WO2008093616A1 - 排気浄化システムの故障診断装置及び排気浄化システムの故障診断方法 - Google Patents

排気浄化システムの故障診断装置及び排気浄化システムの故障診断方法 Download PDF

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Publication number
WO2008093616A1
WO2008093616A1 PCT/JP2008/051089 JP2008051089W WO2008093616A1 WO 2008093616 A1 WO2008093616 A1 WO 2008093616A1 JP 2008051089 W JP2008051089 W JP 2008051089W WO 2008093616 A1 WO2008093616 A1 WO 2008093616A1
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WO
WIPO (PCT)
Prior art keywords
nox
cleaning system
exhaust cleaning
breakdown
downstream
Prior art date
Application number
PCT/JP2008/051089
Other languages
English (en)
French (fr)
Inventor
Eiichi Kitazawa
Original Assignee
Bosch Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Corporation filed Critical Bosch Corporation
Priority to CN2008800015438A priority Critical patent/CN101578436B/zh
Priority to EP08710590A priority patent/EP2108793B1/en
Priority to US12/525,401 priority patent/US20100024394A1/en
Priority to DE602008001717T priority patent/DE602008001717D1/de
Priority to AT08710590T priority patent/ATE473358T1/de
Publication of WO2008093616A1 publication Critical patent/WO2008093616A1/ja

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Classifications

    • 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, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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, e.g. for catalytic activity
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration 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
    • 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 ; Methods of operation or control of catalytic converters
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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 ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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 ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • 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
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • 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
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0411—Methods of control or diagnosing using a feed-forward control
    • 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
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0418—Methods of control or diagnosing using integration or an accumulated value within an elapsed period
    • 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
    • F01N2900/1621—Catalyst conversion efficiency
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

　排気浄化システムの制御系の異常や触媒劣化等の排気浄化システムの故障の有無を精度良く判定し、排気浄化システムの信頼性を向上させることができる排気浄化システムの故障診断装置及び故障診断方法を提供する。 　上流側ＮＯX流量演算手段と、下流側ＮＯX流量演算手段と、ＮＯXの還元が正常に行われるための少なくとも一つの条件を満たすか否かを判別するための還元条件判定手段と、条件を満たしていると判別されるときに上流側ＮＯX流量を積分し、所定時間内に触媒上流側を通過したＮＯX量を算出する上流側ＮＯX量演算手段と、条件を満たしていると判別されるときに下流側ＮＯX流量を積分し、所定時間に触媒下流側を通過したＮＯX量を算出する下流側ＮＯX量演算手段と、上流側ＮＯX量と下流側ＮＯX量とを比較することにより排気浄化システムが正常に動作しているか否かを判定する故障判定手段とを備える。
PCT/JP2008/051089 2007-02-02 2008-01-25 排気浄化システムの故障診断装置及び排気浄化システムの故障診断方法 WO2008093616A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN2008800015438A CN101578436B (zh) 2007-02-02 2008-01-25 排气净化系统的故障诊断装置及排气净化系统的故障诊断方法
EP08710590A EP2108793B1 (en) 2007-02-02 2008-01-25 Breakdown diagnosing device for exhaust cleaning system, and breakdown diagnosing method for exhaust cleaning system
US12/525,401 US20100024394A1 (en) 2007-02-02 2008-01-25 Trouble diagnosis device for exhaust gas purification system and trouble diagnosis method for exhaust gas purification system
DE602008001717T DE602008001717D1 (de) 2007-02-02 2008-01-25 Versagensdiagnosevorrichtung für abgasreinigungssystem und versagensdiagnoseverfahren für abgasreinigungssystem
AT08710590T ATE473358T1 (de) 2007-02-02 2008-01-25 Versagensdiagnosevorrichtung für abgasreinigungssystem und versagensdiagnoseverfahren für abgasreinigungssystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007024214A JP5121240B2 (ja) 2007-02-02 2007-02-02 排気浄化システムの故障診断装置及び排気浄化システムの故障診断方法
JP2007-024214 2007-02-02

Publications (1)

Publication Number Publication Date
WO2008093616A1 true WO2008093616A1 (ja) 2008-08-07

Family

ID=39673928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051089 WO2008093616A1 (ja) 2007-02-02 2008-01-25 排気浄化システムの故障診断装置及び排気浄化システムの故障診断方法

Country Status (8)

Country Link
US (1) US20100024394A1 (ja)
EP (1) EP2108793B1 (ja)
JP (1) JP5121240B2 (ja)
KR (1) KR101081766B1 (ja)
CN (1) CN101578436B (ja)
AT (1) ATE473358T1 (ja)
DE (1) DE602008001717D1 (ja)
WO (1) WO2008093616A1 (ja)

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CN102454457A (zh) * 2010-10-14 2012-05-16 福特环球技术公司 用于调节机动车辆排气系统中的贫NOx捕集器的方法
WO2012117183A1 (fr) 2011-03-02 2012-09-07 Peugeot Citroen Automobiles Sa Procede de diagnostic d'un catalyseur d'oxydation par mesure du taux d'oxydes d'azote en aval d'un organe de reduction catalytique selective
WO2014171878A1 (en) * 2013-02-13 2014-10-23 Scania Cv Ab Device and method for fault-tracing pertaining to an scr system

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JP4576464B2 (ja) * 2008-08-05 2010-11-10 本田技研工業株式会社 排ガス浄化装置の劣化判定装置
JP4737312B2 (ja) * 2009-03-10 2011-07-27 株式会社デンソー 排気浄化システムの異常診断装置及び排気浄化システム
FR2949353B1 (fr) * 2009-08-28 2012-08-31 Lab Sa Procede de determination et de suivi de l'activite d'un catalyseur de denitrification
DE102009055738A1 (de) * 2009-11-26 2011-06-09 Continental Automotive Gmbh Verfahren zur Bestimmung des Zustandes eines Reduktionsmittels in einem Reduktionsmitteltank
CN101737136A (zh) * 2009-12-08 2010-06-16 北汽福田汽车股份有限公司 检测显示装置及选择性催化还原系统
US8846754B2 (en) 2009-12-16 2014-09-30 Honeywell International Inc. Azeotrope-like compositions of cis-1,1,1,4,4,4-hexafluoro-2-butene
JP5462056B2 (ja) 2010-04-05 2014-04-02 ボッシュ株式会社 排気浄化システムの異常診断装置及び異常診断方法並びに排気浄化システム
FR2968715B1 (fr) * 2010-12-14 2015-10-02 Peugeot Citroen Automobiles Sa Procede de diagnostic d'un systeme de reduction catalytique selective pour un vehicule et vehicule correspondant
WO2012090555A1 (ja) * 2010-12-28 2012-07-05 ボッシュ株式会社 還元剤供給装置の異常診断装置及び還元剤供給装置
US8844267B2 (en) * 2011-03-17 2014-09-30 GM Global Technology Operations LLC Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor
US9594065B2 (en) * 2011-04-12 2017-03-14 Toyota Jidosha Kabushiki Kaisha Apparatus for detecting deterioration of NOx selective reduction catalyst
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RU2606468C1 (ru) 2012-12-13 2017-01-10 Тойота Дзидося Кабусики Кайся Устройство диагностики неисправностей устройства управления выхлопными газами
SE536950C2 (sv) * 2013-02-13 2014-11-11 Scania Cv Ab Anordning och förfarande för felsökning vid ett SCR-system
CN105283642B (zh) * 2013-06-10 2018-03-09 博世株式会社 控制装置、内燃机的排气净化装置及排气净化装置的控制方法
JP6248789B2 (ja) 2014-05-08 2017-12-20 いすゞ自動車株式会社 排気浄化システム
GB2527443A (en) * 2015-09-15 2015-12-23 Gm Global Tech Operations Inc Method of operating an aftertreatment system of an internal combustion engine
CN106194365B (zh) * 2016-08-30 2018-12-14 潍柴动力股份有限公司 一种基于模型的NOx排放监控方法
CN106321206B (zh) * 2016-08-30 2018-12-14 潍柴动力股份有限公司 一种实时在线计算的NOx排放监控方法
KR101865915B1 (ko) * 2016-12-07 2018-06-11 현대오트론 주식회사 Scr 시스템의 촉매 고장진단 및 부적합 요소수 판단 방법
JP6881230B2 (ja) * 2017-10-24 2021-06-02 株式会社デンソー 車両制御装置
JP7291477B2 (ja) 2018-04-09 2023-06-15 株式会社村田製作所 コイル部品
KR20220053319A (ko) 2020-10-22 2022-04-29 이정준 투각부를 형성한 세라믹 장식타일 및 그 제조방법
CN114753910B (zh) * 2022-04-07 2023-06-23 潍柴动力股份有限公司 Scr系统故障诊断方法、装置、电子设备及存储介质
CN115788639B (zh) * 2022-11-25 2024-05-17 广西玉柴机器股份有限公司 一种scr转化效率监控策略、装置及系统、判断方法

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