EP0691465A2 - Méthode de détection de connections croisées de sondes lamba - Google Patents
Méthode de détection de connections croisées de sondes lamba Download PDFInfo
- Publication number
- EP0691465A2 EP0691465A2 EP95107229A EP95107229A EP0691465A2 EP 0691465 A2 EP0691465 A2 EP 0691465A2 EP 95107229 A EP95107229 A EP 95107229A EP 95107229 A EP95107229 A EP 95107229A EP 0691465 A2 EP0691465 A2 EP 0691465A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lambda
- probes
- injection valves
- lambda probe
- rows
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
- F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
- F02D41/1474—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method by detecting the commutation time of the sensor
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1493—Details
- F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2438—Active learning methods
Definitions
- the invention relates to a method for detecting reverse-connected lambda probes in an internal combustion engine with two rows of cylinders, each of which is separately assigned an exhaust gas catalytic converter with a lambda probe and a lambda control unit connected to it, and whose injection valves can be switched off at least in rows.
- the lambda probes can no longer be interchanged or connected, they would have to be mechanically coded, which can be done, for example, by different plug connections or by different cable lengths for the left and right lambda probes. However, this would violate the principle of common parts for the lambda probes, which would result in an increase in costs.
- This object is achieved in that the injectors of one of the two rows of cylinders are switched off for a time corresponding to at least the reaction or changeover time of the lambda probes, in that the lambda probe signal of the lambda probe assigned to the deactivated row of cylinders also ends at the end of the shutdown time of the injectors a predetermined threshold value is compared and that a reverse connection of the lambda probes is detected when the lambda probe signal exceeds or falls below the threshold value.
- the threshold value will be exceeded if the lambda probe emits a small signal when the mixture is lean and a large signal when the mixture is rich. Analogue the threshold value will be undershot if the lambda probe emits a large signal when the mixture is lean and a small signal when the mixture is rich.
- the lambda controls are blocked and an error display device is activated.
- an external test device which can be connected to a diagnostic connection of the internal combustion engine is used to detect a connection of the lambda probes which is reversed.
- the method according to the invention can advantageously also be adopted in the internal combustion engine control devices as a so-called on-board diagnostic function. This would immediately detect an unauthorized swapping of the lambda probes even between visits to the workshop.
- Fig. 1 the lambda probe signals U1 and U5 of the left and right cylinder banks 2 and 4 each properly assigned lambda probes 1 and 5 are shown on the left side.
- the two block diagrams on the right side of FIG. 1 show that the lambda probe 1 provided for the left cylinder bank correctly points to the left internal combustion engine control unit 3 provided for the left cylinder bank 2 and the lambda probe 5 provided for the right cylinder bank 4 the engine control unit 6 provided for the right cylinder bank 4 is connected.
- the two engine control units 3 and 6 are designed in the form of digital engine control units DME.
- the injection valves 7 of the left cylinder bank 2 are switched off, while the injection valves 8 of the right cylinder bank 4 are fired.
- the two left-hand diagrams of FIG. 1 show that the lambda probe signal U 1 shown in FIG. 1 at the top left of the lambda probe 1 assigned to the deactivated cylinder bank 2 does not exceed the predetermined threshold value S at the end of the deactivation time of the injection valves 7. It correctly indicates that the left cylinder bank 2 is operated lean. There is therefore a correct connection of the lambda probes 1 and 5.
- the lambda probe signal U 1 which is actually assigned to the left cylinder bank 2, but is incorrectly connected to the right cylinder bank 4, shows the lambda probe 1.
- the lambda probe signal U 1 of the lambda probe 1 shows a rich mixture when the left cylinder bank 2 is switched off and therefore operated lean
- the lambda probe signal U 5 shown in the figure at the bottom left corresponds to that of the right cylinder bank 4 , but indicates a lean mixture to the left cylinder bank 2 connected lambda probe 5.
- the reverse ie. H. the cross-swapped connection of two so-called monitor probes are determined, which are used to monitor the respective catalyst conversion function.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4423344A DE4423344A1 (de) | 1994-07-04 | 1994-07-04 | Verfahren zur Erkennung von seitenverkehrt angeschlossenen Lambda-Sonden |
DE4423344 | 1994-07-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0691465A2 true EP0691465A2 (fr) | 1996-01-10 |
EP0691465A3 EP0691465A3 (fr) | 1996-01-17 |
EP0691465B1 EP0691465B1 (fr) | 1997-03-12 |
Family
ID=6522174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95107229A Expired - Lifetime EP0691465B1 (fr) | 1994-07-04 | 1995-05-12 | Méthode de détection de connections croisées de sondes lamba |
Country Status (5)
Country | Link |
---|---|
US (1) | US5528932A (fr) |
EP (1) | EP0691465B1 (fr) |
JP (1) | JPH0842386A (fr) |
DE (2) | DE4423344A1 (fr) |
ES (1) | ES2100757T3 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0897054A1 (fr) * | 1997-08-11 | 1999-02-17 | Daimler-Benz Aktiengesellschaft | Procédé pour détecter la permutation de sondes lambda. |
EP0860597A3 (fr) * | 1997-02-19 | 1999-12-15 | DaimlerChrysler AG | Méthode de test des connections de sondes lambda |
EP1247966A3 (fr) * | 2001-04-06 | 2004-12-22 | Audi Ag | Méthode pour détecter la permutation de sondes à oxygène |
FR2859241A1 (fr) * | 2003-08-25 | 2005-03-04 | Volkswagen Ag | Procede et dispositif destines a l'etablissement d'un diagnostic d'interversion de sondes lambda |
WO2007012608A1 (fr) * | 2005-07-28 | 2007-02-01 | Siemens Aktiengesellschaft | Procede et dispositif pour allouer plusieurs detecteurs d'un type a des objets a mesurer de moteur a combustion interne |
EP2065581A1 (fr) | 2007-11-27 | 2009-06-03 | Caterpillar, Inc. | Système et procédé de détection d'un défaut d'assemblage du système post-traitement d'échappement d'une machine |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10026213B4 (de) * | 2000-05-26 | 2007-07-26 | Volkswagen Ag | Verfahren zum Konfigurieren einer Mehrzahl von Lambdasonden eines Verbrennungsmotors |
US6735939B2 (en) * | 2001-11-26 | 2004-05-18 | Ford Global Technologies, Llc | System and method for monitoring and exhaust gas sensor in an engine |
DE10159947A1 (de) * | 2001-12-06 | 2003-06-18 | Bayerische Motoren Werke Ag | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
DE10203728A1 (de) * | 2002-01-30 | 2003-08-14 | Bosch Gmbh Robert | Elektronischer Vertauschschutz von Abgasmesssonden in einer abgasnachbehandelnden Brennkraftmaschine insbesondere eines Kraftfahrzeuges |
US7367918B2 (en) * | 2005-11-08 | 2008-05-06 | Zf Friedrichshafen Ag | Method for self-configuring automated mechanical transmission and electronic controller |
JP4618220B2 (ja) * | 2006-09-05 | 2011-01-26 | 株式会社デンソー | ガスセンサの組み付け状態検出方法及びガスセンサの組み付け状態検出装置 |
JP4640318B2 (ja) * | 2006-11-09 | 2011-03-02 | 株式会社デンソー | 内燃機関の制御装置 |
JP2008261289A (ja) * | 2007-04-12 | 2008-10-30 | Toyota Motor Corp | 空燃比センサの異常診断装置 |
DE102011001045A1 (de) | 2011-03-03 | 2012-09-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zur Diagnose von Abgassonden und/oder Katalysatoren |
US8959892B2 (en) * | 2013-01-25 | 2015-02-24 | Caterpillar Inc. | Exhaust system having sensor placement detection |
DE102014209316B4 (de) * | 2014-05-16 | 2018-10-04 | Volkswagen Aktiengesellschaft | Verfahren und Steuervorrichtung zum Ausführen abgasrelevanter Diagnosen |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450354A1 (fr) * | 1979-03-01 | 1980-09-26 | Porsche Ag | Moteur a combustion interne comportant deux systemes d'alimentation associes a deux groupes de cylindres |
US4782690A (en) * | 1985-07-17 | 1988-11-08 | Nissan Motor Co., Ltd. | Air/fuel ratio detecting apparatus, and method of detecting normal and abnormal conditions of the sensor |
US4980834A (en) * | 1987-06-30 | 1990-12-25 | Mazda Motor Corporation | Air-to-fuel ratio control system |
DE4120426A1 (de) * | 1990-06-20 | 1992-01-09 | Mitsubishi Electric Corp | Luft-kraftstoffverhaeltnis-steuereinheit fuer einen motor |
US5182907A (en) * | 1990-09-05 | 1993-02-02 | Honda Giken Kogyo Kabushiki Kaisha | System for monitoring performance of HC sensors for internal combustion engines |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4121548A (en) * | 1976-08-08 | 1978-10-24 | Nippon Soken, Inc. | Deteriorated condition detecting apparatus for an oxygen sensor |
JPS5334017A (en) * | 1976-09-13 | 1978-03-30 | Nissan Motor Co Ltd | Control equipment of number of cylinder to be supplied fuel |
JPS6123790Y2 (fr) * | 1979-02-23 | 1986-07-16 | ||
SU1315627A1 (ru) * | 1985-04-18 | 1987-06-07 | Джезказганский Научно-Исследовательский И Проектный Институт Цветной Металлургии | Способ работы двигател внутреннего сгорани |
JPH0711435B2 (ja) * | 1985-07-23 | 1995-02-08 | トヨタ自動車株式会社 | 内燃機関のセンサ異常判定方法 |
DE3740238A1 (de) * | 1986-12-04 | 1988-06-23 | Audi Ag | Abgasanlage fuer eine brennkraftmaschine mit zwei zylinderbaenken |
JPH01217253A (ja) * | 1988-02-25 | 1989-08-30 | Nissan Motor Co Ltd | 酸素センサの故障診断装置 |
JP2668029B2 (ja) * | 1988-05-31 | 1997-10-27 | 三菱自動車工業株式会社 | 酸素センサ試験装置 |
DE3834711A1 (de) * | 1988-10-12 | 1990-04-19 | Bosch Gmbh Robert | Verfahren und vorrichtung zur fehlererkennung und/oder fehlerbehandlung bei stereo-lambdaregelung |
US4943238A (en) * | 1988-12-14 | 1990-07-24 | Interplex Electronics, Inc. | Automotive electronic instructional and diagnostic training apparatus |
US5228335A (en) * | 1991-02-25 | 1993-07-20 | The United States Of America As Represented By The United States Environmental Protection Agency | Method and apparatus for detection of catalyst failure on-board a motor vehicle using a dual oxygen sensor and an algorithm |
JP2551255B2 (ja) * | 1991-03-14 | 1996-11-06 | 日本電装株式会社 | 車両用乗員保護システムのための故障判定装置 |
DE4113316C2 (de) * | 1991-04-24 | 2003-09-11 | Bosch Gmbh Robert | Anschlußschaltung für eine Lambdasonde und Prüfverfahren für eine solche Schaltung |
JP2827719B2 (ja) * | 1992-07-16 | 1998-11-25 | 三菱自動車工業株式会社 | O2 センサの故障判定方法 |
DE4334557A1 (de) * | 1993-10-11 | 1995-04-13 | Bayerische Motoren Werke Ag | Vorrichtung zur Leerlaufregelung einer Kraftfahrzeug-Brennkraftmaschine |
-
1994
- 1994-07-04 DE DE4423344A patent/DE4423344A1/de not_active Withdrawn
-
1995
- 1995-05-12 EP EP95107229A patent/EP0691465B1/fr not_active Expired - Lifetime
- 1995-05-12 DE DE59500133T patent/DE59500133D1/de not_active Expired - Lifetime
- 1995-05-12 ES ES95107229T patent/ES2100757T3/es not_active Expired - Lifetime
- 1995-06-27 US US08/495,258 patent/US5528932A/en not_active Expired - Lifetime
- 1995-07-03 JP JP7167465A patent/JPH0842386A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450354A1 (fr) * | 1979-03-01 | 1980-09-26 | Porsche Ag | Moteur a combustion interne comportant deux systemes d'alimentation associes a deux groupes de cylindres |
US4782690A (en) * | 1985-07-17 | 1988-11-08 | Nissan Motor Co., Ltd. | Air/fuel ratio detecting apparatus, and method of detecting normal and abnormal conditions of the sensor |
US4980834A (en) * | 1987-06-30 | 1990-12-25 | Mazda Motor Corporation | Air-to-fuel ratio control system |
DE4120426A1 (de) * | 1990-06-20 | 1992-01-09 | Mitsubishi Electric Corp | Luft-kraftstoffverhaeltnis-steuereinheit fuer einen motor |
US5182907A (en) * | 1990-09-05 | 1993-02-02 | Honda Giken Kogyo Kabushiki Kaisha | System for monitoring performance of HC sensors for internal combustion engines |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0860597A3 (fr) * | 1997-02-19 | 1999-12-15 | DaimlerChrysler AG | Méthode de test des connections de sondes lambda |
US6092413A (en) * | 1997-02-19 | 2000-07-25 | Daimlerchrysler Ag | Method for testing correctly connected lambda sensors |
EP0897054A1 (fr) * | 1997-08-11 | 1999-02-17 | Daimler-Benz Aktiengesellschaft | Procédé pour détecter la permutation de sondes lambda. |
US6167754B1 (en) | 1997-08-11 | 2001-01-02 | Daimler-Chrysler Ag | Method of checking lambda sensor connections in multicylinder internal combustion engines |
EP1247966A3 (fr) * | 2001-04-06 | 2004-12-22 | Audi Ag | Méthode pour détecter la permutation de sondes à oxygène |
FR2859241A1 (fr) * | 2003-08-25 | 2005-03-04 | Volkswagen Ag | Procede et dispositif destines a l'etablissement d'un diagnostic d'interversion de sondes lambda |
WO2007012608A1 (fr) * | 2005-07-28 | 2007-02-01 | Siemens Aktiengesellschaft | Procede et dispositif pour allouer plusieurs detecteurs d'un type a des objets a mesurer de moteur a combustion interne |
EP2065581A1 (fr) | 2007-11-27 | 2009-06-03 | Caterpillar, Inc. | Système et procédé de détection d'un défaut d'assemblage du système post-traitement d'échappement d'une machine |
US7693648B2 (en) | 2007-11-27 | 2010-04-06 | Caterpillar Inc. | System and method for detecting misassembly of an exhaust aftertreatment system of a machine |
Also Published As
Publication number | Publication date |
---|---|
EP0691465B1 (fr) | 1997-03-12 |
ES2100757T3 (es) | 1997-06-16 |
DE4423344A1 (de) | 1996-01-11 |
EP0691465A3 (fr) | 1996-01-17 |
JPH0842386A (ja) | 1996-02-13 |
DE59500133D1 (de) | 1997-04-17 |
US5528932A (en) | 1996-06-25 |
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