EP4561851A1 - Système et procédé de gestion thermique d'un dispositif de stockage d'énergie électrique d'un véhicule automobile - Google Patents
Système et procédé de gestion thermique d'un dispositif de stockage d'énergie électrique d'un véhicule automobileInfo
- Publication number
- EP4561851A1 EP4561851A1 EP23734279.5A EP23734279A EP4561851A1 EP 4561851 A1 EP4561851 A1 EP 4561851A1 EP 23734279 A EP23734279 A EP 23734279A EP 4561851 A1 EP4561851 A1 EP 4561851A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- temperature
- storage device
- cibie
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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 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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/0073—Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models
-
- 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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
-
- 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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- 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 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 devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3238—Cooling devices information from a variable is obtained related to the operation of the compressor
-
- 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 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
-
- 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 devices
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/328—Cooling devices output of a control signal related to an evaporating unit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
Definitions
- TITLE Thermal management system and method of an electrical energy storage device of a motor vehicle
- the invention relates to a method and a system for managing the heat treatment of a storage device of a motor vehicle.
- the invention also relates to a method and a system for heat treatment of said storage device.
- the invention also relates to a motor vehicle equipped with said system and/or implementing the methods mentioned.
- vehicles with hybrid or electric motors are equipped with a cooling system of an electrical energy storage device supplying at least one element, in particular a motor, of the electric traction chain of the vehicle with electrical energy.
- an electrical energy storage device supplying at least one element, in particular a motor, of the electric traction chain of the vehicle with electrical energy.
- the different modules or cells making up such a storage device also called “battery” or “battery pack”
- battery do not tolerate excessive changes in temperature, it is essential to ensure efficient cooling at the risk of cause premature wear.
- a cooling system implements a refrigerant fluid circuit which is associated with a ventilation, heating and/or air conditioning installation of a passenger compartment of the vehicle making it possible to thermally treat a flow of air outside the vehicle heading towards the passenger compartment.
- a circuit thus makes it possible on the one hand to heat and/or cool the air flow sent inside the ventilation, heating and/or air conditioning installation and, on the other hand, to ensure thermal regulation, in particular cooling, of the storage device.
- the cooling of the electrical energy storage device may have to impact the performance of the ventilation, heating and/or air conditioning installation and vice versa, particularly when the cooling of the passenger compartment and the storage device are simultaneously ordered. This results in particular in imprecise and non-optimized operation of the cooling of the electrical energy storage device and the passenger compartment, requiring one of these cooling systems to be favored to the detriment of the other.
- the invention fits into this context and aims to provide a system and a method for managing the heat treatment of the storage device remedying the above drawbacks.
- the invention aims to ensure refined control of the cooling of the storage device and the temperature of the passenger compartment so as to minimize wear of the storage device while optimizing the comfort of the passenger(s) of the vehicle.
- the invention relates to a method for managing the heat treatment of an electrical energy storage device of a motor vehicle equipped with a ventilation, heating and/or air conditioning installation, a refrigerant fluid circuit of which comprises at least a heat exchanger configured to implement a heat exchange between the refrigerant fluid and an interior air flow intended to be sent into the passenger compartment, a compressor, a heat exchanger configured to implement, directly or indirectly, an exchange thermal between the refrigerant fluid and at least one electrical energy storage device of the vehicle, and a pressure regulating valve.
- the process includes:
- the method may include a step of comparing the measured temperature of the electrical energy storage device with an authorized limit temperature of the storage device, predefined, corresponding to a temperature beyond which premature wear and damage of the storage device storage are observed, the set temperature of the heat exchanger not being limited by the limiting temperature threshold of the heat exchanger when the measured temperature is greater than or equal to the authorized limit temperature of the storage device.
- the method may comprise a step of measuring, by at least one sensor, a temperature of the at least one heat exchanger and a step of evaluating a level of performance of said at least one heat exchanger, the limiting threshold of temperature of the heat exchanger can be adjusted so as to be defined as a function of the temperature of the at least one heat exchanger when the performance level of the at least one heat exchanger is lower than a minimum required performance level , predetermined.
- the step of evaluating the level of performance of the at least one heat exchanger may comprise a sub-step of comparison between a measured temperature of the at least one heat exchanger and a set temperature of the at least one.
- a heat exchanger calculated, to be reached in order to obtain a temperature desired by a user in the passenger compartment, the level of performance being able to be defined as being lower than the minimum level of performance required when the measured temperature differs from the value of the temperature setpoint ⁇ 3°C, or even ⁇ 2°C.
- the method may comprise a sub-step of detecting a state of the vehicle, in particular a state of at least one engine of the vehicle, and/or a driving mode implemented by the vehicle, and a sub-step -step of adjusting the set temperature of the heat exchanger according to said state and/or said mode.
- the invention also relates to a method of heat treatment of an electrical energy storage device of a motor vehicle equipped with a ventilation, heating and/or air conditioning installation, the method comprising all of the steps of management method according to the invention, then at least one step of controlling the compressor and/or the regulation valve so that the heat exchanger implements the calculated setpoint temperature.
- the invention also relates to a system for managing the heat treatment of an electrical energy storage device for a motor vehicle, the system comprising hardware and/or software elements implementing the management method according to the invention, the hardware elements comprising at least one sensor, in particular at least one temperature sensor and a data processing unit capable of receiving measurements from the at least one sensor and configured to cooperate with at least one vehicle regulation device, capable of control the regulation valve and/or the compressor.
- the invention also relates to a heat treatment system of an electrical energy storage device of a vehicle, the system comprising at least one management system according to the preceding claim and the heat treatment system further comprising:
- a refrigerant fluid circuit comprising at least a first heat exchanger configured to implement a heat exchange between the refrigerant fluid and an air flow external to the vehicle and a second heat exchanger configured to implement a heat exchange between the fluid refrigerant and a flow of interior air intended to be sent into the passenger compartment, the circuit further comprising a compressor;
- a heat exchanger configured to implement a heat exchange between the refrigerant fluid and at least one electrical energy storage device of the vehicle, the heat exchanger being mounted in parallel with the second heat exchanger;
- a regulation device configured to control the regulation valve and/or the compressor so that the heat exchanger implements the calculated setpoint temperature.
- the invention also extends to a motor vehicle with hybrid or electric motor comprising at least one storage device electrical energy, in particular an electrical energy storage device capable of powering at least one element of an electric traction chain of the vehicle, and at least one ventilation, heating and/or air conditioning installation, the vehicle being , in addition, equipped with a management system and/or a heat treatment system according to the invention.
- the invention can further extend to a computer program product comprising program code instructions recorded on a computer-readable medium for implementing the steps of the management method and/or for implementing the steps of the method heat treatment according to the invention when said program runs on a computer.
- the invention can extend to a computer program product downloadable from a communications network and/or recorded on a data medium readable by a computer and/or executable by a computer, the latter comprising instructions which , when the program is executed by the computer, lead it to implement the methods according to the invention.
- the invention can further extend to a data recording medium, readable by a computer, on which is recorded a computer program comprising program code instructions for implementing the method according to the invention or on a computer-readable recording medium comprising instructions which, when executed by a computer, cause it to implement at least one of the methods described above.
- the invention finally relates to a signal from a data carrier carrying the computer program product as explained previously.
- Figure 1 schematically represents an embodiment of a vehicle equipped with a heat treatment management system and a heat treatment system of an electrical energy storage device.
- Figure 2 schematically represents an embodiment of a regulation device fitted to the vehicle.
- Figure 3 is a flowchart of an example of execution of a heat treatment management method and a heat treatment method of an electrical energy storage device.
- Figure 4 is a diagram illustrating a situation of unlocking a vehicle equipped with the systems according to the invention.
- Figure 5 is a schematic representation of an alternative embodiment of a vehicle equipped with a heat treatment management system and a heat treatment system of an electrical energy storage device.
- FIGS 1 and 2 schematically illustrate a motor vehicle 1 equipped with an embodiment of a heat treatment system 10, in particular cooling, of an electrical energy storage device 2 of said vehicle 1.
- the vehicle 1 can be with hybrid or electric motorization.
- the vehicle 1 can be of any type, that is to say it can be a private vehicle, a utility vehicle, a truck or a bus.
- vehicle 1 may be an autonomous or non-autonomous vehicle.
- the electrical energy storage device 2, also referred to as a “battery”, “battery module” or even “battery pack” in English, can in particular be intended to power a element of an electric traction chain of the vehicle 1, such as an electric motor, it notably comprises at least one battery cell.
- the vehicle 1 also includes an installation 3 for ventilation, heating and/or air conditioning of the passenger compartment allowing the thermal treatment of a flow of air sent to a passenger compartment of the vehicle 1 so as to heat or cool it.
- the heat treatment system 10 comprises a circuit 101 of refrigerant fluid, in particular a two-phase fluid, which is intended to implement, at a given moment, the heat treatment of a passenger compartment of the vehicle 1, by intermediate of the installation 3 for ventilation, heating and/or air conditioning of the passenger compartment, and/or the heat treatment of the electrical energy storage device 2 of the vehicle 1.
- refrigerant fluid a fluid capable of carrying out the heat treatment, direct or indirect, of a component of the vehicle to be treated.
- upstream refers to a direction of circulation S1 of the refrigerant fluid in the refrigerant fluid circuit 101, illustrated by arrows in Figure 1.
- the refrigerant fluid circuit 101 consists of a closed circuit 101 which comprises at least one main branch 110 on which are arranged a compressor 11, intended to raise the pressure of the refrigerant fluid, at least one first heat exchanger 12, configured to implement a heat exchange between the refrigerant fluid and an exterior air flow FA1 to the passenger compartment, and at least a second heat exchanger 13, configured to thermally treat an interior air flow FA2, distinct from the exterior air flow FA1 , and which is intended to be sent into the passenger compartment of vehicle 1.
- the compressor 11 is in particular an electrically controlled compressor 11. Particularly, the compressor 11 is interposed between the second heat exchanger 13 and the first heat exchanger 12 so as to be arranged upstream of the first heat exchanger 12 along the direction of circulation of the cooling fluid.
- the first heat exchanger 12 is configured to be used as a condenser or as an evaporator depending on the operating mode of the refrigerant fluid circuit 101 operated, that is to say in particular depending on whether an air conditioning mode or a mode heating is implemented.
- the first heat exchanger 12 can be equipped with a bottle.
- the refrigerant fluid circuit 101 may comprise a bottle placed upstream of the first heat exchanger 12, in particular so as to be interposed between the compressor 11 and said exchanger.
- the ventilation, heating and/or air conditioning installation 3 aims to ensure the cooling of the passenger compartment, that is to say when it operates in air conditioning mode
- the second heat exchanger 13 is used as evaporator.
- the first heat exchanger 12 and the second heat exchanger 13 operate in reverse of each other, that is to say that when the second heat exchanger 13 is used as an evaporator, the first heat exchanger 12 operates like a condenser and vice versa.
- the refrigerant fluid which circulates in circuit 101 can thus present different states.
- the refrigerant fluid enters the first heat exchanger 12 in the gaseous state, and, by thermal exchange with the exterior air flow FA1, emerges cooled and in the liquid state.
- the refrigerant fluid enters the second heat exchanger 13 in the two-phase state, captures calories from the interior air flow FA2 sent to the passenger compartment in order to cool it and the refrigerant fluid emerges from the second heat exchanger 13 in the gaseous and heated state.
- the refrigerant fluid circuit 101 also includes a secondary branch 111.
- the secondary branch 111 diverges from the main branch 110 at a point of divergence, located between the first heat exchanger 12 and the second heat exchanger 13, according to the direction of circulation of the fluid refrigerant, and joins this same main branch 110 at a point of convergence located between the second heat exchanger 13 and the compressor 11.
- the secondary branch 111 comprises a heat exchanger 14 thermally coupled to the electrical energy storage device 2 of the vehicle 1.
- the heat exchanger 14 is arranged in parallel with the second heat exchanger 13 from the point of view of the refrigerant fluid.
- the electrical storage device 2 is arranged close to, or advantageously in thermal contact with, the heat exchanger 14, so as to implement a heat exchange between the refrigerant fluid circulating in the secondary branch 111 and said storage device 2 electric, particularly to ensure cooling.
- the heat exchanger 14 may comprise at least one plate and/or at least one flat tube in which the refrigerant fluid is intended to circulate.
- the heat exchanger 14 can be thermally coupled to an additional fluid loop 50, in particular a refrigerant fluid.
- the additional loop 50 comprises a pump 52 and an additional heat exchanger 51, which is thermally coupled with the storage device 2 as explained previously.
- the additional heat exchanger 51 can be of the plate or tube type placed in contact with the storage device 2 and in particular has the function of “chiller”.
- the heat treatment system 10 according to the invention can, in addition, comprise a first expansion member 15 and a solenoid valve 16, arranged upstream of the heat exchanger 14 in the direction of circulation of the refrigerant fluid.
- the solenoid valve 16 are arranged on the secondary branch 111.
- the solenoid valve 16 can be arranged upstream of the first expansion member 15 along the secondary branch 111 of the refrigerant fluid circuit 101.
- the first expansion member 15 can be a thermostatic expansion valve, or TXV expansion valve, from the English acronym “Thermal expansion valve” or “Thermostatic expansion valve”.
- the refrigerant fluid circuit 101 comprises a pressure or flow regulation valve 17, arranged on the secondary branch 111 downstream of the heat exchanger 14 in the direction of circulation of the refrigerant fluid.
- the pressure regulation valve 17 can be of the electronic expansion type, in particular a ball valve or a needle valve, or even an electronic expansion system of the EXV type, also known under the name "Electronic expansion valve” in French. English.
- the pressure regulation valve 17 has variable opening, that is to say it makes it possible to take a variable quantity of refrigerant fluid circulating in the main branch 110 of the circuit 101 to direct it towards the secondary branch 111 , and therefore towards the heat exchanger 14, so as to allow a variation in the temperature thereof. Variable opening of the control valve
- the heat treatment system 10 may comprise a second expansion member 18, disposed upstream of the second heat exchanger 13. Particularly, the second expansion member 18 is interposed between the point of divergence and the second heat exchanger 13.
- the fluid refrigerant circulating in a first portion of the main branch 110 of the circuit 101 between the compressor 11 and the second expansion member 18, is thus subjected to high pressure, while the refrigerant fluid circulating in a second portion of the main branch 110 of the circuit 101 between the second primary expansion member 18 and the compressor 11 is subjected to a low pressure, lower than the high pressure.
- the heat treatment system 10 comprises a management system 20 for the heat treatment of the electrical energy storage device 2.
- the management system 20 comprises hardware and/or software elements capable of implementing a management method 200 of the heat treatment of the electrical energy storage device 2 as explained below.
- the hardware elements may comprise at least one sensor 21, 22, 23, in particular a temperature sensor, and a data processing unit 201, comprising at least one calculator, capable of receiving the measurements carried out by the at least one sensor 21, 22, 23.
- the management system comprises a plurality of sensors 21, 22, 23.
- the heat treatment system 10 also comprises a device for regulation 30, schematically illustrated in Figure 2, configured to control at least the regulation valve 17 and/or the compressor 11 as a function of the measurements resulting from all or part of said sensors 21, 22, 23, in particular so that the heat exchanger 14 implements a set temperature calculated in order to allow suitable cooling of the storage device 2, as explained below.
- the processing unit 201 is able to receive measurements from the sensor(s) 21, 22, 23 and is configured to cooperate with the regulation device 30, in particular in order to transmit data and/or commands to be executed. at the level of the regulation valve 17 and/or the compressor 11.
- the regulation device 30 is configured so as to control at least one degree, or level, of opening of the regulation valve 17, supplying the secondary branch 111, and therefore the heat exchanger 14, in refrigerant fluid, and/or a speed of the compressor 11, in other words a flow rate of the refrigerant fluid in the circuit 101.
- the regulation device 30 can be partly included in the processing unit 201.
- the regulation device 30 comprises a plurality of regulation means 300, each regulation means being able to act on at least one of the compressor 11 and/or the regulation valve 17.
- a regulation means 300 can be a PI regulator, for “proportional, integral”, or a PID regulator, for “proportional, integral, derivative”.
- the regulation device 30 and/or the heat treatment system 10 and/or the processing unit 201 may comprise at least one comparator 350, capable of comparing measured values, in particular temperature, with calculated values and/or or predefined values, recorded on one or more memory units, not shown, of the vehicle 1.
- the invention also relates to a method 200 for managing the heat treatment of the electrical energy storage device 2, on the one hand, and a heat treatment method 100 of said storage device 2 on the other hand, illustrated in Figure 3.
- the management method 200 according to the invention can also be considered as a method of operation or use of the management system 20 of the heat treatment of the storage device 2 as previously explained.
- such a method can be considered as a method of operating or using a vehicle 1 equipped with such a management system 20 as well as a ventilation, heating and/or air conditioning installation 3 and, according to an exemplary embodiment, of a refrigerant fluid circuit 101 as explained above.
- the management method 200 comprises a step E1 of measuring a temperature of the electrical energy storage device 2 Tbatt_m via at least one sensor.
- a first sensor 21 performs at least one temperature measurement Tbatt_m of the electrical energy storage device 2 Tbatt.
- Tbatt_m the temperature measurement
- such a measurement may be an average of temperatures measured via a plurality of thermistors measuring the surface temperature of cells of the storage device 2.
- the method also comprises, simultaneously or successively with the step E1 of measuring the temperature of the storage device 2, a step E6 of measuring a rotation speed R C om P _m of the compressor 1 1.
- a measurement aims in particular to evaluate the importance of the thermal power that can be allocated for the thermal treatment of the electrical energy storage device 2 precisely as a function of the cooling power available on the scale of the refrigerant fluid circuit 101. .
- Such a measurement can, for example, be carried out in real time or at regular time intervals.
- the processing unit 201 executes a step E2 of determining a target temperature Tbatt_cibie corresponding to an optimal theoretical temperature to be reached by the electrical energy storage device 2.
- the processing unit 201 then executes a step E3 of calculating a set temperature TEch_cibie of the heat exchanger 14 to be reached by the latter so that the storage device 2 presents the determined target temperature Tbatt_cibie while optimizing the performance of the ventilation, heating and/or air conditioning installation 3 and/or the heat exchanger 14 as required.
- the processing unit 201 then calculates the cooling power required at the heat exchanger 14 in order to ensure the cooling of the storage device 2 up to the previously determined target temperature Tbatt_cibie.
- the set temperature TEch_cibie of the heat exchanger 14 is defined, in particular for default operation of the method according to the invention, as a function of the difference between the target temperature Tbatt_cibie and the measured temperature Tbatt_m of the storage device 2.
- set temperature TEch_cibie of the heat exchanger 14 is also defined as a function of a limiting temperature threshold TEch_cibie min of the heat exchanger 14 calculated as a function of the measured value of the storage device Tbatt_m and the rotation speed R C om P _m of the compressor 11.
- the limiting temperature threshold TEch_target min of the heat exchanger 14 corresponds to a minimum temperature below which the temperature of the heat exchanger 14 must not fall in order not to affect undesirable manner the heat treatment of the passenger compartment.
- the limiting temperature threshold TEch_cible min of the heat exchanger 14 is thus a limitation of the set temperature TEch_cibie of the heat exchanger 14 aimed at limiting the cooling power required at the level of the heat exchanger 14 in order to ensure the cooling of the storage device 2, in other words slow down the heat treatment of said device, in order to limit the impact observed on the heat treatment of the passenger compartment.
- the target temperature of the storage device 2 remains identical regardless of the desired performance in the passenger compartment, but, due to the limitation imposed, the time necessary to reach said target temperature is extended.
- the limiting temperature threshold TEch_cibie min of the heat exchanger 14 is thus variable and depends on the conditions of use of the vehicle.
- the rotation speed R C om P _m of the compressor 11 makes it possible in particular to evaluate whether the vehicle is in a phase for which the performance of the heat treatment of the passenger compartment is a priority or not.
- the measured temperature Tbatt_m of the storage device 2 makes it possible to define whether the temperature thereof is acceptable or not, as further explained below, to what extent heat treatment is necessary and whether the measured temperature is likely to generate damage.
- the limiting temperature threshold Tech, min target may be minimal.
- “normal conditions” is meant here conditions not representing extreme stress on said installation 3, not requiring operation of the compressor 11 at a high, extreme or limit speed, as further explained below, and/or for which the heat treatment needs of the passenger compartment can be achieved without affecting the operation of the heat treatment of the storage device 2.
- the limitation applied to the set temperature TEch_cibie of the heat exchanger 14 is then less restrictive and the temperature of TEch_cibie setpoint can take lower values since, under such conditions, a significant demand on the cooling power for the thermal treatment storage device 2 is not likely to negatively affect the thermal treatment of the passenger compartment.
- the limiting temperature threshold TEch_cibie min can then be of the order of 15°C.
- the limiting temperature threshold Tech, .min target can be fixed and corresponds to the minimum value of the authorized threshold.
- the value of the limiting temperature threshold Tech, .target min can then be more restrictive and higher.
- the limiting temperature threshold TEC ..target min may have a higher value, for example of the order of 35°C, than if said difference is significant, c that is to say in a case where the storage device 2 presents a strong heating, in which case the limiting temperature threshold TEch_cibie min may have a lower value, for example closer to 15 or 20°C. It is understood that the definition of a “small” or “large” difference between the target temperature Tbatt_cibie and the measured temperature Tbatt_m of the storage device 2 can be defined on the basis of the knowledge of those skilled in the art and/or be predefined by the manufacturer or by a technician working on the vehicle.
- the set temperature TEch_cibie of the heat exchanger 14 to be implemented can initially be defined as a function of the measured value of the storage device Tbatt_m and , if it is detected that such setpoint temperature is strictly lower than the limiting temperature threshold TEch_cibie min of the heat exchanger 14, calculated simultaneously or subsequently, the setpoint temperature TEch_cibie of the heat exchanger 14 is adjusted to be limited by said threshold, it that is to say so as to be equal to said threshold.
- the setpoint temperature TEch_cibie of the heat exchanger 14 to be implemented can be directly defined so as to take into account the limiting temperature threshold TEch_cibie min of the heat exchanger 14 as explained previously.
- the implementation of such a limiting temperature threshold TEch_cibie min of the heat exchanger 14 during the calculation step E3 of the set temperature of the heat exchanger TEch_cibie is indirectly comparable to a limitation of such a temperature as a function of a variable temperature gradient ATech_batt depending on the operating conditions of the vehicle.
- Said temperature gradient ATech_batt corresponds to a difference, that is to say a difference, in temperature between the measured temperature Tbatt_m of the electrical energy storage device 2 and the set temperature Tech_cibie to be reached by the heat exchanger 14.
- the greater the ATech_batt temperature gradient the more sudden the cooling applied to the storage device 2.
- the method may comprise a step E21 of comparing the measured temperature Tbatt_m of the electrical energy storage device 2 with an authorized limit temperature TBatt im of the storage device 2, predefined, corresponding to a temperature beyond which premature wear and damage of the storage device 2 are observed.
- the limitation of the set temperature TEch_cibie of the heat exchanger by the limiting temperature threshold TEch_cibie min of the heat exchanger 14 can then be conditioned on the result of such a comparison.
- the set temperature TEch_cibie of the heat exchanger 14 is not limited by limiting temperature threshold TEC. _min target when the measured temperature TBatt_m is greater than or equal to the authorized limit temperature TBattjim of storage device 2.
- the processing unit 201 and/or the regulation device 30, for example at least one of the comparators 350, can execute such a step of comparing E21 of the measured temperature Tbatt_m of the electrical energy storage device 2 with the authorized limit temperature Bbatt im predefined.
- the authorized limit temperature TBattjim can be predefined by the manufacturer or set by any vehicle system capable of cooperating with the storage device 2, in particular so as to limit or interrupt its operation in the event of overheating.
- the authorized limit temperature TBattjim can be greater than 50°C, for example of the order of 50 to 55°C, in particular of the order of 53 or 54°C.
- the comparison step E21 may comprise a sub-step of comparing the measured temperature Tbatt_m of the electrical energy storage device 2 with a range of acceptable operating temperatures of the storage device TBatt_ok, corresponding to a range operating temperatures authorized storage device, without heating of the storage device or with tolerable heating of it.
- the limitation of the set temperature TEch_cibie of the heat exchanger by the limiting temperature threshold TEch_cibie_min of the heat exchanger 14 is applied when it is detected that the measured temperature Tbatt_m of the electrical energy storage device 2 is included in such a range of acceptable temperatures.
- the range of acceptable temperatures is strictly lower than the authorized limit temperature TBatt im of the storage device 2.
- the range of acceptable temperatures TBatt_ok can be of the order of 40 to 50°C, that is to say for example for a storage device 2 for which a performance defect is observed below 40°C and damage is observed above 55°C.
- the heat treatment power can then be devoted mainly to the electrical energy storage device 2, to the detriment of the comfort of the user and the heat treatment of the passenger compartment only when heating of said device is noted.
- storage 2 considered extreme, such that it would necessarily result in irreversible damage.
- the set temperature of the heat exchanger TEch_cibie is calculated without taking into consideration the limiting temperature threshold TEch_cibie_min of the heat exchanger 14 and the set temperature of the heat exchanger TEch_cibie can be lowered further, that is to say below the limiting temperature threshold TEch_cibie_min, to correct observed heating of the electrical energy storage device 2.
- the set temperature of the heat exchanger TEch_cibie is then calculated only as a function of the measured temperature Tbatt_m of the storage device 2. This results in a greater temperature gradient ATech_batt, not limited, than what was explained previously, which can for example amount to deviations strictly greater than 15°C, or even 20°C or even 30°C.
- the measured temperature Tbatt_m of the electrical energy storage device 2 is not critically high, that is to say that it is strictly lower than the authorized limit temperature TBatt im, for example that its operation is acceptable
- the heat treatment of the electrical energy storage device 2 is limited, and by extension that the temperature gradient ATech_batt is also limited so as to favor the heat treatment of the passenger compartment before the heat treatment of the storage device 2 of electrical energy.
- the observed ATech_batt temperature gradient can, for example, be strictly less than 10°C, for example of the order of 5°C so as to implement moderate heat treatment of the storage device 2 n having no impact on the comfort of the passenger compartment.
- the management method 200 according to the invention thus advantageously makes it possible to adapt the cooling power required at the level of the storage device 2 in order to requisition only the power necessary to lower the temperature of said device towards the target temperature Tbatt_cibie.
- the impact conventionally observed on the ventilation, heating and/or air conditioning installation 3 is reduced unlike conventional heat treatment processes operating according to an all or nothing principle, that is to say according to an ON/OFF system requiring significant cooling powers in order to respond to extreme heating of the storage device 2.
- conventionally heat treatment systems can operate according to all-or-nothing principles, or “ON/OFF”, in which the cooling of the storage device 2 can be completely omitted as long as it does not exceed a predefined temperature. , after which a significant and sudden cooling, that is to say with a significant temperature gradient, of the storage device is triggered to the detriment of the heat treatment of the passenger compartment.
- ON/OFF all-or-nothing principles
- the method and the management system according to the invention conversely, make it possible to define a more refined, scalable set temperature of the heat exchanger, which adapts to the circumstances relating to the energy storage device 2 electrical as well as those of the heat treatment of the passenger compartment.
- the cooling of the heat treatment device is thus more gradual and more homogeneous when heating of the storage device 2 is considered acceptable and not likely to cause damage, while sudden cooling, that is to say without limitation of the lowering of the temperature of the heat exchanger 14 and therefore without limitation of the temperature gradient ATech_batt, is only implemented in cases of extreme necessity, for example when the measured temperature Tbatt_m is such that heat exchanger systems security conventionally embedded in the vehicle are about to block or limit functions of the vehicle to protect the storage device 2.
- the set temperature TEch_cibie of the heat exchanger 14, the limiting temperature threshold TEch_cibie min of the heat exchanger 14 and, by extension, the temperature gradient ATech_batt observed are advantageously defined by so as to be scalable depending on the circumstances relating to the passenger compartment and the electrical energy storage device 2, as described above.
- “evolving” we mean that these are updated or defined in real time or at intervals of predefined time, for example at each calculation time step, depending on the measurements received by the processing unit 201.
- the management method 200 can be refined so as to take into consideration more precisely the thermal treatment of the passenger compartment and thus define the set temperature TEch_cibie of the heat exchanger 14 more precisely.
- the method can, in addition, comprise a step E4 of measuring a temperature THEx_m of at least one heat exchanger, in particular a heat exchanger implementing a heat exchange with a flow of air sent towards the passenger compartment, and a step E5 of evaluating a level of performance of said heat exchanger.
- the limiting temperature threshold TEch_cibie_min of the heat exchanger 14 can then be adjusted E52 so as to be defined as a function of the temperature THEx_m of the at least one heat exchanger 13 when the performance level of the latter is less than a minimum required level of performance, predetermined.
- the heat exchanger considered is the second heat exchanger 13, involved in the heat treatment of the interior air flow FA2, sent to the passenger compartment and operating as an evaporator within the installation 3 of ventilation, heating and/or air conditioning.
- the measurement of the temperature THEx_m of the second heat exchanger 13 can, for example, be carried out by a second sensor 23, the latter measuring in particular a temperature of the air leaving said exchanger or measuring a surface temperature of the exchanger, for example by means of a sensor placed on a fin of said exchanger.
- the evaluation E5 of the performance level of the second heat exchanger 13 can be carried out by comparison, by the processing unit 201 and/or a comparator 350, between the measured temperature THEx_m of the second heat exchanger 13 and a set temperature THEx_cibie that the second heat exchanger 13 must implement in order to obtain a desired temperature Thab by the user in the passenger compartment.
- the method can include a comparison sub-step E51 between the measured temperature THEx_m of the second heat exchanger 13 and said set temperature THEx_cibie, the latter being able to be calculated and/or stored on a memory unit by the management system or by any system relating to the ventilation, heating and/or air conditioning installation 3 included in the vehicle.
- step E5 can, at least in part, be carried out simultaneously with measurement step E1 and/or with comparison step E21 and/or with determination step E2 of the target temperature Tbatt_cibie of the storage device 2.
- the performance level can be defined in percentages or, alternatively, according to a binary system in which a performance level of the second heat exchanger 13 is considered to be achieved or not.
- the performance level of the second heat exchanger can, for example, be defined as being lower than a minimum required performance level when the measured temperature THEx_m differs from the value of the set temperature. For example, we can consider that the level of performance is acceptable when the measured temperature THEx_ m differs from the set temperature by ⁇ 3°C, or even ⁇ 2°C, or even ⁇ 1.5°C or even ⁇ 1° VS .
- the management method 200 thus makes it possible to adapt the operation of the heat treatment system 10 in order to further prioritize the cooling of the passenger compartment when the performance of the second heat exchanger 13 is judged to be lower than a prerequisite performance threshold without completely interrupting the heat treatment of the electrical energy storage device 2.
- a such a principle can in particular have the function of confirming data relating to the situation of the passenger compartment, in particular the measured rotation speed Rcom P _m of the compressor 11. Such a situation can, for example, be observed when starting the vehicle, particularly in the event of high ambient temperatures outside the vehicle.
- the limitation of the set temperature TEch_cibie of the heat exchanger as a function of the measured temperature THEx_m can be implemented by the processing unit 201 and makes it possible to impose a limit on the power of cooling requisitioned at the level of the heat exchanger 14 for the thermal treatment of the electrical energy storage device 2 when the situation requires it, in particular when the performance of the thermal treatment of the passenger compartment is likely to be compromised and/or when the cooling power required for the heat treatment of the passenger compartment is significant.
- the limiting temperature threshold Tech. _target_min can be defined as a function of operating temperature limit values of the second heat exchanger 13, such as a minimum operating temperature aimed at preventing a risk of icing of the second heat exchanger 13.
- a minimum temperature of operation can be of the order of 3°C.
- the method according to the invention can optionally comprise a comparison step E61 of the rotation speed R C om P _m measured with a maximum rotation speed R C om P _max of the compressor and/or a limit rotation speed Rcom P _iim, predefined, for example imposed by the manufacturer.
- maximum speed a rotation speed higher than a compressor 11 considered is able to implement and by "limit speed” a highest speed authorized by the vehicle 1 or any system of the vehicle 1 able to cooperate with said compressor 11, for example for reasons of heating or noise generated by it.
- the limit rotation speed R C om P _iim is strictly lower than the maximum rotation speed Rcomp_ _max-
- the process can then be configured so that the set temperature TEch_cibie of the heat exchanger 14 is not limited by the limiting temperature threshold TEch_cibie min of the heat exchanger 14 when the rotation speed R C om P _m of the compressor 11 is strictly lower than the maximum rotation speed R C om P _max of the compressor and/or the limit rotation speed Rcompjim.
- Such a situation can in particular be observed in cases of “normal” use of the ventilation, heating and/or air conditioning installation 3 as described above.
- the limitation TEch_cibie min implemented by the limiting temperature threshold TEC ..target min of the heat exchanger 14 can be lifted when it is detected that the compressor is not operating at maximum its performance and the target temperature TEch_cibie of the heat exchanger 14 to be achieved is only defined as a function of the difference between the target temperature Tbatt_cibie and the measured temperature Tbatt_m of the storage device 2.
- the rotation speed R C om P _m of the compressor 11 is thus representative of the need or not for cooling power at the level of the heat treatment of the passenger compartment and can, in addition, allow a determination of the importance of such a need.
- a similar principle can be applied mutatis mutandis for ranges of predefined rotation speed values representative of different operating situations of the compressor 1 1, in particular such as the
- the performance of the heat exchanger implementing the heat treatment of the passenger compartment in this case the second heat exchanger 14, can conventionally be regulated by the variation in the rotation speed of the compressor 1 1 included in the circuit 101 of refrigerant fluid, the rotation speed being able in particular to be increased when the necessary cooling power is insufficient at said heat exchanger. It follows that, if it is found that cooling power can still be allocated to the heat treatment of the passenger compartment via the regulation of the speed of the compressor 1 1, it is not necessary to limit the set temperature TEch_cibie of the heat exchanger 14 in order to reduce the importance of the cooling power implemented at the level of the storage device 2.
- Such a principle extends mutatis mutandis to the resulting temperature gradient ATech_batt, so that, when the measured rotation speed of the compressor R C om P _m is strictly lower than the maximum rotation speed R C om P _max and/or at the speed rotation limit Rcompjim of it, the observed ATech_batt temperature gradient is not limited and can present high temperatures as explained previously, for example greater than 10°C, even 20°C or even 30°C, corresponding to a significant cooling power at the level of the storage device 2, since the refrigerant circuit is capable of providing additional cooling power, if necessary, to the second heat exchanger 13 for the heat treatment of the passenger compartment via the compressor 11.
- the management method can be configured so as to define the set temperature TEch_cibie of the heat exchanger 14 as a function of a driving mode and/or as a function of a state of at least an engine of vehicle 1.
- the driving modes are, for example, relating to classic driving modes of the “comfort”, “normal” or “sporty” type.
- the state of the at least one engine can be relative, in particular its running or stopping, or even a situation called "power latch" in English, corresponding to a period of time elapsed between switching off the contact and stopping of the vehicle's computers 1 during which the heat treatment of the passenger compartment is no longer necessary and only the heat treatment of the storage device 2 is implemented.
- the management method 200 can then comprise a detection step E7 of a state of at least one engine of the vehicle 1 and/or of a driving mode set in motion. implemented by the vehicle 1, then a sub-step E71 of adjustment of the set temperature TEch_cibie of the heat exchanger 14 as a function of the data relating to such a state and/or mode.
- the present invention also extends to a heat treatment method 100 of the electrical energy storage device 2 of the vehicle 1.
- Such a method comprises the steps of the management method 200 such as explained previously, then at least one control step E8 of the compressor 11 and/or the regulation valve 17 so that the heat exchanger 14 implements the calculated setpoint temperature TEch_cibie.
- the regulation device 30 is able to control, and therefore modify, the rotation speed of the compressor 11 and/or a level, or degrees, of opening of the regulation valve 17 according to needs.
- the control step E8 can thus comprise, initially, a sub-step E81 of calculating a set rotation speed value Rcom P _cibie of the compressor 11 and/or the level, or degrees, of opening Ovalve_target setpoint of the regulation valve 17 to be implemented so that the heat exchanger 14 reaches the desired setpoint temperature TEch_cibie.
- the level, or degrees, of opening O V aive_cibie can be defined as a percentage of a maximum opening capacity of the regulating valve 17.
- a similar principle can extend relative to the target temperature THEx_cibie of the second heat exchanger 13, in order to define the set rotation speed R C om P _cibie to be implemented by the compressor 11.
- the set rotation speed R C om P _cibie of the compressor 11 can be determined using a Proportional/integral regulator 44, on the basis of an error calculation between the desired set temperature of the heat exchanger 13 THEx_cibie and the measured temperature THEx_m.
- the set opening level O V aive_cibie of the regulation valve 17 can then be determined using a Proportional/integral regulator 44, on the basis of an error calculation between the set temperature TEch_cibie of the exchanger heat 14, allowing the thermal treatment of the electrical energy storage device 2, and the measured temperature of the heat exchanger 14.
- the processing unit 201 then transmits, during a transmission sub-step E82, the set rotation speed value R C om P _cibie of the compressor 11 and/or the opening level O V aive_cibie setpoint of the regulation valve 17 to be implemented in the regulation device 30 which controls the compressor 11 and/or the regulation valve 17 in order to apply such values.
- the heat treatment process 100 can be implemented so as to be able to measure, concomitantly with its execution, the rotation speed R C om P _m of the compressor 11 and/or the opening level of the regulation valve 17 0 V aive_m implemented, for example in real time or at a predetermined time interval, by the heat treatment system 10 during the execution of said process.
- such data can be received by the processing unit 201 which then performs the calculations as previously explained and then compares the rotation speed of the compressor 11 and/or the opening level of the regulation valve 17 measured Rcomp_rTi , Ovaive_m with the calculated values Rcomp_cibie, Ovaive_cibie, to be implemented prior to the transmission of a command to the regulation device 30 so as to only transmit a command to be executed to the compressor 11 and/or to the regulation valve only when such different values.
- the set temperature TEch_cibie to be implemented by the heat exchanger 14 is calculated via the management method 200 according to the invention.
- a first regulation means 301, included in the plurality of regulation means 300 of the device regulation 30, can control the regulation valve 17 in order to adjust the opening level and/or a second regulation means 302 included in this same plurality of regulation means 300, can adjust the rotation speed of the compressor 11 as needed so that the heat exchanger 14 reaches such a set temperature.
- a second mode of operation when the compressor 11 is at its maximum capacity, that is to say when it is at its maximum rotation speed R C om P _max or limit Rcompjim, if the temperature of the passenger compartment is not that desired by the user, that is to say here that the second heat exchanger 13 is not at the required performance level, then priority is given to cooling the passenger compartment.
- the heat treatment of the storage device 2 is maintained to a lesser extent and the set temperature TEch_cibie of the heat exchanger 14 to be reached by it is limited by the limiting temperature threshold TEch_cibie min of the heat exchanger 14 calculated as a function of the measured value of the storage device Tbatt_m and the rotation speed R C om P _m of the compressor 11 as described above.
- the resulting ATech_batt temperature gradient observed is then also limited, for example to values strictly lower than 10°C, or even 5°C.
- the cooling power allocated to the heat exchanger 14 is then regulated by adjusting the opening of the regulation valve 17.
- a third regulation means 303 included in the plurality of regulation means 300, can regulate the level of opening O V aive_cibie of the regulation valve 17 so that most of the cooling power is retained on the main branch 110 of the circuit 101 and thus on the heat treatment of the passenger compartment.
- the temperature of the storage device 2 can then be reduced to more suitable values depending on the importance of the difference measured between the threshold temperature and the measured temperature while maintaining priority on cooling the passenger compartment.
- the limiting temperature threshold TEch_cibie min and consequently, the set temperature TEch_cibie of the heat exchanger 14 and the resulting gradient can in particular be scalable according to need.
- the more the electrical storage device 2 is heated that is to say the closer it approaches the authorized limit temperature TBatt im, the more it will require significant cooling.
- the temperature of the heat exchanger 14 is then lowered in order to allow greater cooling.
- the limiting temperature threshold Tech. _min target can then be lowered to allow a greater temperature gradient.
- a third mode of operation if the temperature of the electrical energy storage device 2 continues to heat up beyond the authorized limit temperature TBattjim, for example beyond 53 or 54°C, the limitation is lifted and priority shifts to the heat treatment of storage device 2.
- a fourth mode of operation when the compressor 11 operates at a speed lower than its maximum speed R C om P _max or its limit speed R C om P jim.
- cooling power is then still available for the heat treatment and the limitation of the set temperature TEch_cibie of the heat exchanger 14 can be lifted in order to implement the necessary heat treatment at the level of the electrical energy storage device 2.
- the resulting temperature gradient AEch_batt observed is then not limited and can be significant, for example strictly greater than 10°C, or even 20°C or even 30°C, in particular of the order of 35°C.
- the priority remains the treatment of the passenger compartment in order to maintain user comfort but the heat treatment of the storage device 2 is adapted by lifting the imposed limitation.
- the rotation speed of the compressor 11 being lower than the maximum speed or the limit speed, the refrigerant circuit has cooling power in reserve and the limitation can then be removed.
- the regulation device 30 can then adjust the temperature of the second heat exchanger 13 by modifying the rotation speed of the compressor 11 and/or adjusting the temperature of the heat exchanger 14 by modifying the rotation speed of the compressor 11 and/or by modifying the opening level of the regulation valve 17.
- Figure 4 illustrates an example of operation of a vehicle according to the invention in a unlocking situation.
- the curves illustrated represent in particular the changes in set temperatures and the temperatures measured at the level of the heat exchanger 14, the storage device 2, and the second heat exchanger.
- the curves further illustrate the measured temperature gradient AEch_batt, as explained previously, and the opening level 0 V aive_m of the regulation valve 17 measured in real time.
- the cooling demand is essentially, if not entirely, oriented towards the heat treatment of the passenger compartment, and therefore towards the cooling of the second heat exchanger.
- the compressor speed can then be maximum.
- the cooling power demand of the storage device 2 increases.
- the performance of the second heat exchanger 13 being lower than the required level, here due to the fact that the measured temperature THEx_m is much higher than the set temperature THEx_cibie of the second exchanger required to implement the desired cooling in the passenger compartment, the cooling power allocated to the heat exchanger 14 is limited.
- such a limitation of the target temperature TEch_cibie of the heat exchanger 14 to be achieved results in a temperature gradient AEch_batt which is also limited, in particular to 15°C after 10 minutes.
- the opening level of the control valve can be gradually adjusted so that the measured temperature TEch_m of the heat exchanger slowly approaches the calculated target temperature TEch_cibie, which it must achieve.
- the limitation of the set temperature TEch_cibie of the heat exchanger 14 to be reached, and by extension of the temperature gradient AEch_batt is lifted when the measured temperature Tbatt_m of the storage device 2 is greater than or equal to the authorized limit temperature TBattjim of the device storage 2, here for example set at 51 °C. In the example illustrated, such an overrun is observed in particular between 6 and 11 minutes or between 17 and 22 minutes.
- the temperature gradient AEch_batt is then greater and can present temperatures higher than 20°C, or even 25°C depending on the need in order to concentrate the cooling power towards the electrical energy storage device 2.
- the set temperature TEch_cibie of the heat exchanger 14, not shown, and therefore the temperature gradient AEch_batt, are adjusted via the opening level Ovalve_target imposed on the regulation valve 17, so that the higher the temperature measured TBatt_m of the battery increases, the greater the temperature gradient AEch_batt authorized.
- the cooling power can then be concentrated again towards the treatment thermal of the passenger compartment and the opening level O V aive_cibie of the regulation valve 17 can be reduced.
- the second heat exchanger 13 presents a temperature THEx_m close, or even equal, to its target temperature THEx_cibie, in other words it presents performance at a suitable level.
- the rotation speed of the compressor can then be reduced to values lower than its maximum rotation speed or its rotation limit speed.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2207628A FR3138069B1 (fr) | 2022-07-25 | 2022-07-25 | Système et procédé de gestion thermique d’un dispositif de stockage d’énergie électrique d’un véhicule automobile |
| PCT/EP2023/067098 WO2024022686A1 (fr) | 2022-07-25 | 2023-06-23 | Système et procédé de gestion thermique d'un dispositif de stockage d'énergie électrique d'un véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4561851A1 true EP4561851A1 (fr) | 2025-06-04 |
Family
ID=83354958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23734279.5A Pending EP4561851A1 (fr) | 2022-07-25 | 2023-06-23 | Système et procédé de gestion thermique d'un dispositif de stockage d'énergie électrique d'un véhicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4561851A1 (fr) |
| CN (1) | CN119630544A (fr) |
| FR (1) | FR3138069B1 (fr) |
| WO (1) | WO2024022686A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118970280B (zh) * | 2024-07-30 | 2025-09-30 | 浙江晶科储能有限公司 | 储能系统及其控制方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656890B (zh) * | 2017-03-27 | 2021-07-20 | 翰昂系统株式会社 | 车辆用空调装置 |
| FR3117955B1 (fr) * | 2020-12-18 | 2023-06-02 | Renault Sas | Système de refroidissement et système de gestion thermique pour un véhicule automobile. |
| CN113858910B (zh) * | 2021-08-26 | 2023-08-29 | 浙江智马达智能科技有限公司 | 一种电池板式换热器的电子膨胀阀开度控制方法和系统 |
| CN113858909B (zh) * | 2021-08-26 | 2023-08-29 | 浙江智马达智能科技有限公司 | 一种电动压缩机转速控制方法和系统 |
-
2022
- 2022-07-25 FR FR2207628A patent/FR3138069B1/fr active Active
-
2023
- 2023-06-23 WO PCT/EP2023/067098 patent/WO2024022686A1/fr not_active Ceased
- 2023-06-23 CN CN202380056540.9A patent/CN119630544A/zh active Pending
- 2023-06-23 EP EP23734279.5A patent/EP4561851A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN119630544A (zh) | 2025-03-14 |
| FR3138069A1 (fr) | 2024-01-26 |
| WO2024022686A1 (fr) | 2024-02-01 |
| FR3138069B1 (fr) | 2024-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR3087708A1 (fr) | Installation de gestion thermique d'un vehicule | |
| EP2417337A1 (fr) | Dispositif de refroidissement pour véhicule automobile | |
| EP4016700A1 (fr) | Système de refroidissement et système de gestion thermique pour un véhicule automobile | |
| EP4561851A1 (fr) | Système et procédé de gestion thermique d'un dispositif de stockage d'énergie électrique d'un véhicule automobile | |
| EP4069534B1 (fr) | Procédé de régulation d'un circuit de fluide réfrigerant | |
| FR3077377A1 (fr) | Procede de controle d'un systeme de traitement thermique d'un element d'une chaine de traction electrique de vehicule | |
| EP2651674B1 (fr) | Système et procédé de commande d'un système d'air climatisé pour véhicule automobile | |
| FR2973298A1 (fr) | Procede de regulation thermique d'une batterie haute tension de traction d'un vehicule hybride | |
| EP2699434A1 (fr) | Procede de controle d'un systeme de conditionnement thermique d'un habitacle d'un vehicule. | |
| EP4522435B1 (fr) | Procédé et système de régulation de la présence de buée sur au moins un vitrage d'un véhicule | |
| EP1403107A1 (fr) | Installation de climatisation comprenant un dispositif électronique de contrôle | |
| WO2023061788A1 (fr) | Procédé et un système de gestion du traitement thermique d'au moins un élément d'une chaîne d'entraînement électrique d'un véhicule à motorisation électrique ou hybride | |
| FR3132793A1 (fr) | Systeme de pre-conditionnement thermique de batterie d’un vehicule automobile, procede et vehicule sur la base d’un tel systeme | |
| EP4479692B1 (fr) | Dispositif et procédé de réfrigération | |
| FR3115733A1 (fr) | Procédé de régulation d’un détendeur électronique d’un système de climatisation et système de climatisation associé | |
| EP3870819A1 (fr) | Procede d'ouverture anticipee d'un thermostat froid dans un systeme de refroidissement d'un moteur | |
| WO2025219068A1 (fr) | Procédé de gestion d'un système de gestion thermique, et système de gestion thermique associé | |
| FR3144547A1 (fr) | Procédé de contrôle pour la maximisation de la puissance thermique | |
| FR3153034A3 (fr) | Engin comprenant un habitacle de pilotage et comprenant une pompe à chaleur permettant le dégivrage d’un échangeur en mode chauffage | |
| FR3153030A3 (fr) | Engin comprenant un habitacle de pilotage et comprenant une pompe à chaleur permettant le chauffage de l’habitacle durant un dégivrage | |
| EP2156972A1 (fr) | Procédé et système de contrôle du fonctionnement d'une boucle d'air conditionné | |
| FR3164652A1 (fr) | Procédé de gestion thermique pour véhicule automobile. | |
| FR3153037A3 (fr) | Engin comprenant un habitacle de pilotage et comprenant une pompe à chaleur permettant une pluralité de modes de fonctionnement | |
| FR3163970A1 (fr) | Procede de detection d’une anomalie de pompe a eau et de reconfiguration d’un groupe electromoteur | |
| FR3149449A1 (fr) | Procédé de commande d’un alternateur de véhicule automobile. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250213 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20260202 |