JPH0332127U - - Google Patents
Info
- Publication number
- JPH0332127U JPH0332127U JP9266289U JP9266289U JPH0332127U JP H0332127 U JPH0332127 U JP H0332127U JP 9266289 U JP9266289 U JP 9266289U JP 9266289 U JP9266289 U JP 9266289U JP H0332127 U JPH0332127 U JP H0332127U
- Authority
- JP
- Japan
- Prior art keywords
- relief
- valve
- passage
- engine
- deceleration
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Supercharger (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
図面は本考案の実施例を示すもので、第１図は
過給機付エンジンの全体構成図、第２図はリリー
フ弁の断面図、第３図は異常検出制御のフローチ
ヤート、第４図はエアフローメータの検出信号の
説明図、第５図は過給機リリーフ制御を含むアイ
ドル回転数制御のフローチヤート、第６図はアイ
ドル目標回転数の特性図、第７図は基本制御量の
特性図、第８図はＦ／Ｂ補正量の特性図、第９図
はＩＳＣ弁開度などのタイムチヤートである。
２…吸気通路、４…エアフローメータ、６…タ
ーボチヤージヤ、８…スロツトル弁、１４…リリ
ーフ通路、１５…リリーフ弁、１７…バイパス通
路、１８…ＩＳＣ弁、２０…クランク角センサ、
２１…スロツトル開度センサ、２２…アイドルス
イツチ、２４…ニユートラルポジシヨンスイツチ
、３０…コントロールユニツト。
The drawings show an embodiment of the present invention: Fig. 1 is an overall configuration diagram of a supercharged engine, Fig. 2 is a sectional view of a relief valve, Fig. 3 is a flowchart of abnormality detection control, and Fig. 4 is an explanatory diagram of the detection signal of the air flow meter, Figure 5 is a flowchart of idle rotation speed control including supercharger relief control, Figure 6 is a characteristic diagram of idle target rotation speed, and Figure 7 is a characteristic of basic control amount. 8 is a characteristic diagram of the F/B correction amount, and FIG. 9 is a time chart of the ISC valve opening degree, etc. 2... Intake passage, 4... Air flow meter, 6... Turbo charger, 8... Throttle valve, 14... Relief passage, 15... Relief valve, 17... Bypass passage, 18... ISC valve, 20... Crank angle sensor,
21... Throttle opening sensor, 22... Idle switch, 24... Neutral position switch, 30... Control unit.
Claims (1)
ツトル弁とを備えるとともに過給機をバイパスす
るリリーフ通路及び減速時リリーフ通路を開放す
るリリーフ弁を備えたエンジンにおいて、 スロツトル弁をバイパスするバイパス通路及び
このバイパス通路に介設されたアイドルスピード
コントロールバルブと、 上記リリーフ弁の異常を検出する異常検出手段
及びエンジンの減速状態を検出する減速検出手段
と、 上記両検出手段の出力を受け、リリーフ弁が異
常状態となつたとき減速時にアイドルスピードコ
ントロールバルブの開度を増大させるリリーフ制
御手段とを備えたことを特徴とする過給機付エン
ジンの制御装置。[Scope of Claim for Utility Model Registration] In an engine in which an intake passage is equipped with a supercharger and a throttle valve in order from the upstream side, a relief passage that bypasses the supercharger, and a relief valve that opens the relief passage during deceleration. , a bypass passage that bypasses the throttle valve, an idle speed control valve interposed in the bypass passage, an abnormality detection means for detecting an abnormality of the relief valve, and a deceleration detection means for detecting a deceleration state of the engine, and both of the above detections. 1. A control device for a supercharged engine, comprising: relief control means for receiving an output from the means and increasing the opening degree of an idle speed control valve during deceleration when the relief valve is in an abnormal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266289U JPH0746737Y2 (en) | 1989-08-07 | 1989-08-07 | Control device for engine with supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266289U JPH0746737Y2 (en) | 1989-08-07 | 1989-08-07 | Control device for engine with supercharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0332127U true JPH0332127U (en) | 1991-03-28 |
| JPH0746737Y2 JPH0746737Y2 (en) | 1995-10-25 |
Family
ID=31642075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9266289U Expired - Lifetime JPH0746737Y2 (en) | 1989-08-07 | 1989-08-07 | Control device for engine with supercharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746737Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015068290A (en) * | 2013-09-30 | 2015-04-13 | 日産自動車株式会社 | Control device of internal combustion engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4717741B2 (en) * | 2006-07-20 | 2011-07-06 | 本田技研工業株式会社 | Failure detection device for air bypass valve in engine supercharger |
| US9810229B2 (en) * | 2014-12-08 | 2017-11-07 | Ford Global Technologies, Llc | Methods and systems for detecting compressor recirculation valve faults |
-
1989
- 1989-08-07 JP JP9266289U patent/JPH0746737Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015068290A (en) * | 2013-09-30 | 2015-04-13 | 日産自動車株式会社 | Control device of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0746737Y2 (en) | 1995-10-25 |