JPH0457672U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a configuration diagram showing an embodiment of the present invention, Fig. 3 is a flowchart of the same, and Figs. 4 to 8 are for explaining the operation of the same. This is a diagram. 1...Control device, 2...Crank angle sensor, 3
...Air flow meter, 4...Idle switch, 5...Ignition device, 6...Ignition plug.

Claims (1)

[Scope of utility model registration request] An ignition timing control means for setting the ignition timing based on the engine operating state, an engine rotation speed detection means for detecting the engine rotation speed, a deceleration operation state detection means for detecting the deceleration operation state, and a deceleration operation state detection means for detecting the deceleration operation state. In some cases, the ignition timing retard amount setting means sets the ignition timing retard amount based on the engine operating state immediately before the start of deceleration operation, and the speed change calculates the amount of change in the rotation speed based on the detected engine rotation speed. a correction amount setting means for setting a retardation amount correction amount based on the calculated amount of change; and a correction amount setting means for setting a retardation amount correction amount based on the calculated amount of change; ignition timing correction means for correcting the ignition timing based on the corrected ignition timing retardation amount; and ignition timing correction means for correcting the ignition timing based on the corrected ignition timing retardation amount. An ignition timing control device for an internal combustion engine, comprising: ignition timing control means for igniting a plug.