JPS6139482U - Ignition timing control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of the present invention, Figs. 2 to 7 are diagrams showing a first embodiment of the invention, Fig. 2 is a schematic configuration diagram thereof, and Fig. 3 is a program for ignition timing control. Flowchart, FIG. 4 is a flowchart showing a subroutine for resetting the N counter, FIG. 5 is a flowchart showing a subroutine for controlling the N counter and POS counter, and FIG. 6 is a subroutine for calculating the latest reference crank angle. Flowchart showing FIG. 7a ”-e
is a timing chart for explaining the action of each subroutine, Figures 8 and 9 are diagrams showing the second embodiment of this chopstick plan, Figure 8 is its circuit configuration diagram, and Figure 9 is its arithmetic circuit diagram. Detailed circuit diagrams, Figures 10 to 17 are diagrams showing a conventional ignition timing control device, Figure 10 is a schematic configuration diagram thereof, and Figure 11 is a diagram showing a conventional ignition timing control device.
The figure is a timing chart of the output signal of the crank angle sensor, Figure 12 is a circuit diagram of the I/O port and ignition circuit, Figure 13 is a flowchart showing the ignition timing control program, and Figure 14 is the ignition timing control program. FIG. 15 is a diagram showing the relationship between the rotation speed and advance angle value, FIG. 15 is a diagram showing the relationship between the rotation speed, basic injection amount, and advance angle value, and FIG. FIG. 17 is a diagram showing a method of adjusting the crank angle sensor. 1...Engine, 11...Crank angle sensor (reference signal generation means), 1-2...Control unit (combustion stop detection means, calculation means, advance angle value setting) means, ignition signal generating means), 31.31a-31
d...Pressure sensor (pressure detection means), 32...
... Operating state detection means, 30 ... Ignition means, 41 ... Fuel cut detection circuit (combustion stop detection means), 42 ... Calculation circuit (calculation means),
58... Ignition signal generating means, 59...
Lead angle value setting means.

Claims (1)

[Claims for Utility Model Registration] (a) Reference signal generation means for outputting a reference signal corresponding to a predetermined piston position; (b) Pressure detection means for detecting pressure within the cylinder; (C) When the engine is rotating. a combustion stop detection means for detecting that the combustion is in a predetermined combustion stop state when the engine is in the predetermined combustion stop state; (e) Operating state detecting means for detecting the operating state of the engine; (g) Advance angle value setting means for setting an advance angle value corresponding to the ignition timing according to the operating state; g) ignition signal generating means that calculates the ignition crank angle based on the reference crank angle and the advance value, and outputs the ignition signal at a timing corresponding to the ignition crank angle when the reference signal is input; and (h) ignition. An ignition timing control device comprising: ignition means for igniting an air-fuel mixture based on a signal;