JPS59179249U - fuel injected spark ignition engine - Google Patents
fuel injected spark ignition engineInfo
- Publication number
- JPS59179249U JPS59179249U JP7300083U JP7300083U JPS59179249U JP S59179249 U JPS59179249 U JP S59179249U JP 7300083 U JP7300083 U JP 7300083U JP 7300083 U JP7300083 U JP 7300083U JP S59179249 U JPS59179249 U JP S59179249U
- Authority
- JP
- Japan
- Prior art keywords
- spark ignition
- fuel injection
- cylinder
- ignition engine
- load state
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の燃料噴射式火花点火機関のシステム系統
図、第２図はその燃料噴射タイミングチャート、第３図
は本考案の構成を示す概要図、第４図は本考案の一実施
例を示すシステム系統図、第５図はその燃料噴射タイミ
ングチャート、第６図は本考案と従来例による火花点火
機関のＨＣ濃度、燃料消費率を比較して示すグラフ、第
７図は同じく全負荷時の軸トルクを比較して示すグラフ
、第８図、第９図は第４図中のコントロールユニットに
より実行される噴射時期決定プログラムのフローチャー
トである。 ″
１：気筒、２：吸気弁、３：点火プラグ、４：吸気管、
９：気筒判別信号を発生するクランク角センサ、１３：
負荷状態判定機能および噴射時期決定機能を有するコン
トロールユニット、１４：燃料噴射弁、１５：吸気ポー
ト、１６：負荷検出信号を出力する吸入負圧センサ、１
０１，１０２：負荷状態判定手段に対応するステップ、
１０３〜１２０．１００１〜１００７：噴射時期決定手
段に対応するステ゛ンプ。Figure 1 is a system diagram of a conventional fuel injection spark ignition engine, Figure 2 is its fuel injection timing chart, Figure 3 is a schematic diagram showing the configuration of the present invention, and Figure 4 is an embodiment of the present invention. Fig. 5 is a fuel injection timing chart, Fig. 6 is a graph comparing the HC concentration and fuel consumption rate of the spark ignition engine according to the present invention and the conventional example, and Fig. 7 is the same at full load. 8 and 9 are flowcharts of the injection timing determination program executed by the control unit in FIG. 4. ″ 1: Cylinder, 2: Intake valve, 3: Spark plug, 4: Intake pipe,
9: Crank angle sensor that generates a cylinder discrimination signal, 13:
A control unit having a load state determination function and an injection timing determination function, 14: Fuel injection valve, 15: Intake port, 16: Intake negative pressure sensor that outputs a load detection signal, 1
01, 102: Step corresponding to load state determination means,
103-120.1001-1007: Stamps corresponding to injection timing determining means.
Claims (1)
あたり、機関２回転ごとに１回燃料噴射を行なう火花点
火機関において、機関の負荷を検出する手段と、機関の
回転に関連して各気筒ごと（こ燃料噴射時期を決定する
ための基準タイミングを与える気筒判別信号を発生する
手段と、負荷検出信号により低負荷状態か高負荷状態か
を判定する手段と、負荷状態の判定結果により前記気筒
判別信号を基準として低負荷状態と高負荷状態とにそれ
ぞれ適応した異なる時期に各気筒の燃料噴射弁を作動さ
せる噴射時期決定手段とを具備することを特徴とする燃
料噴射式火花点火機関。In a spark ignition engine, in which fuel is injected once every two revolutions of the engine per cylinder from a fuel injection valve installed in the intake system of each cylinder, there is a means for detecting the engine load, and means for generating a cylinder discrimination signal that provides a reference timing for determining fuel injection timing; means for determining whether the load is in a low load state or a high load state based on a load detection signal; A fuel injection spark ignition engine characterized by comprising injection timing determining means for operating the fuel injection valves of each cylinder at different times adapted to a low load state and a high load state, respectively, based on a cylinder discrimination signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7300083U JPS59179249U (en) | 1983-05-18 | 1983-05-18 | fuel injected spark ignition engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7300083U JPS59179249U (en) | 1983-05-18 | 1983-05-18 | fuel injected spark ignition engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59179249U true JPS59179249U (en) | 1984-11-30 |
Family
ID=30203137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7300083U Pending JPS59179249U (en) | 1983-05-18 | 1983-05-18 | fuel injected spark ignition engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59179249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106947A (en) * | 1984-10-30 | 1986-05-24 | Mazda Motor Corp | Fuel injection timing control device |
-
1983
- 1983-05-18 JP JP7300083U patent/JPS59179249U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106947A (en) * | 1984-10-30 | 1986-05-24 | Mazda Motor Corp | Fuel injection timing control device |
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