KR950025416A - Intake air flow detection device of internal combustion engine - Google Patents

Intake air flow detection device of internal combustion engine Download PDF

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Publication number
KR950025416A
KR950025416A KR1019950003633A KR19950003633A KR950025416A KR 950025416 A KR950025416 A KR 950025416A KR 1019950003633 A KR1019950003633 A KR 1019950003633A KR 19950003633 A KR19950003633 A KR 19950003633A KR 950025416 A KR950025416 A KR 950025416A
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KR
South Korea
Prior art keywords
intake air
component
air flow
flow rate
detecting
Prior art date
Application number
KR1019950003633A
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Korean (ko)
Other versions
KR0163456B1 (en
Inventor
하지메 호소야
Original Assignee
야스모로 도시오
가부시끼가이샤 유니시아 젝스
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Application filed by 야스모로 도시오, 가부시끼가이샤 유니시아 젝스 filed Critical 야스모로 도시오
Publication of KR950025416A publication Critical patent/KR950025416A/en
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Publication of KR0163456B1 publication Critical patent/KR0163456B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

본 발명의 목적은 역류 성분을 포함한 흡기 맥동이 발생하여도 흡입 공기 유량의 검출 정밀도를 향상시켜서 검출 장치의 신뢰성을 확보하는 것이다. 흡기통로(13)을 중앙 격벽(21), 차폐벽(22) 및 차폐벽(23)에 의하여 정류만이 통과하는 흡기 통로(13a)와 역류만이 통과하는 흡기 통로(13b)로 분할하고, 흡기 통로(13a)에 플러스 방향 출력만을 출력하는 회로에 내장된 감온 저항(RH1)을 배치하고, 흡기 통로(13b)에 마이너스 방향 출력만을 출력하는 회로에 내장된 감온 저항(RH2)를 배치한다.An object of the present invention is to secure the reliability of the detection device by improving the detection accuracy of the intake air flow rate even when intake pulsations including the countercurrent component occur. The intake passage 13 is divided into an intake passage 13a through which only rectification passes and an intake passage 13b through which only reverse flow passes, by the central partition wall 21, the shield wall 22, and the shield wall 23, A thermal resistance resistor R H1 built in the circuit outputting only the positive direction output is disposed in the intake passage 13a, and a thermal resistance resistor R H2 built in the circuit outputting only the negative direction output is disposed in the intake passage 13b. do.

Description

내연기관의 흡입공기 유량 검출장치Intake air flow detection device of internal combustion engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예의 하드웨어 구성을 도시하는 시스템 재략도,1 is a system schematic diagram showing a hardware configuration of an embodiment of the present invention;

제2도는 상기 실시예의 감온식 유량계의 회로 구성을 도시하는 회로도,2 is a circuit diagram showing the circuit configuration of the thermostatic flow meter of the embodiment;

제3도는 상기 실시예의 감온식 유량계의 회로 구성을 도시하는 회로도,3 is a circuit diagram showing the circuit configuration of the thermostatic flow meter of the embodiment;

제6도는 본 발명의 다른 실시예의 하드웨어 구성을 도시하는 개략도.6 is a schematic diagram showing a hardware configuration of another embodiment of the present invention.

Claims (4)

내연기관의 흡입 공기 유량을 검출하는 흡입 공기 유량 검출장치에 있어서, 정류(正流)방향으로 흐르는 흡입 공기 유량 성분만을 검출하는 정류 성분 검출수단과, 역류(逆流)방향으로 흐르는 흡입 공기 유량 성분만을 검출하는 역류 성분 검출수단 및 흡입 공기 유량의 정류 성분 검출치와 역류 성분 검출치에 의거하여 기관의 흡입 공기 유량을 검출하는 흡입 공기량을 검출 수단을 설치한 것을 특징으로 하는 내연기관의 흡입 공기 유령 검출장치.An intake air flow rate detecting device for detecting an intake air flow rate of an internal combustion engine, comprising: rectifying component detecting means for detecting only an intake air flow rate component flowing in a rectifying direction, and only an intake air flow rate component flowing in a counter flow direction Inhalation air ghost detection of an internal combustion engine, characterized by providing a counter current component detecting means for detecting and an intake air amount detecting the intake air flow rate of the engine based on the rectified component detected value of the intake air flow rate and the counter flow component detected value. Device. 제1항에 있어서, 내연기관의 흡입 공기 통로 내에 흡입 공기 흐름의 역류 성분을 차단하고 정류 성분만을 통과시키는 정류 성분 통과 수단 및 흡입 공기 흐름의 정류 성분을 차단하고 역류 성분만을 통과시키는 역류 성분 통과수단을 구비하고, 상기 정류 성분 검출수단 및 역류 성분 검출수단이 각각 정류 성분 통과 수단 및 역류 성분 통과 수단을 통과하는 정류 성분 및 역류 성분의 유량을 검출하도록 구성되는 것을 특징으로 하는 내연 기관의 흡입 공기 유량 검출장치,2. The flow filter according to claim 1, further comprising: a rectifying component passing means for blocking the reverse flow component of the intake air flow and passing only the rectifying component in the intake air passage of the internal combustion engine and a reverse flow component passing means for blocking the rectifying component of the intake air flow and passing only the reverse flow component. And the rectifying component detecting means and the countercurrent component detecting means are configured to detect the flow rates of the rectifying component and the countercurrent component passing through the rectifying component passing means and the countercurrent component passing means, respectively. Detection device, 제2항에 있어서, 정류 성분 통과수단 및 역류 성분 통과수단은 각각 저류, 역류에 대하여 입구가 흡입 공기 유통 방향과 직각으로 개구되고, 출구가 흡입 공기 유통 방향에 대하여 평행으로 개구되어 있는 것을 특징으로 하는 내연 기관의 흡입 공기 유량 검출장치.3. The rectifying component passage means and the counter flow component passage means are respectively characterized in that the inlet is opened at right angles to the intake air flow direction with respect to the storage and the reverse flow, and the outlet is opened in parallel with the intake air flow direction. Intake air flow rate detection device of an internal combustion engine. 제1항에 있어서, 흡입 공기 유량을 검출하는 흡입 공기 유량 검출장치가 감온 저항식인 것을 특징으로 하는 내연기관의 흡입 공기 유량 검출장치.The intake air flow rate detection device according to claim 1, wherein the intake air flow rate detection device for detecting the intake air flow rate is a thermosensitive resistance type. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950003633A 1994-02-25 1995-02-24 Intake air flow rate detector of internal combustion engine KR0163456B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-027749 1994-02-25
JP6027749A JPH07234143A (en) 1994-02-25 1994-02-25 Intake air flow rate detector of internal combustion engine

Publications (2)

Publication Number Publication Date
KR950025416A true KR950025416A (en) 1995-09-15
KR0163456B1 KR0163456B1 (en) 1999-03-30

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KR1019950003633A KR0163456B1 (en) 1994-02-25 1995-02-24 Intake air flow rate detector of internal combustion engine

Country Status (2)

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JP (1) JPH07234143A (en)
KR (1) KR0163456B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9613310D0 (en) * 1996-06-25 1996-08-28 Specialised Lab Equipment Ltd Hot wire sensor
JP6106559B2 (en) 2013-09-02 2017-04-05 日立オートモティブシステムズ株式会社 Thermal flow sensor

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KR0163456B1 (en) 1999-03-30
JPH07234143A (en) 1995-09-05

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