CONTROL METHOD FOR MARINE ENGINE AND CONTROL DEVICE OF THE SAME

PROBLEM TO BE SOLVED: To improve fuel efficiency, by efficiently switching a fuel save mode and a normal mode.SOLUTION: A set rotation speed and an actual rotation speed are input in a controller 4. In a normal mode, a PID controller 12 calculates an output value to a fuel supply means of a marine e...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI TOSHIKAZU, KAJIYAMA KATSUNORI, SHIGAKI TOMIO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MARINE PROPULSION OR STEERING MECHANICAL ENGINEERING PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve fuel efficiency, by efficiently switching a fuel save mode and a normal mode.SOLUTION: A set rotation speed and an actual rotation speed are input in a controller 4. In a normal mode, a PID controller 12 calculates an output value to a fuel supply means of a marine engine 2 based on a difference between the set rotation speed and the actual rotation speed. The PID controller 12 also includes a fuel save mode for reducing a varying width in an output value per unit time compared to the normal mode. Detecting units 20, 22, 24, 26, 28 are provided for monitoring changes in a set rotation speed and an actual rotation speed. In the fuel save mode, when a set rotation speed and an actual rotation speed exceed predetermined conditions continuously for a predetermined time, the PID controller 12 is switched into the normal mode.