JP3896685B2 - 内燃機関の空燃比制御装置 - Google Patents

内燃機関の空燃比制御装置 Download PDF

Info

Publication number
JP3896685B2
JP3896685B2 JP07418598A JP7418598A JP3896685B2 JP 3896685 B2 JP3896685 B2 JP 3896685B2 JP 07418598 A JP07418598 A JP 07418598A JP 7418598 A JP7418598 A JP 7418598A JP 3896685 B2 JP3896685 B2 JP 3896685B2
Authority
JP
Japan
Prior art keywords
air
fuel ratio
nox
signal
lean
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 - Fee Related
Application number
JP07418598A
Other languages
English (en)
Japanese (ja)
Other versions
JPH11271272A (ja
Inventor
山下　　幸宏
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.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Priority to JP07418598A priority Critical patent/JP3896685B2/ja
Priority to DE1999112832 priority patent/DE19912832B4/de
Publication of JPH11271272A publication Critical patent/JPH11271272A/ja
Application granted granted Critical
Publication of JP3896685B2 publication Critical patent/JP3896685B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • 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
    • F02D41/0275—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 the exhaust gas treating apparatus being a NOx trap or adsorbent
    • 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
    • F02D41/1444—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
    • F02D41/02—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
    • F02D41/146—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 NOx content or concentration
    • 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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1461—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 NOx content or concentration of the exhaust gases emitted by the engine
    • 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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1463—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 NOx content or concentration of the exhaust gases downstream of exhaust gas treatment apparatus
    • 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
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • 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
    • F02D2200/0806—NOx storage amount, i.e. amount of NOx stored on NOx trap

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
JP07418598A 1998-03-23 1998-03-23 内燃機関の空燃比制御装置 Expired - Fee Related JP3896685B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP07418598A JP3896685B2 (ja) 1998-03-23 1998-03-23 内燃機関の空燃比制御装置
DE1999112832 DE19912832B4 (de) 1998-03-23 1999-03-22 Vorrichtung zur Steuerung des Luft-Kraftstoff-Verhältnisses für einen Verbrennungsmotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07418598A JP3896685B2 (ja) 1998-03-23 1998-03-23 内燃機関の空燃比制御装置

Publications (2)

Publication Number Publication Date
JPH11271272A JPH11271272A (ja) 1999-10-05
JP3896685B2 true JP3896685B2 (ja) 2007-03-22

Family

ID=13539869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07418598A Expired - Fee Related JP3896685B2 (ja) 1998-03-23 1998-03-23 内燃機関の空燃比制御装置

Country Status (2)

Country Link
JP (1) JP3896685B2 (de)
DE (1) DE19912832B4 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954549C2 (de) 1999-11-12 2001-12-20 Daimler Chrysler Ag Verfahren zum Betrieb einer Abgasreinigungsanlage mit Stickoxidadsorber und Beladungssensor
DE10004330A1 (de) * 2000-02-01 2001-08-02 Deutz Ag Programmierbare Steuer- und Regelelektronik für eine Brennkraftmaschine
US6427437B1 (en) * 2000-03-17 2002-08-06 Ford Global Technologies, Inc. Method for improved performance of an engine emission control system
US6308697B1 (en) * 2000-03-17 2001-10-30 Ford Global Technologies, Inc. Method for improved air-fuel ratio control in engines
US6810659B1 (en) * 2000-03-17 2004-11-02 Ford Global Technologies, Llc Method for determining emission control system operability
US7155334B1 (en) * 2005-09-29 2006-12-26 Honeywell International Inc. Use of sensors in a state observer for a diesel engine
KR100907315B1 (ko) 2007-12-17 2009-07-13 한국기계연구원 질소산화물의 흡장 탈질 장치 및 질소산화물의 흡장 탈질방법
JP5204160B2 (ja) * 2009-09-03 2013-06-05 日本特殊陶業株式会社 マルチガスセンサの制御方法及びマルチガスセンサの制御装置
KR20150111281A (ko) 2014-03-25 2015-10-05 현대중공업 주식회사 선박 및 유해물질 저감기기 예열장치 그리고, 유해물질 저감기기 예열방법
CN115135865A (zh) * 2020-03-02 2022-09-30 沃尔沃卡车集团 具有燃料***控制装置的发动机***和用于控制内燃发动机中的燃料喷射的方法
CN112943417B (zh) * 2021-04-29 2022-08-23 潍柴动力股份有限公司 一种dpf再生控制方法、尾气处理***及车辆

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994017291A1 (en) * 1993-01-19 1994-08-04 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning device for an internal combustion engine
JP2885336B2 (ja) * 1994-04-21 1999-04-19 日本碍子株式会社 被測定ガス中のＮＯｘ濃度の測定方法及び測定装置
GB2288873A (en) * 1994-04-28 1995-11-01 Univ Middlesex Serv Ltd Multi-component gas analysis apparatus
JP3876506B2 (ja) * 1997-06-20 2007-01-31 株式会社デンソー ガス濃度の測定方法及び複合ガスセンサ
DE19755600C2 (de) * 1997-12-15 2002-01-17 Bosch Gmbh Robert Betrieb eines Verbrennungsmotors in Verbindungmit einem NOx-Speicherkatalysator

Also Published As

Publication number Publication date
JPH11271272A (ja) 1999-10-05
DE19912832A1 (de) 1999-09-30
DE19912832B4 (de) 2008-09-11

Similar Documents

Publication Publication Date Title
EP1167726B1 (de) Vorrichtung zur Steuerung des Luft/Kraftstoffsgemisches einer Brennkraftmaschine
JP4158268B2 (ja) エンジンの排気浄化装置
US10151262B2 (en) Abnormality diagnosis system of air-fuel ratio sensors
US10066567B2 (en) Control device and control method of internal combustion engine
US5771688A (en) Air-fuel ratio control apparatus for internal combustion engines
EP0796985B1 (de) Vorrichtung zum Feststellen der Verschlechterung eines Dreiwegkatalysators für eine Brennkraftmaschine
JP6834917B2 (ja) 内燃機関の排気浄化装置
JP6287980B2 (ja) 内燃機関の制御装置
JP3887903B2 (ja) 内燃機関の空燃比制御装置
JP3896685B2 (ja) 内燃機関の空燃比制御装置
JPH11311142A (ja) 内燃機関の空燃比制御装置
US9677490B2 (en) Abnormality diagnosis system of internal combustion engine
JP3988518B2 (ja) 内燃機関の排ガス浄化装置
JP4726663B2 (ja) 内燃機関の空燃比制御装置
JP2591045B2 (ja) アルコール含有燃料内燃機関の燃料噴射制御装置
JP3823384B2 (ja) エンジンの触媒劣化判定装置
JP4608758B2 (ja) 内燃機関の空燃比制御装置
JP4055256B2 (ja) 内燃機関の排ガス浄化装置
JP4356249B2 (ja) 内燃機関の排気浄化装置
JP3866347B2 (ja) エンジンの排気浄化装置
JPH1130141A (ja) ガスエンジンの空燃比制御装置
JPH1136968A (ja) エンジンの空燃比制御装置
JPH11257145A (ja) 排気浄化装置の温度推定装置
JPH10252524A (ja) エンジンの排気浄化装置
JP3972925B2 (ja) 内燃機関の触媒劣化検出装置

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040607

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060411

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20061128

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20061211

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110105

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120105

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130105

Year of fee payment: 6

LAPS Cancellation because of no payment of annual fees