JPS63125152U - - Google Patents

Info

Publication number
JPS63125152U
JPS63125152U JP1669387U JP1669387U JPS63125152U JP S63125152 U JPS63125152 U JP S63125152U JP 1669387 U JP1669387 U JP 1669387U JP 1669387 U JP1669387 U JP 1669387U JP S63125152 U JPS63125152 U JP S63125152U
Authority
JP
Japan
Prior art keywords
air
fuel ratio
control
control amount
feedback
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.)
Granted
Application number
JP1669387U
Other languages
Japanese (ja)
Other versions
JPH0437244Y2 (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 JP1987016693U priority Critical patent/JPH0437244Y2/ja
Publication of JPS63125152U publication Critical patent/JPS63125152U/ja
Application granted granted Critical
Publication of JPH0437244Y2 publication Critical patent/JPH0437244Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の実施例を示すエンジンの燃
料系統のシステム構成図である。第２図は、第１
図に示す気化器の構成を示す断面説明図である。
第３図は、第１図に示す制御回路による制御方法
を示す制御フローチヤートである。第４図ａ，ｂ
，ｃは、夫々制御回路によつて空燃比をフイード
バツク制御したときの、空燃比とＯ２センサ出力
電圧とデユーテイ比の特性を示す図である。第５
図は、制御回路からソレノイド弁に印加される信
号の特性を示す図である。第６図ａ，ｂは、夫々
、フイードバツク制御時、制御回路からソレノイ
ド弁に印加される低温時と高温時の信号を示す図
である。第７図ａ，ｂは、夫々、低温時と高温時
における、デユーテイ比と空燃比の関係を示す図
である。 Ｅ……エンジン、１１……Ｏ２センサ、１５…
…気化器、２０……制御回路、３６……メインジ
エツト、３７……燃料通路、３８……スロージエ
ツト、４９……バイパス燃料通路、５１……補正
用メインジエツト、５２……ソレノイド弁（バイ
パス弁）。 FIG. 1 is a system configuration diagram of an engine fuel system showing an embodiment of the present invention. Figure 2 shows the first
FIG. 2 is a cross-sectional explanatory diagram showing the configuration of the carburetor shown in the figure.
FIG. 3 is a control flowchart showing a control method by the control circuit shown in FIG. Figure 4 a, b
, c are diagrams showing the characteristics of the air-fuel ratio, the O 2 sensor output voltage, and the duty ratio when the air-fuel ratio is feedback-controlled by the respective control circuits. Fifth
The figure is a diagram showing the characteristics of a signal applied to a solenoid valve from a control circuit. FIGS. 6a and 6b are diagrams showing signals applied to the solenoid valve from the control circuit at low temperature and high temperature, respectively, during feedback control. FIGS. 7a and 7b are diagrams showing the relationship between the duty ratio and the air-fuel ratio at low temperatures and high temperatures, respectively. E...Engine, 11... O2 sensor, 15...
... Carburizer, 20 ... Control circuit, 36 ... Main jet, 37 ... Fuel passage, 38 ... Slow jet, 49 ... Bypass fuel passage, 51 ... Main jet for correction, 52 ... Solenoid valve (bypass valve).

Claims (1)

【実用新案登録請求の範囲】 空燃比検出手段と、メインジエツトをバイパス
するバイパス燃料通路を開閉するバイパス弁と、
上記空燃比検出手段からの信号を入力情報として
、上記バイパス弁を開閉して空燃比を目標値に維
持するようにフイードバツク制御する制御手段と
を設けたフイードバツク式気化器において、 アイドル時にリーン側へのフイードバツク制御
量が所定値以上となつたときには、制御量を該所
定値よりリツチ側の固定値に固定する手段を設け
たことを特徴とするエンジンの空燃比制御装置。[Scope of Claim for Utility Model Registration] An air-fuel ratio detection means, a bypass valve that opens and closes a bypass fuel passage that bypasses the main jet;
In a feedback type carburetor, the feedback type carburetor is provided with a control means that uses a signal from the air-fuel ratio detection means as input information to perform feedback control so as to open and close the bypass valve to maintain the air-fuel ratio at a target value. An air-fuel ratio control device for an engine, comprising means for fixing the control amount to a fixed value on the richer side than the predetermined value when the feedback control amount of the control amount exceeds a predetermined value.
JP1987016693U 1987-02-06 1987-02-06 Expired JPH0437244Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987016693U JPH0437244Y2 (en) 1987-02-06 1987-02-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987016693U JPH0437244Y2 (en) 1987-02-06 1987-02-06

Publications (2)

Publication Number Publication Date
JPS63125152U true JPS63125152U (en) 1988-08-16
JPH0437244Y2 JPH0437244Y2 (en) 1992-09-02

Family

ID=30808783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987016693U Expired JPH0437244Y2 (en) 1987-02-06 1987-02-06

Country Status (1)

Country Link
JP (1) JPH0437244Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8931660B2 (en) 2001-07-03 2015-01-13 Ball Corporation Can shell and double-seamed can end

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185855A (en) * 1983-04-07 1984-10-22 Japan Electronic Control Syst Co Ltd Air-fuel ratio control device for mixture gas supply device of internal-combustion engine
JPS623158A (en) * 1985-06-29 1987-01-09 Daihatsu Motor Co Ltd Air-fuel ratio control for carburetor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185855A (en) * 1983-04-07 1984-10-22 Japan Electronic Control Syst Co Ltd Air-fuel ratio control device for mixture gas supply device of internal-combustion engine
JPS623158A (en) * 1985-06-29 1987-01-09 Daihatsu Motor Co Ltd Air-fuel ratio control for carburetor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8931660B2 (en) 2001-07-03 2015-01-13 Ball Corporation Can shell and double-seamed can end
US9371152B2 (en) 2001-07-03 2016-06-21 Ball Corporation Can shell and double-seamed can end

Also Published As

Publication number Publication date
JPH0437244Y2 (en) 1992-09-02

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