Title:
ENGINE SYSTEM FOR SHIP PROPULSION MACHINE AND SHIP HAVING THIS ENGINE SYSTEM
Document Type and Number:
Japanese Patent JP2015034500
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an engine system for a ship propulsion machine capable of judging positively occurrence of abnormal state and starting to limit intake amount.SOLUTION: An engine for generating driving force of an outboard engine propulsion machine includes a motor-driven throttle device 40 and an ignition plug 38. An engine system for a ship propulsion machine includes an ignition timing control unit 71 for controlling ignition timing of the ignition plug 38, a knock sensor 56 for detecting a knocking at an engine, a knock lag control unit 72 for retarding an ignition timing of the ignition plug 38 only by a unit lag with the ignition timing control unit 71 when the knocking is detected, an abnormality determination unit 73 for judging occurrence of abnormality when a state in which knocking is detected in an interval within a prescribed time is continued, and an intake amount limiting unit 74 for controlling the motor-driven throttle device 40 on the basis of the judgement of abnormal state and restricting an intake amount of the engine.
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Inventors:
KINOSHITA YOSHIMICHI
Application Number:
JP2013165390A
Publication Date:
February 19, 2015
Filing Date:
August 08, 2013
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F02D45/00; F02D43/00; F02P5/15; F02P5/152; F02P5/153
Attorney, Agent or Firm:
Kosaku Inaoka
Kawasaki Real husband
Kawasaki Real husband