JPH0363740U - - Google Patents
Info
- Publication number
- JPH0363740U JPH0363740U JP12454989U JP12454989U JPH0363740U JP H0363740 U JPH0363740 U JP H0363740U JP 12454989 U JP12454989 U JP 12454989U JP 12454989 U JP12454989 U JP 12454989U JP H0363740 U JPH0363740 U JP H0363740U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- injection
- simultaneous injection
- cylinder
- crank angle
- 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
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 12
- 230000002950 deficient Effects 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
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示す機能ブロツク図、
第2図は本考案の一実施例を示すシステム図、第
3図及び第4図は始動時の噴射パターンを示すタ
イムチヤート、第5図は燃料不足気筒を示す図、
第6図は制御内容を示すフローチヤート、第7図
は従来の始動時の噴射パターンを示すタイムチヤ
ートである。
1……機関、7……燃料噴射弁、8……コント
ロールユニツト、9……エアフローメータ、10
……クランク角センサ、14a……スタートスイ
ツチ。
Figure 1 is a functional block diagram showing the configuration of the present invention.
FIG. 2 is a system diagram showing an embodiment of the present invention, FIGS. 3 and 4 are time charts showing the injection pattern at startup, and FIG. 5 is a diagram showing a fuel-deficient cylinder.
FIG. 6 is a flowchart showing control details, and FIG. 7 is a time chart showing a conventional injection pattern at startup. DESCRIPTION OF SYMBOLS 1... Engine, 7... Fuel injection valve, 8... Control unit, 9... Air flow meter, 10
...Crank angle sensor, 14a...Start switch.
Claims (1)
なくとも始動時にクランク角センサからの信号に
基づきクランク角720°につき2回全ての気筒
の燃料噴射弁により同時に燃料噴射させる同時噴
射手段を備える内燃機関の電子制御燃料噴射装置
において、1回目の同時噴射時にクランク角セン
サからの信号に基づいて1回目の同時噴射と2回
目の同時噴射との間に吸気行程を行う燃料不足気
筒を判別する燃料不足気筒判別手段と、前記同時
噴射手段による1回目の同時噴射時に前記燃料不
足気筒判別手段により判別された燃料不足気筒の
燃料噴射弁により倍量噴射させる倍量補正手段と
、を設けたことを特徴とする内燃機関の電子制御
燃料噴射装置。 The internal combustion engine is equipped with a fuel injection valve for each cylinder in the engine intake system, and a simultaneous injection means that causes the fuel injection valves of all cylinders to simultaneously inject fuel twice per 720 degrees of crank angle based on a signal from a crank angle sensor at least during startup. In an electronically controlled fuel injection system of an engine, a fuel that determines a fuel-deficient cylinder that performs an intake stroke between the first simultaneous injection and the second simultaneous injection based on the signal from the crank angle sensor at the time of the first simultaneous injection. The present invention further comprises: a deficient cylinder determining means; and a doubling amount correcting means for causing the fuel injector of the fuel deficient cylinder determined by the fuel deficient cylinder determining means to inject a double amount at the time of the first simultaneous injection by the simultaneous injection means. An electronically controlled fuel injection system for internal combustion engines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12454989U JPH0363740U (en) | 1989-10-26 | 1989-10-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12454989U JPH0363740U (en) | 1989-10-26 | 1989-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0363740U true JPH0363740U (en) | 1991-06-21 |
Family
ID=31672459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12454989U Pending JPH0363740U (en) | 1989-10-26 | 1989-10-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0363740U (en) |
-
1989
- 1989-10-26 JP JP12454989U patent/JPH0363740U/ja active Pending