FR2950975B1 - METHOD FOR MANAGING LAMBDA PROBES AND DEVICE FOR IMPLEMENTING THE METHOD - Google Patents

METHOD FOR MANAGING LAMBDA PROBES AND DEVICE FOR IMPLEMENTING THE METHOD

Info

Publication number
FR2950975B1
FR2950975B1 FR1058042A FR1058042A FR2950975B1 FR 2950975 B1 FR2950975 B1 FR 2950975B1 FR 1058042 A FR1058042 A FR 1058042A FR 1058042 A FR1058042 A FR 1058042A FR 2950975 B1 FR2950975 B1 FR 2950975B1
Authority
FR
France
Prior art keywords
managing
oxygen
lambda
implementing
lambda probe
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
Application number
FR1058042A
Other languages
French (fr)
Other versions
FR2950975A1 (en
Inventor
Goetz Reinhardt
Martin Buchholz
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 FR2950975A1 publication Critical patent/FR2950975A1/en
Application granted granted Critical
Publication of FR2950975B1 publication Critical patent/FR2950975B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • G01N27/419—Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

The method involves moving a measure gas chamber to a reference gas channel based on oxygen concentration in the measure gas chamber with negative or positive pumping current corresponding to oxygen ion current. The reference gas channel is moved to the measure gas chamber. Oxygen filling level in the reference gas channel is measured by an oxygen determination unit (180). The measured oxygen filling level is compared with the threshold value by the oxygen determination unit. Independent claims are also included for the following: (1) a device for managing a lambda probe comprising a control apparatus (2) a computer program comprising instructions for executing a method for managing a lambda probe measuring lambda coefficient of exhaust gas (3) a computer program product comprising a program code recorded on a medium readable by a machine for implementing a method for managing a lambda probe measuring lambda coefficient of exhaust gas.
FR1058042A 2009-10-07 2010-10-05 METHOD FOR MANAGING LAMBDA PROBES AND DEVICE FOR IMPLEMENTING THE METHOD Active FR2950975B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910045445 DE102009045445A1 (en) 2009-10-07 2009-10-07 Lambda probe operating method and apparatus for carrying out the method

Publications (2)

Publication Number Publication Date
FR2950975A1 FR2950975A1 (en) 2011-04-08
FR2950975B1 true FR2950975B1 (en) 2014-01-17

Family

ID=43734437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1058042A Active FR2950975B1 (en) 2009-10-07 2010-10-05 METHOD FOR MANAGING LAMBDA PROBES AND DEVICE FOR IMPLEMENTING THE METHOD

Country Status (4)

Country Link
JP (1) JP5599688B2 (en)
CN (1) CN102033091B (en)
DE (1) DE102009045445A1 (en)
FR (1) FR2950975B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012219282A1 (en) * 2012-10-23 2014-04-24 Robert Bosch Gmbh Method and device for diagnosing the air reference channel of a broadband lambda probe
DE102018214958A1 (en) * 2018-09-04 2020-03-05 Robert Bosch Gmbh Method for detecting poisoning of an exhaust gas sensor
JP7128090B2 (en) * 2018-11-16 2022-08-30 日本特殊陶業株式会社 Sensor control device and sensor control method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3674292B2 (en) * 1997-06-19 2005-07-20 株式会社デンソー Air-fuel ratio detection device
DE19838466A1 (en) 1998-08-25 2000-03-02 Bosch Gmbh Robert Control system for a diffusion type oxygen measurement cell, e.g. used in exhaust gas streams to control fuel mixture supplied to IC engine
DE10029794C2 (en) * 2000-06-16 2002-04-18 Siemens Ag Device for operating a linear lambda probe
DE10163912B4 (en) 2001-04-05 2016-07-21 Robert Bosch Gmbh Gas sensor, in particular lambda probe
JP3554551B2 (en) * 2001-12-05 2004-08-18 伸栄ゴム株式会社 Film balloons
DE10216724C1 (en) 2002-04-16 2003-10-09 Bosch Gmbh Robert Operating broadband lambda probe for determining oxygen concentration in I.C. engine exhaust gas, involves repeatedly changing poles of pump voltage over duration of fuel injection step
DE10257284A1 (en) * 2002-12-07 2004-06-24 Robert Bosch Gmbh Circuit arrangement, for gas sensor e.g. in engine exhaust, comprises reference gas chamber containing reference electrode, flow source for feeding reference gas flow to electrode, and diagnostic arrangement containing constant-time device
WO2004070374A1 (en) * 2003-01-30 2004-08-19 Innovate! Technology, Inc. Apparatus and method for measuring an oxygen concentration of a gas
JP2004340859A (en) * 2003-05-19 2004-12-02 Hitachi Unisia Automotive Ltd Method of determining activation of oxygen sensor
DE102005006501A1 (en) * 2005-02-14 2006-08-24 Robert Bosch Gmbh Gas sensor
DE102005050269A1 (en) * 2005-06-22 2007-01-04 Robert Bosch Gmbh Method for determining lambda values with a broadband lambda probe
DE102006061954A1 (en) 2006-12-29 2008-07-03 Robert Bosch Gmbh Gas component measuring method for motor vehicle, involves charging anode and cathode with regulating pump current, which is directed against regulating Nernst current, and measuring pumping current signal between anode and cathode
DE102006062060A1 (en) * 2006-12-29 2008-07-03 Robert Bosch Gmbh Sensor e.g. lambda sensor, unit for determining oxygen concentration of exhaust gas of e.g. diesel engine vehicle, has electrodes arranged within unit, where one electrode is connected with reference gas chamber over exhaust channel
DE102008002735A1 (en) 2008-06-27 2009-12-31 Robert Bosch Gmbh Sensor element of a lambda probe

Also Published As

Publication number Publication date
FR2950975A1 (en) 2011-04-08
DE102009045445A1 (en) 2011-04-14
CN102033091B (en) 2014-09-10
CN102033091A (en) 2011-04-27
JP2011080992A (en) 2011-04-21
JP5599688B2 (en) 2014-10-01

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