JPS6383415U - - Google Patents

Info

Publication number
JPS6383415U
JPS6383415U JP1986179042U JP17904286U JPS6383415U JP S6383415 U JPS6383415 U JP S6383415U JP 1986179042 U JP1986179042 U JP 1986179042U JP 17904286 U JP17904286 U JP 17904286U JP S6383415 U JPS6383415 U JP S6383415U
Authority
JP
Japan
Prior art keywords
sensor
way catalyst
air
detection device
deterioration detection
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.)
Pending
Application number
JP1986179042U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP1986179042U priority Critical patent/JPS6383415U/ja
Priority to US07/121,455 priority patent/US4884066A/en
Publication of JPS6383415U publication Critical patent/JPS6383415U/ja
Pending legal-status Critical Current

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
    • F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • F02D41/1441—Plural sensors
    • 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
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • 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
    • 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
    • F02D41/1454—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 oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—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 oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)
JP1986179042U 1986-11-20 1986-11-20 Pending JPS6383415U (US06815460-20041109-C00097.png)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1986179042U JPS6383415U (US06815460-20041109-C00097.png) 1986-11-20 1986-11-20
US07/121,455 US4884066A (en) 1986-11-20 1987-11-17 Deterioration detector system for catalyst in use for emission gas purifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986179042U JPS6383415U (US06815460-20041109-C00097.png) 1986-11-20 1986-11-20

Publications (1)

Publication Number Publication Date
JPS6383415U true JPS6383415U (US06815460-20041109-C00097.png) 1988-06-01

Family

ID=16059103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986179042U Pending JPS6383415U (US06815460-20041109-C00097.png) 1986-11-20 1986-11-20

Country Status (2)

Country Link
US (1) US4884066A (US06815460-20041109-C00097.png)
JP (1) JPS6383415U (US06815460-20041109-C00097.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780551A1 (en) 1995-12-18 1997-06-25 Ngk Insulators, Ltd. Method for detection of performance reduction of exhaust gas purification catalyst

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DE4009901A1 (de) * 1990-03-28 1991-10-02 Bosch Gmbh Robert Verfahren und vorrichtung zur ueberwachung des konvertierungsgrades eines katalysators im abgassystem einer brennkraftmaschine
JP2984312B2 (ja) * 1990-04-11 1999-11-29 日本特殊陶業株式会社 空燃比センサによる触媒の浄化率測定方法及びその劣化時期検知方法
US5357750A (en) * 1990-04-12 1994-10-25 Ngk Spark Plug Co., Ltd. Method for detecting deterioration of catalyst and measuring conversion efficiency thereof with an air/fuel ratio sensor
JP2600987B2 (ja) * 1990-07-09 1997-04-16 日産自動車株式会社 空燃比制御装置の診断装置
DE4024210C2 (de) * 1990-07-31 1999-09-02 Bosch Gmbh Robert Verfahren zur Lambdaregelung einer Brennkraftmaschine mit Katalysator
JP2705039B2 (ja) * 1990-08-28 1998-01-26 本田技研工業株式会社 内燃エンジンの三元触媒の劣化検出装置
US5363091A (en) * 1991-08-07 1994-11-08 Ford Motor Company Catalyst monitoring using ego sensors
US5268086A (en) * 1991-08-07 1993-12-07 Ford Motor Company Catalyst monitoring using ego sensors
US5177464A (en) * 1991-09-04 1993-01-05 Ford Motor Company Catalyst monitoring using a hydrocarbon sensor
US5408215A (en) * 1991-09-04 1995-04-18 Ford Motor Company Catalyst monitoring using a hydrocarbon sensor
JP3179920B2 (ja) * 1993-02-12 2001-06-25 株式会社日立製作所 内燃機関の触媒診断装置
JPH07225203A (ja) * 1994-02-15 1995-08-22 Mitsubishi Electric Corp 触媒コンバータの劣化検出装置
IT1273044B (it) * 1994-07-19 1997-07-01 Weber Srl Sistema elettronico di controllo titolo della miscela aria benzina alimentata ad un motore a combustione interna
IT1273045B (it) * 1994-07-19 1997-07-01 Weber Srl Sistema elettronico di controllo titolo della miscela aria benzina alimentante un motore a combustione interna.
DE19540673C2 (de) * 1995-10-31 1997-08-28 Siemens Ag Verfahren zur Überprüfung der Funktionsfähigkeit eines Katalysators mit einem Sauerstoffsensor
US5857163A (en) * 1995-12-12 1999-01-05 General Motors Corporation Adaptive engine control responsive to catalyst deterioration estimation
US6860100B1 (en) 2000-03-17 2005-03-01 Ford Global Technologies, Llc Degradation detection method for an engine having a NOx sensor
US6308515B1 (en) 2000-03-17 2001-10-30 Ford Global Technologies, Inc. Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent
US6434930B1 (en) 2000-03-17 2002-08-20 Ford Global Technologies, Inc. Method and apparatus for controlling lean operation of an internal combustion engine
US6810659B1 (en) * 2000-03-17 2004-11-02 Ford Global Technologies, Llc Method for determining emission control system operability
US6360530B1 (en) 2000-03-17 2002-03-26 Ford Global Technologies, Inc. Method and apparatus for measuring lean-burn engine emissions
US6327847B1 (en) 2000-03-17 2001-12-11 Ford Global Technologies, Inc. Method for improved performance of a vehicle
US6374597B1 (en) 2000-03-17 2002-04-23 Ford Global Technologies, Inc. Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent
US6629453B1 (en) 2000-03-17 2003-10-07 Ford Global Technologies, Llc Method and apparatus for measuring the performance of an emissions control device
US6477832B1 (en) 2000-03-17 2002-11-12 Ford Global Technologies, Inc. Method for improved performance of a vehicle having an internal combustion engine
US6499293B1 (en) 2000-03-17 2002-12-31 Ford Global Technologies, Inc. Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine
US6438944B1 (en) 2000-03-17 2002-08-27 Ford Global Technologies, Inc. Method and apparatus for optimizing purge fuel for purging emissions control device
US6427437B1 (en) 2000-03-17 2002-08-06 Ford Global Technologies, Inc. Method for improved performance of an engine emission control system
US6843051B1 (en) 2000-03-17 2005-01-18 Ford Global Technologies, Llc Method and apparatus for controlling lean-burn engine to purge trap of stored NOx
US6487849B1 (en) 2000-03-17 2002-12-03 Ford Global Technologies, Inc. Method and apparatus for controlling lean-burn engine based upon predicted performance impact and trap efficiency
US6481199B1 (en) 2000-03-17 2002-11-19 Ford Global Technologies, Inc. Control for improved vehicle performance
US6308697B1 (en) 2000-03-17 2001-10-30 Ford Global Technologies, Inc. Method for improved air-fuel ratio control in engines
US6594989B1 (en) 2000-03-17 2003-07-22 Ford Global Technologies, Llc Method and apparatus for enhancing fuel economy of a lean burn internal combustion engine
US6487850B1 (en) 2000-03-17 2002-12-03 Ford Global Technologies, Inc. Method for improved engine control
US6539704B1 (en) 2000-03-17 2003-04-01 Ford Global Technologies, Inc. Method for improved vehicle performance
US6708483B1 (en) 2000-03-17 2004-03-23 Ford Global Technologies, Llc Method and apparatus for controlling lean-burn engine based upon predicted performance impact
US6370868B1 (en) 2000-04-04 2002-04-16 Ford Global Technologies, Inc. Method and system for purge cycle management of a lean NOx trap
US6389803B1 (en) 2000-08-02 2002-05-21 Ford Global Technologies, Inc. Emission control for improved vehicle performance
US6691507B1 (en) 2000-10-16 2004-02-17 Ford Global Technologies, Llc Closed-loop temperature control for an emission control device
US6463733B1 (en) 2001-06-19 2002-10-15 Ford Global Technologies, Inc. Method and system for optimizing open-loop fill and purge times for an emission control device
US6467259B1 (en) 2001-06-19 2002-10-22 Ford Global Technologies, Inc. Method and system for operating dual-exhaust engine
US6650991B2 (en) 2001-06-19 2003-11-18 Ford Global Technologies, Llc Closed-loop method and system for purging a vehicle emission control
US6694244B2 (en) 2001-06-19 2004-02-17 Ford Global Technologies, Llc Method for quantifying oxygen stored in a vehicle emission control device
US6546718B2 (en) 2001-06-19 2003-04-15 Ford Global Technologies, Inc. Method and system for reducing vehicle emissions using a sensor downstream of an emission control device
US6490860B1 (en) 2001-06-19 2002-12-10 Ford Global Technologies, Inc. Open-loop method and system for controlling the storage and release cycles of an emission control device
US6539706B2 (en) 2001-06-19 2003-04-01 Ford Global Technologies, Inc. Method and system for preconditioning an emission control device for operation about stoichiometry
US6691020B2 (en) 2001-06-19 2004-02-10 Ford Global Technologies, Llc Method and system for optimizing purge of exhaust gas constituent stored in an emission control device
US6502387B1 (en) 2001-06-19 2003-01-07 Ford Global Technologies, Inc. Method and system for controlling storage and release of exhaust gas constituents in an emission control device
US6615577B2 (en) 2001-06-19 2003-09-09 Ford Global Technologies, Llc Method and system for controlling a regeneration cycle of an emission control device
US6453666B1 (en) 2001-06-19 2002-09-24 Ford Global Technologies, Inc. Method and system for reducing vehicle tailpipe emissions when operating lean
US6553754B2 (en) 2001-06-19 2003-04-29 Ford Global Technologies, Inc. Method and system for controlling an emission control device based on depletion of device storage capacity
US6487853B1 (en) 2001-06-19 2002-12-03 Ford Global Technologies. Inc. Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor
US6604504B2 (en) 2001-06-19 2003-08-12 Ford Global Technologies, Llc Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine
US6769398B2 (en) 2002-06-04 2004-08-03 Ford Global Technologies, Llc Idle speed control for lean burn engine with variable-displacement-like characteristic
US6745747B2 (en) 2002-06-04 2004-06-08 Ford Global Technologies, Llc Method for air-fuel ratio control of a lean burn engine
US6868827B2 (en) 2002-06-04 2005-03-22 Ford Global Technologies, Llc Method for controlling transitions between operating modes of an engine for rapid heating of an emission control device
US6568177B1 (en) 2002-06-04 2003-05-27 Ford Global Technologies, Llc Method for rapid catalyst heating
US6758185B2 (en) 2002-06-04 2004-07-06 Ford Global Technologies, Llc Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics
US6735938B2 (en) 2002-06-04 2004-05-18 Ford Global Technologies, Llc Method to control transitions between modes of operation of an engine
US6736120B2 (en) 2002-06-04 2004-05-18 Ford Global Technologies, Llc Method and system of adaptive learning for engine exhaust gas sensors
US7168239B2 (en) 2002-06-04 2007-01-30 Ford Global Technologies, Llc Method and system for rapid heating of an emission control device
US7032572B2 (en) 2002-06-04 2006-04-25 Ford Global Technologies, Llc Method for controlling an engine to obtain rapid catalyst heating
US6725830B2 (en) 2002-06-04 2004-04-27 Ford Global Technologies, Llc Method for split ignition timing for idle speed control of an engine
US7111450B2 (en) 2002-06-04 2006-09-26 Ford Global Technologies, Llc Method for controlling the temperature of an emission control device
US6925982B2 (en) 2002-06-04 2005-08-09 Ford Global Technologies, Llc Overall scheduling of a lean burn engine system
US6736121B2 (en) 2002-06-04 2004-05-18 Ford Global Technologies, Llc Method for air-fuel ratio sensor diagnosis
US6715462B2 (en) 2002-06-04 2004-04-06 Ford Global Technologies, Llc Method to control fuel vapor purging
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Citations (1)

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Publication number Priority date Publication date Assignee Title
JPS49109721A (US06815460-20041109-C00097.png) * 1973-01-31 1974-10-18

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DE2444334A1 (de) * 1974-09-17 1976-03-25 Bosch Gmbh Robert Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktoren
JPS5395431A (en) * 1977-02-01 1978-08-21 Toyota Motor Corp Trouble alarm device for air fuel ratio detector
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780551A1 (en) 1995-12-18 1997-06-25 Ngk Insulators, Ltd. Method for detection of performance reduction of exhaust gas purification catalyst

Also Published As

Publication number Publication date
US4884066A (en) 1989-11-28

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