Back to results
US 12,583,569 B2Granted
Method of controlling propulsion system of marine vehicle and propulsion system
AssigneeABB Schweiz AG
InventorsMika Nuutinen, Wei Ji, Bin Liu, Veli-Pekka Peljo, Winston Garcia-Gabin, Kateryna Mishchenko
Life of this patent
Estimating the term…
Abstract
A method of controlling a propulsion system of a marine vehicle by a controller, which forms data on a pitch angle (γ(θ)) of at least one foil based on an angularly variable wake field (W(θ)) affecting the at least one foil and an angle (θ) of a rotation of the foil wheel. An actuator arrangement that receives the data from the controller sets the at least one foil at the pitch angle (γ(θ)) based on the data.
Claims17
A method of controlling a propulsion system of a marine vehicle, comprising:
- decomposing a scaled wake field into a sum of an undisturbed contribution and an extra contribution induced by at least one foil;
- setting the induced scaled contribution caused by every foil constant;
- determining an angularly variable wake field (W(θ)) at least approximately based on the induced scaled contribution that is locally constant:
- forming, by a controller, data on a pitch angle (γ(θ)) of the at least one foil, which is individually controllable and in a rotatable manner attached with a foil wheel, based on the angularly variable wake field (W(θ)) affecting the at least one foil and an angle (θ) of a rotation of the foil wheel;
- and
- setting, by an actuator arrangement receiving the data from the controller, the at least one foil at the pitch angle (γ(θ)) based on the data.
3 more elements
A propulsion system of a marine vehicle, the propulsion system comprising:
- a foil wheel, at least one foil, which is individually controllable and in a rotatable manner attached with the foil wheel, an actuator arrangement and a controller;
- the controller comprising one or more processors and one or more memories including computer program code;
- the one or more memories and the computer program code configured to, with the one or more processors, cause at least the controller to:
- decompose a scaled wake field into a sum of an undisturbed contribution and an extra contribution induced by at least one foil,
- set the induced scaled contribution caused by every foil constant,
- determine an angularly variable wake field (W(θ)) at least approximately based on the induced scaled contribution that is locally constant,
- form data on a pitch angle (γ(θ)) of the at least one foil based on an angle (θ) of a rotation of the foil wheel and the angularly variable wake field (W(θ)) affecting the at least one foil, and
- communicate the data on the pitch angle (γ(θ)) to the actuator arrangement, which is configured to set the at least one foil at the pitch angle (γ(θ)) based on the data.
5 more elements
A marine vehicle comprising a propulsion system having:
- a foil wheel, at least one foil, which is individually controllable and in a rotatable manner attached with the foil wheel, an actuator arrangement and a controller;
- the controller including one or more processors and one or more memories including computer program code;
- the one or more memories and the computer program code configured to, with the one or more processors, cause at least the controller to:
- decompose a scaled wake field into a sum of an undisturbed contribution and an extra contribution induced by at least one foil,
- set the induced scaled contribution caused by every foil constant;
- determine an angularly variable wake field (W(θ)) at least approximately based on the induced scaled contribution that is locally constant,
- form data on a pitch angle (γ(θ)) of the at least one foil based on an angle (θ) of a rotation of the foil wheel and the angularly variable wake field (W(θ)) affecting the at least one foil, and
- communicate the data on the pitch angle (γ(θ)) to the actuator arrangement, which is configured to set the at least one foil at the pitch angle (γ(θ)) based on the data.
5 more elements
A method of controlling a propulsion system of a marine vehicle having a foil wheel and at least one foil, comprising:
- decomposing a scaled wake field, which affects the at least one foil and an angle (θ) of a rotation of the foil wheel, into a model based on a sum of an undisturbed contribution and an extra contribution induced by at least one foil;
- truncating functions of the induced scaled contributions caused by every foil;
- determining an angularly variable wake field (W(θ)) at least approximately based on the contributions of the truncated functions;
- forming, by a controller, data on a pitch angle (γ(θ)) of the at least one foil, which is a blade and is individually controllable and in a rotatable manner attached with the foil wheel, based on the angularly variable wake field (W(θ));
- and
- setting, by an actuator arrangement receiving the data from the controller, the at least one foil at the pitch angle (γ(θ)) based on the data.
3 more elements
A propulsion system of a marine vehicle, the propulsion system comprising:
- a foil wheel, at least one foil, which is individually controllable and in a rotatable manner attached with the foil wheel, an actuator arrangement and a controller;
- the controller comprising one or more processors and one or more memories including computer program code;
- the one or more memories and the computer program code configured to, with the one or more processors, cause at least the controller to:
- decompose a scaled wake field, which affects the at least one foil and an angle (θ) of a rotation of the foil wheel, into a model based on a sum of an undisturbed contribution and an extra contribution induced by at least one foil,
- truncate functions of the induced scaled contributions caused by every foil,
- determine an angularly variable wake field (W(θ)) at least approximately based on the contributions of the truncated functions,
- form, by a controller, data on a pitch angle (γ(θ)) of the at least one foil, which is a blade and is individually controllable and in a rotatable manner attached with the foil wheel, based on the angularly variable wake field (W(θ)), and
- communicate the data on the pitch angle (γ(θ)) to the actuator arrangement, which is configured to set the at least one foil at the pitch angle (γ(θ)) based on the data.
5 more elements
Dependencies are inferred from the claim text.