JPH0345444U - - Google Patents
Info
- Publication number
- JPH0345444U JPH0345444U JP10713089U JP10713089U JPH0345444U JP H0345444 U JPH0345444 U JP H0345444U JP 10713089 U JP10713089 U JP 10713089U JP 10713089 U JP10713089 U JP 10713089U JP H0345444 U JPH0345444 U JP H0345444U
- Authority
- JP
- Japan
- Prior art keywords
- control
- exhaust gas
- gas recirculation
- engine
- amount
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electrical Control Of Ignition Timing (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の制御装置を装備した内燃エン
ジンを示す全体構成図、第２図は排気還流の制御
プログラムを示すフローチヤート、第３図は供給
燃料量及び点火時期の制御プログラムを示すフロ
ーチヤート、第４図は第３図の所定カウント値η
ＥＯＮ，ηＥＯＦＦの値を示すテーブル、第５図
は実弁開度値ＬＡＣＴと排気還流ガスの燃焼室へ
の実際の到達との関係を示すタイミングチヤート
、第６図はＥＧＲ作動領域とマツプ切換え禁止範
囲との関係を示すタイミングチヤートである。
１……内燃エンジン、２……吸気管、５……電
子コントロールユニツト（ＥＣＵ）、７……吸気
管内絶対圧センサ、１１……排気管、２０……排
気還流機構、２１……排気還流路、２２……排気
還流弁（ＥＧＲ制御弁）。
Fig. 1 is an overall configuration diagram showing an internal combustion engine equipped with the control device of the present invention, Fig. 2 is a flow chart showing a control program for exhaust gas recirculation, and Fig. 3 is a flow chart showing a control program for supplying fuel amount and ignition timing. Chart, Figure 4 shows the predetermined count value η of Figure 3.
A table showing the values of EON and ηEOFF, Fig. 5 is a timing chart showing the relationship between the actual valve opening value LACT and the actual arrival of exhaust gas recirculation into the combustion chamber, and Fig. 6 shows the EGR operating range and map switching prohibition. This is a timing chart showing the relationship with the range. DESCRIPTION OF SYMBOLS 1... Internal combustion engine, 2... Intake pipe, 5... Electronic control unit (ECU), 7... Absolute pressure sensor in intake pipe, 11... Exhaust pipe, 20... Exhaust recirculation mechanism, 21... Exhaust recirculation path , 22...Exhaust recirculation valve (EGR control valve).
Claims (1)
手段と、該負荷検出手段の出力に応じて前記エン
ジンへの供給燃料量及び該エンジンの点火時期の
うちの少なくとも一方の制御量を決定する制御量
決定手段と、前記エンジンの排気還流量を制御す
るＥＧＲ制御弁と、該ＥＧＲ制御弁の作動時に前
記制御量決定手段によつて決定される前記制御量
を変更する制御量変更手段とを備えた排気還流装
置を有する内燃エンジンの制御装置において、前
記エンジンの運転状態が排気還流を行なうべき運
転領域にあるか否かを判別し、該運転領域にない
と判別されたとき前記制御量変更手段の作動を禁
止する禁止手段を備えたことを特徴とする排気還
流装置を有する内燃エンジンの制御装置。 ２ 前記禁止手段は、前記エンジンの運転状態が
排気還流を行なうべき運転領域にないと判別され
た時点から所定期間後に前記制御量変更手段の作
動を禁止することを特徴とする請求項１記載の排
気還流装置を有する内燃エンジンの制御装置。[Claims for Utility Model Registration] 1. Load detection means for detecting the load state of an internal combustion engine, and at least one of the amount of fuel supplied to the engine and the ignition timing of the engine according to the output of the load detection means. a control amount determining means for determining a control amount; an EGR control valve for controlling an exhaust gas recirculation amount of the engine; and a control for changing the control amount determined by the control amount determining means when the EGR control valve is operated. In a control device for an internal combustion engine having an exhaust gas recirculation device equipped with an amount changing means, it is determined whether the operating state of the engine is in an operating region where exhaust gas recirculation should be performed, and it is determined that it is not in the operating region. A control device for an internal combustion engine having an exhaust gas recirculation device, characterized in that the control device includes prohibition means for prohibiting the operation of the control amount changing means when the control amount changing means is activated. 2. The inhibiting means prohibits the operation of the control amount changing means after a predetermined period from the time when it is determined that the operating state of the engine is not in an operating range where exhaust gas recirculation should be performed. Control device for an internal combustion engine with an exhaust gas recirculation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10713089U JPH0345444U (en) | 1989-09-12 | 1989-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10713089U JPH0345444U (en) | 1989-09-12 | 1989-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345444U true JPH0345444U (en) | 1991-04-26 |
Family
ID=31655838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10713089U Pending JPH0345444U (en) | 1989-09-12 | 1989-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345444U (en) |
-
1989
- 1989-09-12 JP JP10713089U patent/JPH0345444U/ja active Pending
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