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EP1998032A3 - Method for evaluating the status of an air/fuel mixture - Google Patents

Method for evaluating the status of an air/fuel mixture Download PDF

Info

Publication number
EP1998032A3
EP1998032A3 EP08103645A EP08103645A EP1998032A3 EP 1998032 A3 EP1998032 A3 EP 1998032A3 EP 08103645 A EP08103645 A EP 08103645A EP 08103645 A EP08103645 A EP 08103645A EP 1998032 A3 EP1998032 A3 EP 1998032A3
Authority
EP
European Patent Office
Prior art keywords
evaluating
status
combustion chamber
air
light signal
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
EP08103645A
Other languages
German (de)
French (fr)
Other versions
EP1998032B1 (en
EP1998032A2 (en
Inventor
Ernst Winklhofer
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.)
AVL List GmbH
Original Assignee
AVL List 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 AVL List GmbH filed Critical AVL List GmbH
Publication of EP1998032A2 publication Critical patent/EP1998032A2/en
Publication of EP1998032A3 publication Critical patent/EP1998032A3/en
Application granted granted Critical
Publication of EP1998032B1 publication Critical patent/EP1998032B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/022—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an optical sensor, e.g. in-cylinder light probe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Testing Of Engines (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Control Of Combustion (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

The method involves detecting flame light signal of combustion in a combustion chamber. The detected flame light signal is compared with sample signal which is stored in database and the gaseous mixture state in combustion chamber is estimated. The internal pressure of cylinder is measured simultaneously with the detection of flame light signal while estimating the gaseous mixer state of combustion chamber.
EP08103645A 2007-05-31 2008-04-22 Method for evaluating the status of an air/fuel mixture Active EP1998032B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0085907A AT503276B1 (en) 2007-05-31 2007-05-31 METHOD FOR EVALUATING THE CONDITION OF A FUEL / AIR MIXTURE

Publications (3)

Publication Number Publication Date
EP1998032A2 EP1998032A2 (en) 2008-12-03
EP1998032A3 true EP1998032A3 (en) 2010-01-20
EP1998032B1 EP1998032B1 (en) 2010-12-08

Family

ID=38474491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08103645A Active EP1998032B1 (en) 2007-05-31 2008-04-22 Method for evaluating the status of an air/fuel mixture

Country Status (5)

Country Link
US (1) US8454353B2 (en)
EP (1) EP1998032B1 (en)
JP (1) JP5372409B2 (en)
AT (2) AT503276B1 (en)
DE (1) DE502008001976D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5792435B2 (en) * 2010-05-18 2015-10-14 トヨタ自動車株式会社 In-cylinder state monitoring device and control device for spark ignition internal combustion engine
AT510702B1 (en) 2010-12-01 2012-06-15 Avl List Gmbh METHOD AND DEVICE FOR EVALUATING THE CONDITION OF A FUEL AIR MIXTURE
US8625098B2 (en) 2010-12-17 2014-01-07 General Electric Company System and method for real-time measurement of equivalence ratio of gas fuel mixture
EP3206017B1 (en) * 2016-02-09 2018-09-12 Elster GmbH Sensor and method for determining the air ratio of a combustible gas-air mixture
DE102018115022B4 (en) 2018-06-22 2020-04-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for visualizing a combustion process of a fuel-air mixture
DE102020007364A1 (en) 2020-12-03 2022-06-09 Mercedes-Benz Group AG Device for the optical analysis of flame light and method for determining particle emissions

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219227A (en) * 1990-08-13 1993-06-15 Barrack Technology Limited Method and apparatus for determining burned gas temperature, trapped mass and NOx emissions in an internal combustion engine
DE10066074A1 (en) * 2000-09-04 2002-08-22 Iav Gmbh Method for evaluating combustion with stratified charge in gasoline engines, preferably with direct injection
FR2816056B1 (en) * 2000-11-02 2003-05-16 Centre Nat Rech Scient COMBUSTION WEALTH MEASURING DEVICE AND RELATED ADJUSTMENT METHOD
US20030196630A1 (en) * 2002-04-23 2003-10-23 Eckart Damson Method and arrangement for detecting the end of a start operation in an internal combustion engine of a motor vehicle
AT6753U1 (en) * 2003-07-15 2004-03-25 Avl List Gmbh METHOD FOR OPERATING A DIESEL INTERNAL COMBUSTION ENGINE
JP2005226893A (en) * 2004-02-12 2005-08-25 Kawasaki Heavy Ind Ltd Combustion diagnosing method and combustion diagnosing device

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
GB1483612A (en) 1974-07-05 1977-08-24 Lumenition Ltd Detection of combustion in internal combustion engines
JPS6390643A (en) * 1986-10-03 1988-04-21 Nissan Motor Co Ltd Air-fuel ratio control device for internal combustion engine
JPS63105262A (en) 1986-10-21 1988-05-10 Daihatsu Motor Co Ltd Control of air-fuel ratio in thin-combustion type internal combustion engine
JPS63162952A (en) * 1986-12-26 1988-07-06 Suzuki Motor Co Ltd Combustion state control device for internal combustion engine
US4887574A (en) 1987-04-21 1989-12-19 Hitachi, Ltd. Control apparatus for internal combustion engines
JPH0794808B2 (en) * 1987-06-03 1995-10-11 株式会社日立製作所 Lean burn engine control device and control method
JPH01170742A (en) * 1987-12-24 1989-07-05 Mazda Motor Corp Combustion condition detector of engine
EP0358419A3 (en) * 1988-09-09 1990-08-16 LUCAS INDUSTRIES public limited company Control system for an internal combustion engine
JP2830010B2 (en) * 1989-02-20 1998-12-02 三菱自動車工業株式会社 Engine output control device
JPH0794814B2 (en) * 1989-03-18 1995-10-11 株式会社日立製作所 Engine ignition control device
WO1997031251A1 (en) 1995-02-21 1997-08-28 Optrand, Inc. Fiber optic combustion pressure sensors for engine knock and misfire detection
JPH0734947A (en) * 1993-07-14 1995-02-03 Hitachi Ltd Combustion state diagnostic device for internal combustion engine
JPH07318458A (en) * 1994-05-27 1995-12-08 Unisia Jecs Corp Diagnostic device for cylinder internal pressure sensor
JP3368687B2 (en) * 1994-09-29 2003-01-20 日産自動車株式会社 Air-fuel ratio detection device for internal combustion engine
US5659133A (en) 1996-04-22 1997-08-19 Astropower, Inc. High-temperature optical combustion chamber sensor
US6045353A (en) * 1996-05-29 2000-04-04 American Air Liquide, Inc. Method and apparatus for optical flame control of combustion burners
JP3855481B2 (en) * 1998-08-12 2006-12-13 株式会社日立製作所 Engine diagnostic equipment
JP4026103B2 (en) * 1999-02-19 2007-12-26 株式会社デンソー Fuel injection amount detection device for internal combustion engine
JP2000320369A (en) * 1999-05-10 2000-11-21 Mitsubishi Heavy Ind Ltd Auxiliary chamber fuel gas feed amount controller for auxiliary chamber type gas engine and auxiliary chamber type engine provided with the controller
US6560526B1 (en) * 2000-03-03 2003-05-06 General Motors Corporation Onboard misfire, partial-burn detection and spark-retard control using cylinder pressure sensing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219227A (en) * 1990-08-13 1993-06-15 Barrack Technology Limited Method and apparatus for determining burned gas temperature, trapped mass and NOx emissions in an internal combustion engine
DE10066074A1 (en) * 2000-09-04 2002-08-22 Iav Gmbh Method for evaluating combustion with stratified charge in gasoline engines, preferably with direct injection
FR2816056B1 (en) * 2000-11-02 2003-05-16 Centre Nat Rech Scient COMBUSTION WEALTH MEASURING DEVICE AND RELATED ADJUSTMENT METHOD
US20030196630A1 (en) * 2002-04-23 2003-10-23 Eckart Damson Method and arrangement for detecting the end of a start operation in an internal combustion engine of a motor vehicle
AT6753U1 (en) * 2003-07-15 2004-03-25 Avl List Gmbh METHOD FOR OPERATING A DIESEL INTERNAL COMBUSTION ENGINE
JP2005226893A (en) * 2004-02-12 2005-08-25 Kawasaki Heavy Ind Ltd Combustion diagnosing method and combustion diagnosing device

Also Published As

Publication number Publication date
JP5372409B2 (en) 2013-12-18
JP2008298782A (en) 2008-12-11
DE502008001976D1 (en) 2011-01-20
US20080299505A1 (en) 2008-12-04
ATE491086T1 (en) 2010-12-15
AT503276B1 (en) 2010-06-15
AT503276A2 (en) 2007-09-15
EP1998032B1 (en) 2010-12-08
AT503276A3 (en) 2008-05-15
US8454353B2 (en) 2013-06-04
EP1998032A2 (en) 2008-12-03

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