JP2006299952A - 排気ガス浄化方法及び排気ガス浄化システム - Google Patents
排気ガス浄化方法及び排気ガス浄化システム Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 26
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- 238000002347 injection Methods 0.000 claims abstract description 120
- 239000007924 injection Substances 0.000 claims abstract description 120
- 239000003054 catalyst Substances 0.000 claims abstract description 106
- 230000008929 regeneration Effects 0.000 claims abstract description 81
- 238000011069 regeneration method Methods 0.000 claims abstract description 81
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- 239000000243 solution Substances 0.000 abstract 1
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- 238000006722 reduction reaction Methods 0.000 description 40
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- 229910052760 oxygen Inorganic materials 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 11
- 238000011084 recovery Methods 0.000 description 11
- 229910052717 sulfur Inorganic materials 0.000 description 11
- 239000011593 sulfur Substances 0.000 description 11
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- 238000009825 accumulation Methods 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
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- 230000000607 poisoning effect Effects 0.000 description 5
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
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- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- XAQHXGSHRMHVMU-UHFFFAOYSA-N [S].[S] Chemical compound [S].[S] XAQHXGSHRMHVMU-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
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- 239000011734 sodium Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- -1 potassium (K) Chemical class 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium(II) oxide Chemical compound [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
-
- 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
- F01N13/0097—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 the purifying devices are arranged in a single housing
-
- 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
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the 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
- 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
-
- 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
- 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
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
- F02D41/307—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes to avoid torque shocks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
【解決手段】 吸気量を減少する吸気系の制御とシリンダ内への燃料噴射量を増加する燃料系の制御とを併用して前記再生制御のリッチ状態の制御を行う排気ガス浄化システム1において、前記NOx浄化触媒12の再生制御に際してのリーン状態とリッチ状態の切り替え期間の間t1、t2、時々刻々のシリンダ内の燃焼空燃比の変化λnに対応させて、シリンダ内への燃料噴射の噴射時期Tnを変化させる。
【選択図】 図3
Description
1 排気ガス浄化システム
2 吸気通路
3 排気通路
4 EGR通路
8 吸気絞り弁(吸気スロットル弁)
12 EGR弁
16 燃料噴射弁
20 排気ガス浄化装置
21 酸化触媒
22 NOx吸蔵還元型触媒
23 第1排気成分濃度センサ
24 第2排気成分濃度センサ
C10 再生制御手段
C11 再生開始判定手段
C12 リッチ移行制御手段
C13 再生継続制御手段
C14 再生終了判定手段
C15 リーン移行制御手段
C16 吸気系リッチ制御手段
C17 燃料系リッチ制御手段
Claims (7)
- 排気ガスの空燃比が、リーン状態の場合にNOxを浄化し、かつ、リッチ状態の場合にNOx浄化能力を回復するNOx浄化触媒と、前記NOx浄化触媒のNOx浄化能力を回復するための再生制御を行う触媒再生制御手段とを備え、吸気量を減少する吸気系の制御とシリンダ内への燃料噴射量を増加する燃料系の制御とを併用して前記再生制御のリッチ状態の制御を行う排気ガス浄化システムにおいて、
前記NOx浄化触媒の再生制御に際してのリーン状態とリッチ状態の切り替え期間の間、時々刻々のシリンダ内の燃焼空燃比の変化に対応させて、シリンダ内への燃料噴射の噴射時期を変化させることを特徴とする排気ガス浄化方法。 - 前記再生制御の初期のリーン状態からリッチ状態への切り替えの間、時々刻々のシリンダ内の燃焼空燃比の変化に基づいて算出された燃料噴射時期になるように、シリンダ内への燃料噴射時期を進角させることを特徴とする請求項1記載の排気ガス浄化方法。
- 前記再生制御の終期のリッチ状態からリーン状態への切り替えの間、時々刻々のシリンダ内の燃焼空燃比の変化に基づいて算出された燃料噴射時期になるように、シリンダ内への燃料噴射時期を遅角させることを特徴とする請求項1又は2記載の排気ガス浄化方法。
- 排気ガスの空燃比が、リーン状態の場合にNOxを浄化し、かつ、リッチ状態の場合にNOx浄化能力を回復するNOx浄化触媒と、前記NOx浄化触媒のNOx浄化能力を回復するための再生制御を行う触媒再生制御手段とを備え、吸気量を減少する吸気系の制御とシリンダ内への燃料噴射量を増加する燃料系の制御とを併用して前記再生制御のリッチ状態の制御を行う排気ガス浄化システムにおいて、
前記触媒再生制御手段が、前記NOx浄化触媒の再生制御に際してのリーン状態とリッチ状態の切り替え期間の間、時々刻々のシリンダ内の燃焼空燃比の変化に対応させて、シリンダ内への燃料噴射の噴射時期を変化させることを特徴とする排気ガス浄化システム。 - 前記触媒再生制御手段が、前記再生制御の初期のリーン状態からリッチ状態への切り替えの間、時々刻々のシリンダ内の燃焼空燃比の変化に基づいて算出された燃料噴射時期になるように、シリンダ内への燃料噴射時期を進角させることを特徴とする請求項4記載の排気ガス浄化システム。
- 前記触媒再生制御手段が、前記再生制御の終期のリッチ状態からリーン状態への切り替えの間、時々刻々のシリンダ内の燃焼空燃比の変化に基づいて算出された燃料噴射時期になるように、シリンダ内への燃料噴射時期を遅角させることを特徴とする請求項4又は5記載の排気ガス浄化システム。
- 前記NOx浄化触媒が、排気ガスの空燃比が、リーン状態の場合にNOxを吸蔵し、かつ、リッチ状態の場合に吸蔵していたNOxを放出すると共に還元するNOx吸蔵還元型触媒、又は、排気ガスの空燃比が、リーン状態の場合にNOxを還元浄化し、かつ、リッチ状態の場合にNOx浄化能力を回復するNOx直接還元型触媒であることを特徴とする請求項4〜6記載の排気ガス浄化システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005123475A JP3901194B2 (ja) | 2005-04-21 | 2005-04-21 | 排気ガス浄化方法及び排気ガス浄化システム |
CN200680013118.1A CN101163871B (zh) | 2005-04-21 | 2006-04-20 | 废气净化方法及废气净化*** |
EP06732139A EP1873381B1 (en) | 2005-04-21 | 2006-04-20 | Exhaust gas purifying method and purifier |
PCT/JP2006/308281 WO2006115158A1 (ja) | 2005-04-21 | 2006-04-20 | 排気ガス浄化方法及び排気ガス浄化システム |
US11/886,688 US8186148B2 (en) | 2005-04-21 | 2006-04-20 | Exhaust gas purifying method and purifier |
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JP2005123475A JP3901194B2 (ja) | 2005-04-21 | 2005-04-21 | 排気ガス浄化方法及び排気ガス浄化システム |
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JP2006299952A true JP2006299952A (ja) | 2006-11-02 |
JP3901194B2 JP3901194B2 (ja) | 2007-04-04 |
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JP2005123475A Expired - Fee Related JP3901194B2 (ja) | 2005-04-21 | 2005-04-21 | 排気ガス浄化方法及び排気ガス浄化システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US8186148B2 (ja) |
EP (1) | EP1873381B1 (ja) |
JP (1) | JP3901194B2 (ja) |
CN (1) | CN101163871B (ja) |
WO (1) | WO2006115158A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008232052A (ja) * | 2007-03-22 | 2008-10-02 | Honda Motor Co Ltd | 内燃機関の制御装置 |
JP2015129455A (ja) * | 2014-01-07 | 2015-07-16 | マツダ株式会社 | ハイブリッド車 |
WO2016039451A1 (ja) * | 2014-09-12 | 2016-03-17 | いすゞ自動車株式会社 | 排気浄化システム |
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2005
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2006
- 2006-04-20 WO PCT/JP2006/308281 patent/WO2006115158A1/ja active Application Filing
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- 2006-04-20 CN CN200680013118.1A patent/CN101163871B/zh active Active
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JP2016061142A (ja) * | 2014-09-12 | 2016-04-25 | いすゞ自動車株式会社 | 排気浄化システム |
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Also Published As
Publication number | Publication date |
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WO2006115158A1 (ja) | 2006-11-02 |
CN101163871A (zh) | 2008-04-16 |
EP1873381A4 (en) | 2009-11-11 |
EP1873381A1 (en) | 2008-01-02 |
JP3901194B2 (ja) | 2007-04-04 |
US20080202098A1 (en) | 2008-08-28 |
US8186148B2 (en) | 2012-05-29 |
EP1873381B1 (en) | 2011-12-07 |
CN101163871B (zh) | 2010-07-14 |
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