JP5585125B2 - 尿素品質診断システム - Google Patents
尿素品質診断システム Download PDFInfo
- Publication number
- JP5585125B2 JP5585125B2 JP2010042742A JP2010042742A JP5585125B2 JP 5585125 B2 JP5585125 B2 JP 5585125B2 JP 2010042742 A JP2010042742 A JP 2010042742A JP 2010042742 A JP2010042742 A JP 2010042742A JP 5585125 B2 JP5585125 B2 JP 5585125B2
- Authority
- JP
- Japan
- Prior art keywords
- urea
- concentration
- water
- urea water
- water level
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
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
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
- F01N2550/05—Systems for adding substances into 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or 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
- 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
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
- F01N2900/1806—Properties of reducing agent or dosing system
- F01N2900/1812—Flow rate
-
- 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
- F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
- F01N2900/1806—Properties of reducing agent or dosing system
- F01N2900/1818—Concentration of the reducing agent
-
- 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
Landscapes
- 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)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
11 SCR装置
12 噴射ノズル
15 尿素水
16 尿素タンク
20 DCU
23 濃度・水位センサ
Claims (2)
- 尿素タンク内の尿素水濃度と水位を検出し、水位が所定値以上のときに尿素水濃度の検出値により尿素水の品質の診断を行い、水位が所定値より低い場合は尿素水濃度に関わらず診断を行わないことを特徴とする尿素品質診断システム。
- 尿素水濃度の検出値が、上限尿素水濃度以上、又は下限尿素濃度以下のときに濃度異常と診断する請求項1記載の尿素品質診断システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010042742A JP5585125B2 (ja) | 2010-02-26 | 2010-02-26 | 尿素品質診断システム |
EP11747385.0A EP2541006A4 (en) | 2010-02-26 | 2011-02-23 | SYSTEM FOR UREA QUALITY DIAGNOSIS |
CN201180011282.XA CN102791976B (zh) | 2010-02-26 | 2011-02-23 | 尿素品质诊断*** |
PCT/JP2011/053981 WO2011105425A1 (ja) | 2010-02-26 | 2011-02-23 | 尿素品質診断システム |
US13/578,870 US9188042B2 (en) | 2010-02-26 | 2011-02-23 | Urea quality diagnosis system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010042742A JP5585125B2 (ja) | 2010-02-26 | 2010-02-26 | 尿素品質診断システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011179360A JP2011179360A (ja) | 2011-09-15 |
JP5585125B2 true JP5585125B2 (ja) | 2014-09-10 |
Family
ID=44506828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010042742A Expired - Fee Related JP5585125B2 (ja) | 2010-02-26 | 2010-02-26 | 尿素品質診断システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US9188042B2 (ja) |
EP (1) | EP2541006A4 (ja) |
JP (1) | JP5585125B2 (ja) |
CN (1) | CN102791976B (ja) |
WO (1) | WO2011105425A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE102012209240A1 (de) * | 2012-05-31 | 2013-12-05 | Robert Bosch Gmbh | Verfahren zur Plausibilisierung einer Messvorrichtung zur Ermittlung einer Qualität einer Harnstoffwasserlösung in einem Behälter eines SCR-Katalysatorsystems |
CN104508262B (zh) * | 2012-06-07 | 2018-08-07 | 康明斯有限公司 | Scr后处理***维护诱导方法 |
FR2997998B1 (fr) * | 2012-11-14 | 2018-07-27 | Inergy Automotive Systems Research (Societe Anonyme) | Methode et systeme pour le controle du fonctionnement d'un systeme de stockage et d'injection d'additif dans les gaz d'echappement d'un moteur. |
KR101416408B1 (ko) | 2012-12-31 | 2014-07-09 | 기아자동차 주식회사 | 요소 품질 센서의 고장 진단 방법 및 장치 |
US9708959B2 (en) | 2013-07-11 | 2017-07-18 | Ford Global Technologies, Llc | Filtering method for intermittent ultrasonic level sensors |
US9003778B2 (en) * | 2013-09-09 | 2015-04-14 | GM Global Technology Operations LLC | Exhaust fluid dosing control system and method |
KR102177356B1 (ko) * | 2014-09-30 | 2020-11-11 | 두산인프라코어 주식회사 | 요소수 농도에 따른 엔진 제어 장치 및 엔진 제어 방법 |
CN105804844A (zh) * | 2016-04-27 | 2016-07-27 | 合肥蓝海电子科技有限公司 | 一种集成尿素品质检测的尿素传感器 |
US11060429B2 (en) * | 2019-07-29 | 2021-07-13 | GM Global Technology Operations LLC | Diesel exhaust fluid quality based dosing adjustment, alerts, and inducement |
CN111058926B (zh) * | 2019-12-05 | 2021-02-23 | 潍柴动力股份有限公司 | 一种尿素浓度稳定性检测方法、装置和后处理器控制器 |
CN112196649B (zh) * | 2020-09-03 | 2022-02-18 | 东风商用车有限公司 | 一种尿素浓度异常预警***及方法 |
CN112922700A (zh) * | 2021-01-25 | 2021-06-08 | 凯龙高科技股份有限公司 | 一种scr***不良尿素检测装置及方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6063350A (en) * | 1997-04-02 | 2000-05-16 | Clean Diesel Technologies, Inc. | Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
JP2000027627A (ja) * | 1998-07-13 | 2000-01-25 | Hino Motors Ltd | 排気ガス浄化触媒用還元剤保温装置及びそれを組込んだ排気ガス浄化装置 |
JP2002371831A (ja) | 2001-06-13 | 2002-12-26 | Nissan Diesel Motor Co Ltd | 自動車の排ガス浄化装置 |
JP3751962B2 (ja) * | 2003-09-05 | 2006-03-08 | 日産ディーゼル工業株式会社 | エンジンの排気浄化装置 |
JP3686672B1 (ja) * | 2004-12-24 | 2005-08-24 | 日産ディーゼル工業株式会社 | エンジンの排気浄化装置 |
JP4782506B2 (ja) * | 2005-08-09 | 2011-09-28 | 日本特殊陶業株式会社 | 静電容量式センサ |
US7665347B2 (en) * | 2005-11-11 | 2010-02-23 | Ngk Spark Plug Co., Ltd. | Liquid state detecting apparatus |
JP2006090334A (ja) * | 2005-12-21 | 2006-04-06 | Nissan Diesel Motor Co Ltd | エンジンの排ガス浄化装置 |
JP4616184B2 (ja) * | 2006-01-31 | 2011-01-19 | 日本特殊陶業株式会社 | 液体状態検知センサ |
JP4799358B2 (ja) * | 2006-10-12 | 2011-10-26 | Udトラックス株式会社 | エンジンの排気浄化装置 |
US8482298B2 (en) * | 2006-12-18 | 2013-07-09 | Schrader Electronics Ltd. | Liquid level and composition sensing systems and methods using EMF wave propagation |
JP4925890B2 (ja) * | 2007-03-29 | 2012-05-09 | Udトラックス株式会社 | 液体還元剤判別装置及びエンジンの排気浄化装置 |
CN102037230B (zh) * | 2008-05-21 | 2014-01-22 | 丰田自动车株式会社 | NOx传感器的异常诊断装置及异常诊断方法 |
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 |
JP4557063B2 (ja) * | 2008-07-18 | 2010-10-06 | 株式会社デンソー | パティキュレートフィルタ再生装置及びその駆動方法 |
-
2010
- 2010-02-26 JP JP2010042742A patent/JP5585125B2/ja not_active Expired - Fee Related
-
2011
- 2011-02-23 WO PCT/JP2011/053981 patent/WO2011105425A1/ja active Application Filing
- 2011-02-23 EP EP11747385.0A patent/EP2541006A4/en not_active Withdrawn
- 2011-02-23 CN CN201180011282.XA patent/CN102791976B/zh active Active
- 2011-02-23 US US13/578,870 patent/US9188042B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2011179360A (ja) | 2011-09-15 |
CN102791976B (zh) | 2017-03-22 |
EP2541006A4 (en) | 2015-02-25 |
CN102791976A (zh) | 2012-11-21 |
US20120304744A1 (en) | 2012-12-06 |
WO2011105425A1 (ja) | 2011-09-01 |
EP2541006A1 (en) | 2013-01-02 |
US9188042B2 (en) | 2015-11-17 |
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