EP1247966A3 - Method for testing the switching time of O2-sensors - Google Patents
Method for testing the switching time of O2-sensors Download PDFInfo
- Publication number
- EP1247966A3 EP1247966A3 EP02003958A EP02003958A EP1247966A3 EP 1247966 A3 EP1247966 A3 EP 1247966A3 EP 02003958 A EP02003958 A EP 02003958A EP 02003958 A EP02003958 A EP 02003958A EP 1247966 A3 EP1247966 A3 EP 1247966A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensors
- testing
- switching time
- fuel injection
- fuel
- 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
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
- F02D41/1439—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
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Testing Of Engines (AREA)
Abstract
Verfahren zur Erkennung vertauscht angeschlossener O2-Sensoren, die im Abgasstrang einer Brennkraftmaschine hintereinander angeordnet und an eine Regeleinrichtung für die Kraftstoffeinspritzung angeschlossen sind, dadurch gekennzeichnet, daß die Kraftstoffeinspritzung während eines Prüfzeitraums abgeschaltet oder das Kraftstoff-Luft-Verhältnis verändert wird und die Reaktionszeiten bis zum Auftreten der dadurch bedingten Signaländerungen der O2-Sensoren gemessen und ausgewertet werden. Method for detecting interchanged O 2 sensors, which are arranged one behind the other in the exhaust line of an internal combustion engine and are connected to a control device for fuel injection, characterized in that the fuel injection is switched off during a test period or the fuel-air ratio is changed and the reaction times up to the occurrence of the resulting signal changes of the O 2 sensors are measured and evaluated.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001117244 DE10117244A1 (en) | 2001-04-06 | 2001-04-06 | Procedure for detecting swapped connected O¶2¶ sensors |
DE10117244 | 2001-04-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1247966A2 EP1247966A2 (en) | 2002-10-09 |
EP1247966A3 true EP1247966A3 (en) | 2004-12-22 |
EP1247966B1 EP1247966B1 (en) | 2006-05-17 |
Family
ID=7680669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020003958 Expired - Fee Related EP1247966B1 (en) | 2001-04-06 | 2002-02-22 | Method for testing the switching time of O2-sensors |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1247966B1 (en) |
DE (2) | DE10117244A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10331333B4 (en) * | 2003-07-10 | 2016-01-14 | Volkswagen Ag | Method for operating an internal combustion engine |
DE10331331B4 (en) * | 2003-07-10 | 2012-03-01 | Volkswagen Ag | Method for operating an internal combustion engine |
DE10331334B4 (en) * | 2003-07-10 | 2012-12-20 | Volkswagen Ag | Method for operating an internal combustion engine |
DE10339325A1 (en) | 2003-08-25 | 2005-03-31 | Volkswagen Ag | Method and device for commutation diagnosis of lambda probes |
EP1724458A1 (en) * | 2005-05-19 | 2006-11-22 | Delphi Technologies, Inc. | Method and apparatus for diagnosing a measured value |
DE102005035423B4 (en) * | 2005-07-28 | 2010-12-02 | Continental Automotive Gmbh | Method and device for assigning a plurality of sensors of a sensor type to measurement objects of an internal combustion engine |
JP4539554B2 (en) | 2005-12-26 | 2010-09-08 | 株式会社デンソー | Exhaust gas purification device for internal combustion engine |
DE102008004207A1 (en) * | 2008-01-14 | 2009-07-16 | Robert Bosch Gmbh | Method and control unit for checking an exhaust aftertreatment system of an internal combustion engine |
DE102012007159A1 (en) | 2012-04-07 | 2012-10-18 | Daimler Ag | Exhaust system for internal combustion engine of vehicle, has predetermined mounting positions for multiple exhaust gas sensors and electronic control unit with electrical connection ports for connection of exhaust gas sensor |
DE102016222009B4 (en) | 2015-12-22 | 2021-09-30 | Ford Global Technologies, Llc | Monitoring of the aging condition of a catalytic converter |
KR102107710B1 (en) * | 2016-02-10 | 2020-05-07 | 스카니아 씨브이 악티에볼라그 | Systems and methods for diagnosing exhaust sensors |
CN111042900A (en) * | 2018-10-12 | 2020-04-21 | 罗伯特·博世有限公司 | Method for detecting the installation position of a nitrogen oxide sensor, storage medium, electronic control unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0691465A2 (en) * | 1994-07-04 | 1996-01-10 | Bayerische Motoren Werke Aktiengesellschaft | Method to detect cross-connected lambda sensors |
DE19734670C1 (en) * | 1997-08-11 | 1999-05-27 | Daimler Chrysler Ag | Exchanging test for lambda sensors |
US6092413A (en) * | 1997-02-19 | 2000-07-25 | Daimlerchrysler Ag | Method for testing correctly connected lambda sensors |
DE10026213A1 (en) * | 2000-05-26 | 2001-11-29 | Volkswagen Ag | Configuring combustion engine lambda probes by detecting to which controller inputs lambda probes are connected, controller providing correct association of probes and cylinder banks |
-
2001
- 2001-04-06 DE DE2001117244 patent/DE10117244A1/en not_active Withdrawn
-
2002
- 2002-02-22 EP EP20020003958 patent/EP1247966B1/en not_active Expired - Fee Related
- 2002-02-22 DE DE50206777T patent/DE50206777D1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0691465A2 (en) * | 1994-07-04 | 1996-01-10 | Bayerische Motoren Werke Aktiengesellschaft | Method to detect cross-connected lambda sensors |
US6092413A (en) * | 1997-02-19 | 2000-07-25 | Daimlerchrysler Ag | Method for testing correctly connected lambda sensors |
DE19734670C1 (en) * | 1997-08-11 | 1999-05-27 | Daimler Chrysler Ag | Exchanging test for lambda sensors |
DE10026213A1 (en) * | 2000-05-26 | 2001-11-29 | Volkswagen Ag | Configuring combustion engine lambda probes by detecting to which controller inputs lambda probes are connected, controller providing correct association of probes and cylinder banks |
Also Published As
Publication number | Publication date |
---|---|
DE10117244A1 (en) | 2002-11-07 |
DE50206777D1 (en) | 2006-06-22 |
EP1247966B1 (en) | 2006-05-17 |
EP1247966A2 (en) | 2002-10-09 |
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