KR101088316B1 - ＮＯｘ 센서의 고장 진단 장치 및 고장 진단 방법 - Google Patents

ＮＯｘ 센서의 고장 진단 장치 및 고장 진단 방법 Download PDF

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KR101088316B1
KR101088316B1 KR1020097011362A KR20097011362A KR101088316B1 KR 101088316 B1 KR101088316 B1 KR 101088316B1 KR 1020097011362 A KR1020097011362 A KR 1020097011362A KR 20097011362 A KR20097011362 A KR 20097011362A KR 101088316 B1 KR101088316 B1 KR 101088316B1
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sensor
value
pattern
flow rate
concentration
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KR20090079973A (ko
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에이치 키타자와
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봇슈 가부시키가이샤
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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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • F02D41/14—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
    • F02D41/146—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 NOx content or concentration
    • 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
    • F02D41/14—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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1461—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 NOx content or concentration of the exhaust gases emitted by the engine
    • 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
    • F02D41/14—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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1461—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 NOx content or concentration of the exhaust gases emitted by the engine
    • F02D41/1462—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 NOx content or concentration of the exhaust gases emitted by the engine with determination means using an estimation
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas 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
    • 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
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
KR1020097011362A 2007-02-02 2008-01-25 ＮＯｘ 센서의 고장 진단 장치 및 고장 진단 방법 Active KR101088316B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007024213A JP4297379B2 (ja) 2007-02-02 2007-02-02 Ｎｏｘセンサの故障診断装置及び故障診断方法
JPJP-P-2007-024213 2007-02-02
PCT/JP2008/051059 WO2008093607A1 (ja) 2007-02-02 2008-01-25 Ｎｏxセンサの故障診断装置及び故障診断方法

Publications (2)

Publication Number Publication Date
KR20090079973A KR20090079973A (ko) 2009-07-22
KR101088316B1 true KR101088316B1 (ko) 2011-12-01

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Country Status (7)

Country Link
US (1) US8359826B2 (enExample)
EP (1) EP2128396B1 (enExample)
JP (1) JP4297379B2 (enExample)
KR (1) KR101088316B1 (enExample)
CN (1) CN101600863B (enExample)
AT (1) ATE521796T1 (enExample)
WO (1) WO2008093607A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664089B2 (en) 2014-12-03 2017-05-30 Hyundai Motor Company Fault diagnosis method of SCR system and an apparatus thereof

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007006489B4 (de) * 2007-02-09 2018-10-04 Robert Bosch Gmbh Verfahren zur Diagnose eines in einem Abgasbereich einer Brennkraftmaschine angeordneten Abgassensors und Vorrichtung zur Durchführung des Verfahrens
JP5152912B2 (ja) * 2008-06-27 2013-02-27 ボッシュ株式会社 タンク内センサの合理性診断方法及び合理性診断装置
JP2010101860A (ja) * 2008-10-27 2010-05-06 Mitsubishi Motors Corp 車両に搭載された機構の故障診断装置
WO2010109946A1 (ja) * 2009-03-23 2010-09-30 ボッシュ株式会社 Ｎｏxセンサの合理性診断装置及び合理性診断方法
JP4874364B2 (ja) * 2009-04-14 2012-02-15 株式会社日本自動車部品総合研究所 内燃機関の排気浄化装置
US9354618B2 (en) 2009-05-08 2016-05-31 Gas Turbine Efficiency Sweden Ab Automated tuning of multiple fuel gas turbine combustion systems
US8437941B2 (en) * 2009-05-08 2013-05-07 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US9267443B2 (en) 2009-05-08 2016-02-23 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US9671797B2 (en) 2009-05-08 2017-06-06 Gas Turbine Efficiency Sweden Ab Optimization of gas turbine combustion systems low load performance on simple cycle and heat recovery steam generator applications
WO2010134167A1 (ja) * 2009-05-19 2010-11-25 トヨタ自動車株式会社 ＮＯｘセンサの異常診断装置
DE112010002699B4 (de) * 2009-06-24 2023-11-09 Cummins Ip, Inc. Vorrichtung, System und Verfahren zur Abschätzung der Verschlechterung des Ansprechverhaltens elnes NOx-Sensors
EP2635888B1 (en) * 2009-12-16 2017-05-31 Cummins Filtration IP, Inc. Apparatus and method to diagnose a nox sensor
JP5789925B2 (ja) * 2010-07-08 2015-10-07 いすゞ自動車株式会社 ＮＯｘセンサ診断装置及びＳＣＲシステム
US9121323B2 (en) * 2011-04-15 2015-09-01 GM Global Technology Operations LLC Nitrogen oxide sensor stuck-in-range diagnostic tool
JP5915111B2 (ja) * 2011-11-18 2016-05-11 いすゞ自動車株式会社 ＮＯｘセンサの異常診断方法、ＮＯｘセンサの異常診断システム、及び内燃機関のＮＯｘ排出濃度推定方法
US8924130B2 (en) * 2012-03-01 2014-12-30 Ford Global Technologies, Llc Non-intrusive exhaust gas sensor monitoring
JP5559230B2 (ja) * 2012-04-03 2014-07-23 本田技研工業株式会社 内燃機関の排気浄化システム
US9677488B2 (en) 2012-04-10 2017-06-13 Volvo Lastvagnar Ab Self-diagnosing method for diagnosing a SCR system
US8910466B2 (en) * 2012-05-09 2014-12-16 GM Global Technology Operations LLC Exhaust aftertreatment system with diagnostic delay
US9528462B2 (en) * 2012-06-15 2016-12-27 GM Global Technology Operations LLC NOx sensor plausibility monitor
DE112014001022B4 (de) * 2013-02-27 2021-07-29 Cummins Ip, Inc. Vorrichtung, Verfahren und System zur Diagnose der Leistung von Reduktionsmittelabgabe
SE537270C2 (sv) * 2013-07-02 2015-03-24 Scania Cv Ab Anordning och förfarande för detektering av defekt NOx-givare
US10109118B2 (en) 2013-10-04 2018-10-23 Volvo Truck Corporation Method for monitoring the operation of a sensor
CN103903412B (zh) * 2014-03-28 2017-04-12 哈尔滨工程大学 一种用于NOx传感器的CAN总线转4‑20mA的数据信号转换装置
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
NL2015086B1 (en) * 2015-07-03 2017-01-30 Daf Trucks Nv Method, apparatus, and system for diagnosing at least one NOx-sensor of a diesel engine system.
US10995647B2 (en) 2015-11-20 2021-05-04 Cummins, Inc. Systems and methods for using oxygen to diagnose in-range rationality for NOx sensors
DE102016202765A1 (de) * 2016-02-23 2017-08-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Schaltkreisanordnung und Verfahren zum Herstellen einer Schaltkreisanordnung
CN107462670A (zh) * 2016-06-03 2017-12-12 大陆汽车电子(长春)有限公司 氮氧化物传感器故障检测方法
JP6569604B2 (ja) 2016-06-10 2019-09-04 株式会社デンソー 噴射制御装置
CN107035490B (zh) * 2017-03-29 2019-04-12 北京航空航天大学 一种柴油机scr系统氮氧化物输入传感器故障诊断方法
CN107023367B (zh) * 2017-03-29 2019-04-12 北京航空航天大学 一种柴油机scr系统氨气输入传感器故障诊断和容错控制方法
CN108150262B (zh) * 2017-12-22 2020-05-22 中国第一汽车股份有限公司 判断氮氧传感器是否失效的检测方法
US10690078B2 (en) * 2018-04-25 2020-06-23 International Engine Intellectual Property Company, Llc System and method for estimating engine exhaust nitrogen oxide sensor instability
CN108825344B (zh) * 2018-06-08 2020-12-15 无锡威孚力达催化净化器有限责任公司 一种NOx传感器测量值合理性判断方法及装置
JP2020060120A (ja) * 2018-10-09 2020-04-16 日本碍子株式会社 触媒の劣化診断装置及び触媒の劣化診断方法
US12044155B2 (en) * 2020-05-29 2024-07-23 Cummins Inc. Systems and methods for diagnosing NOx sensor based on ammonia slip
US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods
US11636870B2 (en) 2020-08-20 2023-04-25 Denso International America, Inc. Smoking cessation systems and methods
US11881093B2 (en) 2020-08-20 2024-01-23 Denso International America, Inc. Systems and methods for identifying smoking in vehicles
US11828210B2 (en) 2020-08-20 2023-11-28 Denso International America, Inc. Diagnostic systems and methods of vehicles using olfaction
US12377711B2 (en) 2020-08-20 2025-08-05 Denso International America, Inc. Vehicle feature control systems and methods based on smoking
US12251991B2 (en) 2020-08-20 2025-03-18 Denso International America, Inc. Humidity control for olfaction sensors
US12269315B2 (en) 2020-08-20 2025-04-08 Denso International America, Inc. Systems and methods for measuring and managing odor brought into rental vehicles
US11932080B2 (en) 2020-08-20 2024-03-19 Denso International America, Inc. Diagnostic and recirculation control systems and methods
US12017506B2 (en) 2020-08-20 2024-06-25 Denso International America, Inc. Passenger cabin air control systems and methods
US11760169B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Particulate control systems and methods for olfaction sensors
US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
CN112412599B (zh) * 2020-11-18 2022-04-05 潍柴动力股份有限公司 上游NOx传感器故障识别方法、装置、车辆及存储介质
CN112648055B (zh) * 2020-12-10 2022-01-21 潍柴动力股份有限公司 氮氧化物传感器的可信性检测方法、装置、设备及介质
US11959433B2 (en) * 2022-07-19 2024-04-16 Cummins Emission Solutions Inc. Systems and methods for determining exhibited useful life of sensors in monitored systems
CN119086815A (zh) * 2024-08-13 2024-12-06 东风汽车股份有限公司 SCR下游NOx传感器失效诊断方法
CN119616644B (zh) * 2024-12-18 2025-09-19 东风商用车有限公司 一种氮氧传感器故障诊断方法、装置、电子设备及介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003270194A (ja) * 2002-03-18 2003-09-25 Toyota Motor Corp ＮＯｘセンサの故障診断装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2827719B2 (ja) 1992-07-16 1998-11-25 三菱自動車工業株式会社 Ｏ２ センサの故障判定方法
JP2962089B2 (ja) 1993-03-15 1999-10-12 日産自動車株式会社 内燃機関の触媒劣化診断装置
JP2554836B2 (ja) * 1993-12-24 1996-11-20 株式会社東芝 脱硝制御装置
JP3134698B2 (ja) 1995-02-10 2001-02-13 三菱自動車工業株式会社 空燃比センサの劣化診断装置
DE10049685A1 (de) 2000-10-07 2002-04-11 Volkswagen Ag Verfahren und Vorrichtung zur Eigendiagnose eines NOX-Sensors
DE10062289A1 (de) 2000-12-14 2002-07-04 Siemens Ag Verfahren zur Diagnose eines NOx-Sensors im Abgastrakt einer Brennkraftmaschine
US6453663B1 (en) * 2001-08-16 2002-09-24 Ford Global Technologies, Inc NOx sensor monitoring
JP3927395B2 (ja) * 2001-09-28 2007-06-06 株式会社日立製作所 圧縮着火エンジンの制御装置
JP4273306B2 (ja) 2003-03-05 2009-06-03 三菱ふそうトラック・バス株式会社 ＮＯｘセンサの異常判定装置
JP4232524B2 (ja) * 2003-04-25 2009-03-04 株式会社日立製作所 エンジンの制御装置
US6823843B1 (en) * 2004-01-13 2004-11-30 Ford Global Technologies, Llc System and method to minimize the amount of NOx released from a NOx trap
DE102004048136A1 (de) * 2004-10-02 2006-04-06 Robert Bosch Gmbh Verfahren zur Diagnose eines in einem Abgasbereich einer Brennkraftmaschine angeordneten NOx-Sensors und Vorrichtung zur Durchführung des Verfahrens
US7178328B2 (en) * 2004-12-20 2007-02-20 General Motors Corporation System for controlling the urea supply to SCR catalysts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003270194A (ja) * 2002-03-18 2003-09-25 Toyota Motor Corp ＮＯｘセンサの故障診断装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664089B2 (en) 2014-12-03 2017-05-30 Hyundai Motor Company Fault diagnosis method of SCR system and an apparatus thereof

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US8359826B2 (en) 2013-01-29
KR20090079973A (ko) 2009-07-22
CN101600863A (zh) 2009-12-09
CN101600863B (zh) 2011-12-14
JP4297379B2 (ja) 2009-07-15
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