JPS6079171A - Distributorless type igniter - Google Patents
Distributorless type igniterInfo
- Publication number
- JPS6079171A JPS6079171A JP18763983A JP18763983A JPS6079171A JP S6079171 A JPS6079171 A JP S6079171A JP 18763983 A JP18763983 A JP 18763983A JP 18763983 A JP18763983 A JP 18763983A JP S6079171 A JPS6079171 A JP S6079171A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- coil
- ignition
- ignition coil
- rectifying
- 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.)
- Granted
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
- 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
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】
〔発明の属する技術分野〕
本発明は収出力イグニションコイルと高圧シリコン整流
素子とが組み合わせて使用されるディストリビュータレ
ス型自動車エンジン用点火装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a distributor-less ignition system for an automobile engine in which a power output ignition coil and a high-voltage silicon rectifier are used in combination.
第１図はそのような４気筒自動車エンジン用のディスト
リビュータレス型点火装置を示し、イグニションコイル
１の一次側には二つのＮＰＮ ）ランジスタ２１．２２
が逆電圧防止用整流素子３１゜３２を介して互に逆方向
に接続されている。イグニションコイル１の二次側の両
端にはそれぞれの気筒に対する点火プラグ４１〜４４の
一端が互に逆方向の高圧整流素子５を介して接続され、
点火プラグの他端はすべて接地されている。点火プラグ
４１を備えた気筒の圧縮行程の最後にトランジスタ２１
０ペースに制御パルスが供給されると、整流素子３１に
順方向の電流がイグニションコイル１の一次側流れ、そ
の−次電流のしゃ断時に二次側に高電圧が発生し、電流
ｉ１が流れて点火プラグ４１に放電が生じ、気筒内に爆
発が起きる。この際点火プラグ４３にも放電が生ずるが
、この気筒は排気行程にあるので爆発は生じない。つづ
いてトランジスタ２２の制御によシイグニションコイル
１の二次側に流れる電流１２によって点火プラグ４２に
放電を生じさせ、次の気筒に爆発を起こす。同様にして
四つの気筒に順次爆発を発生させる。しかしこの場合の
イグニションコイルの二次側の出力電圧は４０ｋＶ以上
となるが、現在製造されている高圧シリコン整流素子の
耐圧は２５ｋＹ程度であるため、高圧整流素子５に対し
ては２本の高圧シリコン整流素子を直列に接続さぜるを
得ない。このように直列接続した場合、発生電圧が著し
く高電圧であること、火花放電現象に伴なう過渡的な周
波数特性が高いことなどＫよシ、使用される２本の高圧
シリコン整流素子の電圧分担の均等化が難しく、この結
果整流素子の破壊に至ることがある。FIG. 1 shows such a distributorless type ignition system for a four-cylinder automobile engine, in which two NPN transistors 21 and 22 are installed on the primary side of the ignition coil 1.
are connected in opposite directions to each other via reverse voltage prevention rectifying elements 31 and 32. One end of spark plugs 41 to 44 for each cylinder is connected to both ends of the secondary side of the ignition coil 1 via high voltage rectifying elements 5 in mutually opposite directions.
All other ends of the spark plugs are grounded. Transistor 21 at the end of the compression stroke of the cylinder with spark plug 41
When a control pulse is supplied to the 0 pace, a forward current flows through the rectifying element 31 to the primary side of the ignition coil 1, and when the secondary current is cut off, a high voltage is generated on the secondary side, and a current i1 flows. Discharge occurs in the spark plug 41 and an explosion occurs within the cylinder. At this time, discharge also occurs in the spark plug 43, but since this cylinder is in the exhaust stroke, no explosion occurs. Next, under the control of the transistor 22, the current 12 flowing to the secondary side of the ignition coil 1 causes the spark plug 42 to discharge, causing an explosion in the next cylinder. In the same way, explosions are generated sequentially in the four cylinders. However, in this case, the output voltage on the secondary side of the ignition coil will be 40 kV or more, but the withstand voltage of currently manufactured high voltage silicon rectifiers is about 25 kY, so two high voltage It is unavoidable to connect silicon rectifier elements in series. When connected in series in this way, the voltage generated by the two high-voltage silicon rectifiers used is extremely high, and the transient frequency characteristics associated with the spark discharge phenomenon are high. It is difficult to equalize the assignment, which may result in destruction of the rectifying element.
本発明はこのようなディストリビュータレス型点火装置
のイグニションコイルの二次側に接続される２本の高圧
整流素子の電圧分担をできるだけ簡単に均等化すること
を目的とする。An object of the present invention is to equalize as easily as possible the voltage sharing between the two high-voltage rectifying elements connected to the secondary side of the ignition coil of such a distributorless type ignition device.
本発明は次の実験によって得られた認識に基づく。第２
図に示す等何回路において、点火プラグ４に直列に接続
された２本の整流素子５１．５２の内接地側の素子５２
に加わる電圧ｖｂのプラグ４と大地間の電圧Ｖａに対す
る比と整流素子５２の漂遊容量Ｃｓ との寿与各関係は
第３図のようになり、Ｃｓが大きくなるにつれて電圧分
担が著しく不均等となって漂遊容量の影響が大きい事が
理解できる。本発明はこの電圧分担を均等化するために
イグニションコイル側に接続された整流素子をイグニシ
ョンコイルにその両極を結ぶ方向を平行にして所定の間
隔を置いて配置することによりその整流素子とイグニシ
ョンコイル間に静電容量を形成して上記の目的を達成す
る。The present invention is based on the findings obtained through the following experiments. Second
In the circuit shown in the figure, the element 52 on the inner ground side of the two rectifier elements 51 and 52 connected in series to the spark plug 4
The relationship between the lifetime of the voltage Vb applied to the voltage Va between the plug 4 and the ground and the stray capacitance Cs of the rectifying element 52 is as shown in Figure 3, and as Cs increases, the voltage distribution becomes significantly uneven. It can be understood that the influence of stray capacitance is large. In order to equalize this voltage sharing, the present invention arranges a rectifying element connected to the ignition coil side at a predetermined interval with the direction in which the two poles are connected parallel to the ignition coil. The above objective is achieved by forming a capacitance between them.
第４図は本発明の実施例を示し、イグニションコイル１
１に接続される高圧整流素子６１と高圧整流素子６２の
うち、イグニションコイル１１に近い側の整流素子６１
はコイルに平行に配置されておシ、他の素子６２はコイ
ルから遠ざかるように配置されている。この結果整流素
子６１およびリード線８とコイル１１０間に静電容量７
１および７２が生ずる。この静電容量７１および７２が
第５図に示す等何回路の静電容量７に対応し、これによ
少漂遊容量Ｃ８の影響が緩和され、整流素子５１．５２
に対する電圧分担が改善され、高圧整流素子の破壊が防
止される。他の点火プラグ４２．４３．４４に接続され
る高圧整流素子についても同様に配置することはもちろ
んである。FIG. 4 shows an embodiment of the present invention, in which the ignition coil 1
Among the high voltage rectifier 61 and high voltage rectifier 62 connected to 1, the rectifier 61 on the side closer to the ignition coil 11
is arranged parallel to the coil, and the other elements 62 are arranged away from the coil. As a result, there is a capacitance of 7 between the rectifying element 61 and the lead wire 8 and the coil 110.
1 and 72 result. These capacitances 71 and 72 correspond to the capacitance 7 of the circuit shown in FIG.
This improves the voltage distribution to the high-voltage rectifier and prevents damage to the high-voltage rectifier. Of course, the high voltage rectifying elements connected to the other spark plugs 42, 43, 44 can also be arranged in the same manner.
挿入される静電容量７の大きさは、各整流素子を取シ付
ける構造によって異なるが通常数＋ｐＦ以下の値を形成
すればよく、イグニションコイルの効率を著しく低下さ
せるものではカい。The size of the capacitance 7 to be inserted varies depending on the structure in which each rectifying element is mounted, but it should normally be a value of several + pF or less, and does not significantly reduce the efficiency of the ignition coil.
本発明によればイグニションコイルの高圧出力側に接続
される二つの高圧整流素子のうち、コイル側の素子を並
列接続の静電容量が生ずるように配置することによ）、
点火プラグ側の素子の漂遊容量の影響が緩和されて高圧
出力発生時の整流素子への電圧分担が均等化され、ディ
ス） ＩＪピユータレス屋点火装置全体の信頼度が向上
し、また使用高圧整流素子の過剰特性が不要になるため
点火装置の経済的な設計が可能になる。According to the present invention, among the two high-voltage rectifying elements connected to the high-voltage output side of the ignition coil, the element on the coil side is arranged so that a parallel-connected capacitance is generated),
The influence of stray capacitance of the element on the spark plug side is alleviated, and the voltage distribution to the rectifying elements when high voltage output is generated is equalized, improving the reliability of the entire IJ computer-less ignition system, and reducing the high voltage rectifying element used. This eliminates the need for excessive characteristics of the ignition system, allowing for an economical design of the ignition system.
５−
第１図はディストリビュータレス型点火装置の構成を示
す回路図、第２図は第１図の点火装置の高圧整流部への
電圧分担の説明図、第３図はその電圧分担比と漂遊容量
との関係線図、第４図は本発明の一実施例の配置図、第
５図は本発明の一実施例の等価回路図である。
１．１１・・・イグニションコイル、４１．４２゜４３
．４４・・・点火プラグ、５１，５２，６１゜ ６−
バク
Ｔ２ 図
ｒ ４ 圀
才 ５ 胆
′Ｔ Ｊ 面5- Figure 1 is a circuit diagram showing the configuration of a distributor-less ignition system, Figure 2 is an explanatory diagram of voltage distribution to the high voltage rectifier of the ignition system in Figure 1, and Figure 3 is a diagram showing the voltage distribution ratio and drift. FIG. 4 is a diagram showing the relationship with capacitance, FIG. 4 is a layout diagram of an embodiment of the present invention, and FIG. 5 is an equivalent circuit diagram of an embodiment of the present invention. 1.11...Ignition coil, 41.42°43
．． 44...Spark plug, 51, 52, 61° 6- Baku T2 Fig. R 4 Kizai 5 Bul'T J side
Claims (1)
接続された二つの高圧整流素子を順方向を逆にして挿入
した二つの点火プラグの一側が接続され、各点火プラグ
の他側は接地されるものにおいて、イグニションコイル
に近い側の高圧整流素子がイグニションコイルにその両
極を結ぶ方向を平行にして所定の間隔を置いて配置され
たことを特徴とするディストリビュータレス型点火装置
。1) Two high-voltage rectifiers connected in series are inserted into both ends of the secondary side of the ignition coil with their forward directions reversed. One side of each spark plug is connected, and the other side of each spark plug is grounded. 1. A distributor-less type ignition device, characterized in that a high-voltage rectifying element on the side closer to the ignition coil is arranged at a predetermined interval with the direction in which the two poles thereof are connected parallel to the ignition coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18763983A JPS6079171A (en) | 1983-10-06 | 1983-10-06 | Distributorless type igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18763983A JPS6079171A (en) | 1983-10-06 | 1983-10-06 | Distributorless type igniter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6079171A true JPS6079171A (en) | 1985-05-04 |
| JPH0432229B2 JPH0432229B2 (en) | 1992-05-28 |
Family
ID=16209630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18763983A Granted JPS6079171A (en) | 1983-10-06 | 1983-10-06 | Distributorless type igniter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079171A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57188773A (en) * | 1981-05-18 | 1982-11-19 | Hitachi Ltd | Ignition device of internal combustion engine |
-
1983
- 1983-10-06 JP JP18763983A patent/JPS6079171A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57188773A (en) * | 1981-05-18 | 1982-11-19 | Hitachi Ltd | Ignition device of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0432229B2 (en) | 1992-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6327550B2 (en) | ||
| US3911886A (en) | Ignition system for an internal combustion engine | |
| US3980922A (en) | Capacitance discharge type breakerless ignition system for an internal combustion engine | |
| US3747582A (en) | Ignition system for multicylinder internal combustion engine | |
| US3408536A (en) | Breakerless oscillator ignition system | |
| US4556040A (en) | Distributorless ignition system for multi-cylinder internal combustion engine with misfire suppression | |
| US2866839A (en) | Ignition systems for internal combustion engines | |
| US3576183A (en) | Ignition system for a two-cycle engine | |
| US5228425A (en) | Ignition system for internal combustion engine | |
| US10753336B2 (en) | Ignition device for igniting an air/fuel mixture in a combustion chamber | |
| US4177782A (en) | Ignition system providing sparks for two ignition plugs in each cylinder from a single ignition coil | |
| US3885541A (en) | Dual ignition coil for internal combustion engine | |
| US3394689A (en) | Resonant ignition system | |
| US3030548A (en) | Ignition circuit | |
| RU2134816C1 (en) | Ignition system and process of feed of charge from assemblage of charging means to assemblage of means for accumulation of charge in ignition system | |
| JPS6079172A (en) | Distributorless type igniter | |
| US2590778A (en) | Dual plug ignition system | |
| US2433462A (en) | Electric spark ignition system for | |
| JPH0432229B2 (en) | ||
| US2790935A (en) | Multiple ignitor capacitor ignition system | |
| US3081360A (en) | Ignition systems for internal combustion engines | |
| US2002114A (en) | Ignition system | |
| US2280426A (en) | Ignition system | |
| JPH061738B2 (en) | Ignition coil for internal combustion engine | |
| JPS6185583A (en) | Igniter for internal combustion engine |