JPS6194279U - - Google Patents
Info
- Publication number
- JPS6194279U JPS6194279U JP17958784U JP17958784U JPS6194279U JP S6194279 U JPS6194279 U JP S6194279U JP 17958784 U JP17958784 U JP 17958784U JP 17958784 U JP17958784 U JP 17958784U JP S6194279 U JPS6194279 U JP S6194279U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas recirculation
- engine
- sensor
- speed
- 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
- 230000003134 recirculating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は、本考案に係る車両用デイーゼル機関
の排気ガス再循環制御装置の要旨を示すブロツク
線図、第２図は、本考案が採用された自動車用デ
イーゼルエンジンの実施例の全体構成を示す、一
部断面図を含むブロツク線図、第３図は、前記実
施例で用いられている電子制御ユニツトの構成を
示すブロツク線図、第４図は、同じく排気ガス再
循環量を制御するための処理手順を示す流れ図、
第５図は、前記実施例における排気ガス再循環制
御特性を示す線図、第６図は、従来例における排
気ガス再循環制御特性の例を示す線図である。
１０……デイーゼルエンジン、１２……燃料噴
射ノズル、３０……燃料噴射ポンプ、３６……排
気ガス再循環量制御弁（ＥＧＲ弁）、３８……ダ
イヤフラム装置、４２……負圧調整弁、４６……
負圧ポンプ、４８……電子制御ユニツト（ＥＣＵ
）、５１……回転数センサ、５４……アクセル開
度センサ、５６……車速センサ。
Fig. 1 is a block diagram showing the gist of the exhaust gas recirculation control device for a vehicle diesel engine according to the present invention, and Fig. 2 shows the overall configuration of an embodiment of an automobile diesel engine in which the present invention is adopted. FIG. 3 is a block diagram showing the configuration of the electronic control unit used in the above embodiment, and FIG. 4 is a block diagram showing the configuration of the electronic control unit used in the above embodiment. a flowchart showing the processing steps for
FIG. 5 is a diagram showing the exhaust gas recirculation control characteristics in the embodiment, and FIG. 6 is a diagram showing an example of the exhaust gas recirculation control characteristics in the conventional example. 10... Diesel engine, 12... Fuel injection nozzle, 30... Fuel injection pump, 36... Exhaust gas recirculation amount control valve (EGR valve), 38... Diaphragm device, 42... Negative pressure regulating valve, 46 ……
Negative pressure pump, 48...Electronic control unit (ECU)
), 51... Rotation speed sensor, 54... Accelerator opening sensor, 56... Vehicle speed sensor.
Claims (1)
応じて排気ガス再循環量が制御される車両用デイ
ーゼル機関の排気ガス再循環制御装置において、 エンジン負荷を検出するための負荷センサと、 エンジン回転数を検出するための回転数センサ
と、 アクセル開度を検出するためのアクセル開度セ
ンサと、 車両の走行速度を検出するための車速センサと
、 エンジン回転数が設定値以上である時は、少く
ともエンジン負荷とエンジン回転数に応じて通常
の排気ガス再循環制御を行い、一方、エンジン回
転数が設定値未満である時は、アクセル開度が設
定値以下であり、且つ、車速が零である時のみ排
気ガス再循環を行うための排気ガス再循環制御手
段と、 該排気ガス再循環制御手段の出力に応じて、排
気ガス再循環量を制御するための排気ガス再循環
制御アクチユエータと、 を備えたことを特徴とする車両用デイーゼル機関
の排気ガス再循環制御装置。 (2) 前記エンジン負荷がアクセル開度から検出
するようにされ、前記負荷センサとアクセル開度
センサが共用されている実用新案登録請求の範囲
第１項記載の車両用デイゼル機関の排気ガス再循
環制御装置。[Scope of Claim for Utility Model Registration] (1) For detecting engine load in an exhaust gas recirculation control device for a vehicle diesel engine in which the amount of exhaust gas recirculation is controlled according to at least the engine load and engine speed. load sensor, a rotation speed sensor to detect the engine rotation speed, an accelerator opening sensor to detect the accelerator opening degree, a vehicle speed sensor to detect the vehicle running speed, and a rotation speed sensor to detect the engine rotation speed. When the value is above the set value, normal exhaust gas recirculation control is performed at least according to the engine load and engine speed, while when the engine speed is less than the set value, the accelerator opening is below the set value. Exhaust gas recirculation control means for recirculating exhaust gas only when the vehicle speed is zero; and Exhaust gas recirculation control means for controlling the amount of exhaust gas recirculation according to the output of the exhaust gas recirculation control means. An exhaust gas recirculation control device for a vehicle diesel engine, comprising: an exhaust gas recirculation control actuator; (2) Exhaust gas recirculation of a vehicle diesel engine according to claim 1, wherein the engine load is detected from the accelerator opening, and the load sensor and the accelerator opening sensor are commonly used. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17958784U JPS6194279U (en) | 1984-11-27 | 1984-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17958784U JPS6194279U (en) | 1984-11-27 | 1984-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6194279U true JPS6194279U (en) | 1986-06-18 |
Family
ID=30737152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17958784U Pending JPS6194279U (en) | 1984-11-27 | 1984-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6194279U (en) |
-
1984
- 1984-11-27 JP JP17958784U patent/JPS6194279U/ja active Pending
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