JP2011220214A - 燃料噴射制御装置 - Google Patents
燃料噴射制御装置 Download PDFInfo
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- JP2011220214A JP2011220214A JP2010089735A JP2010089735A JP2011220214A JP 2011220214 A JP2011220214 A JP 2011220214A JP 2010089735 A JP2010089735 A JP 2010089735A JP 2010089735 A JP2010089735 A JP 2010089735A JP 2011220214 A JP2011220214 A JP 2011220214A
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- JP
- Japan
- Prior art keywords
- increase
- temperature
- value
- increase value
- fuel injection
- 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.)
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Classifications
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- 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
- F01N3/18—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 characterised by methods of operation; Control
- F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
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- 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
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- 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
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
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- 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
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (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
【解決手段】本発明は、触媒10の現在温度T2、及び触媒10の収束温度T1を推定する温度取得手段20と、温度取得手段20により推定された現在温度T2及び収束温度T1に基づいて、内燃機関に設けられた燃料噴射弁8が噴射すべき燃料噴射量の増量値であるOT増量ベース値D1を算出する増量値算出手段22と、現在温度T2が収束温度T1より低い場合、現在温度T2及び収束温度T1に基づいて、OT増量ベース値D1を補正してOT増量補正反映値D2を算出する補正手段24と、OT増量ベース値及びOT増量補正反映値D2に基づいて、燃料噴射弁8が噴射すべき燃料噴射量のOT増量値としてOT増量ベース値D1及びOT増量補正反映値D2のいずれかを選択する増量値決定手段26と、を具備する燃料噴射制御装置。
【選択図】図3
Description
C=(T2−T3)/(T1−T3)・・・(1)
D2=C×D1・・・(2)
エンジン本体 4
クランクシャフト 6
クランク角度センサ 7
燃料噴射弁 8
吸気センサ 9
触媒 10
吸気管 12
排気管 14
点火プラグ 16
回転数検出手段 18
温度取得手段 20
増量値算出手段 22
比較手段 23
補正手段 24
増量値決定手段 26
Claims (3)
- 内燃機関の排気系に設けられた触媒の温度、及び前記触媒の収束温度を取得する温度取得手段と、
前記温度取得手段により取得された前記触媒の温度及び前記収束温度に基づいて、前記内燃機関に設けられた燃料噴射弁が、前記触媒を冷却するために噴射すべき燃料噴射量の増量値である第1増量値を算出する増量値算出手段と、
前記触媒の温度が前記収束温度より低い場合、前記触媒の温度及び前記収束温度に基づいて、前記第1増量値を補正して第2増量値を算出する補正手段と、
前記触媒の温度、前記収束温度、前記第1増量値、及び前記第2増量値に基づいて、前記燃料噴射弁が噴射すべき燃料噴射量の増量値として前記第1増量値及び前記第2増量値のいずれかを選択する増量値決定手段と、を具備することを特徴とする燃料噴射制御装置。 - 前記触媒の温度が前記収束温度より低く、かつ前記第2増量値が前記第1増量値より小さい場合には、前記増量値決定手段は、前記増量値を前記第2増量値とし、
前記触媒の温度が前記収束温度より高い場合、又は前記第2増量値が前記第1増量値より大きい場合の少なくとも一方の場合には、前記増量値決定手段は、前記増量値を前記第1増量値とすることを特徴とする請求項1記載の燃料噴射制御装置。 - 前記触媒の温度が前記収束温度より高く、かつ前記第2増量値が前記第1増量値より小さい場合には、前記増量値決定手段は前記増量値を前記第2増量値とし、
前記触媒の温度が前記収束温度より高く、かつ前記第2増量値が前記第1増量値より大きい場合には、前記増量決定手段は前記増量値を前記第1増量値とすることを特徴とする請求項1記載の燃料噴射制御装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010089735A JP5464023B2 (ja) | 2010-04-08 | 2010-04-08 | 燃料噴射制御装置 |
US13/082,518 US8688354B2 (en) | 2010-04-08 | 2011-04-08 | Fuel injection control apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010089735A JP5464023B2 (ja) | 2010-04-08 | 2010-04-08 | 燃料噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011220214A true JP2011220214A (ja) | 2011-11-04 |
JP5464023B2 JP5464023B2 (ja) | 2014-04-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010089735A Expired - Fee Related JP5464023B2 (ja) | 2010-04-08 | 2010-04-08 | 燃料噴射制御装置 |
Country Status (2)
Country | Link |
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US (1) | US8688354B2 (ja) |
JP (1) | JP5464023B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013179132A1 (en) | 2012-06-01 | 2013-12-05 | Toyota Jidosha Kabushiki Kaisha | Catalyst protection device and catalyst protection method for internal combustion engine |
US8798893B2 (en) | 2011-02-08 | 2014-08-05 | Toyota Jidosha Kabushiki Kaisha | Fuel injection control apparatus for internal combustion engine and fuel injection control method for internal combustion engine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5545367B2 (ja) * | 2010-06-07 | 2014-07-09 | トヨタ自動車株式会社 | 内燃機関の燃料噴射量制御装置 |
JP5609349B2 (ja) | 2010-07-13 | 2014-10-22 | トヨタ自動車株式会社 | 触媒の過熱防止装置 |
JP5849858B2 (ja) * | 2012-06-01 | 2016-02-03 | トヨタ自動車株式会社 | 内燃機関の触媒保護装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04234542A (ja) * | 1990-12-28 | 1992-08-24 | Honda Motor Co Ltd | 内燃エンジンの空燃比制御方法 |
JP2002047971A (ja) * | 2000-08-02 | 2002-02-15 | Hitachi Ltd | エンジン制御装置 |
JP2007107395A (ja) * | 2005-10-11 | 2007-04-26 | Honda Motor Co Ltd | 内燃機関の燃料供給制御装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07166918A (ja) | 1993-12-17 | 1995-06-27 | Toyota Motor Corp | 内燃機関の燃料噴射制御装置 |
US7121085B2 (en) * | 2001-09-04 | 2006-10-17 | Ford Global Technologies, Llc | Method and apparatus for controlling hydrocarbon injection into engine exhaust to reduce NOx |
JP3810708B2 (ja) | 2002-05-24 | 2006-08-16 | 本田技研工業株式会社 | 触媒の温度推定装置 |
JP4115162B2 (ja) | 2002-05-28 | 2008-07-09 | 富士重工業株式会社 | 内燃機関の排気ガス浄化制御装置 |
JP2005048678A (ja) * | 2003-07-30 | 2005-02-24 | Nissan Motor Co Ltd | 内燃機関の燃焼制御装置 |
JP2005048746A (ja) * | 2003-07-31 | 2005-02-24 | Nissan Motor Co Ltd | 内燃機関の燃焼制御装置 |
JP2005273530A (ja) * | 2004-03-24 | 2005-10-06 | Toyota Motor Corp | 内燃機関の制御装置およびこれを備える自動車 |
JP2006037921A (ja) | 2004-07-30 | 2006-02-09 | Denso Corp | 内燃機関の排気系部品温度推定装置 |
JP4325704B2 (ja) * | 2007-06-06 | 2009-09-02 | トヨタ自動車株式会社 | 内燃機関の排気浄化システム |
JP2009019521A (ja) | 2007-07-10 | 2009-01-29 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2009209839A (ja) * | 2008-03-05 | 2009-09-17 | Denso Corp | 内燃機関の排気浄化装置 |
US8135535B2 (en) * | 2009-06-09 | 2012-03-13 | Ford Global Technologies, Llc | Modeling catalyst exotherm due to blowthrough |
-
2010
- 2010-04-08 JP JP2010089735A patent/JP5464023B2/ja not_active Expired - Fee Related
-
2011
- 2011-04-08 US US13/082,518 patent/US8688354B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04234542A (ja) * | 1990-12-28 | 1992-08-24 | Honda Motor Co Ltd | 内燃エンジンの空燃比制御方法 |
JP2002047971A (ja) * | 2000-08-02 | 2002-02-15 | Hitachi Ltd | エンジン制御装置 |
JP2007107395A (ja) * | 2005-10-11 | 2007-04-26 | Honda Motor Co Ltd | 内燃機関の燃料供給制御装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8798893B2 (en) | 2011-02-08 | 2014-08-05 | Toyota Jidosha Kabushiki Kaisha | Fuel injection control apparatus for internal combustion engine and fuel injection control method for internal combustion engine |
WO2013179132A1 (en) | 2012-06-01 | 2013-12-05 | Toyota Jidosha Kabushiki Kaisha | Catalyst protection device and catalyst protection method for internal combustion engine |
JP2013249792A (ja) * | 2012-06-01 | 2013-12-12 | Toyota Motor Corp | 内燃機関の触媒保護装置 |
US9371762B2 (en) | 2012-06-01 | 2016-06-21 | Toyota Jidosha Kabushiki Kaisha | Catalyst protection device and catalyst protection method for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
US20110251779A1 (en) | 2011-10-13 |
US8688354B2 (en) | 2014-04-01 |
JP5464023B2 (ja) | 2014-04-09 |
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