JPH0256863U - - Google Patents
Info
- Publication number
- JPH0256863U JPH0256863U JP13577388U JP13577388U JPH0256863U JP H0256863 U JPH0256863 U JP H0256863U JP 13577388 U JP13577388 U JP 13577388U JP 13577388 U JP13577388 U JP 13577388U JP H0256863 U JPH0256863 U JP H0256863U
- Authority
- JP
- Japan
- Prior art keywords
- ignition timing
- octane number
- advance amount
- correction advance
- fuel used
- 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
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
Landscapes
- Electrical Control Of Ignition Timing (AREA)
Description
第1図は第1実施例の点火進角演算ルーチンを
示すフローチヤート、第2図は本考案が適用可能
な点火時期制御装置を備えた内燃機関を示す概略
図、第3図は第2実施例に係る点火時期演算ルー
チを示すフローチヤート、第4図はオクタン価の
違いによる基本点火時期を学習により定める点火
時期演算ルーチを示すフローチヤート、第5図A
乃至Cは従来に係る冷間時の点火時期を示す特性
図である。
16……気筒判別センサ、18……回転角セン
サ、20……制御回路、24……エアフロメータ
、30……機関冷却水温センサ、34……ノツキ
ングセンサ。
FIG. 1 is a flowchart showing the ignition advance calculation routine of the first embodiment, FIG. 2 is a schematic diagram showing an internal combustion engine equipped with an ignition timing control device to which the present invention can be applied, and FIG. 3 is a flowchart showing the ignition advance calculation routine of the first embodiment. Flowchart showing the ignition timing calculation routine according to the example, FIG. 4 is a flowchart showing the ignition timing calculation routine that determines the basic ignition timing based on the difference in octane number by learning, FIG. 5A
FIGS. 7A to 7C are characteristic diagrams showing the ignition timing in a cold state according to the related art. 16... Cylinder discrimination sensor, 18... Rotation angle sensor, 20... Control circuit, 24... Air flow meter, 30... Engine cooling water temperature sensor, 34... Knocking sensor.
Claims (1)
のオクタン価が低いときより点火時期を進角させ
るように制御する内燃機関の点火時期制御装置で
あつて、機関の暖機中の機関温度に基づいて点火
時期の補正進角量を定める補正進角量設定手段と
、前記使用燃料のオクタン価が高いときにはオク
タン価が低いときよりも前記補正進角量設定手段
で定めた補正進角量を小さくする制御手段と、を
有する内燃機関の点火時期制御装置。 An ignition timing control device for an internal combustion engine that controls the ignition timing to be advanced when the octane number of the fuel used is high compared to when the octane number of the fuel used is low. a correction advance amount setting means for determining a correction advance amount; and a control means for reducing the correction advance amount set by the correction advance amount setting means when the octane number of the fuel used is high than when the octane number is low. An ignition timing control device for an internal combustion engine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13577388U JPH0256863U (en) | 1988-10-18 | 1988-10-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13577388U JPH0256863U (en) | 1988-10-18 | 1988-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0256863U true JPH0256863U (en) | 1990-04-24 |
Family
ID=31395671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13577388U Pending JPH0256863U (en) | 1988-10-18 | 1988-10-18 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0256863U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012082741A (en) * | 2010-10-12 | 2012-04-26 | Daihatsu Motor Co Ltd | Control device of internal combustion engine |
-
1988
- 1988-10-18 JP JP13577388U patent/JPH0256863U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012082741A (en) * | 2010-10-12 | 2012-04-26 | Daihatsu Motor Co Ltd | Control device of internal combustion engine |
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