EP2726312A2 - Circuit de refroidissement pour vehicule hybride ou electrique - Google Patents
Circuit de refroidissement pour vehicule hybride ou electriqueInfo
- Publication number
- EP2726312A2 EP2726312A2 EP12738504.5A EP12738504A EP2726312A2 EP 2726312 A2 EP2726312 A2 EP 2726312A2 EP 12738504 A EP12738504 A EP 12738504A EP 2726312 A2 EP2726312 A2 EP 2726312A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- cooling circuit
- cooled
- cooling plate
- temperature
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 126
- 238000007789 sealing Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002826 coolant Substances 0.000 description 38
- 238000012546 transfer Methods 0.000 description 12
- 239000000470 constituent Substances 0.000 description 11
- 239000013529 heat transfer fluid Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000000056 organ Anatomy 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000007872 degassing Methods 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000002470 thermal conductor Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
Definitions
- the invention relates to a cooling circuit for a hybrid or electric motor vehicle, as well as to a hybrid or electric motor vehicle comprising such a cooling circuit.
- the invention belongs to the field of motor vehicle cooling circuits.
- the invention finds a particularly advantageous application in the field of hybrid or electric motor vehicles.
- Hybrid vehicles generally include two circuits with coolant: one, called high temperature (HT), for the chain of thermal traction (including the combustion engine and the gearbox) and the other one, said low temperature (BT), for components dedicated to the electric power train (including electric motor (s), power electronics, inverters, converters, starter-alternator, battery charger, etc.).
- HT high temperature
- BT low temperature
- components dedicated to the electric power train including electric motor (s), power electronics, inverters, converters, starter-alternator, battery charger, etc.
- Electric vehicles only include the coolant circuit BT.
- the HV and LV circuits are independent.
- the electrical components generally support maximum temperatures of the order of 60 to 90 ⁇ and can not therefore withstand the temperatures generated by the heat engine in its own cooling circuit, which can reach and even temporarily exceed 120 ⁇ in operation, vo fire 140 in "heat stroke", with locally up to 160 to 180 ⁇ , for example in a turbocharger turbine housing.
- HV and LV circuits have a point of contact to ensure, through a common interface, their filling and degassing. Nevertheless, the passage of the "hot" coolant of the HT circuit in the LV circuit is never allowed in this case outside the cooling circuit filling.
- the LV circuit conventionally comprises, in addition to the cooling members of the electric traction system:
- a water pump usually electric, to allow the circulation of coolant
- rechargeable vehicles are therefore equipped with a power battery charger, generally onboard that is to say integrated into the vehicle, to transfer high voltage electricity from the external electrical sector to the hybrid or electric vehicle rechargeable for all plug-in operations, including pre-thermal conditioning of the vehicle and charging of high and low voltage batteries.
- a power battery charger generally onboard that is to say integrated into the vehicle, to transfer high voltage electricity from the external electrical sector to the hybrid or electric vehicle rechargeable for all plug-in operations, including pre-thermal conditioning of the vehicle and charging of high and low voltage batteries.
- This charger has its own cooling needs, since its constituent parts (transformers, converters, transistors, etc.) dissipate heat through losses in the power conversion process.
- the calories thus produced are generally evacuated by cooling the charger, either by air (by natural or forced convection) or by liquid.
- FIGS 1 and 2 illustrate two conventional architectures of the cooling circuit of the electric power train, whether the vehicle is hybrid or fully electric.
- the charger 14 is associated with the cooling circuit BT in series with the other members of the electric traction system to be cooled and is located at the inlet of the cooling circuit BT, because of the cooling constraints. higher than it introduces (the temperature of the water required at the input of the charger is lower than for the other organs).
- the cooling circuit consists of a heat transfer circuit BT and a heat transfer circuit HT.
- an electric machine (EDTM) 22 adapted to operate in engine mode, for converting electrical energy into mechanical energy supplied to the rear axle of the vehicle, and in generator mode, for converting mechanical energy into electrical energy into recovering part of the kinetic energy of the vehicle, for example to recharge the high voltage traction battery,
- EDTM electric machine
- BASM front electric machine
- a motor-fan unit (GMV) 32 consisting of a cooling fan arranged on the front face of the vehicle, upstream or downstream of the cooling exchangers,
- the cooling circuit further comprises a degassing box 48 common to the heat transfer circuits BT and HT.
- the charger 14 is associated with the cooling circuit BT also at the input of the cooling circuit BT, but is placed not in series, but in parallel with other members of the cooling system. electric traction to cool.
- the hydraulic load loss of the charger implemented in the cooling circuit BT, has an impact on the dimensioning of the circuit and in particular on the design its electric water pump 28, to ensure the required cooling rate inside the other members of the electric power train to be cooled during the solicitation of the hybrid or electric vehicle while driving.
- the charger which is not used and therefore dissipates no calorie by Joule effect, is heated by the BT coolant circulating in the LV circuit.
- the charger therefore experiences a higher average internal temperature than it would be during its only phases of use. This has a significant impact on the reliability and life of the charger.
- the full power availability of the charger can be reduced for "plug-in" operations such as thermal preconditioning or charging of high and low voltage batteries as soon as the vehicle is connected to the external electrical network immediately following a hybrid or electric ride, the charger having a thermal protection phase that reduces its electrical performance based on its internal temperature and / or the coolant temperature at the input of the charger.
- US-A-5 531 285 discloses a cooling circuit of a vehicle for exchanging heat between a radiator and organs arranged on separate loops of the cooling circuit. Valves disposed on these cooling loops make it possible to regulate the flow rate of cooling fluid passing through each of these members and the flow rate of cooling fluid in some of these members can be stopped when the temperature of the fluid becomes too great.
- the invention aims to overcome the aforementioned drawbacks of the prior art.
- the present invention proposes a liquid cooling circuit of the electric traction chain components of a hybrid or electric motor vehicle, comprising a first branch including at least one first member of the traction chain to be cooled and a first second branch in parallel with the first branch and including a second member of the power train to be cooled, characterized in that it comprises means for closing the cooling circuit situated on the second branch and in that the means for shutter is integrated with the second organ to be cooled.
- the invention avoids the extra cost and difficulties associated with the implementation of one or more actuator (s) remote (s) on the cooling circuit and on the vehicle. It also eliminates the need for a support or an external electrical harness to control such an actuator. In addition, it does not create additional risks of failure on the LV circuit. In addition, it has a very limited impact, or even zero on the size of the charger.
- the invention makes it possible to improve the availability of the charger during the "plug-in" operating phases (charging of the high-voltage batteries of traction and low voltage, preconditioning of the vehicle) and thus, the services for the customer.
- the invention also makes it possible to obtain a gain in development costs, in manufacturing cost and in mass, by avoiding the oversizing of the LV cooling circuit to overcome the hydraulic load loss of the charger when it is not working. in the driving phase, while the other members of the electric power train require maximum cooling during the driving load of the hybrid or electric vehicle.
- the closure means is adapted to be closed or open depending on the internal temperature of the second member to be cooled.
- closure means is adapted to be closed or open depending on the temperature at the inlet or outlet of the second member to be cooled.
- the closure means is made in the form of a thermostat or a bimetallic strip or a heat-contactor or a thermo-expandable wire.
- the cooling circuit further comprises a sealing means cooperating with the sealing means to guarantee its sealing when the closure means is closed.
- the second member to be cooled is a power battery charger.
- the charger comprises a cooling plate.
- the closure means is adapted to be closed or open depending on the temperature at the inlet or the outlet of the plate cooling.
- the cooling plate has an inlet orifice and an outlet orifice and the closure means is adapted to close off the inlet orifice or the outlet orifice of the cooling plate.
- the present invention also provides a hybrid or electric motor vehicle, remarkable in that it comprises a cooling circuit as briefly described above.
- FIG. 3 is a schematic view of the architecture of a cooling circuit according to the present invention, in a particular embodiment
- FIG. 4 is a detailed view of a member of the cooled electric traction chain according to the present invention, in a particular embodiment
- FIGS. 5a and 5b illustrate a device for closing the circulation of the coolant according to the present invention, in a first particular embodiment
- FIGS. 6a and 6b illustrate a device for closing the circulation of the coolant according to the present invention, in a second particular embodiment
- FIGS. 7a and 7b illustrate a device for closing the circulation of the coolant according to the present invention, in a third particular embodiment.
- FIGS. 8a and 8b illustrate a device for closing the circulation of the coolant according to the present invention, in a fourth particular embodiment.
- a liquid cooling circuit of the components of the electric power train of a hybrid or electric motor vehicle comprises two branches 10 and 12.
- the first branch 10 includes the same members as a conventional architecture of the type of FIGS. 1 and 2 described above, namely, on a low temperature heat transfer circuit (BT):
- BT low temperature heat transfer circuit
- an electric machine (EDTM) 22 adapted to operate in engine mode, for converting electrical energy into mechanical energy supplied to the rear axle of the vehicle, and in generator mode, for converting mechanical energy into electrical energy into recovering part of the kinetic energy of the vehicle, for example to recharge the high voltage traction battery,
- EDTM electric machine
- BASM front electric machine
- the cooling circuit also comprises, as in the architectures illustrated in FIGS. 1 and 2, a high temperature heat transfer circuit (HT) in which:
- a motor-fan unit (GMV) 32 consisting of a cooling fan arranged on the front face of the vehicle, upstream or downstream of the cooling exchangers,
- the cooling circuit comprises, as in the architectures illustrated in FIGS. 1 and 2, a degassing box 48 common to HT and LV heat transfer circuits.
- the cooling circuit of the components of the electric traction chain comprises a second branch 12 in parallel with the first branch 10.
- the second branch 12 includes another member of the electric traction chain to be cooled, which, by way of non-limiting example, may be a power battery charger 14.
- the member 14 could just as well be any other member of the electric power train to be cooled, such as a power electronics component.
- a device 16 adapted to close the cooling circuit is located on the second branch 12 and is integrated in the member 14, here the charger.
- the shutter device 16 directly controls the cooling of the charger.
- This command can be active, for example in the form of an electrical control internal to the charger 14 if the shutter device 16 is of the electrically controlled valve type.
- this control is passive, for example if the closure device 16 is of the thermostat or bimetallic type or thermo-contact or thermally expandable wire, for example.
- the closure device 16 can be integrated in the cooling plate.
- closure device 16 is located at the inlet or outlet of the cooling plate, partially or totally in the cooling plate.
- the shutter device 16 allows stopping or restoring the flow of coolant within the cooling plate.
- the cooling plate is not a specific characteristic of the charger. In other words, if the member of the power train to be cooled is not a charger but another member, such as power electronics, this member may also include a cooling plate.
- Closing and opening of the closure device 16 can be regulated mainly in two ways.
- the closure device 16 is adapted to be closed or open depending on the internal temperature of the charger 14, that is to say for example depending on the temperature in contact with its most thermally sensitive components.
- the closure device 16 may be adapted to be closed or open depending on the temperature at the inlet or outlet of the charger 14.
- the closure device 16 can be adapted to be closed or open depending on the temperature at the inlet or outlet of the cooling plate.
- the cooling plate may have an inlet port and an outlet port, in which case the closure device 16 is adapted to close off said inlet port or outlet port.
- the shutter device 16 is kept in the closed position as long as the temperature measured according to the various possibilities described above does not reach a minimum predetermined value and / or the shutter device 16 is put into position. opening position as soon as this temperature exceeds a predetermined maximum value.
- a sealing member such as a seal cooperates with the closure device 16 to ensure its sealing when the closure device 16 is closed.
- the sealing element is housed in, on or against the closure device 16.
- the sealing element can make the contact and the interface between the closure device 16 and the cooling plate of the charger 14.
- FIG. 4 represents a detailed view of a member 14 to be cooled, in a particular embodiment where this member comprises a cooling plate 41. The possible upper protective cover of the member 14 is removed.
- the electrical and electronic components are assembled on the cooling plate 41:
- a thermal conductor such as a paste or a thermal glue
- a thermal conductor can be implemented to improve the thermal contact between each component and the cooling plate 41; in descending order of the cooling requirements required by each electrical and electronic component according to the direction of circulation of the coolant inside the cooling plate 41, so that the components requiring the most cooling are irrigated by the heat transfer liquid at the inlet of the cooling plate 41, and so on until the last components that need to be cooled the least.
- the circulation of the heat-transfer fluid inside the cooling plate 41 may be in the form of an I, U, Z, trombone or following path. a combination of these forms, and the inlet 43 and outlet 45 tips of the cooling plate 41 may be implanted on the same side or on adjacent or opposite sides.
- the cooling plate 41 is designed so as to optimize the compromise between the pressure drops on the heat transfer liquid which passes through it, its heat exchange coefficients and the heat transfer medium flow required.
- the closure device 16 for the circulation of the coolant inside the cooling plate 41 is preferentially integrated with it or with the member 14 to be cooled and is preferably implanted so as to control the inlet of the fluid coolant in the cold plate 41.
- the closure device 16 can control the outlet of the coolant from the cold plate 41.
- the closure device 16 for the circulation of the coolant inside the cooling plate 41 is actuated directly by the temperature of the most thermally stressed electrical and electronic components.
- the core of the closure device 16 consists of a bimetallic strip, a thermo-expandable wire, a thermo-contact or a thermostat, the thermal contact is sought, maximized and optimized between these electrical and electronic components and the heart of the device shutter 16, if necessary through the implementation of a thermal conductor (such as a paste or a thermal glue).
- a thermal conductor such as a paste or a thermal glue
- the closure device 16 for the circulation of the heat-transfer fluid inside the cooling plate 41 is indirectly actuated by the temperature of the electrical and electronic components, through the temperature of the wall of the plate. cold 41.
- a few examples of implementation of the closure device 16 for the circulation of the heat transfer fluid inside the cooling plate 41, which illuminates various possible technologies, are described below, in a non-limiting, non-exclusive and non-exhaustive manner. for the active heart of this device.
- Figures 5a and 5b show a closure device 16 incorporating a bimetal.
- the bimetal is assembled (for example by basting, punching, embedding, blocking, etc.) so that the only moving part by the evolution of its temperature is that which obstructs the entry of the coolant into the cooling plate 41.
- FIG. 5a shows the configuration taken by the closure device 16 at rest: the bimetallic strip is then in the "closed” position and the circulation of the heat transfer fluid within the cooling plate 41 is sealed in a sealed manner, by the setting implementation of a seal between the bimetal in "closed” position and its support on the outlet of the inlet end 43 of the coolant in the cooling plate 41.
- This configuration of the closure device 16 is also verified in operation as long as the temperature of the member 14 to be cooled, and more precisely the temperature of its constituent components, is insufficiently high. As the member 14 is used, it heats up (thermal losses by switching and conduction via Joule effect in the semiconductors, losses in the power capacities, power supply losses of the control cards, etc.). , initiating the opening of the closure device 16.
- FIG. 5b illustrates this configuration: the calories dissipated by the electrical and electronic components are mainly communicated by conduction and convection, either indirectly through the wall of the cold plate 41, or directly to the bimetallic strip 16.
- bimetallic strip 16 that is left mobile thus moves under the effect of the evolution of its temperature, under the constraint of the calories that are transferred to it, according to the arrow indicated in FIG. 5b and thus opens the passage of the heat-transfer fluid within cooling plate 41 which circulates there henceforth, thus ensuring by this means the cooling of the member 14 to cool and its constituent components.
- bimetallic strip 16 By the use of bimetallic strip 16, the process is reversible: if the temperature of the member 14 to be cooled and that of its constitutive components descends, by the cooling provided by the circulation of the coolant within the cooling plate 41, below the temperature threshold activating the bimetallic strip 16, then the bimetallic strip 16 progressively takes a more and more closed position, until it resumes the closed configuration illustrated in Figure 5a.
- FIGS 6a and 6b illustrate a variant of the closure device 16, but this time with a closure device core 16 rather thermo-contact type or thermally expandable wire or thermostat.
- This core has an axis which will translate according to the evolution of the temperature, this axis being integral with a plug obstructing or not the entry of the coolant into the cooling plate 41.
- FIG. 6a shows the configuration taken by the shutter device 16 at rest: in the "closed” position, the plug completely obstructs the inlet of the coolant in the cooling plate 41, in a sealed manner by the implementation of a seal between the plug in "closed” position and its support on the outlet of the inlet end 43 of the coolant in the cooling plate 41.
- This configuration of the closure device 16 is also verified in operation as long as the temperature of the member 14 to be cooled, and more precisely the temperature of its constituent components, is insufficiently high. As the member 14 is used, it heats up, initiating the opening of the closure device 16.
- Figure 6b illustrates this configuration: the electrical and electronic components communicate their calories by conduction and convection (indirectly through the wall of the cold plate 41 or directly), until the thermo-contact 16 (for example). Under the effect of these calories, the inner part of the thermo-contact 16 retracts: the axis then translate according to the arrow indicated in Figure 6b, causing in its movement the plug (which is integral with it), which opens the door. passage of the coolant within the cooling plate 41 which is now circulating, thereby ensuring the cooling of the member 14 to cool and its constituent components.
- thermo-contact 16 rather thermo-contact type or thermo-expandable wire or thermostat makes the process reversible.
- the thermo-contact 16 gradually takes a position more and more closed, until the closed configuration shown in Figure 6a.
- FIGS. 7a and 7b illustrate another variant of the closure device 16, with always a shutter core of the thermo-contact type or thermo-expandable wire or thermostat, having a translating axis according to the evolution of the temperature, but this time without a connection at rest between the part obstructing or not the heat transfer fluid inlet and the outlet of the inlet end 43 of the coolant in the cooling plate 41.
- This part obstructing or not the heat transfer fluid inlet in the cooling plate 41 is here for example a hatch pressed against the outlet of the inlet end 43 of the coolant in the cooling plate 41 by a return spring.
- FIG. 7a shows the configuration taken by the shutter device
- thermo-contact is contracted so that there is no contact between its axis and the hatch. This therefore completely obstructs the entry of the coolant into the cooling plate 41, sealingly by the implementation of a seal between the hatch in "closed” position and its support on the outlet of the inlet end 43 of the coolant in the cooling plate 41.
- This configuration of the closure device 16 is also verified in operation as long as the temperature of the member 14 to be cooled, and more precisely the temperature of its constituent components, is insufficiently high. As the member 14 is used, it heats up and the electrical and electronic components communicate their calories by conduction and convection (indirectly through the wall of the cold plate 41 or directly), until the thermo-contact 16 (for example).
- Figure 7b illustrates this configuration: under the effect of these calories, the inner part of the thermo-contact 16 expands and the axis then translate according to the arrow indicated in Figure 7b.
- the axis On a certain part of its translational movement, the axis may not be in contact with the hatch, which remains closed until the contact between the axle and the hatch has been established and the effort exerted by the axis is insufficient to overcome the effect of the stiffness of the return spring pressing the hatch against the outlet of the inlet end 43 of the coolant in the cooling plate 41.
- the member 14 to be cooled continues its heating and the calories thus communicated to the thermo-contact 16 continue the translation of the axis according to the arrow shown in Figure 7b, which happens for a certain temperature associated with electrical and electronic components, in contact with the hatch: with the continuation of the translation of the axis linked to heating by its operation of the member 14 to cool, the axis transmits to the hatch its force which overcomes the effort of plating the hatch exerted by the return spring against the outlet of the inlet end 43 of the coolant in the cooling plate 41.
- this dead stroke of the axis of the thermo-contact 16 does not exist.
- the opening of the hatch then releases the passage of the coolant within the cooling plate 41 which is now circulating, thereby ensuring the cooling of the member 14 to cool and its constituent components.
- thermo-contact rather thermo-contact type or thermo-expandable wire or thermostat makes the process reversible.
- the thermo-contact retracts, the axis translate in the opposite direction of the arrow indicated in Figure 7b and releases its effort on the hatch: after a certain retraction of the axis, the force exerted by the axis decreases in front of the force exerted by the return spring and the trap gradually takes a position more and more closed, until the closed configuration shown in Figure 7a.
- FIGS. 8a and 8b illustrate yet another variant of the closure device 16 of FIGS. 6a and 6b, in which the axes of the inlet end piece 43 of the heat transfer fluid in the cooling plate 41 and of the closure device 16 are orthogonal instead of parallel.
- the heart of the closure device 16 is again of thermo-contact type or thermo-expandable wire or thermostat.
- This core has a translatable axis with temperature evolution, axis integral with a plug obstructing or not the inlet nozzle 43 of the heat transfer fluid.
- FIG. 8a The description of FIG. 8a is identical to that of FIG. 6a.
- the inner part of the thermo-contact 16 expands: the axis then translate according to the arrow indicated in Figure 8b and the plug (which is integral with it) releases the passage of the coolant, thus ensuring the cooling of the member 14 to cool and its constituent components.
- thermo-contact 16 gradually takes a position more and more closed, until 'to resume the closed configuration illustrated in Figure 8a.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Hybrid Electric Vehicles (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1155974A FR2977199B1 (fr) | 2011-07-01 | 2011-07-01 | Circuit de refroidissement pour vehicule hybride ou electrique |
| PCT/FR2012/051380 WO2013004935A2 (fr) | 2011-07-01 | 2012-06-19 | Circuit de refroidissement pour vehicule hybride ou electrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2726312A2 true EP2726312A2 (fr) | 2014-05-07 |
Family
ID=46579165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12738504.5A Withdrawn EP2726312A2 (fr) | 2011-07-01 | 2012-06-19 | Circuit de refroidissement pour vehicule hybride ou electrique |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2726312A2 (fr) |
| CN (1) | CN103648819A (fr) |
| FR (1) | FR2977199B1 (fr) |
| WO (1) | WO2013004935A2 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201116959D0 (en) | 2011-09-30 | 2011-11-16 | Bae Systems Plc | Vehicle localisation with 2d laser scanner and 3d prior scans |
| FR3021595B1 (fr) * | 2014-05-27 | 2016-06-24 | Peugeot Citroen Automobiles Sa | Installation et procede de refroidissement et de chauffage d’un vehicule hybride |
| CN107187402B (zh) * | 2016-03-15 | 2019-11-08 | 比亚迪股份有限公司 | 混合动力汽车格栅进风量控制方法及装置 |
| US11260749B2 (en) * | 2016-09-26 | 2022-03-01 | Transportation Ip Holdings, Llc | Cooling control systems |
| CN107199879B (zh) * | 2017-04-24 | 2020-04-10 | 北京长城华冠汽车科技股份有限公司 | 一种新能源汽车的膨胀水箱共享系统和新能源汽车 |
| DE102018102542A1 (de) * | 2018-01-29 | 2019-08-01 | Woco Industrietechnik Gmbh | Vorrichtung zur Handhabung von Fluiden sowie Verfahren zur Herstellung derselben |
| FR3083033B1 (fr) * | 2018-06-22 | 2020-05-29 | Renault S.A.S | Machine electrique refroidie par un liquide caloporteur dielectrique |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9116661D0 (en) | 1991-08-01 | 1991-09-18 | The Technology Partnership Ltd | Vehicle cooling system |
| KR940010453A (ko) * | 1992-10-01 | 1994-05-26 | 가나이 쯔도무 | 전기 자동차의 냉각 시스템 및 이것에 이용되는 전기 모터 |
| FR2800017B1 (fr) * | 1999-10-25 | 2002-01-11 | Valeo Thermique Moteur Sa | Dispositif de refroidissement pour un vehicule a moteur electrique alimente par une pile a combustible |
| US7082905B2 (en) * | 2003-02-24 | 2006-08-01 | Honda Motor Co., Ltd. | Cooling apparatus for hybrid vehicle |
| US7743614B2 (en) * | 2005-04-08 | 2010-06-29 | Bsst Llc | Thermoelectric-based heating and cooling system |
| CN101186194A (zh) * | 2006-11-17 | 2008-05-28 | 比亚迪股份有限公司 | 一种车载充电器的冷却系统及冷却方法 |
| FR2944236B1 (fr) * | 2009-04-09 | 2012-10-19 | Renault Sas | Dispositif de refroidissement pour vehicule automobile |
| ITBO20090427A1 (it) * | 2009-07-02 | 2011-01-03 | Ferrari Spa | Veicolo a trazione elettrica con raffreddamento mediante ciclo frigorifero |
| CN101791970B (zh) * | 2010-04-06 | 2012-06-27 | 奇瑞汽车股份有限公司 | 一种车载充电器的冷却系统及冷却方法 |
-
2011
- 2011-07-01 FR FR1155974A patent/FR2977199B1/fr not_active Expired - Fee Related
-
2012
- 2012-06-19 EP EP12738504.5A patent/EP2726312A2/fr not_active Withdrawn
- 2012-06-19 CN CN201280032972.8A patent/CN103648819A/zh active Pending
- 2012-06-19 WO PCT/FR2012/051380 patent/WO2013004935A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013004935A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2977199A1 (fr) | 2013-01-04 |
| CN103648819A (zh) | 2014-03-19 |
| WO2013004935A2 (fr) | 2013-01-10 |
| FR2977199B1 (fr) | 2013-08-02 |
| WO2013004935A3 (fr) | 2013-02-28 |
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