JPS6192769U

JPS6192769U -

Info

Publication number: JPS6192769U
Application number: JP17772184U
Authority: JP
Priority date: 1984-11-22
Filing date: 1984-11-22
Publication date: 1986-06-16

Description

[Brief explanation of the drawing]

第１図は本考案に係る機関の点火時期制御装置
の一実施例を示す電気回路図、第２図はこの考案
の動作を説明する波形図、第３図はこの装置の点
火時期特性図、第４図はこの装置の点火時期の進
角動作を説明する波形図、第５図はこの装置の回
転数Ｎ_１までの進角動作を説明する波形図、第６
図はこの考案の回転数Ｎ_１以降の進角動作を説明
する波形図、第７図は従来の点火時期制御装置の
点火時期特性図である。 ……点火装置、……点火時期制御回路、
……トリガ信号発生回路、８……信号コイル、１
１……Ｆ・Ｆ回路、１２，１９，２０……抵抗、
１３，１７，２１……コンデンサ、１４……オペ
アンプ、１５，１６……コンパレータ。 FIG. 1 is an electric circuit diagram showing an embodiment of the ignition timing control device for an engine according to the present invention, FIG. 2 is a waveform diagram explaining the operation of this device, and FIG. 3 is an ignition timing characteristic diagram of this device. FIG. 4 is a waveform diagram explaining the advance operation of the ignition timing of this device, FIG. 5 is a waveform diagram explaining the advance operation of this device up to the rotation speed _N1 , and FIG.
The figure is a waveform diagram illustrating the advancing operation after the rotational speed _N1 of this invention, and FIG. 7 is an ignition timing characteristic diagram of a conventional ignition timing control device. ...Ignition system, ...Ignition timing control circuit,
...Trigger signal generation circuit, 8 ...Signal coil, 1
1...FF circuit, 12,19,20...resistance,
13, 17, 21... Capacitor, 14... Operational amplifier, 15, 16... Comparator.

補正昭６０．６．２７実用新案登録請求の範囲を次のように補正する
。Amendment June 27, 1986 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】 (1) 機関の回転に同期し所定クランク位置にて
角度信号が発生すると定電流にて一定なる傾斜を
もつて下降または上昇する第１出力とこの第１出
力が第１基準値に達すると定電流にて一定なる傾
斜をもつて上昇または下降する第２出力とを発生
する積分器と、この積分器の第１出力が前記第１
基準値に達するまでの過程で第２基準値に達する
と点火時期決定用のトリガ信号を発生するトリガ
信号発生回路と、前記角度信号に同期して所定の
時定数で上昇し前記積分器の第１出力が前記第１
基準値に達した後下降する前記第２基準を決定す
る積分手段とを備えた事を特徴とする機関の点火
時期制御装置。 (2) 第２基準値を決定する積分手段を抵抗とコ
ンデンサとの並列回路で構成した事を特徴とする
実用新案登録請求の範囲第１項記載の機関の点火
時期制御装置。[Claims for Utility Model Registration] (1) A first output that descends or rises at a constant slope with a constant current when an angle signal is generated at a predetermined crank position in synchronization with the rotation of the engine; an integrator that generates a second output that rises or falls at a constant slope with a constant current when a first reference value is reached;
A trigger signal generation circuit generates a trigger signal for determining ignition timing when a second reference value is reached in the process of reaching the reference value; 1 output is the first
Determine the second standard that decreases after reaching the standard value.
What is claimed is: 1. An ignition timing control device for an engine , characterized in that it is equipped with an integrating means. (2) The ignition timing control device for an engine according to claim 1, wherein the integrating means for determining the second reference value is constituted by a parallel circuit of a resistor and a capacitor.

Claims

[Claims for Utility Model Registration] (1) A first output that descends or rises at a constant slope with a constant current when an angle signal is generated at a predetermined crank position in synchronization with the rotation of the engine; an integrator that generates a second output that rises or falls at a constant slope with a constant current when a first reference value is reached;
A trigger signal generation circuit generates a trigger signal for determining ignition timing when a second reference value is reached in the process of reaching the reference value; 1 output is the first
An ignition timing control device for an engine, comprising: integrating means for generating a second reference voltage that determines the second reference voltage that decreases after reaching the reference value. (2) The ignition timing control device for an engine according to claim 1, wherein the integrating means for determining the second reference is constituted by a parallel circuit of a resistor and a capacitor.