Method for controlling ship, ship control program, ship control system, and ship

By comparing rotation speeds of power sources and generators to identify abnormalities, the method and system improve the reliability of ship propulsion mode management, addressing actuator failure-related issues.

EP4763689A1Pending Publication Date: 2026-06-24YANMAR HLDG CO LTD
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
YANMAR HLDG CO LTD
Filing Date
2024-09-09
Publication Date
2026-06-24

AI Technical Summary

Technical Problem

Existing ship control systems relying on actuators for switching between propulsion modes are prone to reliability issues due to potential failures, leading to deviations in operation mode management.

Method used

A method and system that compares rotation speeds of multiple power sources and a propulsive force generator to detect abnormalities in actuators and power transmitters, ensuring reliable operation mode management by determining actuator and power transmitter anomalies.

Benefits of technology

Enhances the reliability of operation mode management by detecting and addressing abnormalities in the ship's power transmission system, thereby maintaining consistent propulsion performance.

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Abstract

[Problem]A method for controlling a ship, a ship control program, a ship control system, and a ship that can improve reliability of a management state of an operation mode are provided. [Solution]The method for controlling a ship is employed in a ship that has a plurality of power sources including a first power source (engine 31) and a second power source (motor 32) and transmits power supplied from at least one of the plurality of power sources to the propulsive force generator 4 through the power transmitter 33 for propulsion of a hull. The control method includes determining at least two of the first power source, the second power source, and the propulsive force generator 4 as comparison targets and comparing the rotational speed between the comparison targets, and determining an abnormality of at least one of an actuator 34 that drives a power transmitter 33 and the power transmitter 33 based on the comparison result on the rotational speed.
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Citation Information

Patent Citations

  • Power distribution system for vessel and vessel

    JP2023037810A

  • Clutch slip detection device

    JP2003336662A

  • gear control device

    JP3953050B2

  • Ship drive control method

    JP4421344B2

  • Propulsion system

    US20220258845A1