JPS62116171U

JPS62116171U -

Info

Publication number: JPS62116171U
Application number: JP255486U
Authority: JP
Priority date: 1986-01-14
Filing date: 1986-01-14
Publication date: 1987-07-23
Also published as: JPH0450459Y2

Description

[Brief explanation of drawings]

第１図は本考案の構成を示すブロツク図、第２
図は本考案の一実施例を示すシステム図、第３図
は同上実施例における制御を示すフローチヤート
、第４図は従来のハイオク判定領域を示すグラフ
である。１……機関、６……エアフローメータ、７……
スロツトル弁、９……コントロールユニツト、１
０……クランク角センサ、１１……点火栓、１２
……点火コイル、１２ａ……パワートランジスタ
、１３……デイストリビユータ、１４……ノツキ
ングセンサ、１５……スロツトル弁開度センサ。 Figure 1 is a block diagram showing the configuration of the present invention;
FIG. 3 is a system diagram showing an embodiment of the present invention, FIG. 3 is a flowchart showing control in the same embodiment, and FIG. 4 is a graph showing a conventional high-octane judgment area. 1... Engine, 6... Air flow meter, 7...
Throttle valve, 9...Control unit, 1
0... Crank angle sensor, 11... Spark plug, 12
...Ignition coil, 12a...Power transistor, 13...Distributor, 14...Knocking sensor, 15...Throttle valve opening sensor.

Claims

[Scope of utility model registration request]

A standard ignition timing map that stores ignition timing control values according to engine operating conditions in accordance with standard fuel,
In an ignition timing control device for an internal combustion engine, which is provided with an ignition timing control device that refers to an ignition timing control value according to the engine operating state from the standard ignition timing map and controls the ignition timing based on the ignition timing control value, A non-standard ignition timing map storing ignition timing control values according to engine operating conditions in accordance with different fuels, a knocking detection means for detecting the occurrence of knocking in the engine, and a number of times knocking is not detected by the knocking detection means. a knocking non-detection count memory map that stores the number of knocking non-detections according to the engine operating state; and an ignition timing map that the ignition timing control means refers to for each engine operating state corresponding to the engine operating state in the knocking non-detection count memory map. A selection map for storing control values specified in either the ignition timing map or the non-standard ignition timing map, and a selection map corresponding to when the number of times stored in the knocking non-detection number storage map reaches a predetermined number or more. non-standard map designating means for switching the control value to a designated control value of the non-standard ignition timing map;
Standard map designation means for setting a designated control value of a standard ignition timing map in a selection map when the occurrence of knocking is detected by the knocking detection means, and clearing the number of times stored in the corresponding number of times of non-knocking detection storage means; An ignition timing control device for an internal combustion engine, comprising: