JP4513779B2 - 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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- JP4513779B2 JP4513779B2 JP2006121613A JP2006121613A JP4513779B2 JP 4513779 B2 JP4513779 B2 JP 4513779B2 JP 2006121613 A JP2006121613 A JP 2006121613A JP 2006121613 A JP2006121613 A JP 2006121613A JP 4513779 B2 JP4513779 B2 JP 4513779B2
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- Japan
- Prior art keywords
- exhaust
- internal combustion
- combustion engine
- exhaust gas
- reducing agent
- Prior art date
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- Expired - Fee Related
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Classifications
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with 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
- F01N3/02—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
- F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/36—Arrangements for supply of additional fuel
-
- 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
- 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
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- 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
- F02D41/1445—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 related to the exhaust flow
-
- 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
- F02D41/1446—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 exhaust temperatures
- F02D41/1447—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 exhaust temperatures with determination means using an estimation
-
- 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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Description
内燃機関の排気通路に配置された排気浄化手段より上流の排気中へ還元剤を添加する還元剤添加手段を備えた内燃機関の排気浄化装置において、
前記内燃機関の気筒の排気弁が開弁する時の筒内圧を検出する筒内圧検出手段と、
前記筒内圧検出手段により検出された筒内圧に基づいて、前記排気通路における前記還元剤添加手段の還元剤添加位置を通過する排気の流速又は温度を推定する推定手段と、
前記推定手段により推定された排気の流速又は温度に基づいて、還元剤の添加量を調整する添加制御手段と、
を備えることを特徴とする内燃機関の排気浄化装置である。
て還元剤の添加量を調整することとした。
図1は、本発明の実施例1に係る排気浄化装置を適用する内燃機関とその吸排気系の概略構成を示す図である。
M、RAM、バックアップRAMなどからなる制御コンピュータである。
曲線的な流速の変動が筒内圧のマップから導かれ、今回の流速の開始点が前回の燃料添加制御で推定された流速の終了点につながるように推定される。また、排気の温度は、排気の流速が最大となる時点での温度が筒内圧のマップから導かれ、この温度と前回の燃料添加制御での排気の流速が最大となる時点での温度とを直線で結んで直線的に変動するよう推定される。次に、S103へ移行する。
2・・・・・気筒
3・・・・・ピストン
4・・・・・吸気ポート
5・・・・・排気ポート
6・・・・・吸気弁
7・・・・・排気弁
8・・・・・吸気通路
9・・・・・排気通路
10・・・・燃料噴射弁
11・・・・筒内圧センサ
12・・・・フィルタ
13・・・・燃料添加弁
14・・・・ECU
Claims (4)
- 内燃機関の排気通路に配置された排気浄化手段より上流の排気中へ還元剤を添加する還元剤添加手段を備えた内燃機関の排気浄化装置において、
前記内燃機関の気筒の排気弁が開弁する時の筒内圧を検出する筒内圧検出手段と、
前記筒内圧検出手段により検出された筒内圧のみに基づいて、前記排気通路における前記還元剤添加手段の還元剤添加位置を通過する排気の流速又は温度を推定する推定手段と、
前記推定手段により推定された排気の流速又は温度に基づいて、還元剤の添加量を調整する添加制御手段と、
を備えることを特徴とする内燃機関の排気浄化装置。 - 前記内燃機関は、複数の気筒を有し、
前記筒内圧検出手段は、前記内燃機関の各気筒の排気弁が開弁する時の筒内圧を検出することを特徴とする請求項1に記載の内燃機関の排気浄化装置。 - 前記推定手段は、前記筒内圧検出手段により検出された筒内圧が高くなる程、排気の流速又は温度が高くなると推定し、
前記添加制御手段は、前記推定手段により推定された排気の流速又は温度が高くなる程、還元剤の添加量を増量することを特徴とする請求項1又は2に記載の内燃機関の排気浄化装置。 - 前記推定手段は、1回当たりの排気行程期間に排出された排気の流速が最大となるタイミングを推定し、
前記添加制御手段は、前記推定手段により推定されたタイミングに基づいて、還元剤の添加時期を調整することを特徴とする請求項1〜3のいずれか1項に記載の内燃機関の排気浄化装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006121613A JP4513779B2 (ja) | 2006-04-26 | 2006-04-26 | 内燃機関の排気浄化装置 |
EP07742856A EP2013454B1 (en) | 2006-04-26 | 2007-04-26 | Exhaust gas purification apparatus for an internal combustion engine |
PCT/JP2007/059421 WO2007126131A1 (en) | 2006-04-26 | 2007-04-26 | Exhaust gas purification apparatus for an internal combustion engine |
CN2007800144839A CN101427009B (zh) | 2006-04-26 | 2007-04-26 | 用于内燃机的废气净化装置 |
DE602007007929T DE602007007929D1 (de) | 2006-04-26 | 2007-04-26 | Abgasreinigungsvorrichtung für einen verbrennungsmotor |
US12/226,611 US20090229257A1 (en) | 2006-04-26 | 2007-04-26 | Exhaust Gas Purification Apparatus for an Internal Combustion Engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006121613A JP4513779B2 (ja) | 2006-04-26 | 2006-04-26 | 内燃機関の排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007291969A JP2007291969A (ja) | 2007-11-08 |
JP4513779B2 true JP4513779B2 (ja) | 2010-07-28 |
Family
ID=38219023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006121613A Expired - Fee Related JP4513779B2 (ja) | 2006-04-26 | 2006-04-26 | 内燃機関の排気浄化装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090229257A1 (ja) |
EP (1) | EP2013454B1 (ja) |
JP (1) | JP4513779B2 (ja) |
CN (1) | CN101427009B (ja) |
DE (1) | DE602007007929D1 (ja) |
WO (1) | WO2007126131A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2929643B1 (fr) * | 2008-04-04 | 2010-06-04 | Faurecia Sys Echappement | Vaporisateur de gasoil |
FR2930289A3 (fr) * | 2008-04-16 | 2009-10-23 | Renault Sas | Procede de commande d'alimentation en carburant d'une ligne d'echappement d'un moteur a combustion et dispositif mettant en oeuvre le procede |
JP2011190778A (ja) * | 2010-03-16 | 2011-09-29 | Toyota Motor Corp | 内燃機関の制御装置 |
GB2492355B (en) * | 2011-06-28 | 2017-01-11 | Gm Global Tech Operations Llc | Method for evaluating an exhaust gas temperature in a exhaust pipe of an internal combustion engine |
JP5768767B2 (ja) * | 2012-06-19 | 2015-08-26 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
EP3325783A1 (de) * | 2015-07-24 | 2018-05-30 | Mtu Friedrichshafen Gmbh | Verfahren zur eindosierung eines reaktionsmittels in einen abgaspfad einer brennkraftmaschine und brennkraftmaschine |
JP6490239B2 (ja) * | 2015-12-16 | 2019-03-27 | 株式会社電子応用 | 燃焼状態推定装置 |
JP6805021B2 (ja) * | 2017-02-21 | 2020-12-23 | 株式会社Soken | 燃料添加装置 |
JP2019120239A (ja) * | 2018-01-11 | 2019-07-22 | 株式会社デンソー | 内燃機関の制御装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001280125A (ja) * | 2000-03-31 | 2001-10-10 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP2002038939A (ja) * | 2000-07-24 | 2002-02-06 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
DE10124596A1 (de) * | 2001-05-21 | 2002-11-28 | Volkswagen Ag | Verfahren und Vorrichtung zur Bestimmung der Gasaustrittstemperatur oder Gaseintrittstemperatur eines Verbrennungsmotors |
JP2004232487A (ja) * | 2003-01-28 | 2004-08-19 | Toyota Motor Corp | 内燃機関の排気状態検出装置 |
Family Cites Families (13)
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JPH08232743A (ja) * | 1995-02-27 | 1996-09-10 | Isuzu Motors Ltd | 排気ガス中のNOx 低減装置 |
JP3282660B2 (ja) * | 1997-06-16 | 2002-05-20 | 本田技研工業株式会社 | 内燃機関の排気ガス浄化装置 |
US6470673B1 (en) * | 2000-02-22 | 2002-10-29 | Ford Global Technologies, Inc. | Control of a NOX reductant delivery system |
US6679200B2 (en) * | 2002-06-11 | 2004-01-20 | Delphi Technologies, Inc. | Direct in-cylinder reductant injection system and a method of implementing same |
US20040093856A1 (en) * | 2002-11-18 | 2004-05-20 | Dingle Philip J. G. | Apparatus and method for reductant dosing of an exhaust |
CA2441686C (en) * | 2003-09-23 | 2004-12-21 | Westport Research Inc. | Method for controlling combustion in an internal combustion engine and predicting performance and emissions |
JP3903977B2 (ja) * | 2003-10-17 | 2007-04-11 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置及び内燃機関の排気浄化方法 |
DE102004001118B4 (de) * | 2004-01-07 | 2018-08-23 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
US20050252201A1 (en) * | 2004-05-17 | 2005-11-17 | Lecea Oscar A | Method and apparatus for reducing NOx emissions |
JP4204519B2 (ja) * | 2004-06-14 | 2009-01-07 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP2007023807A (ja) * | 2005-07-12 | 2007-02-01 | Toyota Motor Corp | エンジンの排気浄化装置 |
FR2891868B1 (fr) * | 2005-10-07 | 2007-12-21 | Renault Sas | Procede d'estimation de la temperature d'echappement d'un moteur, et procede de diagnostic d'un capteur de pression cylindre utilisant une estimation de la temperature d'echappement. |
US7886528B2 (en) * | 2008-02-29 | 2011-02-15 | Perkins Engines Company Limited | System for controlling exhaust aftertreatment |
-
2006
- 2006-04-26 JP JP2006121613A patent/JP4513779B2/ja not_active Expired - Fee Related
-
2007
- 2007-04-26 US US12/226,611 patent/US20090229257A1/en not_active Abandoned
- 2007-04-26 DE DE602007007929T patent/DE602007007929D1/de active Active
- 2007-04-26 WO PCT/JP2007/059421 patent/WO2007126131A1/en active Application Filing
- 2007-04-26 CN CN2007800144839A patent/CN101427009B/zh not_active Expired - Fee Related
- 2007-04-26 EP EP07742856A patent/EP2013454B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001280125A (ja) * | 2000-03-31 | 2001-10-10 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP2002038939A (ja) * | 2000-07-24 | 2002-02-06 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
DE10124596A1 (de) * | 2001-05-21 | 2002-11-28 | Volkswagen Ag | Verfahren und Vorrichtung zur Bestimmung der Gasaustrittstemperatur oder Gaseintrittstemperatur eines Verbrennungsmotors |
JP2004232487A (ja) * | 2003-01-28 | 2004-08-19 | Toyota Motor Corp | 内燃機関の排気状態検出装置 |
Also Published As
Publication number | Publication date |
---|---|
US20090229257A1 (en) | 2009-09-17 |
JP2007291969A (ja) | 2007-11-08 |
EP2013454A1 (en) | 2009-01-14 |
EP2013454B1 (en) | 2010-07-21 |
WO2007126131A1 (en) | 2007-11-08 |
DE602007007929D1 (de) | 2010-09-02 |
CN101427009A (zh) | 2009-05-06 |
CN101427009B (zh) | 2010-12-15 |
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