JPS58138237A - Suction air quantity control method of diesel engine - Google Patents
Suction air quantity control method of diesel engineInfo
- Publication number
- JPS58138237A JPS58138237A JP1812082A JP1812082A JPS58138237A JP S58138237 A JPS58138237 A JP S58138237A JP 1812082 A JP1812082 A JP 1812082A JP 1812082 A JP1812082 A JP 1812082A JP S58138237 A JPS58138237 A JP S58138237A
- Authority
- JP
- Japan
- Prior art keywords
- diesel engine
- intake
- suction
- throttle valve
- rotated
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ディー（ルエンジンの吸入空気量制御方法に
関する・
ディーゼルエンジンのアイドリンク時や低負荷時の振動
、騒音を低減させゐ有効な手段の一つに吸気絞ｐ装置が
ある。これはエンジンの吸入空気供給通路に設けられ、
エンジン条件に応じて供給通路断面積を変化せしめて吸
入空気量の制御を行なう鯨置であシ、特にアイドリンク
時又は低負荷時に吸入空気量を低減することによシ振動
、騒音を低下させることができる。しかし、前記吸気絞
如を始動時にも用いた場合、始動性が非常に悪化す石、
その理由は、始動時に吸気絞如を行なった場合、吸入行
程終了時の圧力が吸気絞シなしの場合に比べて低くなる
ことにより、圧縮上死点付近で圧力が低下するため、燃
料が噴射されても圧縮着火しに＜＜、また仮に着火して
も燃焼状態が＃［常に悪くなり始動所要時間が長くなる
ためである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the amount of intake air in a diesel engine. There is a p device.This is installed in the intake air supply passage of the engine,
This is a mount system that controls the amount of intake air by changing the cross-sectional area of the supply passage depending on the engine conditions, and reduces vibration and noise by reducing the amount of intake air, especially during idling or low load. be able to. However, if the above-mentioned intake throttle is also used at the time of starting, the starting performance will be significantly deteriorated.
The reason for this is that if the intake throttle is used at startup, the pressure at the end of the intake stroke will be lower than when there is no intake throttle, and the pressure will drop near compression top dead center, causing the fuel to be injected. This is because compression ignition does not occur even if compression ignition occurs, and even if it does ignite, the combustion condition is always poor and the time required for starting becomes longer.
本発明の目的は、前述の従来形における間勉点に鑑み、
始動時には吸気絞ｐ親電を全開とするという構想にもと
づき、アイドリンク時又は低負荷時における振動、騒音
を低レベルに維持しつつ、吸気絞シ装置を有するディー
ゼルエンジンの始動性の悪化を防止することにある。The purpose of the present invention is to:
Based on the concept of fully opening the intake throttle p-electrode at startup, it maintains vibration and noise at a low level during idling or low load, while preventing deterioration in startability of diesel engines equipped with an intake throttle device. It's about doing.
本発明においては、ディーゼルエンジンＯＩＩ人空気供
給通路に設けられエンジン条件に応じて供給通路断面積
を変化せしめて吸入空気量のｔｉｔｎを行なうための吸
気絞シ装置を有するディー（ルエンジンを用い、始動時
検出手段によシ検出された始動時に前記吸気絞シ装置を
全開とするディセルエンジンの吸入空気量制御方法、が
提供される。In the present invention, a diesel engine is used which has an intake throttle device installed in the air supply passage of the diesel engine OII to change the cross-sectional area of the supply passage according to engine conditions and titn the amount of intake air. A method for controlling the amount of intake air in a diesel engine is provided, in which the intake throttle device is fully opened at the time of startup detected by a startup detection means.
本発明の一実施例としてのディーゼルエンジンの吸入空
気量制御方法を行う装置が縞１図に示される。第１図装
置における吸気絞シ装置５の構成が第２図に示される。DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for performing an intake air amount control method for a diesel engine as an embodiment of the present invention is shown in FIG. The configuration of the intake throttle device 5 in the device shown in FIG. 1 is shown in FIG.
第１Ｉｆｆにおいてｌはエンジン本体、２はインテーク
マニホルド、３は吸入空気供給通路、４はエアクリー−
すである吸入空気供給通路３内には吸気絞シ装置すが設
けられている。In the first If, l is the engine body, 2 is the intake manifold, 3 is the intake air supply passage, and 4 is the air cleaner.
An intake air restrictor is provided in the intake air supply passage 3.
吸入空気供給通路３の内個に楕円形をした吸気絞シ弁５
１およびこの弁５１の中心部を通るように吸気絞シ弁５
１に固定されたシャフト５２を有し、シャフト５２は吸
入空気供給通路３０外個へ延長され、先端にはレバー５
４が固定されている。レバー５４にはワイヤ５５が接続
されておル、このワイヤ５５を矢印方向に引くとレバー
５４及びこれに連動し良シャフト５２、吸気絞シ弁５１
が回転する。ｔたレバー５４には、ワイヤ５５が引かれ
ない状態において吸無紋シ弁５１を全開位置までもどす
九めのバネ５３が付加されている。An elliptical intake throttle valve 5 inside the intake air supply passage 3
1 and an intake throttle valve 5 passing through the center of this valve 51.
1, the shaft 52 is extended outside the intake air supply passage 30, and has a lever 5 at its tip.
4 is fixed. A wire 55 is connected to the lever 54, and when the wire 55 is pulled in the direction of the arrow, the lever 54, the shaft 52, and the intake throttle valve 51 move in conjunction with the lever 54.
rotates. A ninth spring 53 is attached to the lever 54 that returns the suctionless valve 51 to the fully open position when the wire 55 is not pulled.
信号の処理、判断を行なうための計算回路６６の出力に
よってソレノイド６７が働らき、これによってワイヤ５
５の吸引が行なわれる。The solenoid 67 is actuated by the output of the calculation circuit 66 for signal processing and judgment, which causes the wire 5 to
5 suctions are performed.
６１は電源、６２はキイスイッチ、６３はスタータリレ
ー、６４はスタータである。計算回路６６０入力に、キ
ースイッチのスタート信号Ｓ１が供給される。61 is a power supply, 62 is a key switch, 63 is a starter relay, and 64 is a starter. A key switch start signal S1 is supplied to the calculation circuit 660 input.
籐１図装置の動作が以下に説明される。キースイッチ６
２をスタートにするとスタータリレー６３が働ら龜スタ
ータ６４が回るが同時にスタート信号８ｍが計算回路６
６に供給され、ソレノイド６７が作動する。このとき、
ソレノイド６７はレバー５４０ワイヤ５５の吸引を開放
する方向に働らくのでレバー５４はバネ５３によって回
転させられ、これに連動して、シャフト５２、吸気絞り
弁５１が回転し、１気絞）を全開にする。すなわち、ス
タータ作動時に吸気絞〉を全一とすることができゐ。The operation of the rattan device is described below. key switch 6
When 2 is set to start, the starter relay 63 is activated and the head starter 64 is rotated, but at the same time, the start signal 8m is sent to the calculation circuit 6.
6 and the solenoid 67 is activated. At this time,
Since the solenoid 67 works in the direction of releasing the suction of the lever 540 wire 55, the lever 54 is rotated by the spring 53, and in conjunction with this, the shaft 52 and the intake throttle valve 51 rotate, and the 1st throttle is fully opened. Make it. In other words, when the starter is operating, the intake throttle can be made all the way.
本発明の実施にあたっては、種々の変形形態をとること
ができる。例えば前述の実施例においてはスタータ信号
を検出し、スタータ作動時Ｋａ気絞勤を全開としている
が、必ずしもそれに限ることなく、入力信号としてはス
タータ信号以外にエンジン回転数信号、レギ島レータ−
の電圧、又はこれらを組み合わせて用いることができる
。その場合には、始動時の吸気絞シ開度をよシ精密に制
御でき、始動性を改良することがで亀る。また前述の実
施例においては吸気絞シ弁の開度を変える手段としてソ
レノイドを用いたが、必ずしもそれに限ること愈＜、モ
ータ勢の駆動数置を用いることができる。In implementing the present invention, various modifications may be made. For example, in the above-mentioned embodiment, the starter signal is detected and the engine throttle is fully opened when the starter is activated.
voltage, or a combination of these can be used. In that case, the opening degree of the intake throttle at the time of starting can be controlled more precisely, and starting performance can be improved. Further, in the above-described embodiment, a solenoid is used as a means for changing the opening degree of the intake throttle valve, but the present invention is not necessarily limited to this, and a driving position of a motor may be used.
本発明によれば、吸気絞如装置を有するディー七ルエン
ジンにおいて、アイドリンク時又は低負荷時における振
動、騒音紘低レベルを維持しつつ、始動性の悪化を防止
すゐことができる。According to the present invention, in a diesel engine having an intake throttle device, deterioration in startability can be prevented while maintaining a low level of vibration and noise during idling or low load.
第１図は本発明の一実施例としてのディーゼルエンジン
の吸入空気量制御方法を行う装置を示す図、
第２ｗは第１図ＭｉｌＫおける吸気絞シ装置の構成を示
す図である。
１・・・エンジン本体、 ２・・・インテークマニホル
ド、３・・・吸入空気供給通路、 ４・・・エアクリー
ナ、５・・・吸気絞夛装置、 ５１・・・吸気絞り
弁、５２・・・シャフト、 ５３・・・バネ、
５４・・・レバー、 ５５・・・ワイヤ、６
１・・・電源、 ６２・・・キイスイッチ
、６３−・・スタータリレー、 ６４・・・スタータ
、６６−・・計算回路、 ６７・・・ソレノイ
ド。
特許出願人
株式金社日本自動車部品総合研究所
特許出願代理人
弁理士青水 朗
弁通士西舘和之
弁理士 松 下 操
弁理士山口紹之
第２図
５
／FIG. 1 is a diagram showing a device for performing an intake air amount control method for a diesel engine as an embodiment of the present invention, and FIG. 2w is a diagram showing the configuration of the intake throttle device in the MilK shown in FIG. DESCRIPTION OF SYMBOLS 1... Engine body, 2... Intake manifold, 3... Intake air supply passage, 4... Air cleaner, 5... Intake throttle device, 51... Intake throttle valve, 52... shaft, 53... spring,
54...Lever, 55...Wire, 6
1... Power supply, 62... Key switch, 63-... Starter relay, 64... Starter, 66-... Calculation circuit, 67... Solenoid. Patent applicant Kinsha Co., Ltd. Japan Automotive Parts Research Institute Patent agent Patent attorney Aomizu Roben Consultant Kazuyuki Nishidate Patent attorney Matsushita Souichi Patent attorney Naoyuki Yamaguchi Figure 2 5 /
Claims (1)
エンジン条件に応じて供給通路断面積を変化せしめて吸
入空気量の制御を行なうための吸気絞シ装置を有するデ
ィーゼルエンジンを用い、始動時検出手段によシ検出さ
れた始動時に前記吸気絞シ装置を全開とするディーゼル
エンジンの吸チのスタート信号、エンジン回転数信号、
およびレギ為レターの電圧のうち少くとも１つの検出手
段を用いる、特許請求の範囲第１項記載のディーゼルエ
ンジンの吸入空気量制御方法。l. Using a diesel engine having an intake throttle device installed in the intake air supply passage of the diesel engine to control the amount of intake air by changing the cross-sectional area of the supply passage according to engine conditions, a diesel engine intake start signal, an engine rotation speed signal, which fully opens the intake throttle device at the time of a detected start;
2. The method for controlling the intake air amount of a diesel engine according to claim 1, which uses at least one detection means of the voltage of the regulator and the regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1812082A JPS58138237A (en) | 1982-02-09 | 1982-02-09 | Suction air quantity control method of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1812082A JPS58138237A (en) | 1982-02-09 | 1982-02-09 | Suction air quantity control method of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58138237A true JPS58138237A (en) | 1983-08-17 |
Family
ID=11962738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1812082A Pending JPS58138237A (en) | 1982-02-09 | 1982-02-09 | Suction air quantity control method of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58138237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035212A (en) * | 1990-04-02 | 1991-07-30 | Caterpillar Inc. | Engine flow restriction control |
-
1982
- 1982-02-09 JP JP1812082A patent/JPS58138237A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035212A (en) * | 1990-04-02 | 1991-07-30 | Caterpillar Inc. | Engine flow restriction control |
| WO1991015668A1 (en) * | 1990-04-02 | 1991-10-17 | Caterpillar Inc. | An engine flow restriction control |
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