Hybrid propulsion system for a pleasure boat

1 . A hybrid propulsion system ( 100 ) for a pleasure boat ( 10 ) provided with a control system ( 40 ) of the hybrid propulsion system ( 100 ) and of the position of the pleasure boat;

the hybrid propulsion system ( 100 ) further comprising:

an internal combustion engine ( 50 ) and

an electric motor/generator ( 30 , 31 , 32 ) operating in an integrated manner and according to two operating modes managed by the control system ( 40 );

wherein said internal combustion engine ( 50 ) is configured to operate in a first operating mode at a cruising speed, and

wherein the electric motor/generator ( 30 ) is configured to operate in a second operating mode at a lower speed than said cruising speed,

in which:

the control system is configured to control the position of the boat by means of signals from a plurality of gyroscopic sensors and/or triaxial accelerometers ( 20 , 21 );

and wherein the plurality of gyroscopic sensors and/or triaxial accelerometers is located such that there is at least one gyroscopic sensor and/or one triaxial accelerometer ( 20 ) at the bow of the boat ( 10 ) and at least one gyroscopic sensor and/or one triaxial accelerometer ( 21 ) at the stern of the boat ( 10 ), the hybrid propulsion system ( 100 ) being characterized by the fact that the control system ( 40 ) comprises:

at least one logic block ( 41 , 42 ) and at least one feedback block ( 43 , 44 ), the at least one logic block ( 41 , 42 ) being configured to compare set-point signals (W 1 , W 2 ) with feedback signals from the at least one feedback block ( 43 , 44 ),

at least one regulator ( 45 , 46 ) configured to determine the value of a regulating variable (Uy 1 , Uy 2 ) on the basis of a comparison between the set-point signals (W 1 , W 2 ) and the feedback signals, and

a control unit ( 47 ) configured to transform the values of the regulating variable (Uy 1 , Uy 2 ) into input values (Yx 1 , Yx 2 and Yz 1 , Yz 2 ) for the electric motor/generator ( 30 , 31 , 32 ):

and wherein

the set-point signals (W 1 , W 2 ) are static or dynamic angular values;

the feedback signals are angular values from at least two of said plurality of gyroscopic sensors and/or triaxial accelerometers ( 20 , 21 );

the regulating variable (Uy 1 , Uy 2 ) is a driving torque, and

the input values (Yx 1 , Yx 2 and Yz 1 , Yz 2 ) are a propulsive thrust according to two directions defined by x and z components of a displacement vector.

2 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein the control system ( 40 ) is configured to control the position of the boat ( 10 ) emulating an anchoring operation.

3 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein the control system ( 40 ) is configured to control the position of the boat ( 10 ) performing a trolling operation.

4 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein, the electric motor/generator ( 30 ) is unique and the input values also include a pivot angle.

5 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein the control system ( 40 ) is configured to control the position of the boat ( 10 ) performing a mooring operation in a port or roadstead.

6 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein the set-point signals (W 1 , W 2 ) are dynamic and angular values, and are

calculated from a mooring model ( 48 ) having as input the direction of the wind.

7 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein the plurality of gyroscopic sensors and/or triaxial accelerometers ( 20 , 21 ) is configured to operate in a wi-fi operating mode.

8 . The hybrid propulsion system ( 100 ) according to claim 1 , further comprising at least one wind angle sensor.

9 . The hybrid propulsion system ( 100 ) according to claim 1 , wherein the hybrid propulsion system ( 100 ) is installed in an outboard position.