EP2556227A1 - Dispositif et procede de detection d'etat de capteur dans systeme d'echappement de vehicule automobile - Google Patents

Dispositif et procede de detection d'etat de capteur dans systeme d'echappement de vehicule automobile

Info

Publication number
EP2556227A1
EP2556227A1 EP11766236A EP11766236A EP2556227A1 EP 2556227 A1 EP2556227 A1 EP 2556227A1 EP 11766236 A EP11766236 A EP 11766236A EP 11766236 A EP11766236 A EP 11766236A EP 2556227 A1 EP2556227 A1 EP 2556227A1
Authority
EP
European Patent Office
Prior art keywords
gas concentration
determining
sensor
engine
difference
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.)
Withdrawn
Application number
EP11766236A
Other languages
German (de)
English (en)
Other versions
EP2556227A4 (fr
Inventor
Mikael LUNDSTRÖM
Anders Granberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scania CV AB
Original Assignee
Scania CV AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scania CV AB filed Critical Scania CV AB
Publication of EP2556227A1 publication Critical patent/EP2556227A1/fr
Publication of EP2556227A4 publication Critical patent/EP2556227A4/fr
Withdrawn legal-status Critical Current

Links

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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • 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
    • F02D41/146—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 an NOx content or concentration
    • F02D41/1461—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 an NOx content or concentration of the exhaust gases emitted by the engine
    • 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
    • F02D41/146—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 an NOx content or concentration
    • F02D41/1463—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 an NOx content or concentration of the exhaust gases downstream of exhaust gas treatment apparatus
    • 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
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/14—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics having more than one sensor of one kind
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1402—Exhaust gas composition
    • 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
    • F02D41/146—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 an NOx content or concentration
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using 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
    • Y02T10/12—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

Abstract

L'invention concerne un procédé de détermination d'un état d'au moins un capteur (240 ; 270) d'un véhicule automobile (100 ; 112) qui possède un moteur (230) et un système d'échappement possédant un catalyseur (260). Le procédé comporte les étapes suivantes : - l'altération d'une concentration de gaz NOx en aval du moteur (230) par la commande du fonctionnement du moteur (230) d'une façon prédéterminée ; - la détermination d'une différence dans une première concentration de gaz NOx en amont dudit catalyseur (260) ; - la détermination d'une différence dans une deuxième concentration de gaz NOx en aval dudit catalyseur, et - la détermination d'un état d'au moins un capteur (240 ; 270) sur la base de ladite différence dans la première concentration de gaz NOx et de ladite différence dans la deuxième concentration de gaz NOx. L'invention concerne également un produit programme d'ordinateur qui comporte un code de programme (P) pour un ordinateur (200 ; 210) afin de mettre en œuvre un procédé selon l'invention. L'invention concerne également un dispositif pour déterminer un état d'un capteur d'un véhicule automobile et un véhicule automobile qui est équipé du dispositif.
EP11766236.1A 2010-04-08 2011-03-30 Dispositif et procede de detection d'etat de capteur dans systeme d'echappement de vehicule automobile Withdrawn EP2556227A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1050343A SE535748C2 (sv) 2010-04-08 2010-04-08 Anordning och förfarande för att detektera ett tillstånd hos en NOx-sensor hos ett motorfordon
PCT/SE2011/050360 WO2011126429A1 (fr) 2010-04-08 2011-03-30 Dispositif et procédé de détection d'état de capteur dans système d'échappement de véhicule automobile

Publications (2)

Publication Number Publication Date
EP2556227A1 true EP2556227A1 (fr) 2013-02-13
EP2556227A4 EP2556227A4 (fr) 2018-03-21

Family

ID=44763161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11766236.1A Withdrawn EP2556227A4 (fr) 2010-04-08 2011-03-30 Dispositif et procede de detection d'etat de capteur dans systeme d'echappement de vehicule automobile

Country Status (4)

Country Link
EP (1) EP2556227A4 (fr)
BR (1) BR112012025542A2 (fr)
SE (1) SE535748C2 (fr)
WO (1) WO2011126429A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9388728B2 (en) * 2013-06-10 2016-07-12 Cummins Emission Solutions, Inc. Systems and methods for NOx sensor diagnostics
EP4080024A1 (fr) 2021-04-22 2022-10-26 Volvo Truck Corporation Procédé de détection d'une anomalie de capteur
EP4187066A1 (fr) 2021-11-30 2023-05-31 Volvo Truck Corporation Procédé et système d'analyse de capteur dans un système de post-traitement des gaz d'échappement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074833A1 (fr) * 1997-03-21 2001-02-07 Ngk Spark Plug Co., Ltd Procédé et appareil de mesure de la concentration d'oxydes d'azote
DE19911664A1 (de) * 1999-03-16 2000-09-21 Volkswagen Ag Kalibrierung eines NOx-Sensors
DE10062289A1 (de) * 2000-12-14 2002-07-04 Siemens Ag Verfahren zur Diagnose eines NOx-Sensors im Abgastrakt einer Brennkraftmaschine
US6453663B1 (en) * 2001-08-16 2002-09-24 Ford Global Technologies, Inc NOx sensor monitoring
JP2003120399A (ja) * 2001-10-09 2003-04-23 Toyota Motor Corp ＮＯｘセンサ異常検出装置
DE10310954A1 (de) * 2003-03-13 2004-09-23 Robert Bosch Gmbh Verfahren zur Diagnose eines NOx-Sensors
US6925796B2 (en) * 2003-11-19 2005-08-09 Ford Global Technologies, Llc Diagnosis of a urea SCR catalytic system
JP4475271B2 (ja) 2006-11-28 2010-06-09 トヨタ自動車株式会社 ＮＯｘセンサの異常診断装置及び異常診断方法
JP4537417B2 (ja) * 2007-03-06 2010-09-01 トヨタ自動車株式会社 ＮＯｘセンサの異常診断装置
JP4661814B2 (ja) 2007-03-29 2011-03-30 トヨタ自動車株式会社 内燃機関の排気浄化装置
KR100957138B1 (ko) * 2007-07-09 2010-05-11 현대자동차주식회사 질소산화물 센서 고장 판단 방법 및 이를 수행하는 선택적환원 촉매 시스템
JP2009162181A (ja) 2008-01-09 2009-07-23 Denso Corp ＮＯｘセンサ診断装置およびそれを用いた排気浄化システム
JP4539740B2 (ja) * 2008-03-12 2010-09-08 株式会社デンソー ＮＯｘセンサ異常検出装置およびそれを用いた排気浄化システム
EP2278144B1 (fr) * 2008-05-21 2018-07-18 Toyota Jidosha Kabushiki Kaisha APPAREIL ET PROCÉDÉ DE DIAGNOSTIC D'ANOMALIE DE CAPTEUR DE NOx

Non-Patent Citations (1)

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Title
See references of WO2011126429A1 *

Also Published As

Publication number Publication date
WO2011126429A1 (fr) 2011-10-13
SE1050343A1 (sv) 2011-10-09
BR112012025542A2 (pt) 2020-08-18
SE535748C2 (sv) 2012-12-04
EP2556227A4 (fr) 2018-03-21

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