CN105022380A - Technology related to decoder fault code indexing - Google Patents
Technology related to decoder fault code indexing Download PDFInfo
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- CN105022380A CN105022380A CN201410166798.7A CN201410166798A CN105022380A CN 105022380 A CN105022380 A CN 105022380A CN 201410166798 A CN201410166798 A CN 201410166798A CN 105022380 A CN105022380 A CN 105022380A
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- Prior art keywords
- automobile
- fault
- failure
- diagnostic apparatus
- code
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Classifications
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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
- G05B23/0275—Fault isolation and identification, e.g. classify fault; estimate cause or root of failure
- G05B23/0278—Qualitative, e.g. if-then rules; Fuzzy logic; Lookup tables; Symptomatic search; FMEA
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention relates to an automobile fault diagnostic instrument fault code information retrieval method. The method comprises the steps that the fault code of an automobile is acquired from the electric control system of the automobile to be detected by an automobile fault diagnostic instrument, the acquired fault code is compared with a preset fault code in an automobile diagnostic instrument storage device, and the storage address of fault information can be directly positioned so that the corresponding fault code information can be rapidly retrieved and can be displayed to automobile maintenance personnel. Decoder fault information retrieval time can be greatly reduced so that vehicle maintenance speed of the maintenance personnel and decoder software operation efficiency can be enhanced.
Description
This patent is used for the method for automobile fault diagnostic apparatus failure code index, it is characterized in that in vehicle failure detection instrument storer, to navigate to corresponding fault code indications fast.Be one fast, accurately, failure code indexing means easily.
Background technology
OBDII agreement is a standard agreement of the associated engine exhaust emissions of International Environmental Protection tissue definition, can obtain the exhaust emissions situation of regarding Car engine and basic operation conditions by OBDII agreement.OBDII agreement all supported by the engine of most of vehicle on the market.
Automobile engine system is a typical comprehensive complication system, and from structure, the Mechatronic Systems that it is made up of each subsystems such as mechanical, electrical, liquid, belongs to multilayer hierarchical structure; From fault characteristic, it is complicated etc. that it usually shows as failure symptom complexity, causa relation between fault and fault.
Current is completed by automobile fault diagnostic apparatus to the diagnosis of vehicle electrically controlling system, but the read failure code function time used of common automobile fault diagnostic apparatus was at about 8 minutes, and localizing faults code is easily made mistakes, often easily there is false retrieval, undetected, thus add time and difficulty that vehicle trouble is judged.
Summary of the invention
In order to overcome the above-mentioned defect of automobile fault diagnostic apparatus read failure code, the invention provides a kind of method of diagnostic trouble code quick indexing, efficiency and the accuracy of the read failure code of automobile fault diagnostic apparatus can be improved by it.
Conventional failure code retrieval technique is in the storage of automobile fault diagnostic apparatus, deposit all diagnostic trouble code contents, locates by numbering before constantly comparing diagnostic trouble code content.Because diagnostic trouble code content information memory capacity is large, so index overlong time.
Index technology of the present invention first deposits in the storer of automobile fault diagnostic apparatus therefore the memory address of all barrier Code Numbers and corresponding content thereof.Only need more all failure codes numbering can obtain the memory address of corresponding content.Because the quantity of information of failure code numbering is less than device content, so the index time quickly.The index time required for the present invention is according to statistics 1/10th of conventional art.
Beneficial effect of the present invention
Because the conventional failure code index time used is longer, accuracy rate is low.Adopt index technology of the present invention can greatly shorten the index time, improve accuracy rate.10 times can be promoted than conventional art index speed, accuracy rate 100% according to statistics, there is good use valency letter.
Embodiment
As Fig. 1: take automobile fault diagnostic apparatus as platform, diagnostic equipment obtains the failure code of this vehicle from vehicle electrically controlling system to be checked, the failure code preset in the failure code obtained and automobile fault diagnostic apparatus storer compares, and the address that failure message stores can be directly targeted to, corresponding failure code information can be retrieved fast and be supplied to vehicle maintenance personnel by display module and carry out reference.
As Fig. 2: before automobile fault diagnostic apparatus communicates with vehicle electrically controlling system, first diagnostic trouble code sum, each diagnostic trouble code code and code information thereof are stored into fixing ram region by diagnostic equipment application program, detect the vehicle trouble code obtained to compare with the failure code in data storage area, more equal then acquisition corresponding failure digital content address.Unequal, continue to compare, the number of times compared altogether is the diagnostic trouble code sum in data storage area; Retrieve after its diagnostic trouble code content address until CPU and show diagnostic trouble code content by LCDs.
Accompanying drawing explanation
Fig. 1 is decoder fault code index main frame schematic diagram.
Fig. 2 is decoder fault code index terminal schematic diagram.
Claims (4)
1. in an automobile fault diagnostic apparatus fault generation, buys information index method, it is characterized in that vehicle failure detection instrument obtains the failure code of this vehicle from vehicle electrically controlling system to be checked, buy according to obtained fault generation and deposit with automobile fault diagnostic apparatus the failure code preset in memory and compare, thus obtain corresponding failure message address in memory and navigate to this address, and show corresponding failure message and be supplied to maintenance personal.
2. according to claim 1: a kind of automobile fault diagnostic apparatus failure code information index method, it is characterized in that vehicle failure Code Number represents corresponding fault code indications, the electric-controlled system fault Code Number of vehicle has 65536, and automobile fault diagnostic apparatus stores the position at all failure codes numbering and information place.Software, by the failure code numbering contrast with storer, finds identical numbering, thus obtains corresponding failure code information storage addresses, navigate to this address and show its content.
3. automobile fault diagnostic apparatus failure code information index methodological function according to right 2, is characterized in that by the memory address of technical Analysis energy quick position to corresponding information, thus shortens query time, improves search efficiency.
4. automobile fault diagnostic apparatus failure code information index methodological function according to right 3, is characterized in that, by improving search efficiency, reducing query time, cost-saving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166798.7A CN105022380A (en) | 2014-04-24 | 2014-04-24 | Technology related to decoder fault code indexing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166798.7A CN105022380A (en) | 2014-04-24 | 2014-04-24 | Technology related to decoder fault code indexing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105022380A true CN105022380A (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410166798.7A Pending CN105022380A (en) | 2014-04-24 | 2014-04-24 | Technology related to decoder fault code indexing |
Country Status (1)
| Country | Link |
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| CN (1) | CN105022380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106708019A (en) * | 2016-12-30 | 2017-05-24 | 上海华兴数字科技有限公司 | Fault display system |
| CN113110374A (en) * | 2021-03-24 | 2021-07-13 | 江铃汽车股份有限公司 | Vehicle diagnosis data identifier platform implementation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0291539A (en) * | 1988-09-28 | 1990-03-30 | Fuji Heavy Ind Ltd | Vehicle diagnostic system |
| JP2004158031A (en) * | 2004-01-05 | 2004-06-03 | Mitsubishi Fuso Truck & Bus Corp | Method for diagnosing fault of vehicle |
| CN101446830A (en) * | 2008-12-25 | 2009-06-03 | 奇瑞汽车股份有限公司 | Vehicle fault diagnosis instrument and fault diagnosis method |
| CN101477371A (en) * | 2008-01-05 | 2009-07-08 | 深圳市元征软件开发有限公司 | Apparatus and method for reading, recording and analyzing data of vehicle electric control system |
| CN101923348A (en) * | 2010-07-16 | 2010-12-22 | 北京工业大学 | Vehicle-mounted fault diagnosis system and method for hybrid electric vehicle based on CANopen |
| CN102591325A (en) * | 2012-02-20 | 2012-07-18 | 北京金奔腾汽车科技有限公司 | Mobile phone short message vehicle failure remote diagnosis detection method and device |
| CN102981501A (en) * | 2012-11-30 | 2013-03-20 | 重庆邮电大学 | Automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on XML (Extensive Makeup Language) |
| CN103576674A (en) * | 2013-11-05 | 2014-02-12 | 上海新储集成电路有限公司 | Vehicle-mounted situation real-time diagnosis system and vehicle-mounted situation real-time method |
-
2014
- 2014-04-24 CN CN201410166798.7A patent/CN105022380A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0291539A (en) * | 1988-09-28 | 1990-03-30 | Fuji Heavy Ind Ltd | Vehicle diagnostic system |
| JP2004158031A (en) * | 2004-01-05 | 2004-06-03 | Mitsubishi Fuso Truck & Bus Corp | Method for diagnosing fault of vehicle |
| CN101477371A (en) * | 2008-01-05 | 2009-07-08 | 深圳市元征软件开发有限公司 | Apparatus and method for reading, recording and analyzing data of vehicle electric control system |
| CN101446830A (en) * | 2008-12-25 | 2009-06-03 | 奇瑞汽车股份有限公司 | Vehicle fault diagnosis instrument and fault diagnosis method |
| CN101923348A (en) * | 2010-07-16 | 2010-12-22 | 北京工业大学 | Vehicle-mounted fault diagnosis system and method for hybrid electric vehicle based on CANopen |
| CN102591325A (en) * | 2012-02-20 | 2012-07-18 | 北京金奔腾汽车科技有限公司 | Mobile phone short message vehicle failure remote diagnosis detection method and device |
| CN102981501A (en) * | 2012-11-30 | 2013-03-20 | 重庆邮电大学 | Automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on XML (Extensive Makeup Language) |
| CN103576674A (en) * | 2013-11-05 | 2014-02-12 | 上海新储集成电路有限公司 | Vehicle-mounted situation real-time diagnosis system and vehicle-mounted situation real-time method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106708019A (en) * | 2016-12-30 | 2017-05-24 | 上海华兴数字科技有限公司 | Fault display system |
| CN106708019B (en) * | 2016-12-30 | 2019-12-27 | 上海华兴数字科技有限公司 | Fault display system |
| CN113110374A (en) * | 2021-03-24 | 2021-07-13 | 江铃汽车股份有限公司 | Vehicle diagnosis data identifier platform implementation method |
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Application publication date: 20151104 |
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