JPS63190570U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a basic conceptual diagram of the present invention, FIGS. 2 to 5 are diagrams showing an embodiment of the cylinder identification device for an internal combustion engine according to the present invention, FIG. 2 is an overall configuration diagram thereof, and FIG. A front view of the rotating disk, FIG. 4 is a flowchart of the ignition stroke cylinder discrimination program stored in the ROM, and FIG. 5 is a timing relationship between the cylinder signal Ref and the ignition signal SIGN#i to explain its operation. This is a timing chart showing the following. Fig. 6 is a plan view of a rotating disk of a conventional crank angle detecting device, Fig. 7 is a plan view of a rotating disk of another conventional crank angle detecting device, and Fig. 8 is a plan view of a rotating disk of another conventional crank angle detecting device. This is a timing chart to explain the problem. 20...Crank angle sensor (unit signal generation means, cylinder signal generation means), 30...Vehicle speed sensor (driving state detection means), 50...Control unit (command means, identification means).

Claims (1)

[Claims for Utility Model Registration] (a) unit signal generating means for outputting a unit angle signal at every predetermined unit crank angle as the multi-cylinder internal combustion engine rotates; (b) as the multi-cylinder internal combustion engine rotates; , cylinder signal generating means for outputting a cylinder signal with a different pulse width for each cylinder; (c) driving state detecting means for detecting the driving state of the vehicle; and (d) cylinder signal generating means for outputting a cylinder signal having a different pulse width for each cylinder; (e) a command means for calculating a traveling distance or a traveling time and outputting a command signal for shifting cylinder identification from sequential identification to individual identification when the distance or time reaches a predetermined value; In addition to measuring the pulse width of the cylinder signal based on the measurement results, when the multi-cylinder internal combustion engine is in a predetermined low-to-medium rotation range or when a command signal is output, the engine in the ignition stroke is individually identified from the measurement result. and an identification means for sequentially identifying cylinders that will undergo a subsequent ignition stroke based on the individually identified cylinders when the engine is outside a predetermined low-medium rotation range or when no command signal is output. A cylinder identification device for an internal combustion engine, comprising: .