Method of controlling propulsion of marine vehicle
AssigneeABB Schweiz AG
InventorMika Nuutinen
Life of this patent
Estimating the term…
Abstract
A method for controlling a propulsion system of a marine vehicle is disclosed. A controller forms data on pitch angles of at least two foils, which are in a rotatable manner attached with a foil wheel, based on at least an angularly variable eccentricity of the at least two foils and an angle of rotation of the foil wheel. The variable eccentricity is limited at a portion of the angle of rotation of the foil wheel. An actuator arrangement receives the data from the controller and sets the at least two foils at the pitch angles based on the data.
Claims20
A method for controlling a propulsion system of a marine vehicle, the propulsion system having a foil wheel, at least two foils attached with the foil wheel in a rotatable manner, an actuator arrangement, and a controller, the method comprising:
- forming, by the controller, data on pitch angles of the at least two foils based on at least an angularly variable eccentricity of the at least two foils and an angle of rotation of the foil wheel, wherein the variable eccentricity is limited at a portion of the angle of rotation of the foil wheel;
- and
- setting, by the actuator arrangement receiving the data from the controller, the at least two foils at the pitch angles based on the data.
A non-transitory computer-readable medium comprising program instructions which, when run by an apparatus controlling a propulsion system of a marine vehicle, the propulsion system including a foil wheel, at least two foils attached with the foil wheel in a rotatable manner, an actuator arrangement, and a controller, cause the apparatus at least to:
- form, by the controller, data on pitch angles of the at least two foils based on at least an angularly variable eccentricity of the at least two foils and an angle of rotation of the foil wheel, wherein the variable eccentricity is limited at a portion of the angle of rotation of the foil wheel;
- and
- set, by the actuator arrangement receiving the data from the controller, at least two foils at the pitch angles based on the data.
A propulsion system for a marine vehicle, comprising:
- a foil wheel;
- at least two foils, which are in a rotatable manner attached with the foil wheel;
- an actuator arrangement;
- and
- a controller, the controller having one or more processors and one or more memories including computer program code,
- wherein the one or more memories and the computer program code are configured to, with the one or more processors, cause at least the controller to form data on pitch angles of the at least two foils based on at least an angularly variable eccentricity of the at least two foils and an angle of rotation of the foil wheel, wherein the variable eccentricity is limited at a portion of the angle of rotation of the foil wheel, and to communicate the data on the pitch angles to the actuator arrangement, and
- wherein the actuator arrangement is configured to set the at least two foils at the pitch angles based on the data.
A marine vehicle, comprising at least one propulsion system comprising a foil wheel, at least two foils attached with the foil wheel in a rotatable manner, an actuator arrangement, and a controller,
- wherein the controller of the propulsion system is configured to form data on pitch angles of the at least two foils based on at least an angularly variable eccentricity of the at least two foils and an angle of rotation of the foil wheel, wherein the variable eccentricity is limited at a portion of the angle of rotation of the foil wheel, and
- wherein the actuator arrangement is configured to set the at least two foils at the pitch angles based on the data formed by the controller.
Dependencies are inferred from the claim text.