JP2007509275A - 配量弁の作動方法および装置 - Google Patents
配量弁の作動方法および装置 Download PDFInfo
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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]
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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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
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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
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/05—Systems for adding substances into exhaust
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0421—Methods of control or diagnosing using an increment counter when a predetermined event occurs
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
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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
- 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
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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
- 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
- F01N2900/1808—Pressure
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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
- 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
- F01N2900/1811—Temperature
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- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Testing Of Engines (AREA)
Abstract
【解決手段】内燃機関(10)排気領域(13)内に注入されるべき反応剤の流量を決定する、配量弁(31)の作動方法において、診断時間(T3)の間の流出量に対する尺度の評価を行う、配量弁(31)の診断が実行される。第1の形態は、1つの診断開始信号(24、35、40、42)が発生した後に、配量弁(31)が閉鎖されて反応剤がポンプ(27)により所定の診断開始圧力(P1)まで上昇され、それに続いて配量弁(31)が所定の流量に設定され、診断時間(T3)の間に発生した圧力差(P3)が評価される。他の形態は、診断時間(T3)の間に配量弁(31)から計量カップ内に放出された反応剤の量の評価を行う。
【選択図】図1
Description
第1の形態は、診断装置が提供する開始信号によって診断が開始されるように設計されている。第1の形態は、例えば自動車整備工場内において実行可能な内燃機関の検査の範囲内において、診断を実行するのに適している。流出量に対する尺度は、反応剤が計量カップ内に受け取られる所定の計測時間の間に決定される。例えば配量弁の新品状態において決定され且つ制御装置のメモリ内に記憶された基準値との比較により、補償値を考慮するだけで十分であるかまたは配量弁の交換が必要であるかが判定可能である。
配量制御手段21は、配量弁操作手段25に配量弁信号26を出力し、ポンプ27にポンプ信号28を出力する。配量制御手段21は、診断制御手段23から、供給された診断信号29のみならず補正信号30もまた受け取る。
信号評価手段39は診断制御手段23内に含まれている。診断制御手段23に、さらに、惰性回転制御手段60から第3の診断開始信号40が、並びに診断装置41から第4の診断開始信号42が供給される。
内燃機関10の排気領域13に配置されている排気ガス浄化装置15は、例えばすすまたは窒素酸化物のような少なくとも1つの排気ガス成分を低減させる。したがって、排気ガス浄化装置15は、例えばフィルタとしてまたは触媒として形成されていてもよい。以下においては、排気ガス浄化装置15は、窒素酸化物を低減させるために設けられ且つSCR触媒(選択反応触媒)として形成されていると仮定される。従来技術から既知のSCR触媒においては、反応剤として尿素水溶液が必要とされ、尿素水溶液は、反応剤タンク36内に貯蔵されている。
スタート50は、第1、第2、第3および/または第4の診断開始信号24、35、40、42の発生により達成される。第1の機能ブロック51において、配量弁31が閉鎖される。診断制御手段23は、配量制御手段21に供給される診断信号29を介して配量弁31を閉鎖させる。それに続く第2の機能ブロック52において、ポンプ27が投入される。この過程は、同様に診断信号29の発生により開始される。図3に示されている診断開始時点T1は、第1の問い合わせブロック53において、圧力Pが診断開始圧力P1に到達したことが特定されたときに到達される。診断開始圧力P1は、信号評価手段39に所定のしきい値として供給される。診断開始圧力P1への到達は、圧力信号38を信号評価手段39に供給する圧力センサ37が検出する。診断開始圧力P1が到達されたとき、それに続く第3の機能ブロック54において、ポンプ27が遮断され、それに続く第4の機能ブロック55において配量弁31が所定の断面積で開放される。
Claims (10)
- 内燃機関(10)排気領域(13)内に注入されるべき反応剤の流量を決定する、配量弁(31)の作動方法において、
診断時間(T3)の間の流出量に対する尺度の評価を行う、配量弁(31)の診断が実行されることを特徴とする配量弁の作動方法。 - 診断装置(41)が発生する開始信号(42)によって、前記診断がスタートされること、および
診断時間(T3)の間に配量弁(31)から計量カップ内に放出された前記反応剤の量が評価されること、
を特徴とする請求項1に記載の作動方法。 - 配量弁(31)の前記流出量に対する尺度として、圧力差(P3)が使用されることを特徴とする請求項1に記載の作動方法。
- 診断開始信号(24、35、40、42)が発生した後に、配量弁(31)が閉鎖されて、前記反応剤がポンプ(27)により所定の診断開始圧力(P1)まで上昇されること、
それに続いて、配量弁(31)が所定の流量に設定されること、および
診断時間(T3)の間に発生した圧力差(P3)が評価されること、
を特徴とする請求項3に記載の作動方法。 - 圧力差(P3)が固定設定されていること、および
診断時間(T3)が所定の診断時間限界値(T3max)を超えたとき、警報信号(43)が提供されること、
を特徴とする請求項4に記載の作動方法。 - 診断時間(T3)が固定設定されていること、および
診断時間(T3)の間に圧力差(P3)が所定の圧力差限界値(P3max)を超えたとき、警報信号(43)が提供されること、
を特徴とする請求項4に記載の作動方法。 - 決定された前記流出量に対する尺度の関数として、配量作動の間に配量制御手段(21)から配量弁(31)に出力される配量弁信号(26)の適応が行われることを特徴とする請求項1に記載の作動方法。
- 圧力差(P3)の関数として、配量作動の間に配量制御手段(21)から配量弁(31)に出力される配量弁信号(26)の適応が行われることを特徴とする請求項3に記載の作動方法。
- 内燃機関制御手段(16)から提供された第1の診断開始信号(24)、および凍結サイクル・カウンタ(34)から提供された第2の診断開始信号(35)、および惰性回転制御手段(60)から提供された第3の診断開始信号(40)、および診断装置(41)から提供された第4の診断開始信号(42)の少なくともいずれかの診断開始信号により、前記診断がスタートされることを特徴とする請求項3または4に記載の作動方法。
- 請求項1ないし請求項9のいずれかの記載の作動方法を実施するための配量弁の作動装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003160891 DE10360891A1 (de) | 2003-12-19 | 2003-12-19 | Verfahren zum Betreiben eines Dosierventils und Vorrichtung zur Durchführung des Verfahrens |
DE10360891.5 | 2003-12-19 | ||
PCT/EP2004/053336 WO2005061866A1 (de) | 2003-12-19 | 2004-12-08 | Verfahren zum betreiben eines dosierventils und vorrichtung zur durchführung des verfahrens |
Publications (2)
Publication Number | Publication Date |
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JP2007509275A true JP2007509275A (ja) | 2007-04-12 |
JP4758902B2 JP4758902B2 (ja) | 2011-08-31 |
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Application Number | Title | Priority Date | Filing Date |
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JP2006536104A Expired - Fee Related JP4758902B2 (ja) | 2003-12-19 | 2004-12-08 | 配量弁の作動方法および装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8104268B2 (ja) |
EP (1) | EP1702145B1 (ja) |
JP (1) | JP4758902B2 (ja) |
DE (2) | DE10360891A1 (ja) |
WO (1) | WO2005061866A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007211773A (ja) * | 2006-02-09 | 2007-08-23 | Robert Bosch Gmbh | 排気ガス処理装置の診断方法および装置 |
JP2007330837A (ja) * | 2006-06-12 | 2007-12-27 | Miura Co Ltd | 脱硝装置および脱硝方法 |
WO2012063530A1 (ja) * | 2010-11-08 | 2012-05-18 | ボッシュ株式会社 | 還元剤噴射弁の異常判定装置及び還元剤供給装置 |
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WO2008130284A1 (en) | 2007-04-19 | 2008-10-30 | Volvo Lastvagnar Ab | Method and arrangement for monitoring of injector |
DE102007024081A1 (de) * | 2007-05-22 | 2008-11-27 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren und Vorrichtung zum Verdampfen eines Fluides |
US20080295492A1 (en) * | 2007-05-31 | 2008-12-04 | Caterpillar Inc. | Injector cleaning system based on pressure decay |
US8155860B2 (en) | 2008-04-01 | 2012-04-10 | Cummins Filtration Ip, Inc. | Real time doser efficiency monitoring |
DE102008001789A1 (de) * | 2008-05-15 | 2009-11-19 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Dosierventils und Vorrichtung zur Durchführung des Verfahrens |
DE102008055724A1 (de) * | 2008-11-04 | 2010-05-06 | J. Eberspächer GmbH & Co. KG | Abgasreinigungseinrichtung für Kraftfahrzeuge |
US8915062B2 (en) | 2009-10-09 | 2014-12-23 | GM Global Technology Operations LLC | Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system |
DE102010029852A1 (de) * | 2010-06-09 | 2011-12-15 | Bayerische Motoren Werke Aktiengesellschaft | Diagnostizieren einer Abgasreinigungsvorrichtung |
US9606023B2 (en) * | 2010-06-23 | 2017-03-28 | Inergy Automotive Systems Research (Societe Anonyme) | Method for monitoring an SCR system |
FR2961854A1 (fr) * | 2010-06-23 | 2011-12-30 | Inergy Automotive Systems Res | Methode pour controler un systeme scr |
DE102010030858A1 (de) * | 2010-07-02 | 2012-01-05 | Robert Bosch Gmbh | Verfahren zur Überwachung einer Dosiereinrichtung |
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FR2973831B1 (fr) * | 2011-04-08 | 2015-05-01 | Peugeot Citroen Automobiles Sa | Procede d'estimation de la quantite de reducteur dans un systeme de reduction catalytique selective |
DE102011076955B4 (de) | 2011-06-06 | 2013-05-23 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Dosiersystems und Vorrichtung zur Durchführung des Verfahrens |
US9068492B2 (en) | 2011-11-04 | 2015-06-30 | Ford Global Technologies, Llc | Motor vehicle on-board diagnostics to distinguish degradation from tampering |
DE102012206430B4 (de) | 2012-04-19 | 2015-10-08 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Dosierventils und Vorrichtung zur Durchführung des Verfahrens |
GB2501704A (en) * | 2012-04-30 | 2013-11-06 | Gm Global Tech Operations Inc | Estimating a fluid mass flow injected by an injector |
DE102012215394A1 (de) | 2012-08-30 | 2014-03-06 | Robert Bosch Gmbh | Vorrichtung zur Diagnose eines Dosiersystems und Verfahren zum Betreiben der Vorrichtung |
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DE102012215398A1 (de) | 2012-08-30 | 2014-03-06 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Dosiersystems und Vorrichtung zur Durchführung des Verfahrens |
DE102013207867B4 (de) | 2013-04-30 | 2016-01-21 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Dosierventils und Vorrichtung zur Durchführung des Verfahrens |
CN105793534B (zh) * | 2013-12-06 | 2019-01-29 | 沃尔沃卡车集团 | 用于内燃机设备的燃料系统 |
DE102014200805A1 (de) | 2014-01-17 | 2015-07-23 | Robert Bosch Gmbh | Verfahren zur volumetrischen Adaption von Fertigungstoleranzen bei einem SCR-Katalysatorsystem |
DE102014210877A1 (de) * | 2014-06-06 | 2015-12-17 | Continental Automotive Gmbh | Funktionsüberwachung einer Einspritzanlage |
DE102015203865A1 (de) * | 2015-03-04 | 2016-09-08 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Überprüfen eines Injektors für ein Reduktionsmittel im Abgassystem einer Brennkraftmaschine |
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DE102016209832B4 (de) * | 2016-06-03 | 2022-09-29 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren und Steuereinheit zum Überprüfen eines Dosiersystems für einen bei niedrigen Umgebungstemperaturen erstarrenden Zusatzstoff insbesondere zum Abgas eines Verbrennungsmotors |
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- 2004-12-08 EP EP20040817568 patent/EP1702145B1/de not_active Expired - Fee Related
- 2004-12-08 WO PCT/EP2004/053336 patent/WO2005061866A1/de active IP Right Grant
- 2004-12-08 US US10/583,054 patent/US8104268B2/en not_active Expired - Fee Related
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JP2007211773A (ja) * | 2006-02-09 | 2007-08-23 | Robert Bosch Gmbh | 排気ガス処理装置の診断方法および装置 |
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Also Published As
Publication number | Publication date |
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DE502004004265D1 (de) | 2007-08-16 |
US20090159132A1 (en) | 2009-06-25 |
DE10360891A1 (de) | 2005-07-21 |
US8104268B2 (en) | 2012-01-31 |
EP1702145A1 (de) | 2006-09-20 |
EP1702145B1 (de) | 2007-07-04 |
WO2005061866A1 (de) | 2005-07-07 |
JP4758902B2 (ja) | 2011-08-31 |
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