JPH02149858U - - Google Patents
Info
- Publication number
- JPH02149858U JPH02149858U JP5861689U JP5861689U JPH02149858U JP H02149858 U JPH02149858 U JP H02149858U JP 5861689 U JP5861689 U JP 5861689U JP 5861689 U JP5861689 U JP 5861689U JP H02149858 U JPH02149858 U JP H02149858U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- internal combustion
- combustion engine
- temperature factor
- 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 11
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図はこの考案の構成を示す概略図。第２図
はこの考案の実施例の内燃機関の構成を示す図。
第３図は制御回路の作動を説明するフローチヤー
ト。第４図はエンジンの停止からの経過時間と燃
料蒸気発生量と吸入空気温度との変化を示すグラ
フ。第５図は吸入空気温度と補助空気制御弁の開
度との関係を示すグラフ。第６図は制御回路の作
動を説明するタイミング図。
１０……エンジン本体、１２……吸気管、１４
……排気管、１６……気化器、１８……スロツト
ル弁、２６……エアクリーナ、３０……補助空気
制御弁、３２……弁体、３６……ソレノイド、４
８……リード弁、５４……Ｏ２センサ、５６……
回転数センサ、５９……吸入空気温センサ。
FIG. 1 is a schematic diagram showing the configuration of this invention. FIG. 2 is a diagram showing the configuration of an internal combustion engine according to an embodiment of this invention.
FIG. 3 is a flowchart explaining the operation of the control circuit. FIG. 4 is a graph showing changes in the elapsed time since the engine stopped, the amount of fuel vapor generated, and the intake air temperature. FIG. 5 is a graph showing the relationship between intake air temperature and opening degree of the auxiliary air control valve. FIG. 6 is a timing diagram illustrating the operation of the control circuit. 10...Engine body, 12...Intake pipe, 14
... Exhaust pipe, 16 ... Carburizer, 18 ... Throttle valve, 26 ... Air cleaner, 30 ... Auxiliary air control valve, 32 ... Valve body, 36 ... Solenoid, 4
8...Reed valve, 54... O2 sensor, 56...
Rotation speed sensor, 59...Intake air temperature sensor.
Claims (1)
燃比制御装置、 内燃機関に導入される混合気の空燃比を補正す
る空燃比補正手段、 内燃機関の温度因子を検出する機関温度因子検
出手段、 内燃機関の停止直後に前記機関温度検出手段に
より検出された温度因子を記憶する機関温度因子
記憶手段、 内燃機関の始動時を検出する始動時検出手段、 内燃機関の始動時において、記憶手段に記憶さ
れた温度因子に対する機関温度因子検出手段によ
り検出された温度因子の上昇分を算出する温度因
子上昇分算出手段、 前記上昇分が大きいときに空燃比補正手段によ
る空燃比の補正を許可し、その上昇分が小さいと
きに空燃比補正手段による空燃比の補正を禁止す
る空燃比制御手段。[Claims for Utility Model Registration] An air-fuel ratio control device for starting an internal combustion engine, which includes the following components, an air-fuel ratio correction means for correcting the air-fuel ratio of an air-fuel mixture introduced into the internal combustion engine, and detecting temperature factors of the internal combustion engine. engine temperature factor storage means for storing the temperature factor detected by the engine temperature detection means immediately after the internal combustion engine is stopped; starting time detection means for detecting when the internal combustion engine is started; starting of the internal combustion engine. temperature factor increase calculation means for calculating an increase in the temperature factor detected by the engine temperature factor detection means with respect to the temperature factor stored in the storage means; when the increase is large, the air-fuel ratio is adjusted by the air-fuel ratio correction means; air-fuel ratio control means that permits correction of the air-fuel ratio and prohibits correction of the air-fuel ratio by the air-fuel ratio correction means when the increase is small;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5861689U JPH0744754Y2 (en) | 1989-05-23 | 1989-05-23 | Air-fuel ratio controller for starting internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5861689U JPH0744754Y2 (en) | 1989-05-23 | 1989-05-23 | Air-fuel ratio controller for starting internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02149858U true JPH02149858U (en) | 1990-12-21 |
| JPH0744754Y2 JPH0744754Y2 (en) | 1995-10-11 |
Family
ID=31584389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5861689U Expired - Lifetime JPH0744754Y2 (en) | 1989-05-23 | 1989-05-23 | Air-fuel ratio controller for starting internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0744754Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360685A (en) | 2003-05-12 | 2004-12-24 | Yamaha Motor Co Ltd | Engine starter and saddle type running vehicle |
-
1989
- 1989-05-23 JP JP5861689U patent/JPH0744754Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0744754Y2 (en) | 1995-10-11 |
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