JP2014105586A - 排気ガス浄化システム及び排気ガス浄化方法 - Google Patents
排気ガス浄化システム及び排気ガス浄化方法 Download PDFInfo
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
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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
- F01N3/02—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
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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
- F01N3/02—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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
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- 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
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- 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
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- 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
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- 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
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
- F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
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- 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
- F02D2200/0812—Particle filter loading
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- 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
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
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- 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
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
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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
- Y02T10/40—Engine management systems
Abstract
【解決手段】内燃機関10の排気通路13にDPF19bを配設している排気ガス浄化システム1において、前記DPF19bに対する強制再生処理の直後に、表層ケーク濾過層形成促進制御、又は、PM発生量軽減制御を一時的に行う。
【選択図】図2
Description
10 エンジン(内燃機関)
13 排気通路
14 EGR通路
19 排気ガス浄化装置
19a 酸化触媒
19b DPF
21 EGR弁
22 第1排気ガス温度センサ
23 第2排気ガス温度センサ
24 差圧センサ
30 制御装置(ECU)
A 吸入空気
f 燃料
G 排気ガス
Ge EGRガス
M30 すり抜け量抑制手段
M31 PM再燃焼終了検知手段
M32 表層ケーク濾過層形成促進制御手段
M32a リタード制御手段
M32b EGR率上昇制御手段
M32c 空燃比リッチ制御手段
M33 PM発生量算出手段
M34 PMすり抜け量算出手段
M35 PM発生量軽減制御手段
M36 表層ケーク濾過層再形成検知手段
T エンジントルク
T1 第1設定値
T2 第2設定値
ta 経過時間
tc 設定時間
X PM発生量
Xc PM発生許容量
Y PMすり抜け量
Yc PMすり抜け許容量
Z PM捕集量
ΣZ PM累積捕集量
ηy PM捕集効率
ηy1 設定された値
ηyc PM捕集復帰効率
ΔP 差圧センサの検出値
ΔPc 設定値
ΔCpm PM濃度差
ΔCpm1 設定された値
Δt1 第1設定時間
Δt2 第2設定時間
Δt3 第3設定時間
Δα 設定した差圧
Claims (10)
- 内燃機関の排気通路にDPFを配設している排気ガス浄化システムにおいて、
前記DPFに対する強制再生処理のPM再燃焼直後に、表層ケーク濾過層形成促進制御、又は、PM発生量軽減制御を一時的に行うことを特徴とする排気ガス浄化システム。 - 前記表層ケーク濾過層形成促進制御が、EGR率上昇によるPM発生量の増加制御、又は、シリンダ内燃焼噴射において燃料の噴射タイミングをリタードさせるリタード制御、又は、シリンダ内燃料噴射において空燃比をリッチとする空燃比リッチ制御の何れかの制御であることを特徴とする請求項1に記載の排気ガス浄化システム。
- 前記PM発生量軽減制御が、EGR率減少によるPM発生量の抑制制御であることを特徴とする請求項1又は2に記載の排気ガス浄化システム。
- 前記表層ケーク濾過層形成促進制御において、
前記内燃機関のエンジントルクが予め設定した第1設定値より低い場合は前記リタード制御を行い、
前記エンジントルクが前記第1設定値以上でかつ予め設定した第2設定値より低い場合は前記EGR率上昇制御を行い、
前記エンジントルクが前記第2設定値以上である場合は前記空燃比リッチ制御を行うことを特徴とする請求項2〜3のいずれか1項に記載の排気ガス浄化システム。 - 前記DPFの強制再生処理のPM再燃焼直後で、前記内燃機関で発生するPMの発生量であるPM発生量が、予め設定されたPM発生許容量を超えた場合、又は、前記DPFを通過するPMの量であるPMすり抜け量が、予め設定されたPMすり抜け許容量を超えた場合に、前記PM発生量軽減制御を行うことを特徴とする請求項1〜4のいずれか1項に記載の排気ガス浄化システム。
- 内燃機関の排気ガスをDPFで浄化する排気ガス浄化方法において、
前記DPFに対する強制再生処理のPM再燃焼直後に、表層ケーク濾過層形成促進制御、又は、PM発生量軽減制御を一時的に行うことを特徴とする排気ガス浄化方法。 - 前記表層ケーク濾過層形成促進制御として、EGR率上昇によるPM発生量の増加制御、又は、シリンダ内燃焼噴射において燃料の噴射タイミングをリタードさせるリタード制御、又は、シリンダ内燃料噴射において空燃比をリッチとする空燃比リッチ制御の何れかの制御を行うことを特徴とする請求項6に記載の排気ガス浄化方法。
- 前記PM発生量軽減制御として、EGR率減少によるPM発生量の抑制制御を行うことを特徴とする請求項6又は7に記載の排気ガス浄化方法。
- 前記表層ケーク濾過層形成促進制御において、
前記内燃機関のエンジントルクが予め設定した第1設定値より低い場合は前記リタード制御を行い、
前記エンジントルクが前記第1設定値以上でかつ予め設定した第2設定値より低い場合は前記EGR率上昇制御を行い、
前記エンジントルクが前記第2設定値以上である場合は前記空燃比リッチ制御を行うことを特徴とする請求項7〜8のいずれか1項に記載の排気ガス浄化方法。 - 前記DPFの強制再生処理のPM再燃焼直後で、前記内燃機関で発生するPMの発生量であるPM発生量が、予め設定されたPM発生許容量を超えた場合、又は、前記DPFを通過するPMの量であるPMすり抜け量が、予め設定されたPMすり抜け許容量を超えた場合に、前記PM発生量軽減制御を行うことを特徴とする請求項6〜9のいずれか1項に記載の排気ガス浄化方法。
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JP2012257190A JP6056414B2 (ja) | 2012-11-26 | 2012-11-26 | 排気ガス浄化システム及び排気ガス浄化方法 |
PCT/JP2013/081101 WO2014080877A1 (ja) | 2012-11-26 | 2013-11-19 | 排気ガス浄化システム及び排気ガス浄化方法 |
US14/439,769 US9624856B2 (en) | 2012-11-26 | 2013-11-19 | Exhaust gas purification system and exhaust gas purification method |
EP13857648.3A EP2924270B1 (en) | 2012-11-26 | 2013-11-19 | Exhaust gas purification system and exhaust gas purification method |
CN201380060886.2A CN104822927B (zh) | 2012-11-26 | 2013-11-19 | 废气净化系统和废气净化方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015121176A (ja) * | 2013-12-24 | 2015-07-02 | 三菱自動車工業株式会社 | 内燃機関の制御装置 |
CN108291495A (zh) * | 2015-12-03 | 2018-07-17 | 五十铃自动车株式会社 | 内燃机及其控制方法 |
JP2018162712A (ja) * | 2017-03-24 | 2018-10-18 | 株式会社Subaru | フィルタ装置 |
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DE102013210896A1 (de) * | 2013-06-11 | 2014-12-11 | Mtu Friedrichshafen Gmbh | Verfahren zum Betrieb einer Abgasnachbehandlung und Einrichtung zum Steuern einer Abgasnachbehandlung sowie Abgasnachbehandlung, Motorsteuergerät und Brennkraftmaschine mit einer Abgasnachbehandlung |
JP6891629B2 (ja) * | 2017-05-19 | 2021-06-18 | いすゞ自動車株式会社 | エンジン及びその制御方法 |
JP6825583B2 (ja) | 2018-01-30 | 2021-02-03 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP7283043B2 (ja) * | 2018-09-18 | 2023-05-30 | 三菱自動車工業株式会社 | 内燃機関の排気制御装置 |
CN113898449A (zh) * | 2020-10-29 | 2022-01-07 | 同济大学 | 一种模型耦合实时传感的dpf再生控制方法 |
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JP2007056750A (ja) * | 2005-08-24 | 2007-03-08 | Toyota Motor Corp | 内燃機関の排気浄化システム |
JP2007230302A (ja) * | 2006-02-28 | 2007-09-13 | Nissan Motor Co Ltd | ディーゼルハイブリッド車両の排気浄化装置 |
JP2010031799A (ja) * | 2008-07-30 | 2010-02-12 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
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BR0318291B1 (pt) * | 2002-07-25 | 2014-01-07 | Sistema de tratamento depois do escapamento de diesel para limpeza de poluentes regulados e não-regulados e método de tratamento do escapamento de um motor diesel | |
JP4100448B1 (ja) * | 2007-01-26 | 2008-06-11 | いすゞ自動車株式会社 | 排気ガス浄化方法及び排気ガス浄化システム |
JP4844467B2 (ja) * | 2007-05-07 | 2011-12-28 | 日産自動車株式会社 | 内燃機関の排気浄化装置 |
JP2009007982A (ja) | 2007-06-27 | 2009-01-15 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP5266865B2 (ja) * | 2008-05-13 | 2013-08-21 | いすゞ自動車株式会社 | 排気ガス浄化システム及びその制御方法 |
JP2011149357A (ja) | 2010-01-22 | 2011-08-04 | Isuzu Motors Ltd | Dpf再生装置 |
DE102010017575B4 (de) | 2010-06-25 | 2012-08-16 | Ford Global Technologies, Llc | Verfahren zum Betreiben einer fremdgezündeten Brennkraftmaschine und Brennkraftmaschine zur Durchführung eines derartigen Verfahrens |
JP2012154255A (ja) | 2011-01-26 | 2012-08-16 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
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2012
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2013
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JP2007056750A (ja) * | 2005-08-24 | 2007-03-08 | Toyota Motor Corp | 内燃機関の排気浄化システム |
JP2007230302A (ja) * | 2006-02-28 | 2007-09-13 | Nissan Motor Co Ltd | ディーゼルハイブリッド車両の排気浄化装置 |
JP2010031799A (ja) * | 2008-07-30 | 2010-02-12 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
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JP2015121176A (ja) * | 2013-12-24 | 2015-07-02 | 三菱自動車工業株式会社 | 内燃機関の制御装置 |
CN108291495A (zh) * | 2015-12-03 | 2018-07-17 | 五十铃自动车株式会社 | 内燃机及其控制方法 |
US10823107B2 (en) | 2015-12-03 | 2020-11-03 | Isuzu Motors Limited | Internal combustion engine and control method for same |
CN108291495B (zh) * | 2015-12-03 | 2021-09-28 | 五十铃自动车株式会社 | 内燃机及其控制方法 |
JP2018162712A (ja) * | 2017-03-24 | 2018-10-18 | 株式会社Subaru | フィルタ装置 |
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WO2014080877A1 (ja) | 2014-05-30 |
US20150292425A1 (en) | 2015-10-15 |
EP2924270A4 (en) | 2016-07-27 |
EP2924270B1 (en) | 2019-04-03 |
EP2924270A1 (en) | 2015-09-30 |
JP6056414B2 (ja) | 2017-01-11 |
US9624856B2 (en) | 2017-04-18 |
CN104822927B (zh) | 2018-04-10 |
CN104822927A (zh) | 2015-08-05 |
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