JPH03106133U - - Google Patents
Info
- Publication number
- JPH03106133U JPH03106133U JP1376590U JP1376590U JPH03106133U JP H03106133 U JPH03106133 U JP H03106133U JP 1376590 U JP1376590 U JP 1376590U JP 1376590 U JP1376590 U JP 1376590U JP H03106133 U JPH03106133 U JP H03106133U
- Authority
- JP
- Japan
- Prior art keywords
- bypass valve
- pressure turbocharger
- exhaust bypass
- exhaust
- air supply
- 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
- 230000007257 malfunction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Supercharger (AREA)
Description
第１図は本考案の一実施例の全体構成図；第２
図はＥＣＵにより実行される過給圧制御フローチ
ヤート図；第３図は運転状態に対応する排気バイ
パス弁の弁開度を示すマツプ。
１……エンジン、２……排気通路、３……高圧
段タービン、５……低圧段タービン、９……給気
通路、１０……電子式制御装置、１２……給気通
路、２１……排気バイパス通路、２２……排気バ
イパス弁、２３，２５，４３，７３……アクチユ
エータ、７５，９３，９５，９７，９９……三方
弁、８１……サブスロツトル弁、９２……スロツ
トル弁、Ｈ……高圧段ターボチヤージヤ、Ｌ……
低圧段ターボチヤージヤ。
Figure 1 is an overall configuration diagram of an embodiment of the present invention; Figure 2
The figure is a flowchart for supercharging pressure control executed by the ECU; FIG. 3 is a map showing the valve opening degree of the exhaust bypass valve corresponding to the operating state. DESCRIPTION OF SYMBOLS 1...Engine, 2...Exhaust passage, 3...High pressure stage turbine, 5...Low pressure stage turbine, 9...Air supply passage, 10...Electronic control device, 12...Air supply passage, 21... Exhaust bypass passage, 22... Exhaust bypass valve, 23, 25, 43, 73... Actuator, 75, 93, 95, 97, 99... Three-way valve, 81... Sub-throttle valve, 92... Throttle valve, H... ...High pressure stage turbocharger, L...
Low pressure stage turbocharger.
Claims (1)
ジヤとを直列配置し、上記高圧段ターボチヤージ
ヤの排気タービンを迂回する排気バイパス通路に
排気バイパス弁を設け、以つて機関運転状態に応
じて上記バイパス弁を開閉して、上記高圧段ター
ボチヤージヤの作動を制御する２段ターボ過給機
関の過給圧制御装置において、 上記排気バイパス弁の作動不良状態を検出する
手段を設けると共に、上記高圧段ターボチヤージ
ヤのコンプレツサより給気通路下流側に上記作動
不良状態に応じて機関への吸入空気量を制限する
給気絞り手段とを設けたことを特徴とする過給圧
制御装置。[Claims for Utility Model Registration] A low-pressure turbocharger and a high-pressure turbocharger are arranged in series, and an exhaust bypass valve is provided in an exhaust bypass passage that bypasses the exhaust turbine of the high-pressure turbocharger, so that the above-mentioned A supercharging pressure control device for a two-stage turbocharged engine that opens and closes a bypass valve to control the operation of the high-pressure turbocharger, further comprising a means for detecting a malfunctioning state of the exhaust bypass valve; A supercharging pressure control device characterized in that an air supply throttle means is provided downstream of the compressor in the air supply passage for restricting the amount of air taken into the engine according to the malfunction condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1376590U JPH03106133U (en) | 1990-02-16 | 1990-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1376590U JPH03106133U (en) | 1990-02-16 | 1990-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03106133U true JPH03106133U (en) | 1991-11-01 |
Family
ID=31517160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1376590U Pending JPH03106133U (en) | 1990-02-16 | 1990-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03106133U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011033686A1 (en) | 2009-09-18 | 2011-03-24 | トヨタ自動車株式会社 | Control valve abnormality determination device for internal combustion engine |
| JP2011099332A (en) * | 2009-11-04 | 2011-05-19 | Hino Motors Ltd | Two-stage supercharging system |
| US8181509B2 (en) | 2009-07-16 | 2012-05-22 | Toyota Jidosha Kabushiki Kaisha | Apparatus for determining an abnormality of a control valve of an internal combustion engine |
| JP5051301B2 (en) * | 2009-07-16 | 2012-10-17 | トヨタ自動車株式会社 | Control valve abnormality determination device for internal combustion engine |
-
1990
- 1990-02-16 JP JP1376590U patent/JPH03106133U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8181509B2 (en) | 2009-07-16 | 2012-05-22 | Toyota Jidosha Kabushiki Kaisha | Apparatus for determining an abnormality of a control valve of an internal combustion engine |
| JP5051301B2 (en) * | 2009-07-16 | 2012-10-17 | トヨタ自動車株式会社 | Control valve abnormality determination device for internal combustion engine |
| US8522551B2 (en) | 2009-07-16 | 2013-09-03 | Toyota Jidosha Kabushiki Kaisha | Apparatus for determining an abnormality of a control valve of an internal combustion engine |
| WO2011033686A1 (en) | 2009-09-18 | 2011-03-24 | トヨタ自動車株式会社 | Control valve abnormality determination device for internal combustion engine |
| JP2011099332A (en) * | 2009-11-04 | 2011-05-19 | Hino Motors Ltd | Two-stage supercharging system |