STEERING CONTROL SYSTEM AND METHOD OF STOPPING STEERING DEVICE

To provide a steering control system capable of preventing a rudder plate driving part from performing undesired movement when a failure occurs.SOLUTION: A steering control system includes: a steering device including a rudder plate driving part for moving a rudder plate in a direction according to a flow direction of supplied hydraulic pressure, a pressurized liquid supply machine for supplying the pressurized liquid in the flow direction according to an input steering signal to the rudder plate driving part, and a shut-off mechanism for switching supplying and stopping of the pressurized liquid from the pressurized liquid supply machine to the rudder plate driving part; a plurality of detectors for detecting states in positions different each other in the steering device; and a determination-shut-off device for determining a state of the steering device according to detection result detected by the plurality of detectors, and stopping supply of the pressurized liquid by the shut-off mechanism on the basis of determination result.SELECTED DRAWING: Figure 1 【課題】 故障発生時に舵板駆動部が不所望な動きをしないようにすることができる操舵制御システムを提供する。【解決手段】 操舵制御システムは、供給される液圧の流れ方向に応じた方向に舵板を動かす舵板駆動部と、入力される操舵信号に応じた流れ方向の圧液を舵板駆動部に供給する圧液供給機と、圧液供給機から舵板駆動部への圧液の供給及びその停止を切換える遮断機構と、を有する操舵装置と、操舵装置における互いに異なる部位の状態を検出する複数の検出器と、複数の検出器にて検出される検出結果に応じて操舵装置の状態を判定し、判定結果に基づいて遮断機構によって圧液の供給を停止する、判定遮断装置と、を備える。【選択図】 図１