JPS6298772U - - Google Patents
Info
- Publication number
- JPS6298772U JPS6298772U JP18959585U JP18959585U JPS6298772U JP S6298772 U JPS6298772 U JP S6298772U JP 18959585 U JP18959585 U JP 18959585U JP 18959585 U JP18959585 U JP 18959585U JP S6298772 U JPS6298772 U JP S6298772U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- ignition
- thyristor
- coil
- circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 5
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は第１図の各部の信号波形を示す波形図、第３図
は本考案の装置の点火特性を従来の点火装置の点
火特性と比較して示した線図である。
ＩＧ……点火コイル、Ｌｅ……エキサイタコイ
ル、Ｌｓ……信号コイル、Ｐ……点火プラグ、Ｃ
１……点火エネルギー蓄積用コンデンサ、Ｃ２…
…点火時期制御用コンデンサ、Ｄ１〜Ｄ５……ダ
イオード、ＺＤ……ツエナーダイオード、Ｒ１〜
Ｒ６……抵抗、Ｆｔ……電界効果トランジスタ、
Ｔｒ……トランジスタ、ＳＣ……信号短絡用サイ
リスタ制御用スイツチ回路、Ｔ……放電制御用サ
イリスタトリガ回路。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a waveform diagram showing signal waveforms of each part of Fig. 1, and Fig. 3 shows the ignition characteristics of the device of the present invention and the ignition characteristics of a conventional ignition device. FIG. IG...Ignition coil, Le...Exciter coil, Ls...Signal coil, P...Spark plug, C
1...Ignition energy storage capacitor, C2...
...Ignition timing control capacitor, D1-D5...Diode, ZD...Zener diode, R1-
R6...Resistance, Ft...Field effect transistor,
Tr: transistor, SC: thyristor control switch circuit for signal short circuit, T: thyristor trigger circuit for discharge control.
Claims (1)
機内に配置されたエキサイタコイルの一方の半サ
イクルの出力で一方の極性に充電される点火エネ
ルギー蓄積用コンデンサと、導通した際に前記点
火エネルギー蓄積用コンデンサの電荷を前記点火
コイルの１次コイルを通して放電させるように設
けられた放電制御用サイリスタと、内燃機関の所
定の回転角度位置で１サイクルの信号を発生する
信号コイルの出力を入力として内燃機関の点火時
期に前記サイリスタをトリガする放電制御用サイ
リスタトリガ回路とを備えた内燃機関用点火装置
において、 前記トリガ回路は、 前記信号コイルの先の半サイクルの出力で前記
サイリスタに点弧信号を供給する第１の信号供給
回路と、 点火時期制御用コンデンサと、 前記信号コイルの後の半サイクルの出力で前記
点火時期制御用コンデンサを一方の極性に充電す
る点火時期制御用コンデンサ充電回路と、 前記点火時期制御用コンデンサの充電電流が一
定値以上になつた時に前記放電制御用サイリスタ
に点弧信号を与える第２の信号供給回路と、 前記点火時期制御用コンデンサの電荷を一定の
時定数で放電させる放電回路と、 導通した際に前記信号コイルの先の半サイクル
の出力を短絡するように設けられた信号短絡用サ
イリスタと、 前記信号コイルの先の半サイクルの出力が発生
した時に前記信号短絡用サイリスタに点弧信号を
供給する信号短絡用サイリスタトリガ回路と、 前記点火時期制御用コンデンサの両端電圧が一
定のレベル以上の時には遮断状態を保持して前記
信号短絡用サイリスタへの点弧信号の供給を許容
し、前記点火時期制御用コンデンサの両端電圧が
一定のレベル未満の時に導通して前記信号短絡用
サイリスタへの点弧信号を該信号短絡用サイリス
タから側路する信号短絡用サイリスタ制御用スイ
ツチ回路とを具備していることを特徴とする内燃
機関用点火装置。[Claim for Utility Model Registration] An ignition coil and an ignition energy storage capacitor that is charged to one polarity by the output of one half cycle of an exciter coil disposed in a generator driven by an internal combustion engine are electrically connected. a discharge control thyristor provided to discharge the charge of the ignition energy storage capacitor through the primary coil of the ignition coil; and a signal coil that generates a one-cycle signal at a predetermined rotation angle position of the internal combustion engine. an ignition device for an internal combustion engine, comprising: a discharge control thyristor trigger circuit that receives the output of the signal coil as an input and triggers the thyristor at the ignition timing of the internal combustion engine; a first signal supply circuit that supplies an ignition signal to the thyristor; an ignition timing control capacitor; and ignition timing control that charges the ignition timing control capacitor to one polarity with the output of the subsequent half cycle of the signal coil. a second signal supply circuit that provides an ignition signal to the discharge control thyristor when the charging current of the ignition timing control capacitor exceeds a certain value; a discharge circuit for discharging at a constant time constant; a signal shorting thyristor provided to short-circuit the output of the previous half cycle of the signal coil when conductive; and the output of the previous half cycle of the signal coil. a signal short circuit thyristor trigger circuit that supplies an ignition signal to the signal short circuit thyristor when the signal short circuit occurs; Allowing the supply of an ignition signal to the thyristor, conducts when the voltage across the ignition timing control capacitor is less than a certain level, and bypasses the ignition signal to the signal shorting thyristor from the signal shorting thyristor. An ignition device for an internal combustion engine, comprising a switch circuit for controlling a thyristor for signal shorting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985189595U JPH041341Y2 (en) | 1985-12-11 | 1985-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985189595U JPH041341Y2 (en) | 1985-12-11 | 1985-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6298772U true JPS6298772U (en) | 1987-06-23 |
| JPH041341Y2 JPH041341Y2 (en) | 1992-01-17 |
Family
ID=31142042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985189595U Expired JPH041341Y2 (en) | 1985-12-11 | 1985-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041341Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732224A (en) * | 1980-08-06 | 1982-02-20 | Kurorera Kogyo Kk | Carcinostatic agent |
| JPS5849707A (en) * | 1981-09-18 | 1983-03-24 | Asahi Chem Ind Co Ltd | Catalyst for polymerizing olefin |
| JPS5979072A (en) * | 1982-10-29 | 1984-05-08 | Kokusan Denki Co Ltd | Ignition device for internal-combustion engine |
-
1985
- 1985-12-11 JP JP1985189595U patent/JPH041341Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732224A (en) * | 1980-08-06 | 1982-02-20 | Kurorera Kogyo Kk | Carcinostatic agent |
| JPS5849707A (en) * | 1981-09-18 | 1983-03-24 | Asahi Chem Ind Co Ltd | Catalyst for polymerizing olefin |
| JPS5979072A (en) * | 1982-10-29 | 1984-05-08 | Kokusan Denki Co Ltd | Ignition device for internal-combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH041341Y2 (en) | 1992-01-17 |
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