JP4038209B2 - 粒子検出器の機能性を検査する方法およびシステム - Google Patents
粒子検出器の機能性を検査する方法およびシステム Download PDFInfo
- Publication number
- JP4038209B2 JP4038209B2 JP2004543925A JP2004543925A JP4038209B2 JP 4038209 B2 JP4038209 B2 JP 4038209B2 JP 2004543925 A JP2004543925 A JP 2004543925A JP 2004543925 A JP2004543925 A JP 2004543925A JP 4038209 B2 JP4038209 B2 JP 4038209B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- particle
- detector
- soot
- functionality
- 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
- 239000002245 particle Substances 0.000 title claims description 70
- 238000000034 method Methods 0.000 title claims description 17
- 238000012360 testing method Methods 0.000 title claims description 7
- 239000004071 soot Substances 0.000 claims description 37
- 230000008929 regeneration Effects 0.000 claims description 24
- 238000011069 regeneration method Methods 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 21
- 238000011156 evaluation Methods 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 15
- 150000002500 ions Chemical class 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims 2
- 238000010998 test method Methods 0.000 claims 1
- 238000007689 inspection Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010291 electrical method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- 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
- 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
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1466—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
-
- 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
- F01N2550/04—Filtering activity of particulate filters
-
- 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
- F01N2560/05—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a particulate sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
-
- 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
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/10—Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing
- Y10T436/101666—Particle count or volume standard or control [e.g., platelet count standards, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Exhaust Gas After Treatment (AREA)
- Testing Of Engines (AREA)
Description
本発明によれば、粒子フィルタの再生の際に発生する粒子を粒子検出器により検出し、得られた測定結果を予期される結果と比較する。とりわけ粒子検出器から測定中に送出される信号は例えば連続的に予期される信号を比較される。
本発明とその利点について図面と実施例に基づき詳細に説明する。
本発明を、煤煙検出器3と煤煙フィルタ7の例で説明する。これらはディーゼル内燃機関の排ガス管路1に配置されている。図は、排ガス管路1における排ガスの流動方向2,煤煙フィルタ7並びに後置接続された煤煙検出器3を示す。
Claims (13)
- 粒子検出器(4)に流動方向(2)で前置接続された粒子フィルタ(7)を使用した、粒子検出器(3)の機能性の検査方法において、
粒子フィルタ(7)の再生の際に発生する粒子を粒子検出器(3)により検出し、
得られた測定結果を予期される結果と比較する、
ことを特徴とする方法。 - 請求項1記載の方法において、
粒子検出器(3)の予期される測定結果を、粒子フィルタ(7)の充填状態および生成条件に基づいて検出する。 - 請求項1または2記載の方法において、
自由燃焼により再生することのできる煤煙フィルタ(7)を使用した、煤煙検出器(3)の機能性の検査のために、再生中に発生するイオンを煤煙検出器(3)により検出する。 - 請求項3記載の方法において、
煤煙フィルタ(7)内で、または煤煙フィルタで、または流動方向(2)で煤煙フィルタの下流で温度を測定し、
煤煙フィルタ(7)の充填状態と測定した温度とから、煤煙検出器(3)の予期される測定結果を検出する。 - 請求項1から4までのいずれか1項記載の方法において、
予期される結果と測定された結果との偏差を求め、限界値と比較し、
限界値を上回る場合に粒子検出器(3)にエラーがあると分類する。 - 請求項1から5までのいずれか1項記載の方法において、
粒子検出器(3)の機能性を検査する間、再生条件を変更し、とりわけ煤煙フィルタ(7)の周囲で温度を上昇させる。 - 煤煙フィルタ(7)の再生のために、当該煤煙フィルタ周囲の温度を500℃以上、有利には600℃から1000℃に高める。
- 流動方向(2)で粒子フィルタ(3)に後置接続された粒子検出器(3)の機能性を検査するシステムにおいて、
制御および評価装置(9)が設けられており、
該制御および評価ユニットは、粒子フィルタ(7)の再生中に、粒子検出器(3)から送出された測定結果を検出し、予期される結果と比較する、
ことを特徴とするシステム。 - 請求項8記載のシステムにおいて、
制御および評価ユニット(9)は、フィルタの実際の充填状態とそれぞれの再生条件からなる所定のモデルを使用して予期される測定結果を検出するように構成されている。 - 請求項8または9記載のシステムにおいて、
温度センサ(8)が、粒子フィルタ(7)に、または粒子フィルタ内に、または流動方向で粒子フィルタの下流に配置されている。 - 請求項8から10までのいずれか1項記載のシステムに対する制御および評価ユニット(9)。
- コンピュータまたは相応の計算ユニット、とりわけ請求項8記載のシステムにおける制御および評価ユニット(9)上で実行されるときに、請求項1から7までのいずれか1項記載の方法のステップを実行するためのプログラムコード手段を有するコンピュータプログラム。
- コンピュータまたは相応の計算ユニット、とりわけ請求項8記載のシステムにおける制御および評価ユニット(9)上で実行されるときに、請求項1から7までのいずれか1項記載の方法のステップを実行するために、コンピュータにより読み出し可能なデータ担体に記憶されたプログラムコード手段を有するコンピュータプログラム製品。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10247977A DE10247977A1 (de) | 2002-10-15 | 2002-10-15 | Verfahren und System zur Überprüfung der Funktionsfähigkeit eines Teilchendetektors |
PCT/DE2003/002097 WO2004036006A1 (de) | 2002-10-15 | 2003-06-24 | Verfahren und system zur überprüfung der funktionsfähigkeit eines teilchendetektors |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006503270A JP2006503270A (ja) | 2006-01-26 |
JP4038209B2 true JP4038209B2 (ja) | 2008-01-23 |
Family
ID=32049270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004543925A Expired - Fee Related JP4038209B2 (ja) | 2002-10-15 | 2003-06-24 | 粒子検出器の機能性を検査する方法およびシステム |
Country Status (5)
Country | Link |
---|---|
US (1) | US7487660B2 (ja) |
EP (1) | EP1554475B1 (ja) |
JP (1) | JP4038209B2 (ja) |
DE (2) | DE10247977A1 (ja) |
WO (1) | WO2004036006A1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6947831B2 (en) * | 2003-04-11 | 2005-09-20 | Ford Global Technologies, Llc | Pressure sensor diagnosis via a computer |
DE102004000065A1 (de) * | 2004-12-07 | 2006-06-08 | Ford Global Technologies, LLC, A Subsidiary of Ford Motor Company, Dearborn | Verfahren und Vorrichtung zur Kontrolle der Regeneration eines Partikelfilters |
DE102005000978B4 (de) * | 2005-01-07 | 2011-06-01 | Continental Automotive Gmbh | Vorrichtung zur Steuerung des Schadstoffausstoßes eines selbstzündenden Verbrennungsmotors |
DE102006055520A1 (de) * | 2006-11-24 | 2008-05-29 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Überprüfung der Funktionsfähigkeit bzw. zur Plausibilisierung eines auf einem interdigitalen Elektrodensystem basierenden Sensors sowie ein Sensor zur Detektion von Teilchen in einem Gasstrom und dessen Verwendung |
JP4676420B2 (ja) * | 2006-12-21 | 2011-04-27 | 株式会社堀場製作所 | 多段切替式粒子状物質測定装置 |
WO2008111677A1 (ja) | 2007-03-15 | 2008-09-18 | Ngk Insulators, Ltd. | 粒子状物質検出装置及び粒子状物質検出方法 |
US8448511B2 (en) * | 2009-09-02 | 2013-05-28 | Ford Global Technologies, Llc | Method for evaluating degradation of a particulate matter sensor after an engine start |
JP5635776B2 (ja) | 2010-01-07 | 2014-12-03 | 日本碍子株式会社 | 粒子状物質検出装置、及び粒子状物質検出装置の検査方法 |
DE102010006708B4 (de) * | 2010-02-02 | 2013-01-17 | Continental Automotive Gmbh | Diagnoseverfahren eines Rußsensors |
US10375107B2 (en) | 2010-07-22 | 2019-08-06 | International Business Machines Corporation | Method and apparatus for dynamic content marking to facilitate context-aware output escaping |
US10372899B2 (en) | 2010-07-22 | 2019-08-06 | International Business Machines Corporation | Method and apparatus for context-aware output escaping using dynamic content marking |
EP2492481A1 (en) | 2011-02-22 | 2012-08-29 | Delphi Technologies Holding S.à.r.l. | Soot sensor functional capability monitoring |
DE102012001044A1 (de) * | 2012-01-20 | 2013-07-25 | Daimler Ag | Verfahren zum Überwachen eines Rußsensors |
JP6014429B2 (ja) * | 2012-09-12 | 2016-10-25 | 日野自動車株式会社 | 粒子センサ |
GB201410283D0 (en) * | 2014-06-10 | 2014-07-23 | Cambridge Entpr Ltd | Sensing methods and apparatus |
US20180073973A1 (en) | 2016-09-12 | 2018-03-15 | Hyundai Motor Company | Particulate matters sensor device and manufacturing method of sensor unit provided in this |
US10132262B2 (en) * | 2016-11-02 | 2018-11-20 | GM Global Technology Operations LLC | Methods for optimizing exhaust gas system regeneration and cleaning |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2022702C (en) * | 1990-08-03 | 1995-02-07 | Frank B. Walton | Method and apparatus for detecting soot concentration in particulate trap |
JP2780507B2 (ja) | 1991-03-29 | 1998-07-30 | 松下電器産業株式会社 | 内燃機関用フィルタ再生装置 |
JPH04301125A (ja) * | 1991-03-29 | 1992-10-23 | Matsushita Electric Ind Co Ltd | 内燃機関用フィルタ再生装置 |
JPH05141223A (ja) * | 1991-11-15 | 1993-06-08 | Matsushita Electric Ind Co Ltd | 内燃機関用フイルタ再生装置 |
US5458673A (en) * | 1992-11-26 | 1995-10-17 | Nippon Soken, Inc. | Exhaust gas particulate purifying process for internal combustion engine |
JP3598572B2 (ja) * | 1995-04-14 | 2004-12-08 | 株式会社デンソー | 排気微粒子浄化装置 |
DE19853841C2 (de) * | 1998-11-23 | 2001-04-12 | Victor Gheorghiu | Meßsonde und Meßverfahren zur schnellen Erfassung der Partikelkonzentration in strömenden und ruhenden unbrennbaren Gasen |
DE10056015A1 (de) * | 2000-11-11 | 2002-05-16 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung eines Abgasnachbehandlungssystems |
DE10133384A1 (de) * | 2001-07-10 | 2003-01-30 | Bosch Gmbh Robert | Sensor zur Detektion von Teilchen und Verfahren zu dessen Funktionskontrolle |
JP3788283B2 (ja) * | 2001-07-12 | 2006-06-21 | 日産自動車株式会社 | 過給機付ディーゼルエンジンの排気浄化装置 |
US6975967B2 (en) * | 2001-07-31 | 2005-12-13 | Revco Technologies, Inc. | CO2/O2 incubator predictive failure for CO2 and O2 sensors |
JP4022723B2 (ja) * | 2002-01-11 | 2007-12-19 | 株式会社デンソー | 排気フィルタ再生装置及び方法 |
US6976382B2 (en) * | 2002-02-20 | 2005-12-20 | Denso Corporation | Abnormality diagnosing apparatus of exhaust gas sensor |
JP4064148B2 (ja) * | 2002-05-16 | 2008-03-19 | 本田技研工業株式会社 | 素子温を利用して排ガスセンサの故障を検出する装置 |
JP3823923B2 (ja) * | 2003-01-16 | 2006-09-20 | 日産自動車株式会社 | 排気浄化装置 |
US20080046213A1 (en) * | 2006-08-21 | 2008-02-21 | Honeywell International Inc. | Method and System for Detection and Remediation of Sensor Degradation in a Monitoring Device |
-
2002
- 2002-10-15 DE DE10247977A patent/DE10247977A1/de not_active Withdrawn
-
2003
- 2003-06-24 JP JP2004543925A patent/JP4038209B2/ja not_active Expired - Fee Related
- 2003-06-24 DE DE50304245T patent/DE50304245D1/de not_active Expired - Lifetime
- 2003-06-24 WO PCT/DE2003/002097 patent/WO2004036006A1/de active IP Right Grant
- 2003-06-24 US US10/531,168 patent/US7487660B2/en not_active Expired - Fee Related
- 2003-06-24 EP EP03808662A patent/EP1554475B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1554475B1 (de) | 2006-07-12 |
EP1554475A1 (de) | 2005-07-20 |
DE10247977A1 (de) | 2004-04-29 |
JP2006503270A (ja) | 2006-01-26 |
US20060107730A1 (en) | 2006-05-25 |
WO2004036006A1 (de) | 2004-04-29 |
DE50304245D1 (de) | 2006-08-24 |
US7487660B2 (en) | 2009-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4038209B2 (ja) | 粒子検出器の機能性を検査する方法およびシステム | |
CN102421998B (zh) | 用于对布置在内燃机的废气区域中的构件进行监控的方法和装置 | |
CN106224066B (zh) | 颗粒物传感器诊断***和方法 | |
US7771113B2 (en) | Sensor rationality diagnostic | |
CN105723205B (zh) | 用于运行颗粒传感器的方法和装置 | |
JP4424207B2 (ja) | 内燃機関排気浄化装置 | |
US7081154B2 (en) | Device and method for determining a malfunction in a filter | |
JP2009521641A (ja) | シリンダ異常挙動の機内診断 | |
JP2009144577A (ja) | パティキュレートフィルタの故障判定装置 | |
US9863301B2 (en) | Filter fault detection apparatus | |
US8788184B2 (en) | Method and apparatus for the self-diagnosis of an exhaust gas probe | |
JP2015520387A (ja) | 粒子検出センサの機能監視方法及び粒子検出センサ | |
KR20160075640A (ko) | 입자 필터를 모니터링하기 위한 방법 및 장치 | |
JP2014509368A (ja) | 煤センサの機能的能力監視 | |
JPH10252635A (ja) | 故障診断装置付きエンジン燃焼状態検出装置 | |
JPH07218390A (ja) | 可変応答時間を有する平均値フィルタ利用による故障検出システム | |
US20150020507A1 (en) | Particulate filter performance monitoring | |
JP4396477B2 (ja) | 排気浄化装置 | |
US20130204540A1 (en) | Method for conditioning signals for a collecting particle sensor | |
US10132218B2 (en) | Exhaust system for a motor vehicle | |
Sappok et al. | Continuous Particulate Filter State of Health Monitoring Using Radio Frequency Sensing | |
US20190323408A1 (en) | Method For Testing The Functional Soundness Of A Particle Sensor | |
US7698887B2 (en) | Method and apparatus for determining local emissions loading of emissions trap | |
CN110410189A (zh) | 柴油颗粒过滤器的故障诊断方法、装置、车辆及存储介质 | |
Huang | The Effect of Mounting Orientation of Resistive Particulate Matter Sensor on Signal Behavior |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070607 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20071004 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20071102 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101109 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111109 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121109 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131109 Year of fee payment: 6 |
|
LAPS | Cancellation because of no payment of annual fees |