JP7452975B2 - 空燃比制御システム及び空燃比制御方法 - Google Patents
空燃比制御システム及び空燃比制御方法 Download PDFInfo
- Publication number
- JP7452975B2 JP7452975B2 JP2019189346A JP2019189346A JP7452975B2 JP 7452975 B2 JP7452975 B2 JP 7452975B2 JP 2019189346 A JP2019189346 A JP 2019189346A JP 2019189346 A JP2019189346 A JP 2019189346A JP 7452975 B2 JP7452975 B2 JP 7452975B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- sensor
- temperature
- fuel
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 311
- 238000000034 method Methods 0.000 title claims description 32
- 238000002485 combustion reaction Methods 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 35
- 238000000746 purification Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 37
- 230000008569 process Effects 0.000 description 22
- 238000011144 upstream manufacturing Methods 0.000 description 19
- 239000003054 catalyst Substances 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 238000001514 detection method Methods 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F02D41/1493—Details
- F02D41/1494—Control of sensor heater
-
- 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
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/101—Three-way catalysts
-
- 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
- F01N9/00—Electrical control of 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
-
- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
-
- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/20—Sensor having heating means
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1402—Exhaust gas composition
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
-
- 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
- F02D41/1456—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 with sensor output signal being linear or quasi-linear with the concentration of oxygen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
<1> 内燃機関に供給される燃料混合気の空燃比λを、目標空燃比となるように、前記燃料混合気の混合比を調節して制御する空燃比制御部と、前記内燃機関の排気側に設けられ、前記内燃機関からの排気を浄化する排気ガス浄化装置と、前記内燃機関の排気側に設けられ、理論空燃比を境にリッチ側とリーン側とで出力が急峻に変化する空燃比センサと、前記空燃比センサを加熱するヒータと、前記ヒータの温度を調節して、前記空燃比センサの温度を制御する温度制御部とを備える空燃比制御システムであって、前記空燃比制御部は、0.980≦λ<1.000、かつ前記空燃比λの変化量Δλが0.008の範囲であって、前記空燃比センサの出力差ΔVが150mV以下となる前記範囲内の所定の空燃比を、前記目標空燃比とし、かつ、前記空燃比センサの出力に基づいて、前記燃料混合気の前記混合比を制御し、前記温度制御部は、前記空燃比センサの温度が650℃以上の温度範囲内における所定の目標温度となるように前記空燃比センサの温度を制御する空燃比制御システム。
本発明の実施形態1を、図1~図6を参照しつつ説明する。図1は、実施形態1に係る空燃比制御システム1が設けられた内燃機関2とその周辺機器の構成を模式的に表した説明図である。空燃比制御システム1は、車両に搭載されている内燃機関2に対して供給される燃料混合気の空燃比λを、目標空燃比λaとなるように制御するシステムである。空燃比制御システム1は、主として、空燃比制御部3、三元触媒(排気ガス浄化装置の一例)4、空燃比センサ5、ヒータ6、温度制御部7を備えている。なお、空燃比制御部3及び温度制御部7は、内燃機関2の運転を制御するECU(Electronic Control Unit)8内のCPU(Central Processing Unit)によって構成される。ECU8は、CPU、ROM、RAM等を備えており、CPUがROMに記憶されたプログラムを実行し、空燃比センサ5等の各種センサから検出信号が入力される。
次いで、図9を参照しつつ、本発明の実施形態2に係る空燃比制御システム1Aについて説明する。本実施形態の空燃比制御システム1Aでは、温度制御部7Aが、空燃比センサ5を制御する第1センサ制御装置51Aのマイコンにより構成される。なお、空燃比制御部3は、実施形態1と同様、ECU8AのCPUにより構成される。空燃比制御システム1Aのその他の構成は、実施形態1と同様である。そのため、その他の構成については、実施形態1と同様の符号を付し、詳細説明は省略する。
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
Claims (4)
- 内燃機関に供給される燃料混合気の空燃比λを、目標空燃比となるように、前記燃料混合気の混合比を調節して制御する空燃比制御部と、
前記内燃機関の排気側に設けられ、前記内燃機関からの排気を浄化する排気ガス浄化装置と、
前記内燃機関の排気側に設けられ、理論空燃比を境にリッチ側とリーン側とで出力が急峻に変化する空燃比センサと、
前記空燃比センサを加熱するヒータと、
前記ヒータの温度を調節して、前記空燃比センサの温度を制御する温度制御部とを備 える空燃比制御システムであって、
前記空燃比制御部は、前記空燃比センサの出力差ΔVが50mV以上90mV以下となる、0.990≦λ≦0.998の範囲を、前記目標空燃比とし、かつ、前記空燃比センサの出力に基づいて、前記燃料混合気の前記混合比を制御し、
前記温度制御部は、前記空燃比センサの温度が650℃以上の温度範囲内における所定の目標温度となるように前記空燃比センサの温度を制御する空燃比制御システム。 - 前記温度制御部は、前記空燃比センサの温度が850℃以下となるように制御する請求項1に記載の空燃比制御システム。
- 前記空燃比センサは、前記排気ガス浄化装置中、若しくは前記排気ガス浄化装置の下流側に設けられる請求項1又は請求項2に記載の空燃比制御システム。
- 内燃機関に供給される燃料混合気の空燃比λを、目標空燃比となるように、前記燃料混合気の混合比を調節して制御する空燃比制御方法であって、
前記内燃機関の排気側に、前記内燃機関からの排気を浄化する排気ガス浄化装置が設けられ、
前記内燃機関の排気側に設けられ、理論空燃比を境にリッチ側とリーン側とで出力が急峻に変化する空燃比センサが設けられ、
前記空燃比センサの出力差ΔVが50mV以上90mV以下となる、0.990≦λ≦0.998の範囲を、前記目標空燃比とし、前記空燃比センサの出力に基づいて、前記燃料混合気の前記混合比を制御する空燃比制御工程と、
前記空燃比センサの温度が650℃以上の温度範囲内における所定の目標温度となるように、前記空燃比センサを加熱するヒータの温度を調節する温度制御工程とを備える空燃比制御方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019189346A JP7452975B2 (ja) | 2019-10-16 | 2019-10-16 | 空燃比制御システム及び空燃比制御方法 |
US17/039,778 US11174808B2 (en) | 2019-10-16 | 2020-09-30 | Air-fuel ratio control system and air-fuel ratio control method |
CN202011090856.4A CN112664339B (zh) | 2019-10-16 | 2020-10-13 | 空燃比控制系统和空燃比控制方法 |
DE102020126837.8A DE102020126837A1 (de) | 2019-10-16 | 2020-10-13 | System und verfahren zur steuerung des luft-kraftstoff-verhältnisses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019189346A JP7452975B2 (ja) | 2019-10-16 | 2019-10-16 | 空燃比制御システム及び空燃比制御方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021063482A JP2021063482A (ja) | 2021-04-22 |
JP7452975B2 true JP7452975B2 (ja) | 2024-03-19 |
Family
ID=75268745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019189346A Active JP7452975B2 (ja) | 2019-10-16 | 2019-10-16 | 空燃比制御システム及び空燃比制御方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11174808B2 (ja) |
JP (1) | JP7452975B2 (ja) |
CN (1) | CN112664339B (ja) |
DE (1) | DE102020126837A1 (ja) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001020804A (ja) | 1999-07-12 | 2001-01-23 | Toyota Motor Corp | 空燃比検出法 |
JP2002309928A (ja) | 2001-04-13 | 2002-10-23 | Yanmar Diesel Engine Co Ltd | 内燃機関の排気浄化装置 |
JP2003254130A (ja) | 2002-02-25 | 2003-09-10 | Denso Corp | 内燃機関の排気浄化装置 |
JP2006250945A (ja) | 2006-04-17 | 2006-09-21 | Honda Motor Co Ltd | 排ガスセンサの温度制御装置 |
JP2007198158A (ja) | 2006-01-24 | 2007-08-09 | Mazda Motor Corp | 水素エンジンの空燃比制御装置 |
JP2012036814A (ja) | 2010-08-06 | 2012-02-23 | Nissan Motor Co Ltd | 空燃比検出装置 |
JP2013185483A (ja) | 2012-03-07 | 2013-09-19 | Denso Corp | 空燃比制御装置 |
JP2016089819A (ja) | 2014-10-29 | 2016-05-23 | 現代自動車株式会社Hyundai Motor Company | 酸素センサ制御装置及び方法 |
JP2018179856A (ja) | 2017-04-18 | 2018-11-15 | 株式会社デンソー | ガスセンサ |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3816558A1 (de) * | 1988-05-14 | 1989-11-16 | Bosch Gmbh Robert | Verfahren und vorrichtung zur lambdaregelung |
JP3119088B2 (ja) * | 1994-09-16 | 2000-12-18 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP3692618B2 (ja) | 1995-08-29 | 2005-09-07 | 株式会社デンソー | 内燃機関の空燃比制御装置 |
SE508169C2 (sv) * | 1997-10-12 | 1998-09-07 | Mecel Ab | Sensor och förfarande för reglering av bränsle-luft blandning till en flercylindrig förbränningsmotor |
DE10025034A1 (de) * | 2000-05-20 | 2001-11-22 | Dmc2 Degussa Metals Catalysts | Verfahren zum Betreiben einer Abgasreinigungsvorrichtung an einem Otto-Motor |
US6848439B2 (en) * | 2001-11-08 | 2005-02-01 | Hitachi Unisia Automotive, Ltd. | Air-fuel ratio control apparatus, air-fuel ratio detecting apparatus and methods thereof for engine |
US6848639B2 (en) * | 2002-02-12 | 2005-02-01 | Borsig Gmbh | Low turbulent flow high speed cutter knife |
JP2006250065A (ja) * | 2005-03-11 | 2006-09-21 | Nissan Motor Co Ltd | 空燃比制御装置 |
CN101418731B (zh) * | 2007-10-22 | 2012-05-16 | 山东申普交通科技有限公司 | 水温传感器信号对发动机进气量的控制方法 |
US9146177B2 (en) * | 2012-08-03 | 2015-09-29 | GM Global Technology Operations LLC | System and method for diagnosing a fault in an oxygen sensor based on engine speed |
JP6989336B2 (ja) * | 2017-10-06 | 2022-01-05 | 日本特殊陶業株式会社 | センサ制御装置およびセンサユニット |
-
2019
- 2019-10-16 JP JP2019189346A patent/JP7452975B2/ja active Active
-
2020
- 2020-09-30 US US17/039,778 patent/US11174808B2/en active Active
- 2020-10-13 DE DE102020126837.8A patent/DE102020126837A1/de active Pending
- 2020-10-13 CN CN202011090856.4A patent/CN112664339B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001020804A (ja) | 1999-07-12 | 2001-01-23 | Toyota Motor Corp | 空燃比検出法 |
JP2002309928A (ja) | 2001-04-13 | 2002-10-23 | Yanmar Diesel Engine Co Ltd | 内燃機関の排気浄化装置 |
JP2003254130A (ja) | 2002-02-25 | 2003-09-10 | Denso Corp | 内燃機関の排気浄化装置 |
JP2007198158A (ja) | 2006-01-24 | 2007-08-09 | Mazda Motor Corp | 水素エンジンの空燃比制御装置 |
JP2006250945A (ja) | 2006-04-17 | 2006-09-21 | Honda Motor Co Ltd | 排ガスセンサの温度制御装置 |
JP2012036814A (ja) | 2010-08-06 | 2012-02-23 | Nissan Motor Co Ltd | 空燃比検出装置 |
JP2013185483A (ja) | 2012-03-07 | 2013-09-19 | Denso Corp | 空燃比制御装置 |
JP2016089819A (ja) | 2014-10-29 | 2016-05-23 | 現代自動車株式会社Hyundai Motor Company | 酸素センサ制御装置及び方法 |
JP2018179856A (ja) | 2017-04-18 | 2018-11-15 | 株式会社デンソー | ガスセンサ |
Also Published As
Publication number | Publication date |
---|---|
CN112664339B (zh) | 2023-07-11 |
US20210115869A1 (en) | 2021-04-22 |
CN112664339A (zh) | 2021-04-16 |
US11174808B2 (en) | 2021-11-16 |
JP2021063482A (ja) | 2021-04-22 |
DE102020126837A1 (de) | 2021-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4877610B2 (ja) | 多気筒内燃機関の気筒間空燃比ばらつき異常検出装置 | |
JP3602614B2 (ja) | 内燃機関の排気ガス浄化装置 | |
KR101442391B1 (ko) | 내연 기관의 배출 제어 시스템 | |
KR101399192B1 (ko) | 내연 기관의 배출 제어 시스템 | |
US8893473B2 (en) | Emission control system for internal combustion engine | |
JP2009281328A (ja) | 多気筒内燃機関の気筒間空燃比ばらつき異常検出装置 | |
AU2014325164B2 (en) | Control device for internal combustion engine | |
WO1998012423A1 (fr) | Dispositif de commande de moteur | |
JP4984250B2 (ja) | 内燃機関の触媒劣化検出装置 | |
JP2019513930A (ja) | 自動車のための排出ガス制御システムおよび方法 | |
JP7452975B2 (ja) | 空燃比制御システム及び空燃比制御方法 | |
JPH08285808A (ja) | 空燃比センサの異常診断装置 | |
JP7064319B2 (ja) | 内燃機関の制御装置 | |
JP5971185B2 (ja) | 発熱素子の表面温度制御方法 | |
JP2008255972A (ja) | 空燃比制御装置 | |
JP6361591B2 (ja) | 内燃機関の制御装置 | |
JP3593912B2 (ja) | 空燃比センサのヒータ制御装置 | |
JP2015075082A (ja) | 空燃比センサの制御装置 | |
JP3539259B2 (ja) | 空燃比センサのヒータ制御装置 | |
JP3627417B2 (ja) | 内燃機関の燃料性状検出装置 | |
US12104515B2 (en) | Method, computing unit, and computer program for operating a burner | |
CN113389625B (zh) | 用于排气传感器的控制装置 | |
JP3591362B2 (ja) | 空燃比センサのヒータ制御装置 | |
JP2003097332A (ja) | 内燃機関の排気浄化装置および浄化法 | |
CN117266973A (zh) | 内燃机的排气净化装置和其排气净化方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220331 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230413 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230608 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230720 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20231121 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240126 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20240202 |
|
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: 20240220 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240307 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7452975 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |