CA2168059A1 - Air-Fuel Ratio Control System - Google Patents

Air-Fuel Ratio Control System

Info

Publication number
CA2168059A1
CA2168059A1 CA2168059A CA2168059A CA2168059A1 CA 2168059 A1 CA2168059 A1 CA 2168059A1 CA 2168059 A CA2168059 A CA 2168059A CA 2168059 A CA2168059 A CA 2168059A CA 2168059 A1 CA2168059 A1 CA 2168059A1
Authority
CA
Canada
Prior art keywords
air
fuel ratio
fuel
amount
data
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
CA2168059A
Other languages
French (fr)
Other versions
CA2168059C (en
Inventor
Akira Ishida
Masuo Takigawa
Tatsuya Nakamura
Norihiro Fujioka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP01173895A external-priority patent/JP3301250B2/en
Priority claimed from JP25598595A external-priority patent/JP3508328B2/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CA2168059A1 publication Critical patent/CA2168059A1/en
Application granted granted Critical
Publication of CA2168059C publication Critical patent/CA2168059C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02D41/1444—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
    • F02D41/1458—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 determination means using an estimation
    • 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
    • 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
    • F02D41/047—Taking into account fuel evaporation or wall wetting
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D41/1405—Neural network control
    • 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
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/0265—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric the criterion being a learning criterion
    • G05B13/027—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric the criterion being a learning criterion using neural networks only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1415—Controller structures or design using a state feedback or a state space representation
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1422—Variable gain or coefficients
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1426—Controller structures or design taking into account control stability
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/143—Controller structures or design the control loop including a non-linear model or compensator
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1431—Controller structures or design the system including an input-output delay
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/12—Timing of calculation, i.e. specific timing aspects when calculation or updating of engine parameter is performed
    • 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

Abstract

An air-fuel ratio control system which calculates a basic injection amount of fuel by state detecting sensors each of which detects an operating state of an internal combustion engine, air-amount detecting sensors each of which detects an intake air amount, an air-fuel ratio sensor, and a predetermined data group. Further, the air-fuel ratio control system stores past amount data of injected fuel and air-fuel ratio data at each control cycle. A neuro-computation unit reads values of the data detected by the sensors and the stored data to obtain an air-fuel ratio estimate to calculate a correction injection amount of fuel by a neural network of a forward neuro-computing unit, which has learned beforehand about relations of the injected fuel amount, the detected air-fuel ratio, parameters, and dead time.
CA002168059A 1995-01-27 1996-01-25 Air-fuel ratio control system Expired - Fee Related CA2168059C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JPP07-011738 1995-01-27
JP01173895A JP3301250B2 (en) 1995-01-27 1995-01-27 Air-fuel ratio control device
JPP07-255985 1995-10-03
JP25598595A JP3508328B2 (en) 1995-10-03 1995-10-03 Air-fuel ratio control device

Publications (2)

Publication Number Publication Date
CA2168059A1 true CA2168059A1 (en) 1996-07-28
CA2168059C CA2168059C (en) 1999-08-17

Family

ID=26347246

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002168059A Expired - Fee Related CA2168059C (en) 1995-01-27 1996-01-25 Air-fuel ratio control system

Country Status (5)

Country Link
US (1) US5657737A (en)
EP (1) EP0724073B1 (en)
KR (1) KR0160396B1 (en)
CA (1) CA2168059C (en)
DE (1) DE69635429T2 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN113464289A (en) * 2021-06-21 2021-10-01 中国科学院数学与系统科学研究院 Air-fuel ratio control method for electronic fuel injection engine

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JPH09202131A (en) * 1996-01-24 1997-08-05 Fuji Heavy Ind Ltd Device for preventing fuel odor from infiltrating into cabin
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GB2315133A (en) * 1996-07-08 1998-01-21 Richard Nigel Bushell Control system for internal combustion engine
JP3610682B2 (en) * 1996-07-24 2005-01-19 トヨタ自動車株式会社 Evaporative fuel processing device for internal combustion engine
JP3825845B2 (en) * 1996-09-27 2006-09-27 ヤマハ発動機株式会社 Evolutionary control method
US6032139A (en) * 1996-09-27 2000-02-29 Yamaha Hatsudoki Kabushiki Kaisha Electronic controller using genetic evolution techniques suitable for controlling a motor
DE19741973C1 (en) * 1997-09-23 1999-04-22 Daimler Chrysler Ag Method of determining the soot conc. of self-igniting internal combustion engines
BR9812867A (en) * 1997-10-07 2000-08-08 Siemens Ag Device process for monitoring an internal combustion engine
JPH11231907A (en) 1998-02-12 1999-08-27 Yamaha Motor Co Ltd Method for learning prediction in feedforward control using learnable control logic
US6122589A (en) * 1998-04-09 2000-09-19 Yamah Hatsudoki Kabushiki Kaisha Fuel injection control system for engine
US6678640B2 (en) * 1998-06-10 2004-01-13 Matsushita Electric Industrial Co., Ltd. Method and apparatus for parameter estimation, parameter estimation control and learning control
JP2000018105A (en) * 1998-07-07 2000-01-18 Nissan Motor Co Ltd Internal combustion engine control
JP3773684B2 (en) * 1999-02-09 2006-05-10 本田技研工業株式会社 Air-fuel ratio control device for internal combustion engine
US6708681B2 (en) * 2000-07-07 2004-03-23 Unisia Jecs Corporation Method and device for feedback controlling air-fuel ratio of internal combustion engine
DE10113538B4 (en) * 2001-03-20 2012-03-01 Bayerische Motoren Werke Aktiengesellschaft Regulating device and control method
US6523531B1 (en) * 2001-12-03 2003-02-25 Ford Global Technologies, Inc. Feed forward method for canister purge compensation within engine air/fuel ratio control systems having fuel vapor recovery
ITTO20020143A1 (en) * 2002-02-19 2003-08-19 Fiat Ricerche METHOD AND INJECTION CONTROL DEVICE IN AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR A DIESEL ENGINE EQUIPPED WITH A SYSTEM
US7181334B2 (en) * 2003-05-14 2007-02-20 General Motors Corporation Method and apparatus to diagnose intake airflow
FR2867519B1 (en) * 2003-12-10 2008-02-22 Renault Sas MOTOR CONTROL DEVICE COMPRISING A NEURON NETWORK
FR2867232B1 (en) * 2004-03-05 2006-05-05 Inst Francais Du Petrole METHOD OF ESTIMATING FUEL WEALTH IN A CYLINDER OF A COMBUSTION ENGINE
US7134429B2 (en) * 2004-03-05 2006-11-14 Robert Bosch Gmbh Method and device for controlling an internal combustion engine
EP1640195A3 (en) * 2004-09-27 2007-02-07 Sanden Corporation Control device
DE102004057210B4 (en) * 2004-11-26 2011-12-22 Continental Automotive Gmbh Method for controlling a tank ventilation
FR2886345B1 (en) * 2005-05-30 2010-08-27 Inst Francais Du Petrole METHOD OF ESTIMATING AN ADAPTIVE NON-LINEAR FILTER OF WEALTH IN A CYLINDER OF A COMBUSTION ENGINE
FR2886346B1 (en) 2005-05-30 2010-08-27 Inst Francais Du Petrole METHOD OF ESTIMATING EXTENDED KALMAN FILTER OF WEALTH IN A CYLINDER OF A COMBUSTION ENGINE
US20110010075A1 (en) * 2009-07-10 2011-01-13 Noah Rogers Method, apparatus, and system to measure, record, and control exhaust products from an ice
JP5395698B2 (en) * 2010-02-12 2014-01-22 本田技研工業株式会社 General-purpose engine air-fuel ratio control device
JP5624357B2 (en) * 2010-04-30 2014-11-12 株式会社ニッキ Electronic governor system and control device therefor
CN103119275B (en) * 2010-09-23 2015-11-25 丰田自动车株式会社 The control gear of internal-combustion engine
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US9015093B1 (en) 2010-10-26 2015-04-21 Michael Lamport Commons Intelligent control with hierarchical stacked neural networks
JP4975158B2 (en) * 2010-11-08 2012-07-11 本田技研工業株式会社 Plant control equipment
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JP6501018B1 (en) * 2018-04-20 2019-04-17 トヨタ自動車株式会社 Machine learning device for unburned fuel
JP6690757B1 (en) * 2019-04-16 2020-04-28 トヨタ自動車株式会社 Abnormality detector for fuel vapor emission prevention system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113464289A (en) * 2021-06-21 2021-10-01 中国科学院数学与系统科学研究院 Air-fuel ratio control method for electronic fuel injection engine
CN113464289B (en) * 2021-06-21 2022-05-24 中国科学院数学与系统科学研究院 Air-fuel ratio control method for electronic fuel injection engine

Also Published As

Publication number Publication date
EP0724073A2 (en) 1996-07-31
EP0724073B1 (en) 2005-11-16
EP0724073A3 (en) 1998-09-30
DE69635429T2 (en) 2006-08-03
KR960029602A (en) 1996-08-17
US5657737A (en) 1997-08-19
CA2168059C (en) 1999-08-17
KR0160396B1 (en) 1999-01-15
DE69635429D1 (en) 2005-12-22

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