JPH0171173U - - Google Patents
Info
- Publication number
- JPH0171173U JPH0171173U JP1987166584U JP16658487U JPH0171173U JP H0171173 U JPH0171173 U JP H0171173U JP 1987166584 U JP1987166584 U JP 1987166584U JP 16658487 U JP16658487 U JP 16658487U JP H0171173 U JPH0171173 U JP H0171173U
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- crank angle
- angle position
- catalyst
- engine
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の構成図、第２図は本考案の実
施例を示すブロツク構成図、第３図、第４図は制
御内容を示すフローチヤートと演算に用いるデー
タの特性線図、第５図〜第８図は本考案の他の実
施例の制御内容を示すフローチヤートと酸素セン
サの出力特性図と演算に用いるデータの特性線図
である。
１１…エアフローセンサ、１２…クランク角セ
ンサ、１３〜１８…筒内圧センサ、１９…触媒、
２０…酸素センサ、２１…コントロールユニツト
、２２…点火装置。
Fig. 1 is a block diagram of the present invention, Fig. 2 is a block diagram showing an embodiment of the present invention, Figs. 5 to 8 are a flowchart showing the control contents of other embodiments of the present invention, an output characteristic diagram of an oxygen sensor, and a characteristic diagram of data used for calculation. 11...Air flow sensor, 12...Crank angle sensor, 13-18...Cylinder pressure sensor, 19...Catalyst,
20...Oxygen sensor, 21...Control unit, 22...Ignition device.
Claims (1)
となるピーククランク角位置を検出する手段と、
ピーククランク角位置が所定の目標クランク角位
置となるように点火時期を補正制御する手段とを
設ける一方、機関排気系に触媒や酸素センサを設
置した内燃機関において、前記触媒の温度を検出
する手段もしくは酸素センサの活性状態を検出す
る手段の少なくとも一方と、この検出値に応じて
前記目標クランク角位置を変更する手段とを設け
たことを特徴とする内燃機関の点火時期制御装置
。 means for detecting the cylinder pressure of the engine; means for detecting the peak crank angle position at which the cylinder pressure is maximum;
Means for correcting and controlling the ignition timing so that the peak crank angle position becomes a predetermined target crank angle position, and means for detecting the temperature of the catalyst in an internal combustion engine in which a catalyst and an oxygen sensor are installed in the engine exhaust system. Alternatively, an ignition timing control device for an internal combustion engine, comprising at least one of means for detecting an active state of an oxygen sensor and means for changing the target crank angle position according to the detected value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987166584U JPH0171173U (en) | 1987-10-30 | 1987-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987166584U JPH0171173U (en) | 1987-10-30 | 1987-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0171173U true JPH0171173U (en) | 1989-05-12 |
Family
ID=31454098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987166584U Pending JPH0171173U (en) | 1987-10-30 | 1987-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0171173U (en) |
-
1987
- 1987-10-30 JP JP1987166584U patent/JPH0171173U/ja active Pending