JP5455909B2 - 車両に搭載された状態で触媒の老化状態を検査するための方法 - Google Patents
車両に搭載された状態で触媒の老化状態を検査するための方法 Download PDFInfo
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- JP5455909B2 JP5455909B2 JP2010522387A JP2010522387A JP5455909B2 JP 5455909 B2 JP5455909 B2 JP 5455909B2 JP 2010522387 A JP2010522387 A JP 2010522387A JP 2010522387 A JP2010522387 A JP 2010522387A JP 5455909 B2 JP5455909 B2 JP 5455909B2
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000032683 aging Effects 0.000 title claims abstract description 36
- 239000003054 catalyst Substances 0.000 title claims description 258
- 230000008859 change Effects 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 37
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 37
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 230000002123 temporal effect Effects 0.000 claims description 24
- 229930195733 hydrocarbon Natural products 0.000 claims description 21
- 150000002430 hydrocarbons Chemical class 0.000 claims description 21
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000003344 environmental pollutant Substances 0.000 claims 1
- 231100000719 pollutant Toxicity 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- 230000000630 rising effect Effects 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 94
- 238000007689 inspection Methods 0.000 description 28
- 239000000126 substance Substances 0.000 description 19
- 239000000383 hazardous chemical Substances 0.000 description 10
- 230000020169 heat generation Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010718 Oxidation Activity Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
- F01N11/005—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus the temperature or pressure being estimated, e.g. by means of a theoretical model
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
a)所定の期間Δtの間、触媒への流入前の排ガスに付加的な可燃性の成分を添加し、
b)触媒での付加的な可燃性の成分の燃焼時の発熱に基づく触媒の背後の排ガスの時間的な温度プロファイルを測定し、
c)可燃性の成分の添加の開始と、触媒の背後の温度プロファイルの最大値の形成との間の時間差を検出し、
d)この時間差が、設定された値を下回っている場合に、触媒が著しく損なわれているという信号をセットする:
によって解決される。
検査の間の触媒内の過程が、商用の演算プログラムによって、有害物質パルスとして純粋なCOパルスを仮定して検査された。このシミュレーション演算の結果は、以下の図3〜図6に示してあり、本発明をさらに詳しく説明するために使用される。
曲線a):TAbgas=200℃(ライトオフ温度に相当)
曲線b):TAbgas=220℃
曲線c):TAbgas=240℃
曲線d):TAbgas=260℃。
Claims (6)
- 車両機関の排ガスを浄化するための触媒の老化状態を推測するための方法であって、排ガスが、一酸化炭素および/または炭化水素を含有しており、推測を車両のコンスタントな運転条件下で行って、触媒の老化状態を推測するための方法において、
推測のために、触媒への流入前の排ガス内の一酸化炭素および/または炭化水素の濃度を、車両機関への燃料のポスト噴射または車両機関と触媒との間の排ガス内への燃料の噴射によって所定の期間Δtの間増加させることによる触媒の運転条件の変化のタイミングと、これにより生ぜしめられる、触媒の背後の排ガスの時間的な温度プロファイルの最大値の形成のタイミングとの間の時間差を測定し、該時間差から触媒の老化状態を推測するものであって、触媒の背後に温度プロファイルの最大値が生じるのが遅ければ遅いほど、触媒が活性であることを特徴とする、触媒の老化状態を推測するための方法。 - 触媒の老化状態を、測定された時間差から演算モデルを用いて推測する、請求項1記載の方法。
- 排ガス内の一酸化炭素および/または炭化水素の濃度を、触媒の背後の温度プロファイルが、触媒での燃焼に基づき少なくとも5℃の振幅を有するように増加させる、請求項1記載の方法。
- 期間Δtを1〜10秒の間で選択する、請求項1記載の方法。
- 推測を、老化させられた触媒が、新規の触媒の一酸化炭素および/または炭化水素に対する有害物質変換率に近い変換率を有するような、前記触媒への流入前の排ガス温度において行う、請求項1記載の方法。
- a)所定の期間Δtの間、触媒への流入前の排ガスに付加的な一酸化炭素および/または炭化水素を添加し、
b)触媒での付加的な一酸化炭素および/または炭化水素の燃焼時の発熱に基づく触媒の背後の排ガスの時間的な温度プロファイルを測定し、
c)付加的な一酸化炭素および/または炭化水素の添加の開始のタイミングと、触媒の背後の温度プロファイルの最大値の形成のタイミングとの間の時間差を検出し、
d)該時間差が、設定された値を下回っている場合に、触媒が損なわれているという信号をセットする、請求項1記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07115470A EP2031207B1 (de) | 2007-08-31 | 2007-08-31 | Verfahren zur Prüfung des Alterungszustandes eines Katalysators an Bord eines Fahrzeugs |
EP07115470.2 | 2007-08-31 | ||
PCT/EP2008/061392 WO2009027505A1 (de) | 2007-08-31 | 2008-08-29 | Verfahren zur prüfung des alterungszustandes eines katalysators an bord eines fahrzeugs |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010537123A JP2010537123A (ja) | 2010-12-02 |
JP5455909B2 true JP5455909B2 (ja) | 2014-03-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010522387A Active JP5455909B2 (ja) | 2007-08-31 | 2008-08-29 | 車両に搭載された状態で触媒の老化状態を検査するための方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US8276438B2 (ja) |
EP (1) | EP2031207B1 (ja) |
JP (1) | JP5455909B2 (ja) |
KR (1) | KR101499491B1 (ja) |
CN (1) | CN101790624B (ja) |
AT (1) | ATE448395T1 (ja) |
BR (1) | BRPI0815813A2 (ja) |
DE (1) | DE502007001990D1 (ja) |
RU (1) | RU2484269C2 (ja) |
WO (1) | WO2009027505A1 (ja) |
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JP2013520486A (ja) | 2010-02-26 | 2013-06-06 | カウンシル・オヴ・サイエンティフィック・アンド・インダストリアル・リサーチ | ヒドロキシアセトンまたはプロピレングリコールを調製するための方法 |
CN102169057B (zh) * | 2010-02-27 | 2013-08-07 | 比亚迪股份有限公司 | 一种三元催化器的老化方法 |
JP5545967B2 (ja) * | 2010-03-02 | 2014-07-09 | 日立Geニュークリア・エナジー株式会社 | 排ガス再結合器 |
US8621854B2 (en) * | 2010-06-29 | 2014-01-07 | GM Global Technology Operations LLC | System and method for determining an age of and controlling a selective catalytic reduction catalyst |
DE102011102008A1 (de) * | 2011-05-19 | 2012-11-22 | Man Truck & Bus Ag | Verfahren und Vorrichtung zur Überprüfung der Funktionsfähigkeit, insbesondere der Oxidationsfähigkeit, eines in der Abgasleitung einer mit Luftüberschuss betriebenen Brennkraftmaschine verbauten NO-Oxidationskatalysators |
CN102419259B (zh) * | 2011-09-08 | 2013-11-27 | 中国汽车技术研究中心 | 基于温度过程的发动机台架三元催化器老化时间计算方法 |
DE102014201072A1 (de) * | 2013-02-01 | 2014-08-07 | Ford Global Technologies, Llc | Bestimmen eines Alterungsgrades eines Oxidationskatalysators |
GB2511772B (en) | 2013-03-12 | 2019-01-30 | Ceramex Ltd | Testing catalytic efficiency of an exhaust component |
DE102014209972B4 (de) | 2013-07-05 | 2024-03-21 | Ford Global Technologies, Llc | Verfahren und Vorrichtung zum Bewerten des Alterungszustandeseines NOx-Speicherkatalysators |
US9638122B2 (en) * | 2013-12-20 | 2017-05-02 | Ford Global Technologies, Llc | Method to diagnose SCR catalyst |
CN104729837A (zh) * | 2013-12-20 | 2015-06-24 | 北汽福田汽车股份有限公司 | 柴油机氧化催化转化器doc的性能测试方法及系统 |
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DE102016200017A1 (de) * | 2016-01-05 | 2017-07-06 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Bestimmung des Alterungszustandes eines Katalysators |
DE102017216998A1 (de) | 2017-09-26 | 2019-03-28 | Bayerische Motoren Werke Aktiengesellschaft | Katalysator mit OBD-System |
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CN110907179B (zh) * | 2018-09-17 | 2021-07-27 | 上海汽车集团股份有限公司 | 一种后处理系统的老化方法及装置、处理方法 |
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- 2007-08-31 AT AT07115470T patent/ATE448395T1/de active
- 2007-08-31 DE DE502007001990T patent/DE502007001990D1/de active Active
- 2007-08-31 EP EP07115470A patent/EP2031207B1/de active Active
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- 2008-08-29 WO PCT/EP2008/061392 patent/WO2009027505A1/de active Application Filing
- 2008-08-29 KR KR1020107003094A patent/KR101499491B1/ko active IP Right Grant
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RU2484269C2 (ru) | 2013-06-10 |
KR20100054129A (ko) | 2010-05-24 |
JP2010537123A (ja) | 2010-12-02 |
KR101499491B1 (ko) | 2015-03-09 |
BRPI0815813A2 (pt) | 2015-02-18 |
CN101790624A (zh) | 2010-07-28 |
US8276438B2 (en) | 2012-10-02 |
DE502007001990D1 (de) | 2009-12-24 |
EP2031207B1 (de) | 2009-11-11 |
EP2031207A1 (de) | 2009-03-04 |
US20110056280A1 (en) | 2011-03-10 |
ATE448395T1 (de) | 2009-11-15 |
WO2009027505A1 (de) | 2009-03-05 |
RU2010112235A (ru) | 2011-10-10 |
CN101790624B (zh) | 2012-05-23 |
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