WO2008029256A3 - Appareil de commande de rapport air-carburant et procédé de commande de rapport air-carburant pour moteur à combustion interne - Google Patents

Appareil de commande de rapport air-carburant et procédé de commande de rapport air-carburant pour moteur à combustion interne Download PDF

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Publication number
WO2008029256A3
WO2008029256A3 PCT/IB2007/002558 IB2007002558W WO2008029256A3 WO 2008029256 A3 WO2008029256 A3 WO 2008029256A3 IB 2007002558 W IB2007002558 W IB 2007002558W WO 2008029256 A3 WO2008029256 A3 WO 2008029256A3
Authority
WO
WIPO (PCT)
Prior art keywords
air
fuel ratio
ratio control
catalyst
combustion engine
Prior art date
Application number
PCT/IB2007/002558
Other languages
English (en)
Other versions
WO2008029256A2 (fr
Inventor
Takahiko Fujiwara
Norihisa Nakagawa
Naoto Kato
Shuntaro Okazaki
Koji Ide
Original Assignee
Toyota Motor Co Ltd
Takahiko Fujiwara
Norihisa Nakagawa
Naoto Kato
Shuntaro Okazaki
Koji Ide
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 Toyota Motor Co Ltd, Takahiko Fujiwara, Norihisa Nakagawa, Naoto Kato, Shuntaro Okazaki, Koji Ide filed Critical Toyota Motor Co Ltd
Priority to US12/439,902 priority Critical patent/US20100218485A1/en
Priority to EP07825062A priority patent/EP2059665B1/fr
Publication of WO2008029256A2 publication Critical patent/WO2008029256A2/fr
Publication of WO2008029256A3 publication Critical patent/WO2008029256A3/fr

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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • 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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/0295—Control according to the amount of oxygen that is stored on the exhaust gas treating apparatus
    • 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
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/16—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0814—Oxygen storage amount

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)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

Une quantité d'injection de carburant est commandée de telle sorte que le rapport air-carburant du gaz d'échappement s'écoulant dans un catalyseur (6) oscille autour d'un rapport air-carburant stoechiométrique. Lorsqu'il est estimé que le niveau de capacité de stockage d'oxygène du catalyseur (6) est inférieur à une capacité de référence prédéterminée, l'amplitude du rapport air-carburant du gaz d'échappement qui oscille autour du rapport air-carburant stoechiométrique est réduite par commande de la quantité d'injection de carburant. Le niveau de la capacité de stockage d'oxygène du catalyseur (6) est estimé sur la base de l'amplitude du signal de sortie provenant d'un détecteur d'oxygène (14) disposé en aval du catalyseur (6).
PCT/IB2007/002558 2006-09-06 2007-09-05 Appareil de commande de rapport air-carburant et procédé de commande de rapport air-carburant pour moteur à combustion interne WO2008029256A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/439,902 US20100218485A1 (en) 2006-09-06 2007-09-05 Air-fuel ratio control apparatus and air-fuel ratio control method for internal combustion engine
EP07825062A EP2059665B1 (fr) 2006-09-06 2007-09-05 Appareil de commande de rapport air-carburant et procédé de commande de rapport air-carburant pour moteur à combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006241633A JP4826398B2 (ja) 2006-09-06 2006-09-06 内燃機関の空燃比制御装置
JP2006-241633 2006-09-06

Publications (2)

Publication Number Publication Date
WO2008029256A2 WO2008029256A2 (fr) 2008-03-13
WO2008029256A3 true WO2008029256A3 (fr) 2008-05-22

Family

ID=38961266

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/002558 WO2008029256A2 (fr) 2006-09-06 2007-09-05 Appareil de commande de rapport air-carburant et procédé de commande de rapport air-carburant pour moteur à combustion interne

Country Status (4)

Country Link
US (1) US20100218485A1 (fr)
EP (1) EP2059665B1 (fr)
JP (1) JP4826398B2 (fr)
WO (1) WO2008029256A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8347866B2 (en) * 2009-09-29 2013-01-08 GM Global Technology Operations LLC Fuel control system and method for more accurate response to feedback from an exhaust system with an air/fuel equivalence ratio offset
CN102116190B (zh) * 2009-12-30 2014-01-15 中国第一汽车集团公司 一种新型三元催化转化器故障诊断方法
JP5794788B2 (ja) * 2011-02-16 2015-10-14 ダイハツ工業株式会社 空燃比制御装置
US10570844B2 (en) * 2012-01-18 2020-02-25 Ford Global Technologies, Llc Air/fuel imbalance monitor
JP6107586B2 (ja) * 2013-10-02 2017-04-05 トヨタ自動車株式会社 内燃機関の制御装置
JP6268976B2 (ja) * 2013-11-22 2018-01-31 トヨタ自動車株式会社 内燃機関の制御装置
KR20210088239A (ko) * 2020-01-06 2021-07-14 현대자동차주식회사 촉매의 산소 저장량에 기반한 공연비 제어 장치 및 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222010A (ja) * 1996-02-15 1997-08-26 Nissan Motor Co Ltd エンジンの排気浄化装置
EP0926321A2 (fr) * 1997-12-26 1999-06-30 Nissan Motor Co., Ltd. Dispositif pour déterminer la détérioration d' un dispositif d'épuration des gaz d'échappement d'un moteur à combustion interne
EP1188915A2 (fr) * 2000-09-15 2002-03-20 Volkswagen Aktiengesellschaft Procédé de réglage de la régénération d'un catalyseur d'accumulation de NOx
US20020157379A1 (en) * 2000-02-16 2002-10-31 Masatomo Kakuyama Exhaust emission control for engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2745761B2 (ja) * 1990-02-27 1998-04-28 株式会社デンソー 内燃機関の触媒劣化判定装置
US5313791A (en) * 1991-06-28 1994-05-24 Ford Motor Company Method for detecting catalyst malfunctions
JP3135680B2 (ja) 1992-05-19 2001-02-19 本田技研工業株式会社 内燃エンジンの空燃比制御装置
JP2869847B2 (ja) * 1994-03-23 1999-03-10 本田技研工業株式会社 内燃機関の空燃比制御装置
JP4031887B2 (ja) * 1999-06-10 2008-01-09 株式会社日立製作所 エンジンの空燃比制御装置および方法
JP4308396B2 (ja) * 2000-02-14 2009-08-05 本田技研工業株式会社 内燃機関の燃料供給制御装置
JP3524490B2 (ja) * 2000-11-20 2004-05-10 本田技研工業株式会社 内燃機関の空燃比制御装置
JP3693942B2 (ja) * 2001-09-03 2005-09-14 三菱電機株式会社 内燃機関の空燃比制御装置
JP2003254129A (ja) * 2002-02-28 2003-09-10 Nissan Motor Co Ltd 排気浄化装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222010A (ja) * 1996-02-15 1997-08-26 Nissan Motor Co Ltd エンジンの排気浄化装置
EP0926321A2 (fr) * 1997-12-26 1999-06-30 Nissan Motor Co., Ltd. Dispositif pour déterminer la détérioration d' un dispositif d'épuration des gaz d'échappement d'un moteur à combustion interne
US20020157379A1 (en) * 2000-02-16 2002-10-31 Masatomo Kakuyama Exhaust emission control for engine
EP1188915A2 (fr) * 2000-09-15 2002-03-20 Volkswagen Aktiengesellschaft Procédé de réglage de la régénération d'un catalyseur d'accumulation de NOx

Also Published As

Publication number Publication date
WO2008029256A2 (fr) 2008-03-13
EP2059665A2 (fr) 2009-05-20
JP4826398B2 (ja) 2011-11-30
EP2059665B1 (fr) 2012-08-15
US20100218485A1 (en) 2010-09-02
JP2008063994A (ja) 2008-03-21

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