JPS635162A - Ignition device for two-cycle multi cylinder internal combustion engine - Google Patents
Ignition device for two-cycle multi cylinder internal combustion engineInfo
- Publication number
- JPS635162A JPS635162A JP14619386A JP14619386A JPS635162A JP S635162 A JPS635162 A JP S635162A JP 14619386 A JP14619386 A JP 14619386A JP 14619386 A JP14619386 A JP 14619386A JP S635162 A JPS635162 A JP S635162A
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- cylinder
- spark
- spark plug
- current
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 238000004804 winding Methods 0.000 claims abstract description 17
- 235000013290 Sagittaria latifolia Nutrition 0.000 abstract 2
- 235000015246 common arrowhead Nutrition 0.000 abstract 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
- F02P7/03—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means
- F02P7/035—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means without mechanical switching means
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は２サイクル多気筒火花点火内燃機関における
点火装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ignition device for a two-stroke multi-cylinder spark-ignition internal combustion engine.
゛〔従来の技術〕
４サイクル火花点火内燃機関では、フラッシュオーバ対
策、浮遊容量低減、空間利用効率増大の観点からディス
トリビュータを廃止した所謂ディストリビュータレス点
火装置が１８されている。[Prior Art] In four-cycle spark ignition internal combustion engines, so-called distributor-less ignition systems have been developed in which a distributor is eliminated from the viewpoint of preventing flashover, reducing stray capacity, and increasing space utilization efficiency.
この点火装置では、例えば６気筒内燃機関では、点火コ
イルが３組設けられ、一つの点火コイルは位相が３６０
°相違する気筒の点火栓電極に接続される。その場合、
一つの気筒の点火時に、その気筒と組になる３６０”位
相の異なる気筒でも火花が形成されるが、この気筒は豚
腸乃至は排気行程であることから、火花が発生しても正
規の作動に影響されることはない。In this ignition system, for example, in a six-cylinder internal combustion engine, three sets of ignition coils are provided, and one ignition coil has a phase of 360.
°Connected to spark plug electrodes of different cylinders. In that case,
When one cylinder ignites, sparks are also formed in the cylinders that are paired with that cylinder and have a 360" phase difference, but since this cylinder is in the pig's intestine or exhaust stroke, even if a spark occurs, it will not operate normally. is not affected by.
上記ディストリビュータレス点火装置を２サイクルの多
気筒機関に応用しようとする場合、組になる二つの気筒
は１８０”位相が異なることになるが、この場合−方が
点火行程のとき他方の気筒は吸気行程となり、シリンダ
内に混合気が既に導入されているので、誤着火の発生の
虞がある。When applying the above distributorless ignition system to a two-stroke multi-cylinder engine, the two cylinders in the set will have a 180" phase difference, but in this case, when one cylinder is in the ignition stroke, the other cylinder is in the intake stroke. stroke, and the air-fuel mixture has already been introduced into the cylinder, so there is a risk of erroneous ignition.
この発明は２サイクル多気筒内燃機関に適したディスト
リビュータレス点火装置を提供することを目的とする。An object of the present invention is to provide a distributorless ignition system suitable for a two-stroke multi-cylinder internal combustion engine.
この発明によれば、二つの気筒の点火栓電極を一つの点
火コイルによって作動させる点火装置において、各点火
コイルの一次側は第１の巻線部分と第２の巻線部分とを
有し、一方二次側は、その二つの気筒の点火栓電極が並
列配置され、第１の＠線部分を駆動したとき一方の点火
栓電極のみに電流が発生し、第２の巻線部分を駆動した
とき他方の点火栓電極を通過する電流が発生せしめるダ
イオード手段を有した２サイクル多気筒内燃機関用点火
装置が提供される。According to this invention, in the ignition device in which the ignition plug electrodes of two cylinders are operated by one ignition coil, the primary side of each ignition coil has a first winding portion and a second winding portion, On the other hand, on the secondary side, the spark plug electrodes of the two cylinders are arranged in parallel, and when the first @ line part is driven, a current is generated in only one spark plug electrode, which drives the second winding part. An ignition system for a two-stroke multi-cylinder internal combustion engine is provided having diode means for generating a current passing through the other spark plug electrode when the spark plug electrode is turned on.
第１図は６気筒の２サイクル内燃機関へのこの発明の実
施例の全体構成を示す。符号１は、１８０”位相の異な
る二つの気筒＃１と＃４（点火順序を＃ｌ、＃６．＃２
．＃４．＃３．＃５と仮定する。）のための点火コイル
のユニットを示す。他の気筒の組合せ、即ち＃６と＃３
、＃２と＃５についても、同様な点火コイルが設置され
るが節明のため図示してない０点火コイル１は鉄心１′
を備える。FIG. 1 shows the overall configuration of an embodiment of the present invention for a six-cylinder two-stroke internal combustion engine. Code 1 indicates two cylinders #1 and #4 with a 180" phase difference (ignition order is #l, #6. #2).
．． #4. #3. Assume #5. ) shows the ignition coil unit for. Other cylinder combinations, i.e. #6 and #3
, #2 and #5, similar ignition coils are installed, but for sake of clarity, they are not shown.0 Ignition coil 1 is connected to iron core 1'.
Equipped with.
−次側巻線３は巻回方向が逆の第１の部分３ａと第２の
部分３ｂとを備え、一方二次側巻″４ｉＡ５は一つ設け
られる。−次巻線の第１の部分３ａは、トランジスタ６
ａのエミッターコレクタ回路を介して電源８に結線され
る。−方、第２の巻線部分３ｂはトランジスタ６ｂのエ
ミッターコレクタ回路を介して電源８に結線されるされ
る。９ａ。- The secondary winding 3 comprises a first part 3a and a second part 3b with opposite winding directions, while one secondary winding "4iA5" is provided.-The first part of the secondary winding 3a is the transistor 6
It is connected to the power supply 8 via the emitter-collector circuit of a. - On the other hand, the second winding portion 3b is connected to the power source 8 via the emitter-collector circuit of the transistor 6b. 9a.
９ｂは逆流防止用″のダイオードである。9b is a diode for backflow prevention.
二次巻線５の一端は＃ｌ気筒の点火栓電極２ａを介して
接地される。他端は＃４気筒の点火検電ｉ２ｂを介して
接地される。二次コイルの端部とアースとの間にダイオ
ード８ａ、８ｂが配置され、かつ二次コイルの端部と点
火栓電極との間にダイオード１０ａ、１０ｂが配置され
る。そのため、図の実線矢印Ａで示すような点火栓電極
２ａを流れる電流経路と、破線矢印Ｂで示すような点火
栓電極２ｂを流れる反対方向の電流経路とを構成するこ
とができる。One end of the secondary winding 5 is grounded via the spark plug electrode 2a of the #l cylinder. The other end is grounded via the ignition voltage detector i2b of #4 cylinder. Diodes 8a, 8b are arranged between the ends of the secondary coil and ground, and diodes 10a, 10b are arranged between the ends of the secondary coil and the spark plug electrode. Therefore, it is possible to configure a current path flowing through the ignition plug electrode 2a as shown by the solid line arrow A in the figure, and a current path flowing in the opposite direction through the ignition plug electrode 2b as shown by the broken line arrow B.
１６は点火信号発生回路を示す０点火信号発生回路１８
は、エンジンの所定のクランク角度において点火信号発
生するように構成され、それ自体は周知であるため詳細
な説明は省略するが、マイクロコンピュータシステムを
採用したものがよく知られている。点火信号発生回路１
６の＃１気筒点火信号出力はトランジスタ６ａのベース
に結線され、＃４４気筒火信号出力はトランジスタ６ｂ
に結線される。他の気筒の組合せについても同様な構成
となっている。16 indicates an ignition signal generation circuit 0 ignition signal generation circuit 18
is configured to generate an ignition signal at a predetermined crank angle of the engine, and is well known in itself, so a detailed explanation will be omitted, but one employing a microcomputer system is well known. Ignition signal generation circuit 1
The #1 cylinder ignition signal output of #6 is connected to the base of the transistor 6a, and the #44 cylinder ignition signal output is connected to the transistor 6b.
is connected to. Other cylinder combinations have similar configurations.
以上述べたこの発明の実施例の作動を説明すると、点火
信号発生回路１６は点火を行うべき圧縮上死点の手前の
所定のタイミング毎に所定期間立ち上がる点火パルス信
号を発生する（第２図）。To explain the operation of the embodiment of the present invention described above, the ignition signal generation circuit 16 generates an ignition pulse signal that rises for a predetermined period every predetermined timing before the compression top dead center at which ignition is to be performed (FIG. 2). .
この点火信号は対応する気筒のトランジスタ６ａ。This ignition signal is sent to the transistor 6a of the corresponding cylinder.
６ｂ等のベースに印加される。例えば＃１気筒の点火時
はトランジスタ６ａにパルス信号が印加され、そのパル
ス信号のｔｌｉｇｈからＬｏｗへの立ち下がりの瞬間の
逆起電力により二次巻線に実線矢印Ａの如き点火電流が
発生し、＃１気筒の点火栓２ａに火花が形成される。ダ
イオードｌＯｂの働きで点火検電Ｊｉ２ｂには電流が流
れず、火花は形成されない。6b etc. is applied to the base. For example, when the #1 cylinder is ignited, a pulse signal is applied to the transistor 6a, and an ignition current as shown by the solid line arrow A is generated in the secondary winding due to the back electromotive force at the moment when the pulse signal falls from high to low. , a spark is formed at the spark plug 2a of the #1 cylinder. Due to the action of the diode lOb, no current flows through the ignition voltage detector Ji2b, and no spark is formed.
一方＃４気筒の駆動時はトランジスタ６ｂに点火パルス
が印加され、第２巻線部分３ｂに電流が発生し、この場
合の高圧電流の方向は、第２巻線部分が、第１巻線部分
の反対方向であるから破線矢印Ｂの通りであり、＃４気
筒の電極２ｂに火花が形成される。＃１気筒の電極２ａ
には、ダイオード１０ａの働きで電流が流れない。On the other hand, when the #4 cylinder is driven, an ignition pulse is applied to the transistor 6b, and a current is generated in the second winding portion 3b. Since it is in the opposite direction, it is as indicated by the broken line arrow B, and a spark is formed at the electrode 2b of the #4 cylinder. #1 cylinder electrode 2a
No current flows through the diode 10a.
この発明によれば、２つの気筒毎に点火コイルを設け、
かつその気筒の点火栓電極が直列接続され、更に逆方向
の電流を阻止するダイオードを設置することで、他の気
筒の誤作動の虞のない２サイクル機関に適したディスト
リビュータレス点火装置を構成することができる。According to this invention, an ignition coil is provided for each two cylinders,
In addition, the spark plug electrodes of the cylinders are connected in series, and a diode is installed to block current in the opposite direction, thereby creating a distributor-less ignition system suitable for a two-stroke engine without the risk of malfunction of other cylinders. be able to.
第１図はこの発明の点火装置の構成図。 第２図は点火信号のタイミングを説明する図。 １・・・点火コイル ２ａ、 ２ｂ・・・点火栓電極 ３ａ、３ｂ・・・−次コイル ５・・・二次コイル ６ａ、６ｂ・・・トランジスタ １６・・・点火信号発生回路 FIG. 1 is a block diagram of the ignition device of the present invention. FIG. 2 is a diagram explaining the timing of the ignition signal. 1...Ignition coil 2a, 2b... Spark plug electrode 3a, 3b...-Next coil 5...Secondary coil 6a, 6b...transistor 16...Ignition signal generation circuit
Claims (1)
動させる点火装置において、各点火コイルの一次側は第
１の巻線部分と第２の巻線部分とを有し、一方二次側は
、その二つの気筒の点火栓電極が並列配置され、第１の
巻線部分を駆動したとき一方の点火栓電極のみに電流が
発生し、第２の巻線部分を駆動したとき他方の点火栓電
極を通過する電流が発生せしめるダイオード手段を有し
た２サイクル多気筒内燃機関用点火装置。In an ignition system in which spark plug electrodes of two cylinders are actuated by one ignition coil, the primary side of each ignition coil has a first winding portion and a second winding portion, while the secondary side: The spark plug electrodes of the two cylinders are arranged in parallel, and when the first winding part is driven, a current is generated in only one spark plug electrode, and when the second winding part is driven, the other spark plug electrode An ignition system for a two-stroke multi-cylinder internal combustion engine having diode means for generating a current passing through the ignition system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14619386A JPS635162A (en) | 1986-06-24 | 1986-06-24 | Ignition device for two-cycle multi cylinder internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14619386A JPS635162A (en) | 1986-06-24 | 1986-06-24 | Ignition device for two-cycle multi cylinder internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS635162A true JPS635162A (en) | 1988-01-11 |
Family
ID=15402235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14619386A Pending JPS635162A (en) | 1986-06-24 | 1986-06-24 | Ignition device for two-cycle multi cylinder internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS635162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368878A (en) * | 2015-07-24 | 2017-02-01 | 福特环球技术公司 | System and method for operating an ignition system |
-
1986
- 1986-06-24 JP JP14619386A patent/JPS635162A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368878A (en) * | 2015-07-24 | 2017-02-01 | 福特环球技术公司 | System and method for operating an ignition system |
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