JPH0378959U - - Google Patents
Info
- Publication number
- JPH0378959U JPH0378959U JP13991589U JP13991589U JPH0378959U JP H0378959 U JPH0378959 U JP H0378959U JP 13991589 U JP13991589 U JP 13991589U JP 13991589 U JP13991589 U JP 13991589U JP H0378959 U JPH0378959 U JP H0378959U
- Authority
- JP
- Japan
- Prior art keywords
- misfire
- internal combustion
- combustion engine
- fuel
- event
- 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
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は空燃比制御装置及び蒸発燃料放出装置
を有する２サイクル内燃機関の模式図、第２図は
第１図の内燃機関のバルブタイミング線図、第３
図は同上の６気筒エンジンについての各気筒内排
気圧線図、第４図はＯ２センサ出力とＦＡＦとの
経時変化線図、第５図は失火判定ルーチンのフロ
ーチヤート、第６図は失火時噴射量減量ルーチン
のフローチヤート、第７図はパージコントロール
ルーチンのフローチヤートを示す。
１……２サイクル内燃機関、４……燃料噴射弁
、１２……Ｏ２センサ、１４……排気圧センサ、
２０……チヤコールキヤニスタ、２９……パージ
コントロールバルブ、４０……電子制御ユニツト
（ＥＣＵ）。
Fig. 1 is a schematic diagram of a two-stroke internal combustion engine having an air-fuel ratio control device and an evaporated fuel release device, Fig. 2 is a valve timing diagram of the internal combustion engine of Fig. 1, and Fig.
The figure is an exhaust pressure diagram in each cylinder for the same 6-cylinder engine as above, Figure 4 is a graph of changes over time between O2 sensor output and FAF, Figure 5 is a flowchart of the misfire determination routine, and Figure 6 is a misfire determination routine. FIG. 7 shows a flowchart of the purge control routine. 1... Two-cycle internal combustion engine, 4... Fuel injection valve, 12... O2 sensor, 14... Exhaust pressure sensor,
20...Charcoal canister, 29...Purge control valve, 40...Electronic control unit (ECU).
Claims (1)
量を減量する手段と、機関吸気通路内に蒸発燃料
を放出する手段を備える２サイクル内燃機関にお
いて、失火時には前記蒸発燃料の放出を禁止する
手段を有することを特徴とする２サイクル内燃機
関の蒸発燃料放出装置。 A two-stroke internal combustion engine comprising means for detecting a misfire and reducing the amount of fuel injected into a misfiring cylinder in the event of a misfire, and means for releasing evaporated fuel into an engine intake passage, comprising means for prohibiting the release of the evaporated fuel in the event of a misfire. A vaporized fuel discharge device for a two-stroke internal combustion engine, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13991589U JPH0378959U (en) | 1989-12-04 | 1989-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13991589U JPH0378959U (en) | 1989-12-04 | 1989-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0378959U true JPH0378959U (en) | 1991-08-12 |
Family
ID=31686931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13991589U Pending JPH0378959U (en) | 1989-12-04 | 1989-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0378959U (en) |
-
1989
- 1989-12-04 JP JP13991589U patent/JPH0378959U/ja active Pending
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