• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a thermal management circuit (1) for a hybrid or electric vehicle comprising a first reversible air-conditioning loop (A) and comprising a bifluid heat exchanger (7) arranged jointly on a second circulation loop (B) of a heat transfer fluid, the second circulation loop (B) comprising: • a main loop (B1) comprising a first pump (3), a first heat exchanger (5) and the bifluid heat exchanger (7), the loop main valve (B1) further comprising: a first branch branch (B 3) comprising a first radiator (13) and connected in parallel with the two-fluid heat exchanger (7), a first redirection device (31) of the heat transfer fluid from the first heat exchanger (5) to the two-fluid heat exchanger (7) or to the first radiator (13), • a secondary loop (B2) comprising a second pump (9), a second heat exchanger ch aleur (11) and a second radiator (15), the main loop (B1) and the secondary loop (B2) being connected to each other by a second branch branch (B4) and a third branch branch ( B5), the second circulation loop (B) comprising a second device (32) for redirecting the coolant from the second heat exchanger (11) to the second radiator (15) or to the two-fluid heat exchanger (7). ) via the second branch branch (B4).
    公开号:FR3081124A1
    申请号:FR1854049
    申请日:2018-05-15
    公开日:2019-11-22
    发明作者:Mohamed Yahia
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    The invention relates to the field of motor vehicles and more particularly to a thermal management circuit for a hybrid or electric motor vehicle.
    In electric and hybrid vehicles, thermal management of the passenger compartment is generally managed by an invertible air conditioning loop. By invertible, it is meant that this air conditioning loop can operate in a cooling mode in order to cool the air intended for the passenger compartment and in a heat pump mode in order to heat the air intended for the passenger compartment. This reversible air conditioning loop can also include a bypass to manage the temperature of the batteries of the electric or hybrid vehicle as well as the electric motor. It is thus possible to heat or cool the batteries and / or the electric motor thanks to the reversible air conditioning loop. However, it is not possible to at least partially manage the temperature of the batteries and / or the electric motor without using the reversible air conditioning loop. So, for example when the passenger compartment does not need to be heated or cooled, it is still necessary to fully operate the reversible air conditioning loop to heat or cool the batteries and / or the electric motor. This leads to an electrical consumption which can be too high and therefore can impact the autonomy of the electric or hybrid vehicle.
    A known solution is to use a second circulation loop separate from the air conditioning loop and inside which a heat transfer fluid circulates. The air conditioning loop and the second circulation loop are connected to each other by a two-fluid heat exchanger to allow heat exchange between the two loops. In order to dissociate the thermal management of the batteries and the electric motor, these elements can be arranged on branches parallel to one another of the second circulation loop. However, the connection between the air conditioning loop and the second circulation loop and its branches can be complex and require numerous valves, for example of the three-way valve type or even four-way valve which are expensive.
    One of the aims of the present invention is therefore to at least partially remedy the drawbacks of the prior art and to propose an improved thermal management circuit.
    The present invention therefore relates to a thermal management circuit for a hybrid or electric vehicle, said thermal management circuit comprising a first reversible air conditioning loop in which a refrigerant circulates and comprising a two-fluid heat exchanger arranged jointly on a second circulation loop d '' a heat transfer fluid, the second circulation loop of a heat transfer fluid comprising:
    • a main loop comprising a first pump, a first heat exchanger and the two-fluid heat exchanger, the main loop further comprising:
    ° a first branch branch comprising a first radiator intended to be traversed by an external air flow and connected in parallel with the two-fluid heat exchanger between a first junction point disposed upstream of said two-fluid heat exchanger and a second point junction disposed downstream of said dual-fluid heat exchanger, ° a first device for redirection of the heat transfer fluid from the first heat exchanger to the dual-fluid heat exchanger or to the first radiator, • a secondary loop comprising a second pump, a second heat exchanger and a second radiator intended to be traversed by an external air flow, the main loop and the secondary loop being connected to each other by:
    • a second branch branch connecting a third junction point arranged on the secondary loop upstream of the second radiator, between said second radiator and the second heat exchanger and a fourth junction point arranged on the main branch downstream of the first heat exchanger heat, between said first heat exchanger and the first junction point, • a third branch branch connecting a fifth junction point arranged on the secondary loop downstream of the second radiator, between said second radiator and the second heat exchanger and a sixth junction point arranged on the first branch branch downstream of the first radiator, between said first radiator and the second junction point, the second circulation loop of a heat transfer fluid comprising a second device for redirection of the heat transfer fluid from the second heat exchanger to the second radiator or to the dual fluid heat exchanger via the second branch branch.
    According to one aspect of the invention, the first redirection device is a three-way valve arranged at the first junction point.
    According to another aspect of the invention, the second redirection device is a three-way valve arranged at the third junction point.
    According to another aspect of the invention, the main loop includes an electric heating device for the heat transfer fluid disposed upstream of the first heat exchanger.
    According to another aspect of the invention, the thermal management circuit is configured to operate according to a first cooling mode in which:
    • the first redirection device is configured to redirect the heat transfer fluid from the first heat exchanger to the dual-fluid heat exchanger and prevent the circulation of the heat transfer fluid in the first branch branch, and • the second redirection device is configured to redirect the heat transfer fluid from the second heat exchanger to the second radiator and prevent the circulation of the heat transfer fluid in the second branch branch.
    According to another aspect of the invention, the thermal management circuit is configured to operate according to a second cooling mode in which:
    • the first redirection device is configured to redirect the heat transfer fluid from the first heat exchanger to the first radiator and prevent the circulation of the heat transfer fluid in the dual-fluid heat exchanger, and • the second redirection device is configured to redirect the heat transfer fluid from the second heat exchanger to the second radiator and prevent the circulation of the heat transfer fluid in the second branch branch.
    According to another aspect of the invention, the thermal management circuit is configured to operate according to a heat recovery mode in which:
    • the second redirection device is configured to redirect the heat transfer fluid from the second heat exchanger to the dual-fluid heat exchanger via the second branch branch and prevent the circulation of the heat transfer fluid to the second radiator, and • the first device redirection is configured to redirect the heat transfer fluid from the fourth junction point to the dual-fluid heat exchanger and prevent the circulation of the heat transfer fluid to the first radiator.
    The invention also relates to a motor vehicle comprising such a thermal management circuit.
    Other characteristics and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and nonlimiting example, and of the appended drawings among which:
    • Figure 1 shows a schematic representation of a thermal management circuit according to a first embodiment, • Figures 2a to 2c show the thermal management circuit of Figure 1 according to different modes of operation.
    In the various figures, identical elements have the same reference numbers.
    The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the characteristics apply only to a single embodiment. Simple features of different embodiments can also be combined and / or interchanged to provide other embodiments.
    In the present description, it is possible to index certain elements or parameters, such as for example first element or second element as well as first parameter and second parameter or even first criterion and second criterion etc. In this case, it is a simple indexing to differentiate and name elements or parameters or criteria that are similar but not identical. This indexing does not imply a priority of an element, parameter or criterion over another and one can easily interchange such names without departing from the scope of this description. This indexing does not imply an order in time for example to assess this or that criterion.
    In the present description, the term "upstream" means that one element is placed before another with respect to the direction of circulation of a fluid. Conversely, by "downstream" is meant that one element is placed after another with respect to the direction of circulation of the fluid.
    Figure 1 shows a thermal management circuit 1 of a hybrid or electric vehicle. This thermal management circuit 1 (partially shown) comprises a first reversible air conditioning loop A in which a refrigerant fluid circulates and comprising a two-fluid heat exchanger 7 arranged jointly on a second circulation loop B of a heat transfer fluid. By invertible, it is meant that this air conditioning loop can operate in a cooling mode in order to cool the air intended for the passenger compartment and in a heat pump mode in order to heat the air intended for the passenger compartment. This first reversible air conditioning loop A can be of any type known to those skilled in the art.
    The first reversible air conditioning loop A may in particular comprise downstream of the two-fluid heat exchanger 7 an expansion device 17. This expansion device 17 can allow a loss of pressure of the refrigerant fluid in order to cool the heat transfer fluid of the second loop circulation B at the two-fluid heat exchanger 7. This expansion device 17 can also be bypassed or allow the refrigerant to pass without loss of pressure in order to heat the heat transfer fluid of the second circulation loop B at the level of l two-fluid heat exchanger 7.
    The second circulation loop B more particularly comprises a main loop B1 and a secondary loop B2 connected in parallel with one another.
    The main loop B1 notably includes a first pump 3, a first heat exchanger 5 and the two-fluid heat exchanger 7. The first heat exchanger 5 can more particularly be a heat exchanger allowing the exchange of heat energy with the batteries .
    The main loop B1 also comprises a first branch branch B3 and a first redirection device 31.
    The first branch branch B 3 comprises a first radiator 13 intended to be traversed by an external air flow 100 and connected in parallel with the two-fluid heat exchanger 7. More specifically, the first branch branch B3 is connected between a first junction point 21 disposed upstream of the dual-fluid heat exchanger 7 and a second junction point 22 disposed downstream of the dual-fluid heat exchanger 7.
    The first redirection device 31 allows the redirection of the heat-transfer fluid coming from the first heat exchanger 5 to the dual-fluid heat exchanger 7 or to the first radiator 13. This first redirection device 31 can in particular be a three-way valve arranged at the first junction point 21.
    The secondary loop B2, for its part, comprises a second pump 9, a second heat exchanger 11 and a second radiator 15 intended to be traversed by an external air flow 100. The second heat exchanger 11 may more particularly be a heat exchanger heat allowing the exchange of heat energy with the electric motor.
    The first 13 and the second heat exchanger 15 can for example be arranged side by side on the front face of the motor vehicle.
    The main loop B1 and the secondary loop B2 are connected to each other by a second branch branch B4 and a third branch branch B5.
    The second branch branch B4 more particularly connects a third junction point 23 to a fourth junction point 24. The third junction point 23 is disposed on the secondary loop B2 upstream of the second radiator 15, between said second radiator 15 and the second heat exchanger 11. The fourth junction point 24 is in turn disposed on the main branch B1 downstream of the first heat exchanger 5, between said first heat exchanger 5 and the first junction point 21.
    The third branch branch B5 more particularly connects a fifth junction point 25 to a sixth junction point 26. The fifth junction point 25 is disposed on the secondary loop B2 downstream of the second radiator 15, between said second radiator 15 and the second heat exchanger 11. The sixth junction point 26 is in turn disposed on the first branch branch B3 downstream of the first radiator 13, between said first radiator 13 and the second junction point
    21.
    The second circulation loop B also includes a second redirection device 32 for the heat transfer fluid. This second redirection device 32 allows the redirection of the heat transfer fluid coming from the second heat exchanger 11 to the second radiator 15 or to the two-fluid heat exchanger 7 via the second branch branch B4. This second redirection device 32 can in particular be a three-way valve disposed at the third junction point
    23.
    In the example of FIG. 1, the first pump 3 is arranged upstream of the first heat exchanger 5, between said first heat exchanger 5 and the second junction point 22. It is however quite possible to imagine a another positioning of this first pump 3 for example downstream of the first heat exchanger 5, between said first heat exchanger 5 and the fourth junction point 24.
    Similarly, in the example of FIG. 1, the second pump 9 is arranged upstream of the second heat exchanger 11, between said second heat exchanger 11 and the fifth junction point 25. It is however entirely possible to imagine another positioning of this second pump 9, for example downstream of the second heat exchanger 11, between said second heat exchanger 11 and the third junction point 23.
    The thermal management circuit 1 can in particular operate according to different operating modes illustrated in FIGS. 2a to 2c. In these figures, only the elements in which the heat transfer fluid circulates are shown. In addition, arrows indicate the direction of circulation of the heat transfer fluid.
    a) First cooling mode:
    The thermal management circuit 1 can in particular be configured to operate according to a first cooling mode illustrated in FIG. 2a.
    In this first cooling mode, the first redirection device 3f is configured to on the one hand redirect the heat transfer fluid coming from the first heat exchanger 5 to the dual-fluid heat exchanger 7 and on the other hand prevent the circulation of the fluid coolant in the first branch branch B3.
    The second redirection device 32 is in turn configured to on the one hand redirect the heat transfer fluid coming from the second heat exchanger 11 to the second radiator 15 and on the other hand prevent the circulation of the heat transfer fluid in the second branch branch B4.
    Within the main loop B1, the heat transfer fluid set in motion by the first pump 3 circulates in the first heat exchanger 5 and in the two-fluid heat exchanger 7. At the level of the first heat exchanger 5, the heat transfer fluid recovers heat energy by cooling your batteries, for example. At the two-fluid heat exchanger 7, the heat transfer fluid transfers this heat energy to the refrigerant of your first reversible chmatization plug A.
    Within the secondary spark plug B2, ie heat transfer fluid set in motion by the second pump 9 circulates in the second heat exchanger 11 and in the first radiator f5 At the second heat exchanger 11 the heat transfer fluid recovers heat energy by cooling for example, the electric motor. At the second radiator 15, the heat transfer fluid transfers this heat energy to the external air flow f00.
    This first cooling mode allows for example to independently cool the batteries at the first heat exchanger 5 and the electric motor at the second heat exchanger 11. The main loop B1 and the secondary loop B2 remain independent of one another. 'other. The heat energy from the batteries is transferred to the first air conditioning loop A and that from the electric motor to the second radiator 13. The first air conditioning loop A can operate either in heat pump mode or in air conditioning mode.
    b) Second cooling mode:
    The thermal management circuit 1 can also be configured to operate according to a second cooling mode illustrated in FIG. 2b.
    In this second cooling mode, the first redirection device 31 is configured on the one hand to redirect the heat transfer fluid coming from the first heat exchanger 5 to the first radiator 13 and on the other hand to prevent the circulation of the heat transfer fluid in the bifluid heat exchanger.
    The second redirection device 32 is in turn configured to on the one hand redirect the heat transfer fluid coming from the second heat exchanger 11 to the second radiator 15 and on the other hand prevent the circulation of the heat transfer fluid in the second branch branch B4.
    Within the main loop B1, the heat transfer fluid set in motion by the first pump 3 circulates in the first heat exchanger 5 and is redirected to the first radiator 13. At the first heat exchanger 5, the heat transfer fluid recovers from heat energy by cooling the batteries, for example. This heat energy is then released into the external air flow 100 at the first radiator 13.
    Within the secondary loop B2, the heat transfer fluid set in motion by the second pump 9 circulates in the second heat exchanger 11 and in the second radiator 15. At the second heat exchanger 11 the heat transfer fluid recovers energy calorific by cooling for example the electric motor. This heat energy is then released into the external air flow 100 at the second radiator 15.
    This second cooling mode also makes it possible to independently cool the batteries at the first heat exchanger 5 and the electric motor at the second heat exchanger 11. The heat energy from the batteries and the electric motor is transferred respectively to the first 13 and the second radiator. The main loop B1 and the secondary loop B2 remain independent of each other. As for the first air conditioning loop A, it can be switched off or can operate in heat pump mode or in air conditioning mode independently of the second circulation loop B.
    c) Heat recovery mode:
    The thermal management circuit 1 can also be configured to operate according to a heat recovery mode illustrated in FIG. 2c.
    In this heat recovery mode, the second redirection device 32 is configured to on the one hand redirect the heat transfer fluid coming from the second heat exchanger 11 to the dual-fluid heat exchanger 7 via the second branch branch B4 and d on the other hand, preventing the circulation of the heat transfer fluid towards the second radiator 15.
    The first redirection device 31 is in turn configured to redirect the heat transfer fluid from the fourth junction point 24, that is to say both from the first heat exchanger 5 and from the second branch B4 bypass, to the dual fluid heat exchanger 7 and on the other hand prevent the circulation of the heat transfer fluid to the first radiator 13.
    Within the secondary loop B2, the heat transfer fluid set in motion by the second pump 9 circulates in the second heat exchanger 11 and is redirected to the dual-fluid heat exchanger 7 via the second branch branch B4. At the second heat exchanger 11 the heat transfer fluid recovers heat energy by cooling for example the electric motor.
    Within the main loop B1, the heat transfer fluid set in motion by the first pump 3 circulates in the first heat exchanger 5. At the fourth junction point 24 the heat transfer fluid from the first heat exchanger 5 mixes with that coming from the second heat exchanger 11 before arriving at the two-fluid heat exchanger 7. At the first heat exchanger 5, the heat transfer fluid recovers heat energy by cooling, for example, the batteries.
    At the two-fluid heat exchanger 7, the heat transfer fluid coming from both the first 5 and the second 11 heat exchanger transfers heat energy to the first air conditioning loop A.
    At the outlet of the two-fluid heat exchanger 7, part of the heat transfer fluid returns to the secondary loop B2 via the third branch branch B5.
    This heat recovery mode makes it possible, for example, to jointly cool the batteries at the level of the first heat exchanger 5 and the electric motor at the level of the second heat exchanger 11. The heat energy of the batteries and of the electric motor is transferred in full to the two-fluid heat exchanger 7 so as to be transmitted to the first air conditioning loop A. The first air conditioning loop A operates in heat pump mode in order to use the heat energy recovered from the second circulation loop B to warm the passenger compartment.
    As shown in FIG. 1, the main loop B1 can also include an electric heating device 19 for the heat transfer fluid. This electric heating device 19, for example a resistor with a positive temperature coefficient, is arranged upstream of the first heat exchanger 5, between the first heat exchanger 5 and the heat exchanger 7. In the example illustrated in Figure 1, the electric heating device 19 is disposed between the second junction point 22 and the first heat exchanger 5. This electric heating device 19 can for example be used to heat the heat transfer fluid upstream of the first heat exchanger 5 in order, for example, to allow the batteries to reach their optimum operating temperature, in particular in the case of use in cold weather.
    Thus, it can be seen that due to its particular architecture, the thermal management circuit 1 allows operation according to different operating modes, a decoupling of thermal management between the main loop B1 and the secondary loop B2 of the second circulation loop. B. In addition, these different operating modes can be implemented by means of a limited number of valves, whether stop valves or three-way valves, which makes it possible to limit production costs.
    权利要求:
    Claims (7)
    [1" id="c-fr-0001]
    1. Thermal management circuit (1) for a hybrid or electric vehicle, said thermal management circuit (1) comprising a first reversible air conditioning loop (A) in which a refrigerant circulates and comprising a dual-fluid heat exchanger (7) arranged jointly on a second circulation loop (B) of a heat transfer fluid, the second circulation loop (B) of a heat transfer fluid comprising:
    • a main loop (Bl) comprising a first pump (3), a first heat exchanger (5) and the dual-fluid heat exchanger (7), the main loop (Bl) further comprising:
    ° a first branch branch (B 3) comprising a first radiator (13) intended to be traversed by an external air flow (100) and connected in parallel with the two-fluid heat exchanger (7) between a first point of junction (21) disposed upstream of said dual-fluid heat exchanger (7) and a second junction point (22) disposed downstream of said dual-fluid heat exchanger (7), ° a first redirection device (31) of the heat transfer fluid from from the first heat exchanger (5) to the dual-fluid heat exchanger (7) or to the first radiator (13), • a secondary loop (B2) comprising a second pump (9), a second heat exchanger (11) and a second radiator (15) intended to be traversed by an external air flow (100), the main loop (B1) and the secondary loop (B2) being connected to each other by:
    • a second branch branch (B4) connecting a third junction point (23) disposed on the secondary loop (B2) upstream of the second radiator (15), between said second radiator (15) and the second heat exchanger (11 ) and a fourth junction point (24) disposed on the main branch (Bl) downstream of the first heat exchanger (5), between said first heat exchanger (5) and the first junction point (21), • a third branch branch (B5) connecting a fifth junction point (25) disposed on the secondary loop (B2) downstream of the second radiator (15), between said second radiator (15) and the second heat exchanger (11) and a sixth junction point (26) disposed on the first branch branch (B3) downstream of the first radiator (13), between said first radiator (13) and the second junction point (21), the second circulation loop ( B) a heat transfer fluid comprising a second di redirection device (32) of the heat transfer fluid from the second heat exchanger (11) to the second radiator (15) or to the dual-fluid heat exchanger (7) via the second branch branch (B4).
    [2" id="c-fr-0002]
    2. Thermal management circuit (1) according to claim 1 characterized in that the first redirection device (31) is a three-way valve disposed at the first junction point (21).
    [3" id="c-fr-0003]
    3. Thermal management circuit (1) according to one of the preceding claims, characterized in that the second redirection device (32) is a three-way valve arranged at the third junction point (23).
    [4" id="c-fr-0004]
    4. Thermal management circuit (1) according to one of the preceding claims, characterized in that the main loop (Bl) comprises an electric heating device (19) of the heat transfer fluid disposed upstream of the first heat exchanger (5) .
    [5" id="c-fr-0005]
    5. Thermal management circuit (1) according to one of claims 1 to 4, characterized in that it is configured to operate according to a first cooling mode in which:
    • the first redirection device (31) is configured to redirect the heat transfer fluid from the first heat exchanger (5) to the dual-fluid heat exchanger (7) and prevent the circulation of the heat transfer fluid in the first branch branch ( B3), and • the second redirection device (32) is configured to redirect the heat transfer fluid from the second heat exchanger (11) to the second radiator (15) and prevent the circulation of the heat transfer fluid in the second branch branch (B4).
    [6" id="c-fr-0006]
    6. Thermal management circuit (1) according to one of claims 1 to 4, characterized in that it is configured to operate according to a second cooling mode in which:
    The first redirection device (31) is configured to redirect the heat transfer fluid from the first heat exchanger (5) to the first radiator (13) and prevent the circulation of the heat transfer fluid in the two-fluid heat exchanger, and the second redirection device (32) is configured to redirect the heat transfer fluid from the second heat exchanger (11) to the second radiator (15) and prevent the circulation of the heat transfer fluid in the second branch branch (B4).
    [7" id="c-fr-0007]
    7. Thermal management circuit (1) according to one of claims 1 to 4, characterized in that it is configured to operate according to a heat recovery mode in which:
    • the second redirection device (32) is configured to redirect the heat transfer fluid from the second heat exchanger (11) to the dual-fluid heat exchanger (7) via the second branch branch (B4) and prevent the circulation of the heat transfer fluid to the second radiator (15), and • the first redirection device (31) is configured to redirect the heat transfer fluid from the fourth junction point (24) to the dual-fluid heat exchanger (7) and prevent the circulation of the heat transfer fluid to the first radiator (13).
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    同族专利:
    公开号 | 公开日
    WO2019220036A1|2019-11-21|
    FR3081124B1|2020-05-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20120225341A1|2011-03-03|2012-09-06|Gregory Major|Thermal management of cabin and battery pack in hev/phev/bev vehicles|
    CN102941791A|2012-11-08|2013-02-27|上海汽车集团股份有限公司|Integrated thermal cycling system of electric vehicle|
    US20170106725A1|2015-10-19|2017-04-20|Hyundai Motor Company|Battery cooling system for a vehicle|
    EP3260319A1|2016-06-20|2017-12-27|Hyundai Motor Company|Heat pump system for vehicle|
    WO2018069629A1|2016-10-13|2018-04-19|Hutchinson|Thermal conditioning facility for the interior and/or at least one part of a motor vehicle|
    CN106585414A|2016-12-27|2017-04-26|上海思致汽车工程技术有限公司|Intelligent multi-loop electric automobile cooling system|FR3112718A1|2020-07-27|2022-01-28|Valeo Systèmes Thermique|Thermal management device for an electric or hybrid motor vehicle.|
    FR3091510B1|2019-01-09|2021-12-03|Alstom Transp Tech|Heat exchange system, heat exchange assembly comprising such a system, rail vehicle and associated method|
    法律状态:
    2019-05-31| PLFP| Fee payment|Year of fee payment: 2 |
    2019-11-22| PLSC| Publication of the preliminary search report|Effective date: 20191122 |
    2020-05-30| PLFP| Fee payment|Year of fee payment: 3 |
    2021-05-31| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1854049|2018-05-15|
    FR1854049A|FR3081124B1|2018-05-15|2018-05-15|THERMAL MANAGEMENT CIRCUIT OF A HYBRID OR ELECTRIC VEHICLE|FR1854049A| FR3081124B1|2018-05-15|2018-05-15|THERMAL MANAGEMENT CIRCUIT OF A HYBRID OR ELECTRIC VEHICLE|
    PCT/FR2019/051047| WO2019220036A1|2018-05-15|2019-05-07|Circuit for the thermal management of a hybrid or electric vehicle|
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