CN201679563U - Engine online diagnosis device - Google Patents

Engine online diagnosis device Download PDF

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Publication number
CN201679563U
CN201679563U CN2010201679341U CN201020167934U CN201679563U CN 201679563 U CN201679563 U CN 201679563U CN 2010201679341 U CN2010201679341 U CN 2010201679341U CN 201020167934 U CN201020167934 U CN 201020167934U CN 201679563 U CN201679563 U CN 201679563U
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CN
China
Prior art keywords
unit
diagnosis
engine
sensor
interface unit
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Expired - Fee Related
Application number
CN2010201679341U
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Chinese (zh)
Inventor
张吉强
宣奇武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IAT Automobile Technology Co Ltd
Original Assignee
IAT (CHINA) AUTO TECHNOLOGY Co Ltd
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Priority to CN2010201679341U priority Critical patent/CN201679563U/en
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Publication of CN201679563U publication Critical patent/CN201679563U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model provides an engine on-line diagnosis (OBD) device, which comprises an engine management unit and an OBD management module. The engine management unit comprises an engine operating condition sensor signal input unit, a real-time diagnosis information unit, a trouble light control unit and a serial port communication module. The OBD management module comprises a data input interface unit receiving an input signal from the engine management unit, a diagnosis module group connected with the data input interface unit, and a data output interface unit connected with the diagnosis module group, and the data output interface unit is connected with the trouble light control unit and the serial port communication module. The diagnosis module group can include a catalyst converter diagnosis unit, an oxygen sensor diagnosis unit, a fuel oil diagnosis unit, a fire diagnosis unit, a serrate error learning unit and a part diagnosis unit. By adopting the engine online diagnosis device, all failures of an engine during running can be diagnosed comprehensively, so as to reach various national technical standards.

Description

The motor on-line diagnosing apparatus
Technical field
The utility model relates to motor inline diagnosis (OBD) device, the information that it can monitor vehicle so that when vehicle breaks down alerting drivers, when maintenance, can read diagnostic trouble code, find abort situation and on-call maintenance.
Background technique
The OBD device obtains relevant information from the engine management unit and diagnoses, and the real time information with diagnosis simultaneously feeds back to management system participation control, has the function of identification, storage and indication fault lamp.Simultaneously also can participate in the control of motor under given conditions directly in order to finish diagnosis.
At present, the domestic OBD device that can satisfy national Abgasgesetz is all grasped in international major company hand, such as Bosch (BOSCH), Delphi (DELPHI), continent, Japan electric coating etc.These companies mostly adopt special-purpose chip and circuit design, and the design of control gear, manufacturing, operation and maintenance cost are all higher, are unfavorable for the use of motor OBD device.
Summary of the invention
The purpose of this utility model provide a kind of can be comprehensively, the motor on-line diagnosing apparatus of various faults in the quick diagnosis engine operation process.
The utility model provides a kind of motor on-line diagnosing apparatus, and it comprises an engine management unit and an OBD administration module.The engine management unit comprises an engine operating condition sensor signal input unit, a real-time diagnosis IVDS Information Unit, a trouble light control unit and a serial communication module.The OBD administration module comprises a reception from the Data Input Interface unit of the input signal of engine management unit, diagnostic module group that links to each other with the Data Input Interface unit and a data output interface unit that links to each other with the diagnostic module group, and the data output interface unit links to each other with the serial communication module with the trouble light control unit.
In another exemplary embodiment of motor on-line diagnosing apparatus, the diagnostic module group comprises a catalyst converter diagnosis unit, an oxygen sensor diagnostic unit, a fuel oil diagnosis unit, a misfire diagnosis unit, a tooth profile error unit and a component diagnosis unit.
In the another kind of exemplary embodiment of motor on-line diagnosing apparatus, the data output interface unit comprises a real-time diagnosis IVDS Information Unit and a diagnostic result unit.
In also a kind of exemplary embodiment of motor on-line diagnosing apparatus, the sensor that links to each other with engine operating condition sensor signal input unit comprises suction pressure temperature transducer, throttle position sensor, cooling-water temperature sensor, barometric pressure sensor, system voltage sensor and engine running timer.
Motor OBD device can monitor vehicle information, and when vehicle breaks down alerting drivers, when maintenance, can conveniently find abort situation and on-call maintenance via specific mode read failure sign indicating number.
Description of drawings
The following drawings is only done the utility model and is schematically illustrated and explain, does not limit scope of the present utility model, and Fig. 1 is a kind of schematic structure schematic block diagram of motor on-line diagnosing apparatus.
Embodiment
Understand for technical characteristics, purpose and effect to model utility have more clearly, now contrast description of drawings embodiment of the present utility model.
As shown in Figure 1, the motor on-line diagnosing apparatus comprises an engine management unit 20 and an On-Board Diagnostics (OBD) administration module 30.For keeping drawing succinct, engine management unit 20 has been divided into two parts in Fig. 1.
Engine management unit 20 comprises an engine operating condition sensor signal input unit 22, real-time diagnosis IVDS Information Unit 24, a trouble light control unit 26 and a serial communication module 28.
Engine operating condition sensor signal input unit 22 can link to each other with suction pressure temperature transducer, throttle position sensor, cooling-water temperature sensor, barometric pressure sensor, system voltage sensor and engine running timer.Trouble light control unit 26 can link to each other with the OBD fault indicating lamp.Serial communication module 28 can link to each other with a scanning tools.
OBD administration module 30 comprises a data input interface unit 32, diagnostic module group 34 and a data output interface unit 36.
Data Input Interface unit 32 receives the signal of the expression engine information of exporting from engine operating condition sensor signal input unit 22 and the real-time diagnosis signal of exporting from real-time diagnosis IVDS Information Unit 24, and it also exports the signal that motor is controlled to engine operating condition sensor signal input unit 22 simultaneously.
The signal that diagnostic module group 34 receives from Data Input Interface unit 32, it comprises a catalyst converter diagnosis unit, an oxygen sensor diagnostic unit, a fuel oil diagnosis unit, a misfire diagnosis unit, a tooth profile error unit and a component diagnosis unit.The catalyst converter diagnosis unit can be diagnosed the degradation failure of the catalyst converter that is arranged on petrol engine outlet pipe place, the oxygen sensor diagnostic unit is used to detect the fault of the lambda sensor that is arranged on the catalyst converter upstream, the fuel oil diagnosis unit is used for the oil supply system failure of monitoring engine, the catch fire situation of misfire diagnosis unit in can detection of engine, tooth profile error unit can detection of engine tooth news learning process.
As shown in Figure 1, data output interface unit 36 links to each other with diagnostic module group 34, it comprises a real-time diagnosis IVDS Information Unit and a diagnostic result unit, and 36 of data output interface unit link to each other with trouble light control unit 26 with serial communication module 28 respectively, to they output control signals.
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the mode of execution that is described to " schematically " in this article should be interpreted as a kind of preferred or have more the technological scheme of advantage.
Be to be understood that, though this specification is described according to embodiment, but be not that this embodiment only comprises an independently technological scheme, this narrating mode of specification only is for clarity sake, those skilled in the art should make specification as a whole, form other mode of executions that it will be appreciated by those skilled in the art that.
Above listed a series of detailed description only is specifying at feasibility embodiment of the present utility model; they are not in order to limiting protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the present utility model.

Claims (4)

1. motor on-line diagnosing apparatus, it comprises an engine management unit (20) and an OBD administration module (30), it is characterized in that:
Described engine management unit (20) comprises an engine operating condition sensor signal input unit (22), a real-time diagnosis IVDS Information Unit (24), a trouble light control unit (26) and a serial communication module (28);
Described OBD administration module (30) comprises a reception from the Data Input Interface unit (32) of described engine management unit (20) input signal, diagnostic module group (34) that links to each other with described Data Input Interface unit (32) and a data output interface unit (36) that links to each other with described diagnostic module group (34), and described data output interface unit (36) links to each other with described serial communication module (28) with described trouble light control unit (26).
2. motor on-line diagnosing apparatus as claimed in claim 1, wherein said diagnostic module group (34) comprise a catalyst converter diagnosis unit, an oxygen sensor diagnostic unit, a fuel oil diagnosis unit, a misfire diagnosis unit, a tooth profile error unit and a component diagnosis unit.
3. motor on-line diagnosing apparatus as claimed in claim 2, wherein said data output interface unit (36) comprise a real-time diagnosis IVDS Information Unit and a diagnostic result unit.
4. motor on-line diagnosing apparatus as claimed in claim 1, wherein the sensor that links to each other with described engine operating condition sensor signal input unit (22) comprises: suction pressure temperature transducer, throttle position sensor, cooling-water temperature sensor, barometric pressure sensor, system voltage sensor and engine running timer.
CN2010201679341U 2010-04-23 2010-04-23 Engine online diagnosis device Expired - Fee Related CN201679563U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201679341U CN201679563U (en) 2010-04-23 2010-04-23 Engine online diagnosis device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201679341U CN201679563U (en) 2010-04-23 2010-04-23 Engine online diagnosis device

Publications (1)

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CN201679563U true CN201679563U (en) 2010-12-22

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CN2010201679341U Expired - Fee Related CN201679563U (en) 2010-04-23 2010-04-23 Engine online diagnosis device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105675304A (en) * 2016-01-04 2016-06-15 杭州科技职业技术学院 Automobile engine on-line monitoring system
CN115380257A (en) * 2020-07-06 2022-11-22 三菱电机株式会社 Input/output module, standard input/output module unit, and safety circuit unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105675304A (en) * 2016-01-04 2016-06-15 杭州科技职业技术学院 Automobile engine on-line monitoring system
CN115380257A (en) * 2020-07-06 2022-11-22 三菱电机株式会社 Input/output module, standard input/output module unit, and safety circuit unit
CN115380257B (en) * 2020-07-06 2023-10-24 三菱电机株式会社 Input/output module, standard input/output module unit and safety circuit unit

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Engine online diagnosis device

Effective date of registration: 20111114

Granted publication date: 20101222

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT (China) Auto Technology Co., Ltd.

Registration number: 2011990000434

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Owner name: IAT AUTOMOBILE TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: IAT (CHINA) AUTO TECHNOLOGY CO., LTD.

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Address after: 100076 Beijing City Shuangyang East Industrial Zone Daxing District Yizhuang Road No. 8

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Patentee before: IAT (China) Auto Technology Co., Ltd.

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Assignee: BEIJING IAT AUTOMOBILE TECHNOLOGY CO., LTD.

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