JPS6133973U

JPS6133973U - Ignition system for internal combustion engines

Info

Publication number: JPS6133973U
Application number: JP11816384U
Authority: JP
Inventors: 秀樹湯川
Original assignee: 国産電機株式会社
Priority date: 1984-07-31
Filing date: 1984-07-31
Publication date: 1986-03-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の＝実施例を示した回路図、第−２図乃
至第４図はそれぞれ本考案で用いる点火時期制御回路の
異なる構成例番示した回路図、第５−図は第１図の各部
９信号を示した波形図、第６図は本考案で用いる１次電
流制御用半導体スイッチの他の構成例を示した回路図で
ある。】・・・点火コイルＪ２・・・点火プラグ、５・・・１
次電流制御用サイリスタ、９・・・エキサイタコイル、
１′５・・−１源回路、２０・・・点火時期制御回路、
２１・・・、・信号コイル、２２・・・第１のコシデン
サ、３・・・第２のコンデンサ、２４・・・充電制御用
スイッチ、２５・・・電流制限素子、２６・・・放電制
御用スイッチ、２７・・・電流制限素子、２８・・・リ
セッ、ト用スイッチ、２９・・・第１のトリガ回路、３
０・・・第２のトリガ回路、３１・・・ＰＵＴ０FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIGS. 2 to 4 are circuit diagrams showing different configuration examples of the ignition timing control circuit used in the present invention, and FIG. FIG. 6 is a waveform diagram showing the nine signals of each part in FIG. 1, and FIG. 6 is a circuit diagram showing another example of the structure of the semiconductor switch for primary current control used in the present invention. ]...Ignition coil J2...Spark plug, 5...1
Next current control thyristor, 9... exciter coil,
1'5...-1 source circuit, 20... Ignition timing control circuit,
21... Signal coil, 22... First cocidenser, 3... Second capacitor, 24... Charge control switch, 25... Current limiting element, 26... Discharge control 27... Current limiting element, 28... Reset switch, 29... First trigger circuit, 3
0...Second trigger circuit, 31...PUT0

Claims

[Claims for Utility Model Registration] (1) An ignition coil and one of the ignition coils when electrically connected.
a primary current control thyristor that controls the primary current to suddenly change and induces a high voltage for ignition in the secondary coil of the ignition coil; and a control pole of the primary current control thyristor that controls the ignition timing of the internal combustion engine. An ignition system for an internal combustion engine, comprising: an ignition timing control circuit for detecting an ignition signal at a time; The angle position and the minimum advance angle position are respectively above the threshold level. A signal coil that outputs a second signal at the same time, a first and second capacitor, and a signal coil that outputs a second signal at the maximum advance position under the control of the first signal and the -1st capacitor up to a certain voltage. a first capacitor charging circuit that charges the second capacitor instantaneously; a second capacitor charging circuit that charges the second capacitor at a constant time constant; a second capacitor discharge circuit that discharges the second capacitor at a constant time constant; and a second capacitor discharge circuit that is controlled by the second signal to instantly discharge the residual charge of the second capacitor at the minimum advance angle position. a reset circuit; a switch element having an anode, a gate electrode, and a cathode, the cathode of which is connected to the control pole of the primary current control thyristor; a first capacitor connected in parallel to the circuit between the anode of the switching element and the cathode terminal of the primary current control thyristor; for an internal combustion engine, characterized in that the second capacitor is connected in parallel to a circuit between the gate of the switch element and the cathode terminal of the primary current control thyristor; ,,t
-H-. ,, kae 6, ka'-1-94'): z9. An ignition device for an internal combustion engine according to claim 1 of a certain utility model registration. (3) The ignition device for an internal combustion engine according to claim 1, wherein the switch element is a programmable unijunction transistor.