EP2471708A1 - Procédé et système électronique pour contrôler la mode de propulsion d'un bateau - Google Patents

Procédé et système électronique pour contrôler la mode de propulsion d'un bateau Download PDF

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Publication number
EP2471708A1
EP2471708A1 EP11195719A EP11195719A EP2471708A1 EP 2471708 A1 EP2471708 A1 EP 2471708A1 EP 11195719 A EP11195719 A EP 11195719A EP 11195719 A EP11195719 A EP 11195719A EP 2471708 A1 EP2471708 A1 EP 2471708A1
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EP
European Patent Office
Prior art keywords
boat
controlling
controlled motor
power controlled
speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11195719A
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German (de)
English (en)
Other versions
EP2471708B1 (fr
Inventor
Marcello Segato
Ivo Emanuele Francesco Boniolo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seagate SRL
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Seagate SRL
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Publication date
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Publication of EP2471708A1 publication Critical patent/EP2471708A1/fr
Application granted granted Critical
Publication of EP2471708B1 publication Critical patent/EP2471708B1/fr
Not-in-force legal-status Critical Current
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units

Definitions

  • the present invention relates to a method and an electronic system for controlling the propulsion modes of a boat.
  • boats are known that are provided with an electric motor and with a thermal motor configured according to a so-called hybrid thermal-electric layout, which may be of the type in series or of the type in parallel or of the mixed type, according to the connection mode between the two motors.
  • the switch from one propulsion mode to the other is automatically regulated on the basis of the cruising speed in order to maximize the energy efficiency.
  • sensors for detecting the wind speed and direction are advantageously provided on the boats currently known. In this way, on the basis on such detection, the sailor estimates the favourable time for hoisting and/or lowering said group of sails.
  • Inexact forecasts and/or estimates can cause considerable delays or in any case a non optimized propulsion from the energy point of view.
  • the object of the present invention is to obviate the drawbacks mentioned above and in particular that of devising a method for controlling the propulsion modes of a boat capable of managing the use of sail propulsion on a boat provided with a motor.
  • Another object of the present invention is to devise a method for controlling the propulsion modes of a boat that allows integrating the contribution to the propulsion provided by a group of sails and that provided by a motor.
  • a further object of the present invention is to provide an electronic system for controlling the propulsion modes of a boat that allows optimizing the energy consumption of the motor.
  • an electronic system for controlling the propulsion modes of a boat according to the present invention is shown, globally indicated with reference numeral 10.
  • Such electronic system 10 is advantageously coupled with a boat 20 of the type comprising a power controlled motor 21, a group of sails 22, a mobile centreboard 24 and a first plurality of sensors 23 of the wind and motion conditions of the same boat 20.
  • the power controlled motor 21 can be an electric motor or a thermal motor, as well as a hybrid thermal-electric motor, comprising both an electric motor and a thermal motor.
  • the first plurality of sensors 23 of the wind conditions and of the motion conditions of the boat preferably comprises anemometric sensors capable of detecting the direction or the incidence angle AWA and the apparent speed of the wind AWS, as well as speed sensors capable of detecting the navigation speed BS of boat 20.
  • the electronic system 10 for controlling the propulsion modes of a boat comprises a central processing and controlling unit 11 connected to the first plurality of sensors 23 of the wind conditions and of the motion conditions of the boat.
  • Such central processing and control unit 11 therefore is capable of receiving and processing the data detected by the first plurality of sensors 23 in order to calculate the actual speed TWS and the actual direction TWA of the wind.
  • connection between the central processing and control unit 11 and the first plurality of sensors 23 is wired but it may also be obtained by air through two two-way radio means by air (not shown), coupled the one with the central processing and control unit 11 and the other with the first plurality of sensors 23.
  • the electronic system 10 for controlling the propulsion modes of a boat further comprises means for generating a signal 13 connected to the central processing and control unit 11.
  • the means for generating a signal 13 are capable of producing an output signal for warning a user in order to indicate the instant when it is advantageous to hoist or lower the group of sails 22 on the basis of the data regarding speed TWS and real direction TWA of the wind.
  • boat 20 also comprises means (not shown) for controlling the group of sails 22 capable of hoisting or lowering the same sails 22, the means for generating a signal 13 are capable of producing in output an actuating signal for the above control means for hoisting or lowering the group of sails 22.
  • the electronic system 10 for controlling the propulsion modes of a boat also comprises interface means for a user 14 advantageously coupled with the central processing and control unit 11.
  • the interface means for a user 14 allow the user to select, on the basis on his/her navigation needs, at least one driving mode of boat 20 from a plurality of driving modes of boat 20 memorized in memorization means 30 comprised within the electronic system 10 and connected to the processing and control unit 11.
  • the plurality of driving modes of boat 20 comprises at least one driving mode at a guaranteed minimum navigation speed VMNG, one driving mode at a guaranteed minimum navigation time TMN and one driving mode at a guaranteed minimum travel distance DMN.
  • the user sets the value of the guaranteed minimum speed VMNG through the interface means for a user 14.
  • Such driving mode allows keeping the navigation speed of boat 20 at a value greater than or equal to the guaranteed minimum speed VMNG set.
  • the user sets the value of a minimum speed VMN' and of a guaranteed minimum time TMN through the interface means for a user 14. Such driving mode ensures that the navigation of boat 20 continues by the guaranteed minimum time TMN set.
  • the user sets the value of a minimum speed VMN' and of a guaranteed minimum distance DMN through the interface means for a user 14. Such driving mode ensures that boat 20 travels the guaranteed minimum distance DMN set.
  • the plurality of driving modes of boat 20 also comprises a driving mode with a minimum speed of electric power generation (VMG), which indicates the speed of boat 20 above which the generator functionality of the electric motor is actuated.
  • VMG minimum speed of electric power generation
  • the driving mode at minimum speed of electric power generation VMG may only be selected if the driving mode at guaranteed minimum speed VMNG has been selected in advance. In that case, in fact, the user sets the value of the minimum speed of generation VMG that is greater than the value of the guaranteed minimum speed VMNG; in this way, the generator functionality of the electric motor is only actuated when the propulsion due to the wind is sufficient for exceeding both the guaranteed minimum speed VMNG and the minimum speed of electric power generation VMG.
  • the driving mode at minimum speed of electric power generation VMG therefore, allows recovering electric energy if the propulsive force of the wind is sufficient for moving boat 20 according to the driving mode at guaranteed minimum speed VMNG.
  • the plurality of driving modes of boat 20 further comprises a driving mode at an optimized energy efficiency ⁇ HYB of the power controlled motor 21.
  • a driving mode at an optimized energy efficiency ⁇ HYB can be selected individually or in addition to at least one driving mode of boat 20 selected before.
  • the driving mode at an optimized energy efficiency ⁇ HYB allows optimizing the energy consumption of the power controlled motor 21.
  • the electronic system 10 comprises means 12 for controlling the power controlled motor 21 on the basis of the selected driving mode of the boat and on the typical parameters of the wind conditions and of the motion conditions of the boat detected by the first plurality of sensors 23; such means 12 for controlling the power controlled motor 21 are connected to the central processing and control unit 11.
  • the means 12 for controlling motor 21 are capable of generating a power request signal PP for the power controlled motor 21 on the basis of the typical parameters of the wind conditions and of the motion conditions of boat 20 detected by the first plurality of sensors 23 and of the value of the minimum navigation speed VMN', VMNG set by the user.
  • such means 12 for controlling the power controlled motor 21 comprise regulators PID or linear optimal regulators or non linear regulators.
  • the electronic system 10 also comprises means for energy optimization 16 connected to the central processing and control unit 11 and coupled with the power controlled motor 21.
  • the means 12 for controlling motor 21 and the means for energy optimization 16 are capable of communicating with each other by interposition of the central processing and control unit 11 or through a dedicated connection.
  • the means for energy optimization 16 are capable of operating on the power controlled motor 21 along with the means 12 for controlling the same motor 21, in order to ensure the respect of the driving modes at guaranteed minimum navigation time TMN, at guaranteed minimum travel distance DMN and at optimized energy efficiency of the power controlled motor 21.
  • such means for energy optimization 16 generate a regulated power request signal PPR on the basis of the typical parameters of the wind conditions and of the motion conditions of the boat detected by the first plurality of sensors 23, of the selected driving mode of boat 20 and of the energy capacity CBAT, CFUEL of the power controlled motor 21.
  • energy capacity CBAT, CFUEL refers to the charge state CBAT of a battery of an electric motor and/or to the energy capacity of a fuel tank CFUEL of a thermal motor, according to the nature of the power controlled motor 21.
  • the detection of the energy capacity CBAT, CFUEL of the power controlled motor 21 is carried out by the electronic system 10 for controlling the propulsion modes of a boat through a second plurality of sensors 19 connected to the central processing and control unit 11.
  • the electronic system 10 advantageously comprises a selector block 15 connected to the central processing and control unit 11 and to the power controlled motor 21.
  • the electronic system 10 for controlling the propulsion modes of a boat is advantageously applied to a boat 20 provided with a motor 21 that comprises an electric motor provided with the electric power generator functionality.
  • a motor 21 that comprises an electric motor provided with the electric power generator functionality.
  • Such power controlled motor 21 therefore is an electric motor or a hybrid thermal-electric motor wherein an electric motor is present, provided with a charge generator, preferably hydro-dynamic.
  • the selector block 15 is capable of selectively actuating the propulsion or the generation function of the electric motor comprised within the power controlled motor 21, if the selected driving mode is the driving mode at minimum speed of generation VMG.
  • the electronic system 10 for controlling the propulsion modes of a boat also comprises means for regulating the sails 17 and/or control means of the centreboard 18 respectively coupled with the group of sails 22 and with the mobile centreboard 24 of boat 20, as well as both with the central processing and control unit 11.
  • the electronic system 10 is capable of optimising the propulsive effect of the group of sails 22, modifying the configuration of the same, and the position of centreboard 24, on the basis of the detected wind conditions.
  • Method 100 for controlling the propulsion modes of a boat comprises a first measurement step that consists in detecting 101 a plurality of typical wind parameters through the first plurality of sensors 23.
  • the processing and control unit 11 receives the data relating to the detection of speed AWS and the incidence angle AWA of the apparent wind and of speed BS of boat 20 and it calculates the actual speed TWS and the actual direction TWA of the wind.
  • an observation step is provided wherein the processing and control unit 11 verifies 102 whether the plurality of parameters typical of the wind conditions so detected satisfies a predetermined set of extreme conditions for hoisting or lowering the group of sails 22.
  • a step is provided consisting in generating 103 a signal for warning the user and/or for actuating the control means of the group of sails 22, if provided, for hoisting or lowering the group of sails 22.
  • method 100 for controlling the propulsion modes of a boat comprises a step that consists in selecting 104 at least one driving mode of boat 20 from a plurality of driving modes of boat 20.
  • the method for controlling the propulsion modes of a boat comprises a step consisting in controlling 110 the power controlled motor 21 on the basis of the selected driving mode of the boat and of the typical parameters of the wind conditions and of the motion conditions of the boat detected by the first plurality of sensors 23.
  • method 100 for controlling the propulsion modes of a boat comprises the steps (not shown) that consist in setting the value of the guaranteed minimum speed VMNG, detecting the navigation speed BS of boat 20 through the first plurality of sensors.
  • method 100 comprises a step wherein the central processing and control unit 11 compares 111 the navigation speed BS of boat 20 and the guaranteed minimum speed VMNG. If the navigation speed BS of boat 20 is lower than the guaranteed minimum speed VMNG, the control step 110 of the power controlled motor 21 comprises generating 112 a power request signal PP for the power controlled motor 21 on the basis of the current value of the parameters typical of the wind conditions.
  • Such power request signal PP stimulates motor 21 to supply the power required for reaching the guaranteed minimum navigation speed VMNG.
  • control step 110 of the power controlled motor 21 comprises minimizing 113 the energy consumption of the power controlled motor 21 through the energy optimization means 16.
  • the minimization step 113 of the energy consumption consists in turning off said electric motor.
  • the minimization step 113 of the energy consumption consists in ensuring a minimum rotation speed of shaft WPMN of the thermal motor.
  • the minimum rotation speed WPMN of the thermal motor also implies that in the conditions wherein the sail propulsion generates enough power, the navigation speed BS of boat 20 shall be greater than the guaranteed minimum speed VMNG due to the concurrent sail and thermal propulsion.
  • method 100 for controlling the propulsion modes of a boat further comprises the steps (not shown) consisting in setting the value of the minimum speed of generation VMG and in comparing such speed VMG with the navigation speed BS of boat 20.
  • control step 110 of the power controlled motor 21 comprises actuating (not shown) the generator functionality of the electric motor through the selector block 15.
  • the selector block 15 turns off the electric machine.
  • method 100 for controlling the propulsion modes of a boat comprises the steps (not shown) consisting in setting the value of the guaranteed minimum navigation time VMNG and the value of a minimum navigation speed VMN'.
  • the energy capacity CBAT, CFUEL (not shown) of the power controlled motor 21 through the second plurality of sensors 19 is determined, and the coherence of the values of minimum speed VMN' and of guaranteed minimum time TMN set is checked 131 with respect to such energy capacity CBAT, CFUEL detected.
  • the coherence checking step 131 provides for verifying the following disequation: ⁇ 0 TMIN ⁇ TP * ⁇ WP d t CBAT ⁇ CFUEL wherein TP and WP are generated by the control means 12 of the power controlled motor 21 on the basis of the detected typical parameters of the wind and of the motion conditions of boat 20 and of the value of the minimum navigation speed VMN' set.
  • control step 110 of the power controlled motor 21 comprises generating 133 a power request signal regulated PPR on the basis of the plurality of parameters typical of the wind conditions, of the value of the guaranteed minimum navigation time TMN and of the energy capacity CBAT, CFUEL of motor 21.
  • such regulated power request signal PPR is generated by the energy optimization means 16.
  • the control step 110 of the power controlled motor 21 comprises reducing 132 the value of the minimum navigation speed VMN' until the coherence checking step has a positive result.
  • method 100 for controlling the propulsion modes of a boat comprises the steps (not shown) consisting in setting the value of the guaranteed minimum travelled distance DMN and the value of a minimum navigation speed VMN'.
  • the control step 110 of the power controlled motor 21 comprises generating 133 (not shown) a regulated power request signal PPR on the basis of the plurality of parameters typical of the wind conditions, of the value of the guaranteed minimum distance DMN and of the energy capacity CBAT, CFUEL of motor 21.
  • power request signal regulated PPR is generated by the energy optimization means 16.
  • the control step 110 of the power controlled motor 21 comprises reducing 132 (not shown) the value of the minimum navigation speed VMN' until the coherence checking step has a positive result.
  • method 100 for controlling the propulsion of a boat additionally comprises an optimization step (not shown ) wherein the energy optimization means 16 maximize efficiency ⁇ HYB of the hybrid thermal-electric motor in light of the typical parameters of the wind conditions and of the motion conditions of the boat detected by the first plurality of sensors 23 and by the energy capacity CBAT, CFUEL of the motor.
  • the method for controlling the propulsion modes of a boat according to the present invention allows knowing, in a deterministic manner, the moment when the propulsive force of the wind can be used in an advantageous manner in order to reduce the motor energy consumptions.
  • the propulsion control and the energy optimization made on the basis of the selected driving modes of the boat, of the typical parameters of the wind detected, as well as the energy capacity of the boat motor allows integrating the propulsive force deriving from the wind with that of the motor, leading to significant savings in consumptions, as well as a very quiet navigation.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Braking Systems And Boosters (AREA)
EP11195719.7A 2010-12-28 2011-12-23 Procédé et système électronique pour contrôler la mode de propulsion d'un bateau Not-in-force EP2471708B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A002430A IT1403294B1 (it) 2010-12-28 2010-12-28 Metodo e sistema elettronico per il controllo delle modalità di propulsione di un'imbarcazione

Publications (2)

Publication Number Publication Date
EP2471708A1 true EP2471708A1 (fr) 2012-07-04
EP2471708B1 EP2471708B1 (fr) 2013-07-31

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Application Number Title Priority Date Filing Date
EP11195719.7A Not-in-force EP2471708B1 (fr) 2010-12-28 2011-12-23 Procédé et système électronique pour contrôler la mode de propulsion d'un bateau

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US (1) US20120164895A1 (fr)
EP (1) EP2471708B1 (fr)
IT (1) IT1403294B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115009495B (zh) * 2022-06-02 2024-02-27 大连海事大学 面向船舶能效提升的多功能风帆智能优化控制系统与方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040999A1 (fr) * 1996-04-29 1997-11-06 Solomon Technologies Procede et equipement pour propulser un navire
EP2090507A2 (fr) * 2008-02-15 2009-08-19 Glacier Bay, Inc. Système de propulsion
CA2643878A1 (fr) * 2008-11-14 2010-05-14 Pierre Caouette Methode electronique de commande de propulsion et de regeneration pour embarcations electriques, hybrides et diesel- electriques

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273015B1 (en) * 1998-02-26 2001-08-14 Maruta Electric Boatworks Llc Stabilized electric watercraft for high speed cruising, diving and sailing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040999A1 (fr) * 1996-04-29 1997-11-06 Solomon Technologies Procede et equipement pour propulser un navire
EP2090507A2 (fr) * 2008-02-15 2009-08-19 Glacier Bay, Inc. Système de propulsion
CA2643878A1 (fr) * 2008-11-14 2010-05-14 Pierre Caouette Methode electronique de commande de propulsion et de regeneration pour embarcations electriques, hybrides et diesel- electriques

Also Published As

Publication number Publication date
US20120164895A1 (en) 2012-06-28
EP2471708B1 (fr) 2013-07-31
ITMI20102430A1 (it) 2012-06-29
IT1403294B1 (it) 2013-10-17

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