| 摘要 |
PROBLEM TO BE SOLVED: To provide an ignition timing control device capable of exerting an ignition timing control to suppress the occurrence of knocking in an internal combustion engine that does not include a function of the ignition timing control to suppress the occurrence of knocking while suppressing cost increase.SOLUTION: An ignition timing control device 31 is capable of adjusting ignition timing (for example, correcting a retarded position) so as to provide appropriate ignition timing in response to a knocking signal since an ignition timing adjuster 43 computes reference ignition timing and adjusts the reference ignition timing using the knocking signal. Since the ignition timing adjuster 43 computes the reference ignition timing using a detection signal from an engine revolving speed sensor 27, there is no need to additionally provide a control device for computing the reference ignition timing separately from the ignition timing adjuster 43, an increase in the number of control devices can be suppressed, and an increase in manufacturing cost can be thereby suppressed. |
