Ship control system

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  • Small ferries typically feature two propellers, one in bow and one in stern. Propellers can rotate by 360° to
    give requested maneuverability to the ferry.
  • Each propeller is driven by two engines located in two separate engine rooms.
  • In each engine room is also one auxiliary gen-set.
  • Propulsion engines are controlled by InteliDrive DCU Marine, in PROP configuration, via J1939 bus. Redundant J1587 bus is used in case of J1939 failure.
  • Requested speed is defined by 4–20 mA signal from the bridge.
  • InteliDrive controllers make propulsion load-sharing to keep engines evenly loaded.
  • Engines of auxiliary gen-sets are controlled by InteliDrive DCU Marine in AUX configuration.
  • InteliDrive controllers communicate to a ship’s control and visualization system via Modbus RTU/TCP converter and Ethernet bus.
  • Optimal configurable structure of InteliDrive’s Modbus message together with high communication speed of Ethernet bus gives immediate information on engine speed and torque required on the bridge of a quickly maneuvering ship.