KR910017173A - 펄스출력형 열선식 공기유량계 - Google Patents

펄스출력형 열선식 공기유량계 Download PDF

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Publication number
KR910017173A
KR910017173A KR1019910004311A KR910004311A KR910017173A KR 910017173 A KR910017173 A KR 910017173A KR 1019910004311 A KR1019910004311 A KR 1019910004311A KR 910004311 A KR910004311 A KR 910004311A KR 910017173 A KR910017173 A KR 910017173A
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KR
South Korea
Prior art keywords
circuit
air flow
flow meter
pulse output
semiconductor chip
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KR1019910004311A
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English (en)
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KR100197032B1 (ko
Inventor
마사요시 스즈끼
Original Assignee
미쓰다 가쓰시게
가부시끼가이샤 히다찌 세이사꾸쇼
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Publication of KR910017173A publication Critical patent/KR910017173A/ko
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Publication of KR100197032B1 publication Critical patent/KR100197032B1/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
    • F02D41/24—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
    • F02D41/28—Interface circuits
    • 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
    • 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
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
    • 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
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • 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
    • 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
    • G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
    • 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
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)

Abstract

내용 없음

Description

펄스출력형 열선식 공기유량계
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 펄스출력형 열선식 공기유량계의 원리구성도, 제11도는 정온도제어회로 및 지로/스판회로 및, 기준전압회로의 한예를 표시하는 회로도, 제12도는 전압제어발진기의 한예를 표시하는 회로도이다.

Claims (9)

  1. 유량검출용의 열선소자와 온도검출용의 냉선소자를 사용하고 제어용의 전자회로로서, 적어도 정온도제어회로와, 지로/스판회로 및 전압-주파수 변환회로를 구비하고, 유량검출신호를 펄스밀도 신호로서 직접 출력하는 방식의 펄스출력형 열선식 공기유량계에 있어서, 상기 정온도제어회로와, 지로/스판회로 및 전압-주파수 변환 회로를 동일한 반도체칩에 집적회로화하여 구성한 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  2. 제1항에 있어서, 상기 정온도제어회로에 포함된 상기 열선소자가열 전류제어용의 파워트랜지스터를, 상기 반도체칩과는 독립적으로 바깥에 붙여서 배치한 것을 특징으로 하는 펄스출력 열선식 공기유량계.
  3. 제1항에 있어서, 상기 전자 회로에 포함되어 있는 저항소자의 일부가 상기 반도체칩과는 독립적으로 바깥에 붙혀서 배치되어 있는 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  4. 제1항에 있어서, 상기 반도칩과는 독립적으로 바깥에 붙혀서 배치되어 있는 저항소자는, 하이브릿드 회로기판상에 탑제되어 있는 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  5. 제1항에 있어서, 상기 전자회로가 서지보호회로를 포함하고, 이 서지보호회로를 포함하여 상기 동일한 반도체칩에 집적회로화하여 구성되어 있는 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  6. 제5항에 있어서, 상기 서지보호회로가 서이리스터로 구성되어 있는 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  7. 제1항에 있어서, 상기 전자회로가 펄스신호출력에 대한 파형 연장회로를 포함하고, 이 파형 연장회로를 포함하여 상기 동일한 반도체칩에 집적회로 화하여 구성되어 있는 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  8. 제1항에 있어서, 상기 전자회로나 유량에 대한 펄스출력형 정밀도를 향상시키는 온도 보상회로를 포함하고, 이 온도보상회로를 포함하여 상기 동일한 반도체칩에 집적회로화하여 구성되어 있는 것을 특징으로 하는 펄스출력형 열선식 공기유량계.
  9. 제1항에 있어서, 상기 반도체칩상에서의 칩적회로의 배치가, 상기 정온도제어회로로 대표되는 아날로그회로부와, 상기 전압-주파수변환회로로 대표되는 디지탈회로부와로 위치적으로 분리되고, 이것들 아날로그 회로부와 디지탈회로부와의 사이에 상기 정온도제어회로에 포함된 상기 열선소자가 열전류제어용의 파워 트랜지스터를 배치시킨 것을 특징으로 하는 펄스출력형 열선식 공기 유량계.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910004311A 1990-03-19 1991-03-19 펄스출력형 열선식 공기유량계 KR100197032B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-66909 1990-03-19
JP02066909A JP3135245B2 (ja) 1990-03-19 1990-03-19 パルス出力型熱線式空気流量計

Publications (2)

Publication Number Publication Date
KR910017173A true KR910017173A (ko) 1991-11-05
KR100197032B1 KR100197032B1 (ko) 1999-06-15

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KR1019910004311A KR100197032B1 (ko) 1990-03-19 1991-03-19 펄스출력형 열선식 공기유량계

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Country Link
US (1) US5226319A (ko)
EP (1) EP0449443B1 (ko)
JP (1) JP3135245B2 (ko)
KR (1) KR100197032B1 (ko)
DE (1) DE69119462T2 (ko)

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JP2001296156A (ja) * 2000-04-13 2001-10-26 Yazaki Corp 流量計測装置及び電子式流量メータ
JP2006245154A (ja) * 2005-03-02 2006-09-14 Rohm Co Ltd 半導体集積回路装置
JP5135815B2 (ja) * 2006-02-14 2013-02-06 ミツミ電機株式会社 半導体集積回路装置
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JP5220647B2 (ja) * 2009-02-12 2013-06-26 株式会社日立ハイテクノロジーズ 自動分析装置
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CN110533966B (zh) * 2019-10-14 2021-03-19 郑州铁路职业技术学院 一种外语口语校正系统
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Also Published As

Publication number Publication date
KR100197032B1 (ko) 1999-06-15
JPH03269218A (ja) 1991-11-29
US5226319A (en) 1993-07-13
EP0449443A1 (en) 1991-10-02
DE69119462T2 (de) 1997-01-16
EP0449443B1 (en) 1996-05-15
DE69119462D1 (de) 1996-06-20
JP3135245B2 (ja) 2001-02-13

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