JPS5888464A - Ignition unit in engine - Google Patents
Ignition unit in engineInfo
- Publication number
- JPS5888464A JPS5888464A JP56185331A JP18533181A JPS5888464A JP S5888464 A JPS5888464 A JP S5888464A JP 56185331 A JP56185331 A JP 56185331A JP 18533181 A JP18533181 A JP 18533181A JP S5888464 A JPS5888464 A JP S5888464A
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- detector
- engine
- discharge
- high voltage
- 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
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はエンジンの燃焼室内にノッキングやプリイグ
ニッションなどの異層燃焼が生じるとき、その発生初期
にこれを検出して点火時期を遅角させ、ノッキングを防
止する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that detects when heterogeneous combustion such as knocking or pre-ignition occurs in the combustion chamber of an engine at the early stage of occurrence and retards the ignition timing to prevent knocking. .
近年、エンジンは燃料消費の低減を図るべく、ターボ過
給機を備えたり、圧縮比を鳥く設定することが行われて
い名が、この種エンジンは燃焼温度が＾く異常燃焼を生
じ易いので、その発生゛を防止すべく、発生初期に素速
やく検出して点火時期を遅角させる技術が提案されてい
る。例えばノッキングを検出するため、シリンダミＡ面
に撮動計を付設して、シリンダ内の異常燃焼によるノッ
キング振動を検出することが行われているが、シリンダ
の剛性が高いと検出が遅れることがらりｉ九、逆にエン
ジンの雑損励によって誤作動を生じることがある。In recent years, in order to reduce fuel consumption, engines have been equipped with turbo superchargers and compression ratios have been set dramatically, but this type of engine has a high combustion temperature and is prone to abnormal combustion. In order to prevent this from occurring, a technique has been proposed that quickly detects the initial occurrence and retards the ignition timing. For example, in order to detect knocking, a motion sensor is attached to the A side of the cylinder to detect knocking vibrations caused by abnormal combustion within the cylinder, but if the cylinder is highly rigid, detection may be delayed. 9. On the other hand, malfunction may occur due to miscellaneous damage to the engine.
この発明はこのような不具合を除去することを目的とす
るものである。以下、これを図示の実施ガによって説明
する。１はエンジンの燃焼室でシリンダ２．シリンダヘ
ッド３およびピストン４によって構成されている。５は
吸気弁、６は点火栓である。Ｉはイオン検出器で一対の
一極７ａ、７ｂが燃焼室１内に対向して設けられ、一方
のｔ４７ａは電線８によＧ１１ｔ圧が１ｔＪＯ〜５００
■の高電圧直流電源９に接続され他方の電極７ｂはシリ
ンダヘッド３を介して同じく高電圧直流域陣９に接続さ
れて、それによって放電回路１０が形成されている。The present invention aims to eliminate such problems. This will be explained below with reference to the illustrated embodiment. 1 is the combustion chamber of the engine and cylinder 2. It is composed of a cylinder head 3 and a piston 4. 5 is an intake valve, and 6 is a spark plug. I is an ion detector, and a pair of poles 7a and 7b are provided facing each other in the combustion chamber 1, and one t47a is connected to the electric wire 8 so that the G11t pressure is 1tJO~500.
The other electrode 7b is connected to the high voltage DC power supply 9 via the cylinder head 3, thereby forming a discharge circuit 10.
１１は放電回路１０内に挿入され九イオン電流の検出器
で放電回路１０内に所定の量の放電ＩＩＥ流が生じ九と
き出力信号を発生するふうになっている。Reference numeral 11 denotes an ion current detector inserted into the discharge circuit 10, and is designed to generate an output signal when a predetermined amount of discharge IIE current is generated in the discharge circuit 10.
２０は従来公知の点火回路で点火コイル２１の一次側は
エンジンスイッチ２２．電源２３．トランジスタ式の断
続器２４からなっており、二次儒は配電器２５を通して
前記点火栓６に接続され工いる。２４Ｃはトランジスタ
式断続器の３レクタ、２４ｂｔｉベース、２４ｅはエミ
ッタであり、ベース２４ｂは波形成形器２６を介して磁
石２１ａ、調時ロータ２７ｂ、およびピックアップコイ
ル２７ＧからなるトリｓＷ電機２７に接続されている。20 is a conventionally known ignition circuit, and the primary side of the ignition coil 21 is an engine switch 22. Power supply 23. It consists of a transistor-type interrupter 24, and the secondary voltage is connected to the spark plug 6 through a power distributor 25. 24C is the 3-rector of a transistor type interrupter, 24bti is the base, 24e is the emitter, and the base 24b is connected via the waveform shaper 26 to the tri-sW electric machine 27 consisting of the magnet 21a, the timing rotor 27b, and the pickup coil 27G. ing.
３Ｇは前記検出器１１の出力側を波形成形器２６に接続
する制御回路でめる。3G is established by a control circuit that connects the output side of the detector 11 to the waveform shaper 26.
１ｓ２図は他の実施例を示すものであり、第ｌ実施例に
おけるイオン検出器Ｔに代え、点火倫６にイオン検出器
１０機能を併せて負担させるものである。ζ＼で第１図
と同一の構成部分にりいては同符号を付して説明を省略
する。この実施例では高電圧直流電源９の一極がダイオ
ード４０を介して点火栓６に連らなる高圧回路に接続さ
れ、他極は検出器１１を経て接地されている。ダイオー
ド４０は点火回路２００点火用高電圧が＾正直Ｉ５１！
電源９に作用するのを防ぐ−のであり、点火回路に挿入
されたダイオード４１は逆に放電回路１０に印加される
電圧が点火コイ」２１に作用するのを防止するものでめ
る。1s2 shows another embodiment, in which the ion detector 10 function is also provided to the ignition tube 6 instead of the ion detector T in the first embodiment. In ζ\, the same components as in FIG. 1 are denoted by the same reference numerals and their explanations are omitted. In this embodiment, one pole of the high voltage DC power supply 9 is connected to a high voltage circuit connected to the spark plug 6 via a diode 40, and the other pole is grounded via a detector 11. The diode 40 is the ignition circuit 200, and the high voltage for ignition is honestly I51!
The diode 41 inserted in the ignition circuit prevents the voltage applied to the discharge circuit 10 from acting on the ignition coil 21.
次に実施例の作動を説明する。エンジンスイッチ２２が
投入され、エンジンが運転されると、トランジスタ２４
が導通して点火コイルの一次側に電流が流れる。一方、
ピストン４がＦ降し吸気弁５が開く吸気行程中、燃焼室
１内に温合気が吸入される。ピストン４が上昇に転じ上
死点前ｌＯ〜４０°の圧縮行程終期に至ると調時ロータ
２７ｂ’の突片がピックアップコイル２７ｃのコアに接
近して磁気回路を閉じ、これによってトリガー信号を発
する。この信号は波形成形器２６内で整形され、トラン
ジスタ２４のベース２４ｂに作用し工これをＳＷＳする
。これにより点火コイル２１に生じた高電圧が配電！２
５を通して所定シリンダの点火４＆Ｓに印加され、その
電極間に電弧を生じ、爆発行程が始まる。以上の作動は
従来公知のものと異るところはない。Next, the operation of the embodiment will be explained. When the engine switch 22 is turned on and the engine is operated, the transistor 24
becomes conductive and current flows to the primary side of the ignition coil. on the other hand,
During the intake stroke in which the piston 4 is lowered to F and the intake valve 5 is opened, warm air is drawn into the combustion chamber 1. When the piston 4 begins to rise and reaches the end of the compression stroke at 10 to 40 degrees before top dead center, the protruding piece of the timing rotor 27b' approaches the core of the pickup coil 27c, closing the magnetic circuit, thereby emitting a trigger signal. . This signal is shaped in the waveform shaper 26 and acts on the base 24b of the transistor 24 to SWS it. As a result, the high voltage generated in the ignition coil 21 is distributed! 2
5 to the ignition 4&S of a given cylinder, creating an electric arc between its electrodes and starting the detonation stroke. The above operation is no different from conventionally known operations.
爆発行程において、点火栓６の電極など小突部が熱点と
なって点火以前に混合気が自然発火する現象、いわゆる
プリイグニッションによる火炎の先端、あるいは点火後
にノッキングなどの異常燃焼を生じて燃焼室末端の混合
気、いわゆるエンドガスにより発生した火炎の先端がイ
オン検出器１に達すると、その中に存する電離した燃料
分子の丸め放電回路−８に高−正直流１１＃９から放電
電流が流れる。第４図はノッキングの場合の数域特性を
示すもので、Ｋ８は正常な点火によるイオン電流に、は
エンドガスによるイオン′を寞であり、２ｆｉｌ流れる
ことが認められる。この放電−流は検出器１１によｐ検
出されて、波形成形器２６に作用する。During the explosion process, a small protrusion such as the electrode of the spark plug 6 becomes a hot spot, causing the air-fuel mixture to ignite spontaneously before ignition, the tip of the flame due to so-called pre-ignition, or abnormal combustion such as knocking occurs after ignition, resulting in combustion. When the tip of the flame generated by the mixture at the end of the chamber, so-called end gas, reaches the ion detector 1, a discharge current flows from the high direct current 11#9 to the rounded discharge circuit 8 of the ionized fuel molecules present therein. . FIG. 4 shows the number range characteristics in the case of knocking, and it can be seen that K8 is equivalent to the ion current due to normal ignition, and the ion current due to the end gas flows 2fil. This discharge current is detected by the detector 11 and acts on the waveform shaper 26.
波形成形器２６は点火時期以外の時期に放電′ｌ１ｌＩ
ＬＩｔの検出信号が印加されたとき、その信号により第
３図で示すようにベース２４ｂのトリガー鴫圧ＶＴを低
く設定す♂もので、トリガー発域機２Ｔからベース２４
ｂに印加される信号が迩ｗＴ４圧に迄低下する時期がΔ
θだけ遅れ、点火時期が遅−角する。The waveform shaper 26 discharges at times other than the ignition timing.
When the LIt detection signal is applied, the signal sets the trigger pressure VT of the base 24b low as shown in FIG.
The time when the signal applied to b drops to 5T4 pressure is Δ
The ignition timing is delayed by θ, and the ignition timing is retarded.
すなわち、プリイグニッションを生じた場合ハ直ちに、
ｔｆｃ、ノッキングが生じたときは次の爆発行程から点
火時期が遅角され、検出器１１が所定の放電を検出しな
くなる迄遅角状態が維持される。In other words, if pre-ignition occurs, immediately
tfc, when knocking occurs, the ignition timing is retarded from the next explosion stroke, and the retarded state is maintained until the detector 11 no longer detects a predetermined discharge.
この発明は以上のように点火時期を正規の進角状圃と、
それより若干遅角した遅角状態との少なくと４二状態に
変更可能な進角制御手段と、燃焼室内に設けたイオン検
出器にＡ′＠圧を印加する放電回路とを設け、この放電
回路にその放電電流を・検出する検出器を設けて、その
検出器の出力側を＃紀進角制御手段に接続し、前記検出
器が所定量の放電電流を検出したとき進角制御手段を遅
角させるようにしたエンジンの点火装置である。から、
遠心式進角装置、負圧式進角装置等によって予め設定さ
れ九点火時期以外の時期において燃焼車内で燃焼が行わ
れたとき、それを検出して点火進角を遅角させるので点
火時期の設定誤差や経時変化があっても、プリイグニッ
ションやノッキングを生じることがない。よって、点火
時期の許容誤差を大きくとれるので製作や保守が容易で
あり、エンジンを傷めたり燃料の消費が増したりする不
具合がないなどの効果がある。As described above, this invention adjusts the ignition timing to the regular advanced angle field,
An advance angle control means that can change the advance angle to at least 42 states, including a retard state that is slightly retarded, and a discharge circuit that applies A'@ pressure to an ion detector installed in the combustion chamber are provided. The circuit is provided with a detector for detecting the discharge current, and the output side of the detector is connected to the advance angle control means, and when the detector detects a predetermined amount of discharge current, the advance angle control means is activated. This is an engine ignition system that retards the ignition. from,
When combustion occurs in a combustion vehicle at a timing other than the nine ignition timings set in advance by a centrifugal advance device, negative pressure advance device, etc., this is detected and the ignition advance is retarded, so the ignition timing is set. Even if there are errors or changes over time, there will be no pre-ignition or knocking. Therefore, the ignition timing can have a large tolerance, making manufacture and maintenance easy, and there are no problems such as damage to the engine or increased fuel consumption.
ｉｓ１図はこの発明の一実施例であるエンジンの点火系
を示す構成図、第２図はその変形例を示す構成図、第３
図は遅角の原理を示す説明図、第４図はノッキング時の
イオン発生状況を示す説明図である。
６・・・・点火栓、Ｉ・・・・イオン検出器、８・・・
・高電圧直ｌ５ｔｌｌｌｃ源、１０・・・・放電回路、
１１・・・・検出器。is1 is a configuration diagram showing the ignition system of an engine that is an embodiment of the present invention, FIG. 2 is a configuration diagram showing a modification thereof, and FIG.
The figure is an explanatory diagram showing the principle of retardation, and FIG. 4 is an explanatory diagram showing the state of ion generation during knocking. 6... Spark plug, I... Ion detector, 8...
・High voltage direct l5tlllc source, 10...discharge circuit,
11...Detector.
Claims (1)
遅角し九遅角状態との少くとも二状態に変更可能な進角
制御手段と、燃焼室内に設けたイオン検出器に高電圧を
印加する放鴫回錯とを設け、この放電回路にその放電′
−流を検出する検出器を設けて、その検出器の出力側を
前記進角制御手段に接続し、前記検出器が所定量の放ｗ
Ｌ４１１［を検出し九とき進角制御手段を遅角させるよ
うにし九二／ジンの点火装置。An advance angle control means that can change the ignition timing to at least two states: a preset advance state and a slightly retarded state, and a high voltage applied to an ion detector provided in the combustion chamber. A discharge circuit is provided to apply the discharge ′ to this discharge circuit.
- a detector for detecting the current is provided, the output side of the detector is connected to the advance angle control means, and the detector is configured to emit a predetermined amount of w;
92/Jin's ignition system detects L411 and retards the advance angle control means at 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56185331A JPS5888464A (en) | 1981-11-20 | 1981-11-20 | Ignition unit in engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56185331A JPS5888464A (en) | 1981-11-20 | 1981-11-20 | Ignition unit in engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5888464A true JPS5888464A (en) | 1983-05-26 |
Family
ID=16168944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56185331A Pending JPS5888464A (en) | 1981-11-20 | 1981-11-20 | Ignition unit in engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888464A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6153460A (en) * | 1984-07-02 | 1986-03-17 | アトラス、フア−ルツオイクテヒニク、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング | Method and device for generating trigger pulse igniting internal combustion engine |
-
1981
- 1981-11-20 JP JP56185331A patent/JPS5888464A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6153460A (en) * | 1984-07-02 | 1986-03-17 | アトラス、フア−ルツオイクテヒニク、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング | Method and device for generating trigger pulse igniting internal combustion engine |
| JPH042794B2 (en) * | 1984-07-02 | 1992-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4846129A (en) | Ignition system improvements for internal combustion engines | |
| US8555867B2 (en) | Energy efficient plasma generation | |
| US6539930B2 (en) | Ignition apparatus for internal combustion engine | |
| JP3715082B2 (en) | Knock control device for internal combustion engine | |
| US20230184160A1 (en) | Ignition system | |
| US4130097A (en) | Ignition systems for internal combustion engines | |
| JPH1172074A (en) | Ignition device of internal combustion engine | |
| US4653459A (en) | Method and apparatus for igniting a combustible mixture, especially gasoline-air in the combustion chamber of an internal combustion engine | |
| KR20000053088A (en) | Igniting system with a device for measuring the ion current | |
| JP2948023B2 (en) | Induction discharge ignition system for internal combustion engine | |
| US4406273A (en) | Ignition system for internal combustion engine | |
| JPS6368774A (en) | Spark plug preignition detector for internal combustion engine | |
| JPS5888464A (en) | Ignition unit in engine | |
| JP2010025039A (en) | Combustion abnormal state discriminating device | |
| JPH0765558B2 (en) | Abnormal combustion detection device and combustion control device for internal combustion engine | |
| JP2015200258A (en) | Ignitor | |
| JP2007154829A (en) | Multiple point ignition device provided with ion current detection device | |
| JP4006781B2 (en) | Internal combustion engine knock detection method and apparatus | |
| JPH07198545A (en) | Method for determining load in combustion cylinder of spark-charge igniting internal combustion engine | |
| JP7497489B2 (en) | Control device for internal combustion engine | |
| JPWO2020085042A1 (en) | Control device for internal combustion engine | |
| US4130096A (en) | Ignition systems for internal combustion engines | |
| JPWO2019064932A1 (en) | Internal combustion engine control device and internal combustion engine control method | |
| JPS6410660B2 (en) | ||
| JP2002206472A (en) | Ignition device for speak ignition engine |