EP2336532A3 - Method for detecting the readiness of a lambda probe for functions in selected operating phases - Google Patents

Method for detecting the readiness of a lambda probe for functions in selected operating phases Download PDF

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Publication number
EP2336532A3
EP2336532A3 EP10193702.7A EP10193702A EP2336532A3 EP 2336532 A3 EP2336532 A3 EP 2336532A3 EP 10193702 A EP10193702 A EP 10193702A EP 2336532 A3 EP2336532 A3 EP 2336532A3
Authority
EP
European Patent Office
Prior art keywords
functions
lambda probe
detecting
selected operating
readiness
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.)
Withdrawn
Application number
EP10193702.7A
Other languages
German (de)
French (fr)
Other versions
EP2336532A2 (en
Inventor
Andreas Michalske
Thomas Steinert
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2336532A2 publication Critical patent/EP2336532A2/en
Publication of EP2336532A3 publication Critical patent/EP2336532A3/en
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • F02D41/2454—Learning of the air-fuel ratio control
    • 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
    • F02D41/24—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Bei einem Verfahren zur Erkennung der Betriebsbereitschaft einer Lambdasonde (130) für Funktionen in ausgewählten Betriebsphasen einer Brennkraftmaschine (110) wird bei einem Übergang der Brennkraftmaschine von einer Betriebsphase in die ausgewählte Betriebsphase der Zeitgradient des die Sauerstoffkonzentration charakterisierenden Sondensignals erfasst und dann, wenn der Zeitgradient gegen Null geht, auf das Vorliegen der Betriebsbereitschaft der Lambdasonde (130) für Funktionen in der ausgewählten Betriebsphase der Brennkraftmaschine (110) geschlossen.

Figure imgaf001
In a method for detecting the operational readiness of a lambda probe (130) for functions in selected operating phases of an internal combustion engine (110), the time gradient of the oxygen concentration characterizing probe signal is detected during a transition of the internal combustion engine from one operating phase to the selected operating phase and then when the time gradient Zero, upon the presence of the operational readiness of the lambda probe (130) for functions in the selected phase of operation of the internal combustion engine (110) closed.
Figure imgaf001
EP10193702.7A 2009-12-16 2010-12-03 Method for detecting the readiness of a lambda probe for functions in selected operating phases Withdrawn EP2336532A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009054751.7A DE102009054751B4 (en) 2009-12-16 2009-12-16 Procedure for detecting the readiness for operation of a lambda probe for functions in selected operating phases

Publications (2)

Publication Number Publication Date
EP2336532A2 EP2336532A2 (en) 2011-06-22
EP2336532A3 true EP2336532A3 (en) 2014-06-18

Family

ID=43797710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10193702.7A Withdrawn EP2336532A3 (en) 2009-12-16 2010-12-03 Method for detecting the readiness of a lambda probe for functions in selected operating phases

Country Status (3)

Country Link
EP (1) EP2336532A3 (en)
CN (1) CN102102593B (en)
DE (1) DE102009054751B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011088296A1 (en) * 2011-12-12 2013-06-13 Robert Bosch Gmbh Method and device for monitoring the dynamics of gas sensors
JP6256240B2 (en) 2014-07-28 2018-01-10 トヨタ自動車株式会社 Control device for internal combustion engine
FR3062167B1 (en) * 2017-01-26 2020-06-12 Renault S.A.S METHOD AND DEVICE FOR CALIBRATING AN OXYGEN SENSOR.
CN106837569B (en) * 2017-02-17 2019-08-20 中国第一汽车股份有限公司 A kind of automobile-used broad domain oxygen sensor ageing failure diagnosis method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548071A1 (en) * 1994-12-28 1996-07-04 Nippon Denso Co Self-diagnosis of air-fuel mixture for motor vehicle IC engine
EP1048834A2 (en) * 1999-04-28 2000-11-02 Siemens Aktiengesellschaft Method for correcting the characteristic curve of a linear lambda sensor
EP1748173A2 (en) * 2005-07-28 2007-01-31 Denso Corporation Internal combustion engine controller
EP1961942A2 (en) * 2007-02-21 2008-08-27 Ngk Spark Plug Co., Ltd. Diagnostic method and control apparatus for gas sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243493A1 (en) 1992-12-22 1994-06-23 Bosch Gmbh Robert Method and device for monitoring a control device
DE19842425C2 (en) 1998-09-16 2003-10-02 Siemens Ag Method for correcting the characteristic of a linear lambda probe
DE102005056152A1 (en) 2005-11-23 2007-05-24 Robert Bosch Gmbh Method for calibrating the signal provided by a broadband lambda sensor and apparatus for carrying out the method
DE102006011837B4 (en) 2006-03-15 2017-01-19 Robert Bosch Gmbh Method for determining a gas concentration in a measuring gas with a gas sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548071A1 (en) * 1994-12-28 1996-07-04 Nippon Denso Co Self-diagnosis of air-fuel mixture for motor vehicle IC engine
EP1048834A2 (en) * 1999-04-28 2000-11-02 Siemens Aktiengesellschaft Method for correcting the characteristic curve of a linear lambda sensor
EP1748173A2 (en) * 2005-07-28 2007-01-31 Denso Corporation Internal combustion engine controller
EP1961942A2 (en) * 2007-02-21 2008-08-27 Ngk Spark Plug Co., Ltd. Diagnostic method and control apparatus for gas sensor

Also Published As

Publication number Publication date
EP2336532A2 (en) 2011-06-22
DE102009054751A1 (en) 2011-06-22
CN102102593A (en) 2011-06-22
CN102102593B (en) 2015-10-21
DE102009054751B4 (en) 2022-03-03

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