Electronically assisted reverse gate system for a jet propulsion watercraft
AssigneeKongsberg Inc.
InventorsLuc St-Pierre, Pierre Gaudet, Christian Laing, Francois Berube
Life of this patent
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Abstract
An automatic trim system for a jet propulsion watercraft is provided. Control electronics are in communication with a steering angle sensor to monitor the steering angle of the watercraft, and evaluate a target setting for the trim taking the steering angle into consideration. Control signals are sent to an appropriate actuating device for adjusting the trim angle accordingly.
Claims25
An electronically assisted reverse gate system for a jet propulsion watercraft, the watercraft including a reverse gate pivotable in and out of a path of a water stream from said watercraft, said reverse gate thereby having a variable gate orientation, the watercraft further including an operator interface for obtaining commands from an operator of the watercraft, said reverse gate system comprising:
- control electronics in communication with the operator interface for receiving said commands therefrom, said control electronics evaluating target settings for the gate orientation in response to said commands with the target settings being evaluated based on at least one operating condition of said watercraft in addition to said commands, the at least one operating condition comprises at least one of:
- an engine rotational speed received from an engine of the watercraft;
- a steering angle of the watercraft, as measured by a steering angle sensor;
- a forward or aft attitude of the watercraft as measured by a tilt sensor;
- and
- a speed over water or speed over ground of the watercraft as measured by a speed sensor;
- the control electronics issuing control signals based on said target settings;
- and
- an actuating device operable to adjust the gate orientation in response to said control signals.
A jet propulsion watercraft, comprising:
- a reverse gate pivotable in and out of a path of a water stream from said watercraft, said reverse gate thereby having a variable gate orientation;
- an operator interface for obtaining commands from an operator of the watercraft;
- control electronics in communication with the operator interface for receiving said commands therefrom, said control electronics evaluating target settings for the gate orientation in response to said commands with the target settings being evaluated based on at least one operating condition of said watercraft in addition to said commands, the at least one operating condition comprises at least one of:
- an engine rotational speed received from an engine of the watercraft;
- a steering angle of the watercraft as measured by a steering angle sensor;
- a forward or aft attitude of the watercraft as measured by a tilt sensor;
- and
- a speed over water or speed over ground of the watercraft as measured by a speed sensor;
- the control electronics issuing control signals based on said target settings;
- and
- an actuating device operable to adjust the gate orientation in response to said control signals.
Dependencies are inferred from the claim text.