WO2011124800A1 - Compresseur hybride pour circuit de climatisation - Google Patents
Compresseur hybride pour circuit de climatisation Download PDFInfo
- Publication number
- WO2011124800A1 WO2011124800A1 PCT/FR2011/050587 FR2011050587W WO2011124800A1 WO 2011124800 A1 WO2011124800 A1 WO 2011124800A1 FR 2011050587 W FR2011050587 W FR 2011050587W WO 2011124800 A1 WO2011124800 A1 WO 2011124800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- hybrid compressor
- electric motor
- compression chamber
- phases
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3211—Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/06—Mobile combinations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3266—Cooling devices information from a variable is obtained related to the operation of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/327—Cooling devices output of a control signal related to a compressing unit
- B60H2001/3272—Cooling devices output of a control signal related to a compressing unit to control the revolving speed of a compressor
Definitions
- the present invention relates to a hybrid compressor for air conditioning circuit of a motor vehicle with a heat engine.
- the invention finds a particularly advantageous application in the field of the air-conditioning of motor vehicles with a combustion engine equipped with an automatic stop and start system, such as systems capable of implementing the function known as the English term. saxon of "Stop and Start",
- the "Stop and Start” function under certain conditions, automatically causes the engine to stop completely when the vehicle is itself stopped and then to restart the engine automatically, for example, a driver action interpreted as a restart request.
- a typical situation of implementation of the "stop and start” function is that of stopping at a red light.
- the "Stop" mode of the “Stop and Start” function causes the automatic shutdown of the engine, and the vehicle enters the "Start” mode, which allows the engine to restart automatically. without the need to use the initial engine starting means, such as a key contact for example.
- the "Start” mode automatically restarts the engine, in particular by means of a starter-starter, following the detection by the control system at the start of the vehicle of the driving by the driver of the vehicle. clutch pedal, accelerator pedal, or any other action that may be interpreted as the driver's intention to restart the vehicle.
- clutch pedal, accelerator pedal, or any other action that may be interpreted as the driver's intention to restart the vehicle.
- an air conditioning circuit of a heat engine vehicle comprises a refrigerant compressor which is driven by the crank shaft of the engine by means of a belt and a pulley mechanically connected to the axis of the compressor.
- the air conditioning circuit of the vehicle can only work if the engine is running. Therefore, during the stopping phases of the vehicle in the context of the "Stop and Sart" function, the air conditioning does not work. As a result, during these stopping phases the set temperature inside the passenger compartment can not be maintained, resulting in a feeling of discomfort felt by the passengers of the vehicle.
- the refrigerant circulates in the air conditioning circuit through the mechanical compressor driven by the crankshaft of the engine, while the compressor electric is cut. Conversely, during the stop phases of the "Stop and Start” function, the refrigerant fluid is directed towards the electric compressor, which is then driven by the electric motor.
- the electric compressor it achieves the continuity of operation of the air conditioning circuit and i maintenance of the comfort temperature in the passenger compartment when the engine is stopped.
- an object of the invention is to provide a hybrid compressor for air conditioning circuit of a motor vehicle with a heat engine, said hybrid compressor being able to be driven, on the one hand, by said engine, and on the other hand , by an electric motor during phases of interruption of drive by the engine, which would be much more compact, easier to integrate and easier to use when switching from a drive mode, thermal or electrical, to the other.
- said hybrid compressor consists of a variable displacement compression chamber, said displacement being variable in a range of variation having a greater range of displacements in which the compression chamber is driven by the heat engine, and a lower range of displacements in which the compression chamber is driven by the electric motor.
- the hybrid compressor according to the invention has only one compression chamber instead of two for the hybrid compressor of the state of the art described above, so it is much less bulky and therefore easier to integrate.
- the chamber of compression is unique and comprises only a suction port and a coolant outlet.
- said upper and lower ranges of displacements are distinct.
- the displacement of the compression chamber is chosen in the upper range, the driving of the axis of the compressor being provided by the engine.
- the cabin is usually already packaged in terms of comfort, so that the cooling capacity to be supplied by the electric motor to maintain these conditions for a time limited to a few tens of seconds is significantly lower, at least by a factor of 2 to 3, than the power that the engine must provide. If it is then sufficient to reduce the displacement of the compression chamber to a value in the lower range and start the electric motor until the engine is restarted by the function "Stop and Start".
- variable displacement compression chamber is a rotary drive compression chamber.
- said compression chamber is a vane compression chamber with an adjustable suction volume.
- the invention provides that the drive of the compression chamber by the heat engine is disengageable from the engine for displacements included in said lower range of displacements.
- the electric motor is then decoupled from the engine and can drive the compression axis under low power because the compression chamber then operates with a reduced displacement.
- said phases of interruption of the drive by the engine can be stopping phases of the engine, and in particular that said stopping phases of the engine are the stopping phases of a Automatic shutdown and restart system of the engine, such as the "Stop and Start" system.
- the electric motor of the hybrid compressor according to the invention can be requested in other circumstances, especially when said phases of interruption of the drive by the engine are acceleration phases of the vehicle. It is known that when a vehicle accelerates the air conditioning circuit is stopped by mechanically cutting the compressor of the engine, so as to remove the resistant torque imposed on the crankshaft by the compressor. Under these conditions, the air conditioning can nevertheless be maintained by operating the electric motor of the hybrid compressor according to the invention.
- the Hybrid compressor comprises means for operating the electric motor before the start of a stopping phase of the engine.
- the electric motor is therefore put into operation by anticipation, before the engine actually stops.
- the electric motor which is known to be of reduced power, does not have to overcome the different refrigerant pressure variations which generally appear in the air-conditioning circuit as a result of the complete shutdown of the cooling circuit. air conditioner.
- said means for starting up the electric motor are means for detecting the stoppage of the engine of an automatic shutdown and restart system of the engine.
- these detection means can be very varied and generally depend on the strategy chosen by the manufacturers.
- One example is its detection of an action on the brake pedal when the speed of the vehicle falls below a given threshold.
- the invention also relates to an assembly of a hybrid compressor according to the invention and an electric drive motor of said hybrid compressor, wherein Se electric motor is powered by a low voltage direct current. More specifically, said low-voltage direct current is supplied by the vehicle's 12 V network.
- the implementation of the hybrid compressor according to the invention is then greatly simplified since it does not involve any modification of the onboard electrical network.
- Figure 1 is a diagram of an air conditioning circuit comprising a hybrid compressor according to the invention.
- FIG. 2 is a diagram illustrating the operation of the hybrid compressor of FIG. 1 for various life situations of a motor vehicle equipped with the "Stop and Start" function.
- FIG. 3 is a block diagram of a control circuit of the electric drive motor of the hybrid compressor of FIG. 1.
- a conventional air conditioning circuit of a motor vehicle with a combustion engine comprising a compressor 10 of a refrigerant which can be an organic fluid, inorganic or eutectic.
- refrigerant which can be an organic fluid, inorganic or eutectic.
- Non-limiting examples include supercritical CO 2 carbon dioxide, refrigerants known as R134A, 1234yf or GAR ("Global Alternative Refrigerant").
- R134A refrigerants known as R134A, 1234yf or GAR ("Global Alternative Refrigerant"
- GAR Global Alternative Refrigerant
- the exchanger 11 may be a water exchanger, or an air exchanger cooled directly by the outside air.
- the refrigerant is then led to a pressure reducer 12 so that it is cooled before entering the evaporator 13 where heat exchange occurs between the cooled refrigerant and the air drawn towards the passenger compartment of the vehicle .
- the refrigerant, heated at the outlet of the evaporator 13, is then returned to the compressor 10 to perform a new thermal cycle.
- the compressor 10 of FIG. 1 is a hybrid compressor comprising a variable-displacement compression chamber 101 whose axis 102 can be driven either by an electric motor 20 or by the crank shaft of the engine (not shown) of the vehicle via a belt and a pulley 30 adapted to be mechanically connected to the shaft 102 via a clutch 31.
- the axis 102 of the compression chamber 101 is driven by the heat engine, the pulley 30 being coupled to the axis 102 by the clutch 31.
- the displacement of the compression chamber is then chosen in an interval higher values close to the maximum capacity, 90 to 110 cm 3 for example.
- the hybrid compressor 10 is capable of ensuring an optimum level of comfort inside the cabin of the vehicle, whatever the outside temperature, the sunshine and the degree of relative humidity.
- the air-conditioning compressor may no longer be driven by the vehicle's combustion engine and, as a result, the air conditioning system may stop operating and no longer maintain the temperature of the vehicle. comfort inside the cabin. This is particularly true during phases stop the engine imposed by a system shutdown and automatic restart of the engine able to implement the "Stop and Start" function for vehicles equipped with this function.
- the electric motor 20 is operated during these stopping phases so as to maintain the flow of refrigerant in the air conditioning circuit.
- the electric motor is then substituted for the engine.
- the latter is preferably disengaged from the compression axis 102.
- FIG. 3 shows how in practice the passage of the compressor drive 10 from the heat engine to the electric motor 20.
- the electronic control unit 50 of the air conditioning circuit 51 transmits a power extension a latching signal of the electric motor 20
- the module 51 actuates an auxiliary electric motor 103 making it possible to modify the displacement of the compression chamber 101 by the value of the upper interval where it was before the interruption of the drive by the motor. thermal at a value of the lower range, between 20 and 40 cm 3 for example.
- the power module 51 sends the electric motor 20 the power necessary to maintain, during the stopping phase of the engine, the operation of the compressor 10 to a sufficient level, considering the initial conditions of air conditioning before stopping the engine.
- the cooling capacity to be provided by the electric motor 20 is relatively low.
- a cooling capacity of 6 kW to guarantee comfort in the passenger compartment of a vehicle exposed to a high temperature of 25 ° to 45 ° C. under sunshine of 1000 Wm 2 and a relative humidity of 50 and 60%.
- the cooling capacity to be supplied is between 1 kW and 3 kW depending on the segment of the vehicle.
- An electric power of the order of 500 to 800 W to be provided by the power module 51 is then sufficient to maintain comfort in the passenger compartment.
- the upper and lower ranges of displacements can be reduced simply to the maximum and minimum displacements only.
- the compression chamber 101 then switches binary between these two displacements according to whether the driving motor of the shaft of the chamber is the heat engine or the electric motor.
- the electric power source may be a battery 40 or an additional unit with or without a storage capacitor.
- variable displacement compression chamber 101 can be made by a rotary drive compression chamber, in particular a conventional vane compression chamber whose suction volume, corresponding to the displacement, is adjustable between the minimum value of 20 cm3, for example, and the maximum value of 110 cm3. for example, by varying the position of the suction port in the chamber.
- a rotary drive compression chamber in particular a conventional vane compression chamber whose suction volume, corresponding to the displacement, is adjustable between the minimum value of 20 cm3, for example, and the maximum value of 110 cm3. for example, by varying the position of the suction port in the chamber.
- FIG. 2 the operating states of the heat engine and of the electric motor 20 for driving the hybrid compressor 10 of a motor vehicle equipped with the "Stop and Start" function are shown, the value 0 corresponding to the engine stop and the value 1 to its operation.
- the electric motor 20 is put into operation, according to the invention, so as to ensure the maintenance of comfort in the engine. cockpit during the stopping phase of the engine.
- the starting of the electric motor 20 is carried out with anticipation, that is to say before the start of a stopping phase of the engine triggered by the "Stop and Start” function.
- the advantage of this arrangement is that the electric motor does not have to provide the additional torque that would be needed to overcome the resistive torque induced by the refrigerant pressure rearrangements in the air conditioning circuit that could occur at the time of operation. Stopping the engine.
- the power of the electric motor 20 can therefore be dimensioned accordingly.
- the means implemented by the "Stop and Start” function to detect whether the stopping conditions of the heat engine are verified and to decide to stop the engine. As soon as the "Stop and Start” function decides to stop the heat engine, the electric motor 20 is immediately put into operation before the actual shutdown of the heat engine.
- the conditions for automatic shutdown of the engine depend on the strategy adopted by the vehicle manufacturer. One can mention, inter alia, an action on the brake pedal when the vehicle is traveling at low speed, less than 5 km / hour, for example.
- FIG. 2 shows another circumstance in which the electric motor 20 can be put into operation in order to guarantee the continuity of the comfort temperature during a shutdown of the air conditioning circuit.
- the shutdown of the air conditioning system is not due to a shutdown of the thermal engine, but at the cutting of ia drive pulley 102 Tax 101 chamber 101 compression. This situation may occur when acceleration of the vehicle for example, so as to apply to the crankshaft a maximum torque and best meet the demand for acceleration.
- the electric motor 20 is put into operation as soon as the heat engine is decoupled from the compression axis 102.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Conditioning For Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/636,736 US20130058801A1 (en) | 2010-03-31 | 2011-03-22 | Hybrid compressor for an air-conditioning circuit |
CN201180026901.2A CN102918268B (zh) | 2010-03-31 | 2011-03-22 | 用于空调回路的混合动力压缩机 |
JP2013501894A JP2013524074A (ja) | 2010-03-31 | 2011-03-22 | 空調回路のためのハイブリッド圧縮機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1052381 | 2010-03-31 | ||
FR1052381A FR2958342B1 (fr) | 2010-03-31 | 2010-03-31 | Compresseur hybride pour circuit de climatisation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011124800A1 true WO2011124800A1 (fr) | 2011-10-13 |
Family
ID=42320531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2011/050587 WO2011124800A1 (fr) | 2010-03-31 | 2011-03-22 | Compresseur hybride pour circuit de climatisation |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130058801A1 (fr) |
JP (1) | JP2013524074A (fr) |
CN (1) | CN102918268B (fr) |
FR (1) | FR2958342B1 (fr) |
WO (1) | WO2011124800A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150367711A1 (en) * | 2012-06-26 | 2015-12-24 | Nissan Motor Co., Ltd. | Air conditioning device for vehicle and air conditioning control method for vehicle |
US10676077B2 (en) | 2015-12-10 | 2020-06-09 | Cummins, Inc. | Systems and methods of energy management and control of vehicle accessories |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016070133A (ja) * | 2014-09-29 | 2016-05-09 | 株式会社マキタ | エアコンプレッサ |
DE102015214723A1 (de) * | 2015-08-03 | 2017-02-09 | Robert Bosch Gmbh | Drucklufterzeugungsvorrichtung |
EP4070978B1 (fr) | 2016-11-01 | 2023-08-09 | Eaton Intelligent Power Limited | Système de charge électrique monté sur transmission avec marche en roue libre du moteur et cvca à double mode |
US11938825B2 (en) | 2017-11-07 | 2024-03-26 | Eaton Intelligent Power Limited | System and method of a mobile electrical system |
US11472287B2 (en) | 2017-11-07 | 2022-10-18 | Eaton Intelligent Power Limited | Transmission mounted electrical charging system with improved battery assembly |
EP3707023A2 (fr) | 2017-11-07 | 2020-09-16 | Eaton Intelligent Power Limited | Système de charge électrique monté sur transmission conjointement avec dispositif absorbeur de puissance à deux modes et puissance absorbée motrice à moteur thermique éteint |
WO2019092026A1 (fr) | 2017-11-07 | 2019-05-16 | Eaton Intelligent Power Limited | Système de charge électrique monté sur transmission et accouplement de charge de chaîne cinématique double |
US11124058B2 (en) | 2019-02-07 | 2021-09-21 | Eaton Intelligent Power Limited | Transmission mounted electrical charging system PTO gear arrangement |
GB2596720B (en) | 2019-03-18 | 2023-07-19 | Eaton Intelligent Power Ltd | Transmission mounted electrical charging system PTO gear arrangement |
US11272638B2 (en) | 2019-06-20 | 2022-03-08 | Eaton Intelligent Power Limited | System, method, and apparatus for integrating high power density power electronics on a mobile application |
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JPH10236151A (ja) * | 1997-02-24 | 1998-09-08 | Denso Corp | 車両用コンプレッサの制御装置 |
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2010
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2011
- 2011-03-22 JP JP2013501894A patent/JP2013524074A/ja active Pending
- 2011-03-22 US US13/636,736 patent/US20130058801A1/en not_active Abandoned
- 2011-03-22 CN CN201180026901.2A patent/CN102918268B/zh not_active Expired - Fee Related
- 2011-03-22 WO PCT/FR2011/050587 patent/WO2011124800A1/fr active Application Filing
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JPH10236151A (ja) * | 1997-02-24 | 1998-09-08 | Denso Corp | 車両用コンプレッサの制御装置 |
US5867996A (en) * | 1997-02-24 | 1999-02-09 | Denso Corporation | Compressor control device for vehicle air conditioner |
EP1045144A1 (fr) * | 1998-10-29 | 2000-10-18 | Bosch Automotive Systems Corporation | Compresseur hybride |
EP1334854A2 (fr) * | 2000-12-07 | 2003-08-13 | Calsonic Kansei Corporation | Système de conditionnement d'air |
US20020157414A1 (en) * | 2001-04-27 | 2002-10-31 | Shigeki Iwanami | Air-conditioning apparatus including motor-driven compressor for idle stopping vehicles |
EP1302345A2 (fr) * | 2001-10-15 | 2003-04-16 | Kabushiki Kaisha Toyota Jidoshokki | Dispositif de climatisation d'un véhicule |
US20030098624A1 (en) * | 2001-11-29 | 2003-05-29 | Jiro Iwasa | Vehicular rotational apparatus |
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US20030200760A1 (en) * | 2002-04-26 | 2003-10-30 | Shigeki Iwanami | Composite auxiliary machine for vehicle and control unit thereof |
EP1400689A1 (fr) * | 2002-09-19 | 2004-03-24 | Sanden Corporation | Appareil de climatisation de véhicule comprenant un compresseur hybride |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150367711A1 (en) * | 2012-06-26 | 2015-12-24 | Nissan Motor Co., Ltd. | Air conditioning device for vehicle and air conditioning control method for vehicle |
US10029539B2 (en) * | 2012-06-26 | 2018-07-24 | Nissan Motor Co., Ltd. | Air conditioning device for vehicle and air conditioning control method for vehicle |
US10676077B2 (en) | 2015-12-10 | 2020-06-09 | Cummins, Inc. | Systems and methods of energy management and control of vehicle accessories |
US11325578B2 (en) | 2015-12-10 | 2022-05-10 | Cummins Inc. | Systems and methods of energy management and control of vehicle accessories |
Also Published As
Publication number | Publication date |
---|---|
CN102918268A (zh) | 2013-02-06 |
US20130058801A1 (en) | 2013-03-07 |
FR2958342B1 (fr) | 2018-06-29 |
CN102918268B (zh) | 2016-04-27 |
FR2958342A1 (fr) | 2011-10-07 |
JP2013524074A (ja) | 2013-06-17 |
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