WO2023083872A1 - Procédé de contrôle d'un système de conditionnement thermique - Google Patents
Procédé de contrôle d'un système de conditionnement thermique Download PDFInfo
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- WO2023083872A1 WO2023083872A1 PCT/EP2022/081292 EP2022081292W WO2023083872A1 WO 2023083872 A1 WO2023083872 A1 WO 2023083872A1 EP 2022081292 W EP2022081292 W EP 2022081292W WO 2023083872 A1 WO2023083872 A1 WO 2023083872A1
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- WIPO (PCT)
- Prior art keywords
- heat exchanger
- heat
- transfer liquid
- heat transfer
- exchanger
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3213—Control means therefor for increasing the efficiency in a vehicle heat pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32284—Cooling devices using compression characterised by refrigerant circuit configurations comprising two or more secondary circuits, e.g. at evaporator and condenser side
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H2001/00949—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising additional heating/cooling sources, e.g. second evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H2001/00961—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising means for defrosting outside heat exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
- B60H2001/3261—Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit
Definitions
- the present invention relates to the field of thermal conditioning systems.
- thermal conditioning systems can in particular be fitted to a motor vehicle.
- These systems make it possible to achieve thermal regulation of various parts of the vehicle, such as the passenger compartment or an electrical energy storage battery, in the case of an electrically powered vehicle.
- Heat exchanges are mainly managed by the compression and expansion of a refrigerant fluid within several heat exchangers.
- Thermal conditioning systems commonly use a refrigerant loop and a coolant loop exchanging heat with the refrigerant. Such systems are thus called indirect.
- Patent EP2933586 B1 is an example of such a system.
- the refrigerant loop makes it possible in particular to heat the passenger compartment of the vehicle by dissipating in a flow of air sent to the passenger compartment the heat resulting from the condensation of the high-pressure refrigerant fluid.
- the vaporization of the low-pressure refrigerant fluid is obtained by absorbing heat from an air flow external to the vehicle. This vaporization of the low-pressure refrigerant fluid takes place in a heat exchanger generally located on the front face of the vehicle.
- the present invention proposes a method for controlling a thermal conditioning system for a motor vehicle, the thermal conditioning system comprising:
- a heat transfer liquid circuit configured to circulate a heat transfer liquid
- a refrigerant fluid circuit comprising successively: a compression device, a two-fluid exchanger, a first expansion device arranged upstream of a first heat exchanger, the two-fluid exchanger and the first heat exchanger being arranged together on the circuit refrigerant fluid and on the heat transfer liquid circuit so as to allow heat exchange between the refrigerant fluid and the heat transfer liquid, the heat transfer liquid circuit comprising a second heat exchanger configured to exchange heat with an air flow inside a passenger compartment of the vehicle, the control method comprising the steps: i - determining an ambient temperature outside the vehicle, ii - if the ambient temperature is below a first predetermined temperature threshold:
- step 1112 - in conjunction with step iii1 of circulation of the refrigerant fluid, circulate heat transfer liquid in the two-fluid exchanger, in the first heat exchanger, in the second heat exchanger.
- the compression device passes the high-pressure refrigerant.
- the high-pressure gaseous refrigerant condenses in the two-fluid heat exchanger.
- the heat of condensation of the refrigerant fluid is transmitted to the heat transfer liquid circulating in the two-fluid exchanger.
- the refrigerant fluid is then expanded in the first expansion device, and passes to low pressure.
- the low pressure refrigerant evaporates in the first heat exchanger, and absorbs heat from the heat transfer liquid.
- the compression device provides work to the refrigerant fluid, the quantity of heat supplied to the heat transfer liquid at the two-fluid exchanger is greater than the quantity of heat absorbed at the level of the first heat exchanger. The heat transfer liquid is thus heated.
- This mode of operation thus makes it possible to heat the heat transfer liquid in order to heat the passenger compartment of the vehicle, without using additional heating, for example electric, and without the risk of freezing an evaporator located on the front face when the ambient temperature is close to 0°C.
- the passenger compartment can thus be heated even at low temperature, without using additional heating. The cost and bulk of the thermal conditioning system can thus be reduced.
- the first heat exchanger is configured to be thermally coupled with an element of an electric powertrain of the vehicle.
- the coolant circuit is configured so that according to at least one operating mode of the thermal conditioning system, the two-fluid exchanger, the second heat exchanger and the first heat exchanger are connected in series.
- the component of the vehicle's electric powertrain is configured to exchange heat with the coolant.
- the first heat exchanger is configured to exchange heat with the heat transfer liquid.
- a portion of the coolant circuit comprising the first heat exchanger communicates with a portion of the coolant circuit comprising the element of the traction chain.
- a thermal coupling is thus produced between the first heat exchanger and the element of the traction chain.
- the coolant circuit is configured so that according to at least one operating mode of the thermal conditioning system, the two-fluid exchanger, the second heat exchanger, the first heat exchanger and the element of the traction are connected in series.
- the element of the electric traction chain of the vehicle comprises an electric traction motor of the vehicle.
- the element of the electric traction chain of the vehicle comprises an electronic module for controlling an electric traction motor of the vehicle.
- the component of the vehicle's electric powertrain includes an electrical energy storage battery.
- a mass flow rate of refrigerant fluid in the two-fluid exchanger is equal to a mass flow rate of refrigerant fluid in the first heat exchanger.
- control method includes the step: iv- Determine a temperature of the heat transfer liquid at the inlet of the second heat exchanger.
- the control method comprises the step: v1 - If the temperature of the coolant at the inlet of the second heat exchanger is less than or equal to a second predetermined temperature threshold, maintaining an interior air flow rate above below a first predetermined throughput threshold.
- the first predetermined flow rate threshold is for example less than 50 kg/h.
- control method may include the step: - If the temperature of the heat transfer liquid at the outlet of the two-fluid heat exchanger is lower than a predetermined minimum temperature, prohibit circulation of heat transfer liquid in the second heat exchanger.
- the control method comprises the step: vi- If the temperature of the coolant at the inlet of the second heat exchanger is less than or equal to the second predetermined temperature threshold, increasing a rotation speed of the compression device until a predetermined maximum value.
- the predetermined maximum value of the rotation speed of the compression device depends on a forward speed of the vehicle.
- the noise emitted by the compression device is more easily heard by the occupants of the vehicle than when the vehicle is moving. Indeed, the ambient noise is higher when the vehicle is moving.
- the predetermined maximum value depends on the pressure of the refrigerant fluid at the inlet of the compression device.
- control process may include the step:
- the control method comprises the step: v2- If the temperature of the coolant at the inlet of the second heat exchanger is greater than the second predetermined temperature threshold, generating an interior air flow rate greater than a second threshold of predetermined flow rate.
- the second predetermined threshold is for example 100 kg/h.
- the step for generating an interior air flow rate includes a sub-step for activating a fan motor assembly configured to circulate an air flow.
- the control method comprises the step: vii- If the temperature of the coolant at the inlet of the second heat exchanger is greater than the second predetermined temperature threshold, controlling a rotational speed of the compression device so as to regulate a temperature of the heat transfer liquid entering the second heat exchanger at a set value.
- the control of the rotation speed of the compression device can for example be carried out by a regulator of the proportional, integral, derivative type using the difference between the actual temperature of the coolant liquid at the inlet of the second heat exchanger and its value of order.
- the control method comprises the steps: viii- Receive a temperature set point value for the heat transfer liquid entering the second heat exchanger, viii-1 - Determine a temperature of the heat transfer liquid entering the second heat exchanger, viii-2 - Determine a difference between the determined temperature of the coolant liquid at the inlet of the second heat exchanger and the set value of the temperature of the coolant liquid at the inlet of the second heat exchanger, viii-3 - If the determined difference is lower at 0, increase a rotation speed of the compression device.
- the control method comprises the step: viii-4 - If the determined difference is greater than 0 and less than a predetermined maximum value, reducing a rotational speed of the compression device. [37]
- the control process includes the step:
- the control process includes the step:
- a temperature of the refrigerant fluid at the inlet of the first heat exchanger is less than - 15° C. during step i of circulation of refrigerant fluid in the first heat exchanger .
- the flow rate of heat transfer liquid in the second heat exchanger is equal to the flow rate of heat transfer liquid in the two-fluid exchanger during step iii of circulation of the heat transfer liquid heated in the second heat exchanger.
- the thermal conditioning system further comprises: a second expansion device, a third heat exchanger configured to exchange heat with an external air flow, the third heat exchanger being configured to operate at least as an evaporator, a flow of refrigerant fluid circulates in the third heat exchanger during step i of circulation of refrigerant fluid in the first heat exchanger.
- the invention also relates to a thermal conditioning system for a motor vehicle, the thermal conditioning system comprising:
- a heat transfer liquid circuit configured to circulate a heat transfer liquid
- a refrigerant circuit comprising successively: a compression device, a two-fluid heat exchanger, a first expansion device arranged upstream of a first heat exchanger, the two-fluid exchanger and the first heat exchanger being arranged jointly on the refrigerant circuit and on the heat transfer liquid circuit so as to allow an exchange of heat between the refrigerant fluid and the heat transfer liquid, the heat transfer liquid circuit comprising a second heat exchanger configured to exchange heat with a flow of air inside a passenger compartment of a motor vehicle,
- An electronic control unit configured to implement the control method as described above.
- the component of the vehicle's electric powertrain is configured to exchange heat with a coolant circulating in an auxiliary coolant loop.
- the first heat exchanger is configured to exchange heat with the heat transfer liquid circulating in the auxiliary heat transfer liquid loop.
- the thermal conditioning system further comprises: a second expansion device, a third heat exchanger configured to exchange heat with an external air flow, the third heat exchanger being configured to operate at least as an evaporator.
- the coolant circuit includes a main circulation loop, the main loop comprising the two-fluid exchanger and the second heat exchanger.
- the auxiliary coolant loop can be selectively placed in communication with the main coolant loop.
- the main coolant loop includes a pump configured to circulate the coolant.
- the auxiliary coolant loop comprises a pump, not shown, configured to circulate the coolant.
- the coolant circuit comprises a first branch connecting a first connection point arranged on the main loop to a second connection point arranged on the auxiliary loop.
- the coolant circuit comprises a second branch connecting a third connection point arranged on the main loop to a fourth connection point arranged on the auxiliary loop.
- the coolant circuit comprises a third branch connecting a fifth connection point arranged on the main loop to a fifth heat exchanger.
- the coolant circuit comprises a fourth branch connecting the fifth heat exchanger to a sixth connection point arranged on the main loop.
- the thermal conditioning system comprises a refrigerant circuit comprising
- a main loop comprising successively, according to the direction of travel of the refrigerant fluid: a compression device, a two-fluid exchanger, a first expansion device, a first heat exchanger, the two-fluid exchanger and the first heat exchanger being arranged jointly on the refrigerant circuit and on the heat transfer liquid circuit so as to allow heat exchange between the refrigerant fluid and the heat transfer liquid, the first heat exchanger being configured to be thermally coupled with an element of an electric traction chain of the vehicle,
- first bypass branch connecting a first connection point arranged on the main loop downstream of the dual-fluid exchanger and upstream of the first expansion device to a second connection point arranged on the main loop downstream of the first heat exchanger and upstream of the compression device, the first bypass branch comprising a second expansion device and a third heat exchanger configured to exchange heat with an external air flow, the third heat exchanger being configured to operate at least as an evaporator,
- a second bypass branch connecting a third connection point arranged on the main loop downstream of the first connection point and upstream of the first expansion device to a fourth connection point arranged on the main loop downstream of the first heat exchanger and upstream of the second connection point, the second bypass branch comprising a third expansion device and a fourth heat exchanger configured to exchange heat with the interior air flow.
- the coolant circuit includes a fifth heat exchanger configured to exchange heat with the outside air flow.
- the fifth heat exchanger is arranged upstream of the third heat exchanger in one direction of flow of the outside air flow.
- the main loop comprises a first internal exchanger configured to allow heat exchange between the high-pressure refrigerant fluid downstream of the two-fluid exchanger and upstream of the first connection point, and the fluid low-pressure refrigerant downstream of the second connection point and upstream of the compression device.
- the main loop comprises a second internal exchanger configured to allow heat exchange between the high-pressure refrigerant fluid downstream of the first connection point and upstream of the third connection point, and the fluid low-pressure refrigerant downstream of the fourth connection point and upstream of the second connection point.
- the first internal exchanger and the second internal exchanger make it possible to increase the exchanges of heat and thus to increase the performance of the thermal conditioning system.
- the thermal conditioning system comprises a refrigerant circuit comprising
- a main loop comprising successively according to the direction of travel of the refrigerant fluid: a compression device, a two-fluid exchanger, a first expansion device, a first heat exchanger, the two-fluid exchanger and the first heat exchanger being arranged jointly on the refrigerant circuit and on the heat transfer liquid circuit so as to allow heat exchange between the refrigerant fluid and the heat transfer liquid, the first heat exchanger being configured to be thermally coupled with an element of an electric traction chain of a motor vehicle,
- a second bypass branch connecting a third connection point arranged on the main loop downstream of the two-fluid exchanger and upstream of the first expansion device to a fourth connection point arranged on the main loop downstream of the first heat exchanger and upstream of the compression device, the first bypass branch comprising a third expansion device and a fourth heat exchanger configured to exchange heat with the internal air flow,
- first bypass branch connecting a first connection point arranged on the second bypass branch downstream of the fourth heat exchanger and upstream of the fourth connection point to a second connection point arranged on the main loop downstream of the fourth point connection and upstream of the compression device, the first bypass branch comprising a second expansion device and a third heat exchanger configured to exchange heat with an external air flow, the third heat exchanger being configured to operate at least in an evaporator.
- the refrigerant circuit comprises a second internal exchanger configured to allow heat exchange between the high-pressure refrigerant fluid in the main loop downstream of the first internal exchanger and upstream of the third point of connection and the low-pressure refrigerant in the main loop downstream of the fourth connection point and upstream of the second connection point.
- the main loop comprises a coolant accumulation device arranged downstream of the two-fluid heat exchanger and upstream of the third connection point.
- the main loop includes a refrigerant fluid accumulation device located downstream of the two-fluid heat exchanger and upstream of the first connection point.
- the main loop comprises a refrigerant fluid accumulation device disposed downstream of the two-fluid exchanger and upstream of the first internal exchanger.
- FIG. 1 is a schematic view of a thermal conditioning system according to a first embodiment of the invention, in which the control method according to the invention is implemented,
- FIG. 2 is a schematic view of a thermal conditioning system according to a variant of the first embodiment of the invention
- FIG. 3 is a schematic view of a thermal conditioning system according to a second embodiment of the invention.
- FIG. 4 is a schematic view of a thermal conditioning system according to a variant of the second embodiment of the invention.
- FIG. 5 is a schematic view of the thermal conditioning system according to the first embodiment when the method according to the invention is implemented
- FIG. 6 is a schematic side view of a vehicle equipped with a thermal conditioning system according to Figures 1 to 5,
- FIG. 7 is a block diagram illustrating different steps of the method according to the invention
- FIG. 8 is a time evolution curve of several parameters of the method according to the invention
- FIG. 9 is a curve of the temporal evolution of several other process parameters.
- a first element upstream of a second element means that the first element is placed before the second element with respect to the direction of circulation, or course, of a fluid.
- a first element downstream of a second element means that the first element is placed after the second element with respect to the direction of circulation, or travel, of the fluid in question.
- the term "a first element is upstream of a second element” means that the refrigerant successively passes through the first element, then the second element, without passing through the compression device. In other words, the refrigerant leaves the compression device, possibly crosses one or more elements, then crosses the first element, then the second element, then returns to the compression device, possibly after having crossed other elements.
- a second element is placed between a first element and a third element means that the shortest route to go from the first element to the third element passes through the second element.
- an electronic control unit 50 receives information from various sensors, not shown, measuring in particular the characteristics of the refrigerant at various points in the circuit.
- the electronic control unit 50 also receives instructions issued by the occupants of the vehicle, such as for example the desired temperature inside the passenger compartment.
- the electronic control unit implements control laws allowing the piloting of the various actuators, in order to ensure the control of the thermal conditioning system 100 so as to ensure the instructions received.
- the electronic control unit 50 notably implements the method according to the invention.
- Each of the expansion devices used can be an electronic expansion valve, a thermostatic expansion valve, or a calibrated orifice.
- the passage section allowing the refrigerant fluid to pass can be adjusted continuously between a closed position and a maximum open position.
- the system control unit controls an electric motor which moves a mobile shutter controlling the section of passage offered to the refrigerant fluid.
- the compression device 3 can be an electric compressor, that is to say a compressor whose moving parts are driven by an electric motor.
- the compression device 3 comprises a suction side of the low-pressure refrigerant fluid, also called inlet 3a of the compression device, and a discharge side of the high-pressure refrigerant fluid, also called outlet 3b of the compression device 3.
- the internal moving parts of the compressor 3 cause the refrigerant fluid to pass from a low pressure on the inlet side 3a to a high pressure on the outlet side 3b.
- the work of compression and discharge is ensured thanks to the energy provided by the electric motor.
- the refrigerant fluid After expansion in one or more expansion devices, the refrigerant fluid returns to the inlet 3a of the compressor 3 and begins a new thermodynamic cycle.
- the refrigerant circuit 2 forms a closed circuit in which the refrigerant can circulate.
- the refrigerant circuit 2 is sealed when the latter is in a nominal operating state, that is to say without any fault or leak.
- Each connection point of circuit 2 allows the refrigerant fluid to pass into one or the other of the circuit portions meeting at this connection point.
- the distribution of the refrigerant fluid between the circuit portions joining at a connection point is done by acting on the opening or closing of stop valves, non-return valves or expansion device included on each of the branches.
- each connection point is a means of redirecting the refrigerant fluid arriving at this connection point.
- the refrigerant used by the refrigerant circuit 2 is here a chemical fluid such as R1234yf.
- Other refrigerants can also be used, such as R134a or R744, for example.
- Interior air flow Fi means an air flow intended for the passenger compartment of the motor vehicle.
- This indoor air flow can circulate in a heating, ventilation and/or air conditioning installation, frequently referred to by the English term “HVAC”, for “Heating, Ventilating and Air Conditioning”. This installation has not been shown in the various figures.
- HVAC heating, ventilation and/or air conditioning installation
- exterior air flow Fe is meant an air flow that is not intended for the passenger compartment of the vehicle. In other words, this air flow Fe remains outside the passenger compartment of the vehicle.
- a fan motor unit 35 can be activated in order to increase the flow rate of the outside air flow Fe if necessary.
- the air flow provided by the fan motor unit 35 can be adjusted for example by the electronic control unit 50 of the thermal conditioning system 100.
- thermal conditioning system 100 for a motor vehicle comprising:
- a heat transfer liquid circuit 1 configured to circulate a heat transfer liquid
- a refrigerant circuit 2 comprising successively: a compression device 3, a two-fluid heat exchanger 4, a first expansion device 31 disposed upstream of a first heat exchanger heat exchanger 21, the two-fluid exchanger 4 and the first heat exchanger 21 being arranged jointly on the refrigerant circuit 2 and on the heat transfer liquid circuit 1 so as to allow heat exchange between the refrigerant fluid and the heat transfer liquid, the coolant circuit 1 comprising a second heat exchanger 22 configured to exchange heat with an interior air flow Fi in a passenger compartment of the motor vehicle,
- An electronic control unit 50 configured to implement the control method according to the invention.
- the first heat exchanger 21 is arranged jointly on the refrigerant circuit 2 and on the coolant circuit 1 so as to allow heat exchange between the coolant and the coolant.
- the first heat exchanger 21 comprises an inlet 21a and an outlet 21b of refrigerant fluid, as well as an inlet 21c and an outlet 21d of coolant liquid.
- the refrigerant fluid and the heat transfer liquid can exchange heat during their passage through the first heat exchanger 21.
- the first heat exchanger 21 is a second two-fluid exchanger.
- the first heat exchanger 21 is for example a plate exchanger.
- the heat transfer liquid is for example a mixture of water and glycol, with a solidification temperature below -30°C.
- the first heat exchanger 21 is configured to be thermally coupled with an element 30 of an electric traction chain of a motor vehicle.
- the element 30 of the electric traction chain of the vehicle is configured to exchange heat with a heat transfer liquid circulating in an auxiliary loop 10 of heat transfer liquid.
- the first heat exchanger 21 is configured to exchange heat with the heat transfer liquid circulating in the auxiliary loop 10 of heat transfer liquid.
- the heat transfer liquid thus provides a thermal coupling between the first heat exchanger 21 and the element 30.
- the element 30 of the vehicle's electric traction chain comprises, for example, an electric vehicle traction motor.
- the element 30 of the electric traction chain of the vehicle comprises an electronic module for controlling an electric traction motor of the vehicle.
- the element 30 of the electric traction chain of the vehicle can also comprise an electric energy storage battery.
- Element 30 of the vehicle's electric drive train is configured to exchange heat with the heat transfer liquid.
- the heat transfer liquid can circulate in a casing of the element 30 of the electric traction chain comprising a coolant inlet and an outlet.
- the casing forms a coolant fluid circulation conduit between the inlet and the outlet. A heat exchange between the element 30 and the heat transfer liquid can thus be achieved.
- the first heat exchanger 21 is configured to exchange heat with the heat transfer liquid. To this end, according to at least one mode of operation of the thermal conditioning system 100, a portion of the coolant circuit 1 comprising the first heat exchanger 21 communicates with a portion of the coolant circuit 1 comprising the element of the chain traction 30. A thermal coupling is thus achieved between the first heat exchanger 21 and the element 30 of the traction chain.
- the thermal conditioning system 100 further comprises: a second expansion device 32, a third heat exchanger 23 configured to exchange heat with an air flow exterior Fe, the third heat exchanger 23 being configured to operate at least as an evaporator.
- the second expansion device 32 is arranged upstream of the third heat exchanger 23.
- the second expansion device 32 makes it possible to adjust the pressure of the refrigerant fluid at the inlet of the third heat exchanger 23.
- FIG. 6 schematically describes the location in the vehicle of heat exchangers interacting with the exterior air flow Fe or the interior flow Fi.
- the thermal conditioning system 100 includes a third heat exchanger 23 allowing the thermal conditioning system 100 to operate in a so-called heat pump operating mode. In this mode of operation, the heat necessary for the evaporation of the refrigerant fluid is taken from an outside air flow Fe.
- the heat pump mode can in particular be used when the ambient temperature is high enough for it not to there is no risk of icing of the water vapor contained in the flow of outside air Fe.
- the heat pump mode may become unusable. Indeed, the evaporation of the refrigerant is carried out at a temperature lower than the temperature of the external air flow, which is substantially equal to the ambient temperature. Evaporation thus takes place at a negative temperature. The water vapor contained in the ambient air can thus be transformed into ice and accumulate on the surface of the third heat exchanger 23. The accumulation of ice penalizes the heat transfer, which causes the thermodynamic performance to drop, until this mode of operation is prevented.
- an additional electric heating device into the thermal conditioning system. This additional component significantly increases the cost price of the system, and increases its weight and its size. It is therefore desirable to be able to heat the passenger compartment even in cold weather without adding an additional heating device.
- the present invention proposes for this purpose a method for controlling a thermal conditioning system 100 for a motor vehicle, the thermal conditioning system 100 comprising:
- a heat transfer liquid circuit 1 configured to circulate a heat transfer liquid
- a refrigerant circuit 2 comprising successively: a compression device 3, a two-fluid heat exchanger 4, a first expansion device 31 disposed upstream of a first heat exchanger heat exchanger 21, the two-fluid exchanger 4 and the first heat exchanger 21 being arranged jointly on the refrigerant circuit 2 and on the heat transfer liquid circuit 1 so as to allow heat exchange between the refrigerant fluid and the heat transfer liquid, the coolant circuit 1 comprising a second heat exchanger 22 configured to exchange heat with an interior air flow Fi to a passenger compartment of the vehicle, the control method comprising the steps: i - determining an ambient temperature Tamb outside the vehicle, ii - if the ambient temperature Tamb is lower than a first predetermined temperature threshold T1:
- the compression device 3 passes the high pressure refrigerant fluid.
- the high-pressure gaseous refrigerant condenses in the two-fluid exchanger 4.
- the heat of condensation of the refrigerant fluid is transmitted to the heat transfer liquid circulating in the two-fluid exchanger 4.
- the refrigerant fluid yields thus heats the heat transfer liquid at the level of the two-fluid heat exchanger 4.
- the refrigerant is then expanded in the first expansion device 31, and passes to low pressure.
- the low pressure refrigerant evaporates in the first heat exchanger 21, and absorbs heat from the coolant.
- the quantity of heat supplied to the heat transfer liquid at the level of the two-fluid exchanger 4 is greater than the quantity of heat absorbed at the level of the first heat exchanger 21.
- the heat transfer liquid is thus globally heated. This mode of operation thus makes it possible to heat the heat transfer liquid in order to heat the passenger compartment of the vehicle, without using additional heating for example. electric, and without the risk of freezing an evaporator located on the front panel when the ambient temperature is close to 0°C.
- the passenger compartment can thus be heated even at low temperature, without using additional heating.
- the cost and size of the thermal conditioning system can thus be reduced compared to a conventional thermal conditioning system.
- the first heat exchanger 21 is on the illustrated example configured to be thermally coupled with an element 30 of an electric traction chain of the vehicle. Thus, it is possible to recover at least part of the heat dissipated during the operation of the element 30 of the traction chain.
- Ambient temperature is the temperature of the air around the vehicle and outside the vehicle.
- the ambient temperature is measured at a place in the vehicle where the air temperature is not affected by the operation of the vehicle.
- the refrigerant circulating in the two-fluid heat exchanger 4 is at high pressure.
- the refrigerant circulating in the first heat exchanger 21 is at low pressure. Indeed, the high-pressure refrigerant at the outlet of the two-fluid exchanger 4 is expanded in the first expansion device 31 and passes to low pressure, then circulates in the first heat exchanger 21 .
- the coolant circuit 1 is configured so that according to at least a first mode of operation of the thermal conditioning system 100, the two-fluid exchanger 4, the second heat exchanger 22 and the first heat exchanger 21 are connected serial.
- the heat transfer liquid can thus circulate successively in the two-fluid exchanger 4, in the first heat exchanger 21, in the second heat exchanger 22.
- the heat transfer liquid can circulate successively in the two-fluid exchanger 4, in the second heat exchanger 22, then in the first heat exchanger 21.
- the refrigerant liquid circulates in a closed loop in the two-fluid exchanger 4, in the first heat exchanger 21, and in the second heat exchanger 22.
- the coolant circuit 1 is configured so that according to at least a second mode of operation of the thermal conditioning system 100, the two-fluid exchanger 4, the second heat exchanger 22, the first heat exchanger 21 and element 30 of the traction chain are connected in series.
- FIG. 5 diagrams the circulation of the refrigerant fluid and the circulation of the heat transfer liquid when the method according to the invention is applied.
- the portions of the refrigerant circuit 2 in which the refrigerant circulates are shown in thick lines.
- the portions of circuit 2 in which the refrigerant fluid does not circulate are shown in dotted lines.
- the portions of the heat transfer liquid circuit 1 in which the heat transfer liquid circulates are shown in thick lines and the portions of the circuit 1 in which the heat transfer liquid does not circulate are shown in dotted lines.
- the refrigerant circulates successively in the compression device 3, in the two-fluid exchanger 4, in the first heat exchanger 21, then returns to the compression device 3.
- the heat transfer liquid circulates successively in the two-fluid exchanger 4, in the second heat exchanger 22, in the first heat exchanger 1, in the element 30 of the traction chain, and returns to the two-fluid exchanger 4.
- a mass flow rate of refrigerant fluid in the two-fluid exchanger 4 is equal to a mass flow rate of refrigerant fluid in the first heat exchanger 21.
- the entire flow of refrigerant fluid leaving the two-fluid exchanger 4 joins and passes through the first heat exchanger 21.
- the other branches of the refrigerant circuit 2, and the heat exchangers which are arranged there are not traversed by a flow of refrigerant fluid.
- the control method comprises the step: iv - Determining a temperature T_22 of the heat transfer liquid at the inlet of the second heat exchanger 22, v1 - If the temperature T_22 of the heat transfer liquid at the inlet of the second heat exchanger 22 is lower or equal to a second predetermined temperature threshold T2, maintaining a flow rate Q_Fi of interior air flow below a first predetermined flow threshold Q1.
- the first predetermined throughput threshold Q1 is for example less than 50 kg/h.
- the flow rate Q_Fi of interior air Fi is thus maintained at a very low value so that the heat exchange at the level of the second heat exchanger 22 is negligible. In fact, during this operating phase, the temperature of the heat transfer liquid is too low to effectively heat the interior air flow Fi, and it is not desirable to blow cool air onto the occupants of the vehicle due to the discomfort caused by such a cool breath.
- a motor-fan unit 5 makes it possible to generate an air flow Fi on the second heat exchanger 22.
- the motor-fan unit 5 is for example arranged upstream of the second heat exchanger 22.
- the motor-fan unit is kept inactive, that is to say not controlled.
- a movable shutter can be controlled so as to block air circulation on the second heat exchanger 22. In the figures, the shutter has not been shown.
- curve 60 schematizes the evolution of the airflow Q_Fi of the indoor airflow Fi as a function of time.
- the curve 61 schematizes the evolution of the temperature T_22 of the coolant at the inlet of the second heat exchanger 22. From the initial instant until the instant t1, the air flow Q_Fi is maintained at a value lower than Q1 because the temperature T_22 is lower than the threshold T2.
- control process may include the step:
- the control method comprises the step: vi - If the temperature T_22 of the coolant liquid entering the second heat exchanger 22 is less than or equal to the second predetermined temperature threshold T2, increasing a rotational speed N of the compression 3 up to a predetermined maximum value Nmax. [109] Increasing the speed of rotation of the compression device 3 makes it possible to increase the flow rate of refrigerant fluid in the circuit 2 and thus the thermal power supplied.
- curve 63 schematizes the evolution of the rotational speed of the compression device 3 as a function of time.
- Curve 62 schematizes the change in temperature T_22 of the coolant at the inlet of the second heat exchanger 22.
- the maximum speed Nmax of compressor 3 is reached at time t2.
- the predetermined maximum value Nmax of the rotational speed of the compression device 3 depends on a forward speed of the vehicle. Indeed, when the vehicle is stationary, the noise emitted by the compression device is more easily audible by the occupants of the vehicle than when the vehicle is moving. Ambient noise is higher when the vehicle is moving. The noise generated by the operation of the compression device increases when the rotational speed increases. A higher rpm can be accepted when the background noise is higher.
- the predetermined maximum value Nmax depends on the pressure of the refrigerant fluid at the inlet of the compression device 3. Indeed, an increase in the speed of rotation of the compression device 3 causes the pressure at its inlet to decrease. In order to avoid the risk of sucking air into the circuit, the inlet pressure is maintained at a value higher than the value of the ambient atmospheric pressure.
- the minimum admissible value of the pressure at the inlet of the compressor 3 is for example 1.2 bar. When the minimum pressure threshold is reached, the rotation speed of the compressor is maintained at its current value and no longer increases.
- control process may include the step:
- the control method includes the step: v2 - If the temperature T_22 of the heat transfer liquid at the inlet of the second heat exchanger 22 is higher than the second predetermined temperature threshold T2, generate a higher internal air flow rate Fi at a second predetermined throughput threshold Q2.
- This step is illustrated in figure 8, after the instant t1 when the temperature T_22 becomes higher than the second threshold T2.
- the second predetermined threshold Q2 is for example 100 kg/h.
- the temperature of the heat transfer liquid then being sufficiently high, the air in contact with the second heat exchanger 22 can be heated effectively. It is then possible to blow air onto the second exchanger 22 so as to supply the passenger compartment of the vehicle with heated air.
- the step of generating an interior air flow rate Fi includes a sub-step of activating a fan motor assembly 5 configured to circulate an air flow.
- the control method includes the step: vii - If the temperature T_22 of the coolant at the inlet of the second heat exchanger 22 is greater than the second predetermined temperature threshold T2, control a rotational speed N of the compression device 3 so as to regulate a temperature T_22 of the heat transfer liquid at the inlet of the second heat exchanger 22 to a set value T_co.
- the control of the rotation speed of the compression device 3 can for example be carried out by a regulator of the proportional, integral, derivative type using as input variable the difference between the actual temperature of the heat transfer liquid at the input of the second heat exchanger of heat 22 and its setpoint T_co.
- the control carried out is illustrated schematically in Figure 9.
- the control method comprising the steps: viii - Receive a setpoint value T_co of the temperature of the coolant liquid at the inlet of the second heat exchanger 22, viii-1 - Determine a temperature T_22 of the coolant liquid at the inlet of the second exchanger temperature 22, viii-2 - Determine a difference d between the determined temperature T_22 of the coolant liquid at the inlet of the second heat exchanger 22 and the set value T_co of the temperature of the coolant liquid at the inlet of the second heat exchanger 22, viii -3 - If the determined difference d is less than 0, increase the rotation speed N of the compression device 3.
- the control method includes the step: viii-4 - If the determined difference d is greater than 0 and less than a predetermined maximum value E1, reduce a speed of rotation N of the compression device 3.
- the control process includes the step:
- the control process includes the step:
- a temperature of the refrigerant fluid at the inlet of the first heat exchanger 21 is less than -15° C. during step i of circulation of refrigerant fluid in the first heat exchanger. heat 21 .
- This value allows efficient heat transfer in the first heat exchanger 21 , and therefore efficient energy recovery.
- a temperature value clearly below 0° C. can be chosen, since the heat transfer liquid in contact with the first heat exchanger 21 presents no risk of freezing.
- the flow rate of heat transfer liquid in the second heat exchanger 22 is equal to the flow rate of heat transfer liquid in the two-fluid exchanger 4 during step iii of circulation of the heat transfer liquid heated in the second heat exchanger 22.
- the thermal conditioning system 100 comprises: a second expansion device 32, a third heat exchanger 23 configured to exchange heat with an external air flow Fe , the third heat exchanger 23 being configured to operate at least as an evaporator, a flow of refrigerant fluid circulates in the third heat exchanger 23 during step i of circulation of refrigerant fluid in the first heat exchanger 21 .
- the third heat exchanger 23 also participates in the heat exchanges of the thermal conditioning system and contributes to supplying the heat performing the heating of the passenger compartment of the vehicle.
- This operating phase can be applied when the outside temperature does not risk causing icing of the third heat exchanger.
- This operating phase can also be applied temporarily, even when the third exchanger risks freezing up. In this case, the duration of application of this operating phase is sufficiently short so that the accumulation of ice does not have time to occur.
- the coolant circuit 1 comprises a main circulation loop 40, the main loop 40 comprising the two-fluid exchanger 4 and the second heat exchanger 22.
- the auxiliary loop 10 of heat transfer liquid can be selectively placed in communication with the main loop 40 of heat transfer liquid. In other words, according to certain modes of operation, the auxiliary loop 10 and the main loop 40 are connected. Under these conditions, the heat transfer liquid of the auxiliary loop 10 mixes with the heat transfer liquid of the main loop 40 of heat transfer liquid.
- the main loop 40 of heat transfer liquid 1 comprises a pump 9 configured to circulate the heat transfer liquid.
- the auxiliary heat transfer liquid loop 10 also comprises a pump, not shown, configured to circulate the heat transfer liquid.
- the coolant circuit 1 comprises a first branch 41 connecting a first connection point 51 arranged on the main loop 40 to a second connection point 52 arranged on the auxiliary loop 10.
- the coolant circuit 1 comprises a second branch 42 connecting a third connection point 53 placed on the main loop 40 to a fourth connection point 54 placed on the auxiliary loop 10.
- the first branch 41 and the second branch 42 allow communication between the main loop 40 of heat transfer liquid and the auxiliary loop 10 of heat transfer liquid.
- the coolant circuit 1 comprises a third branch 43 connecting a fifth connection point 55 disposed on the main loop 40 to a fifth heat exchanger 25.
- the coolant circuit 1 comprises a fourth branch 44 connecting the fifth exchanger heat exchanger 25 to a sixth connection point 56 disposed on the main loop 40.
- the fifth heat exchanger 25 is configured to exchange heat with the outside air flow Fe.
- the third branch 43 and the fourth branch 44 make it possible to put the main loop 40 of heat transfer liquid and the fifth heat exchanger 25 in communication.
- the heat transfer liquid can be cooled by the flow of outside air Fe by circulating in the fifth heat exchanger.
- the coolant circuit 1 also comprises a fifth branch 45 which connects the inlet and the outlet of the element 30.
- the fifth branch 45 is a bypass branch allowing the coolant from the outlet 21 d of the first heat exchanger to join the fourth connection point 54 without passing through the element 30, therefore without carrying out a heat exchange with the element 30.
- FIG. 1 describes a first embodiment of the thermal conditioning system 100.
- the thermal conditioning system 100 comprises a refrigerant circuit 2 comprising
- a main loop A comprising successively, according to the direction of travel of the refrigerant fluid: a compression device 3, a two-fluid exchanger 4, a first expansion device 31, a first heat exchanger 21, the two-fluid exchanger 4 and the first heat exchanger 21 being arranged jointly on the refrigerant circuit 2 and on the heat transfer liquid circuit 1 so as to allow heat exchange between the refrigerant fluid and the heat transfer liquid, the first exchanger of heat 21 being configured to be thermally coupled with an element 30 of an electric traction chain of the vehicle,
- first bypass branch B connecting a first connection point 11 arranged on the main loop A downstream of the two-fluid exchanger 4 and upstream of the first expansion device 31 to a second connection point 12 arranged on the main loop A downstream of the first heat exchanger 21 and upstream of the compression device 3,
- the first bypass branch B comprising a second expansion device 32 and a third heat exchanger 23 configured to exchange heat with an air flow outside Fe, the third heat exchanger 23 being configured to operate at least as an evaporator
- the second bypass branch C comprising a third expansion device 33 and a fourth heat exchanger 24 configured to exchange heat with the flow of indoor air Fi.
- the first bypass branch B is arranged in parallel with a portion of the main loop A comprising the first expansion device 31 and the first heat exchanger 21.
- the second bypass branch C is arranged in parallel with a portion of the main loop A comprising the first expansion device 31 and the first heat exchanger 21 .
- the coolant circuit 1 comprises a fifth heat exchanger 25 configured to exchange heat with the outside air flow Fe.
- the fifth heat exchanger 25 is arranged upstream of the third heat exchanger 23 in one direction flow rate of the outside air flow Fe.
- the first bypass branch B comprises a non-return valve 36 configured to block a flow of refrigerant fluid from the second connection point 12 to the first connection point 11.
- the second bypass branch C comprises a check valve -return 37 configured to block circulation of the refrigerant fluid from the fourth connection point 14 to the third connection point 13.
- the non-return valve 36 prevents migration of the refrigerant fluid to the third exchanger 23 when the latter does not participate to heat exchange, that is to say when the second expansion device 32 is in the closed position.
- the non-return valve 37 prevents migration of the coolant towards the fourth heat exchanger 24 when the third expansion device 33 is in the closed position and the fourth exchanger 24 does not participate in heat exchange.
- the main loop A comprises a first internal exchanger 6 configured to allow heat exchange between the high-pressure refrigerant fluid downstream of the two-fluid heat exchanger 4 and upstream of the first connection point 11, and the low-pressure refrigerant fluid downstream of the second connection point 12 and upstream of the compression device 3.
- the first internal exchanger 6 comprises a first heat exchange section 6a arranged on the main loop A downstream of the two-fluid exchanger 4 and upstream of the first connection point 1 1 .
- the first internal exchanger 6 comprises a second heat exchange section 6b arranged on the main loop A downstream of the second connection point 12 and upstream of the compression device 3.
- the first internal exchanger 6 is configured to allow heat exchange between the refrigerant fluid in the first heat exchange section 6a and the refrigerant fluid in the second heat exchange section 6b.
- the main loop A comprises a second internal exchanger 7 configured to allow heat exchange between the high-pressure refrigerant fluid downstream of the first connection point 11 and upstream of the third connection point, and the fluid low-pressure refrigerant downstream of the fourth connection point 14 and upstream of the second connection point 12.
- the second internal exchanger 7 comprises a first heat exchange section 7a disposed on the main loop A downstream of the first connection point 1 1 and upstream of the third connection point 13.
- the second internal exchanger 7 comprises a second heat exchange section 7b disposed on the main loop A downstream of the fourth connection point 14 and upstream of the second connection point 12.
- the second internal exchanger 7 is configured to allow heat exchange between the refrigerant fluid in the first heat exchange section 7a and the coolant in the second heat exchange section 7b.
- the first internal exchanger 6 and the second internal exchanger 7 make it possible to increase the exchanges of heat and thus to increase the performance of the thermal conditioning system 100.
- FIG. 1 illustrates a second embodiment of the thermal conditioning system 100.
- the thermal conditioning system 100 comprises a refrigerant circuit 2 comprising:
- a main loop A comprising successively, according to the direction of travel of the refrigerant fluid: a compression device 3, a two-fluid exchanger 4, a first expansion device 31, a first heat exchanger 21, the two-fluid exchanger 4 and the first exchanger 21 being arranged jointly on the refrigerant circuit 2 and on the heat transfer liquid circuit 1 so as to allow an exchange of heat between the refrigerant fluid and the heat transfer liquid, the first heat exchanger 21 being configured to be thermally coupled with an element 30 of an electric traction chain of a motor vehicle,
- the first bypass branch B comprising a third expansion device 33 and a fourth heat exchanger 24 configured to exchange heat with the interior air flow Fi
- first bypass branch B connecting a first connection point 11 disposed on the second bypass branch C downstream of the fourth heat exchanger 24 and upstream of the fourth connection point 14 to a second connection point 12 disposed on the main loop A downstream of the fourth connection point 14 and upstream of the compression device 3,
- the first bypass branch B comprising a second expansion device 32 and a third heat exchanger 23 configured to exchange heat with a flow of outside air Fe, the third heat exchanger 23 being configured to operate at least as an evaporator.
- the second embodiment differs from the first embodiment by the arrangement of branch branches B and C with respect to main loop A.
- the main loop A comprises a first internal exchanger 6 arranged in the same way as for the variant of the first embodiment, illustrated in Figure 2.
- the refrigerant circuit 2 also includes a second internal exchanger 7 configured to allow heat exchange between the high-pressure refrigerant in the main loop A downstream of the first internal exchanger 6 and upstream of the third connection point 13 and the low-pressure refrigerant fluid in the main loop A downstream of the fourth connection point 14 and upstream of the second connection point 12.
- the main loop A comprises a coolant accumulation device 8 disposed downstream of the two-fluid exchanger 4 and upstream of the third connection point 13.
- the main loop A comprises a coolant accumulation device 8 disposed downstream of the two-fluid exchanger 4 and upstream of the first connection point 1 1.
- the main loop A comprises a coolant accumulation device 8 disposed downstream of the two-fluid exchanger 4 and upstream of the first internal exchanger 6.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22814384.8A EP4433316A1 (fr) | 2021-11-15 | 2022-11-09 | Procédé de contrôle d'un système de conditionnement thermique |
| US18/710,426 US20250001834A1 (en) | 2021-11-15 | 2022-11-09 | Method for controlling a thermal conditioning system |
| CN202280084904.XA CN118450995A (zh) | 2021-11-15 | 2022-11-09 | 用于控制热调节系统的方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2112024A FR3129107B1 (fr) | 2021-11-15 | 2021-11-15 | Procédé de contrôle d’un système de conditionnement thermique |
| FRFR2112024 | 2021-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023083872A1 true WO2023083872A1 (fr) | 2023-05-19 |
Family
ID=79831264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/081292 Ceased WO2023083872A1 (fr) | 2021-11-15 | 2022-11-09 | Procédé de contrôle d'un système de conditionnement thermique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250001834A1 (fr) |
| EP (1) | EP4433316A1 (fr) |
| CN (1) | CN118450995A (fr) |
| FR (1) | FR3129107B1 (fr) |
| WO (1) | WO2023083872A1 (fr) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160257179A1 (en) * | 2011-01-21 | 2016-09-08 | Sanden Corporation | Vehcile air conditioning apparatus |
| EP2933586B1 (fr) | 2014-04-16 | 2018-09-19 | Valeo Systemes Thermiques | Un dispositif de conditionnement thermique d'un espace |
| FR3073175A1 (fr) * | 2017-11-08 | 2019-05-10 | Valeo Systemes Thermiques | Procede de pilotage d'un systeme de conditionnement thermique pour vehicule automobile |
| GB2575546A (en) * | 2018-05-31 | 2020-01-15 | Hanon Systems | Heat flow management device and method for operating a heat flow management device |
| US20200220236A1 (en) * | 2019-01-04 | 2020-07-09 | Hanon Systems | Thermal system layout designed for high cooling capacity at idle condition |
| FR3101282A1 (fr) * | 2019-09-26 | 2021-04-02 | Valeo Systemes Thermiques | Dispositif de gestion thermique d’un véhicule automobile électrique ou hybride comportant un circuit de fluide caloporteur |
| FR3105381A1 (fr) * | 2019-12-18 | 2021-06-25 | Valeo Systemes Thermiques | Procédé de dégivrage d’un circuit de régulation thermique pour véhicule, notamment pour véhicule automobile |
-
2021
- 2021-11-15 FR FR2112024A patent/FR3129107B1/fr active Active
-
2022
- 2022-11-09 US US18/710,426 patent/US20250001834A1/en active Pending
- 2022-11-09 WO PCT/EP2022/081292 patent/WO2023083872A1/fr not_active Ceased
- 2022-11-09 CN CN202280084904.XA patent/CN118450995A/zh active Pending
- 2022-11-09 EP EP22814384.8A patent/EP4433316A1/fr active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160257179A1 (en) * | 2011-01-21 | 2016-09-08 | Sanden Corporation | Vehcile air conditioning apparatus |
| EP2933586B1 (fr) | 2014-04-16 | 2018-09-19 | Valeo Systemes Thermiques | Un dispositif de conditionnement thermique d'un espace |
| FR3073175A1 (fr) * | 2017-11-08 | 2019-05-10 | Valeo Systemes Thermiques | Procede de pilotage d'un systeme de conditionnement thermique pour vehicule automobile |
| GB2575546A (en) * | 2018-05-31 | 2020-01-15 | Hanon Systems | Heat flow management device and method for operating a heat flow management device |
| US20200220236A1 (en) * | 2019-01-04 | 2020-07-09 | Hanon Systems | Thermal system layout designed for high cooling capacity at idle condition |
| FR3101282A1 (fr) * | 2019-09-26 | 2021-04-02 | Valeo Systemes Thermiques | Dispositif de gestion thermique d’un véhicule automobile électrique ou hybride comportant un circuit de fluide caloporteur |
| FR3105381A1 (fr) * | 2019-12-18 | 2021-06-25 | Valeo Systemes Thermiques | Procédé de dégivrage d’un circuit de régulation thermique pour véhicule, notamment pour véhicule automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4433316A1 (fr) | 2024-09-25 |
| FR3129107B1 (fr) | 2024-03-01 |
| US20250001834A1 (en) | 2025-01-02 |
| CN118450995A (zh) | 2024-08-06 |
| FR3129107A1 (fr) | 2023-05-19 |
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