EP2619432A1 - Procédé et dispositif de surveillance du fonctionnement d'un capteur de gaz d'échappement - Google Patents

Procédé et dispositif de surveillance du fonctionnement d'un capteur de gaz d'échappement

Info

Publication number
EP2619432A1
EP2619432A1 EP11760736.6A EP11760736A EP2619432A1 EP 2619432 A1 EP2619432 A1 EP 2619432A1 EP 11760736 A EP11760736 A EP 11760736A EP 2619432 A1 EP2619432 A1 EP 2619432A1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
gas sensor
combustion engine
internal combustion
operating point
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.)
Granted
Application number
EP11760736.6A
Other languages
German (de)
English (en)
Other versions
EP2619432B1 (fr
Inventor
Thomas Steinert
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2619432A1 publication Critical patent/EP2619432A1/fr
Application granted granted Critical
Publication of EP2619432B1 publication Critical patent/EP2619432B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F02D41/02—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
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2474—Characteristics of sensors
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off

Definitions

  • the second operating point can be unambiguously specified by the fact that the second operating point of the internal combustion engine by a speed or an injection quantity or an air mass or an exhaust gas recirculation state considered individually or in combination of the sizes.
  • the method and the device can preferably be used for monitoring a lambda probe.
  • FIG. 2 shows a second flow chart of a second program sequence for monitoring the function of the exhaust gas sensor designed as a broadband lambda probe in the technical environment described for FIG.
  • This second program sequence is also stored in the control unit.
  • the second program sequence is activated if the learning values for the second operating point are determined by the first program sequence described in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne un procédé de surveillance du fonctionnement d'un capteur de gaz d'échappement dans le collecteur d'échappement d'un moteur à combustion interne. Selon l'invention, un premier contrôle du fonctionnement du capteur de gaz d'échappement est effectué en un premier point de fonctionnement du moteur à combustion; si le capteur de gaz d'échappement est intact, le signal de sortie du capteur de gaz d'échappement ou une grandeur caractéristique qui en est dérivée est déterminé en au moins un second point de fonctionnement du moteur à combustion interne et mémorisé en tant que valeur d'apprentissage, et la surveillance du fonctionnement du capteur de gaz d'échappement s'effectue pendant un fonctionnement ultérieur du moteur à combustion interne au second point de fonctionnement par la comparaison du signal de sortie du capteur de gaz d'échappement ou de la grandeur caractéristique qui en est dérivée avec la valeur d'apprentissage. L'invention concerne par ailleurs un dispositif correspondant permettant la mise en œuvre du procédé selon l'invention. Le procédé et le dispositif selon l'invention permettent de surveiller le fonctionnement de capteurs de gaz d'échappement même lorsque le moteur à combustion interne ne fonctionne plus ou ne fonctionne que rarement aux points de fonctionnement appropriés pour la surveillance des capteurs de gaz d'échappement.
EP11760736.6A 2010-09-24 2011-09-07 Procédé et dispositif de surveillance du fonctionnement d'un capteur de gaz d'échappement Not-in-force EP2619432B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010041311A DE102010041311A1 (de) 2010-09-24 2010-09-24 Verfahren und Vorrichtung zur Überwachung der Funktion eines Abgassensors
PCT/EP2011/065467 WO2012038256A1 (fr) 2010-09-24 2011-09-07 Procédé et dispositif de surveillance du fonctionnement d'un capteur de gaz d'échappement

Publications (2)

Publication Number Publication Date
EP2619432A1 true EP2619432A1 (fr) 2013-07-31
EP2619432B1 EP2619432B1 (fr) 2015-06-03

Family

ID=44675558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11760736.6A Not-in-force EP2619432B1 (fr) 2010-09-24 2011-09-07 Procédé et dispositif de surveillance du fonctionnement d'un capteur de gaz d'échappement

Country Status (6)

Country Link
US (1) US9494073B2 (fr)
EP (1) EP2619432B1 (fr)
JP (1) JP5432422B2 (fr)
CN (1) CN103109066B (fr)
DE (1) DE102010041311A1 (fr)
WO (1) WO2012038256A1 (fr)

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DE102013201316A1 (de) 2012-02-06 2013-08-08 Robert Bosch Gmbh Verfahren zur Kalibrierung von Abgas-Sonden und Kraftstoffdosiereinrichtungen
JP6090092B2 (ja) * 2013-10-01 2017-03-08 トヨタ自動車株式会社 空燃比センサの異常診断装置
WO2016098227A1 (fr) * 2014-12-18 2016-06-23 三菱自動車工業株式会社 Dispositif de détermination de dysfonctionnement pour véhicule hybride
US9657674B2 (en) * 2015-03-06 2017-05-23 Ford Global Technologies, Llc Method and system for determining air-fuel ratio imbalance
DE102016125196A1 (de) * 2016-12-21 2018-06-21 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Verfahren zur Entgleisungsdetektion anhand von Raddrehzahlsignalen
CN107023367B (zh) * 2017-03-29 2019-04-12 北京航空航天大学 一种柴油机scr系统氨气输入传感器故障诊断和容错控制方法
CN108798849B (zh) * 2017-04-26 2021-01-19 上汽通用汽车有限公司 车辆催化器怠速诊断系统和方法
US11346264B2 (en) * 2019-08-29 2022-05-31 Cummins Emission Solutions Inc. Systems and methods for controlling exhaust gas aftertreatment sensor systems

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JPS62250351A (ja) 1986-04-23 1987-10-31 Honda Motor Co Ltd 内燃エンジンの排気ガス濃度センサの異常検出方法
JP3227153B2 (ja) * 1990-09-05 2001-11-12 本田技研工業株式会社 内燃エンジンのｈｃセンサの劣化検出装置
JP2893308B2 (ja) * 1993-07-26 1999-05-17 株式会社ユニシアジェックス 内燃機関の空燃比制御装置
JP2858288B2 (ja) * 1993-09-02 1999-02-17 株式会社ユニシアジェックス 内燃機関の空燃比制御装置における自己診断装置
DE4335700A1 (de) * 1993-10-20 1995-04-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Funktionsüberwachung eines Sensors
JPH08177575A (ja) * 1994-12-28 1996-07-09 Nippondenso Co Ltd 内燃機関の空燃比制御装置の自己診断装置
FR2769985B1 (fr) * 1997-10-17 1999-12-31 Renault Procede et systeme de surveillance du fonctionnement et du vieillissement d'un capteur a oxygene lineaire
JP3500976B2 (ja) * 1998-08-06 2004-02-23 株式会社デンソー ガス濃度センサの異常診断装置
DE60208522T2 (de) * 2001-02-26 2006-09-21 Mitsubishi Jidosha Kogyo K.K. Abgasreiniger für brennkraftmaschinen
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Also Published As

Publication number Publication date
WO2012038256A1 (fr) 2012-03-29
JP5432422B2 (ja) 2014-03-05
CN103109066B (zh) 2015-11-25
DE102010041311A1 (de) 2012-03-29
US9494073B2 (en) 2016-11-15
US20130269316A1 (en) 2013-10-17
CN103109066A (zh) 2013-05-15
JP2013537952A (ja) 2013-10-07
EP2619432B1 (fr) 2015-06-03

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