JP2006037771A - 排気浄化装置のNOx低減率測定方法 - Google Patents
排気浄化装置のNOx低減率測定方法 Download PDFInfo
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- JP2006037771A JP2006037771A JP2004215767A JP2004215767A JP2006037771A JP 2006037771 A JP2006037771 A JP 2006037771A JP 2004215767 A JP2004215767 A JP 2004215767A JP 2004215767 A JP2004215767 A JP 2004215767A JP 2006037771 A JP2006037771 A JP 2006037771A
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- nox
- exhaust
- nox reduction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9495—Controlling the catalytic process
-
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
-
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
-
- 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
- F01N3/18—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 characterised by methods of operation; Control
- F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- 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
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- Y02T10/12—Improving ICE efficiencies
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
【解決手段】ディーゼルエンジン1の排気経路5に組み込んだNOx還元触媒6の上流側へ添加ノズル7により尿素水Uを噴射し、排気Gに含まれているNOxの還元浄化を図る場合に、添加ノズル7よりも上流側のNOx濃度センサ9の計測値とNOx還元触媒6の下流側のNOx濃度センサ12の計測値の双方を、排気Gの流量及び排気温度に依存した一次応答モデルを用いて補正したうえ、これらのNOx濃度補正値に基づきNOx低減率を求め、排気Gの流量が少ない場合の上流側NOx濃度センサ9の計測値に対する下流側NOx濃度センサ12計測値の時間的な遅れや、排気温度が低い場合のNOxの還元処理速度の低下に起因した誤差を更正する。
【選択図】図1
Description
上流側濃度補正値=上流側濃度計測値(m−x)(A+Bs)/(1+Cs)
下流側濃度補正値=下流側濃度計測値(n)(D+Es)/(1+Fs)
A,B,C,D,E,F,xは係数、sはラプラス演算子
係数A,B,C,D,E,F,xはいずれも実験により得たもので、C,Fは排気温度による反応速度成分、xは排気流量による時間遅れ成分である。
5 排気経路
6 NOx還元触媒
G 排気
U 尿素水(還元剤)
Claims (1)
- エンジン排気経路に組み込んであるNOx還元触媒の上流側へ還元剤を添加し、排気中のNOxの還元浄化を図る排気浄化装置のNOx低減率検出方法であって、還元剤の添加位置よりも上流側のNOx濃度計測値と触媒下流側のNOx濃度計測値を、排気流量及び排気温度に依存した一次応答モデルを用いて補正し、これらのNOx濃度補正値に基づきNOx低減率を求めることを特徴とする排気浄化装置のNOx低減率測定方法。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004215767A JP4267535B2 (ja) | 2004-07-23 | 2004-07-23 | 排気浄化装置のNOx低減率測定方法 |
| PCT/JP2005/013365 WO2006009196A1 (ja) | 2004-07-23 | 2005-07-21 | 排気浄化装置のNOx低減率測定方法 |
| US11/632,998 US7543443B2 (en) | 2004-07-23 | 2005-07-21 | Method for determining NOx reduction ratio in exhaust emission control device |
| KR1020077000774A KR20070032780A (ko) | 2004-07-23 | 2005-07-21 | 배기 정화 장치의 NOx 저감률 측정 방법 |
| EP05766446A EP1801376B1 (en) | 2004-07-23 | 2005-07-21 | METHOD OF MEASURING NOx REDUCTION RATE OF EXHAUST EMISSION CONTROL DEVICE |
| DE602005018088T DE602005018088D1 (de) | 2004-07-23 | 2005-07-21 | Verfahren zur messung der nox-reduktionsrate einer abgasentgiftungsvorrichtung |
| CNA200580024641XA CN1989321A (zh) | 2004-07-23 | 2005-07-21 | 排气净化装置的nox降低率测定方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004215767A JP4267535B2 (ja) | 2004-07-23 | 2004-07-23 | 排気浄化装置のNOx低減率測定方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006037771A true JP2006037771A (ja) | 2006-02-09 |
| JP4267535B2 JP4267535B2 (ja) | 2009-05-27 |
Family
ID=35785303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004215767A Expired - Fee Related JP4267535B2 (ja) | 2004-07-23 | 2004-07-23 | 排気浄化装置のNOx低減率測定方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7543443B2 (ja) |
| EP (1) | EP1801376B1 (ja) |
| JP (1) | JP4267535B2 (ja) |
| KR (1) | KR20070032780A (ja) |
| CN (1) | CN1989321A (ja) |
| DE (1) | DE602005018088D1 (ja) |
| WO (1) | WO2006009196A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010032641A1 (ja) * | 2008-09-18 | 2010-03-25 | トヨタ自動車株式会社 | 排気ガス浄化装置 |
| US20100107610A1 (en) * | 2006-03-02 | 2010-05-06 | Schuessler Martin | Exhaust System for an Internal Combustion Engine |
| KR100992816B1 (ko) | 2008-11-28 | 2010-11-08 | 현대자동차주식회사 | 디젤차량에서 후처리 시스템의 암모니아 저장량 보정장치 및 방법 |
| CN106948911A (zh) * | 2015-12-09 | 2017-07-14 | 罗伯特·博世有限公司 | 用于修正NOx浓度的模型值的方法 |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8555627B2 (en) * | 2005-07-19 | 2013-10-15 | Avl List Gmbh | Exhaust gas line of an internal combustion engine |
| DE102005042488A1 (de) * | 2005-09-07 | 2007-03-08 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens |
| KR100957138B1 (ko) * | 2007-07-09 | 2010-05-11 | 현대자동차주식회사 | 질소산화물 센서 고장 판단 방법 및 이를 수행하는 선택적환원 촉매 시스템 |
| JP4840703B2 (ja) * | 2007-11-16 | 2011-12-21 | トヨタ自動車株式会社 | 排気浄化システムの異常診断装置 |
| DE102008047860B3 (de) * | 2008-09-18 | 2009-12-24 | Continental Automotive Gmbh | Verfahren zur Dichtheitsprüfung eines Reagenzmittelinjektors |
| FR2945962B1 (fr) * | 2009-05-29 | 2012-06-08 | Peugeot Citroen Automobiles Sa | Dispositif, vehicule comportant ce dispositif et procede de traitement des gaz d'echappement |
| DE102009058089B4 (de) * | 2009-12-12 | 2016-09-22 | Bayerische Motoren Werke Aktiengesellschaft | Mess- und Regelungsverfahren sowie Vorrichtung für ein SCR- Abgasnachbehandlungssystem mit Bestimmung des linearen Zusammenhangs zweier mittels NOx-Sensoren bestimmter Signale |
| CN101798946B (zh) * | 2010-02-23 | 2012-12-26 | 中国人民解放军军事交通学院 | 一种柴油机尿素溶液添加装置与方法 |
| DE102010027970A1 (de) * | 2010-04-20 | 2011-10-20 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Verbrennungsmotors |
| GB2481433A (en) | 2010-06-24 | 2011-12-28 | Gm Global Tech Operations Inc | Determining NOx concentration upstream of an SCR catalyst |
| US8607548B2 (en) * | 2010-10-06 | 2013-12-17 | Avl North America, Inc. | SCR ammonia slip detection |
| DE102011008380B3 (de) * | 2011-01-12 | 2012-01-26 | Continental Automotive Gmbh | Abgaskatalysatorsystem und Verfahren zum Betreiben eines Abgaskatalysators |
| SE538378C2 (sv) * | 2012-05-03 | 2016-06-07 | Scania Cv Ab | Metod för detektering av svavelförgiftning i ett avgasefterbehandlingssystem |
| JP6230459B2 (ja) * | 2014-03-28 | 2017-11-15 | 日立造船株式会社 | エンジンのための脱硝率の測定方法および測定装置 |
| JP6252540B2 (ja) * | 2014-05-19 | 2017-12-27 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
| US9476341B2 (en) * | 2014-07-28 | 2016-10-25 | GM Global Technology Operations LLC | Exhaust treatment system that generates debounce duration for NOx sensor offset |
| KR101684135B1 (ko) * | 2015-06-26 | 2016-12-08 | 현대자동차주식회사 | Scr 시스템의 고장진단방법 |
| CN105179052A (zh) * | 2015-07-13 | 2015-12-23 | 南通亚泰工程技术有限公司 | 一种船用scr尿素溶液喷射系统和控制方法 |
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| CN114263521B (zh) * | 2021-12-31 | 2023-03-21 | 潍柴动力股份有限公司 | 一种传感器参数的修正方法及装置 |
| CN117685081B (zh) * | 2024-01-09 | 2025-11-21 | 潍柴动力股份有限公司 | 尿素喷射控制方法及装置、存储介质及电子设备 |
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| JP3140620B2 (ja) | 1993-09-13 | 2001-03-05 | 株式会社日立製作所 | ガスタービン設備の起動計画作成装置 |
| DE19736384A1 (de) | 1997-08-21 | 1999-02-25 | Man Nutzfahrzeuge Ag | Verfahren zur Dosierung eines Reduktionsmittels in stickoxidhaltiges Abgas einer Brennkraftmaschine |
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| JP3767157B2 (ja) * | 1998-03-13 | 2006-04-19 | 日産自動車株式会社 | ディーゼルエンジンの排気浄化装置 |
| JP3574889B2 (ja) * | 1998-03-25 | 2004-10-06 | 日立造船株式会社 | 脱硝装置のアンモニア注入量制御方法 |
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| JP2002161732A (ja) | 2000-11-30 | 2002-06-07 | Hino Motors Ltd | 排気浄化装置 |
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| JP3951774B2 (ja) * | 2002-03-29 | 2007-08-01 | 三菱ふそうトラック・バス株式会社 | 内燃機関のNОx浄化装置 |
-
2004
- 2004-07-23 JP JP2004215767A patent/JP4267535B2/ja not_active Expired - Fee Related
-
2005
- 2005-07-21 KR KR1020077000774A patent/KR20070032780A/ko not_active Withdrawn
- 2005-07-21 DE DE602005018088T patent/DE602005018088D1/de not_active Expired - Lifetime
- 2005-07-21 EP EP05766446A patent/EP1801376B1/en not_active Expired - Lifetime
- 2005-07-21 WO PCT/JP2005/013365 patent/WO2006009196A1/ja not_active Ceased
- 2005-07-21 US US11/632,998 patent/US7543443B2/en not_active Expired - Fee Related
- 2005-07-21 CN CNA200580024641XA patent/CN1989321A/zh active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100107610A1 (en) * | 2006-03-02 | 2010-05-06 | Schuessler Martin | Exhaust System for an Internal Combustion Engine |
| DE112007000322B4 (de) * | 2006-03-02 | 2019-04-18 | Avl List Gmbh | Abgassystem für eine Brennkraftmaschine |
| WO2010032641A1 (ja) * | 2008-09-18 | 2010-03-25 | トヨタ自動車株式会社 | 排気ガス浄化装置 |
| JP2010071192A (ja) * | 2008-09-18 | 2010-04-02 | Toyota Motor Corp | 排気ガス浄化装置 |
| KR100992816B1 (ko) | 2008-11-28 | 2010-11-08 | 현대자동차주식회사 | 디젤차량에서 후처리 시스템의 암모니아 저장량 보정장치 및 방법 |
| CN106948911A (zh) * | 2015-12-09 | 2017-07-14 | 罗伯特·博世有限公司 | 用于修正NOx浓度的模型值的方法 |
| CN106948911B (zh) * | 2015-12-09 | 2021-01-01 | 罗伯特·博世有限公司 | 用于修正NOx浓度的模型值的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1801376B1 (en) | 2009-12-02 |
| KR20070032780A (ko) | 2007-03-22 |
| US7543443B2 (en) | 2009-06-09 |
| CN1989321A (zh) | 2007-06-27 |
| EP1801376A1 (en) | 2007-06-27 |
| EP1801376A4 (en) | 2008-01-16 |
| JP4267535B2 (ja) | 2009-05-27 |
| DE602005018088D1 (de) | 2010-01-14 |
| US20070199307A1 (en) | 2007-08-30 |
| WO2006009196A1 (ja) | 2006-01-26 |
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