JPH0246078U

JPH0246078U -

Info

Publication number: JPH0246078U
Application number: JP12510388U
Authority: JP
Priority date: 1988-09-27
Filing date: 1988-09-27
Publication date: 1990-03-29

Description

[Brief explanation of drawings]

第１図は本考案の概略構成を示すブロツク図、
第２図は本考案のエンジンの点火時期制御装置の
具体例を示す全体構成図、第３図はコントローラ
の処理を説明するためのフローチヤート図である
。１……エンジン、７……スロツトル弁、１２…
…点火プラグ、１３……点火コイル、１４……デ
イストリビユータ、１６……エアフローセンサ、
１７……アイドルスイツチ、１９……温度センサ
、２２……クラツチスイツチ、２３……ギヤスイ
ツチ、２８……コントローラ、２８ａ……目標点
火時期演算手段、２８ｂ……無負荷加速時補正手
段、２８ｃ……冷間時補正手段、２８ｄ……点火
時期制御手段、Ａ（１４，１６）……運転状態検
出手段、Ｂ（１６）……加速検出手段、Ｃ（２２
，２３）……連結状態検出手段、Ｄ１９……エン
ジン温度検出手段。 FIG. 1 is a block diagram showing the schematic structure of the present invention.
FIG. 2 is an overall configuration diagram showing a specific example of the engine ignition timing control device of the present invention, and FIG. 3 is a flowchart for explaining the processing of the controller. 1...Engine, 7...Throttle valve, 12...
... Spark plug, 13 ... Ignition coil, 14 ... Distributor, 16 ... Air flow sensor,
17...Idle switch, 19...Temperature sensor, 22...Clutch switch, 23...Gear switch, 28...Controller, 28a...Target ignition timing calculation means, 28b...No-load acceleration correction means, 28c... Cold time correction means, 28d...Ignition timing control means, A(14, 16)...Operating state detection means, B(16)...Acceleration detection means, C(22
, 23)... Connection state detection means, D19... Engine temperature detection means.

Claims

[Scope of Claim for Utility Model Registration] Target ignition timing according to the detected operating state of the engine upon receiving the output from the operating state detection means that detects the operating state of the engine such as the rotation speed, crank angle, and intake air amount. an output from the acceleration detection means that detects an acceleration state of the engine equal to or higher than a predetermined value; and an output from the connection state detection means that detects the connection state between the engine and the drive system. and a no-load acceleration correction means for outputting an advance angle correction signal for the target ignition timing during no-load acceleration when the engine and drive system are not connected; and an engine temperature detection means for detecting the engine temperature. cold time correction means that receives the output and outputs an advance correction signal for the target ignition timing when the engine temperature is below a predetermined value; the target ignition timing calculation means; the no-load acceleration correction means; and the cold time correction means. Ignition timing control that receives each output from the correction means and controls the ignition timing by prohibiting advance angle correction during no-load acceleration with respect to the target ignition timing when a cold advance angle correction signal is input. An ignition timing control device for an engine, comprising: means;