Hybrid propulsion system for a pleasure boat

Abstract

A hybrid propulsion system for a pleasure boat provided with a control system of the hybrid propulsion system and of the position of the boat, the hybrid propulsion system further comprising an internal combustion engine and an electric motor/generator operating in an integrated manner and according to two operating modes managed by the control system, 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, and —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 at the bow of the boat and at least one gyroscopic sensor and/or one triaxial accelerometer at the stern of the 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 recreational craft,
 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:
 the internal combustion engine ( 50 ) is configured to operate in a first operating mode at cruising speed, and 
 the electric motor/generator ( 30 ) is configured to operate in a second operating mode at a lower speed than a 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   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 the value of a variable to be regulated, 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 at least one 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 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 the 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 . (canceled) 
     
     
         5 . 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. 
     
     
         6 . 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. 
     
     
         7 . 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. 
     
     
         8 . (canceled) 
     
     
         9 . (canceled) 
     
     
         10 . 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. 
     
     
         11 . The hybrid propulsion system ( 100 ) further comprising at least one wind angle sensor. 
     
     
         12 . The hybrid propulsion system ( 100 ) according to  claim 1 , wherein the hybrid propulsion system ( 100 ) is installed in an outboard position. 
     
     
         13 . A pleasure boat ( 10 ) provided with at least a hybrid propulsion system ( 100 ) as described by  claim 1 .