JP2011214495A - 内燃機関の排気浄化制御システム - Google Patents
内燃機関の排気浄化制御システム Download PDFInfo
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- JP2011214495A JP2011214495A JP2010083042A JP2010083042A JP2011214495A JP 2011214495 A JP2011214495 A JP 2011214495A JP 2010083042 A JP2010083042 A JP 2010083042A JP 2010083042 A JP2010083042 A JP 2010083042A JP 2011214495 A JP2011214495 A JP 2011214495A
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- JP
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- Prior art keywords
- internal combustion
- combustion engine
- catalyst
- reactant
- amount
- 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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- 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
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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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
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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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
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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
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
【解決手段】内燃機関1の排気通路6に設けられ排気ガスを浄化する触媒13と、該触媒13よりも上流側に前記触媒の反応に必要な反応剤を供給する反応剤供給手段30と、該反応剤供給手段30による反応剤12の供給量を制御する制御装置24とを備えた内燃機関の排気浄化制御システム25において、前記制御装置24が、内燃機関1の運転状況から基本反応剤供給量Ubを算出する工程と、過渡時の前記触媒13の温度変化率から前記基本反応剤供給量Ubに対する補正量Ncを算出する工程と、前記基本反応剤供給量Ubおよび前記補正量Ncから目標反応剤供給量を算出する工程とを実行するように構成されている。
【選択図】図1
Description
6 排気通路
12 尿素水(反応剤)
13 SCR触媒(触媒)
24 制御装置
25 排気浄化制御システム
30 反応剤供給手段
Claims (3)
- 内燃機関の排気通路に設けられ排気ガスを浄化する触媒と、該触媒よりも上流側に前記触媒の反応に必要な反応剤を供給する反応剤供給手段と、該反応剤供給手段による反応剤の供給量を制御する制御装置とを備えた内燃機関の排気浄化制御システムにおいて、前記制御装置が、内燃機関の運転状況から基本反応剤供給量を算出する工程と、過渡時の前記触媒の温度変化率から前記基本反応剤供給量に対する補正量を算出する工程と、前記基本反応剤供給量および前記補正量から目標反応剤供給量を算出する工程とを実行するように構成されていることを特徴とする内燃機関の排気浄化制御システム。
- 前記触媒が排気ガス中のNOxを浄化するSCR触媒であり、前記反応剤が尿素水であることを特徴とする請求項1記載の内燃機関の排気浄化制御システム。
- 前記内燃機関の運転状況が、エンジン回転数およびアクセル開度から求められることを特徴とする請求項1又は2記載の内燃機関の排気浄化制御システム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010083042A JP5655349B2 (ja) | 2010-03-31 | 2010-03-31 | 内燃機関の排気浄化制御システム |
PCT/JP2011/055897 WO2011122316A1 (ja) | 2010-03-31 | 2011-03-14 | 内燃機関の排気浄化制御システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010083042A JP5655349B2 (ja) | 2010-03-31 | 2010-03-31 | 内燃機関の排気浄化制御システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011214495A true JP2011214495A (ja) | 2011-10-27 |
JP5655349B2 JP5655349B2 (ja) | 2015-01-21 |
Family
ID=44712037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010083042A Expired - Fee Related JP5655349B2 (ja) | 2010-03-31 | 2010-03-31 | 内燃機関の排気浄化制御システム |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5655349B2 (ja) |
WO (1) | WO2011122316A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013122222A (ja) * | 2011-12-12 | 2013-06-20 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103527293B (zh) * | 2013-10-08 | 2016-07-13 | 潍柴动力股份有限公司 | 一种尿素喷射控制方法和控制单元 |
CN115126579B (zh) * | 2022-06-29 | 2024-01-02 | 潍柴动力股份有限公司 | 一种尿素喷射量控制方法及车辆 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006046289A (ja) * | 2004-08-09 | 2006-02-16 | Hino Motors Ltd | 排気浄化装置の制御方法 |
JP2009127497A (ja) * | 2007-11-21 | 2009-06-11 | Toyota Motor Corp | NOx浄化装置の診断装置 |
JP2010196623A (ja) * | 2009-02-26 | 2010-09-09 | Mazda Motor Corp | 排気ガス浄化装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4075440B2 (ja) * | 2002-04-10 | 2008-04-16 | 三菱ふそうトラック・バス株式会社 | 内燃機関のNOx浄化装置 |
JP2008128066A (ja) * | 2006-11-20 | 2008-06-05 | Mitsubishi Fuso Truck & Bus Corp | 排気浄化装置 |
-
2010
- 2010-03-31 JP JP2010083042A patent/JP5655349B2/ja not_active Expired - Fee Related
-
2011
- 2011-03-14 WO PCT/JP2011/055897 patent/WO2011122316A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006046289A (ja) * | 2004-08-09 | 2006-02-16 | Hino Motors Ltd | 排気浄化装置の制御方法 |
JP2009127497A (ja) * | 2007-11-21 | 2009-06-11 | Toyota Motor Corp | NOx浄化装置の診断装置 |
JP2010196623A (ja) * | 2009-02-26 | 2010-09-09 | Mazda Motor Corp | 排気ガス浄化装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013122222A (ja) * | 2011-12-12 | 2013-06-20 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2011122316A1 (ja) | 2011-10-06 |
JP5655349B2 (ja) | 2015-01-21 |
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