KNOCKING CONTROL DEVICE IN GAS ENGINE

摘要

A knocking control system (20) for a gas engine (1) of the present invention, being configured to calculate a knocking occurrence ratio (SEV) which is a ratio of a cycle number of cycles in which a predetermined knocking occurs for a period of the cycles of the predetermined cycle number, to the predetermined cycle number, decide a target value of an ignition timing of the ignition device based on a deviation (”SEV) between an occurrence ratio delay calculation value (SEV AVE ) obtained by performing delay calculation of the knocking occurrence ratio and a predetermined occurrence ratio target value (SEV SET ), and drive the ignition device so that the ignition timing reaches a command value (IGN) decided according to the target value.