JP2012127302A - NOx浄化率低下原因診断装置 - Google Patents
NOx浄化率低下原因診断装置 Download PDFInfo
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- JP2012127302A JP2012127302A JP2010280889A JP2010280889A JP2012127302A JP 2012127302 A JP2012127302 A JP 2012127302A JP 2010280889 A JP2010280889 A JP 2010280889A JP 2010280889 A JP2010280889 A JP 2010280889A JP 2012127302 A JP2012127302 A JP 2012127302A
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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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
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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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
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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
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
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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
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
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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
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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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
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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
- F01N3/08—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
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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
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/02—Catalytic activity of catalytic converters
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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
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/03—Monitoring or diagnosing the deterioration of exhaust systems of sorbing activity of adsorbents or absorbents
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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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
- 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
- F01N2900/1631—Heat amount provided to exhaust apparatus
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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
- F01N3/08—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
- F01N3/2066—Selective catalytic reduction [SCR]
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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
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
【解決手段】NOx浄化率の低下時に診断用に排気管燃料噴射を実施させる診断用排気管燃料噴射制御部2と、排気管燃料噴射実施時に酸化触媒装置での実測発熱量と理論発熱量との誤差が閾値以内であれば、NOx浄化率低下の原因はNOx浄化装置故障と特定するNOx浄化装置故障特定部5と、排気管燃料噴射実施時に酸化触媒装置での実測発熱量と理論発熱量との誤差が閾値を超えていれば、NOx浄化率低下の原因は酸化触媒装置故障と特定する酸化触媒装置故障特定部6を備える。
【選択図】図1
Description
NOx浄化率=(1−触媒後NOx濃度/エンジン出口NOx濃度)
×100 (%)
により演算される。エンジン出口NOx濃度は、第一NOxセンサ221を使用せずに、エンジンパラメータを用いた公知の理論式あるいはマップから推定してもよい。
瞬時の触媒発熱量=DOC出入口温度差×排気ガス流量×排気ガス比熱
により瞬時の触媒発熱量が演算される。一方、瞬時の理論発熱量は、燃料である軽油の低位発熱量(例えば、38.2MJ/L)と燃料消費量とから演算され、こちらも積算される。
瞬時の理論発熱量=軽油の低位発熱量×燃料消費量
2 診断用排気管燃料噴射制御部
3 エンジン側故障特定部
4 排気管燃料噴射器故障特定部
5 NOx浄化装置故障特定部
6 酸化触媒装置故障特定部
7 複合故障特定部
Claims (1)
- 排気管燃料噴射器と酸化触媒装置とNOx浄化装置とを有するエンジンシステムに適用されるNOx浄化率低下原因診断装置であって、
NOx浄化率の低下時に診断用に排気管燃料噴射を実施させる診断用排気管燃料噴射制御部と、
前記排気管燃料噴射実施時に前記酸化触媒装置での実測発熱量と理論発熱量との誤差が閾値以内であれば、NOx浄化率低下の原因はNOx浄化装置故障と特定するNOx浄化装置故障特定部と、
前記排気管燃料噴射実施時に前記酸化触媒装置での実測発熱量と理論発熱量との誤差が閾値を超えていれば、NOx浄化率低下の原因は酸化触媒装置と特定する酸化触媒装置故障特定部とを備えたことを特徴とするNOx浄化率低下原因診断装置。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010280889A JP5760423B2 (ja) | 2010-12-16 | 2010-12-16 | NOx浄化率低下原因診断装置 |
| EP11848567.1A EP2653684B1 (en) | 2010-12-16 | 2011-12-07 | DEVICE FOR DIAGNOSING CAUSES OF DECREASES IN NOx CONVERSION EFFICIENCY |
| US13/994,493 US8973431B2 (en) | 2010-12-16 | 2011-12-07 | Apparatus for diagnosing causes of NOx conversion efficiency degradation |
| PCT/JP2011/078284 WO2012081464A1 (ja) | 2010-12-16 | 2011-12-07 | NOx浄化率低下原因診断装置 |
| AU2011342305A AU2011342305B2 (en) | 2010-12-16 | 2011-12-07 | Device for diagnosing causes of decreases in NOx conversion efficiency |
| CN201180059961.4A CN103261609B (zh) | 2010-12-16 | 2011-12-07 | NOx净化率降低原因诊断装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010280889A JP5760423B2 (ja) | 2010-12-16 | 2010-12-16 | NOx浄化率低下原因診断装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012127302A true JP2012127302A (ja) | 2012-07-05 |
| JP5760423B2 JP5760423B2 (ja) | 2015-08-12 |
Family
ID=46244571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010280889A Expired - Fee Related JP5760423B2 (ja) | 2010-12-16 | 2010-12-16 | NOx浄化率低下原因診断装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8973431B2 (ja) |
| EP (1) | EP2653684B1 (ja) |
| JP (1) | JP5760423B2 (ja) |
| CN (1) | CN103261609B (ja) |
| AU (1) | AU2011342305B2 (ja) |
| WO (1) | WO2012081464A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110047977A1 (en) * | 2009-08-21 | 2011-03-03 | Hyundai Motor Company | Exhaust device for diesel vehicle |
| WO2015005339A1 (ja) * | 2013-07-10 | 2015-01-15 | 日野自動車株式会社 | アフターターボキャタリストの異常検知方法 |
| WO2021241706A1 (ja) * | 2020-05-29 | 2021-12-02 | いすゞ自動車株式会社 | 触媒状態検知装置 |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5360307B2 (ja) * | 2010-11-02 | 2013-12-04 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
| EP2682576A4 (en) * | 2011-03-03 | 2015-04-08 | Toyota Motor Co Ltd | SYSTEM FOR DETERMINING CATALYST WEAR |
| AT512760B1 (de) * | 2012-03-21 | 2014-05-15 | Avl List Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
| US9084966B2 (en) * | 2012-11-29 | 2015-07-21 | GM Global Technology Operations LLC | Diesel oxidation catalyst aging level determination using NOX sensor NO2 interference |
| US9708960B2 (en) * | 2013-05-08 | 2017-07-18 | Cummins Ip, Inc. | Exhaust aftertreatment system diagnostic and conditioning |
| US9068495B2 (en) * | 2013-09-12 | 2015-06-30 | GM Global Technology Operations LLC | Oxidation catalyst/hydrocarbon injector testing system |
| US9752488B2 (en) * | 2015-10-27 | 2017-09-05 | Cummins, Inc. | Systems and methods of an on-board NOx monitor reset test |
| US10208696B2 (en) * | 2016-10-21 | 2019-02-19 | GM Global Technology Operations LLC | Multivariable engine torque and emission closed-loop control for internal combustion engine |
| DE102017124757A1 (de) * | 2017-10-23 | 2017-12-28 | FEV Europe GmbH | Abgasbehandlungssystem für ein kraftfahrzeug |
| DE112017008280T5 (de) * | 2017-12-18 | 2020-09-10 | Cummins Emission Solutions Inc. | Dezidierte Wärmeverwaltung für ein SCR-System |
| CN108930578B (zh) * | 2018-06-27 | 2020-09-29 | 潍柴动力股份有限公司 | Doc中毒的检测和保护方法 |
| CN112557040B (zh) * | 2020-11-16 | 2022-03-15 | 东风汽车集团有限公司 | 发动机瞬态soot排放量预估方法 |
| DE102021200701A1 (de) * | 2021-01-27 | 2022-07-28 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren und Vorrichtung zur Diagnose eines Katalysators mit einem elektrischen Heizer |
| GB2619856B (en) * | 2021-03-26 | 2025-03-26 | Cummins Power Generation Inc | Dual leg aftertreatment system |
| CN114991921B (zh) * | 2022-05-25 | 2024-01-09 | 深圳市众卡汽车零部件有限公司 | 一种scr效率低故障原因排查方法 |
| US11815044B1 (en) | 2022-06-09 | 2023-11-14 | Cummins Inc. | Systems and methods for selective catalytic reduction (SCR) multipoint diagnosis |
| KR20260048751A (ko) * | 2024-10-04 | 2026-04-13 | 현대자동차주식회사 | 오토 인코더를 이용한 배출 가스의 증가 원인 진단 장치, 방법 및 차량 |
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| JP2005201143A (ja) * | 2004-01-15 | 2005-07-28 | Honda Motor Co Ltd | 排気浄化装置の劣化判定装置 |
| JP2005351153A (ja) * | 2004-06-10 | 2005-12-22 | Toyota Motor Corp | 触媒劣化判定装置 |
| JP2006291742A (ja) * | 2005-04-06 | 2006-10-26 | Toyota Motor Corp | 内燃機関の触媒劣化検出装置 |
| JP2009085079A (ja) * | 2007-09-28 | 2009-04-23 | Toyota Motor Corp | 内燃機関の触媒劣化検出装置 |
| JP2010163923A (ja) * | 2009-01-14 | 2010-07-29 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
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| DE10237382A1 (de) * | 2002-08-12 | 2004-03-04 | Volkswagen Ag | Verfahren zum Betrieb eines magerlauffähigen Verbrennungsmotors mit einem Abgasreinigungssystem |
| US6925796B2 (en) * | 2003-11-19 | 2005-08-09 | Ford Global Technologies, Llc | Diagnosis of a urea SCR catalytic system |
| US20070044456A1 (en) * | 2005-09-01 | 2007-03-01 | Devesh Upadhyay | Exhaust gas aftertreatment systems |
| US7418816B2 (en) * | 2005-09-01 | 2008-09-02 | Ford Global Technologies, Llc | Exhaust gas aftertreatment systems |
| JP2008075610A (ja) | 2006-09-23 | 2008-04-03 | Hino Motors Ltd | 排気処理装置 |
| US8245567B2 (en) * | 2008-08-19 | 2012-08-21 | GM Global Technology Operations LLC | On board diagnostic monitor of NOx conversion efficiency for aftertreatment device |
| US8201444B2 (en) * | 2008-08-19 | 2012-06-19 | GM Global Technology Operations LLC | Aftertreatment device NOx conversion efficiency diagnostics using on board adaptive diagnostic algorithm |
| US8539757B2 (en) * | 2009-01-16 | 2013-09-24 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification apparatus for internal combustion engine |
| US8091416B2 (en) * | 2009-01-16 | 2012-01-10 | GM Global Technology Operations LLC | Robust design of diagnostic enabling conditions for SCR NOx conversion efficiency monitor |
| JP2010196496A (ja) | 2009-02-23 | 2010-09-09 | Toyota Motor Corp | 排気浄化装置 |
| US8726723B2 (en) * | 2010-02-23 | 2014-05-20 | Cummins Emission Solutions | Detection of aftertreatment catalyst degradation |
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2010
- 2010-12-16 JP JP2010280889A patent/JP5760423B2/ja not_active Expired - Fee Related
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2011
- 2011-12-07 US US13/994,493 patent/US8973431B2/en active Active
- 2011-12-07 WO PCT/JP2011/078284 patent/WO2012081464A1/ja not_active Ceased
- 2011-12-07 EP EP11848567.1A patent/EP2653684B1/en not_active Not-in-force
- 2011-12-07 CN CN201180059961.4A patent/CN103261609B/zh active Active
- 2011-12-07 AU AU2011342305A patent/AU2011342305B2/en not_active Ceased
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| JP2005201143A (ja) * | 2004-01-15 | 2005-07-28 | Honda Motor Co Ltd | 排気浄化装置の劣化判定装置 |
| JP2005351153A (ja) * | 2004-06-10 | 2005-12-22 | Toyota Motor Corp | 触媒劣化判定装置 |
| JP2006291742A (ja) * | 2005-04-06 | 2006-10-26 | Toyota Motor Corp | 内燃機関の触媒劣化検出装置 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110047977A1 (en) * | 2009-08-21 | 2011-03-03 | Hyundai Motor Company | Exhaust device for diesel vehicle |
| US8601797B2 (en) * | 2009-08-21 | 2013-12-10 | Hyundai Motor Company | Exhaust device for diesel vehicle |
| WO2015005339A1 (ja) * | 2013-07-10 | 2015-01-15 | 日野自動車株式会社 | アフターターボキャタリストの異常検知方法 |
| JP2015017527A (ja) * | 2013-07-10 | 2015-01-29 | 日野自動車株式会社 | アフターターボキャタリストの異常検知方法 |
| US10054028B2 (en) | 2013-07-10 | 2018-08-21 | Hino Motors, Ltd. | Abnormality detection method for after turbo catalyst |
| WO2021241706A1 (ja) * | 2020-05-29 | 2021-12-02 | いすゞ自動車株式会社 | 触媒状態検知装置 |
| JP2021188556A (ja) * | 2020-05-29 | 2021-12-13 | いすゞ自動車株式会社 | 触媒状態検知装置 |
| CN115605674A (zh) * | 2020-05-29 | 2023-01-13 | 五十铃自动车株式会社(Jp) | 催化剂状态检测装置 |
| JP7310720B2 (ja) | 2020-05-29 | 2023-07-19 | いすゞ自動車株式会社 | 触媒状態検知装置 |
| CN115605674B (zh) * | 2020-05-29 | 2025-06-10 | 五十铃自动车株式会社 | 催化剂状态检测装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US8973431B2 (en) | 2015-03-10 |
| JP5760423B2 (ja) | 2015-08-12 |
| EP2653684A4 (en) | 2016-11-09 |
| CN103261609A (zh) | 2013-08-21 |
| AU2011342305A1 (en) | 2013-07-18 |
| US20130306171A1 (en) | 2013-11-21 |
| AU2011342305B2 (en) | 2016-02-25 |
| EP2653684B1 (en) | 2018-05-30 |
| CN103261609B (zh) | 2015-04-29 |
| WO2012081464A1 (ja) | 2012-06-21 |
| EP2653684A1 (en) | 2013-10-23 |
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