Control of propeller shaft movement
AssigneeABB Schweiz AG
InventorsBørre Gundersen, Frank Wendt, Jaroslaw Nowak, Matko Barisic
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Abstract
There is provided mechanisms for controlling movement of a propeller shaft on a vessel. A controller includes processing circuitry. The processing circuitry is configured to cause the controller to detect movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft. The processing circuitry is configured to cause the controller to control movement of the propeller shaft according to the determined signature.
Claims21
A controller for controlling movement of a propeller shaft on a vessel, the controller comprising processing circuitry, the processing circuitry being configured to cause the controller to:
- detect movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft;
- and
- control movement of the propeller shaft according to the determined signature;
- wherein the processing circuitry is further configured to receive a currently used throttle level for driving the propeller shaft.
An arrangement for controlling movement of a propeller shaft on a vessel, the arrangement comprising:
- a controller for controlling movement of the propeller shaft on the vessel, the controller including processing circuitry, the processing circuitry being configured to cause the controller to:
- detect movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft;
- and
- control movement of the propeller shaft according to the determined signature;
- a vibration sensor configured to provide a signal indicative of the sustained oscillation to the controller;
- and
- wherein the controller includes a propulsion control unit configured to control movement of the propeller shaft according to the determined signature.
An electrical propulsion vessel comprising:
- a controller for controlling movement of a propeller shaft on the vessel, the controller including processing circuitry, the processing circuitry being configured to cause the controller to:
- detect movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft;
- and
- control movement of the propeller shaft according to the determined signature;
- and
- a vibration sensor configured to provide a signal indicative of the sustained oscillation to the controller;
- and
- wherein the controller includes a propulsion control unit configured to control movement of the propeller shaft according to the determined signature.
A method for controlling movement of a propeller shaft on a vessel, the method comprising:
- detecting movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft;
- controlling movement of the propeller shaft according to the determined signature;
- and
- receiving a currently used throttle level for driving the propeller shaft.
A computer program for controlling movement of a propeller shaft on a vessel, the computer program comprising computer code which, when run on processing circuitry of a controller, causes the controller to:
- detect movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft;
- control movement of the propeller shaft according to the determined signature;
- and
- receive a currently used throttle level for driving the propeller shaft.
A controller for controlling movement of a propeller shaft on a vessel, the controller comprising processing circuitry, the processing circuitry being configured to cause the controller to:
- detect movement of the propeller shaft by determining a signature of a sustained oscillation of the propeller shaft;
- and
- control movement of the propeller shaft according to the determined signature;
- wherein movement of the propeller shaft is represented by a measured waveform of the sustained oscillation of the propeller shaft.
Dependencies are inferred from the claim text.