JP5071819B2 - 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
- Publication number
- JP5071819B2 JP5071819B2 JP2009262506A JP2009262506A JP5071819B2 JP 5071819 B2 JP5071819 B2 JP 5071819B2 JP 2009262506 A JP2009262506 A JP 2009262506A JP 2009262506 A JP2009262506 A JP 2009262506A JP 5071819 B2 JP5071819 B2 JP 5071819B2
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- Prior art keywords
- internal combustion
- combustion engine
- oxygen concentration
- amount
- exhaust
- Prior art date
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- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 title claims description 105
- 238000000746 purification Methods 0.000 title claims description 18
- 238000002347 injection Methods 0.000 claims description 102
- 239000007924 injection Substances 0.000 claims description 102
- 239000000446 fuel Substances 0.000 claims description 56
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 48
- 239000001301 oxygen Substances 0.000 claims description 48
- 229910052760 oxygen Inorganic materials 0.000 claims description 48
- 206010021143 Hypoxia Diseases 0.000 claims description 43
- 239000013618 particulate matter Substances 0.000 claims description 38
- 239000007789 gas Substances 0.000 claims description 34
- 230000009467 reduction Effects 0.000 claims description 27
- 230000007423 decrease Effects 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 32
- 238000013021 overheating Methods 0.000 description 11
- 230000001629 suppression Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 102100031460 Advillin Human genes 0.000 description 1
- 101000729999 Homo sapiens Advillin Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F02D41/029—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 the exhaust gas treating apparatus being a particulate filter
-
- 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
- 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
- F01N3/103—Oxidation catalysts for HC and CO only
-
- 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
- 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
- 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
- F02D41/402—Multiple injections
- F02D41/405—Multiple injections with post injections
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/08—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying ignition or injection timing
- F01N2430/085—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying ignition or injection timing at least a part of the injection taking place during expansion or exhaust stroke
-
- 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
- F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
- F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
-
- 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)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas After Treatment (AREA)
Description
V(m3 /sec)
=[G(g/sec)/28.8(g/mol)]
×22.4×10−3(m3 /mol)
×[Tdpf(K)/273(K)]
×[P0(kPa)/(P0(kPa)+ΔP(kPa))]
+Q(cc/sec)/207.3(g/mol)
×0.84(g/cc)×6.75
×22.4×10−3(m3 /mol)
×[P0(kPa)/(P0(kPa)+ΔP(kPa))] (E1)
C15H27.3+21.75O2 →15CO2 +13.5H2 O (E2)
2 ディーゼルエンジン(内燃機関)
3 吸気管
4 排気管(排気通路)
7 ディーゼルパティキュレートフィルタ(DPF、フィルタ)
8 電子制御装置(ECU)
21 インジェクタ
22 エンジン回転数センサ
31 エアフロメータ
32 吸気スロットル
41 酸素濃度センサ
42 排気温度センサ
70 差圧センサ
Claims (10)
- 内燃機関の排気通路に配置されて粒子状物質を捕集するフィルタと、
そのフィルタよりも上流の位置に配置された酸化触媒と、
前記フィルタに堆積した粒子状物質が燃焼する際に、過昇温発生の可能性がある場合に、過昇温を抑制するように、前記内燃機関への吸気量の低減と、内燃機関の筒内における主噴射よりも後の燃料噴射とにより、前記フィルタに流入する排気中の酸素濃度を低減する酸欠制御手段と、
その酸欠制御手段が酸素濃度の低減制御を実行する際に、失火及びエンジンストールを抑制するように、内燃機関の回転数変化に応じて、燃料噴射量、燃料噴射時期、吸気量の少なくとも1つの指示値を調節する調節手段と、
を備えたことを特徴とする内燃機関の排気浄化装置。 - 前記調節手段は、酸素濃度の低減制御を実行している期間に、前記内燃機関がアイドル運転状態である状況での前記内燃機関の回転数が低下した場合の燃料噴射量を、酸素濃度の低減制御を実行しない場合よりも回転が低下するほど大きくする請求項1に記載の内燃機関の排気浄化装置。
- 前記調節手段は、酸素濃度の低減制御を実行している期間に、前記内燃機関がアイドル運転状態である状況で、前記内燃機関の回転数の目標回転数からの低下量に対する、燃料噴射量増加割合を酸素濃度の低減制御を実行しない場合よりも大きくする請求項1に記載の内燃機関の排気浄化装置。
- 前記調節手段は、酸素濃度の低減制御を実行している期間に、前記内燃機関の回転数の低下に応じて、燃料噴射時期を、酸素濃度の低減制御を実行しない場合よりも進角させる請求項1乃至3のいずれか1項に記載の内燃機関の排気浄化装置。
- 前記内燃機関の燃焼状態が所定の不安定状態にあることを検出する検出手段を備え、
前記調節手段は、酸素濃度の低減制御を実行している期間に、前記検出手段が内燃機関の燃焼状態が不安定であると検出した場合に、内燃機関の燃焼状態が不安定であると検出しない場合よりも燃料噴射時期を進角させる請求項1乃至4のいずれか1項に記載の内燃機関の排気浄化装置。 - 前記調節手段は、酸素濃度の低減制御を実行している期間に、前記内燃機関の回転数の低下に応じて吸気量を増加させる請求項1乃至5のいずれか1項に記載の内燃機関の排気浄化装置。
- 前記内燃機関の燃焼状態が所定の不安定状態にあることを検出する検出手段を備え、
前記調節手段は、酸素濃度の低減制御を実行している期間に、前記検出手段が内燃機関の燃焼状態が不安定であると検出した場合に、吸気量を増加させる請求項1乃至6のいずれか1項に記載の内燃機関の排気浄化装置。 - 前記調節手段は、吸気量を増加させた場合に、筒内でメイン噴射よりも遅角側のトルクに影響しない燃料噴射量を増量する請求項1乃至7のいずれか1項に記載の内燃機関の排気浄化装置。
- 前記検出手段は前記内燃機関の角速度変動の大きさを筒内燃焼の不安定度を示す数値として検出する請求項5又は7に記載の内燃機関の排気浄化装置。
- 前記検出手段は前記内燃機関の筒内圧の変動の大きさを筒内燃焼の不安定度を示す数値として検出する請求項5又は7に記載の内燃機関の排気浄化装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009262506A JP5071819B2 (ja) | 2009-11-18 | 2009-11-18 | 内燃機関の排気浄化装置 |
DE102010044067A DE102010044067A1 (de) | 2009-11-18 | 2010-11-17 | Abgasreinigungssystem für eine Brennkraftmaschine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009262506A JP5071819B2 (ja) | 2009-11-18 | 2009-11-18 | 内燃機関の排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011106349A JP2011106349A (ja) | 2011-06-02 |
JP5071819B2 true JP5071819B2 (ja) | 2012-11-14 |
Family
ID=43877818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009262506A Expired - Fee Related JP5071819B2 (ja) | 2009-11-18 | 2009-11-18 | 内燃機関の排気浄化装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5071819B2 (ja) |
DE (1) | DE102010044067A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013014990A1 (de) | 2013-09-10 | 2015-03-12 | Man Diesel & Turbo Se | Abgasnachbehandlungssystem einer Brennkraftmaschine und Verfahren zum Betreiben desselben |
JP6036751B2 (ja) * | 2014-06-10 | 2016-11-30 | トヨタ自動車株式会社 | 制御装置 |
US10697384B2 (en) | 2015-05-29 | 2020-06-30 | Toyota Jidosha Kabushiki Kaisha | Control device and control method for engine |
JP6866660B2 (ja) * | 2017-02-01 | 2021-04-28 | スズキ株式会社 | 内燃機関の制御装置 |
JP7478606B2 (ja) * | 2020-06-26 | 2024-05-07 | 日産自動車株式会社 | 内燃機関の排気後処理の保護方法及び内燃機関の排気後処理装置 |
CN117072337B (zh) * | 2023-10-13 | 2024-02-20 | 潍柴动力股份有限公司 | 发动机参数的修正方法、装置、电子设备和存储介质 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2560287B2 (ja) * | 1986-03-27 | 1996-12-04 | 三菱自動車工業株式会社 | タツプ時におけるエンジンのa/n異常低下防止装置 |
JPS63268956A (ja) * | 1987-04-27 | 1988-11-07 | Mazda Motor Corp | エンジンの制御装置 |
JP2822804B2 (ja) * | 1992-08-28 | 1998-11-11 | 日産自動車株式会社 | 内燃機関の制御装置 |
JPH06137188A (ja) * | 1992-10-26 | 1994-05-17 | Mazda Motor Corp | エンジンの燃料制御装置 |
JPH10252532A (ja) * | 1997-03-17 | 1998-09-22 | Toyota Motor Corp | 内燃機関の燃料カット制御装置 |
JP2002188463A (ja) * | 2000-12-15 | 2002-07-05 | Suzuki Motor Corp | 内燃機関の電子スロットル制御装置 |
JP2002188493A (ja) | 2000-12-21 | 2002-07-05 | Isuzu Ceramics Res Inst Co Ltd | デイーゼル機関の排気浄化装置 |
JP4042388B2 (ja) * | 2001-11-12 | 2008-02-06 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP3767483B2 (ja) * | 2002-01-08 | 2006-04-19 | 日産自動車株式会社 | 内燃機関の排気浄化装置 |
JP2005048747A (ja) * | 2003-07-31 | 2005-02-24 | Nissan Motor Co Ltd | 内燃機関の燃焼制御装置 |
JP2006183494A (ja) * | 2004-12-27 | 2006-07-13 | Nissan Motor Co Ltd | 内燃機関の制御装置 |
JP4574395B2 (ja) * | 2005-02-28 | 2010-11-04 | ヤンマー株式会社 | パティキュレートフィルタ再生機能を有する排ガス浄化装置及びその排ガス浄化装置を備えた内燃機関並びにパティキュレートフィルタ再生方法 |
JP4600308B2 (ja) * | 2006-02-10 | 2010-12-15 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
-
2009
- 2009-11-18 JP JP2009262506A patent/JP5071819B2/ja not_active Expired - Fee Related
-
2010
- 2010-11-17 DE DE102010044067A patent/DE102010044067A1/de active Pending
Also Published As
Publication number | Publication date |
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JP2011106349A (ja) | 2011-06-02 |
DE102010044067A1 (de) | 2011-05-19 |
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