JP2012002061A - Scrシステム - Google Patents
Scrシステム Download PDFInfo
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- JP2012002061A JP2012002061A JP2010119862A JP2010119862A JP2012002061A JP 2012002061 A JP2012002061 A JP 2012002061A JP 2010119862 A JP2010119862 A JP 2010119862A JP 2010119862 A JP2010119862 A JP 2010119862A JP 2012002061 A JP2012002061 A JP 2012002061A
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- Prior art keywords
- urea water
- engine
- remaining amount
- low
- water tank
- Prior art date
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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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/10—Safety devices
- F02N11/101—Safety devices for preventing engine starter actuation or engagement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/80—Arrangements for signal processing
- G01F23/802—Particular electronic circuits for digital processing equipment
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0404—Methods of control or diagnosing using a data filter
-
- 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
- F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
-
- 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
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
- F02N2200/022—Engine speed
-
- 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)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
【解決手段】エンジンEの排気管102内に噴射するための尿素水を貯留する尿素水タンク105と、尿素水タンク105内の液面高さを検出するレベルセンサ120と、レベルセンサ120の出力信号に対し、エンジン回転数が低いときには時定数が小さく、エンジン回転数が高いときには時定数が大きい信号応答特性を有するローパスフィルタ1と、ローパスフィルタ1で処理されたレベルセンサ120の出力信号に基づく尿素水残量を表示する残量表示器2と、尿素水残量が下限値未満になった場合にエンジンの始動を禁止する尿素水欠乏時始動禁止部3とを備えた。
【選択図】図1
Description
2 残量表示器
3 尿素水欠乏時始動禁止部
4 残量表示制御部
5 時定数マップ
6 スケール
7 フロート
100 SCRシステム
Claims (2)
- エンジンの排気管内に噴射するための尿素水を貯留する尿素水タンクと、
前記尿素水タンク内の液面高さを検出するレベルセンサと、
前記レベルセンサの出力信号に対し、エンジン回転数が低いときには時定数が小さく、エンジン回転数が高いときには時定数が大きい信号応答特性を有するローパスフィルタと、
前記ローパスフィルタで処理された前記レベルセンサの出力信号に基づく尿素水残量を表示する残量表示器と、
尿素水残量が下限値未満になった場合にエンジンの始動を禁止する尿素水欠乏時始動禁止部とを備えたことを特徴とするSCRシステム。 - 前記ローパスフィルタの時定数は、エンジン回転数が0からクランキング回転数までは0であり、クランキング回転数以上ではエンジン回転数の増大に随伴して増大することを特徴とする請求項1記載のSCRシステム。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010119862A JP5617348B2 (ja) | 2010-05-17 | 2010-05-25 | Scrシステム |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010113746 | 2010-05-17 | ||
JP2010113746 | 2010-05-17 | ||
JP2010119862A JP5617348B2 (ja) | 2010-05-17 | 2010-05-25 | Scrシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012002061A true JP2012002061A (ja) | 2012-01-05 |
JP5617348B2 JP5617348B2 (ja) | 2014-11-05 |
Family
ID=44991675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010119862A Expired - Fee Related JP5617348B2 (ja) | 2010-05-17 | 2010-05-25 | Scrシステム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130055700A1 (ja) |
EP (1) | EP2573345B1 (ja) |
JP (1) | JP5617348B2 (ja) |
CN (1) | CN102892987B (ja) |
WO (1) | WO2011145572A1 (ja) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103670621A (zh) * | 2013-12-20 | 2014-03-26 | 无锡市凯龙汽车设备制造有限公司 | 带有观察窗的尿素溶液罐 |
CN103898939A (zh) * | 2012-12-26 | 2014-07-02 | 住友建机株式会社 | 施工机械及其控制方法 |
WO2014103798A1 (ja) | 2012-12-28 | 2014-07-03 | いすゞ自動車株式会社 | 尿素scr用尿素水消費量診断装置 |
WO2014103797A1 (ja) | 2012-12-28 | 2014-07-03 | いすゞ自動車株式会社 | 尿素scr用尿素水消費量診断装置 |
JP2014129767A (ja) * | 2012-12-28 | 2014-07-10 | Isuzu Motors Ltd | 尿素scr用尿素水消費量診断装置 |
JP2014129765A (ja) * | 2012-12-28 | 2014-07-10 | Isuzu Motors Ltd | 尿素scr用尿素水消費量診断装置 |
WO2014115620A1 (ja) | 2013-01-28 | 2014-07-31 | いすゞ自動車株式会社 | 尿素scr用尿素水配管閉塞検出装置 |
WO2014115619A1 (ja) | 2013-01-28 | 2014-07-31 | いすゞ自動車株式会社 | 尿素scr用尿素水消費量診断装置 |
WO2015117114A1 (en) * | 2014-02-03 | 2015-08-06 | Caterpillar Inc. | Diesel exhaust fluid filter permeability detection strategy and machine using same |
KR20160030944A (ko) * | 2013-07-17 | 2016-03-21 | 스미토모 겐키 가부시키가이샤 | 쇼벨 |
CN107975409A (zh) * | 2017-12-25 | 2018-05-01 | 潍柴动力股份有限公司 | 尿素箱液位显示方法及装置 |
CN112832891A (zh) * | 2021-01-05 | 2021-05-25 | 潍柴动力股份有限公司 | 氮氧化物传感器的浓度检测值的修正方法及装置 |
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US9334779B2 (en) * | 2012-01-11 | 2016-05-10 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification device for internal combustion engine |
US20160356192A1 (en) * | 2013-04-22 | 2016-12-08 | International Engine Intellectual Property Company Llc | Locating pin |
US9708959B2 (en) | 2013-07-11 | 2017-07-18 | Ford Global Technologies, Llc | Filtering method for intermittent ultrasonic level sensors |
GB2516655A (en) * | 2013-07-29 | 2015-02-04 | Gm Global Tech Operations Inc | Control apparatus for detecting a variation of a fluid level in a tank |
CN103410593B (zh) * | 2013-07-30 | 2017-03-15 | 中国第一汽车股份有限公司 | 固体储氨系统的剩余氨气量的激光检测方法 |
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CN103541798B (zh) * | 2013-10-30 | 2016-05-04 | 中国第一汽车股份有限公司 | 基于质量流量计的固体储氨系统的剩余氨气量的检测方法 |
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CN107288767A (zh) * | 2017-06-30 | 2017-10-24 | 潍柴动力股份有限公司 | 液位处理方法、液位处理装置及电控发动机 |
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-
2010
- 2010-05-25 JP JP2010119862A patent/JP5617348B2/ja not_active Expired - Fee Related
-
2011
- 2011-05-16 WO PCT/JP2011/061222 patent/WO2011145572A1/ja active Application Filing
- 2011-05-16 EP EP11783506.6A patent/EP2573345B1/en active Active
- 2011-05-16 US US13/698,161 patent/US20130055700A1/en not_active Abandoned
- 2011-05-16 CN CN201180024495.6A patent/CN102892987B/zh active Active
Patent Citations (4)
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JPS57211514A (en) * | 1981-06-23 | 1982-12-25 | Mitsubishi Electric Corp | Fuel level gauge for automobile |
JPH0528936U (ja) * | 1991-09-27 | 1993-04-16 | 株式会社カンセイ | 液面計装置 |
JP2004510151A (ja) * | 2000-09-26 | 2004-04-02 | シーメンス アクチエンゲゼルシヤフト | タンク内の液体の水位を測定するための方法および装置 |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103898939A (zh) * | 2012-12-26 | 2014-07-02 | 住友建机株式会社 | 施工机械及其控制方法 |
WO2014103798A1 (ja) | 2012-12-28 | 2014-07-03 | いすゞ自動車株式会社 | 尿素scr用尿素水消費量診断装置 |
WO2014103797A1 (ja) | 2012-12-28 | 2014-07-03 | いすゞ自動車株式会社 | 尿素scr用尿素水消費量診断装置 |
JP2014129767A (ja) * | 2012-12-28 | 2014-07-10 | Isuzu Motors Ltd | 尿素scr用尿素水消費量診断装置 |
JP2014129765A (ja) * | 2012-12-28 | 2014-07-10 | Isuzu Motors Ltd | 尿素scr用尿素水消費量診断装置 |
US9605574B2 (en) | 2013-01-28 | 2017-03-28 | Isuzu Motors Limited | Urea water pipe clogging detection device for urea selective catalytic reduction |
WO2014115620A1 (ja) | 2013-01-28 | 2014-07-31 | いすゞ自動車株式会社 | 尿素scr用尿素水配管閉塞検出装置 |
WO2014115619A1 (ja) | 2013-01-28 | 2014-07-31 | いすゞ自動車株式会社 | 尿素scr用尿素水消費量診断装置 |
KR102137299B1 (ko) | 2013-07-17 | 2020-07-23 | 스미토모 겐키 가부시키가이샤 | 쇼벨 |
KR20160030944A (ko) * | 2013-07-17 | 2016-03-21 | 스미토모 겐키 가부시키가이샤 | 쇼벨 |
CN103670621A (zh) * | 2013-12-20 | 2014-03-26 | 无锡市凯龙汽车设备制造有限公司 | 带有观察窗的尿素溶液罐 |
WO2015117114A1 (en) * | 2014-02-03 | 2015-08-06 | Caterpillar Inc. | Diesel exhaust fluid filter permeability detection strategy and machine using same |
CN107975409A (zh) * | 2017-12-25 | 2018-05-01 | 潍柴动力股份有限公司 | 尿素箱液位显示方法及装置 |
CN107975409B (zh) * | 2017-12-25 | 2020-08-21 | 潍柴动力股份有限公司 | 尿素箱液位显示方法及装置 |
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CN102892987A (zh) | 2013-01-23 |
JP5617348B2 (ja) | 2014-11-05 |
EP2573345A1 (en) | 2013-03-27 |
WO2011145572A1 (ja) | 2011-11-24 |
US20130055700A1 (en) | 2013-03-07 |
CN102892987B (zh) | 2015-04-22 |
EP2573345A4 (en) | 2016-04-20 |
EP2573345B1 (en) | 2017-11-15 |
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