JPWO2013179487A1 - 内燃機関の排気浄化装置 - Google Patents
内燃機関の排気浄化装置 Download PDFInfo
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- JPWO2013179487A1 JPWO2013179487A1 JP2014518208A JP2014518208A JPWO2013179487A1 JP WO2013179487 A1 JPWO2013179487 A1 JP WO2013179487A1 JP 2014518208 A JP2014518208 A JP 2014518208A JP 2014518208 A JP2014518208 A JP 2014518208A JP WO2013179487 A1 JPWO2013179487 A1 JP WO2013179487A1
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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]
-
- 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
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment 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
- F02D41/021—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
-
- 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
- F02D41/025—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 by changing the composition of the exhaust gas, e.g. for exothermic reaction on 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/401—Controlling injection timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
- F01N2610/105—Control thereof
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
-
- 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
- F02D2200/0802—Temperature of the exhaust gas treatment apparatus
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
内燃機関の排気通路に配置されるNOX触媒と、
前記NOX触媒の温度を検出する検出手段と、
内燃機関から排出されるスモークの量が少なくなるように内燃機関を運転させる処理であるスモーク低減処理を実行するスモーク低減手段と、
内燃機関の吸入空気量が少なくなるように内燃機関を運転させる処理である空気量低減処理を実行する空気量低減手段と、
前記NOX触媒の温度を上昇させる処理である昇温処理を実行する昇温手段と、
前記検出手段により検出される温度が前記NOX触媒の活性温度より低い下限値未満であるときは前記昇温処理が実行されずに前記スモーク低減処理及び前記空気量低減処理が実行され、前記検出手段により検出される温度が前記下限値以上且つ前記活性温度未満であるときは前記昇温処理が実行されるような制御を行う制御手段と、
を備えるようにした。
1a 燃料噴射弁
2 吸気通路
3 排気通路
4 スロットル弁
5 第一触媒ケーシング
6 第二触媒ケーシング
7 還元剤添加弁
8 第一排気温度センサ
9 第二排気温度センサ
10 ECU
11 クランクポジションセンサ
12 アクセルポジションセンサ
13 エアフローメータ
14 A/Fセンサ
70 ポンプ
71 還元剤タンク
100 EGR通路
101 EGR弁
Claims (3)
- 内燃機関の排気通路に配置されるNOX触媒と、
前記NOX触媒の温度を検出する検出手段と、
内燃機関から排出されるスモークの量が少なくなるように内燃機関を運転させる処理であるスモーク低減処理を実行するスモーク低減手段と、
内燃機関の吸入空気量が少なくなるように内燃機関を運転させる処理である空気量低減処理を実行する空気量低減手段と、
前記NOX触媒の温度を上昇させる処理である昇温処理を実行する昇温手段と、
前記検出手段により検出される温度が前記NOX触媒の活性温度より低い下限値未満であるときは前記昇温処理が実行されずに前記スモーク低減処理及び前記空気量低減処理が実行され、前記検出手段により検出される温度が前記下限値以上且つ前記活性温度未満であるときは前記昇温処理が実行されるような制御を行う制御手段と、
を備える内燃機関の排気浄化装置。 - 請求項1において、前記スモーク低減処理は、内燃機関の気筒内へ燃料が噴射される時期である燃料噴射時期を進角させる処理を含む内燃機関の排気浄化装置。
- 請求項1又は2において、排気の一部をEGRガスとして内燃機関の気筒内へ導入させるEGR装置を更に備え、
前記スモーク低減処理は、前記EGR装置により気筒内へ導入されるEGRガスの量を減少させる処理を含む内燃機関の排気浄化装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/064299 WO2013179487A1 (ja) | 2012-06-01 | 2012-06-01 | 内燃機関の排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2013179487A1 true JPWO2013179487A1 (ja) | 2016-01-18 |
JP6128122B2 JP6128122B2 (ja) | 2017-05-17 |
Family
ID=49672736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014518208A Active JP6128122B2 (ja) | 2012-06-01 | 2012-06-01 | 内燃機関の排気浄化装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9745877B2 (ja) |
EP (1) | EP2857647B1 (ja) |
JP (1) | JP6128122B2 (ja) |
WO (1) | WO2013179487A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6317234B2 (ja) * | 2014-11-05 | 2018-04-25 | ヤンマー株式会社 | エンジン |
US9874839B2 (en) | 2015-06-23 | 2018-01-23 | Ricoh Company, Ltd. | Fixing device and image forming apparatus |
JP6521005B2 (ja) * | 2017-08-24 | 2019-05-29 | マツダ株式会社 | 自動車 |
JP6972809B2 (ja) * | 2017-09-12 | 2021-11-24 | いすゞ自動車株式会社 | 車輌 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007239624A (ja) * | 2006-03-09 | 2007-09-20 | Toyota Motor Corp | 内燃機関の触媒昇温システムおよび触媒昇温方法 |
JP2008144596A (ja) * | 2006-12-06 | 2008-06-26 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP2011163312A (ja) * | 2010-02-15 | 2011-08-25 | Toyota Motor Corp | 噴射率波形作成方法及び内燃機関の制御装置 |
WO2011118030A1 (ja) * | 2010-03-26 | 2011-09-29 | トヨタ自動車株式会社 | 内燃機関の燃焼制御装置 |
JP2011226312A (ja) * | 2010-04-15 | 2011-11-10 | Isuzu Motors Ltd | 排気ガス浄化装置及び排気ガス浄化装置の制御方法 |
WO2012011148A1 (ja) * | 2010-07-21 | 2012-01-26 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
Family Cites Families (11)
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JP2001280184A (ja) * | 2000-03-30 | 2001-10-10 | Hitachi Ltd | 筒内噴射式内燃機関及び筒内噴射式内燃機関における始動時の燃焼制御方法 |
JP3912001B2 (ja) * | 2000-12-14 | 2007-05-09 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US6898927B2 (en) | 2001-10-16 | 2005-05-31 | Denso Corporation | Emission control system with catalyst warm-up speeding control |
JP2003138960A (ja) | 2001-11-05 | 2003-05-14 | Denso Corp | 内燃機関の触媒早期暖機制御装置 |
JP3815289B2 (ja) * | 2001-10-19 | 2006-08-30 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP3929296B2 (ja) * | 2001-11-30 | 2007-06-13 | トヨタ自動車株式会社 | 内燃機関 |
US6804952B2 (en) * | 2003-02-21 | 2004-10-19 | Toyota Jidosha Kabushiki Kaisha | Catalyst warm up control for diesel engine |
JP4158645B2 (ja) * | 2003-07-31 | 2008-10-01 | 日産自動車株式会社 | 内燃機関の燃焼制御装置 |
JP3988776B2 (ja) * | 2005-07-15 | 2007-10-10 | いすゞ自動車株式会社 | 排気ガス浄化システムの制御方法及び排気ガス浄化システム |
JP4905327B2 (ja) * | 2007-11-13 | 2012-03-28 | トヨタ自動車株式会社 | 内燃機関の排気浄化システム |
JP2010185321A (ja) | 2009-02-10 | 2010-08-26 | Toyota Motor Corp | エンジン制御装置 |
-
2012
- 2012-06-01 US US14/404,400 patent/US9745877B2/en not_active Expired - Fee Related
- 2012-06-01 WO PCT/JP2012/064299 patent/WO2013179487A1/ja active Application Filing
- 2012-06-01 EP EP12877638.2A patent/EP2857647B1/en not_active Not-in-force
- 2012-06-01 JP JP2014518208A patent/JP6128122B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007239624A (ja) * | 2006-03-09 | 2007-09-20 | Toyota Motor Corp | 内燃機関の触媒昇温システムおよび触媒昇温方法 |
JP2008144596A (ja) * | 2006-12-06 | 2008-06-26 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP2011163312A (ja) * | 2010-02-15 | 2011-08-25 | Toyota Motor Corp | 噴射率波形作成方法及び内燃機関の制御装置 |
WO2011118030A1 (ja) * | 2010-03-26 | 2011-09-29 | トヨタ自動車株式会社 | 内燃機関の燃焼制御装置 |
JP2011226312A (ja) * | 2010-04-15 | 2011-11-10 | Isuzu Motors Ltd | 排気ガス浄化装置及び排気ガス浄化装置の制御方法 |
WO2012011148A1 (ja) * | 2010-07-21 | 2012-01-26 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
Also Published As
Publication number | Publication date |
---|---|
US20150107230A1 (en) | 2015-04-23 |
EP2857647B1 (en) | 2017-09-27 |
EP2857647A4 (en) | 2016-01-13 |
US9745877B2 (en) | 2017-08-29 |
JP6128122B2 (ja) | 2017-05-17 |
WO2013179487A1 (ja) | 2013-12-05 |
EP2857647A1 (en) | 2015-04-08 |
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