Method and system for controlling trim position of a propulsion device on a marine vessel
First Claim
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1. A method of controlling trim position of a propulsion device on a marine vessel, the method comprising:
- receiving a current trim position of the propulsion device;
detecting at least one of a threshold increase in engine speed of the propulsion device and a threshold drop in engine load on the propulsion device indicating reduced resistance on a propeller of the propulsion device;
upon detecting the threshold increase in engine speed or the threshold drop in engine load, determining a reduced trim position based on the current trim position; and
operating a trim actuator to move the propulsion device to the reduced trim position.
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Abstract
A method of controlling trim position of a propulsion device includes receiving a current engine speed and a current trim position of the propulsion device, and then detecting at least a threshold increase in engine speed of the propulsion device or at least a threshold drop in engine load on the propulsion device. A reduced trim position is then determined based on the current trim position, and a trim actuator is operated to move the propulsion device to the reduced trim position.
152 Citations
20 Claims
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1. A method of controlling trim position of a propulsion device on a marine vessel, the method comprising:
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receiving a current trim position of the propulsion device; detecting at least one of a threshold increase in engine speed of the propulsion device and a threshold drop in engine load on the propulsion device indicating reduced resistance on a propeller of the propulsion device; upon detecting the threshold increase in engine speed or the threshold drop in engine load, determining a reduced trim position based on the current trim position; and operating a trim actuator to move the propulsion device to the reduced trim position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for controlling trim position of a propulsion device on a marine vessel, the system comprising:
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a trim actuator configured to adjust a trim position of the propulsion device; a controller configured to; receive a current trim position of the trim actuator; detect at least one of a threshold increase in engine speed of the propulsion device and a threshold drop in engine load on the propulsion device indicating reduced resistance on a propeller of the propulsion device; upon detecting the threshold increase in engine speed or the threshold drop in engine load, determine a reduced trim position based on the current trim position; and operate the trim actuator to move the propulsion device to the reduced trim position. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification