment of the present invention.Therefore, occur everywhere in entire disclosure
" in one embodiment " or " in one embodiment " identical embodiment is not necessarily referred to.In addition, these specific feature, knots
Structure or characteristic can combine in one or more embodiments in any suitable manner.
In various embodiments of the present invention, it should be appreciated that the size of the sequence number of following each processes is not meant to perform suitable
The priority of sequence, the execution sequence of each process should be determined with its function and internal logic, without the implementation of the reply embodiment of the present invention
Process forms any restriction.
The embodiments of the invention provide a kind of full-vehicle control LAN (CAN, Controller Area Network) bus
The investigation method of erroneous frame, refer to Fig. 1, and this method includes：
Step 1, when detecting erroneous frame in vehicle CAN, it is determined that detecting the erroneous frame network segment of the erroneous frame.
Step 2, the network segment primary attribute of the erroneous frame network segment is obtained, and judges the network segment primary attribute of the erroneous frame network segment
Whether preparatory condition is met；When the network segment primary attribute of the erroneous frame network segment meets preparatory condition, into step 3；Institute
When stating the network segment primary attribute of the erroneous frame network segment and being unsatisfactory for the preparatory condition, the network segment basis category of the erroneous frame network segment is prompted
Property makes a mistake, and investigation terminates.
In step 2, the network segment primary attribute is included with least one of properties：The terminal load of the network segment；Net
Whether short circuit occurs in section.
Step 3, obtain on the erroneous frame network segment with the presence or absence of the Off-line control device for having off-line state；If there is Off-line control
Device, then into step 4.
Step 4, when there are Off-line control device, whether the wire harness annexation for detecting the Off-line control device is normal；
When the wire harness annexation of the Off-line control device is normal, into step 5；It is abnormal in the wire harness annexation of the Off-line control device
When, prompt the hardware of the Off-line control device to connect and problem be present, investigation terminates.
Step 5, when not finding to exist the abnormal Off-line control device of wire harness annexation, by the controller in CAN
Removed one by one, and after one controller of every removal, detect whether also there are erroneous frame in the CAN, if not
Erroneous frame is detected, then the controller is accessed into CAN again, and detects whether also there are in the CAN again
Erroneous frame, if being not detected by erroneous frame, continue to remove next controller in CAN；If detecting erroneous frame, carry
Show that the controller causes CAN erroneous frame occur, investigation terminates.
Step 6, if after all controllers in CAN have removed, erroneous frame is also there are in the CAN
When, then all controllers are accessed into CAN again, and obtain CAN waveform and carry out analysis of electromagnetic interference, obtain electricity
Magnetic disturbance analysis result；When electromagnetic interference is not present in analysis of electromagnetic interference result instruction, into step 7；In the electricity
When the instruction of magnetic disturbance analysis result has electromagnetic interference, CAN is prompted electromagnetic interference to be present, investigation terminates.
Step 7, when electromagnetic interference is not present in analysis of electromagnetic interference result instruction, each controller is obtained respectively
Waveform simultaneously analyzes the waveform to CAN with the presence or absence of interference；When interference be present, the controller is prompted CAN to be present
Interference, investigation terminate.
The embodiment of the present invention additionally provides a kind of vehicle (CAN, Controller Area Network) bus error frame
Examination device, including：Memory, processor and storage on a memory and the computer program that can run on a processor, institute
The step in the investigation method of vehicle CAN erroneous frame as mentioned is realized when stating computer program described in computing device.
From described above as can be seen that a kind of examination device of vehicle CAN erroneous frame provided in an embodiment of the present invention
And investigation method, the efficiency that erroneous frame is investigated can be improved, so as to shorten the vehicle R＆D cycle.
In the above embodiment of the present invention, following judgement processing is performed respectively to each Off-line control device in step 4：
Whether step S1, detection Off-line control device access CAN.
Step S2, when Off-line control device has accessed CAN, judge whether the Off-line control device sends erroneous frame.
Step S3, when the Off-line control device does not make a mistake frame, detecting the wire harness annexation of the Off-line control device is
It is no normal.
In step s3, the wire harness annexation of the Off-line control device it is abnormal including：The line of the Off-line control device
At least one of virtual connection, misconnection, short circuit be present in beam connection.
The embodiment of the present invention additionally provides the investigation method of another vehicle CAN erroneous frame, including：
Step XI, detect that the special network segment of special operation condition occurs in erroneous frame.
Step X2, obtain the physics waveform of the special network segment and carry out analysis of electromagnetic interference, obtain analysis of electromagnetic interference
As a result.
Step X3, when analysis of electromagnetic interference result instruction has electromagnetic interference, prompt CAN electromagnetism to be present and do
Disturb, investigation terminates.
Step X4, when electromagnetic interference is not present in analysis of electromagnetic interference result instruction, is judged according to physics waveform, examined
Whether the wire harness annexation for surveying the Off-line control device is normal.
Step X5, if the wire harness annexation of the Off-line control device is abnormal, the hardware of the Off-line control device is prompted to connect
Problem be present, investigation terminates；If the wire harness annexation of the Off-line control device is normal, by the wrong frame condition with it is similar other
Sample car compares, if individual example, can change overall wire sheaves.
In step XI, the special operation condition needs very to reappear erroneous frame.
In step X4, the wire harness annexation of the Off-line control device it is abnormal including：The line of the Off-line control device
At least one of virtual connection, misconnection, short circuit be present in beam connection.
In summary, the embodiment of the present invention can improve the efficiency of erroneous frame investigation, so as to shorten the vehicle R＆D cycle.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
- A kind of 1. investigation method of entire car controller local area network (LAN) CAN bus error frame, it is characterised in that including：When detecting erroneous frame in CAN, it is determined that detecting the erroneous frame network segment of the erroneous frame；Obtain the erroneous frame network segment network segment primary attribute, and judge the erroneous frame network segment network segment primary attribute whether meet it is pre- If condition；When the network segment primary attribute of the erroneous frame network segment is unsatisfactory for the preparatory condition, the net of the erroneous frame network segment is prompted Section primary attribute makes a mistake.
- 2. investigation method as claimed in claim 1, it is characterised in that the network segment primary attribute include with properties extremely Few one kind：The terminal load of the network segment；Whether short circuit occurs on the network segment.
- 3. investigation method as claimed in claim 1, it is characterised in that meet in the network segment primary attribute of the erroneous frame network segment During the preparatory condition, the investigation method also includes：Obtain on the erroneous frame network segment with the presence or absence of the Off-line control device for having off-line state；When there are Off-line control device, following judgement processing is performed respectively to each Off-line control device：Whether detection Off-line control device accesses CAN；When Off-line control device has accessed CAN, judge whether the Off-line control device sends erroneous frame；When the Off-line control device does not make a mistake frame, whether the wire harness annexation for detecting the Off-line control device is normal；When the wire harness annexation of the Off-line control device is abnormal, prompts the hardware of the Off-line control device to connect and problem be present.
- 4. investigation method as claimed in claim 3, it is characterised in that the wire harness annexation of the Off-line control device is abnormal Including：At least one of virtual connection, misconnection, short circuit be present in the wire harness connection of the Off-line control device.
- 5. investigation method as claimed in claim 3, it is characterised in that performed to each Off-line control device at the judgement After reason, when not finding to exist the abnormal Off-line control device of wire harness annexation, the investigation method also includes：Controller in CAN is removed one by one, and after one controller of every removal, detected in the CAN Whether erroneous frame is also there are, if being not detected by erroneous frame, the controller is accessed into CAN again, and detect institute again State and whether also there are erroneous frame in CAN, if detecting erroneous frame, prompt the controller to cause CAN to occur wrong Frame by mistake.
- 6. investigation method as claimed in claim 5, it is characterised in thatIf when whether also there are erroneous frame on detecting the CAN again, erroneous frame is not detected by, then continues to remove Next controller in CAN；If erroneous frame is also there are after all controllers in CAN have removed, in the CAN, then by institute There is controller to access CAN again, and obtain CAN waveform and carry out analysis of electromagnetic interference, obtain electromagnetic interference point Analyse result；When analysis of electromagnetic interference result instruction has electromagnetic interference, CAN is prompted electromagnetic interference to be present.
- 7. investigation method as claimed in claim 6, it is characterised in thatWhen electromagnetic interference is not present in analysis of electromagnetic interference result instruction, waveform and the analysis of each controller are obtained respectively The waveform is to CAN with the presence or absence of interference；When interference being present, prompting the controller CAN to be present and disturbing.
- A kind of 8. examination device of entire car controller local area network (LAN) CAN bus error frame, it is characterised in that including：Memory, processing Device and storage on a memory and the computer program that can run on a processor, computer program described in the computing device Step in the investigation method of vehicle CAN erroneous frame as described in any one of Shi Shixian such as claim 1~7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823498.5A CN107659465B (en) | 2017-09-13 | 2017-09-13 | Device and method for checking error frames of CAN (controller area network) bus of whole vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823498.5A CN107659465B (en) | 2017-09-13 | 2017-09-13 | Device and method for checking error frames of CAN (controller area network) bus of whole vehicle |
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| CN107659465A true CN107659465A (en) | 2018-02-02 |
| CN107659465B CN107659465B (en) | 2020-06-23 |
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Cited By (7)
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| CN109738722A (en) * | 2018-12-29 | 2019-05-10 | 中国重汽集团济南动力有限公司 | A kind of localization method carrying out electromagnetic interference source in vehicle based on CAN bus data |
| CN111462353A (en) * | 2020-03-30 | 2020-07-28 | 北京经纬恒润科技有限公司 | Gateway-based method and system for recording information of whole vehicle |
| CN111665821A (en) * | 2020-06-08 | 2020-09-15 | 重庆长安汽车股份有限公司 | Error frame checking method based on vehicle diagnosis service |
| CN112003774A (en) * | 2020-07-22 | 2020-11-27 | 东风汽车集团有限公司 | Method, system and storage medium for checking error frame of automobile CAN bus |
| CN112193072A (en) * | 2020-09-29 | 2021-01-08 | 奇瑞新能源汽车股份有限公司 | Method for checking error frames of CAN (controller area network) bus of electric vehicle |
| CN112964956A (en) * | 2021-03-19 | 2021-06-15 | 潍柴动力股份有限公司 | Method and device for detecting electromagnetic interference of vehicle |
| CN115242609A (en) * | 2022-07-13 | 2022-10-25 | 东风越野车有限公司 | Whole vehicle CAN bus fault frame analysis method and device and vehicle |
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| CN109738722B (en) * | 2018-12-29 | 2021-07-02 | 中国重汽集团济南动力有限公司 | Method for positioning electromagnetic interference source in vehicle based on CAN bus data |
| CN111462353A (en) * | 2020-03-30 | 2020-07-28 | 北京经纬恒润科技有限公司 | Gateway-based method and system for recording information of whole vehicle |
| CN111665821A (en) * | 2020-06-08 | 2020-09-15 | 重庆长安汽车股份有限公司 | Error frame checking method based on vehicle diagnosis service |
| CN112003774A (en) * | 2020-07-22 | 2020-11-27 | 东风汽车集团有限公司 | Method, system and storage medium for checking error frame of automobile CAN bus |
| CN112003774B (en) * | 2020-07-22 | 2021-12-14 | 东风汽车集团有限公司 | Method, system and storage medium for checking error frame of automobile CAN bus |
| CN112193072A (en) * | 2020-09-29 | 2021-01-08 | 奇瑞新能源汽车股份有限公司 | Method for checking error frames of CAN (controller area network) bus of electric vehicle |
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| CN112964956A (en) * | 2021-03-19 | 2021-06-15 | 潍柴动力股份有限公司 | Method and device for detecting electromagnetic interference of vehicle |
| CN115242609A (en) * | 2022-07-13 | 2022-10-25 | 东风越野车有限公司 | Whole vehicle CAN bus fault frame analysis method and device and vehicle |
| CN115242609B (en) * | 2022-07-13 | 2023-10-20 | 东风越野车有限公司 | Whole vehicle CAN bus fault frame analysis method and device and vehicle |
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