JPS6243150U - - Google Patents
Info
- Publication number
- JPS6243150U JPS6243150U JP13503585U JP13503585U JPS6243150U JP S6243150 U JPS6243150 U JP S6243150U JP 13503585 U JP13503585 U JP 13503585U JP 13503585 U JP13503585 U JP 13503585U JP S6243150 U JPS6243150 U JP S6243150U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- post
- fuel
- starting
- air
- 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 21
- 238000002485 combustion reaction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims 3
- 238000011084 recovery Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の構成を説明するための全体ブ
ロツク図、第２図は本考案に係る内燃機関の空燃
比制御装置の一実施例を示す全体概略図、第３図
〜第５図はは第２図の制御回路の動作を説明する
ためのフローチヤート、第６図は本考案の効果を
説明するためのタイミング図である。
１：機関本体、３：圧力センサ、４：デイスト
リビユータ、７：水温センサ、８：メインインジ
エクタ、９：コールドスタートインジエクタ、１
０：制御回路、１１：バイメタルスイツチ、１３
：スタータスイツチ。
FIG. 1 is an overall block diagram for explaining the configuration of the present invention, FIG. 2 is an overall schematic diagram showing an embodiment of an air-fuel ratio control device for an internal combustion engine according to the present invention, and FIGS. 3 to 5 are is a flowchart for explaining the operation of the control circuit of FIG. 2, and FIG. 6 is a timing diagram for explaining the effects of the present invention. 1: Engine body, 3: Pressure sensor, 4: Distributor, 7: Water temperature sensor, 8: Main injector, 9: Cold start injector, 1
0: Control circuit, 11: Bimetal switch, 13
: Starter switch.
Claims (1)
が第１の所定値以下且つ前記機関の始動時に駆動
されるコールドスタートインジエクタを具備する
内燃機関において、 前記機関が始動状態か否かを判別する機関始動
判別手段と、 前記機関の冷却水温が前記第１の所定値以下且
つ該第１の所定値より小さい第２の所定値以上の
範囲内か否かを判別する冷却水温判別手段と、 前記機関が始動状態にあり且つ前記冷却水温が
前記範囲内のときに始動後燃料減量値を演算する
始動後燃料減量値演算手段と、 前記機関の始動状態時に前記冷却水温に応じて
始動時燃料量を演算する始動時燃料量演算手段と
、 前記機関の始動状態後に前記始動後燃料減量値
を所定クランク角もしくは時間毎に回復させる回
復手段と、 前記機関の始動状態後に前記機関の所定運転状
態パラメータに応じて始動後燃料量を演算する始
動後燃料量演算手段と、 前記始動後燃料量を前記回復された始動後燃料
減量値により補正する始動後燃料減量手段と、 前記機関の始動状態にあつては前記始動時燃料
量に応じて前記機関の空燃比を調整し、前記機関
の始動状態後にあつては前記補正された始動後燃
料量に応じて前記機関の空燃比を調整する空燃比
調整手段と、 を具備する内燃機関の空燃比制御装置。 ２ 前記回復手段の回復速度をフアーストアイド
リング調整用始動後増量値の減衰速度より著しく
大きく設定した実用新案登録請求の範囲第１項に
記載の内燃機関の空燃比制御装置。 ３ 前記始動後燃料減量値は前記冷却水温に応じ
て設定される実用新案登録請求の範囲第１項に記
載の内燃機関の空燃比制御装置。[Claims for Utility Model Registration] 1. In an internal combustion engine comprising a main injector and a cold start injector that is driven when the engine's cooling water temperature is below a first predetermined value and when the engine is started, the engine is in a starting state. engine start determination means for determining whether or not the engine start-up determination means; water temperature determining means; post-start fuel loss value calculating means for calculating a post-start fuel loss value when the engine is in a starting state and the cooling water temperature is within the range; a starting fuel amount calculation means for calculating a starting fuel amount according to the engine starting state; a recovery means for restoring the post-starting fuel reduction value at a predetermined crank angle or every predetermined time period after the engine starting state; a post-start fuel amount calculation means for calculating a post-start fuel amount according to a predetermined operating state parameter of the engine; a post-start fuel reduction means for correcting the post-start fuel amount by the recovered post-start fuel reduction value; When the engine is in a starting state, the air-fuel ratio of the engine is adjusted according to the starting fuel amount, and after the engine is starting, the air-fuel ratio of the engine is adjusted according to the corrected post-starting fuel amount. An air-fuel ratio control device for an internal combustion engine, comprising: an air-fuel ratio adjusting means for adjusting the air-fuel ratio; 2. The air-fuel ratio control device for an internal combustion engine according to claim 1, wherein the recovery speed of the recovery means is set significantly higher than the attenuation speed of the post-start increase value for fast idling adjustment. 3. The air-fuel ratio control device for an internal combustion engine according to claim 1, wherein the post-start fuel reduction value is set according to the cooling water temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13503585U JPS6243150U (en) | 1985-09-05 | 1985-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13503585U JPS6243150U (en) | 1985-09-05 | 1985-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6243150U true JPS6243150U (en) | 1987-03-16 |
Family
ID=31036834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13503585U Pending JPS6243150U (en) | 1985-09-05 | 1985-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6243150U (en) |
-
1985
- 1985-09-05 JP JP13503585U patent/JPS6243150U/ja active Pending
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