MULTI-POSITION VALVE HEATING / COOLING SYSTEM FOR AN ELECTRIC POWERTRAIN VEHICLE

Abstract

A heating / cooling system (IV) is fitted to a vehicle (V) comprising an electric power unit (PMU), a main battery (MB), a converter (CV), and a passenger compartment (H), and includes: - a heating / cooling circuit (HC) in which a heat transfer fluid circulates and comprising a first part (P1) coupled to the converter (CV) and power unit (PMU), and second (P2) and third (P3) parts coupled respectively to the passenger compartment (H) and the main battery (MB), and - a valve (VC) connected to the first (P1), second (P2), and third (P3) parts, and capable of selectively assuming four positions in which it allows isolated operation of at least one of the first (P1), second (P2), and third (P3) parts and / or coupling between at least two of these (P1, P2, P3) to heat / cool the passenger compartment (H) and / or the main battery (MB), and / or cool the converter (CV) and motive machine (MME).Figure 1.

Description

Title of the invention: HEATING / COOLING INSTALLATION WITH MULTI-POSITION VALVE, FOR AN ELECTRIC GMP VEHICLE Technical field of the invention

[0001] The invention relates to vehicles comprising an electric powertrain and a passenger compartment, and more specifically to heating / cooling installations which are responsible for heating / cooling equipment and the air in the passenger compartment in such vehicles. State of the art

[0002] Certain vehicles, possibly land-based (and for example of the automobile type), include:

[0003] - a so-called all-electric powertrain (or GMP), and therefore comprising at least at least one electric motor capable of providing engine torque to move them from electrical energy stored in a main (or power) battery,

[0004] - a converter capable of converting electrical energy stored in this main battery, for example to supply electrical energy to an on-board network,

[0005] - a passenger compartment with controlled aerothermal heat pump, and

[0006] - a heating / cooling installation responsible for heating / cooling the air of the passenger compartment and equipment (including the electric motor, the main battery and the converter).

[0007] Some of these heating / cooling installations comprise a heating / cooling circuit in which a heat transfer fluid circulates and which comprises a first part coupled to the converter and to the prime mover, and second and third parts coupled respectively to the passenger compartment and to the main battery.

[0008] The first part of the heating / cooling circuit, dedicated to the converter and the prime mover, usually includes:

[0009] - a first heat transfer fluid pump for circulating the latter locally,

[0010] - a first temperature probe for measuring the local temperature of the fluid ca carrier, and

[0011] - a radiator for cooling the local heat transfer fluid.

[0012] The second part of the heating / cooling circuit, dedicated to the passenger compartment, usually includes:

[0013] - a first two-way type solenoid valve allowing it to be isolated or couple to the first part and / or the third part,

[0014] - a second heat transfer fluid pump to circulate the latter locally,

[0015] - a second temperature probe for measuring the local temperature of the fluid heat transfer fluid,

[0016] - a heating device (usually a heating resistor) for heating locally the heat transfer fluid, and

[0017] - a first heat exchanger for cooling / heating air intended for the passenger compartment by exchange with the heat transfer fluid.

[0018] The third part of the heating / cooling circuit, dedicated to the main battery, usually includes:

[0019] - a second three-way type solenoid valve allowing it to be isolated or couple to the first part and / or to the second part,

[0020] - a third heat transfer fluid pump to circulate the latter locally,

[0021] - a third temperature probe for measuring the local temperature of the fluid ca carrier, and

[0022] - a second heat exchanger for locally cooling the heat transfer fluid by exchange with a refrigerant from an air conditioning compressor.

[0023] By controlling both valves, the second heat exchanger can be used to cool the converter and the prime mover, and / or the heater to heat the main battery.

[0024] This heating / cooling installation comprises numerous pieces of equipment which must be coupled together by numerous conduits, which requires a significant quantity of heat transfer fluid which proves to be penalizing in terms of weight. In addition, this heating / cooling installation proves to be very complex in terms of architecture and bulky, and therefore difficult to install in a vehicle. Finally, this heating / cooling installation proves to be expensive to produce, install and maintain.

[0025] The invention therefore aims in particular to improve the situation. Presentation of the invention

[0026] It proposes in particular for this purpose a heating / cooling installation, on the one hand, intended to equip a vehicle comprising an electric motor, a main battery suitable for supplying this motor with electrical energy, a converter suitable for converting electrical energy stored in this main battery, and a passenger compartment, and, on the other hand, comprising a heating / cooling circuit in which a heat transfer fluid circulates and comprising a first part coupled to the converter and motor, and second and third parts coupled respectively to the passenger compartment and to the main battery.

[0027] This heating / cooling installation is characterized by the fact that it also comprises a valve connected to the first, second and third parts, and capable of selectively taking one of at least four positions in which it allows isolated operation of at least one of the first, second and third parts and / or coupling between at least two of the first, second and third parts to heat / cool the passenger compartment and / or the main battery, and / or cool the converter and prime mover.

[0028] The use of this single multi-position valve makes it possible to significantly reduce the number of conduits interconnecting the equipment of the installation (heating / cooling) and in which the heat transfer fluid circulates, and therefore to significantly reduce the quantity of heat transfer fluid and consequently the weight of the heating / cooling circuit, but also to simplify the architecture of the installation and the mounting of the latter in a vehicle, as well as to reduce the size of the heating / cooling circuit.

[0029] The heating / cooling installation according to the invention may include other characteristics which may be taken separately or in combination, and in particular:

[0030] - its valve can be capable of selectively taking, on the one hand, a first position coupling the second and third parts to heat / cool the passenger compartment and / or the main battery, on the second hand, a second position in which the heat transfer fluid circulates in the second part to heat the passenger compartment and / or in the first part to cool the prime mover and the converter, on the third hand, a third position coupling the first, second and third parts in pairs to heat the main battery, and, on the fourth hand, a fourth position coupling the first and second parts to heat the passenger compartment;

[0031] - in the presence of the first option, its valve may comprise first and second inlets and a first outlet connected to the first part, a third inlet and a second outlet connected to the second part, and a fourth inlet and a third outlet connected to the third part. In this case the valve can be arranged, on the one hand, in the first position so as to couple the first inlet to the first outlet, the third inlet to the third outlet and the fourth inlet to the second outlet, on the other hand, in the second position so as to couple the first inlet to the first outlet and the third inlet to the second outlet, on the other hand, in the third position so as to couple the second inlet to the second outlet, the third inlet to the third outlet and the fourth inlet to the first outlet, and, on the other hand, in the fourth position so as to couple the second inlet to the second outlet and the third inlet to the first outlet;

[0032] - it can comprise a first pump suitable for circulating the ca- fluid carrier in the first part, and a second pump suitable for circulating the heat transfer fluid in the second part and the third part;

[0033] - in the presence of the last option and the last sub-sub-option, the first pump may be interposed between the first outlet and the first part, and the second pump may be interposed between the second outlet and the second part;

[0034] - also in the presence of the last sub-option, it can include a housing degassing coupled to the first part in order to allow degassing of the latter. In this case, its valve may comprise a degassing inlet connected to this degassing box and suitable for being coupled to the second outlet in order to allow degassing of the second part and / or the third part;

[0035] - the first part may comprise a radiator suitable for cooling the fluid ca carrier before it reaches the valve;

[0036] - the second part may comprise, on the one hand, a heating device suitable for heating the heat transfer fluid leaving the valve and entering the second part, on the second hand, a first heat exchanger suitable for cooling the heat transfer fluid leaving the valve and entering the second part, and, on the third hand, a second heat exchanger installed downstream of the first exchanger, in which circulates the heat transfer fluid having passed through the latter and suitable for heating / cooling air intended for the passenger compartment by exchange with the heat transfer fluid.

[0037] The invention also provides a vehicle, possibly of the automobile type, and comprising:

[0038] - an electric motor, a main battery suitable for supplying electrical energy this motive machine,

[0039] - a converter capable of converting electrical energy stored in the battery main,

[0040] - a cabin,

[0041] - and a heating / cooling installation of the type presented above. Brief description of the figures

[0042] Other characteristics and advantages of the invention will appear on examining the detailed description below, and the appended drawings, in which:

[0043] [Fig-1] schematically and functionally illustrates an example of the embodiment of a vehicle comprising a passenger compartment, an electric powertrain associated with a main battery, also associated with a converter, and a heating / cooling installation according to the invention,

[0044] [Fig.2] schematically and functionally illustrates an exemplary embodiment of a heating / cooling installation according to the invention, with its multi-position valve placed in a first position,

[0045] [Fig.3] schematically and functionally illustrates an exemplary embodiment of a heating / cooling installation according to the invention, with its multi-position valve placed in a second position,

[0046] [Fig.4] schematically and functionally illustrates an exemplary embodiment of a heating / cooling installation according to the invention, with its multi-position valve placed in a third position, and

[0047] [Fig.5] schematically and functionally illustrates an exemplary embodiment of a heating / cooling installation according to the invention, with its multi-position valve placed in a fourth position. Detailed description of the invention

[0048] The invention aims in particular to propose a heating / cooling installation IV with simplified architecture and intended to equip a vehicle V with an electric powertrain (or GMP).

[0049] In the following, it is considered, by way of non-limiting example, that the vehicle V is of the automobile type. It is for example a car, as illustrated in [Fig.l]. But the invention is not limited to this type of vehicle. It relates in fact to any type of vehicle (land, sea (or river) or air) comprising an electric powertrain (or GMP) (and therefore comprising at least one electric motor capable of providing engine torque to move it), a main battery capable of supplying electrical energy to this electric motor, a converter capable of converting electrical energy stored in this main battery, and a passenger compartment.

[0050] [Fig.l] schematically shows a vehicle V comprising a passenger compartment H, an electric GMP transmission chain (and therefore comprising at least one electric MME motor), a service battery BS, a main battery BP, a converter CV, and a heating / cooling installation IV according to the invention.

[0051] The service battery BS is responsible for supplying electrical energy to an on-board network RB of the vehicle V, in addition to that supplied by the converter CV powered by the main (or power) battery BP via a main electrical circuit, and sometimes instead of this converter CV. For example, this service battery BS can be arranged in the form of a very low voltage type battery (typically 12 V, 24 V or 48 V). It is rechargeable at least by the converter CV. It is considered in the following, by way of non-limiting example, that the service battery BS is of the 12 V Lithium-ion type.

[0052] The on-board network RB is an electrical power supply network to which electrical (or electronic) equipment (or components) that consume energy are coupled. electric.

[0053] The main electrical circuit (or “high voltage” or “power”) is connected, on the one hand, to the main battery BP via an interface device, and, on the other hand, to electronic equipment, such as for example the CV converter and the MME prime mover. It also allows the main battery BP to be recharged by an external power source temporarily coupled to the vehicle V.

[0054] The transmission chain has a GMP which is purely electric and therefore which comprises, in particular, in addition to its (electric) driving machine MME, a driving shaft AMI, and a transmission shaft ATI. Here, the term "electric driving machine" means an electric machine arranged so as to provide torque to move the vehicle V, as well as possibly to recover recuperative torque.

[0055] The prime mover MME (here an electric motor) is coupled to the main battery BP via the main electrical circuit, in order to be supplied with electrical energy, as well as possibly to supply this main battery BP with electrical energy, for example during a regenerative braking phase. It is coupled to the motor shaft AMI, to provide it with torque by rotational drive. This motor shaft AMI is here coupled to a reducer RDI which is also coupled to the transmission shaft ATI, itself coupled to a first train T1 (here of wheels), preferably via a differential DV.

[0056] This first train T1 is here located in the front part PVV of the vehicle V. But in a variant this first train T1 could be the one which is here referenced T2 and which is located in the rear part PRV of the vehicle V.

[0057] The CV converter is, for example, of the DC / DC type (“Direct Current / Direct Current”). It is therefore responsible for converting a direct current from a first voltage to a second voltage.

[0058] This CV converter is also responsible, here, during the driving phases of the vehicle V for converting part of the electric current stored in the main battery BP to supply converted electric current to the on-board network RB and the service battery BS (to recharge it). It is also, here, electrically coupled, via the main electrical circuit, to the charging connector of the vehicle V which, during a charging phase of the main battery BP, is, here, intended to be temporarily coupled to a power source external to the vehicle V, via a charging cable.

[0059] It will be noted, as illustrated non-limitingly in [Fig.l], that the converter CV can be part of an internal charger CH also comprising a computer responsible, at least, for controlling the recharges of the main battery BP.

[0060] The main battery (or power or traction battery) BP may, for example, comprise electrical energy storage cells, possibly electrochemical (for example of the lithium-ion (or Li-ion) or Ni-Mh or Ni-Cd type). Also for example, the main BP battery can be of low voltage type (typically 450 V for illustration). But it could be of medium voltage or high voltage type.

[0061] It will also be noted that in the example illustrated non-limitingly in [Fig. 1] the vehicle V also comprises a distribution box BD to which the service battery BS, the converter CV and the on-board network RB are coupled. This distribution box BD is responsible for distributing in the on-board network RB the electrical energy which is produced by the converter CV or stored in the service battery BS, for the power supply of the electrical components (or equipment) coupled to the on-board network RB, according to power supply requests received.

[0062] As illustrated in Figures 1 to 5, the heating / cooling installation IV according to the invention comprises a heating / cooling circuit CR in which a heat transfer fluid circulates and comprising first PI, second P2 and third P3 parts and a (multi-position) valve VC.

[0063] The first part PI is coupled to the CV converter and to the MME motor machine, in order to cool them when necessary.

[0064] The second part P2 is coupled to the passenger compartment H in order to supply it with treated air.

[0065] The third part P3 is coupled to the main battery BP, in order to heat it or cool when needed.

[0066] The (multi-position) valve VC is connected to each of the first PI, second P2 and third P3 parts. In addition, it is arranged to selectively take one of at least four positions in which it allows isolated operation of at least one of the first PI, second P2 and third P3 parts and / or coupling between at least two of the first PI, second P2 and third P3 parts to heat / cool the passenger compartment H and / or the main battery BP, and / or to cool the converter CV and the prime mover MME.

[0067] Here, the term "isolated operation" means an operation in which a portion of the heat transfer fluid circulates only in one portion Pj (with j = 1 to 3) in a closed circuit, independently of what happens in the other two portions Pj' (j' j). Furthermore, here, the term "coupling" means the fact that at least a portion of the heat transfer fluid circulates in at least two portions Pj (with j = 1 to 3) temporarily placed in communication to constitute a closed circuit, independently of what happens in any other portion Pj' (j' j).

[0068] Furthermore, here, “selectively take” is understood to mean being placed in a position which is chosen either by a user of the vehicle V by action on at least one control member or selection of a menu displayed on a screen, for example a central instrument panel installed in or on the dashboard of the vehicle V, or by a computer, such as for example the supervision computer CS which supervises the func- operation of the installation IV.

[0069] Thanks to the use of this single valve VC offering at least four different positions, the number of conduits interconnecting equipment of the (heating / cooling) installation IV and in which the heat transfer fluid circulates can be significantly reduced, which makes it possible to significantly reduce the quantity of heat transfer fluid and therefore the weight of the heating / cooling circuit CR. In addition, this makes it possible to reduce the number of equipment of the installation IV and the complexity of the architecture of the latter (IV), but also its manufacturing cost. In addition, this makes it possible to reduce the size of the heating / cooling circuit CR. Finally, the installation IV is easier to install and maintain in a vehicle, which makes it possible to reduce the cost of the latter.

[0070] For example, and as illustrated non-limitingly in Figures 2 to 5, the valve VC can be arranged so as to selectively take:

[0071] - a first position which couples the second P2 and third P3 parts for heat or cool (heat / cool) the passenger compartment H and / or the main battery BP (see [Fig.2]), or

[0072] - a second position in which the heat transfer fluid circulates in the second part P2 to heat the passenger compartment H and / or in the first part PI to cool the driving machine MME and the CV converter (see [Fig.3]), or

[0073] - a third position which couples two by two the first PI, second P2 and third P3 parts for heating the main battery BP (see [Fig.4]), or

[0074] - a fourth position which couples the first PI and second P2 parts for heat the passenger compartment H (see [Fig.5]).

[0075] For example, the selective placement of the valve VC in one of its positions can be supervised by the supervision computer CS.

[0076] As illustrated in [Fig.2], the first position of the valve VC can make it possible to operate the second P2 and third P3 parts in a coupled and closed circuit to heat the passenger compartment H and / or the main battery BP by heating a part of the heat transfer fluid by means of a heating device DC forming for example a part of the second part P2, and / or to cool the main battery BP by cooling a part of the heat transfer fluid by means of a first heat exchanger EC1 forming for example a part of the second part P2. It will be noted that the heating of the passenger compartment H is done with air heated by heat exchange at a second heat exchanger EC2 in which the heated part of the heat transfer fluid circulates and forming for example a part of the second part P2, while the heating of the main battery BP is done exclusively by means of the heated part of the heat transfer fluid.

[0077] This first position of the VC valve can also, possibly, make it possible to make operate the first part PI in a closed circuit to cool the driving machine MME and the converter CV by cooling part of the heat transfer fluid by means of a radiator RI forming part of the first part PI. It will be understood that this radiator RI is suitable for cooling the heat transfer fluid before it reaches the valve VC, for example on the order of the supervision computer CS.

[0078] It will be understood that in the example illustrated non-limitingly in Figures 2 to 5:

[0079] - the DC heating device is suitable for heating the heat transfer fluid which leaves the the VC valve and enters the second part P2,

[0080] - the first heat exchanger EC1 is suitable for cooling the heat transfer fluid which comes out of the valve VC and enters the second part P2, and is installed downstream of the DC heating device (although it could be installed upstream of the latter (DC)), and

[0081] - the second heat exchanger EC2 is installed downstream of the first exchanger EC1, allows the circulation of the heat transfer fluid having passed through the latter (EC1) and is suitable for heating / cooling the air which is intended for the passenger compartment H by exchange with the heat transfer fluid having just been heated by the DC heating device or having just been cooled by the first exchanger EC1.

[0082] For example, the respective operations of the heating device DC, first heat exchanger EC1 and second heat exchanger EC2 can be supervised by the supervision computer CS.

[0083] As illustrated in [Fig. 3], the second position of the valve VC can make it possible to operate the second part P2 in a closed circuit to heat the passenger compartment H by heating a part of the heat transfer fluid by means of a heating device DC forming for example a part of the second part P2, then heating the air intended for the passenger compartment H by exchanging calories at the level of a second heat exchanger EC2 in which the heated part of the heat transfer fluid circulates and forming for example a part of the second part P2.

[0084] This second position of the valve VC can also, possibly, make it possible to operate the first part PI in a closed circuit to cool the driving machine MME and the converter CV by cooling a part of the heat transfer fluid by means of the radiator RI forming part, here, of the first part PI.

[0085] As illustrated in [Fig.4], the third position of the valve VC can make it possible to operate the first PI, second P2 and third P3 parts in a coupled and closed circuit to heat the main battery BP by heating the heat transfer fluid by means of a DC heating device forming for example part of the second part P2 and / or calories captured at the level of the driving machine MME and the converter CV.

[0086] As illustrated in [Fig.5], the fourth position of the valve VC can make it possible to operate the first PI and second P2 parts in a coupled and closed circuit to heat the passenger compartment H by heating a part of the heat transfer fluid by means of a DC heating device forming for example part of the second part P2 and / or calories captured at the level of the driving machine MME and the converter CV.

[0087] In order to enable at least the four positions described above to be obtained, the valve VC may comprise at least four inputs Ek (k = 1 to 4) and at least three outputs Sm (m = 1 to 3), as illustrated non-limitingly in Figures 2 to 5.

[0088] The first El (k = 1) and second E2 (k = 2) inputs and the first output SI (m = 1) are connected to the first part PL

[0089] The third input E3 (k = 3) and the second output S2 (m = 2) are connected to the second part P2.

[0090] The fourth input E4 (k = 4) and the third output S3 (m = 3) are connected to the third part P3.

[0091] In addition, the VC valve is arranged:

[0092] - in the first position so as to couple the first input El to the first output SI (to put the first part PI in closed circuit via the radiator RI whose output is here coupled to the first input El), the third input E3 to the third output S3 and the fourth input E4 to the second output S2 (to put the second P2 and third P3 parts in coupled and closed circuit),

[0093] - in the second position so as to couple the first input El to the first output SI (to put the first part PI in closed circuit via the radiator RI), and the third input E3 to the second output S2 (to put the second part P2 in closed circuit),

[0094] - in the third position so as to couple the second input E2 to the second output S2, the third input E3 to the third output S3 and the fourth input E4 to the first output SI (to put the first PI, second P2 and third P3 parts in coupled and closed circuit, without passing through the radiator RI), and

[0095] - in the fourth position so as to couple the second input E2 to the second output S2 and the third input E3 to the first output SI (to put the first PI and second P2 parts in coupled and closed circuit, without passing through the radiator RI).

[0096] It will be noted that when an input Ek or an output Sm is not used in a position of the valve VC, this means that it is disconnected (or sealed).

[0097] For example, and as illustrated non-limitingly in Figures 2 to 5, the installation IV may comprise first PF1 and second PF2 heat transfer fluid pumps. In this case, the first pump PF1 may be suitable for circulating the heat transfer fluid in the first part PI, and the second pump PF2 may be suitable for circulating the heat transfer fluid in the second part P2 and the third part P3.

[0098] Also for example, and as illustrated non-limitingly in Figures 2 to 5, the first pump PF1 can be interposed between the first output S1 and the first part PI, and the second pump PF2 can be interposed between the second output S2 and the second part P2. In this case, the valve VC and the first PF1 and second PF2 pumps (heat transfer fluid) can possibly be part of a “fully integrated” control module MC, as illustrated non-limitingly in Figures 2 to 5. This advantageously makes it possible to further reduce the number of equipment items, the size and the complexity of the architecture of the installation IV. But this is not an obligation. Indeed, the first pump PF1 could be part of the first part PI, and the second pump PF2 could be part of the second part P2.

[0099] Also for example, and as illustrated non-limitingly in Figures 2 to 5, the installation IV may comprise a degassing box BDZ coupled to the first part PI in order to allow degassing of the latter (PI). In this case, the valve VC may also comprise a degassing inlet E5 (k = 5) which is connected to the degassing box BDZ and capable of being coupled to the second outlet S2 in order to allow degassing of the second part P2 and / or the third part P3. It will be noted that this coupling between the degassing inlet E5 and the second outlet S2 may possibly be permanent.

[0100] Also for example, and as illustrated non-limitingly in Figures 2 to 5, the heating / cooling circuit CR may comprise a first temperature probe STI for measuring the temperature of the heat transfer fluid in its first part PI (preferably at its inlet), a second temperature probe ST2 for measuring the temperature of the heat transfer fluid in its second part P2 (preferably at its inlet), and a third temperature probe ST3 for measuring the temperature of the heat transfer fluid in its third part P3 (preferably upstream of the main battery BP).

[0101] It will also be noted that in order for the supervision computer CS to be able to carry out all the aforementioned supervisions, it can comprise at least a first processor, for example a digital signal processor (or DSP (“Digital Signal Processor”)), and at least one memory. It can therefore be produced in the form of a combination of electrical or electronic circuits or components (or “hardware”) and software modules (or “software”).

[0102] The memory is RAM in order to store instructions for the implementation by the processor of at least one computer program (or computer program). The first processor may comprise integrated (or printed) circuits, or several integrated (or printed) circuits connected by wired or wireless connections. An integrated (or printed) circuit is any type of device capable of performing at least one electrical or electronic operation.

[0103] It will also be noted that the supervision calculator CS can also include:

[0104] - a mass memory, in particular for storing possible inter-company data mediators involved in all its calculations and processing,

[0105] - an input interface for receiving instructions (or requests) to use them in calculations or processing, possibly after having formatted and / or demodulated and / or amplified their contents, in a manner known per se, by means of a second digital signal processor, and

[0106] - an output interface, in particular for delivering orders defining the next position of the valve VC and the respective operating states of the radiator RI, heater DC, first heat exchanger EC1 and second heat exchanger EC2.

Claims

1.

2.

3. Claims Heating / cooling installation (IV) for a vehicle (V) comprising an electric prime mover (MME), a main battery (BP) suitable for supplying electrical energy to said prime mover (MME), a converter (CV) suitable for converting electrical energy stored in said main battery (BP), and a passenger compartment (H), said installation (IV) comprising a heating / cooling circuit (CR) in which a heat transfer fluid circulates and comprising a first part (PI) coupled to said converter (CV) and prime mover (MME), and second (P2) and third (P3) parts coupled respectively to said passenger compartment (H) and to said main battery (BP), characterized in that it further comprises a valve (VC) connected to said first (PI), second (P2) and third (P3) parts, and suitable for selectively taking one of at least four positions in which it allows isolated operation of at least one of said first (PI),second (P2) and third (P3) parts and / or a coupling between at least two of said first (PI), second (P2) and third (P3) parts for heating / cooling said passenger compartment (H) and / or said main battery (BP), and / or cooling said converter (CV) and prime mover (MME)., Installation according to claim 1, characterized in that said valve (VC) is capable of selectively taking a) a first position coupling said second (P2) and third (P3) parts to heat / cool said passenger compartment (H) and / or said main battery (BP), b) a second position in which said heat transfer fluid circulates in said second part (P2) to heat said passenger compartment (H) and / or in said first part (PI) to cool said prime mover (MME) and said converter (CV), c) a third position coupling two by two said first (PI), second (P2) and third (P3) parts to heat said main battery (BP), and d) a fourth position coupling said first (PI) and second (P2) parts to heat said passenger compartment (H). Installation according to claim 2, characterized in that said valve (VC) comprises first (El) and second (E2) inlets and a first outlet (SI) connected to said first part (PI), a third inlet (E3) and a second outlet (S2) connected to said second part (P2), and a fourth inlet (E4) and a third output (S3) connected to said third part (P3), and is arranged a) in said first position so as to couple said first input (El) to said first output (SI), said third input (E3) to said third output (S3) and said fourth input (E4) to said second output (S2), b) in said second position so as to couple said first input (El) to said first output (SI) and said third input (E3) to said second output (S2), c) in said third position so as to couple said second input (E2) to said second output (S2), said third input (E3) to said third output (S3) and said fourth input (E4) to said first output (SI), and d) in said fourth position so as to couple said second input (E2) to said second output (S2) and said third input (E3) to said first output (SI).

4. Installation according to claim 3, characterized in that it comprises a degassing box (BDZ) coupled to said first part (PI) in order to allow degassing of the latter (PI), and in that said valve (VC) comprises a degassing inlet (E5) connected to said degassing box (BDZ) and suitable for being coupled to said second outlet (S2) in order to allow degassing of said second part (P2) and / or said third part (P3).

5. Installation according to one of claims 1 to 4, characterized in that it comprises i) a first pump (PF1) capable of circulating said heat transfer fluid in said first part (PI), and ii) a second pump (PF2) capable of circulating said heat transfer fluid in said second part (P2) and said third part (P3).

6. Installation according to the combination of claims 3 and 5, characterized in that said first pump (PF1) is interposed between said first outlet (SI) and said first part (PI), and in that said second pump (PF2) is interposed between said second outlet (S2) and said second part (P2).

7. Installation according to one of claims 1 to 6, characterized in that said first part (PI) comprises a radiator (RI) capable of cooling said heat transfer fluid before it reaches said valve (VC).

8. Installation according to one of claims 1 to 7, characterized in that said second part (P2) comprises i) a heating device (DC) suitable for heating said heat transfer fluid leaving said valve (VC) and entering said second part (P2), ii) a first heat exchanger (EC1) suitable for cooling said heat transfer fluid leaving said valve (VC) and entered into said second part (P2), and iii) a second heat exchanger (EC2) installed downstream of said first exchanger (EC1), in which said heat transfer fluid circulates having passed through the latter (EC1) and capable of heating / cooling air intended for said passenger compartment (H) by exchange with said heat transfer fluid.

9. Vehicle (V) comprising an electric prime mover (MME), a main battery (BP) suitable for supplying said prime mover (MME) with electrical energy, a converter (CV) suitable for converting electrical energy stored in said main battery (BP), and a passenger compartment (H), characterized in that it further comprises a heating / cooling installation (IV) according to one of claims 1 to 8.

10. Vehicle according to claim 9, characterized in that it is of the automobile type.

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