FR3048455B1 - METHOD FOR DIAGNOSING AN EGR VALVE - Google Patents
METHOD FOR DIAGNOSING AN EGR VALVE Download PDFInfo
- Publication number
- FR3048455B1 FR3048455B1 FR1651858A FR1651858A FR3048455B1 FR 3048455 B1 FR3048455 B1 FR 3048455B1 FR 1651858 A FR1651858 A FR 1651858A FR 1651858 A FR1651858 A FR 1651858A FR 3048455 B1 FR3048455 B1 FR 3048455B1
- Authority
- FR
- France
- Prior art keywords
- diagnosing
- recirculation
- recirculation valve
- egr valve
- determination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 abstract 1
- 238000002405 diagnostic procedure Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/49—Detecting, diagnosing or indicating an abnormal function of the EGR system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
L'invention concerne un procédé de diagnostic d'une vanne de recirculation (51) qui équipe une ligne de recirculation (50) de gaz brûlés d'un moteur à combustion interne (1) et qui comporte une partie mobile pour réguler le débit de gaz brûlés circulant dans cette ligne de recirculation. Selon l'invention, le procédé de diagnostic comporte des étapes de : - détermination d'une première valeur d'un couple délivré par le moteur, - modification de la position de la vanne de recirculation, - détermination d'une seconde valeur dudit couple, - comparaison des deux valeurs déterminées et déduction d'un diagnostic de la vanne de recirculation.The invention relates to a method for diagnosing a recirculation valve (51) which is fitted to a recirculation line (50) of burnt gases from an internal combustion engine (1) and which comprises a movable part for regulating the flow of burnt gases circulating in this recirculation line. According to the invention, the diagnostic method comprises steps of: - determination of a first value of a torque delivered by the engine, - modification of the position of the recirculation valve, - determination of a second value of said torque , - comparison of the two determined values and deduction of a diagnosis of the recirculation valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1651858A FR3048455B1 (en) | 2016-03-04 | 2016-03-04 | METHOD FOR DIAGNOSING AN EGR VALVE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1651858A FR3048455B1 (en) | 2016-03-04 | 2016-03-04 | METHOD FOR DIAGNOSING AN EGR VALVE |
FR1651858 | 2016-03-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3048455A1 FR3048455A1 (en) | 2017-09-08 |
FR3048455B1 true FR3048455B1 (en) | 2020-01-10 |
Family
ID=55863048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1651858A Active FR3048455B1 (en) | 2016-03-04 | 2016-03-04 | METHOD FOR DIAGNOSING AN EGR VALVE |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR3048455B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0689718B2 (en) * | 1987-04-20 | 1994-11-09 | トヨタ自動車株式会社 | Diagnostic device for exhaust gas recirculation system of internal combustion engine |
DE19634975C1 (en) * | 1996-08-29 | 1998-04-16 | Siemens Ag | Diagnostic device for monitoring an exhaust gas recirculation system of an internal combustion engine |
US6085732A (en) * | 1999-01-25 | 2000-07-11 | Cummins Engine Co Inc | EGR fault diagnostic system |
WO2011141994A1 (en) * | 2010-05-11 | 2011-11-17 | トヨタ自動車株式会社 | Method for specifying egr rate in internal combustion engine, and control device for internal combustion engine |
-
2016
- 2016-03-04 FR FR1651858A patent/FR3048455B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3048455A1 (en) | 2017-09-08 |
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