JPH0363753U - - Google Patents
Info
- Publication number
- JPH0363753U JPH0363753U JP12577089U JP12577089U JPH0363753U JP H0363753 U JPH0363753 U JP H0363753U JP 12577089 U JP12577089 U JP 12577089U JP 12577089 U JP12577089 U JP 12577089U JP H0363753 U JPH0363753 U JP H0363753U
- Authority
- JP
- Japan
- Prior art keywords
- differential pressure
- pressure switch
- alarm
- exhaust gas
- gas recirculation
- 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 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は、本考案に係る排気ガス再循環制御装
置の一実施例を示すシステム構成図、第２図は、
本考案のコントローラ（ＥＣＭ）において記憶さ
れ且つ実行されるプログラムのフローチヤート図
、である。
第１図において、１……ＥＧＲ管、２……オリ
フイス、３……差圧スイツチ、４……ＥＧＲ弁、
７……負荷センサ、８……回転数センサ、９……
エンジンチエツクランプ、１０……コントローラ
（ＥＣＭ）をそれぞれ示す。
FIG. 1 is a system configuration diagram showing an embodiment of the exhaust gas recirculation control device according to the present invention, and FIG.
FIG. 3 is a flowchart of a program stored and executed in the controller (ECM) of the present invention; In Fig. 1, 1... EGR pipe, 2... Orifice, 3... Differential pressure switch, 4... EGR valve,
7...Load sensor, 8...Rotation speed sensor, 9...
Engine check clamp, 10... indicates a controller (ECM), respectively.
Claims (1)
段と、吸気管と排気管とを接続するＥＧＲ管に設
けたオリフイスと、該オリフイスの前後差圧が所
定値を越えたとき作動する差圧スイツチと、ＥＧ
Ｒ制御時に該回転数及び負荷に対応して該前後差
圧が該所定値を越えるべきときに該差圧スイツチ
が作動しなかつたときアラームを発生する制御手
段と、を備えたことを特徴とする排気ガス再循環
制御装置。 (2) 該制御手段が、ＥＧＲ非制御時に該差圧ス
イツチが作動したことを検出したときアラームを
発生することを特徴とする請求項(1)記載の排気
ガス再循環制御装置。[Scope of Claim for Utility Model Registration] (1) Engine speed detection means, load detection means, orifice provided in the EGR pipe that connects the intake pipe and exhaust pipe, and the differential pressure across the orifice set to a predetermined value. A differential pressure switch that operates when the pressure exceeds EG
It is characterized by comprising a control means that generates an alarm when the differential pressure switch does not operate when the differential pressure across the front and rear should exceed the predetermined value in accordance with the rotational speed and load during R control. Exhaust gas recirculation control device. (2) The exhaust gas recirculation control device according to claim (1), wherein the control means generates an alarm when detecting that the differential pressure switch is activated when EGR is not controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12577089U JPH0363753U (en) | 1989-10-27 | 1989-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12577089U JPH0363753U (en) | 1989-10-27 | 1989-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0363753U true JPH0363753U (en) | 1991-06-21 |
Family
ID=31673624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12577089U Pending JPH0363753U (en) | 1989-10-27 | 1989-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0363753U (en) |
-
1989
- 1989-10-27 JP JP12577089U patent/JPH0363753U/ja active Pending