CN106557083B - The error code recording method of vehicle electrically controlling unit and vehicle electrically controlling unit - Google Patents
The error code recording method of vehicle electrically controlling unit and vehicle electrically controlling unit Download PDFInfo
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- CN106557083B CN106557083B CN201510633966.3A CN201510633966A CN106557083B CN 106557083 B CN106557083 B CN 106557083B CN 201510633966 A CN201510633966 A CN 201510633966A CN 106557083 B CN106557083 B CN 106557083B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- 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
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- 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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
A kind of error code recording method of vehicle electrically controlling unit, includes the following steps：S1：Electronic control unit carries out fault detect；S2：Electronic control unit judges the failure detected according to the correspondence between failure；S3：If it is determined that occurring major error simultaneously and from failure, electronic control unit only records the error code of the major error, does not record the error code from failure, wherein major error and has implicated relationship from failure, when major error occurs, can involve simultaneously and cause from failure.Further, which further includes step S4：If it is determined that there is the sub- failure below female failure, electronic control unit records error code of the error code of mother's failure without recording the sub- failure, wherein there is inclusion relation, female failure multiple sub- failures are included below for female failure and sub- failure.Above-mentioned error code recording method, it is contemplated that the necessity of relevance and fault setting between failure solves the problems, such as that error code repeats more reports.
Description
Technical field
The present invention relates to the technical field of automotive electronics and vehicle diagnosis, especially a kind of vehicle electrically controlling unit and its failure
Code recording method.
Background technology
Vehicle diagnosis is ECU (Electronic Control Unit, electronic control unit, or device, the section in order to control of vehicle
Point) monitor itself working condition, detection controller input/output port in real time in normal work, once find that failure can incite somebody to action
The memory that DTC (Diagnostic Trouble Code, diagnostic trouble code) and other failure diagnosis informations deposit controller carry
In, while deciding whether to light trouble lamp according to the weight grade of failure.Alarm lamp is lighted if necessary, then passes through network
Signal is issued into instrument board, lights alarm lamp, prompts driver's on-call maintenance and maintenance.
Currently, main engine plants are in order to facilitate later stage malfunction elimination, by car fault diagnosis information define very in detail, such as will
Network failure is divided into CAN Bus off failures, message dropping failure etc.；ECU internal faults be divided into EEPROM failures, ROM fault,
AD/DA failures etc.；Message dropping failure is divided into first frame message dropping, the second frame message dropping, third frame message dropping etc..
However, the definition method of above-mentioned car fault diagnosis information, checks on for the reasonability and necessity of fault setting
It is not in place, the particularity of failure setting and the necessity of fault setting are not accounted for, can cause a failure cause that will cause more
A error code occurs, and puzzlement is brought to driver and maintenance personal.
Invention content
The purpose of the present invention is to provide a kind of vehicle electrically controlling unit and its error code recording methods, to solve the prior art
In the presence of error code the problem of repeating more report.
The embodiment of the present invention provides a kind of error code recording method of vehicle electrically controlling unit, includes the following steps：
S1：Electronic control unit carries out fault detect；
S2：Electronic control unit judges the failure detected according to the correspondence between failure；
S3：If it is determined that occurring major error simultaneously and from failure, electronic control unit only records the error code of the major error, does not record
The error code from failure wherein major error and from failure there is implicated relationship can involve initiation simultaneously when major error occurs
From failure.
Further, which further includes step：
S4：If it is determined that there is the sub- failure below female failure, electronic control unit records the error code of mother's failure without recording
The error code of the sub- failure, wherein there is inclusion relation, female failure multiple sub- failures are included below for female failure and sub- failure.
Further, which further includes step：
S5：If it is determined that the failure occurred belongs to other failure situations, electronic control unit records broken down error code.
Further, step S5 includes：It should be from failure without there is major error, electronic control unit record from failure if occurring
Error code.
The embodiment of the present invention also provides a kind of vehicle electrically controlling unit, including：
Fault detection module, for carrying out fault detect；
Fault relationship setup module, for the correspondence between failure to be arranged；
Fault determination module, for being judged the failure detected according to the correspondence between failure；
Fault logging module, in judgement while major error occur and when from failure, only record the failure of the major error
Code, does not record the error code from failure, wherein major error and has implicated relationship from failure, can be together when major error occurs
When involve initiation from failure.
Further, which is additionally operable to, and when judging to occur the sub- failure below female failure, records the mother
Error code of the error code of failure without recording the sub- failure, wherein female failure and sub- failure have an inclusion relation, under female failure
Bread contains multiple sub- failures.
Further, which is additionally operable to, when there are other failures in judgement, the broken down event of record
Hinder code.
Further, which is specifically used for, when judgement occurs from failure without there is major error, note
Record the error code from failure.
The error code recording method of vehicle electrically controlling unit provided in an embodiment of the present invention, each electronic control unit are carrying out failure
When diagnosis, the above-mentioned major error with implicated relationship need to only be added in original fault judgment method and from failure and above-mentioned tool
There is the judgment step of the female failure and sub- failure of inclusion relation, which considers the association between failure
Property and fault setting necessity, multiple error code can be caused to occur to avoid a failure cause, solve error code repetition
The problem of more reports, it can not only ensure that maintenance personal quickly investigates failure, also reduce and puzzlement is brought to driver.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the decision flow chart of the error code recording method of vehicle electrically controlling unit in the embodiment of the present invention.
Fig. 2 is the function structure chart of vehicle electrically controlling unit in the embodiment of the present invention.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, it is as follows that the present invention is described in detail.
In order to reinforce automobile competitiveness, after-sale service quality is improved, automobile vendor defines car fault diagnosis information
More and more in detail so that after-sales service personnel can fast and accurately carry out malfunction elimination, to find failure cause.But
It is comprehensive in order to define failure diagnosis information, it tends to ignore to fall certain design details, error code is caused to repeat more reports, one
Failure cause will cause multiple error code to occur, and puzzlement is brought to driver and maintenance personal.The embodiment of the present invention provides one
Kind vehicle electrically controlling unit and its error code recording method, to solve the problems, such as that above-mentioned error code repeats more reports.
Fig. 1 is the decision flow chart of the error code recording method of vehicle electrically controlling unit in the embodiment of the present invention, please join Fig. 1,
The error code recording method includes：
S1：Electronic control unit carries out fault detect.
Specifically, electronic control unit can be the various ECU (controller) in vehicle, such as engine controller, clutch
Controller, gearbox control etc..Each controller monitors itself working condition in real time in normal work, detects controller
Input/output port, to carry out fault detect.Electronic control unit, can be by the preset time interval period when carrying out fault detect
Property carry out, such as at regular intervals carry out primary fault detection, can also carry out according to other setting means, not do herein
It limits.Herein, the step of fault detect can with it is existing identical, this will not be repeated here.When detecting failure, S2 is entered step.
S2：Electronic control unit judges the failure detected according to the correspondence between failure.
In the present invention, for the major error with implicated relationship and female failure from failure and with inclusion relation and
Sub- failure establishes correspondence respectively, and is preset in electronic control unit.When electronic control unit detects failure, according to failure
Between correspondence, then carry out the record storage of error code, reach and error code is avoided to repeat more reports.Wherein, major error and from
Failure has implicated relationship, refers to that will necessarily involve initiation simultaneously from failure when major error occurs；Female failure and sub- failure tool
There is inclusion relation, refers to that multiple sub- failures are included below in female failure.
The major error with implicated relationship and the mapping table from failure that table one is citing below.
One major error of table and from the mapping table between failure
| Major error | From failure | |
| 1 | CAN Bus off failures | Message dropping failure |
| 2 | Message dropping failure | Invalid data failure |
| 3 | …… | …… |
In Table 1, CAN Bus off failures and message dropping failure constitute major error and the implicated relationship from failure,
CAN Bus off failures are major error, and message dropping failure is from failure, when there are CAN Bus off failures, also meeting simultaneously
Involve and causes message dropping failure；Message dropping failure and invalid data failure constitute major error and the implicated relationship from failure,
Message dropping failure is major error, and invalid data failure is that, when there is message dropping failure failure, can also be led simultaneously from failure
Even cause invalid data failure.
Table two is the mapping table of the female failure and sub- failure with inclusion relation of citing below.
Mapping table between the female failure of table two and sub- failure
In table two, ECU internal faults are female failures, and ECU internal faults be included below EEPROM failures, ROM fault,
Multiple sub- failures such as AD/DA failures；Message dropping failure is female failure, and message dropping failure is included below first frame message and loses
Lose multiple sub- failures such as failure, the second frame message dropping failure, third frame message dropping failure.
Correspondence between the failure established in above-mentioned table one and table two, can be preset in electronic control unit, with power supply
Unit is controlled when detecting failure, according to the correspondence between the failure established, the failure detected is judged, so
Error code recording strategy (joining in detail following) according to the present invention carries out the record of error code afterwards.
For each failure of electronic control unit, either major error, from failure, female failure, sub- failure or other failures,
There are one corresponding error code for distribution.That is, for above-mentioned CAN Bus off failures, message dropping failure, nothing
Imitate data fault, ECU internal faults, EEPROM failures, ROM fault, AD/DA failures, first frame message dropping failure, the second frame
Message dropping failure and third frame message dropping failure, there are one corresponding error code for each distribution.
S3：If it is determined that occurring major error simultaneously and from failure, electronic control unit only records the error code of the major error, does not record
The error code from failure.
When in the failure that detects of electronic control unit judgement while there is major error and when from failure, electronic control unit only records this
The error code of major error does not record the error code from failure.
As above-mentioned, CAN Bus off failures have implicated relationship with message dropping failure, former when there are CAN Bus off
When barrier, it can also involve simultaneously and cause message dropping failure.I.e. when a node (A nodes) by bus (CAN Bus) to another
When node (B node) sends message, when the bus breaks down, communication abnormality in bus will necessarily cause B node can not be just
The message that A nodes are sent, the message dropping of A nodes are often received, B node will be detected simultaneously by CAN Bus off failures and message
Failure (A node messages loss) is lost, but basic reason is that CAN Bus off failures occur, as long as solving CAN Bus off
Failure is while solving message dropping failure.In the present invention, electronic control unit if it is determined that occur simultaneously CAN Bus off failures and
When message dropping failure, electronic control unit only records the error code of CAN Bus off failures (major error), and no longer recorded message is lost
The error code of failure (from failure), to avoid more report error code are repeated.
As above-mentioned, message dropping failure also has implicated relationship with invalid data failure, former when there is message dropping failure
When barrier, it can also involve simultaneously and cause invalid data failure.For example C nodes go wrong after leading to message dropping, D nodes are in network
The message of C nodes will be can't see, and there are one strategies in network design, when a node does not receive the message of another node
When, virtual value will be substituted with default value, i.e., D nodes substitute the C node messages that should be received originally with a default value at this time, and
Default value may be an invalid packet, can detect to obtain message dropping failure that (C node messages are lost simultaneously so as to cause D nodes
Lose) and invalid data error code (D node datas failure), but basic reason is that message dropping failure occurred, as long as solving
Message dropping failure is while solving invalid data failure.In the present invention, electronic control unit is lost if it is determined that occurring message simultaneously
When losing failure and invalid data failure, electronic control unit recorded message loses the error code of failure (major error), does not re-record nothing
The error code for imitating data fault (from failure), to avoid more report error code are repeated.
S4：If it is determined that there is the sub- failure below female failure, electronic control unit records the error code of mother's failure without recording
The error code of the sub- failure.
When occurring the sub- failure below female failure in the failure that electronic control unit judgement detects, electronic control unit does not record this
The error code of sub- failure, and directly record the error code of mother's failure.
As above-mentioned, ECU internal faults are divided into multiple sons such as EEPROM failures, ROM fault, AD/DA failures in detail below
Failure.When there is any one sub- failure below ECU internal faults, either EEPROM failures, ROM fault or AD/
DA failures, main engine plants and maintenance store can not all dismantle ECU processing, can only replace exemplar.In the present invention, electronic control unit
If it is determined that when there is the sub- failure of one or more of EEPROM failures, ROM fault, AD/DA failures, electronic control unit is not remembered one by one
The corresponding error code of sub- failure such as EEPROM failures, ROM fault, AD/DA failures are recorded, but only records one and represents inside ECU
There is female error code (i.e. the error code of ECU internal faults) of failure, to avoid more report error code are repeated.
As above-mentioned, message dropping failure is divided into first frame message dropping failure, the event of the second frame message dropping in detail below
Multiple sub- failures such as barrier, third frame message dropping failure.When detecting the sub- failures of one or more below message dropping failure
When, without being divided into multiple son events such as first frame message dropping failure, the second frame message dropping failure, third frame message dropping failure
Barrier code is recorded one by one, only need to record a female error code for representing message dropping.Such as with EMS (Engine
Manegement System, engine management controller) for, usually maximum only 8 bytes of a frame message, and EMS nodes
The message that tens bytes may be sent needs to be divided into EMS1, EMS2, EMS3 etc..Regardless of being that EMS1 loses, EMS2 loses
It loses or EMS3 loses, all sum up this controller for EMS and go wrong, investigation failure need to be only gone from EMS itself.This
It is not to distinguish one by one when detecting the sub- failure of one or more of EMS1 loss, EMS2 loss, EMS3 loss in invention
Record error code (the Lost communication with for the sub- failures such as EMS1 loses, EMS2 loses, EMS3 loses
EMS1message、Lost communication with EMS2message、Lost communication with
EMS3message), but a female error code (Lost communication with for representing message dropping is only recorded
EMS), error code are reported to avoid repetition.
Table three is used to illustrate the error code note that electronic control unit is directed to female failure and sub- failure with inclusion relation below
Record mode.
Table three has female failure of inclusion relation and the error code record of sub- failure
That is, in the prior art, one or more below electronic control unit detects ECU internal faults is former
When hindering (EEPROM failures, ROM fault, AD/DA failures), electronic control unit records the error code of this little failure one by one respectively；When
Electronic control unit detects one or more sub- failure (first frame message dropping failure, the second frame report below message dropping failure
Text loses failure, third frame message dropping failure) when, electronic control unit is also to record the error code of this little failure one by one respectively.
But in the present invention, when one or more sub- failures below electronic control unit detects ECU internal faults, electronic control unit note
What is recorded is the error code of ECU internal faults (female failure), i.e., only records an error code, be no longer to record this little failure one by one
Error code；Similarly, when one or more sub- failures below electronic control unit detects message dropping failure, electronic control unit note
What is recorded is the error code of message dropping failure (female failure), i.e., only records an error code, is no longer to record this little event one by one
The error code of barrier.
S5：If it is determined that the failure occurred belongs to other failure situations, electronic control unit records broken down error code.
(it is not belonging to the feelings in step S3, S4 when the failure that electronic control unit judgement detects belongs to other failure situations
Shape), electronic control unit then records broken down corresponding error code.For example, when if electronic control unit judgement individually occurs from failure
(occurring from failure without there is major error), electronic control unit then records the error code from failure.
It uses table four to illustrate electronic control unit below to be directed to the major error with implicated relationship and from the error code of failure remember
Record mode.
Table four has the major error of implicated relationship and is recorded from the error code of failure
That is, in the prior art, when electronic control unit is detected simultaneously by CAN Bus off failures and message dropping event
When barrier, electronic control unit records the error code of the error code and message dropping failure of CAN Bus off failures respectively.But in this hair
In bright, when electronic control unit is detected simultaneously by CAN Bus off failures and message dropping failure with implicated relationship, automatically controlled list
Member only records the error code of major error, that is, CAN Bus off failures, does not re-record from the failure i.e. error code of message dropping failure.
In the prior art, when electronic control unit is detected simultaneously by message dropping failure and invalid data failure, automatically controlled list
Member difference recorded message loses the error code of the error code and invalid data failure of failure.But in the present invention, when automatically controlled list
When member is detected simultaneously by message dropping failure and invalid data failure with implicated relationship, electronic control unit only records major error i.e.
The error code of message dropping failure does not re-record from the failure i.e. error code of invalid data failure.
In addition, in the present invention, if electronic control unit detects that invalid data failure (i.e. from failure) individually occurs (not send out
Raw message dropping failure, i.e., that major error does not occur), electronic control unit still can record the event from failure (invalid data failure)
Hinder code.
In the present invention, each electronic control unit need to only be added when carrying out fault diagnosis in original fault judgment method
The above-mentioned major error with implicated relationship and the judgment step from failure and above-mentioned female failure and sub- failure with inclusion relation
, which considers the necessity of relevance and fault setting between failure, can to avoid one therefore
Barrier reason causes multiple error code to occur, and solves the problems, such as that error code repeats more reports, can not only ensure that maintenance personal is quick
Investigation failure, also reduce and puzzlement brought to driver.
Fig. 2 is the function structure chart of vehicle electrically controlling unit in the embodiment of the present invention, please join Fig. 2, the vehicle electrically controlling unit packet
It includes：
Fault detection module 11, for carrying out fault detect；
Fault relationship setup module 12, for the correspondence between failure to be arranged；
Fault determination module 13, for being judged the failure detected according to the correspondence between failure；
Fault logging module 14, in judgement while major error occur and when from failure, only record the event of the major error
Hinder code, do not record the error code from failure, wherein major error and there is implicated relationship, when major error occurs, meeting from failure
Involve initiation simultaneously from failure.
Further, which is additionally operable to, and when judging to occur the sub- failure below female failure, record should
Error code of the error code of female failure without recording the sub- failure, wherein female failure and sub- failure have inclusion relation, female failure
Multiple sub- failures are included below.
Further, which is additionally operable to, when there are other failures in judgement, what record was broken down
Error code.
Further, which is specifically used for, when judgement occurs from failure without there is major error,
Record the error code from failure.
The vehicle electrically controlling unit that the embodiment provides belongs to same design with above-mentioned error code recording method embodiment, has
Body realizes that process refers to embodiment of the method, and which is not described herein again.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in computer-readable storage
In medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above example, in the range of still falling within technical solution of the present invention.
Claims (8)
1. a kind of error code recording method of vehicle electrically controlling unit, which is characterized in that include the following steps：
S1：Electronic control unit carries out fault detect；
S2：Electronic control unit judges the failure detected according to the correspondence between failure；
S3：If it is determined that occurring major error simultaneously and from failure, electronic control unit only records the error code of the major error, do not record this from
The error code of failure wherein major error and has implicated relationship from failure, when major error occurs, can involve initiation simultaneously from former
Barrier.
2. error code recording method as described in claim 1, which is characterized in that the error code recording method further includes step：
S4：If it is determined that there is the sub- failure below female failure, electronic control unit records the error code of mother's failure without recording the son
The error code of failure, wherein there is inclusion relation, female failure multiple sub- failures are included below for female failure and sub- failure.
3. error code recording method as claimed in claim 2, which is characterized in that the error code recording method further includes step：
S5：If it is determined that the failure occurred belongs to other failure situations, electronic control unit records broken down error code.
4. error code recording method as claimed in claim 3, which is characterized in that step S5 includes：If appearance does not have from failure
Major error is occurred, electronic control unit records the error code from failure.
5. a kind of vehicle electrically controlling unit, which is characterized in that including：
Fault detection module (11), for carrying out fault detect；
Fault relationship setup module (12), for the correspondence between failure to be arranged；
Fault determination module (13), for being judged the failure detected according to the correspondence between failure；
Fault logging module (14), in judgement while major error occur and when from failure, only record the failure of the major error
Code, does not record the error code from failure, wherein major error and has implicated relationship from failure, can be together when major error occurs
When involve initiation from failure.
6. vehicle electrically controlling unit as claimed in claim 5, which is characterized in that the fault logging module (14) is additionally operable to, and is being sentenced
When making the sub- failure below existing female failure, error code of the error code of mother's failure without recording the sub- failure is recorded, wherein
There is inclusion relation, female failure multiple sub- failures are included below for female failure and sub- failure.
7. vehicle electrically controlling unit as claimed in claim 6, which is characterized in that the fault logging module (14) is additionally operable to, and is being sentenced
When making other existing failures, the broken down error code of record.
8. vehicle electrically controlling unit as claimed in claim 7, which is characterized in that the fault logging module (14) is specifically used for,
When judgement occurs from failure without there is major error, the error code from failure is recorded.
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| DE102017103147A1 (en) | 2017-02-16 | 2018-08-16 | Infineon Technologies Ag | Alarm handling circuitry and method for handling an alarm |
| CN109445421B (en) * | 2018-12-11 | 2020-06-23 | 北京长城华冠汽车技术开发有限公司 | General fault diagnosis method for vehicle electronic control unit |
| CN110826716B (en) * | 2019-11-06 | 2023-03-24 | 北京明略软件系统有限公司 | Fault processing rule generation method and device |
| CN111240871B (en) * | 2019-12-30 | 2023-07-18 | 潍柴动力股份有限公司 | Method and device for reporting engine fault |
| CN113703415A (en) * | 2020-05-20 | 2021-11-26 | 广州汽车集团股份有限公司 | Detection method and device for vehicle electronic control unit, storage medium and terminal equipment |
| CN113867319A (en) * | 2021-09-29 | 2021-12-31 | 安徽江淮汽车集团股份有限公司 | LabVIEW-based fault diagnosis automatic testing method and system |
| CN113847939A (en) * | 2021-09-30 | 2021-12-28 | 东风越野车有限公司 | Offline fault diagnosis system and method applied to vehicle instrument |
| CN114305187B (en) * | 2022-01-06 | 2023-03-14 | 中山东菱威力电器有限公司 | Sharing intelligent closestool lid system based on thing networking |
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