WO2023217702A1 - Thermomanagementsystem für ein kraftfahrzeug und kraftfahrzeug mit einem solchen - Google Patents
Thermomanagementsystem für ein kraftfahrzeug und kraftfahrzeug mit einem solchen Download PDFInfo
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- WO2023217702A1 WO2023217702A1 PCT/EP2023/062127 EP2023062127W WO2023217702A1 WO 2023217702 A1 WO2023217702 A1 WO 2023217702A1 EP 2023062127 W EP2023062127 W EP 2023062127W WO 2023217702 A1 WO2023217702 A1 WO 2023217702A1
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- WIPO (PCT)
- Prior art keywords
- battery
- connection
- circuit
- cooler
- bypass
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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
- B60H1/32—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
-
- 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
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
-
- 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
- B60H1/00814—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
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
-
- 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
- B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating devices the heat being derived from the propulsion plant other than from cooling liquid of the plant
- B60H1/143—Heating, cooling or ventilating devices the heat being derived from the propulsion plant other than from cooling liquid of the plant the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- 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
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
-
- 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
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
-
- 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
- the invention relates to a thermal management system with a temperature control circuit and a refrigeration circuit that interacts with it.
- the thermal management system is used to control the temperature of vehicle components and to control the temperature of a vehicle passenger compartment.
- the invention relates to a motor vehicle with such a thermal management system.
- the unpublished German patent application 10 2021 127 770.1 is directed to a thermal management system. If rapid heating of one or more drive motors 35 is desired in this thermal management system, see for example FIG. 22, then a temperature control circuit can be formed in which the cooler 32 is bypassed so that the heat remains in the temperature control circuit. This bypassing of the cooler 32 can be achieved by forming a bypass of the cooler 32 via a connecting line 56, a battery pump 43, a battery bypass line 54 and a valve 141.
- a thermal management system for a motor vehicle with a motor circuit in which at least a drive motor, a first connection or a first node, a cooler, a second connection or a second node and a motor circuit pump are arranged in series ; a battery string having a chiller and, in series therewith, a bypass-battery parallel circuit with a traction battery and a battery bypass parallel thereto, wherein the chiller can be flowed through fluidly from the battery string by a refrigeration circuit; wherein the first connection in the motor circuit is arranged downstream of the drive motor and upstream of the cooler and coolant can be selectively introduced into the battery string at the first connection by means of a first valve device; wherein the second connection is arranged downstream of the cooler and upstream of the drive motor and a second valve device is arranged on the second connection by means of which coolant can optionally be conducted to the drive motor and / or the chiller and the traction battery can be connected to form a ring-
- the thermal management system has a second cooler bypass, which branches off from the motor circuit downstream of the drive motor and upstream of the cooler and opens into the motor circuit downstream of the cooler and upstream of the drive motor.
- This has the advantage that the second cooler bypass provides one for the Drive motor's own bypass option for the cooler is created, which is particularly advantageous for rapid warm-up operation of the drive motor because a circuit is created in which self-heating of the drive motor is possible, while the thermal energy of the drive motor is held in this circuit and is not released into the environment .
- This can be increased by designing the second cooler bypass with a smaller flow cross section compared to the first cooler bypass, so that the circulated coolant heats up even faster.
- This also makes it possible to use the first cooler bypass for other purposes, for example to form a battery circuit for heating a vehicle passenger compartment using an electric heater located in the battery circuit.
- an electric heater is arranged in the battery string. This can be used to generate heating energy when the waste heat from heat sources such as the drive battery or drive motors is not sufficient.
- the second cooler bypass is free of heat sinks or heat sources.
- the second cooler bypass is exclusively a line in the form of a hose, a pipeline or a passage in a block of material or the like.
- the second cooler bypass flows into the second connection.
- a battery pump is also arranged in the battery string.
- a second coolant pump is available so that two independent circuits can be formed.
- the thermal management system is further equipped with a capacitor string which runs between the second connection and the first connection, the capacitor string having a capacitor and the capacitor, being fluidly separated from the capacitor string, can also be flowed through by the refrigeration circuit. This integration of the liquid-cooled capacitor makes it possible to heat the traction battery, bypassing the cooler.
- the second valve device has at least three switching positions, with the battery string being connected in series with the drive motor in a first switching position, and the chiller and the bypass battery being connected in parallel to the ring-like closed battery circuit in a second switching position can be connected and the second cooler bypass is blocked, and in a third switching position the chiller and the bypass battery can be connected in parallel to the ring-like closed battery circuit and the second cooler bypass is connected in series with the drive motor.
- the invention provides a motor vehicle with such a thermal management system.
- Figure 1 shows a temperature control circuit according to a first exemplary embodiment of the invention
- Figure 2 shows a temperature control circuit according to a second exemplary embodiment of the invention
- Figure 3 shows a temperature control circuit according to a third exemplary embodiment of the invention
- Figure 4 shows a temperature control circuit according to a fourth exemplary embodiment of the invention.
- Figure 5 shows a temperature control circuit according to a fifth exemplary embodiment of the invention.
- Figure 6 shows a first operating state of the thermal management system
- Figure 7 shows a second operating state of the thermal management system
- Figure 8 shows a third operating state of the thermal management system
- Figure 9 shows a fourth operating state of the thermal management system
- Figure 10 shows a fifth operating state of the thermal management system
- Figure 11 shows a sixth operating state of the thermal management system
- Figure 12 shows a seventh operating state of the thermal management system
- Figure 13 shows an eighth operating state of the thermal management system
- Figure 14 shows a ninth operating state of the thermal management system
- Figure 15 shows a tenth operating state of the thermal management system
- Figure 16 shows an eleventh operating state of the thermal management system.
- FIG. 1 shows a temperature control circuit 1 according to an exemplary embodiment of the invention. This can be installed in an electrified motor vehicle, not shown, in particular a passenger car.
- the temperature control circuit 1 interacts with a refrigeration circuit 2, which is only indicated in FIG. 1.
- a refrigeration circuit 2 for the refrigeration circuit 2, for example, one of the refrigeration circuits known from DE 10 2021 117 787 A1 or a similar refrigeration circuit can be used.
- the temperature control circuit 1 comprises a motor circuit 3, in which a first connection 4 in the form of a first valve device 5, a cooler 6, a second connection 7 in the form of a second valve device 8, a motor circuit pump 9 and a drive parallel connection from a first drive motor 10, an optional, second drive motor 11 and a first power electronics component 12 are arranged in series, so that when the first and second valve devices 5, 8 are switched through accordingly, these components form a closed circuit in which coolant can be circulated when the motor circuit pump 9 is activated which is, for example, water mixed with additives.
- a second power electronic component 13 is connected in series upstream of the first drive motor 10.
- the drive parallel connection thus includes the first drive motor 10, the optional one second drive motor 11, the power electronics component 12 and the power electronics component 13.
- the drive motor 10 and the power electronics component 13 are arranged in series with one another.
- This series circuit, the optional second drive motor 11 and the power electronics component 12 are connected in parallel with each other.
- the first and second power electronics components 12, 13 can each be a component from, for example, a vehicle-internal charger, an inverter, a DC-DC converter or a control device.
- a fan 14 is assigned to the cooler 6 in a known manner.
- a compensating tank line 15 branches off from the cooler 6 and has a compensating tank 16 and opens into the motor circuit 3 at a point downstream of the cooler 6 and upstream of the second connection 7.
- the flow direction of the coolant is predetermined by the delivery direction of the motor circuit pump 9.
- a capacitor string 17 is provided between the second connection 7 and the first connection 4.
- the capacitor string 17 branches off from the motor circuit 3 downstream of the motor circuit pump 9 and leads to the first connection 4. More precisely, the capacitor string 17 is connected at the upstream end to the upstream point of the drive parallel circuit. At the downstream end, the capacitor string is connected to the first valve device 5, but with a different connection point of the first valve device 5 than the drive parallel connection.
- a capacitor 18 is arranged in the capacitor string 17.
- the condenser 18 is a heat exchanger through which coolant from the refrigeration circuit 2 and coolant from the temperature control circuit 1 can flow. The refrigerant and the coolant in the condenser 18 are fluidly separated from one another and in heat exchange each other. The capacitor 18 is therefore a so-called liquid-cooled capacitor.
- the first connection 4 from which a battery strand 19 branches off, is arranged downstream of the drive motor 10.
- the course of the battery string 19 is indicated in FIG. 1 by a dashed line.
- the first connection 4 is formed by the first valve device 5, but it should be noted that this does not necessarily have to be the case.
- the first connection 4 can also simply be a line branch and the first valve device can be formed in the form of two proportional or shut-off valves (one in the battery string 19 and the other downstream of the first connection 4 in the motor circuit 3).
- the battery string 19 there are an electric heater 20, a chiller 21, a battery pump 22, a battery bypass valve 23 and a bypass battery parallel circuit consisting of a traction battery 24 and a parallel battery bypass 25 and downstream of the Bypass battery parallel connection is arranged in series with a first one-way valve 26, in particular arranged in series in the order mentioned.
- a second one-way valve 27 is arranged downstream of the traction battery 24 in series with the traction battery 24 and upstream of the connection to the battery bypass 25.
- the one-way valve 26 only allows a flow in the direction from the battery pump 22 towards the second connection 7 and blocks a flow in the opposite direction.
- the one-way valve 26 only allows a flow in the direction from the battery pump 22 towards the second connection 7 and blocks a flow in the opposite direction.
- the chiller 21 is a heat exchanger that transfers heat energy between the coolant of the refrigeration circuit 2 and the coolant of the temperature control circuit 1.
- the refrigerant and the coolant flow fluidly
- the chiller 21 is located separately from one another and in heat exchange with one another.
- the traction battery 24 has a large number of electrochemical storage cells, which store electrical energy and provide it at least for driving the motor vehicle.
- the storage cells and thus the traction battery 24 are rechargeable.
- These storage cells are tempered, i.e. heated or cooled, by a temperature control device, for which purpose this temperature control device is designed to allow coolant to flow through it.
- a coolant flow coming from the battery pump 22 can be guided either into the battery bypass line 25 or through the traction battery 24. Intermediate positions are also possible, so that the battery bypass line 25 and the traction battery 24 are flowed through at the same time.
- the second connection 7 is provided downstream of the first one-way valve 26.
- the battery string 19 can optionally be connected to a point in the motor circuit 3 that is downstream of the cooler 6 and upstream of the motor circuit pump 9.
- a circulation line 28 is provided, which leads from the second connection 7 back to the battery string 19 to a point between the first connection 4 and the chiller 21, in particular between the first connection 4 and the electrical heater 20.
- a third connection 29 is provided, which connects the battery string 19 at a point between the chiller 21 and the battery pump 22 with a point in the motor circuit 3 downstream of the first connection 4 and upstream of the cooler 6.
- the third connection includes a connecting line 30 without a valve, but a valve could also be provided.
- a first cooler bypass 31 can be formed via the third connection 29, the battery pump 22, the battery bypass valve 23, the battery bypass 25 and the second connection 7, which is indicated by a dash-dot line .
- a second cooler bypass 32 is provided, which in the exemplary embodiment shown is designed as a line that is free of heat sources or heat sinks.
- the second cooler bypass 32 leads from a point in the engine circuit 3 downstream of the first connection 4 and upstream of the cooler 6, more precisely from a point in the engine circuit 3 downstream of the third connection 29 and upstream of the cooler 6 to the second connection 7.
- the first valve device 5 is a proportional valve with the following four basic positions:
- the second valve device 8 is a proportional valve with the following three basic positions:
- a first switching position which is shown in FIG. 1, in which coolant from the battery string 19 is completely directed to the motor circuit pump 9.
- the circulation line 28, the second cooler bypass 32 and a branch of the motor circuit 3 coming from the cooler 6 are blocked at the second connection 7.
- a second switching position in which the coolant flow coming from the battery strand 19 is completely directed into the circulation line 28, so that a ring-like battery cooling circuit 33 (marked by a dash-colon line) is formed, in which the components of the battery string 19 can flow through coolant in series and in the form of a ring-like circuit.
- the coolant flow coming from the cooler 6 is completely routed to the motor circuit pump 9.
- the second cooler bypass 32 is blocked at the second connection 7.
- a third switching position in which the coolant flow coming from the battery strand 19 is completely directed into the circulation line 28, so that the battery cooling circuit 33, which can flow through in a ring, is formed.
- the coolant flow coming from the second cooler bypass 32 is completely directed to the motor circuit pump 9.
- the coolant flow coming from the cooler 6 is blocked at the second connection 7.
- a temperature sensor 34 is provided between the second connection 7 and the motor circuit pump 9, a temperature sensor 35 in the connecting line 30 and a temperature sensor 36 between the battery pump 22 and the battery bypass valve 23.
- FIG. 2 shows a temperature control circuit 101 according to a second exemplary embodiment of the invention.
- This temperature control circuit 101 differs from the temperature control circuit 1 from FIG. 1 only in that it has a modified expansion tank line 115. This has the expansion tank 16 and branches off from the cooler 6. At a point downstream of the second connection 7 and upstream of the motor circuit pump 9, the expansion tank line 115 flows back into the motor circuit 3.
- the temperature control circuit 101 corresponds to the temperature control circuit 1, which is why reference is made to its description in order to avoid repetitions.
- FIG. 3 shows a temperature control circuit 201 according to a third exemplary embodiment of the invention.
- This temperature control circuit 201 differs from the temperature control circuit 1 from FIG. 1 only in that the one-way valve 26 is omitted and instead a one-way valve 37 is arranged in the circulation line 28, which only allows a flow of coolant from the second connection 7 to the point between the first connection 4 and the chiller 21 allows.
- the temperature control circuit 201 corresponds to the temperature control circuit 1, which is why reference is made to its description in order to avoid repetitions.
- FIG. 4 shows a temperature control circuit 301 according to a fourth exemplary embodiment of the invention.
- This temperature control circuit 301 differs from the temperature control circuit 101 from FIG. 2 only in that the temperature sensors 34 and 35 are omitted. Instead, a temperature sensor 38 is provided between the motor circuit pump 9 and the drive parallel circuit, i.e. downstream of the motor circuit pump 9 and upstream of the drive parallel circuit. In addition, a temperature sensor 39 is provided, which is provided in the motor circuit 3 at a point downstream of the branch of the second cooler bypass 32 and upstream of the cooler 6.
- FIG. 5 shows a temperature control circuit 401 according to a fifth exemplary embodiment of the invention.
- This temperature control circuit 401 differs from the temperature control circuit 301 from FIG. 4 in that at the second connection 7 instead of the second valve device 8 in the form of a 5/3-way valve in the fifth exemplary embodiment there is a second valve device 408 in the form of a 5/4-way -Valve is provided. This means that the one-way valve 26 of the fourth exemplary embodiment can be omitted.
- the second valve device 408 is a proportional valve with the following four basic positions:
- the temperature control circuit 401 corresponds to the temperature control circuit 301, which is why reference is made to its description in order to avoid repetitions.
- FIGS. 6 to 16 Various operating states are shown in FIGS. 6 to 16, all of which are applicable to the above exemplary embodiments.
- coolant flows through the coolant strands shown as solid lines, i.e. coolant is in motion relative to the strands.
- coolant there is no flow through the coolant strands shown with dashed lines or the coolant is stationary in these strands compared to the strands.
- a first operating state based on the temperature control circuit 201 is shown in FIG.
- the first valve device 5 is in its first switching position
- the second valve device 8 is in its first switching position
- the motor circuit pump 9 is active
- the battery pump 22 is active.
- the capacitor 18 and the drive parallel circuit are connected in parallel to one another.
- This capacitor drive parallel connection is in series with the first valve device 5, the battery pump 22 and the bypass battery parallel connection.
- the chiller 21 is bypassed.
- the second valve device 8 and the motor circuit pump 9 connect in series downstream.
- the battery string 19 is blocked on the first valve device 5.
- the flow through the circulation line 28, the second cooler bypass 32 and the cooler 6 is also blocked.
- This operating state can be used, for example, in a warm-up phase in order to warm up the drive motors 10, 11 to an operating temperature using waste heat from the traction battery 24 (for example after a stationary charging process).
- This operating state can also be used to heat the traction battery 24 at cold outside temperatures using waste heat from the drive motors 10, 11 (while driving) and/or the capacitor 18.
- Flow ratio between traction battery 24 and battery bypass 25 can be adjusted via the battery valve 23.
- a second operating state is shown in FIG. 7 using the temperature control circuit 1.
- This operating state differs from the operating state from FIG. 7 only in that the capacitor string 17 is blocked in the second operating state.
- the temperature control circuit 1 is not in heat exchange with the refrigeration circuit 2 either via the chiller 21 or via the condenser 18.
- FIG. 1 A third operating state, based on the temperature control circuit 201, is shown in FIG.
- the first valve device 5 is in its first switching position
- the second valve device 8 is in its third switching position
- the motor circuit pump 9 is active
- the battery pump 22 is active.
- the capacitor 18 and the drive parallel circuit are connected in parallel to one another.
- This capacitor-drive parallel connection is in series with the second cooler bypass 32 and the motor circuit pump 9, through which flow occurs in a closed circuit. The flow through the cooler 6 is blocked.
- the battery circuit 33 is formed without a significant exchange of coolant with the engine circuit 3, i.e. the battery circuit 33 is separated from the engine circuit 3 at the first and second connections 4 and 7. Essentially no coolant exchange takes place at the third connection 29.
- This operating state can be used, for example, in a warm-up phase in order to heat the drive motors 10, 11 as quickly as possible with their own heat plus thermal energy from the capacitor 18.
- thermal energy is prevented from being released into the environment but instead remaining in the motor circuit 3.
- the traction battery can be heated by means of the electric heater 20 or thermal energy can be supplied to the refrigeration circuit 2 via the chiller 21 for heating a vehicle passenger compartment via the refrigeration circuit 2.
- FIG. 1 A fourth operating state, based on the temperature control circuit 1, is shown in FIG.
- the first valve device 5 is in its first switching position
- the second valve device 8 is in its second switching position and the motor circuit pump 9 is active and the battery pump 22 is active.
- the capacitor 18 and the drive parallel circuit are connected in parallel to one another.
- This capacitor-drive parallel connection is in series with the cooler 6 and the motor circuit pump 9, which flow through in a closed circuit. The flow through the second cooler bypass 32 is blocked.
- the battery circuit 33 is formed without a significant exchange of coolant with the engine circuit 3, i.e. the battery circuit 33 is separated from the engine circuit 3 at the first and second connections 4 and 7. Essentially no coolant exchange takes place at the third connection 29.
- This operating state can be used, for example, to cool the drive motors 10, 11 via the cooler 6 if waste heat is to be dissipated into the environment.
- the traction battery can be heated simultaneously and separately using the electric heater 20.
- FIG. 10 shows a fifth operating state based on the temperature control circuit 1. This operating state differs from the operating state from FIG. 8 only in that in the fifth operating state the first Valve device 5 is in its second switching position, whereby the capacitor string 17 is blocked.
- FIG. 9 A sixth operating state, based on the temperature control circuit 1, is shown in FIG. This operating state differs from the operating state from FIG. 9 only in that in the fifth operating state the first valve device 5 is in its second switching position, whereby the capacitor string 17 is blocked.
- a seventh operating state, based on the temperature control circuit 1, is shown in FIG.
- the first valve device 5 is in its third switching position
- the second valve device 8 is in its first switching position
- the motor circuit pump 9 is active
- the battery pump 22 is active.
- the capacitor string 17 is blocked.
- the drive parallel connection, the battery string 19, the second valve device 8 and the motor circuit pump 9 are connected in series to form a closed flow-through circuit.
- the traction battery 24 or the vehicle passenger compartment can be heated via the chiller 21 using waste heat from the drive motor 10, for example while driving in cold ambient conditions.
- FIG. 13 shows an eighth operating state based on the temperature control circuit 1.
- This operating state differs from the operating state from Figure 12 only in that in the eighth operating state the first valve device 5 is in its fourth switching position, whereby the capacitor 18 and the drive parallel circuit are parallel to one another are switched.
- This capacitor-drive parallel connection is in series with the battery string 19 etc. as described in Figure 12.
- FIG. 1 A ninth operating state, based on the temperature control circuit 1, is shown in FIG.
- the first valve device 5 is in its fourth switching position
- the second valve device 8 is in its third switching position
- the motor circuit pump 9 is active and the battery pump 22 is not active.
- the capacitor 18 and the drive parallel circuit are connected in parallel to one another.
- This capacitor drive parallel connection, the first valve device 5, the electric heater 20, the chiller 21, the third connection 29, the second cooler bypass 32, the second valve device 8 and the motor circuit pump 9 are connected in series and form a closed circuit circuit off. The flow through the bypass battery parallel connection, the cooler 6 and the circulation line 28 are blocked.
- This operating state is used primarily when cooling or heating the traction battery 24 is not required and waste heat from the capacitor 18 and/or the drive motor 10 is to be used to heat the vehicle passenger compartment (via the chiller 21).
- the second cooler bypass 32 the waste heat from the capacitor-drive parallel connection is kept in the temperature control circuit 1 and is not released into the environment.
- FIG. 1 A tenth operating state, based on the temperature control circuit 1, is shown in FIG.
- the first valve device 5 is in its third switching position
- the second valve device 8 is in its second switching position
- the motor circuit pump 9 is active and the battery pump 22 is not active.
- the capacitor string 17 is blocked.
- the drive parallel connection, the first valve device 5, the electric heater 20, the chiller 21, the third connection 29, the cooler 6, the second valve device 8 and the motor circuit pump 9 are connected in series and form one closed circuit. Flow through the second cooler bypass 32, the bypass battery parallel connection and the circulation line 28 is blocked.
- This operating state therefore differs from the operating state from FIG. 14 only in that in the operating state from FIG. 15 the flow flows through the cooler 6 and the second cooler bypass 32 is not used. This operating state is therefore used when thermal energy is to be released to the environment via the cooler 6 because there is an excess of thermal energy in the temperature control circuit 1.
- the 16 shows an eleventh operating state based on the temperature control circuit 1.
- the first valve device 5 is in its third switching position
- the second valve device 8 is in its second switching position
- the motor circuit pump 9 is active and the battery pump 22 is active.
- the capacitor string 17 is blocked.
- the drive parallel connection, the first valve device 5, the electric heater 20, the chiller 21, the third connection 29, the cooler 6, the second valve device 8 and the motor circuit pump 9 are connected in series and form a closed circuit. This circuit is connected to the simultaneously formed battery circuit 33 at the junction of the circulation line 28 and at the third connection 29.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/839,821 US12444788B2 (en) | 2022-05-10 | 2023-05-08 | Thermal management system for a motor vehicle, and motor vehicle having such a thermal management system |
| KR1020247025815A KR20240132050A (ko) | 2022-05-10 | 2023-05-08 | 자동차용 열관리 시스템 및 이러한 시스템을 구비한 자동차 |
| JP2024563587A JP2025515611A (ja) | 2022-05-10 | 2023-05-08 | 自動車の熱管理システムおよびそのような熱管理システムを有する自動車 |
| CN202380020429.4A CN118647517A (zh) | 2022-05-10 | 2023-05-08 | 用于机动车的热管理系统和包括这样的热管理系统的机动车 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022111656.5 | 2022-05-10 | ||
| DE102022111656.5A DE102022111656B3 (de) | 2022-05-10 | 2022-05-10 | Thermomanagementsystem für ein Kraftfahrzeug und Kraftfahrzeug mit einem solchen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023217702A1 true WO2023217702A1 (de) | 2023-11-16 |
Family
ID=86603944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/062127 Ceased WO2023217702A1 (de) | 2022-05-10 | 2023-05-08 | Thermomanagementsystem für ein kraftfahrzeug und kraftfahrzeug mit einem solchen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12444788B2 (de) |
| JP (1) | JP2025515611A (de) |
| KR (1) | KR20240132050A (de) |
| CN (1) | CN118647517A (de) |
| DE (1) | DE102022111656B3 (de) |
| WO (1) | WO2023217702A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119611038A (zh) * | 2024-12-31 | 2025-03-14 | 长城汽车股份有限公司 | 车辆的热管理系统、控制方法及车辆 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023118019A1 (de) * | 2023-07-07 | 2025-01-09 | Bayerische Motoren Werke Aktiengesellschaft | Temperiereinrichtung für ein Kraftfahrzeug, insbesondere für einen Kraftwagen, sowie Kraftfahrzeug mit einer solchen Temperiereinrichtung |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102015218825A1 (de) * | 2015-09-30 | 2017-03-30 | Bayerische Motoren Werke Aktiengesellschaft | Steuerungssystem zur Klimatisierung eines Fahrzeugs |
| DE102019109796A1 (de) * | 2018-05-31 | 2019-12-05 | Hanon Systems | Wärmestrommanagementvorrichtung und Verfahren zum Betreiben einer Wärmestrommanagementvorrichtung |
| DE102021117787A1 (de) | 2021-07-09 | 2021-10-28 | Bayerische Motoren Werke Aktiengesellschaft | Kältekreislauf sowie Wärmemanagementsystem und Kraftfahrzeug mit einem solchen |
| DE102021127770A1 (de) | 2021-10-26 | 2023-04-27 | Bayerische Motoren Werke Aktiengesellschaft | Thermomanagementsystem für ein Kraftfahrzeug und Kraftfahrzeug mit einem solchen |
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| US6651761B1 (en) * | 2001-09-27 | 2003-11-25 | Ford Global Technologies, Llc | Temperature control system for fuel cell electric vehicle cooling circuit |
| US20040069546A1 (en) * | 2002-10-15 | 2004-04-15 | Zheng Lou | Hybrid electrical vehicle powertrain thermal control |
| US8215432B2 (en) * | 2008-05-09 | 2012-07-10 | GM Global Technology Operations LLC | Battery thermal system for vehicle |
| US8689617B2 (en) * | 2012-03-30 | 2014-04-08 | Ford Global Technologies, Llc | Engine cooling system control |
| JP6417315B2 (ja) * | 2015-12-17 | 2018-11-07 | 日立オートモティブシステムズ株式会社 | 車両用内燃機関の冷却装置 |
| DE102017204116B4 (de) * | 2017-03-13 | 2022-06-15 | Audi Ag | Kälteanlage eines Fahrzeugs mit einem als Kältekreislauf für einen Kältebetrieb und als Wärmepumpenkreislauf für einen Heizbetrieb betreibbaren Kältemittelkreislauf |
| SE541771C2 (en) * | 2017-05-10 | 2019-12-10 | Scania Cv Ab | A cooling arrangement for cooling of an electric machine and at least one further component of an electric power unit and a vehicle comprising such a cooling arrangement |
| JP6806016B2 (ja) * | 2017-09-25 | 2020-12-23 | トヨタ自動車株式会社 | エンジン冷却装置 |
| US11021037B2 (en) * | 2017-11-07 | 2021-06-01 | Hanon Systems | Thermal management system |
| GB2571263B (en) * | 2018-02-16 | 2020-05-27 | Jaguar Land Rover Ltd | Apparatus and method for low grade heat recovery in an electric vehicle |
| DE102019107193B4 (de) * | 2019-03-20 | 2024-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Steuerung für eine Wärmeverteilung sowie Verfahren zum Betrieb einer Wärmeverteilung |
| KR102803788B1 (ko) * | 2020-04-21 | 2025-05-07 | 현대자동차주식회사 | 차량용 공조 시스템 |
| US11574900B2 (en) * | 2020-06-24 | 2023-02-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Integrated circuit device and method |
| US11274595B1 (en) * | 2020-09-17 | 2022-03-15 | Ford Global Technologies, Llc | System and method for engine cooling system |
| DE102021123953A1 (de) | 2021-09-16 | 2023-03-16 | Bayerische Motoren Werke Aktiengesellschaft | Wärmemanagementsystem und Kraftfahrzeug mit einem solchen |
-
2022
- 2022-05-10 DE DE102022111656.5A patent/DE102022111656B3/de active Active
-
2023
- 2023-05-08 CN CN202380020429.4A patent/CN118647517A/zh active Pending
- 2023-05-08 JP JP2024563587A patent/JP2025515611A/ja active Pending
- 2023-05-08 KR KR1020247025815A patent/KR20240132050A/ko active Pending
- 2023-05-08 US US18/839,821 patent/US12444788B2/en active Active
- 2023-05-08 WO PCT/EP2023/062127 patent/WO2023217702A1/de not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015218825A1 (de) * | 2015-09-30 | 2017-03-30 | Bayerische Motoren Werke Aktiengesellschaft | Steuerungssystem zur Klimatisierung eines Fahrzeugs |
| DE102019109796A1 (de) * | 2018-05-31 | 2019-12-05 | Hanon Systems | Wärmestrommanagementvorrichtung und Verfahren zum Betreiben einer Wärmestrommanagementvorrichtung |
| DE102021117787A1 (de) | 2021-07-09 | 2021-10-28 | Bayerische Motoren Werke Aktiengesellschaft | Kältekreislauf sowie Wärmemanagementsystem und Kraftfahrzeug mit einem solchen |
| DE102021127770A1 (de) | 2021-10-26 | 2023-04-27 | Bayerische Motoren Werke Aktiengesellschaft | Thermomanagementsystem für ein Kraftfahrzeug und Kraftfahrzeug mit einem solchen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119611038A (zh) * | 2024-12-31 | 2025-03-14 | 长城汽车股份有限公司 | 车辆的热管理系统、控制方法及车辆 |
| CN119611038B (zh) * | 2024-12-31 | 2025-10-03 | 长城汽车股份有限公司 | 车辆的热管理系统、控制方法及车辆 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20250112297A1 (en) | 2025-04-03 |
| US12444788B2 (en) | 2025-10-14 |
| DE102022111656B3 (de) | 2023-10-12 |
| CN118647517A (zh) | 2024-09-13 |
| KR20240132050A (ko) | 2024-09-02 |
| JP2025515611A (ja) | 2025-05-20 |
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