JP5004036B2 - 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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- JP5004036B2 JP5004036B2 JP2009127459A JP2009127459A JP5004036B2 JP 5004036 B2 JP5004036 B2 JP 5004036B2 JP 2009127459 A JP2009127459 A JP 2009127459A JP 2009127459 A JP2009127459 A JP 2009127459A JP 5004036 B2 JP5004036 B2 JP 5004036B2
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- 238000002485 combustion reaction Methods 0.000 title claims description 51
- 238000000746 purification Methods 0.000 title claims description 14
- 239000013618 particulate matter Substances 0.000 claims description 73
- 238000011069 regeneration method Methods 0.000 claims description 31
- 230000008929 regeneration Effects 0.000 claims description 30
- 238000009825 accumulation Methods 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000012937 correction Methods 0.000 claims description 12
- 230000003134 recirculating effect Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 43
- 230000008021 deposition Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- 238000013021 overheating Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000000779 smoke Substances 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
- 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
- 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
-
- 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
- F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
-
- 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
-
- 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
-
- 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
- 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
- F01N2560/14—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics having more than one sensor of one kind
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/0601—Parameters used for exhaust control or diagnosing being estimated
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1606—Particle filter loading or soot amount
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- 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)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
V(m3 /sec)
=[G(g/sec)/28.8(g/mol)]
×22.4×10−3(m3 /mol)
×[T(K)/273(K)]
×[101.3(kPa)/(P0(kPa)+Pmuf(kPa)+ΔP(kPa))]
+[Q(cc/sec)/207.3(g/mol)]
×0.84(g/cc)×6.75(mol)
×22.4×10−3(m3 /mol)
×[T(K)/273(K)]
×[101.3(kPa)/(P0(kPa)+Pmuf(kPa)+ΔP(kPa))] (E1)
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)
5 EGR管(還流通路)
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)
20 インジェクタ
21 エンジン回転数センサ
30 エアフロメータ
32、40 温度センサ
33 圧力センサ
40 排気温度センサ
62、70 差圧センサ
63 流量センサ(計測手段)
Claims (9)
- 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、
前記フィルタの下流から前記内燃機関の上流へ排気を還流する還流通路と、
前記フィルタに流入する排気流量を、吸気量と前記還流通路を還流する排気還流量との加算値である全排気流量として算出する算出手段と、
前記算出手段によって算出された前記排気流量と、前記フィルタの上流側と下流側の圧力差である前後差圧とから、前記フィルタにおける粒子状物質の堆積量を推定する推定手段と、
前記排気還流量を取得する取得手段と、
前記取得手段により取得された排気還流量が所定値未満の場合に、前記推定手段による堆積量の推定値に基づいて、前記フィルタに堆積された粒子状物質を燃焼させる再生の要否を判定する第1判定手段と、
前記内燃機関の回転数と、前記内燃機関の負荷相当量と、前記フィルタの温度とを用いて、前記フィルタにおける粒子状物質の堆積量を推定する副推定手段と、
前記取得手段により取得された排気還流量が前記所定値以上の場合に、前記副推定手段による推定値に基づいて前記フィルタの再生の要否を判定する第2判定手段と、
を備えたことを特徴とする内燃機関の排気浄化装置。 - 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、
前記フィルタの下流から前記内燃機関の上流へ排気を還流する還流通路と、
前記フィルタに流入する排気流量を、吸気量と前記還流通路を還流する排気還流量との加算値である全排気流量として算出する算出手段と、
前記算出手段によって算出された前記排気流量と、前記フィルタの上流側と下流側の圧力差である前後差圧とから、前記フィルタにおける粒子状物質の堆積量を推定する推定手段と、
前記排気還流量が大きい程、前記推定手段による堆積量を増加側に補正する補正手段と、
を備えたことを特徴とする内燃機関の排気浄化装置。 - 前記算出手段が算出する前記全排気流量は体積流量であり、前記算出手段は、前記内燃機関の位置で質量流量を取得し、その質量流量から前記フィルタの位置で前記体積流量を算出する請求項1又は2に記載の内燃機関の排気浄化装置。
- 前記算出手段は、前記フィルタに流入する前記全排気流量を、前記内燃機関での燃料噴射量による増加分を含めて算出する請求項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。
- 前記算出手段は、前記全排気流量を、吸気側マニホールド圧力、吸気側マニホールド温度、前記内燃機関の回転数、吸気量のうち少なくとも1つを用いて算出する請求項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。
- 前記算出手段は、前記全排気流量を、前記内燃機関の回転数と負荷相当量とを用いて算出する請求項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。
- 前記算出手段は、前記全排気流量を、前記還流通路の温度と前記還流通路での圧力損失とを用いて算出する請求項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。
- 前記還流通路を還流する排気還流量を計測する計測手段を備え、
前記算出手段は、前記全排気流量を、前記計測手段による計測値を用いて算出する請求項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。 - 前記第2判定手段は、前記排気還流量が所定値以上となった時点での前記推定手段による推定値を初期値として、前記副推定手段による推定値を積算することにより前記推定値を取得する請求項1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 |
---|---|---|---|
JP2009127459A JP5004036B2 (ja) | 2009-05-27 | 2009-05-27 | 内燃機関の排気浄化装置 |
DE102010029325.3A DE102010029325B4 (de) | 2009-05-27 | 2010-05-26 | Abgasemissionssteuerungsvorrichtung für eine Brennkraftmaschine |
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JP2009127459A JP5004036B2 (ja) | 2009-05-27 | 2009-05-27 | 内燃機関の排気浄化装置 |
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JP2010275891A JP2010275891A (ja) | 2010-12-09 |
JP5004036B2 true JP5004036B2 (ja) | 2012-08-22 |
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JP2009127459A Expired - Fee Related JP5004036B2 (ja) | 2009-05-27 | 2009-05-27 | 内燃機関の排気浄化装置 |
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JP (1) | JP5004036B2 (ja) |
DE (1) | DE102010029325B4 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104258638A (zh) * | 2014-09-30 | 2015-01-07 | 东莞市高朗实业有限公司 | 一种电动送风空气过滤器、电焊变光护目镜及其控制器 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013148045A (ja) * | 2012-01-20 | 2013-08-01 | Mitsubishi Heavy Ind Ltd | エンジンの排気浄化システム |
CN110630354B (zh) * | 2019-09-30 | 2020-12-22 | 潍柴动力股份有限公司 | 一种dpf控制方法及装置 |
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JP2003222043A (ja) * | 2002-01-30 | 2003-08-08 | Mazda Motor Corp | エンジンの制御装置 |
JP4042476B2 (ja) | 2002-06-14 | 2008-02-06 | 株式会社デンソー | 内燃機関の排気ガス浄化装置 |
JP3918649B2 (ja) * | 2002-06-14 | 2007-05-23 | 株式会社デンソー | 内燃機関の排気ガス浄化装置 |
JP3868336B2 (ja) | 2002-06-17 | 2007-01-17 | 株式会社竹中工務店 | 成形床板支持部材、及び、段差付き床形成方法 |
JP4513593B2 (ja) | 2005-02-15 | 2010-07-28 | 株式会社デンソー | 内燃機関の排気ガス浄化装置 |
JP4415963B2 (ja) | 2006-03-17 | 2010-02-17 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP4853297B2 (ja) * | 2007-01-16 | 2012-01-11 | トヨタ自動車株式会社 | 内燃機関の排気システム |
JP2008286071A (ja) * | 2007-05-16 | 2008-11-27 | Toyota Motor Corp | 車両およびその制御方法 |
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- 2009-05-27 JP JP2009127459A patent/JP5004036B2/ja not_active Expired - Fee Related
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CN104258638A (zh) * | 2014-09-30 | 2015-01-07 | 东莞市高朗实业有限公司 | 一种电动送风空气过滤器、电焊变光护目镜及其控制器 |
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DE102010029325B4 (de) | 2022-05-05 |
JP2010275891A (ja) | 2010-12-09 |
DE102010029325A1 (de) | 2010-12-02 |
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