JPS6218352U - - Google Patents
Info
- Publication number
- JPS6218352U JPS6218352U JP10933885U JP10933885U JPS6218352U JP S6218352 U JPS6218352 U JP S6218352U JP 10933885 U JP10933885 U JP 10933885U JP 10933885 U JP10933885 U JP 10933885U JP S6218352 U JPS6218352 U JP S6218352U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- engine
- high temperature
- detecting
- fuel
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の基本的構成をあらわす概略構
成図、第２図は本考案の空燃比制御装置が適用さ
れる内燃機関の一実施例をあらわす概略構成図、
第３図は空燃比制御装置の一実施例をあらわすブ
ロツク線図、第４図は始動時の空燃比制御の初期
ルーチンをあらわすフローチヤート、第５図はタ
イマールーチンをあらわすフローチヤート、第６
図は燃料増量ルーチンをあらわすフローチヤート
、第７図は燃料増量特性をあらわすグラフである
。
１……内燃機関本体、２……シリンダーブロツ
ク、３……シリンダーヘツド、６……点火プラグ
、９……酸素センサ、１５……水温センサ、１６
……スタータスイツチ、２１……バツテリー電源
、２５……エアフロメータ、２６……吸気温セン
サ、２８……スロツトルバルブ、３２……スロツ
トルスイツチ、３８……燃料噴射弁、５０……制
御装置、５１……中央処理ユニツト（ＣＰＵ）、
５２……リードオンリメモリ（ＲＯＭ）、５３，
５４……ランダムアクセスメモリ（ＲＡＭ）、５
５……Ａ／Ｄ変換器、５６……Ｉ／Ｏ装置。
FIG. 1 is a schematic configuration diagram showing the basic configuration of the present invention, and FIG. 2 is a schematic configuration diagram showing an embodiment of an internal combustion engine to which the air-fuel ratio control device of the present invention is applied.
FIG. 3 is a block diagram showing one embodiment of the air-fuel ratio control device, FIG. 4 is a flowchart showing an initial routine of air-fuel ratio control at startup, FIG. 5 is a flowchart showing a timer routine, and FIG.
The figure is a flowchart showing the fuel increase routine, and FIG. 7 is a graph showing the fuel increase characteristics. DESCRIPTION OF SYMBOLS 1... Internal combustion engine body, 2... Cylinder block, 3... Cylinder head, 6... Spark plug, 9... Oxygen sensor, 15... Water temperature sensor, 16
... Starter switch, 21 ... Battery power supply, 25 ... Air flow meter, 26 ... Intake temperature sensor, 28 ... Throttle valve, 32 ... Throttle switch, 38 ... Fuel injection valve, 50 ... Control device , 51... central processing unit (CPU),
52... Read only memory (ROM), 53,
54...Random access memory (RAM), 5
5...A/D converter, 56...I/O device.
Claims (1)
関の高温時を判別する高温時判別手段と、機関回
転数を検出する回転数検出手段と、目標回転数を
設定する目標回転数設定手段と、前記始動時検出
手段が始動完了であることを示す信号を発生しか
つ前記高温時判別手段が高温時であることを示す
信号を発生した場合機関回転数と目標回転数との
回転数差を演算する比較演算手段と、比較演算手
段の出力信号に基づいて前記回転数差が所定回転
値以上であるとき機関回転数に応じて燃料量を増
量する燃料増量手段とから構成されることを特徴
とする内燃機関の空燃比制御装置。 A start detection means for detecting when the engine is started, a high temperature determination means for determining when the engine is at high temperature, a rotation speed detection means for detecting the engine rotation speed, and a target rotation speed setting means for setting the target rotation speed. , when the start detecting means generates a signal indicating that the start is complete and the high temperature determining means generates a signal indicating that the engine is at high temperature, the engine speed difference between the engine rotation speed and the target rotation speed is determined. It is characterized by comprising a comparison calculation means for calculating, and a fuel increase means for increasing the amount of fuel according to the engine rotation speed when the rotation speed difference is equal to or higher than a predetermined rotation value based on the output signal of the comparison calculation means. Air-fuel ratio control device for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10933885U JPS6218352U (en) | 1985-07-17 | 1985-07-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10933885U JPS6218352U (en) | 1985-07-17 | 1985-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6218352U true JPS6218352U (en) | 1987-02-03 |
Family
ID=30987342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10933885U Pending JPS6218352U (en) | 1985-07-17 | 1985-07-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02107440U (en) * | 1989-02-10 | 1990-08-27 |
-
1985
- 1985-07-17 JP JP10933885U patent/JPS6218352U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02107440U (en) * | 1989-02-10 | 1990-08-27 |