KR890005511A - 내연기관의 연료성상 검출장치 - Google Patents

내연기관의 연료성상 검출장치 Download PDF

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Publication number
KR890005511A
KR890005511A KR1019880010149A KR880010149A KR890005511A KR 890005511 A KR890005511 A KR 890005511A KR 1019880010149 A KR1019880010149 A KR 1019880010149A KR 880010149 A KR880010149 A KR 880010149A KR 890005511 A KR890005511 A KR 890005511A
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South Korea
Prior art keywords
fuel
internal combustion
combustion engine
crank angle
air
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KR1019880010149A
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English (en)
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KR900005615B1 (ko
Inventor
쇼오이찌 와시노
사도루 오오꾸보
Original Assignee
시끼모리야
미쓰비시전기 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic 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
    • F02D35/023—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
    • 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
    • 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
    • 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
    • F02D41/008—Controlling each cylinder individually

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

내용 없음

Description

내연기관의 연료성상검출장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 이 발명의 한 실시예에 의한 내연기관의 연료성상검출장치의 주요구성도.
제2도는 동상의 실시예에 의한 실효발열량 Q를 계산하는 프로챠트.
* 도면의 주요부분에 대한 부호의 설명
1 : 에어크리너 2 : 에어플로미터
3 : 드로틀밸브 4 : 흡기마니폴드(manifold)
5 : 실린더블록 6 : 수은 센서
9 : 배기센서 10 : 연료분사변
11 : 점화프러그 13 : 압력센서
15 : 제어장치

Claims (6)

  1. 흡입공기유량과 배기가스중의 공연비를 계측하고, 상기 공기유량에 따라 연료의 기본분사량을 산출하여 연료를 분사함과 동시에 배기가스중의 공연비에 따라 분사량을 피드백 보정하는 내연기관의 실린더 내 압력을 검출하는 압력검출수단과, 상기 내연기관의 크랭크각을 검출하는 크랭크각검출수단과, 상기 압력검출수단과 상기 크랭크각 검출수단의 양검출신호를 입력으로하며 1회의 점화사이클내에 있어서 압축 및, 팽창행정 중 크랭크각의 실린더내 압력 P(θ), 크랭크각 θ 및 실린더용적 V(θ)의 값으로부터 1사이클내의 연료실효발열량 Q를 산출함과 동시에 연료의 유효연산비율 K 또는 연료의 저위발열량 Hu를 산출하며 또 상기 유효연료비율 K 또는 저위발열량 Hu 중 적어도 한쪽의 값, 또는 연료분사 펄스폭 Ti와 저위발열량 Hu의 비 Ti/Hu의 값을, 사용하여 연료성상을 검출하는 제어장치등을 구비한 내연기관의 연료성상 검출장치.
  2. 청구범위 제1항에 있어서, 제어장치는 유효연소비율 K 또는 연료의 저위발열량 Hu 중 적어도 한쪽의 값을, 기관의 동작점을 표시하는 적어도 2개의 데이터 테이블을 작성하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
  3. 청구범위 제2항에 있어서, 상기 내연기관의 동작점을 표시하는 두 개의 파라미터는 토오크와 기관회전수 또는 흡기관 압력과 기관회전수 혹은 단위 회전수당의 흡입공기유량과 기관회전수중 어느하나를 조합시키는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
  4. 청구범위 제2항에 있어서, 2차원 데이터 테이블은 내연기관의 온도조건을 표시하는 파라미터마다 작성하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
  5. 청구범위 제4항에 있어서, 내연기관의 온도조건을 표시한 파라미터는 내연기관 냉각수온도나 실린더벽의 온도중 적어도 한쪽을 취하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
  6. 청구범위 제1항에 있어서, 제어장치는 1사이클내의 발열량 Q의 산출에 있어서 공기의 공연비를 K로 하고의 식을 사용하여 크랭크각 θ에 대한 실린더용적 v(θ)의 값과, v(θ)의 크랭크각 마다의 변화 dv(θ)의 값을 데이터 테이블로서 메모리에 기억시키고 계산시에 판독하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880010149A 1987-09-29 1988-08-09 내연기관의 연료성상(性狀)검출장치 KR900005615B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP???62-246561 1987-09-29
JP62246561A JPH0750099B2 (ja) 1987-09-29 1987-09-29 内燃機関の燃料性状検出装置
JP?62-246561 1987-09-29

Publications (2)

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KR890005511A true KR890005511A (ko) 1989-05-15
KR900005615B1 KR900005615B1 (ko) 1990-07-31

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US (1) US4905649A (ko)
JP (1) JPH0750099B2 (ko)
KR (1) KR900005615B1 (ko)
DE (1) DE3833123A1 (ko)

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Also Published As

Publication number Publication date
JPH0750099B2 (ja) 1995-05-31
JPS6488153A (en) 1989-04-03
KR900005615B1 (ko) 1990-07-31
US4905649A (en) 1990-03-06
DE3833123C2 (ko) 1990-09-27
DE3833123A1 (de) 1989-04-13

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