PROBLEM TO BE SOLVED: To provide a marine vessel steering system capable of preventing a propeller shaft and a bearing from being damaged when a marine vessel that is steered in a state that a propeller blade is exposed from a water surface turns.SOLUTION: When an exposure state detection unit 11 is detecting a state in which a propeller blade of a propeller 4 is exposed from a water surface more than a predetermined amount, and a turning direction detection unit 13 is detecting that a turning direction of a marine vessel is the same direction as the rotating direction of the propeller, an alarm signal generation unit 15 generates an alarm signal before an exposure amount of the propeller blade being detected by the exposure state detection unit 11, a rotation speed being detected by a rotation speed detection unit 12, and a steering angle being detected by a steering angle detection unit reach a condition that a bearing and a propeller shaft 1 are damaged by propeller force that presses the propeller shaft 1 downward.SELECTED DRAWING: Figure 3

    【課題】プロペラ翼を水面から露出させた状態で操舵される船舶が旋回したときに、プロペラ軸と軸受の損傷の発生を防止することができる船舶の操舵システムを提供する。【解決手段】アラーム信号発生部15は、露出状態検出部11でプロペラ4のプロペラ翼が水面から予め定めた量より多く露出している状態を検出しており且つ、旋回方向検出部13で、船舶の旋回方向がプロペラの回転方向と同じ方向であることを検出しているときに、露出状態検出部11で検出しているプロペラ翼の露出量と、回転速度検出部12で検出している回転速度及び舵角検出部で検出している舵角が、プロペラ軸1を下方に押すプロペラフォースによって軸受及びプロペラ軸1が損傷する条件に達する前にアラーム信号を発生する。【選択図】図3


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    Title :

    MARINE VESSEL STEERING SYSTEM AND MARINE VESSEL STEERING METHOD


    Additional title:

    船舶の操舵システム及び船舶の操舵方法


    Contributors:

    Publication date :

    2017-03-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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