Kawasaki Jukogyo Kabushiki Kaisha

Tsukasa Imamura

Tomohiko Sugimoto

Hiroyoshi Ishii

Tetsuo Tokuoka

A knocking control system comprises a knocking determiner device for determining whether or not knocking with a predetermined intensity or higher has occurred in a cylinder of a gas engine in each cycle; an integration variable calculator which adds to an integration variable CT when the knocking determiner device determines that the knocking with the predetermined intensity or higher has occurred, and subtracts from the integration variable CT when the knocking determiner determines that the knocking with the predetermined intensity or higher has not occurred; and a main controller for reducing a power output of the cylinder if the integration variable CT is not less than a threshold.

Knocking control system for gas engine

A control system for controlling a power output of a gas engine of the present invention includes a target value setting section for setting as a target value a restricted power output which is less than a predetermined power output when a source gas pressure of a gas fuel is less than a predetermined value required to inject the gas fuel against an intake-air pressure according to the predetermined power output, a power output setting section for setting a set value of a power output based on the target value set by the target value setting section, and a power output control section for controlling the power output so that the power output reaches the set value set by the power output setting section.

Control system and control method of gas engine

A knocking control system for a gas engine 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 (&#x394;SEV) between an occurrence ratio delay calculation value (SEV) obtained by performing delay calculation of the knocking occurrence ratio and a predetermined occurrence ratio target value (SEV), and drive the ignition device so that the ignition timing reaches a command value (IGN) decided according to the target value.

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Kobe, Japan

Tsukasa Imamura