EP2865871B1 - Electric power generating set, and related control device - Google Patents

Electric power generating set, and related control device Download PDF

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Publication number
EP2865871B1
EP2865871B1 EP14189639.9A EP14189639A EP2865871B1 EP 2865871 B1 EP2865871 B1 EP 2865871B1 EP 14189639 A EP14189639 A EP 14189639A EP 2865871 B1 EP2865871 B1 EP 2865871B1
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EP
European Patent Office
Prior art keywords
electric pole
controller
solenoid valve
storage unit
engine
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.)
Active
Application number
EP14189639.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2865871A1 (en
Inventor
Raul Fabbri
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.)
Telair Srl
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Telair Srl
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Publication date
Application filed by Telair Srl filed Critical Telair Srl
Publication of EP2865871A1 publication Critical patent/EP2865871A1/en
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Publication of EP2865871B1 publication Critical patent/EP2865871B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine

Definitions

  • the present invention relates to an electric power generating set, and related control device.
  • means of transport such as camper vans, caravans, motor homes and the like are provided with electric power generating sets, i.e. with apparatuses that can, for example, recharge electrical energy storage units, for the purpose of ensuring the correct operation of the numerous utilities (lighting, heating, television, refrigerator etc.) with which such vehicles are provided.
  • electric power generating sets i.e. with apparatuses that can, for example, recharge electrical energy storage units, for the purpose of ensuring the correct operation of the numerous utilities (lighting, heating, television, refrigerator etc.) with which such vehicles are provided.
  • such sets involve the use of an (internal combustion) engine and an electricity generator (a dynamo or an alternator), which is arranged downstream of the engine, in order to convert the mechanical energy provided by the latter to the electric power desired.
  • an electricity generator a dynamo or an alternator
  • control of the engine and of the generator is entrusted to a controller, which is responsible, among other functions, for regulating the flow of fuel to the engine, according to specific requirements.
  • the controller is responsible for detecting the malfunction and cutting off the supply of fuel, which can no longer be burned by the engine; occasionally however, as a consequence of such malfunction or due to an independent event, the controller also has a malfunction (a second malfunction), which is such as to inhibit its ability to detect the unwanted arrest of the engine.
  • the controller will not cut off the supply of fuel, which, being no longer burned by the engine, can accumulate within it and in the ducts, until it spills over, with evident risks for the integrity of the set proper and, especially, the safety of the occupants.
  • the aim of the present invention is to solve the above mentioned problems, by providing an electric power generating set that can be controlled in an optimal manner, even in the presence of malfunctions.
  • an object of the invention is to provide a device that ensures the optimal control of an electric power generating set, even in the presence of malfunctions.
  • a further object of the invention is to provide an electric power generating set that is capable of guarding against the danger of egress of fuel, in the event of malfunctions.
  • a further object of the invention is to provide an electric power generating set that ensures a high reliability of operation.
  • Another object of the invention is to provide an electric power generating set that can be easily implemented using elements and materials that are readily available on the market.
  • Another object of the invention is to provide an electric power generating set that is low cost and safely applied.
  • an electric power generating set provided with at least one combustible fluid supply duct, which leads to at least one engine for delivering mechanical energy, and a current generator, which is coupled to said engine and is capable of converting the mechanical energy delivered by said engine into electric power, to be supplied to at least one respective storage unit, at least one solenoid valve being arranged along said duct and being controlled by a respective controller that can be connected in parallel to said generator and to the storage unit, said solenoid valve being usually arranged in a first configuration, for blocking said duct, in order to prevent the supply of said engine, and being movable on command toward a second configuration, for the free passage of the combustible fluid, and vice versa, characterized in that it comprises a component for one-way clearance to the flow of current, which is arranged along an electrical line for connection between an electric pole of said solenoid valve and a corresponding common electric pole of said controller and of the storage unit, for one-way clearance to the flow of current from said positive electric pole of
  • a control device for electric power generating sets comprising at least one controller for electric power generating sets, which are provided with at least one combustible fluid supply duct which leads to at least one engine for delivering mechanical energy, and with a current generator, which is coupled to the engine and is capable of converting the mechanical energy delivered by the engine into electric power, to be supplied to at least one respective storage unit, which can be connected in parallel to said controller and to the generator, said controller controlling at least one solenoid valve, which can be arranged along said duct and is usually arranged in a first configuration, for blocking the duct, in order to prevent the supply of the engine and can move on command toward a second configuration, for the free passage of the combustible fluid and vice versa, characterized in that it comprises a component for one-way clearance to the flow of current, which is arranged along an electrical line for connection between an electric pole of said solenoid valve and a corresponding common electric pole of said controller and of the storage unit, for one-way clearance to the
  • the reference numeral 1 generally designates an electric power generating set, which is provided, according to substantially conventional methods, with at least one combustible fluid supply duct, which leads to at least one engine 2, which is capable of dispensing mechanical energy, and of a current generator 3, which is coupled to the engine 2 and capable of converting the mechanical energy delivered by the engine 2 into electric power.
  • the generator 3 can supply electricity to at least one respective storage unit 4.
  • the electric power generating set 1 can thus be applied, preferably but not exclusively, to means of transport such as camper vans, caravans, motor homes and the like, for example for recharging the electricity storage units 4, with which such vehicles are equipped, for the purpose of ensuring the correct operation of the numerous utilities (lighting, heating, television, refrigerator etc.) with which they are provided.
  • the above mentioned storage unit 4 can also be constituted by the starter battery that is associated with the power plant of the means of transport, just as the possibility is not excluded of providing sets 1 which come under the scope of protection claimed herein, and are intended to charge two or more storage units 4, and possibly also other types of user loads.
  • At least one solenoid valve 5 is arranged along the duct, and is controlled by a respective controller 6, which in turn can be connected in parallel to the generator 3 and to the storage unit 4.
  • the solenoid valve 5 (which can also be chosen to be conventional) is usually arranged in a first configuration, for blocking the duct, so as to prevent the supply of the engine 2, by obstructing the passage of combustible fluid along the duct. Furthermore, the solenoid valve 5 can move on command toward a second configuration, for the free passage of the combustible fluid (in order to allow the supply of the engine 2 and the delivery of electric power by the generator 3 and by the set 1), and vice versa.
  • the controller 6 is independently capable of commanding the solenoid valve 5, and thus of bringing it from the first to the second configuration, or vice versa, according to specific requirements, in order to deny or allow the supply of the engine 2 with the combustible fluid.
  • the electric power generating set 1 comprises a component 7 for one-way clearance to the flow of current, which is arranged along an electrical line 8a, 8b for connection between an electric pole 9a, 9b of the solenoid valve 5 and a corresponding common electric pole 10a, 10b of the controller 6 and of the storage unit 4.
  • the component 7 can provide one-way clearance to the flow of current from the positive electric pole 9a of the solenoid valve 5 to the positive common electric pole 10a of the controller 6 and of the storage unit 4, or it can provide one-way clearance to the flow of current from the negative common electric pole 10b of the controller 6 and of the storage unit 4 to the negative electric pole 9b of the solenoid valve 5.
  • the component 7 is arranged along a first electrical line 8a for connection between the positive electric pole 9a of the solenoid valve 5 and the positive common electric pole 10a of the controller 6 and of the storage unit 4.
  • the component 7 ensures one-way clearance to the flow of current from the positive electric pole 9a of the solenoid valve 5 to the positive common electric pole 10a of the controller 6 and of the storage unit 4, while it prevents the flow in the opposite direction (with the useful effects that will be highlighted in the following pages).
  • the component 7 is arranged along a second electrical line 8b for connection between the negative electric pole 9b of the solenoid valve 5 and the negative common electric pole 10b of the controller 6 and of the storage unit 4.
  • the component 7 ensures one-way clearance to the flow of current from the negative common electric pole 10b of the controller 6 and of the storage unit 4 to the negative electric pole 9b of the solenoid valve 5, thus preventing the flow in the opposite direction (thus being able to count on the previously mentioned positive effects, associated with the first embodiment, as will become better apparent hereinafter).
  • the component 7 can be any, according to specific application requirements, and for example it can be selected from among a diode 11, a thyristor and a MOSFET (also known as a MOS transistor, which contains a diode 11 within it and is provided with a gate that can be used as an additional control terminal).
  • a MOSFET also known as a MOS transistor, which contains a diode 11 within it and is provided with a gate that can be used as an additional control terminal.
  • a thyristor in one of its variants (for example a GTO, or "Gate Turn Off”) it is possible to subject the one-way clearance to the flow of current to a further triggering signal.
  • the component 7 for one-way clearance is a diode 11.
  • the engine 2 can be any, and can be for example any internal combustion engine, running on any desired combustible fluid, according to specific requirements.
  • the engine 2 is however a two-stroke engine running on LPG, which in fact thus constitutes the combustible fluid, and which is supplied to the engine 2 through the supply duct.
  • the generator 3 can be an alternator, but in the preferred application, introduced previously, it is constituted by a dynamo.
  • This solution makes it possible to have direct current directly at the outlet, without requiring the interposition of a rectifier, thus having available, relatively simply, a powerful electric motor device, to be used also for starting the electric power generating set 1, without having to resort to a traditional starting motor, thus obtaining a reduction of space occupation, weight, cost, and a mechanical and electrical simplification.
  • the control device for electric power generating sets thus comprises at least one controller 6 for electric power generating sets 1 that are provided with at least one combustible fluid supply duct, which leads to at least one engine 2, which is capable of delivering mechanical energy.
  • the electric power generating set 1 is furthermore provided with a current generator 3, which is coupled to the engine 2 and is capable of converting the mechanical energy delivered by the engine 2 into electric power, to be supplied to at least one respective storage unit 4, which can be connected in parallel to the controller 6 and to the generator 3.
  • a current generator 3 which is coupled to the engine 2 and is capable of converting the mechanical energy delivered by the engine 2 into electric power, to be supplied to at least one respective storage unit 4, which can be connected in parallel to the controller 6 and to the generator 3.
  • the controller 6 controls at least one solenoid valve 5, which can be arranged along the duct and is usually arranged in a first configuration, for blocking the duct, in order to prevent the supply of the engine 2.
  • the solenoid valve 5 can move on command toward a second configuration, for the free passage of the combustible fluid, and vice versa.
  • the control device comprises a component 7 for one-way clearance to the flow of current, which is arranged along an electrical line 8a, 8b for connection between an electric pole 9a, 9b of the solenoid valve 5 and a corresponding common electric pole 10a, 10b of the controller 6 and of the storage unit 4. More precisely, the component 7 can ensure one-way clearance to the flow of current from the positive electric pole 9a of the solenoid valve 5 to the positive common electric pole 10a of the controller 6 and of the storage unit 4, while preventing the flow of current in the opposite direction.
  • the component 7 can provide one-way clearance to the flow of current from the negative common electric pole 10b of the controller 6 and of the storage unit 4 to the negative electric pole 9b of the solenoid valve 5, while preventing the flow of current in the opposite direction.
  • the component 7 for one-way clearance can be of any type, according to specific requirements, while remaining within the scope of protection claimed herein, and for example it can be chosen from among a diode 11, a thyristor and a MOSFET.
  • the component 7 for one-way clearance is in any case a diode 11.
  • Operation of the electric power generating set (and of the control device) according to the invention is the following.
  • both the controller 6, with the solenoid valve 5 controlled by it, and the storage unit 4, can be powered.
  • the controller 6 can command the transition of the solenoid valve 5 from the first configuration to the second, and vice versa, and thus control the cutoff or supply of the engine 2, in order to deny or allow the delivery of electric power by the generator 3, associated with the engine 2, according to specific requirements.
  • the solenoid valve 5 can be provided with a solenoid that, when current flows through it (following a command imparted by the controller 6), is capable of attracting a baffle that is usually arranged to block the duct, thus causing the transition to the second configuration and allowing the combustible fluid to flow through the duct, to supply the engine 2.
  • the positive electric pole 9a of the solenoid valve 5 (and of the solenoid) can be directly connected to the positive electrical terminal of the generator 3, while the negative electric pole 9b of the solenoid valve 5 (and of the solenoid) is directly connected to the controller 6.
  • the positive electric pole 9a of the solenoid valve 5 (and of the solenoid) can be connected to the controller 6 (obviously suitably modified, with respect to the previous case), while the negative electric pole 9b of the solenoid valve 5 (and of the solenoid) is directly connected to the negative electrical terminal of the generator 3.
  • controller 6 cuts off the flow of current, in order to cause the automatic restoration of the first configuration and thus the interruption of the supply of the engine 2.
  • the solenoid valve 5 automatically cuts off and prevents the flow of fluid along the duct, even if, owing to a further malfunction, the arrest of the engine 2 is not detected by the controller 6, and thus the latter is not capable of sending the corresponding command to the solenoid valve 5.
  • This therefore makes it possible to provide an electric power generating set 1 that can be controlled in an optimal manner, even in the presence of malfunctions (and/or, similarly, it makes it possible to provide a device that is capable of optimally controlling the set 1).
  • the solenoid valve 5 will have no power supply and thus it is brought to (or is maintained in) the first configuration, thus achieving the results mentioned earlier for the previous embodiment.
  • the electric power generating set (and the control device) according to the invention fully achieves the set aim, in that the use of a component for one-way clearance to the flow of current, which is arranged along an electrical line for connection between an electric pole of the solenoid valve and a corresponding common electric pole of the controller and of the storage unit, makes it possible to provide an electric power generating set that can be controlled in an optimal manner, even in the presence of malfunctions.
  • the materials employed, as well as the dimensions, may be any according to requirements and to the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Eletrric Generators (AREA)
EP14189639.9A 2013-10-22 2014-10-21 Electric power generating set, and related control device Active EP2865871B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000582A ITBO20130582A1 (it) 2013-10-22 2013-10-22 Gruppo elettrogeno, e relativo dispositivo di controllo.

Publications (2)

Publication Number Publication Date
EP2865871A1 EP2865871A1 (en) 2015-04-29
EP2865871B1 true EP2865871B1 (en) 2018-05-16

Family

ID=49841700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14189639.9A Active EP2865871B1 (en) 2013-10-22 2014-10-21 Electric power generating set, and related control device

Country Status (3)

Country Link
EP (1) EP2865871B1 (it)
CN (1) CN104578357A (it)
IT (1) ITBO20130582A1 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3393212A1 (en) 2017-04-18 2018-10-24 GRP Iluminacion, S.A. A method for controlling an airport navigation lights system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179920A (en) * 1992-03-12 1993-01-19 Navistar International Transportation Corp. Circuit for automatic shut-down of electronically controlled diesel engine
DE10155919A1 (de) * 2001-11-02 2003-05-22 Viktor Litvak Rettungssystem für ein Fahrzeug beim Aufprall
KR100619704B1 (ko) * 2004-03-04 2006-09-01 현대자동차주식회사 엘피아이 차량의 연료펌프 노이즈 저감장치
CN102508950B (zh) * 2011-10-14 2013-12-11 广东电网公司电力科学研究院 地区调度自动化系统及其与远程监测诊断中心通信的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
CN104578357A (zh) 2015-04-29
ITBO20130582A1 (it) 2015-04-23
EP2865871A1 (en) 2015-04-29

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