EP2619432A1 - Method and device for monitoring the function of an exhaust sensor - Google Patents
Method and device for monitoring the function of an exhaust sensorInfo
- Publication number
- EP2619432A1 EP2619432A1 EP11760736.6A EP11760736A EP2619432A1 EP 2619432 A1 EP2619432 A1 EP 2619432A1 EP 11760736 A EP11760736 A EP 11760736A EP 2619432 A1 EP2619432 A1 EP 2619432A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- gas sensor
- combustion engine
- internal combustion
- operating point
- 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
- F02D41/1493—Details
- F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
- F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
-
- 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
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2474—Characteristics of 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
- F02D41/04—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
Definitions
- the second operating point can be unambiguously specified by the fact that the second operating point of the internal combustion engine by a speed or an injection quantity or an air mass or an exhaust gas recirculation state considered individually or in combination of the sizes.
- the method and the device can preferably be used for monitoring a lambda probe.
- FIG. 2 shows a second flow chart of a second program sequence for monitoring the function of the exhaust gas sensor designed as a broadband lambda probe in the technical environment described for FIG.
- This second program sequence is also stored in the control unit.
- the second program sequence is activated if the learning values for the second operating point are determined by the first program sequence described in FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041311A DE102010041311A1 (en) | 2010-09-24 | 2010-09-24 | Method and device for monitoring the function of an exhaust gas sensor |
PCT/EP2011/065467 WO2012038256A1 (en) | 2010-09-24 | 2011-09-07 | Method and device for monitoring the function of an exhaust sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2619432A1 true EP2619432A1 (en) | 2013-07-31 |
EP2619432B1 EP2619432B1 (en) | 2015-06-03 |
Family
ID=44675558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11760736.6A Not-in-force EP2619432B1 (en) | 2010-09-24 | 2011-09-07 | Method and device for monitoring the function of an exhaust sensor |
Country Status (6)
Country | Link |
---|---|
US (1) | US9494073B2 (en) |
EP (1) | EP2619432B1 (en) |
JP (1) | JP5432422B2 (en) |
CN (1) | CN103109066B (en) |
DE (1) | DE102010041311A1 (en) |
WO (1) | WO2012038256A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013201316A1 (en) | 2012-02-06 | 2013-08-08 | Robert Bosch Gmbh | Method for calibration of exhaust probes and fuel metering devices |
JP6090092B2 (en) * | 2013-10-01 | 2017-03-08 | トヨタ自動車株式会社 | Air-fuel ratio sensor abnormality diagnosis device |
JPWO2016098227A1 (en) * | 2014-12-18 | 2017-09-07 | 三菱自動車工業株式会社 | Hybrid vehicle failure determination device |
US9657674B2 (en) * | 2015-03-06 | 2017-05-23 | Ford Global Technologies, Llc | Method and system for determining air-fuel ratio imbalance |
DE102016125196A1 (en) * | 2016-12-21 | 2018-06-21 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Method for derailment detection based on wheel speed signals |
CN107023367B (en) * | 2017-03-29 | 2019-04-12 | 北京航空航天大学 | A kind of SCR system of diesel engine ammonia input pickup fault diagnosis and fault tolerant control method |
CN108798849B (en) * | 2017-04-26 | 2021-01-19 | 上汽通用汽车有限公司 | Vehicle catalyst idle speed diagnostic systems and methods |
US11346264B2 (en) * | 2019-08-29 | 2022-05-31 | Cummins Emission Solutions Inc. | Systems and methods for controlling exhaust gas aftertreatment sensor systems |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62250351A (en) * | 1986-04-23 | 1987-10-31 | Honda Motor Co Ltd | Detection of abnormality in exhaust gas density sensor for internal combustion engine |
JP3227153B2 (en) * | 1990-09-05 | 2001-11-12 | 本田技研工業株式会社 | Deterioration detection device for HC sensor of internal combustion engine |
JP2893308B2 (en) * | 1993-07-26 | 1999-05-17 | 株式会社ユニシアジェックス | Air-fuel ratio control device for internal combustion engine |
JP2858288B2 (en) * | 1993-09-02 | 1999-02-17 | 株式会社ユニシアジェックス | Self-diagnosis device in air-fuel ratio control device of internal combustion engine |
DE4335700A1 (en) * | 1993-10-20 | 1995-04-27 | Bosch Gmbh Robert | Method and device for monitoring the function of a sensor |
JPH08177575A (en) * | 1994-12-28 | 1996-07-09 | Nippondenso Co Ltd | Self-diagnostic device for air-fuel ratio control device for internal combustion engine |
FR2769985B1 (en) * | 1997-10-17 | 1999-12-31 | Renault | METHOD AND SYSTEM FOR MONITORING THE OPERATION AND AGING OF A LINEAR OXYGEN SENSOR |
JP3500976B2 (en) * | 1998-08-06 | 2004-02-23 | 株式会社デンソー | Abnormality diagnosis device for gas concentration sensor |
WO2002068807A1 (en) * | 2001-02-26 | 2002-09-06 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Exhaust gas purifier for internal combustion engines |
US6736121B2 (en) * | 2002-06-04 | 2004-05-18 | Ford Global Technologies, Llc | Method for air-fuel ratio sensor diagnosis |
US6925796B2 (en) * | 2003-11-19 | 2005-08-09 | Ford Global Technologies, Llc | Diagnosis of a urea SCR catalytic system |
EP1724458A1 (en) * | 2005-05-19 | 2006-11-22 | Delphi Technologies, Inc. | Method and apparatus for diagnosing a measured value |
JP4321520B2 (en) | 2005-12-28 | 2009-08-26 | トヨタ自動車株式会社 | POWER OUTPUT DEVICE, VEHICLE MOUNTING THE SAME, AND METHOD FOR CONTROLLING POWER OUTPUT DEVICE |
US7444235B2 (en) * | 2007-02-06 | 2008-10-28 | Gm Global Technology Operations, Inc. | Post catalyst oxygen sensor diagnostic |
JP4240132B2 (en) * | 2007-04-18 | 2009-03-18 | 株式会社デンソー | Control device for internal combustion engine |
JP5519159B2 (en) * | 2009-02-03 | 2014-06-11 | トヨタ自動車株式会社 | Hybrid vehicle and control method thereof |
-
2010
- 2010-09-24 DE DE102010041311A patent/DE102010041311A1/en not_active Withdrawn
-
2011
- 2011-09-07 EP EP11760736.6A patent/EP2619432B1/en not_active Not-in-force
- 2011-09-07 JP JP2013529606A patent/JP5432422B2/en not_active Expired - Fee Related
- 2011-09-07 US US13/825,931 patent/US9494073B2/en active Active
- 2011-09-07 CN CN201180046130.3A patent/CN103109066B/en not_active Expired - Fee Related
- 2011-09-07 WO PCT/EP2011/065467 patent/WO2012038256A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012038256A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012038256A1 (en) | 2012-03-29 |
JP5432422B2 (en) | 2014-03-05 |
CN103109066A (en) | 2013-05-15 |
US9494073B2 (en) | 2016-11-15 |
DE102010041311A1 (en) | 2012-03-29 |
US20130269316A1 (en) | 2013-10-17 |
EP2619432B1 (en) | 2015-06-03 |
JP2013537952A (en) | 2013-10-07 |
CN103109066B (en) | 2015-11-25 |
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