DE3475420D1 - Air/fuel ratio monitoring system in ic engine using oxygen sensor - Google Patents

Air/fuel ratio monitoring system in ic engine using oxygen sensor

Info

Publication number
DE3475420D1
DE3475420D1 DE8484111081T DE3475420T DE3475420D1 DE 3475420 D1 DE3475420 D1 DE 3475420D1 DE 8484111081 T DE8484111081 T DE 8484111081T DE 3475420 T DE3475420 T DE 3475420T DE 3475420 D1 DE3475420 D1 DE 3475420D1
Authority
DE
Germany
Prior art keywords
engine
air
monitoring system
fuel ratio
oxygen sensor
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.)
Expired
Application number
DE8484111081T
Other languages
English (en)
Inventor
Tsuyoshi Kitahara
Kohki Sone
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Application granted granted Critical
Publication of DE3475420D1 publication Critical patent/DE3475420D1/de
Expired 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
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference
    • 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
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • F02D41/1476—Biasing of the sensor

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)
  • Measuring Oxygen Concentration In Cells (AREA)
DE8484111081T 1983-09-29 1984-09-17 Air/fuel ratio monitoring system in ic engine using oxygen sensor Expired DE3475420D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58181397A JPS6073023A (ja) 1983-09-29 1983-09-29 空燃比制御装置

Publications (1)

Publication Number Publication Date
DE3475420D1 true DE3475420D1 (en) 1989-01-05

Family

ID=16100025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484111081T Expired DE3475420D1 (en) 1983-09-29 1984-09-17 Air/fuel ratio monitoring system in ic engine using oxygen sensor

Country Status (4)

Country Link
US (1) US4601273A (de)
EP (1) EP0139218B1 (de)
JP (1) JPS6073023A (de)
DE (1) DE3475420D1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2513458B2 (ja) * 1985-05-27 1996-07-03 本田技研工業株式会社 エンジンの空燃比検出装置
JPH0718359B2 (ja) * 1987-03-14 1995-03-01 株式会社日立製作所 エンジンの空燃比制御方法
DE3743315A1 (de) * 1987-12-21 1989-06-29 Bosch Gmbh Robert Auswerteinrichtung fuer das messsignal einer lambdasonde
DE3909884C2 (de) * 1988-03-31 1995-02-09 Vaillant Joh Gmbh & Co Vorrichtung zur Überprüfung der Funktionsfähigkeit eines in einer Abgasführung eines brennerbeheizten Gerätes angeordneten Abgassensors
US5222471A (en) * 1992-09-18 1993-06-29 Kohler Co. Emission control system for an internal combustion engine
JPH0417758A (ja) * 1990-05-08 1992-01-22 Honda Motor Co Ltd 内燃機関の三元触媒の劣化検出方法
DE4317942C2 (de) * 1992-06-01 1995-02-23 Hitachi Ltd Anordnung und Verfahren zur Erfassung des Verbrennungsluftverhältnisses für Verbrennungskraftmaschinen
DE4226540A1 (de) * 1992-08-11 1994-04-21 Bosch Gmbh Robert Polarographischer Sensor
US5251605A (en) * 1992-12-11 1993-10-12 Ford Motor Company Air-fuel control having two stages of operation
US7161678B2 (en) * 2002-05-30 2007-01-09 Florida Power And Light Company Systems and methods for determining the existence of a visible plume from the chimney of a facility burning carbon-based fuels
US6860144B2 (en) * 2003-02-18 2005-03-01 Daimlerchrysler Corporation Oxygen sensor monitoring arrangement
US7124041B1 (en) * 2004-09-27 2006-10-17 Siemens Energy & Automotive, Inc. Systems, methods, and devices for detecting circuit faults
US7167791B2 (en) * 2004-09-27 2007-01-23 Ford Global Technologies, Llc Oxygen depletion sensing for a remote starting vehicle
JP4493702B2 (ja) * 2008-05-28 2010-06-30 三菱電機株式会社 内燃機関の制御装置
US9328684B2 (en) 2013-09-19 2016-05-03 Ford Global Technologies, Llc Methods and systems for an intake oxygen sensor
US9482189B2 (en) 2013-09-19 2016-11-01 Ford Global Technologies, Llc Methods and systems for an intake oxygen sensor
US9957906B2 (en) 2013-11-06 2018-05-01 Ford Gloabl Technologies, LLC Methods and systems for PCV flow estimation with an intake oxygen sensor
US9322367B2 (en) 2014-01-14 2016-04-26 Ford Global Technologies, Llc Methods and systems for fuel canister purge flow estimation with an intake oxygen sensor
US9441564B2 (en) * 2014-04-14 2016-09-13 Ford Global Technologies, Llc Methods and systems for adjusting EGR based on an impact of PCV hydrocarbons on an intake oxygen sensor
US9234476B2 (en) 2014-04-14 2016-01-12 Ford Global Technologies, Llc Methods and systems for determining a fuel concentration in engine oil using an intake oxygen sensor
US11139256B2 (en) * 2019-08-21 2021-10-05 Micron Technology, Inc. Tamper-resistant integrated circuits, and related methods

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1524361A (en) * 1974-10-21 1978-09-13 Nissan Motor Apparatus for controlling the air-fuel mixture ratio of internal combustion engine
CA1015827A (en) * 1974-11-18 1977-08-16 General Motors Corporation Air/fuel ratio sensor having catalytic and noncatalytic electrodes
JPS5297028A (en) * 1976-02-12 1977-08-15 Nissan Motor Co Ltd Air fuel ratio controller
JPS6053770B2 (ja) * 1978-02-09 1985-11-27 トヨタ自動車株式会社 内燃機関用の空燃比制御装置
JPS584986B2 (ja) * 1978-06-16 1983-01-28 日産自動車株式会社 酸素濃度測定装置
JPS5748649A (en) * 1980-09-08 1982-03-20 Nissan Motor Co Ltd Controller for air-to-fuel ratio of internal combustion engine
JPS58144649A (ja) * 1982-01-29 1983-08-29 Nissan Motor Co Ltd 空燃比制御装置
JPS59142449A (ja) * 1983-02-04 1984-08-15 Hitachi Ltd 空燃比検出装置
US4502444A (en) * 1983-07-19 1985-03-05 Engelhard Corporation Air-fuel ratio controller

Also Published As

Publication number Publication date
EP0139218B1 (de) 1988-11-30
EP0139218A3 (en) 1986-08-27
JPH0355660B2 (de) 1991-08-26
US4601273A (en) 1986-07-22
EP0139218A2 (de) 1985-05-02
JPS6073023A (ja) 1985-04-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee