JP5655348B2 - 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
- Publication number
- JP5655348B2 JP5655348B2 JP2010083041A JP2010083041A JP5655348B2 JP 5655348 B2 JP5655348 B2 JP 5655348B2 JP 2010083041 A JP2010083041 A JP 2010083041A JP 2010083041 A JP2010083041 A JP 2010083041A JP 5655348 B2 JP5655348 B2 JP 5655348B2
- Authority
- JP
- Japan
- Prior art keywords
- amount
- internal combustion
- combustion engine
- exhaust gas
- control system
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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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
- 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
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
-
- 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
-
- 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
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0412—Methods of control or diagnosing using pre-calibrated maps, tables or charts
-
- 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
- F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
-
- 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
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1622—Catalyst reducing agent absorption capacity or consumption amount
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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
Landscapes
- 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)
- Exhaust Gas After Treatment (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
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 液体還元剤供給手段(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、前記内燃機関の運転状況であるエンジン回転数の変化量を用いて前記基本反応剤供給量に対する補正量を算出すると共に、前記エンジン回転数の増加量が大きいほど前記補正量が小さくなるように前記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。
- 前記補正量を、アクセル開度の変化量を用いて算出す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 |
---|---|---|---|
JP2010083041A JP5655348B2 (ja) | 2010-03-31 | 2010-03-31 | 内燃機関の排気浄化制御システム |
PCT/JP2011/055896 WO2011125421A1 (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 |
---|---|---|---|
JP2010083041A JP5655348B2 (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 |
---|---|
JP2011214494A JP2011214494A (ja) | 2011-10-27 |
JP5655348B2 true JP5655348B2 (ja) | 2015-01-21 |
Family
ID=44762382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010083041A Expired - Fee Related JP5655348B2 (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) | JP5655348B2 (ja) |
WO (1) | WO2011125421A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5699922B2 (ja) * | 2011-12-12 | 2015-04-15 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP2022137751A (ja) * | 2021-03-09 | 2022-09-22 | 株式会社小松製作所 | 制御装置、制御方法および排気浄化システム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040083722A1 (en) * | 2002-11-06 | 2004-05-06 | Ford Global Technologies, Inc. | Diesel aftertreatment systems |
US20040083721A1 (en) * | 2002-11-06 | 2004-05-06 | Ford Global Technologies, Inc. | Diesel aftertreatment systems |
JP4677837B2 (ja) * | 2005-07-08 | 2011-04-27 | いすゞ自動車株式会社 | 排気ガス浄化システムの再生制御方法及び排気ガス浄化システム |
-
2010
- 2010-03-31 JP JP2010083041A patent/JP5655348B2/ja not_active Expired - Fee Related
-
2011
- 2011-03-14 WO PCT/JP2011/055896 patent/WO2011125421A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2011125421A1 (ja) | 2011-10-13 |
JP2011214494A (ja) | 2011-10-27 |
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