JPS61147351U - - Google Patents
Info
- Publication number
- JPS61147351U JPS61147351U JP3142785U JP3142785U JPS61147351U JP S61147351 U JPS61147351 U JP S61147351U JP 3142785 U JP3142785 U JP 3142785U JP 3142785 U JP3142785 U JP 3142785U JP S61147351 U JPS61147351 U JP S61147351U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- fuel
- delay period
- optical fiber
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の基本概念図、第２〜６図は本
考案の第１実施例を示す図であり、第２図はその
全体構成図、第３図はその着火遅れ期間を点火時
期と空燃比との関係で示す図、第４図はその空燃
比制御のプログラムを示すフローチヤート、第５
図はその電気信号Ｓｆのレペル変化を示す図、第
６図はその電気信号Ｓｆの微分波形を示す図、第
７，８図は本考案の第２実施例を示す図であり、
第７図はその全体構成図、第８図はそのスワール
比と着火遅れ期間との関係を示す図である。
１……エンジン、４……インジエクタ（操作手
段）、１２……光フアイバ、１４，２８……運転
状態検出手段、１５……コントロールユニツト（
制御手段）、１６……空燃比検出手段。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 6 are diagrams showing the first embodiment of the invention, Fig. 2 is an overall configuration diagram thereof, and Fig. 3 is a diagram showing the ignition delay period. FIG. 4 is a flowchart showing the air-fuel ratio control program, and FIG.
FIG. 6 is a diagram showing the level change of the electric signal Sf, FIG. 6 is a diagram showing the differential waveform of the electric signal Sf, and FIGS. 7 and 8 are diagrams showing a second embodiment of the present invention.
FIG. 7 is a diagram showing the overall configuration, and FIG. 8 is a diagram showing the relationship between the swirl ratio and the ignition delay period. DESCRIPTION OF SYMBOLS 1... Engine, 4... Injector (operating means), 12... Optical fiber, 14, 28... Operating state detection means, 15... Control unit (
control means), 16... air-fuel ratio detection means.
Claims (1)
手段と、 ｂ 燃焼によつて発光する気筒内の光を伝送する
光フアイバと、 ｃ 光フアイバにより伝送された光信号から混合
気の着火遅れ期間を求め、この着火遅れ期間に基
づいて空燃比を検出する空燃比検出手段と、 ｄ 運転状態に応じて目標空燃比を設定するとと
もに、空燃比検出手段の出力に基づいて空燃比が
目標空燃比となるように吸入空気あるいは燃料の
供給量を制御する制御信号を出力する制御手段と
、 ｅ 制御信号に基づいて吸入空気あるいは燃料の
供給量を操作する操作手段と、 を備えたことを特徴とする内燃機関の空燃比制御
装置。[Scope of Claim for Utility Model Registration] a. Operating state detection means for detecting the operating state of the engine; b. An optical fiber that transmits light inside the cylinder emitted by combustion; c. From an optical signal transmitted by the optical fiber. an air-fuel ratio detection means for determining the ignition delay period of the air-fuel mixture and detecting the air-fuel ratio based on the ignition delay period; a control means for outputting a control signal for controlling the supply amount of intake air or fuel so that the air-fuel ratio becomes the target air-fuel ratio; e. an operating means for manipulating the supply amount of intake air or fuel based on the control signal; An air-fuel ratio control device for an internal combustion engine, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142785U JPH048285Y2 (en) | 1985-03-04 | 1985-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142785U JPH048285Y2 (en) | 1985-03-04 | 1985-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61147351U true JPS61147351U (en) | 1986-09-11 |
| JPH048285Y2 JPH048285Y2 (en) | 1992-03-03 |
Family
ID=30532026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3142785U Expired JPH048285Y2 (en) | 1985-03-04 | 1985-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048285Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008019738A (en) * | 2006-07-11 | 2008-01-31 | Mazda Motor Corp | Diagnostic device for intake flow control valve |
-
1985
- 1985-03-04 JP JP3142785U patent/JPH048285Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008019738A (en) * | 2006-07-11 | 2008-01-31 | Mazda Motor Corp | Diagnostic device for intake flow control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH048285Y2 (en) | 1992-03-03 |
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