JPH01174575U - - Google Patents
Info
- Publication number
- JPH01174575U JPH01174575U JP7205888U JP7205888U JPH01174575U JP H01174575 U JPH01174575 U JP H01174575U JP 7205888 U JP7205888 U JP 7205888U JP 7205888 U JP7205888 U JP 7205888U JP H01174575 U JPH01174575 U JP H01174575U
- Authority
- JP
- Japan
- Prior art keywords
- ignition timing
- current
- basic
- limit value
- setting
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Electrical Control Of Ignition Timing (AREA)
Description
第１図は本考案の基本概念図、第２〜５図は本
考案に係る内燃機関の点火時期制御装置の一実施
例を示す図であり、第２図はその全体構成図、第
３図はその変化幅制限値を求めるプログラムを示
すフローチヤート、第４図はその変化幅制限値を
求めるテーブルマツプ、第５図はその点火時期制
御のプログラムを示すフローチヤート、第６，７
図は従来の内燃機関の点火時期制御装置の特性を
示す図であり、第６図はその点火時期と負荷の関
係を示す図、第７図はそのトルクと点火時期の関
係を示す図である。
１……エンジン、１０……点火手段、１５……
車速センサ（車速検出手段）、１６……運転状態
検出手段、１７……コントロールユニツト（基準
値設定手段、制限値設定手段、点火時期決定手段
）。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 5 are diagrams showing an embodiment of an ignition timing control device for an internal combustion engine according to the present invention, Fig. 2 is an overall configuration diagram thereof, and Fig. 3 is a diagram showing an embodiment of the ignition timing control device for an internal combustion engine according to the present invention. is a flowchart showing a program for determining the variation range limit value, FIG. 4 is a table map for obtaining the variation range limit value, FIG. 5 is a flowchart showing the ignition timing control program, and numbers 6 and 7
The figure is a diagram showing the characteristics of a conventional ignition timing control device for an internal combustion engine, FIG. 6 is a diagram showing the relationship between its ignition timing and load, and FIG. 7 is a diagram showing the relationship between its torque and ignition timing. . 1... Engine, 10... Ignition means, 15...
Vehicle speed sensor (vehicle speed detection means), 16... driving state detection means, 17... control unit (reference value setting means, limit value setting means, ignition timing determining means).
Claims (1)
出手段と、 (b) 車両の速度を検出する車速検出手段と、 (c) 運転状態検出手段の出力に基づいて基本点
火時期を設定する基本値設定手段と、 (d) 車速に応じて前回の点火時期と今回の点火
時期との差を制限する制限値を設定する制限値設
定手段と、 (e) 基本値設定手段により設定された今回の基
本点火時期と前回の点火時期との差が前記制限値
以下となるように該今回の点火時期を制限して今
回の実行点火時期を決定する点火時期決定手段と
、 (f) 点火時期決定手段の出力に基づいて混合気
に点火する点火手段と、 を備えたことを特徴とする内燃機関の点火時期制
御装置。[Scope of Claim for Utility Model Registration] (a) Operating state detection means for detecting the operating state of the engine; (b) Vehicle speed detection means for detecting the speed of the vehicle; (c) Based on the output of the operating state detection means. basic value setting means for setting a basic ignition timing; (d) limit value setting means for setting a limit value for limiting the difference between the previous ignition timing and the current ignition timing according to vehicle speed; and (e) a basic value. ignition timing determining means for determining the current effective ignition timing by limiting the current ignition timing so that the difference between the current basic ignition timing set by the setting means and the previous ignition timing is equal to or less than the limit value; , (f) ignition means for igniting the air-fuel mixture based on the output of the ignition timing determining means; An ignition timing control device for an internal combustion engine, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7205888U JPH01174575U (en) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7205888U JPH01174575U (en) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174575U true JPH01174575U (en) | 1989-12-12 |
Family
ID=31297236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7205888U Pending JPH01174575U (en) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174575U (en) |
-
1988
- 1988-05-30 JP JP7205888U patent/JPH01174575U/ja active Pending