IN2014DN10097A - - Google Patents

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Publication number
IN2014DN10097A
IN2014DN10097A IN10097DEN2014A IN2014DN10097A IN 2014DN10097 A IN2014DN10097 A IN 2014DN10097A IN 10097DEN2014 A IN10097DEN2014 A IN 10097DEN2014A IN 2014DN10097 A IN2014DN10097 A IN 2014DN10097A
Authority
IN
India
Prior art keywords
bed temperature
fuel injection
increase
catalyst
acquisition unit
Prior art date
Application number
Inventor
Shinya Kondo
Yasuyuki Takama
Koji Aso
Original Assignee
Toyota Motor Co Ltd
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 Toyota Motor Co Ltd filed Critical Toyota Motor Co Ltd
Publication of IN2014DN10097A publication Critical patent/IN2014DN10097A/en

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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
    • 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
    • F01N3/08—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]
    • 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
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1602—Temperature of exhaust gas 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
    • F02D41/021—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
    • F02D2041/0265—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to decrease temperature 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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0802—Temperature of the exhaust gas treatment apparatus
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

A catalyst protection device includes: a catalyst provided in an exhaust system of an internal combustion engine; a bed temperature acquisition unit that acquires a bed temperature for each of a plurality of regions of the catalyst distributed in an exhaust gas flow direction; and a fuel injection unit that determines for each of the regions whether an increase in fuel injection amount is required on the basis of the corresponding bed temperature acquired by the bed temperature acquisition unit, that calculates an increase in fuel injection amount for each region and that injects fuel of an amount including the sum of the calculated increase values.
IN10097DEN2014 2012-06-01 2013-05-30 IN2014DN10097A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012126030A JP5849858B2 (en) 2012-06-01 2012-06-01 Catalyst protection device for internal combustion engine
PCT/IB2013/001200 WO2013179131A1 (en) 2012-06-01 2013-05-30 Catalyst protection device and catalyst protection method for internal combustion engine

Publications (1)

Publication Number Publication Date
IN2014DN10097A true IN2014DN10097A (en) 2015-08-21

Family

ID=48672664

Family Applications (1)

Application Number Title Priority Date Filing Date
IN10097DEN2014 IN2014DN10097A (en) 2012-06-01 2013-05-30

Country Status (7)

Country Link
US (1) US9228465B2 (en)
EP (1) EP2867486B1 (en)
JP (1) JP5849858B2 (en)
CN (1) CN104379892B (en)
IN (1) IN2014DN10097A (en)
RU (1) RU2589585C1 (en)
WO (1) WO2013179131A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6142468B2 (en) 2012-06-01 2017-06-07 トヨタ自動車株式会社 Catalyst protection device for internal combustion engine
CN111140419B (en) * 2019-12-30 2022-04-05 潍柴动力股份有限公司 Protection method and device for three-way catalyst

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545976B1 (en) * 1990-08-28 1994-01-26 Emitec Gesellschaft für Emissionstechnologie mbH Monitoring of the catalytic activity of a catalytic converter through which a catalysable fluid flows
JPH07166918A (en) 1993-12-17 1995-06-27 Toyota Motor Corp Fuel injection controller for internal combustion engine
JP3262157B2 (en) 1997-01-24 2002-03-04 本田技研工業株式会社 Fuel supply control device for internal combustion engine
JPH11324653A (en) * 1998-05-20 1999-11-26 Denso Corp Exhaust emission control device for internal combustion engine
DE19929292A1 (en) 1999-06-25 2000-12-28 Volkswagen Ag Control of the operating condition of motor vehicle internal combustion engine dependent upon the catalyst cell temperature uses set detected threshold levels to vary engine control parameters
JP3810708B2 (en) 2002-05-24 2006-08-16 本田技研工業株式会社 Catalyst temperature estimation device
JP4400356B2 (en) * 2004-07-22 2010-01-20 株式会社デンソー Exhaust gas purification device for internal combustion engine
JP4395120B2 (en) * 2005-10-19 2010-01-06 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
JP4561656B2 (en) * 2006-03-06 2010-10-13 トヨタ自動車株式会社 Catalyst temperature estimation device for internal combustion engine
JP4765757B2 (en) * 2006-05-09 2011-09-07 トヨタ自動車株式会社 Control device for internal combustion engine
JP4779814B2 (en) * 2006-06-09 2011-09-28 トヨタ自動車株式会社 Catalyst representative temperature acquisition device for internal combustion engine
FR2910535B1 (en) * 2006-12-21 2009-09-04 Renault Sas INTERNAL COMBUSTION ENGINE FOR A MOTOR VEHICLE COMPRISING A FILTERING DEVICE AND CORRESPONDING CONTROL METHOD
JP2008223679A (en) 2007-03-14 2008-09-25 Toyota Motor Corp Exhaust emission control device for internal combustion engine
EP2224109B1 (en) * 2009-02-26 2019-01-16 Toyota Jidosha Kabushiki Kaisha Controller for internal combustion engine
JP5464023B2 (en) * 2010-04-08 2014-04-09 トヨタ自動車株式会社 Fuel injection control device
JP5609349B2 (en) * 2010-07-13 2014-10-22 トヨタ自動車株式会社 Catalyst overheat prevention device
JP5091988B2 (en) * 2010-08-02 2012-12-05 本田技研工業株式会社 Exhaust gas purification system for internal combustion engine
JP6142468B2 (en) 2012-06-01 2017-06-07 トヨタ自動車株式会社 Catalyst protection device for internal combustion engine

Also Published As

Publication number Publication date
RU2589585C1 (en) 2016-07-10
WO2013179131A1 (en) 2013-12-05
EP2867486A1 (en) 2015-05-06
JP5849858B2 (en) 2016-02-03
EP2867486B1 (en) 2017-06-21
US20150135682A1 (en) 2015-05-21
CN104379892A (en) 2015-02-25
CN104379892B (en) 2017-02-22
JP2013249793A (en) 2013-12-12
US9228465B2 (en) 2016-01-05

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