JPH0437874U

JPH0437874U -

Info

Publication number: JPH0437874U
Application number: JP7741090U
Authority: JP
Priority date: 1990-07-23
Filing date: 1990-07-23
Publication date: 1992-03-31

Description

[Brief explanation of the drawing]

第１図は本考案に係る内燃機関の点火時期制御
装置の構成を示すブロツク図、第２図は同上装置
の一実施例のハードウエア構成図、第３図は同上
実施例の作用を説明するフローチヤート、第４図
は同上実施例の作用を説明するタイムチヤートで
ある。１……制御ユニツト、２……ＣＰＵ、３……Ｒ
ＯＭ、４……ＲＡＭ、５……Ｉ／Ｏ、６……点火
装置、７……カム角センサ、８……クランク角セ
ンサ、１１……圧力センサ。 Fig. 1 is a block diagram showing the configuration of an ignition timing control device for an internal combustion engine according to the present invention, Fig. 2 is a hardware configuration diagram of an embodiment of the above device, and Fig. 3 explains the operation of the above embodiment. The flowchart and FIG. 4 are time charts for explaining the operation of the above embodiment. 1...Control unit, 2...CPU, 3...R
OM, 4...RAM, 5...I/O, 6...Ignition device, 7...Cam angle sensor, 8...Crank angle sensor, 11...Pressure sensor.

Claims

[Scope of utility model registration request]

A cam angle detection means for outputting a cam angle detection signal for specifying the cylinder at compression top dead center for each cylinder of the engine, a crank angle detection means for detecting a rotation angle of a crankshaft, and the cam angle detection means ignition signal output means for outputting an ignition signal to an ignition device by measuring an ignition timing according to engine operating conditions from a crank angle position corresponding to compression top dead center measured from the output generation timing of the internal combustion engine. The timing control device includes a pressure detection means for detecting the cylinder pressure, a compression top dead center position detection means for detecting the actual compression top dead center position based on the detected pressure, and a compression top dead center position detection means for detecting the actual compression top dead center position based on the detected pressure. storage means for calculating and storing the amount of deviation from an ideal value of the difference between the dead center position and the output generation timing of the cam angle detection means; An ignition timing control device for an internal combustion engine, comprising: ignition timing setting means for setting the ignition timing by subtracting the stored deviation amount from the ignition timing when the difference is assumed to be an ideal value. .