JPS61173749U - - Google Patents

Info

Publication number
JPS61173749U
JPS61173749U JP1985056780U JP5678085U JPS61173749U JP S61173749 U JPS61173749 U JP S61173749U JP 1985056780 U JP1985056780 U JP 1985056780U JP 5678085 U JP5678085 U JP 5678085U JP S61173749 U JPS61173749 U JP S61173749U
Authority
JP
Japan
Prior art keywords
fuel
air
oxygen concentration
engine
fuel ratio
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.)
Pending
Application number
JP1985056780U
Other languages
English (en)
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
Application filed filed Critical
Priority to JP1985056780U priority Critical patent/JPS61173749U/ja
Priority to US06/819,660 priority patent/US4649882A/en
Publication of JPS61173749U publication Critical patent/JPS61173749U/ja
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M23/00—Apparatus for adding secondary air to fuel-air mixture
    • F02M23/04—Apparatus for adding secondary air to fuel-air mixture with automatic control
    • 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
    • F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
    • F02D35/0023—Controlling air supply
    • F02D35/003—Controlling air supply by means of by-pass passages
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例を示す概略図、第２図
は第１図の装置中の酸素濃度センサの出力特性を
示す図、第３図は第１図の装置中の制御回路の具
体的構成を示すブロツク図、第４図、第５図及び
第８図はＣＰＵの動作を示すフロー図、第６図は
ＲＯＭに書き込まれたデータマツプを示す図、第
７図は第１図の装置の動作タイミングを示す図で
ある。 主要部分の符号の説明、２…エアクリーナ、３
…気化器、４…吸気マニホールド、６…絞り弁、
７…ベンチユリ、１２…パワーバルブ、１３…吸
気２次空気供給通路、１４…電磁開閉弁、１５…
絶対圧センサ、１６…クランク角センサ、１７…
冷却水温センサ、１９…酸素濃度センサ、２０…
排気マニホールド、４４…触媒コンバータ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 供給混合気の燃料をエンジンの運転状態に応じ
    て増量させる燃料増量装置を備えた内燃エンジン
    の気化器絞り弁下流に連通する吸気２次空気供給
    通路と、該吸気２次空気供給通路に設けられた開
    閉弁と、エンジンの排気ガス通路に設けられてエ
    ンジンへの供給混合気の空燃比が少なくとも理論
    空燃比よりリーンにあるとき排気ガスの酸素濃度
    に比例する出力を発生する酸素濃度センサと、該
    酸素濃度センサの出力レベルから供給混合気の空
    燃比が目標空燃比に対してリーン又はリツチのい
    ずれであるかを判別しその判別結果に応じて前記
    開閉弁の開閉をデユーテイ制御する制御手段とを
    含み、前記制御手段は前記燃料増量装置が燃料増
    量作動中にあることを検出したときには前記酸素
    濃度センサの出力レベルに無関係に前記開閉弁を
    閉弁せしめることを特徴とする吸気２次空気供給
    装置。
JP1985056780U 1985-04-16 1985-04-16 Pending JPS61173749U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985056780U JPS61173749U (ja) 1985-04-16 1985-04-16
US06/819,660 US4649882A (en) 1985-04-16 1986-01-17 Air intake side secondary air supply system for an internal combustion engine equipped with a fuel increment control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985056780U JPS61173749U (ja) 1985-04-16 1985-04-16

Publications (1)

Publication Number Publication Date
JPS61173749U true JPS61173749U (ja) 1986-10-29

Family

ID=13036947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985056780U Pending JPS61173749U (ja) 1985-04-16 1985-04-16

Country Status (2)

Country Link
US (1) US4649882A (ja)
JP (1) JPS61173749U (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62162748A (ja) * 1986-01-13 1987-07-18 Honda Motor Co Ltd 内燃エンジンの空燃比制御方法
DE102014222446A1 (de) * 2014-11-04 2016-05-04 Bayerische Motorenwerke Aktiengesellschaft Brennkraftmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153021A (en) * 1973-06-04 1979-05-08 Nippon Soken, Inc. Air-fuel mixture ratio correcting system for carburetor
JPS5934860B2 (ja) * 1974-08-19 1984-08-24 カブシキガイシヤ ニツポンジドウシヤブヒンソウゴウケンキユウシヨ 内燃機関の空燃比補正装置
JPS5584858A (en) * 1978-12-18 1980-06-26 Nippon Denso Co Ltd Engine control
US4335693A (en) * 1979-09-20 1982-06-22 Colt Industries Operating Corp. Fuel injection apparatus and system
JPS56118536A (en) * 1980-02-22 1981-09-17 Toyota Motor Corp Air fuel ratio controller for engine
JPS57212354A (en) * 1981-06-23 1982-12-27 Aisin Seiki Co Ltd Air-fuel ratio control system

Also Published As

Publication number Publication date
US4649882A (en) 1987-03-17

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