JPS5985380U

JPS5985380U - Ignition system for internal combustion engines

Info

Publication number: JPS5985380U
Application number: JP18008382U
Authority: JP
Inventors: 湯川　秀樹
Original assignee: 国産電機株式会社
Priority date: 1982-11-30
Filing date: 1982-11-30
Publication date: 1984-06-09

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−図は本考案の一実施例を示した接続図、第２Ａ図
乃至第２Ｃ図はそれぞれ機関の異なる回転速度における
第１図の各部の電圧電流波形を示す線図、第３Ａ図及び
第３Ｂ図はそれぞれ本考案により得られる進角・遅角特
性を示す線図、第４図　　Ａ乃至りはそれぞれ第１図の
実施例で用いること　　−ができる点火位置制御回路の
異なる変形例を示す接続図、第５図は本考案の他の実施
例を示す接続・　図である。１−・・・点火コイル、２・・・点火プラグ、４・・・
コンデンサ、５・・・サイリスク、８・・・ツェナーダ
イオード、９・・・１次電流制御用スイッチ回路、９ａ
、　　９ｂ・・・トリガ信号入力端子、１０・・・１次
電流制御回路、１１・・・発電コイル、１３・・・ダイ
オード、１４・・・抵抗、１５・・・ダイオード、１７
・・・過回転防止回路１．１８・・・制御用コンデンサ
、２０・・・ダイオード、２１・・・ツェナーダイオー
ド、２２．２３・・・抵抗、２４・・・抵抗、２５・・
・信号側路用サイリスタ。Fig. 1 is a connection diagram showing an embodiment of the present invention, Figs. 2A to 2C are line diagrams showing voltage and current waveforms of each part of Fig. 1 at different rotational speeds of the engine, and Figs. Fig. 3B is a diagram showing the advance/retard angle characteristics obtained by the present invention, and Figs. FIG. 5 is a connection diagram showing another embodiment of the present invention. 1-... Ignition coil, 2... Spark plug, 4...
Capacitor, 5... Cyrisk, 8... Zener diode, 9... Switch circuit for primary current control, 9a
, 9b...Trigger signal input terminal, 10...Primary current control circuit, 11...Generating coil, 13...Diode, 14...Resistor, 15...Diode, 17
...Overspeed prevention circuit 1.18...Control capacitor, 20...Diode, 21...Zener diode, 22.23...Resistor, 24...Resistor, 25...
・Thyristor for signal side road.

Claims

[Scope of utility model registration request]

An ignition coil, a primary current control circuit that controls the primary current of the ignition coil so as to change suddenly by the operation of a switch circuit, and a trigger signal input terminal of the switch circuit that generates a wave as the rotational speed of the internal combustion engine increases. An ignition device for an internal combustion engine, comprising a trigger signal supply circuit that provides a trigger signal whose high value increases, and operates the switch circuit to perform an ignition operation when the trigger signal reaches a predetermined level or higher, The control capacitor is charged to a certain voltage with an output voltage whose phase is more advanced than the trigger signal of the generator coil that induces an alternating current voltage in synchronization with the rotation of the internal combustion engine, and the output voltage of the generator coil is A control capacitor charging/discharging circuit that discharges the control capacitor at a fixed time constant from when the voltage drops below the certain voltage, and a trigger signal input terminal of the switch circuit are connected in parallel via a current limiting element. A signal bypass thyristor conducts when a terminal voltage of the control capacitor is equal to or higher than a predetermined level at one point when a signal is generated, and bypasses a part of the trigger signal current from the switch circuit. - An ignition device for an internal combustion engine, characterized in that it is equipped with a hyper-crystal rotation prevention rotation i.