Propulsion system
First Claim
1. A system for controlling an electric propulsion motor for driving a propeller of a sailing vessel, the system comprising:
- a user interface for selecting either a sail mode or a normal operation mode;
a controller configured to operate in the sail mode to control the electric propulsion motor to substantially eliminate the drag force being applied by the propeller to the vessel.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for automatically controlling the speed of a battery powered electric propulsion motor driving a shaft connected to a propeller located on a sailing vessel. The system includes a user interface for selecting either a neutral, a regeneration or a forward thrust operating mode. The system also includes a controller configured to receive input from a motor speed sensor and a motor current sensor. The controller adjust the speed of the motor to the correct motor speed. The controller is configured so that in the neutral mode the correct motor speed is the speed required to substantially eliminate thrust on the shaft.
17 Citations
18 Claims
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1. A system for controlling an electric propulsion motor for driving a propeller of a sailing vessel, the system comprising:
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a user interface for selecting either a sail mode or a normal operation mode; a controller configured to operate in the sail mode to control the electric propulsion motor to substantially eliminate the drag force being applied by the propeller to the vessel.
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2. A system for automatically controlling the speed of a battery powered electric propulsion motor driving a shaft connected to a propeller located on a sailing vessel comprising:
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a user interface for selecting an operating mode of the system; a motor speed sensor; a controller configured to receive input from the motor speed sensor and adjusts the speed of the motor to the correct motor speed; and wherein the controller executes an algorithm to determine the correct motor speed based on the selected operating mode. wherein the operating modes include neutral, regeneration and forward thrust modes; wherein the controller is configured so that in the neutral mode the correct motor speed is the speed required to substantially eliminate thrust on the shaft. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for automatically controlling the speed of a battery powered electric propulsion motor located on a sailing vessel comprising:
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a user interface for selecting an operating mode of the system; a motor speed sensor; a controller configured to receive input from the motor speed sensor and adjusts the speed of the motor to the correct motor speed; and wherein the controller executes an algorithm to determine the correct motor speed based on the selected operating mode. - View Dependent Claims (14, 15, 16, 17)
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18. A system for automatically controlling the speed of a battery powered electric propulsion motor driving a shaft connected to a propeller located on a sailing vessel comprising:
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a user interface for selecting transit speed for the vessel; a motor speed sensor and a motor current sensor; a controller configured to receive input from the motor speed sensor and the motor current sensor and adjusts the speed of the motor to the correct motor speed; and wherein the controller executes an algorithm to determine the operating mode necessary to achieve the selected transit speed; wherein the operating modes include regeneration and forward thrust modes; wherein the controller is configured to shift the motor between the regeneration and forward thrust modes as necessary to maintain the selected transit speed.
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Specification