BR9502367A - Sistema eletrônico de controle de concentraçao - Google Patents

Sistema eletrônico de controle de concentraçao

Info

Publication number
BR9502367A
BR9502367A BR9502367A BR9502367A BR9502367A BR 9502367 A BR9502367 A BR 9502367A BR 9502367 A BR9502367 A BR 9502367A BR 9502367 A BR9502367 A BR 9502367A BR 9502367 A BR9502367 A BR 9502367A
Authority
BR
Brazil
Prior art keywords
control system
concentration control
electronic concentration
electronic
control
Prior art date
Application number
BR9502367A
Other languages
English (en)
Inventor
Claudio Carnevale
Davide Coin
Stefano Marica
Gabriele Serra
Stefano Sgatti
Original Assignee
Magneti Marelli Spa
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 Magneti Marelli Spa filed Critical Magneti Marelli Spa
Publication of BR9502367A publication Critical patent/BR9502367A/pt

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
    • F02D41/1477—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)
    • F02D41/1482—Integrator, i.e. variable slope
    • 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

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)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Exhaust Gas After Treatment (AREA)
BR9502367A 1994-07-19 1995-07-18 Sistema eletrônico de controle de concentraçao BR9502367A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO940593A IT1273044B (it) 1994-07-19 1994-07-19 Sistema elettronico di controllo titolo della miscela aria benzina alimentata ad un motore a combustione interna

Publications (1)

Publication Number Publication Date
BR9502367A true BR9502367A (pt) 1996-02-27

Family

ID=11412684

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9502367A BR9502367A (pt) 1994-07-19 1995-07-18 Sistema eletrônico de controle de concentraçao

Country Status (6)

Country Link
US (1) US5697214A (pt)
EP (1) EP0694685B1 (pt)
BR (1) BR9502367A (pt)
DE (1) DE69506330T2 (pt)
ES (1) ES2128618T3 (pt)
IT (1) IT1273044B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1073040A (ja) * 1996-08-29 1998-03-17 Honda Motor Co Ltd 内燃機関の空燃比制御装置
US6003307A (en) * 1998-02-06 1999-12-21 Engelhard Corporation OBD calorimetric sensor system with offset error correction
JP2004019542A (ja) * 2002-06-17 2004-01-22 Toyota Motor Corp 酸素センサの異常検出装置
US9230371B2 (en) * 2013-09-19 2016-01-05 GM Global Technology Operations LLC Fuel control diagnostic systems and methods

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709215A1 (de) * 1977-03-03 1978-09-07 Bosch Gmbh Robert Ueberwachungsschaltung fuer die abgaszusammensetzung bei brennkraftmaschinen
DE2916178C2 (de) * 1979-04-21 1982-04-22 Dornier System Gmbh, 7990 Friedrichshafen Sonde zur Messung des Sauerstoffpartialdrucks in Gasen
CA1268529A (en) * 1985-07-31 1990-05-01 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
DE3637304A1 (de) * 1986-08-23 1988-05-05 Vdo Schindling Verfahren und schaltungsanordnung zur erkennung der betriebsbereitschaft einer sauerstoffmesssonde
JPS6383415U (pt) * 1986-11-20 1988-06-01
JPH0331546A (ja) * 1989-06-27 1991-02-12 Mitsubishi Motors Corp 内燃機関の空燃比制御装置
JPH0718368B2 (ja) * 1990-04-02 1995-03-06 トヨタ自動車株式会社 内燃機関の触媒劣化検出装置
US5357750A (en) * 1990-04-12 1994-10-25 Ngk Spark Plug Co., Ltd. Method for detecting deterioration of catalyst and measuring conversion efficiency thereof with an air/fuel ratio sensor
DE4039429A1 (de) * 1990-12-11 1992-06-17 Abb Patent Gmbh Verfahren und vorrichtung zur ueberpruefung eines katalysators
US5115639A (en) * 1991-06-28 1992-05-26 Ford Motor Company Dual EGO sensor closed loop fuel control
JP3122856B2 (ja) * 1991-12-13 2001-01-09 マツダ株式会社 空燃比検出装置の故障検出装置およびエンジンの制御装置
US5337555A (en) * 1991-12-13 1994-08-16 Mazda Motor Corporation Failure detection system for air-fuel ratio control system
US5337557A (en) * 1992-02-29 1994-08-16 Suzuki Motor Corporation Air-fuel ratio control device for internal combustion engine
JP3300012B2 (ja) * 1992-03-16 2002-07-08 マツダ株式会社 エンジンの排気浄化装置
JPH05296088A (ja) * 1992-04-16 1993-11-09 Nippondenso Co Ltd 内燃機関の異常検出装置
JP2978960B2 (ja) * 1992-07-31 1999-11-15 本田技研工業株式会社 内燃エンジンの酸素センサ劣化検出装置
DE4331153C2 (de) * 1992-09-26 2001-02-01 Volkswagen Ag Verfahren zur Gewinnung von fehlerspezifischen Beurteilungskriterien eines Abgaskatalysators und einer Regel-Lambdasonde
US5282360A (en) * 1992-10-30 1994-02-01 Ford Motor Company Post-catalyst feedback control
JP3197654B2 (ja) * 1993-01-21 2001-08-13 本田技研工業株式会社 内燃エンジンの空燃比センサ劣化検出装置

Also Published As

Publication number Publication date
DE69506330T2 (de) 1999-08-26
EP0694685A2 (en) 1996-01-31
ITTO940593A1 (it) 1996-01-19
US5697214A (en) 1997-12-16
EP0694685A3 (en) 1996-09-18
ES2128618T3 (es) 1999-05-16
EP0694685B1 (en) 1998-12-02
ITTO940593A0 (it) 1994-07-19
IT1273044B (it) 1997-07-01
DE69506330D1 (de) 1999-01-14

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 18/07/2015