JP4448103B2 - 内燃機関の吸入空気量を制御する方法 - Google Patents
内燃機関の吸入空気量を制御する方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 123
- 239000003054 catalyst Substances 0.000 claims description 21
- 238000001179 sorption measurement Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 3
- 229960003753 nitric oxide Drugs 0.000 description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 16
- 229910002091 carbon monoxide Inorganic materials 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 13
- 238000011069 regeneration method Methods 0.000 description 13
- 229930195733 hydrocarbon Natural products 0.000 description 12
- 150000002430 hydrocarbons Chemical class 0.000 description 12
- 230000008929 regeneration Effects 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 7
- 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 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000003795 desorption Methods 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000001603 reducing effect Effects 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent 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
- 239000010419 fine particle Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
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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
- F02D41/0002—Controlling intake air
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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
- 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
- F02D41/0275—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 NOx trap or adsorbent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
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- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating conditions
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
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- 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
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
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- 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
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
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- 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
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
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- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/14—Direct injection into combustion chamber
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- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D2041/0022—Controlling intake air for diesel engines by throttle control
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- F02D2250/00—Engine control related to specific problems or objectives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
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- 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
- F02D41/1454—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 an oxygen content or concentration or the air-fuel ratio
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- 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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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
(a) 燃料中の炭化水素の完全燃焼によって発生した二酸化炭素(CO2)と水蒸気(H2O)
(b) 燃料中の炭化水素の不完全燃焼によって発生した未燃炭化水素(HC)と一酸化炭素(CO)
(c) エンジンに吸入された空気に含まれる窒素の酸化によって発生した窒素酸化物(NOx)
(d) 主として噴射された燃料の不完全燃焼によって発生した微粒子(パティキュレート)
CO+HC+O2 → CO2+H2O
NOx+CO+HC → N2+CO2+H2O
NO + 1/2 O2 → NO2
BaO + NO2 + 1/2 O2 → Ba(NO3)2
Ba(NO3)2 → BaO + 2NO + 1/2 O2
Ba(NO3)2 → BaO + 2NO2 + 1/2 O2
NO + CO → 1/2 N2 + CO2
燃焼室の中で得られる基準空燃比((A/F)REF)の関数としてエンジンの吸入空気量を制御すること、を含み、また
エンジン(1)が発生した排気ガス中の酸素濃度(%O2)の関数としてもエンジン(1)の吸入空気量を制御することを含むことを特徴としている。
λREF = (A/F)REF/(A/F)STOICH
Claims (11)
- 内燃機関(1)の吸入空気量を制御するための方法であって、
燃焼室の中で得られる基準空燃比((A/F)REF)を算出する工程、
エンジン(1)が発生した排気ガス中の酸素濃度(%O2)を測定する工程、
前記基準空燃比((A/F)REF)および前記酸素濃度(%O2)に基づいて基準吸入空気量(AREF)を算出する工程および
前記基準吸入空気量(AREF)に基づいてエンジン(1)の吸入空気量を制御する工程からなる内燃機関(1)の吸入空気量を制御するための方法であって、
前記基準吸入空気量(AREF)を算出する工程が、
基準空燃比((A/F)REF)に基づいて基準吸入空気量(AREF)に対するフィードフォワード操作量(AFF)を算出することと、
排気ガス中の酸素濃度(%O2)に基づいて基準吸入空気量(AREF)に対するフィードバック操作量(AFB)を算出することと、
前記フィードフォワード操作量(AFF)および前記フィードバック操作量(AFB)に基づいて前記基準吸入空気量(AREF)を算出すること、とを含み、
フィードバック操作量(AFB)の算出が、
排気ガス中の酸素濃度(%O2)に基づいて測定ラムダ(λMEAS)を決定することと、
基準空燃比((A/F)REF)および測定ラムダ(λMEAS)に基づいて前記フィードバック操作量(AFB)を算出することを含むことを特徴とする方法。 - 前記フィードバック操作量(AFB)の算出が、基準空燃比((A/F)REF)および測定ラムダ(λMEAS)に基づいてエラー(ERR)を算出すること、および
該エラー(ERR)に基づいて前記フィードバック操作量(AFB)を算出することからなる請求項1記載の方法。 - 前記エラーに基づいて前記フィードバック操作量(AFB)を算出することが、
比例積分導関数(PID)制御を実行することを特徴とする請求項2記載の方法。 - 前記エラー(ERR)が、
スピードRPMとエンジン負荷の関数としての基準ラムダ(λ REF )から前記測定ラムダ(λMEAS )を減算することにより算出されることを特徴とする請求項2または3記載の方法。 - 基準空気量(AREF)を算出することが、
前記フィードフォワード操作量(AFF)と前記フィードバック操作量(AFB)とを加算することを含む請求項1〜4のいずれかに記載の方法。 - 前記基準吸入空気量(AREF)に基づいてエンジン(1)の吸入空気量を制御する工程が、測定空気量AMEASを計測すること、および測定空気量AMEASが実質的に基準吸入空気量(AREF)に等しくなるように閉ループ制御される請求項1〜5のいずれかに記載の方法。
- 前記エンジンの吸入空気量を制御することが、
前記エンジン(1)の内部において排気ガスの再循環を制御することを含む請求項1〜6のいずれかに記載の方法。 - 請求項1〜7のいずれかに記載された方法を用いて前記エンジン(1)の吸入空気量を制御する装置(9)。
- 内燃機関(1)の排気ガスの後処理装置(9,16)を制御する方法において、
請求項1〜7のいずれかに記載された方法を用いて前記エンジン(1)の吸入空気量を制御する方法。 - 前記排気ガスの後処理装置(9,16)が、窒素酸化物吸着触媒(16)を含む請求項9記載の方法。
- 請求項9または10の方法を用いて内燃機関(1)の排気ガスの後処理装置(9,16)を制御する装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05425285A EP1722086B1 (en) | 2005-05-03 | 2005-05-03 | Method of controlling air intake flow of an internal combustion engine, in particular for regenerating a nitric oxide adsorber |
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JP2006312933A JP2006312933A (ja) | 2006-11-16 |
JP4448103B2 true JP4448103B2 (ja) | 2010-04-07 |
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JP2006113780A Active JP4448103B2 (ja) | 2005-05-03 | 2006-04-17 | 内燃機関の吸入空気量を制御する方法 |
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Country | Link |
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US (1) | US7918083B2 (ja) |
EP (1) | EP1722086B1 (ja) |
JP (1) | JP4448103B2 (ja) |
AT (1) | ATE460580T1 (ja) |
DE (1) | DE602005019859D1 (ja) |
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CN103282626A (zh) * | 2010-12-22 | 2013-09-04 | 雷诺股份公司 | 用于在过渡状态对机动车辆内燃发动机进行控制的系统和方法 |
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US7540279B2 (en) * | 2007-05-15 | 2009-06-02 | Deere & Comapny | High efficiency stoichiometric internal combustion engine system |
EP2617975A1 (en) * | 2009-12-23 | 2013-07-24 | FPT Motorenforschung AG | Method and device for adjusting nox estimation in combustion engines |
JP5765921B2 (ja) * | 2010-11-19 | 2015-08-19 | 日野自動車株式会社 | 内燃機関 |
JP6471857B2 (ja) * | 2015-03-03 | 2019-02-20 | いすゞ自動車株式会社 | 排気浄化システム |
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JP3405183B2 (ja) * | 1998-03-30 | 2003-05-12 | トヨタ自動車株式会社 | 圧縮着火式内燃機関 |
DE20108652U1 (de) * | 2001-05-23 | 2002-09-26 | Amft Karl Heinrich | Regelvorrichtung für die Abgasqualität eines Kraftfahrzeugs |
JP2003065116A (ja) * | 2001-08-24 | 2003-03-05 | Nissan Motor Co Ltd | 内燃機関の排気浄化装置 |
JP4075755B2 (ja) * | 2003-09-22 | 2008-04-16 | トヨタ自動車株式会社 | 内燃機関のフィルタ過昇温抑制方法 |
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CN103282626A (zh) * | 2010-12-22 | 2013-09-04 | 雷诺股份公司 | 用于在过渡状态对机动车辆内燃发动机进行控制的系统和方法 |
CN103282626B (zh) * | 2010-12-22 | 2016-05-04 | 雷诺股份公司 | 用于在过渡状态对机动车辆内燃发动机进行控制的系统和方法 |
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JP2006312933A (ja) | 2006-11-16 |
EP1722086A1 (en) | 2006-11-15 |
EP1722086B1 (en) | 2010-03-10 |
ATE460580T1 (de) | 2010-03-15 |
US20060248878A1 (en) | 2006-11-09 |
US7918083B2 (en) | 2011-04-05 |
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