JPS6216773U

JPS6216773U -

Info

Publication number: JPS6216773U
Application number: JP10836185U
Authority: JP
Priority date: 1985-07-15
Filing date: 1985-07-15
Publication date: 1987-01-31
Also published as: JPH0422065Y2

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例である点火装置を
示す構成図、第２図は、この考案の一実施例によ
る点火装置を示す回路図、第３図、第４図はこの
考案の一実施例による動作状態を示す状態図およ
び波形図、第５図は従来の点火装置を示す構成図
、第６図は従来の点火装置を示す回路図、第７図
は従来の点火装置における動作を説明する波形図
である。１はフライホイル、１ａは第１の突起部、１ｂ
は第２の突起部、２は第１のピツクアツプ、３は
発電コイル、４，７，８，９，１０，１４，１５
はダイオード、５はコンデンサ、６はサイリスタ
、１３は第２のピツクアツプ、１６はＲＳフリツ
プフロツプ、１７，１９はトランジスタ、１１，
１８はレジスタ、１２は点火コイルである。なお
、図中同一符号は同一又は相当部分を示す。 Fig. 1 is a block diagram showing an ignition system according to an embodiment of this invention, Fig. 2 is a circuit diagram showing an ignition system according to an embodiment of this invention, and Figs. 3 and 4 are an embodiment of this invention. FIG. 5 is a configuration diagram showing a conventional ignition device, FIG. 6 is a circuit diagram showing a conventional ignition device, and FIG. 7 is a diagram showing the operation of a conventional ignition device. FIG. 3 is a waveform diagram for explanation. 1 is a flywheel, 1a is a first protrusion, 1b
2 is the second protrusion, 2 is the first pickup, 3 is the generator coil, 4, 7, 8, 9, 10, 14, 15
is a diode, 5 is a capacitor, 6 is a thyristor, 13 is a second pickup, 16 is an RS flip-flop, 17, 19 are transistors, 11,
18 is a register, and 12 is an ignition coil. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A first signal generating means for generating an advance angle signal and a retard signal in synchronization with the rotation of the engine, an ignition means for generating an ignition voltage by a retard signal to start the engine when the engine is started, and when the engine is rotating in the forward direction. A pair of signals are generated before and after the retard signal outputted by the first signal generating means, and when the engine is reversed, the signals are generated earlier than the retard signal outputted by the first signal generating means. a second signal generating means for generating a pair of signals; based on the signals of the second signal generating means, the ignition voltage is generated by the retard signal when the engine rotates in the forward direction; and the retard signal when the engine rotates in the reverse direction; An internal combustion engine ignition device comprising means for disabling a signal to prevent generation of an ignition voltage.