JP6127510B2 - 尿素scr用尿素水消費量診断装置 - Google Patents
尿素scr用尿素水消費量診断装置 Download PDFInfo
- Publication number
- JP6127510B2 JP6127510B2 JP2012288067A JP2012288067A JP6127510B2 JP 6127510 B2 JP6127510 B2 JP 6127510B2 JP 2012288067 A JP2012288067 A JP 2012288067A JP 2012288067 A JP2012288067 A JP 2012288067A JP 6127510 B2 JP6127510 B2 JP 6127510B2
- Authority
- JP
- Japan
- Prior art keywords
- urea water
- amount
- injection amount
- urea
- consumption
- 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
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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
- 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
- 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
- F01N2550/02—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
- 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
- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/148—Arrangement of sensors
-
- 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
- F01N2900/1814—Tank level
-
- 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
Description
11 SCR装置
12 ドージングバルブ
13 NOxセンサ
15 尿素水タンク
22 尿素水センサ
23 尿素水圧力センサ
30 噴射量指示手段
31 指示噴射量積算手段
32 消費量算出手段
33 異常診断手段
34 NOx浄化率判定手段
Claims (1)
- 尿素水タンク内の尿素水を、サプライポンプにて吸い込み、これを圧送ラインを介してSCR装置の上流側に設けたドージングバルブから噴射するための尿素SCR用尿素水消費量診断装置において、
前記SCR装置の下流側に設けられたNOxセンサと、
NOxセンサの検出値が入力され、その検出値からNOx浄化率が規定値内にあるかどうかを判定するNOx浄化率判定手段と、
前記ドージングバルブから噴射する尿素水量を指示する噴射量指示手段と、
前記噴射量指示手段で指示した噴射量を積算する指示噴射量積算手段と、
尿素水タンク内の尿素水消費量を算出する消費量算出手段と、
圧送ライン又はドージングバルブ内での尿素水の詰まりの有無を判断する異常診断手段とを備え、
前記異常診断手段が、前記NOx浄化率判定手段でNOx浄化率が規定値以上で、前記指示噴射量積算手段で算出した尿素水噴射量と前記尿素水消費量との差が閾値以上のとき、尿素水タンクへ尿素水が少量補充されたとして異常診断を行わないことを特徴とする尿素SCR用尿素水消費量診断装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012288067A JP6127510B2 (ja) | 2012-12-28 | 2012-12-28 | 尿素scr用尿素水消費量診断装置 |
PCT/JP2013/083748 WO2014103798A1 (ja) | 2012-12-28 | 2013-12-17 | 尿素scr用尿素水消費量診断装置 |
EP13869233.0A EP2942502B1 (en) | 2012-12-28 | 2013-12-17 | Urea water consumption diagnostic device for urea scr |
CN201380068481.3A CN104903555B (zh) | 2012-12-28 | 2013-12-17 | 尿素scr用尿素水消耗量诊断装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012288067A JP6127510B2 (ja) | 2012-12-28 | 2012-12-28 | 尿素scr用尿素水消費量診断装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014129766A JP2014129766A (ja) | 2014-07-10 |
JP6127510B2 true JP6127510B2 (ja) | 2017-05-17 |
Family
ID=51020885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012288067A Expired - Fee Related JP6127510B2 (ja) | 2012-12-28 | 2012-12-28 | 尿素scr用尿素水消費量診断装置 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2942502B1 (ja) |
JP (1) | JP6127510B2 (ja) |
CN (1) | CN104903555B (ja) |
WO (1) | WO2014103798A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6437831B2 (ja) * | 2015-01-22 | 2018-12-12 | 日立建機株式会社 | 排気浄化装置 |
KR101666157B1 (ko) | 2016-03-18 | 2016-10-13 | (주)가온테크 | 요소수 보충을 강제하기 위한 배기 브레이크 제어모듈을 구비한 scr 장치 |
DE102016210619A1 (de) * | 2016-06-15 | 2017-12-21 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Reagenzmittel-Dosiersystems, Vorrichtung zur Durchführung des Verfahrens, Computer-Programm sowie Computer-Programmprodukt |
CN106837485A (zh) * | 2016-12-26 | 2017-06-13 | 潍柴动力空气净化科技有限公司 | Scr喷射系统稳态控制精度的测试装置及其方法 |
FR3069574B1 (fr) | 2017-07-25 | 2019-08-02 | Continental Automotive France | Procede d'adaptation d'une quantite d'agent reducteur pour une depollution en oxydes d'azote des gaz dans une ligne d'echappement de moteur |
EP3480048B1 (en) * | 2017-11-03 | 2020-04-29 | MEAS France | Tank tube bracket for a tank with a diverted discharge opening |
CN111075544A (zh) * | 2019-12-20 | 2020-04-28 | 一汽解放汽车有限公司 | 一种基于尿素液位传感器的尿素消耗偏差诊断方法 |
CN112302771B (zh) * | 2020-11-06 | 2022-01-25 | 潍柴动力股份有限公司 | 检测尿素消耗量异常的方法、装置、设备及存储介质 |
CN112412598B (zh) * | 2020-11-17 | 2021-06-25 | 南京依柯卡特排放技术股份有限公司 | 车辆尿素消耗偏差的判断方法、装置、系统及可读取介质 |
CN112963229B (zh) * | 2021-03-19 | 2021-09-28 | 南京依柯卡特排放技术股份有限公司 | 用于柴油发动机货车的尿素剩余量监控预警系统及方法 |
CN114458433B (zh) * | 2022-02-16 | 2023-05-23 | 潍柴动力股份有限公司 | 一种尿素喷嘴堵塞判断方法、scr系统及车辆 |
CN114687839B (zh) * | 2022-03-18 | 2023-06-23 | 潍柴动力股份有限公司 | 尿素液位卡滞的确定方法、确定装置和车辆 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006250117A (ja) * | 2005-03-14 | 2006-09-21 | Nissan Diesel Motor Co Ltd | 排気浄化システムの還元剤噴射状況判定装置 |
JP4165896B2 (ja) * | 2007-02-19 | 2008-10-15 | ボッシュ株式会社 | 還元剤経路の詰まり判定装置及び還元剤経路の詰まり判定方法 |
JP4710868B2 (ja) * | 2007-04-25 | 2011-06-29 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP4428445B2 (ja) * | 2007-09-05 | 2010-03-10 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
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 |
JP2010151094A (ja) * | 2008-12-26 | 2010-07-08 | Bosch Corp | 還元剤の漏れ検出装置及び漏れ検出方法 |
JP5617348B2 (ja) | 2010-05-17 | 2014-11-05 | いすゞ自動車株式会社 | Scrシステム |
JP5471831B2 (ja) | 2010-05-25 | 2014-04-16 | いすゞ自動車株式会社 | Scrシステム |
CN102748101B (zh) * | 2012-07-10 | 2014-03-26 | 天津亿利汽车环保科技有限公司 | 用于降低发动机NOx排放的尿素喷射系统及其控制方法 |
-
2012
- 2012-12-28 JP JP2012288067A patent/JP6127510B2/ja not_active Expired - Fee Related
-
2013
- 2013-12-17 WO PCT/JP2013/083748 patent/WO2014103798A1/ja active Application Filing
- 2013-12-17 EP EP13869233.0A patent/EP2942502B1/en active Active
- 2013-12-17 CN CN201380068481.3A patent/CN104903555B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN104903555A (zh) | 2015-09-09 |
EP2942502A4 (en) | 2016-09-28 |
CN104903555B (zh) | 2017-08-29 |
JP2014129766A (ja) | 2014-07-10 |
WO2014103798A1 (ja) | 2014-07-03 |
EP2942502B1 (en) | 2017-11-29 |
EP2942502A1 (en) | 2015-11-11 |
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