JPS6297273U

JPS6297273U -

Info

Publication number: JPS6297273U
Application number: JP18834585U
Authority: JP
Priority date: 1985-12-09
Filing date: 1985-12-09
Publication date: 1987-06-20
Also published as: JPH0410382Y2

Description

[Brief explanation of the drawing]

第１図は本考案が適用されたエンジンの着火時
期制御装置を含む点火装置の回路構成図、第２図
は２つの回転検出回路の要部をなす回転円板の構
成図、第３図は第１図点火装置の要部各部分の信
号を模式的に示すタイムチヤートである。１……着火時期制御装置、２……回転検出回路
、３……回転検出回路、４……論理回路、５……
定周期発振器、６……シフトレジスタ、７……シ
フトレジスタ、８……ビツト付合せ回路、１１…
…点火ユニツト、１２……着火プラグ、１３……
イグニツシヨンコイル、１４……トランジスタ、
１５……トランジスタ、２１……電源装置、２２
……発電機、２３……整流回路、２４……平滑回
路、２５……定電圧回路、２６……分圧回路、４
０……回転円板。 Figure 1 is a circuit configuration diagram of an ignition system including an ignition timing control device for an engine to which the present invention is applied, Figure 2 is a configuration diagram of a rotating disk that forms the main parts of two rotation detection circuits, and Figure 3 is FIG. 1 is a time chart schematically showing the signals of each main part of the ignition system. DESCRIPTION OF SYMBOLS 1... Ignition timing control device, 2... Rotation detection circuit, 3... Rotation detection circuit, 4... Logic circuit, 5...
Fixed period oscillator, 6...shift register, 7...shift register, 8...bit matching circuit, 11...
...Ignition unit, 12...Spark plug, 13...
Ignition coil, 14...transistor,
15...transistor, 21...power supply device, 22
... Generator, 23 ... Rectifier circuit, 24 ... Smoothing circuit, 25 ... Constant voltage circuit, 26 ... Voltage dividing circuit, 4
0...Rotating disk.

補正昭６１．４．７考案の名称を次のように補正する。考案の名称エンジンの着火時期制御装置実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment April 7, 1981 The name of the invention is amended as follows. Title of the invention Engine ignition timing control device The scope of the utility model registration claims and the brief description of the drawings are amended as follows.

【実用新案登録請求の範囲】エンジン回転数に対応した繰返し周期で異なる
パルス列の検出信号を発する２つの回転検出回路
と、発せられた前記各検出信号を受けて論理演算し
、且つその演算結果からエンジンの回転速度を示
すデータパルス群を生成する論理回路と、生成されたデータパルス群を受けてエンジンの
回転速度を検出する回転速度検出回路と、検出されたエンジンの回転速度が一定速度より
も低速領域であればエンジンの着火時期に進相特
性を持たせ、且つ一定速度かりも高速領域であれ
ば遅相特性を持たせることができると共に、各着
火時期を適宜設定可能な設定回路とを有すること
を特徴とするエンジンの着火時期制御装置。[Claims for Utility Model Registration] Two rotation detection circuits that emit detection signals of different pulse trains at a repetition period corresponding to the engine rotation speed, and a circuit that performs logical operations upon receiving each of the above-mentioned detection signals, and that performs logical operations based on the operation results. a logic circuit that generates a data pulse group indicating the rotational speed of the engine; a rotational speed detection circuit that detects the engine rotational speed in response to the generated data pulse group; The ignition timing of the engine can be given a phase-advance characteristic in the low-speed range, and a slow-phase characteristic in the constant-speed or high-speed range, and is equipped with a setting circuit that can set each ignition timing as appropriate. An engine ignition timing control device comprising:

【図面の簡単な説明】第１図は適用されたエンジンの着火時期制御装
置を含む点火装置の回路構成図、第２図は２つの
回転検出回路の要部をなす回転円板の構成図、第
３図は第１図点火装置の要部各部分の信号を模式
的に示すタイムチヤートである。１……着火時期制御装置、２……回転検出回路
、３……回転検出回路、４……論理回路、５……
定周期発振器、６……シフトレジスタ、７……シ
フトレジスタ、８……マグニチユチユードコンパ
レータ、１１……点火ユニツト、１２……着火プ
ラグ、１３……イグニツシヨンコイル、１４……
トランジスタ、１５……トランジスタ、２１……
電源装置、２２……発電機、２３……整流回路、
２４……平滑回路、２５……定電圧回路、２６…
…分圧回路、４０……回転円板。[Brief Description of the Drawings] Fig. 1 is a circuit configuration diagram of an ignition system including an ignition timing control device for an applied engine, and Fig. 2 is a configuration diagram of a rotating disk forming the main parts of two rotation detection circuits. FIG. 3 is a time chart schematically showing the signals of the main parts of the ignition system shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Ignition timing control device, 2... Rotation detection circuit, 3... Rotation detection circuit, 4... Logic circuit, 5...
Fixed period oscillator, 6... Shift register, 7... Shift register, 8... Magnitude comparator, 11... Ignition unit, 12... Spark plug, 13... Ignition coil, 14...
Transistor, 15...Transistor, 21...
Power supply device, 22... Generator, 23... Rectifier circuit,
24... Smoothing circuit, 25... Constant voltage circuit, 26...
...Voltage dividing circuit, 40...Rotating disk.

Claims

[Claims for Utility Model Registration] Two rotation detection circuits that emit detection signals of different pulse trains at a repetition period corresponding to the engine rotation speed, and a circuit that performs logical operations upon receiving each of the above-mentioned detection signals, and that performs logical operations based on the operation results. a logic circuit that generates a data pulse group indicating the rotational speed of the engine; a rotational speed detection circuit that detects the engine rotational speed in response to the generated data pulse group; The ignition timing of the engine can be given a phase-advance characteristic in a low-speed region, and a slow-phase characteristic in a region higher than a constant speed, and a setting circuit that can appropriately set each ignition timing is provided. An engine ignition timing control device comprising: