JPH0163777U

JPH0163777U -

Info

Publication number: JPH0163777U
Application number: JP1987159254U
Authority: JP
Priority date: 1987-10-20
Filing date: 1987-10-20
Publication date: 1989-04-24

Description

[Brief explanation of the drawing]

第１図は本考案の構成を説明するブロツク図、
第２図は本考案の実施例のハードウエア構成図、
第３図〜第５図は第１実施例のそれぞれノツク制
御、学習制御、点火時期設定の各フローチヤート
、第６図は第１実施例の作用を説明する図、第７
図及び第８図は第２実施例のそれぞれノツク制御
及び点火時期設定の各フローチヤート、第９図は
第２実施例の作用を説明する図である。１……ノツクセンサ、２……ノツキング処理回
路、３……クランク角センサ、４……負荷スイツ
チ、５……負荷センサ、６……コントロールユニ
ツト、７……ＣＰＵ、８……ＲＯＭ、９……ＲＡ
Ｍ、１０……Ｉ／Ｏインターフエース、１２……
パワートランジスタ、１３……点火コイル。 Figure 1 is a block diagram explaining the configuration of the present invention.
FIG. 2 is a hardware configuration diagram of an embodiment of the present invention.
3 to 5 are flowcharts of knock control, learning control, and ignition timing setting in the first embodiment, respectively. FIG. 6 is a diagram explaining the operation of the first embodiment, and FIG.
8 and 8 are flowcharts of knock control and ignition timing setting, respectively, in the second embodiment, and FIG. 9 is a diagram explaining the operation of the second embodiment. DESCRIPTION OF SYMBOLS 1... Knock sensor, 2... Knocking processing circuit, 3... Crank angle sensor, 4... Load switch, 5... Load sensor, 6... Control unit, 7... CPU, 8... ROM, 9... R.A.
M, 10...I/O interface, 12...
Power transistor, 13...Ignition coil.

Claims

[Scope of utility model registration request]

Knock detection means detects the presence or absence of knocking in the engine; operating state detection means detects the operating state of the engine using engine load and rotational speed as parameters; ignition timing setting means for correcting the occurrence or non-occurrence of the engine and operating the ignition system based on this; and operating range determining means for determining whether the engine is in a predetermined operating range based on the output of the operating state detecting means. a correction amount learning means for learning and storing a basic ignition timing correction amount when the engine is in a predetermined operating region; the operating region determining means detecting that the engine has changed to the predetermined operating region; and retard correction start means for starting retard correction of ignition timing in relation to the learning value stored in the correction amount learning means when occurrence of knocking is detected. Ignition timing control device.