JPH0296477U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram illustrating the basic configuration of the present invention, FIG. 2 is a schematic configuration diagram showing a vehicle internal combustion engine and its peripheral equipment equipped with the ignition timing control device of the embodiment, and FIG. Flowchart of the ignition timing calculation routine that calculates the basic ignition timing, Figure 4 is a flowchart of the ignition timing correction amount calculation routine that calculates the ignition timing correction amount, and Figure 5 determines the initial value AWOT of the advance angle correction amount θWOT. FIG. 6 is a timing chart for explaining ignition control using the advance angle correction amount θWOT. 1... Internal combustion engine, 7... Throttle valve, 33...
Spark plug, 39... Rotational speed sensor, 41... Throttle position sensor, 43... Pressure sensor, 5
0...Electronic control circuit.

Claims (1)

[Claims for Utility Model Registration] Operating state detection means for detecting the rotational speed and load of an internal combustion engine; determining ignition timing according to the detected rotational speed and load; and determining the ignition timing of the internal combustion engine. an ignition timing control device for an internal combustion engine, comprising: a combustion chamber temperature detection means for detecting a parameter reflecting a combustion chamber temperature of the internal combustion engine; and a load detected by the operating state detection means. an internal combustion engine, comprising: a correction means for correcting the ignition timing of the ignition timing adjustment means to an advanced side, the lower the combustion chamber temperature of the internal combustion engine based on the parameter when the temperature is equal to or higher than a predetermined value; ignition timing control device.