KR920701637A - 연료혼합율 검출방법 - Google Patents

연료혼합율 검출방법

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Publication number
KR920701637A
KR920701637A KR1019910701143A KR910701143A KR920701637A KR 920701637 A KR920701637 A KR 920701637A KR 1019910701143 A KR1019910701143 A KR 1019910701143A KR 910701143 A KR910701143 A KR 910701143A KR 920701637 A KR920701637 A KR 920701637A
Authority
KR
South Korea
Prior art keywords
fuel
combustion engine
internal combustion
correction coefficient
detection method
Prior art date
Application number
KR1019910701143A
Other languages
English (en)
Other versions
KR960005753B1 (ko
Inventor
마사토 요시다
타카나오 요꼬야마
무네요시 난바
요시히꼬 카토
카즈마사 이이다
카쯔히꼬 미야모토
Original Assignee
나까무라 유이찌
미쯔비시지도오샤 고오교오 가부시기가이샤
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Application filed by 나까무라 유이찌, 미쯔비시지도오샤 고오교오 가부시기가이샤 filed Critical 나까무라 유이찌
Publication of KR920701637A publication Critical patent/KR920701637A/ko
Application granted granted Critical
Publication of KR960005753B1 publication Critical patent/KR960005753B1/ko

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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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • 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
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/084—Blends of gasoline and alcohols, e.g. E85
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/085—Control based on the fuel type or composition
    • F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
    • F02D19/088—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels by estimation, i.e. without using direct measurements of a corresponding sensor
    • 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
    • F02D41/2454—Learning of the air-fuel ratio control
    • 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
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0611—Fuel type, fuel composition or fuel quality
    • F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

내용 없음

Description

연료혼합율 검출방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명 방법을 설명하는 블록도, 제2a도 내지 제2c도는 본 발명방법에 의거해서 경시적으로 변화하는 공연비의 출력이나 각 특성치의 파형도, 제3도는 본 발명 방법을 채용한 엔진제어장치의 개략구성도.

Claims (4)

  1. 내연기관에 가솔린과 메탄올과의 혼합연료를 공급하는 연료공급장치, 내연기관의 배기중의 공연비정보를 농후와 희박의 판정전압을 중심으로 경시적으로 증감시켜 출력하는 O2센서 및 이 O2센서의 출력을 사용해서 적어도 적분제어를 포함한 연산방법에 의해서 공연비피이드백 보정계수를 산출해서, 내연기관의 공연비가 목표치가 되도록 연료공급량을 조정하는 제어수단을 가진 내연기관을 위한 연료혼합율 검출방법에 있어서, 상기 피이드백보정계수에 피이크치가 생길때마다 현행의 피이크치와 전회의 피이크치와의 피이크평균치를 산출하고, 현행의 혼합율보정계수에 상기 피이크평균치를 승산해서 다음회의 혼합율보정계수를 구하는 것을 특징으로 하는 연료혼합율검출방법.
  2. 제1항에 있어서, 상기 다음회의 혼합율보정계수로부터 혼합율을 구하는 것을 특징으로 하는 연료혼합율검출방법.
  3. 제1항에 있어서, 상기 제어수단은 적어도 비례적분제어를 포함하고 있는 것을 특징으로 하는 연료혼합율검출방법.
  4. 내연기관에 가솔린과 메탄올과의 혼합연료를 공급하는 연료공급장치, 내연기관의 배기중의 공연비정보를 농후와 희박의 판정전압을 중심으로 경시적으로 증감시켜 출력하는 O2센서 및 이 O2센서의 출력을 사용해서 적어도 적분제어를 포함한 연산방법에 의해서 공연비피이드백 보정계수를 산출해서, 내연기관의 공연비가 목표치가 되도록 연료공급량을 조정하는 제어수단을 가진 내연기관을 위한 연료혼합율검출방법에 있어서, 상기 피이드백보정계수에 피이크치가 생길때마다 현행의 피이크치와 전회의 피이크치와의 피이크평균치를 산출하고, 현행의 혼합율보정계수에 상기 피이크평균치를 승산해서 다음회의 혼합율보정계수를 구하고, 상기 구해진 혼합율보정계수에 의해 내연기관에 공급되는 연료량을 제어하는 것을 특징으로 하는 연료혼합율검출방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910701143A 1990-01-19 1991-01-16 연료혼합내연기관의 제어방법 KR960005753B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011516A JP2826600B2 (ja) 1990-01-19 1990-01-19 燃料ブレンド率検出方法
JP90-11516 1990-01-19
PCT/JP1991/000033 WO1991010823A1 (fr) 1990-01-19 1991-01-16 Procede de determination du rapport de melange de carburant

Publications (2)

Publication Number Publication Date
KR920701637A true KR920701637A (ko) 1992-08-12
KR960005753B1 KR960005753B1 (ko) 1996-05-01

Family

ID=11780167

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910701143A KR960005753B1 (ko) 1990-01-19 1991-01-16 연료혼합내연기관의 제어방법

Country Status (4)

Country Link
US (1) US5195497A (ko)
JP (1) JP2826600B2 (ko)
KR (1) KR960005753B1 (ko)
WO (1) WO1991010823A1 (ko)

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JP2503829B2 (ja) * 1991-04-23 1996-06-05 トヨタ自動車株式会社 内燃機関の空燃比制御装置
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FR2807474B1 (fr) * 2000-04-06 2002-09-20 Renault Procede et dispositif de commande de la composition d'un melange air/carburant d'alimentation d'un moteur recevant divers carburants
US20030206710A1 (en) * 2001-09-14 2003-11-06 Ferman Ahmet Mufit Audiovisual management system
JP4372472B2 (ja) * 2003-08-07 2009-11-25 トヨタ自動車株式会社 内燃機関
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Also Published As

Publication number Publication date
JPH03217643A (ja) 1991-09-25
US5195497A (en) 1993-03-23
JP2826600B2 (ja) 1998-11-18
KR960005753B1 (ko) 1996-05-01
WO1991010823A1 (fr) 1991-07-25

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