CN203054592U - Automotive fault diagnosis system - Google Patents
Automotive fault diagnosis system Download PDFInfo
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- CN203054592U CN203054592U CN 201220708888 CN201220708888U CN203054592U CN 203054592 U CN203054592 U CN 203054592U CN 201220708888 CN201220708888 CN 201220708888 CN 201220708888 U CN201220708888 U CN 201220708888U CN 203054592 U CN203054592 U CN 203054592U
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Abstract
Disclosed in the utility model is an automotive fault diagnosis system. An electronic control unit is connected with a CAN-USB transition card by an automotive CAN bus; and the CAN-USB transition card is connected with an intelligent device by a USB-OTG data line. The intelligent device reads a fault code and determines whether to make a remote diagnosis request or not; if so, the intelligent device sends the fault code to a remote fault diagnosis server by a wireless network and the remote fault diagnosis server receives the fault code, obtains the fault information and responding measures corresponding to the fault code, and sends the fault information and the corresponding measures to the intelligent device by the wireless network; and if not, the intelligent device obtains the fault information and responding measures corresponding to the fault code. With utilization of the automotive fault diagnosis system, the automotive maintenance and repairing can be guided timely and the cost, manpower and material resources of the user are lowered; and there is no need for the user to purchase a vehicle diagnosis device and pollution on the environment by lots of electronic products is prevented due to the popularization of intelligent equipment, thereby realizing the green and environmental protection ideals.
Description
Technical field
The utility model relates to fault diagnosis system, relates in particular to a kind of fault diagnosis system for automobile.
Background technology
In recent years, along with the develop rapidly of automobile control technology, network technology and mechanics of communication, for convenience of driver's mobility operation and the safety traffic of guaranteeing automobile, the operation of automobile each several part is more and more to the operation integrated development.Mount message communication traffic on automobile, it can provide vehicle position information service, vehicle stolen and accident detection, remote vehicle diagnosis, emergency relief, traffic-information service and utilize the mobile office chamber of wireless Internet and function such as E-mail service.
Along with automotive engineering progressively tipped the time, the fault that automobile occurs also presents variation, and therefore, vehicle failure detection technology and fault diagnosis technology are also just growing.At present, a plurality of electronic control units that can receive the induced signal that spreads out of from various sensors are housed all on the most automobile, obtain diagnostic trouble code etc. by electronic control unit.
Utility model people finds to exist at least in the prior art following shortcoming and defect in realizing process of the present utility model:
Though electronic control unit provides diagnostic trouble code, the field staff can't in time get access to detailed failure message and counter-measure, and automobile is keeped in repair; Even little fault also needs to keep in repair to maintenace point, increased user's cost, man power and material.
The utility model content
The utility model provides a kind of fault diagnosis system for automobile, and this system has realized timely automobile being keeped in repair, and has reduced user's cost, man power and material, sees for details hereinafter to describe:
A kind of fault diagnosis system for automobile, described fault diagnosis system comprises: have the electronic control unit of self-diagnostic function, described electronic control unit detects the running status of automobile in real time, obtains the corresponding diagnostic trouble code of malfunction and storage;
Described electronic control unit connects the CAN-USB transition card by automobile CAN-bus, and described CAN-USB transition card connects smart machine by the USB-OTG data line; Described smart machine reads described diagnostic trouble code, and judges whether request remote diagnosis;
If request, described smart machine is sent to the remote fault diagnosis server by wireless network with described diagnostic trouble code; Described remote fault diagnosis server receives described diagnostic trouble code, obtains the corresponding failure message of described diagnostic trouble code and counter-measure, and is sent to described smart machine by described wireless network;
If do not ask, described smart machine obtains the corresponding failure message of described diagnostic trouble code and counter-measure.
After fault was eliminated, described smart machine was removed the diagnostic trouble code of storing in the described electronic control unit.
Described smart machine also sends to the mailbox of binding with described smart machine with described failure message and counter-measure.
Described remote fault diagnosis server and described smart machine are real-time carries out diagnostic data base online upgrading and software self online upgrading.
Described fault diagnosis system also comprises:
The data stream of obtaining each state parameter that described electronic control unit is real-time, described smart machine reads described data stream, and judges whether to ask long-range demarcation;
If request, described smart machine is sent to described remote fault diagnosis server by described wireless network with described data stream; Described remote fault diagnosis server receives described data stream and handles, obtain calibrated state parameter, and be sent to described smart machine by described wireless network, by described smart machine described calibrated state parameter is transferred to described electronic control unit;
If do not ask, described smart machine is handled described data stream, obtains described calibrated state parameter, and described calibrated state parameter is transferred to described electronic control unit.
The beneficial effect of the technical scheme that the utility model provides is: automobile driver or maintenance personal only need at smart machine the application software with diagnostic function to be installed and can diagnose vehicle trouble information anywhere or anytime, remove, be used for the guiding vehicle maintenance; This system has carried out instructing timely to auto repair, has reduced user's cost, man power and material; The user need not to buy vehicle diagnosing apparatus, along with smart machine universal avoided a large amount of electronic product to the pollution of environment, has realized green, the theory of environmental protection.
Description of drawings
Fig. 1 is a kind of structural drawing of the fault diagnosis system for automobile;
Fig. 2 is the functional block diagram with smart machine of diagnostic function;
Fig. 3 is the functional block diagram of remote diagnosis server;
Fig. 4 is the workflow diagram of fault diagnosis system.
In the accompanying drawing, the list of parts of each label representative is as follows:
1: electronic control unit; The 2:CAN bus;
The 3:CAN-USB transition card; The 4:USB-OTG data line;
5: smart machine; 6: the remote fault diagnosis server.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below the utility model embodiment is described in further detail.
The electronic control unit of installing on the automobile in the practical application 1 has self-diagnostic function, whether the induced signal that receives by judgement has no abnormal, determine whether to exist fault, each fault that system can detect all uses corresponding diagnostic trouble code to represent, the diagnostic trouble code state is then represented the storage condition of fault etc., be mainly used in distinguishing sporadic fault, the continuation fault, historic fault and work as prior fault, diagnostic trouble code and diagnostic trouble code state are one to one, each diagnostic trouble code has a diagnostic trouble code state, should set up the Address Mapping of diagnostic trouble code and diagnostic trouble code state in nonvolatile memory in advance.When diagnostic device sent the diagnosis service order to electronic control unit 1, electronic control unit 1 was carried out corresponding service, returns corresponding failure message, to instruct on-site maintenance personnel's work.
Referring to Fig. 1, in order to realize timely automobile being keeped in repair, reduce user's cost, man power and material, the utility model embodiment has proposed a kind of fault diagnosis system for automobile, this fault diagnosis system comprises: the electronic control unit 1 that has self-diagnostic function, electronic control unit 1 detects the running status of automobile in real time, obtains the corresponding diagnostic trouble code of malfunction and storage;
Electronic control unit 1 connects CAN-USB transition card 3 by automobile CAN-bus 2, and CAN-USB transition card 3 connects smart machine 5 by USB-OTG data line 4; Smart machine 5 read failure sign indicating numbers, and judge whether request remote diagnosis;
If request, smart machine 5 is sent to remote fault diagnosis server 6 by wireless network with diagnostic trouble code; Remote fault diagnosis server 6 receives diagnostic trouble code, obtains the corresponding failure message of diagnostic trouble code and counter-measure, and is sent to smart machine 5 by wireless network;
If do not ask, smart machine 5 obtains the corresponding failure message of diagnostic trouble code and counter-measure.
The user is according to the fault of the failure message that gets access in the smart machine 5 and counter-measure elimination automobile, and after fault was eliminated, smart machine 5 was removed the diagnostic trouble code of storage in the electronic control units 1.
Further, the user searches failure message in the future for convenience, and this smart machine 5 also sends to failure message and counter-measure in the mailbox of binding with smart machine 5.
Wherein, smart machine 5 is generally the application software that mobile phone and PC etc. are equipped with diagnostic function, and this smart machine 5 can carry out fault diagnosis to automobile as the automobile fault diagnostic apparatus of special exploitation.
Along with the accumulation of vehicle hour, and vehicle component is aging, and the fault that comes out can get more and more; Or along with the increase of vehicle and vehicle functions, the diagnostic trouble code of defined also can get more and more.Original database certainly will can not satisfy existing requirement, and therefore, diagnostic trouble code and diagnostic message etc. will redefine and expand.Therefore this remote fault diagnosis server 6 should have the update functions of diagnostic data base, the local diagnostic data base of smart machine 5 also will upgrade accordingly, and namely remote fault diagnosis server 6 and smart machine 5 can also be real-time carries out diagnostic data base online upgrading and software self online upgrading.
Further, for accurately get access in the process of moving each state parameter of automobile (for example: travel speed etc.), this fault diagnosis system also comprises:
The data stream of obtaining each state parameter that electronic control unit 1 is real-time, smart machine 5 reading data flows, and judge whether to ask long-range demarcation;
If request, smart machine 5 is sent to remote fault diagnosis server 6 by wireless network with data stream; Remote fault diagnosis server 6 receiving data streams are also handled, and obtain calibrated state parameter, and are sent to smart machine 5 by wireless network, and smart machine 5 is transferred to electronic control unit 1 with calibrated state parameter;
If do not ask, 5 pairs of data streams of smart machine are handled, and obtain calibrated state parameter, and calibrated state parameter is transferred to electronic control unit 1.
Wherein, data stream is handled the process of obtaining calibrated state parameter, for conventionally known to one of skill in the art, the utility model embodiment does not do at this and gives unnecessary details.
Below in conjunction with Fig. 2, Fig. 3 and Fig. 4, the principle of work of this fault diagnosis system is described in detail, see for details hereinafter:
Referring to Fig. 2, the smart machine 5 with diagnostic function comprises read failure code function, removing diagnostic trouble code function, local fault diagnosis functions, local calibrating function, request remote fault diagnosis function, asks long-range calibrating function, sends diagnostic message function, local diagnostic data base online upgrading function and software self online upgrading function to subscriber mailbox.The user is by being connected smart machine 5 on the CAN bus 2 through CAN-USB transition card 3, and starts the application with diagnostic function and just can carry out fault diagnosis and demarcation to each electronic control unit 1 of automobile.Can sum up the workflow of each functional module with diagnostic function in conjunction with Fig. 4: after connecting line is connected, the user starts the diagnostic software on the smart machine 5, this diagnostic software reads the diagnostic trouble code of electronic control unit 1, after smart machine 5 is received diagnostic trouble code, determine it is in local data base, to search for or in the remote fault diagnosis database, search for by the user, if in local data base, search for, then diagnostic message is presented on the smart machine 5; If request remote fault diagnosis function then earlier through wireless network diagnostic trouble code is sent to remote fault diagnosis server 6, remote fault diagnosis server 6 will be searched for corresponding detailed diagnostics information and counter-measure in database, and return to smart machine 5 through wireless network, smart machine 5 is presented on the screen diagnostic message and counter-measure for reference, this smart machine 5 sends to diagnostic message and counter-measure in the mailbox of smart machine 5 bindings automatically simultaneously, after the fault clearance of user with automobile, 5 of smart machines are removed the diagnostic trouble code in electronic control unit 1 storer.
Wherein, local calibrating function and long-range calibrating function and local fault diagnosis and remote fault diagnosis are similar, and the utility model embodiment does not do at this and gives unnecessary details.
Remote fault diagnosis server 6 comprises remote fault diagnosis function, long-range calibrating function, diagnostic data base AKU function is provided, the update functions of application software upgrade packet function and diagnostic data base is provided.Smart machine 5 requests will send to remote fault diagnosis server 6 by wireless network with diagnostic trouble code when carrying out remote fault diagnosis, remote fault diagnosis database 6 is searched in database, and the diagnostic message corresponding with this diagnostic trouble code sent to smart machine 5 through wireless network.The long-range timing signal of smart machine 5 requests, the data stream of state parameter is sent to remote fault diagnosis server 6 through wireless network, 6 pairs of state parameters of remote fault diagnosis server are demarcated, and calibrated state parameter transferred to smart machine 5, get access to accurate state parameter, and this calibrated state parameter is returned to electronic control unit 1.
It will be appreciated by those skilled in the art that accompanying drawing is the synoptic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number does not represent the quality of embodiment just to description.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. fault diagnosis system that is used for automobile, described fault diagnosis system comprises: have the electronic control unit of self-diagnostic function, described electronic control unit detects the running status of automobile in real time, obtains the corresponding diagnostic trouble code of malfunction and storage; It is characterized in that,
Described electronic control unit connects the CAN-USB transition card by automobile CAN-bus, and described CAN-USB transition card connects smart machine by the USB-OTG data line; Described smart machine reads described diagnostic trouble code, and judges whether request remote diagnosis;
If request, described smart machine is sent to the remote fault diagnosis server by wireless network with described diagnostic trouble code; Described remote fault diagnosis server receives described diagnostic trouble code, obtains the corresponding failure message of described diagnostic trouble code and counter-measure, and is sent to described smart machine by described wireless network;
If do not ask, described smart machine obtains the corresponding failure message of described diagnostic trouble code and counter-measure.
2. a kind of fault diagnosis system for automobile according to claim 1 is characterized in that described fault diagnosis system also comprises:
The data stream of obtaining each state parameter that described electronic control unit is real-time, described smart machine reads described data stream, and judges whether to ask long-range demarcation;
If request, described smart machine is sent to described remote fault diagnosis server by described wireless network with described data stream; Described remote fault diagnosis server receives described data stream and handles, obtain calibrated state parameter, and be sent to described smart machine by described wireless network, by described smart machine described calibrated state parameter is transferred to described electronic control unit;
If do not ask, described smart machine is handled described data stream, obtains described calibrated state parameter, and described calibrated state parameter is transferred to described electronic control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708888 CN203054592U (en) | 2012-12-18 | 2012-12-18 | Automotive fault diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708888 CN203054592U (en) | 2012-12-18 | 2012-12-18 | Automotive fault diagnosis system |
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| CN203054592U true CN203054592U (en) | 2013-07-10 |
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| CN 201220708888 Expired - Lifetime CN203054592U (en) | 2012-12-18 | 2012-12-18 | Automotive fault diagnosis system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019232A (en) * | 2012-12-18 | 2013-04-03 | 天津清源电动车辆有限责任公司 | Fault diagnosis system for automobiles |
| CN103439961A (en) * | 2013-08-02 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Automobile electronic control unit diagnostic function test method and system |
| CN103699115A (en) * | 2013-12-13 | 2014-04-02 | 深圳市道通科技有限公司 | Method and device for transmitting communication data of automobile |
| CN104199438A (en) * | 2014-08-19 | 2014-12-10 | 奇瑞汽车股份有限公司 | Remote diagnosis method and equipment of vehicle |
| CN107562040A (en) * | 2017-09-18 | 2018-01-09 | 内蒙古自治区大气探测技术保障中心 | The acquisition methods and system of fault diagnosis flow scheme |
| CN109683581A (en) * | 2017-10-18 | 2019-04-26 | 江苏卡威汽车工业集团股份有限公司 | A kind of novel intelligent automobile system |
| CN109686117A (en) * | 2017-10-18 | 2019-04-26 | 江苏卡威汽车工业集团股份有限公司 | A kind of intelligent automobile automatic dispatching system |
| CN109765448A (en) * | 2019-02-01 | 2019-05-17 | 唐智科技湖南发展有限公司 | A kind of distributed type fault diagnosis method, apparatus and system |
| CN110967629A (en) * | 2018-09-28 | 2020-04-07 | Abb瑞士股份有限公司 | Fault diagnosis system and method for electric drive device |
| CN111016663A (en) * | 2019-12-27 | 2020-04-17 | 中国科学院电工研究所 | Health management system for electric drive system |
| CN112947372A (en) * | 2021-02-05 | 2021-06-11 | 重庆长安汽车股份有限公司 | Remote diagnosis method based on active reporting of fault codes |
| CN113126589A (en) * | 2019-12-31 | 2021-07-16 | 广州汽车集团股份有限公司 | Vehicle-mounted self-diagnosis method, vehicle-mounted intelligent system and self-diagnosis system |
-
2012
- 2012-12-18 CN CN 201220708888 patent/CN203054592U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019232A (en) * | 2012-12-18 | 2013-04-03 | 天津清源电动车辆有限责任公司 | Fault diagnosis system for automobiles |
| CN103439961A (en) * | 2013-08-02 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Automobile electronic control unit diagnostic function test method and system |
| CN103439961B (en) * | 2013-08-02 | 2016-03-02 | 浙江吉利汽车研究院有限公司 | Automobile electronic control unit diagnostic function test method and system |
| CN103699115A (en) * | 2013-12-13 | 2014-04-02 | 深圳市道通科技有限公司 | Method and device for transmitting communication data of automobile |
| CN104199438A (en) * | 2014-08-19 | 2014-12-10 | 奇瑞汽车股份有限公司 | Remote diagnosis method and equipment of vehicle |
| CN107562040A (en) * | 2017-09-18 | 2018-01-09 | 内蒙古自治区大气探测技术保障中心 | The acquisition methods and system of fault diagnosis flow scheme |
| CN109683581A (en) * | 2017-10-18 | 2019-04-26 | 江苏卡威汽车工业集团股份有限公司 | A kind of novel intelligent automobile system |
| CN109686117A (en) * | 2017-10-18 | 2019-04-26 | 江苏卡威汽车工业集团股份有限公司 | A kind of intelligent automobile automatic dispatching system |
| CN110967629A (en) * | 2018-09-28 | 2020-04-07 | Abb瑞士股份有限公司 | Fault diagnosis system and method for electric drive device |
| CN109765448A (en) * | 2019-02-01 | 2019-05-17 | 唐智科技湖南发展有限公司 | A kind of distributed type fault diagnosis method, apparatus and system |
| CN109765448B (en) * | 2019-02-01 | 2021-07-13 | 唐智科技湖南发展有限公司 | Distributed fault diagnosis method, device and system |
| CN111016663A (en) * | 2019-12-27 | 2020-04-17 | 中国科学院电工研究所 | Health management system for electric drive system |
| CN111016663B (en) * | 2019-12-27 | 2021-10-29 | 中国科学院电工研究所 | Health management system for electric drive system |
| CN113126589A (en) * | 2019-12-31 | 2021-07-16 | 广州汽车集团股份有限公司 | Vehicle-mounted self-diagnosis method, vehicle-mounted intelligent system and self-diagnosis system |
| CN112947372A (en) * | 2021-02-05 | 2021-06-11 | 重庆长安汽车股份有限公司 | Remote diagnosis method based on active reporting of fault codes |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130710 |