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WO2013045089A1 - Conditionnement thermique d'un véhicule automobile comportant en particulier un entraînement électrique - Google Patents

Conditionnement thermique d'un véhicule automobile comportant en particulier un entraînement électrique Download PDF

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Publication number
WO2013045089A1
WO2013045089A1 PCT/EP2012/004046 EP2012004046W WO2013045089A1 WO 2013045089 A1 WO2013045089 A1 WO 2013045089A1 EP 2012004046 W EP2012004046 W EP 2012004046W WO 2013045089 A1 WO2013045089 A1 WO 2013045089A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
heat
heat exchanger
valve
transport medium
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.)
Ceased
Application number
PCT/EP2012/004046
Other languages
German (de)
English (en)
Inventor
Thomas Haltmeier
Christine Susanne Junior
Christof Böttcher
Nils VRIELINK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Volkswagen AG
Original Assignee
Audi AG
Volkswagen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi AG, Volkswagen AG filed Critical Audi AG
Publication of WO2013045089A1 publication Critical patent/WO2013045089A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00478—Air-conditioning devices using the Peltier effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00885—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 [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H2001/00928—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising a secondary circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H2001/00949—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising additional heating/cooling sources, e.g. second evaporator

Definitions

  • the invention relates to an air conditioning arrangement according to the preamble of claim 1, a method according to the preamble of claim 20 and a method according to and / or according to the motor vehicle.
  • Such motor vehicles may, for example, have an electric drive, wherein various electrical components of the electric drive are thermally conditioned, for example, cooled or heated. It is known to use a heat transport medium and this by corresponding associated with the electrical components heat exchanger for transmitting corresponding
  • Corresponding heat can be used for example for heating an interior of the motor vehicle. Moreover, it is known by means of
  • Air conditioning compressors heat and / or refrigeration for the thermal conditioning of
  • DE 10 2005 048 660 A1 discloses an apparatus and a method for regulating the temperature of the passenger compartment of a motor vehicle.
  • This device for thermally regulating the passenger compartment of the motor vehicle comprises a cooling circuit in which a cooling liquid circulates, a secondary circuit in which a heat-transferring liquid circulates, a heat exchanger through which the cooling liquid and the heat-transferring liquid flow, and means for thermal exchange which are traversed by the heat transfer fluid and an air flow intended to heat and cool the passenger compartment of the vehicle.
  • the means for thermal exchanges comprise at least a whole of two heat exchangers mounted in parallel and each equipped with a flap valve, the flap valves being mounted in anti-parallel to one or the other of the heat exchanger and the cooling mode to supply the passenger compartment.
  • Further air-conditioning arrangements are shown in US 2008 0028768 A1, US 2009 0020620 A1, DE 10 2007 044 466 A1, WO 99 10191 A1, DE 603 03 654 T2, DE 101 54 595 A1 and DE 195 42 125 A1.
  • the object of the invention is to enable an improved thermal conditioning of a motor vehicle having an electric drive.
  • a Peltier heat pump is provided, which also serves as a heat source and as a heat sink, so that there is a particularly simple construction of the air conditioning arrangement.
  • a heat flow can be actively transported by means of the heat pump.
  • the heat pump can be defined as a machine that, using engineering, receives thermal energy from a lower temperature reservoir and, together with the drive energy, transfers it as heat to a higher temperature system. Examples of further heat pumps in addition to a Peltier heat pump would be heat pumps, which after the cold steam process,
  • the invention is characterized in that a switched into the first circuit hot side and connected to the second circuit cold side heat pump by means of a third heat flow from the heat transfer medium or the other heat transport medium of the second cycle in the heat transport medium of the first cycle under a consumption of particular electrical energy can be actively transported and thus an on-demand temperature control of coupled to the first and second circuit thermal components of the vehicle is possible.
  • the invention makes it possible to thermally condition a charger as required and / or to condition electrical components as required and / or to provide a heat exchanger which is as simple as possible, in particular front-end heat exchangers and / or to minimize and / or restrict a flow resistance of corresponding circuits for thermal conditioning by means of a heat transport medium to make do with as few drive pumps for the heat transport medium and / or separate circuits to provide thermal conditioning of electrical components and an interior of the motor vehicle and / or even at relatively high outside temperatures cooling of the electrical components and / or the interior permit and / or in a simple manner a waste heat of a charger for
  • Electric machine, a DC-DC converter and a power electronics thermally condition as needed and / or provide a winter to the electrical components additional heat source for heating the interior and / or provide a simply constructed air conditioning arrangement that requires as little heat sources and / / or to provide a flexible as possible controllable and / or controllable air conditioning arrangement.
  • the heat exchanger is designed in particular as a front-end heat exchanger, so that it is exposed by its arrangement in the front end and thus in the front of a direct air flow.
  • the heat exchanger at a location other than the front end of a vehicle.
  • a preferred embodiment of the air conditioning arrangement is designed according to claim 2.
  • a heat flow for heating and / or heating by means of the indoor air flow can be introduced into the interior of the motor vehicle.
  • Claim 3 formed.
  • the first circuit can be switched so that the heat generated by the heat pump either the
  • Interior is supplied or discharged to the environment.
  • Advantageously can be switched so between a summer and a winter operation.
  • Claim 4 is formed.
  • a thermal conditioning of the electrical components can take place by means of the electrical component arrangement. This can be the
  • Electro-component arrangement per electrical component at least one separate
  • Electric component either heat are supplied or removed from it.
  • Claim 5 is formed. Advantageously, by means of the second circuit the
  • Electrode assembly can be thermally conditioned.
  • Another preferred embodiment of the air conditioning arrangement is according to
  • Claim 6 is formed.
  • the electrical component arrangement can be separated from the remaining second circuit by means of the valve. This makes it possible to react to operating conditions in which no thermal conditioning of the
  • a fluid-side resistance of the second circuit can be minimized as needed.
  • the charger is arranged in the parallel branch.
  • the charger can therefore be conditioned separately by means of the parallel branch, so that this only has to be thermally conditioned in the event that it actually has to be thermally conditioned,
  • Claim 8 is formed.
  • the parallel branch can be separated by means of the valve arrangement. This can advantageously take place in an operating state of the motor vehicle when it is not being charged, that is to say at a standstill and / or during a driving operation.
  • the charger does not have to be removed from the vehicle while driving
  • Heat transfer medium to be flowed through.
  • Claim 9 is formed.
  • a waste heat of the electrical component assembly is discharged through the front end heat exchanger in the environment of the motor vehicle or is held in the motor vehicle, for example, to thermally condition the interior or to heat.
  • a waste heat of the electrical component arrangement can be used as needed and optimally.
  • a corresponding heat flow, which originates from the electrical component arrangement are recorded. This can be advantageous in particular if very low temperatures prevail in the surroundings of the motor vehicle.
  • Claim 10 is formed. Advantageously, only the first in the front end heat exchanger Heat exchanger and a second heat exchanger required. Advantageously, results in a particularly simple front end heat exchanger.
  • the heat exchanger can be selectively controlled by means of the valve.
  • the front-end heat exchanger can thus be used for different tasks, so that it is advantageously used particularly well and no further heat exchanger of the front-end heat exchanger is required.
  • the third circuit can be controlled by the third pump separately from the first and / or second circuit.
  • Electrode arrangement can be controlled separately, in particular, a
  • the fifth heat flow between the second circuit and the third circuit can be exchanged by means of the water-water heat exchanger.
  • the heat pump provided cooling capacity can be used via the water-water heat exchanger for cooling the electrical components.
  • the second and the third circuit are completely separated from each other operable, controllable and / or regulated.
  • both the second circuit and the third circuit can be supplied with provided by the heat pump cooling capacity.
  • these are equally connected in a common line section, namely the cold side of the heat pump. In this line section are appropriate
  • volume flow of the second circuit and the third circuit can be jointly performed so that they mix there, so that there is also a corresponding transmission of heating and / or cooling capacity or a corresponding DC circuit occurs.
  • Another preferred embodiment of the air conditioning arrangement is designed according to claim 16.
  • the second circuit and the third circuit are connected in parallel, wherein advantageously results in a minimum fluid-side resistance of the second circuit and the third circuit.
  • Another preferred embodiment of the air conditioning arrangement is designed according to claim 17.
  • the second circuit and the third circuit can be operated with the common heat transport medium, so they are associated with each other on the fluid side. This results in an advantageous low fluid-side resistance in the operation of the second and third circuit.
  • the third circuit can optionally be switched so that it passes through the cold side of the Peltier pump or not.
  • it can thus be selected whether the switched in the third circuit electrical component assembly is to be cooled by the heat pump or not.
  • the maximum flow rate of the heat pump is optionally completely the second cycle, so the interior of the motor vehicle available.
  • a fluid-side resistance of the air-conditioning arrangement can thereby be optimized as needed.
  • the third heat flow is exchanged either only with the second circuit, so that the second circuit can deliver a maximum amount of heat or optionally together with the third circuit, so that advantageously a portion of the second and third circuit withdrawn amount of heat for cooling the
  • the object is also achieved in a method according to the preamble of claim 20 by the characterizing part of claim 20.
  • the method is carried out in particular by means of a previously described air conditioning arrangement. This results in the advantages described above.
  • the object is also achieved by a motor vehicle with a previously described
  • FIG. 1 shows a particularly preferred embodiment of an air conditioning system for thermally conditioning a motor vehicle having an electric drive
  • Figure 2 shows another air conditioning arrangement similar to that shown in Figure 1, wherein a
  • Water-water heat exchanger is provided
  • FIG. 3 shows a further air conditioning arrangement similar to that in FIGS. 1 and 2
  • FIG. 4 shows a further air-conditioning arrangement similar to that shown in FIGS. 1-3, with the difference being that a compact electrical component arrangement is provided;
  • FIG. 5 shows a detailed view of the compact electrical component arrangement shown in FIG. 4.
  • FIG. 6 shows a detailed view of an electrical component arrangement shown in FIG. 3 with an additional parallel branch, wherein the parallel branch has a charger and
  • FIG. 7 shows a further air-conditioning arrangement similar to that shown in FIG.
  • FIG. 1 shows a preferred exemplary embodiment of an air-conditioning arrangement 51 for thermally conditioning a motor vehicle 55 having an electric drive 53.
  • the electric drive 53 is shown only schematically in FIG. 1 and has an electric motor 45.
  • the motor vehicle 55 is also shown only partially in FIG.
  • the air conditioning arrangement 51 shown in FIG. 1 has a first circuit 10.
  • the first circuit 10 is operated with a heat transport medium 57, wherein a first Pump 15 ensures the drive or a circulation of the heat transfer medium 57.
  • the air-conditioning arrangement 51 has a second circuit 20.
  • the second circuit 20 is also operated by means of the heat transfer medium 57. Alternatively or additionally, this can also be operated with a further heat transport medium.
  • a heat transport medium may, in particular, be understood as meaning a liquid, for example oil, water and / or the like.
  • the second circuit 20 is driven by a second pump 25.
  • a front-end heat exchanger 59 is connected in the first circuit 10.
  • the front-end heat exchanger 59 is flowed through by an ambient air stream 63.
  • a fan may be provided, which is not shown in detail in FIG.
  • the ambient air stream 63 originates from an environment 69 surrounding the motor vehicle 55.
  • the front-end heat exchanger 59 has a first heat exchanger 93, which is also connected in the first circuit 10. Between the first heat exchanger 93 of the front-end heat exchanger 59 and the ambient air stream 63, a first heat flow 61 can be exchanged.
  • a cooling heat exchanger 65 is connected in the second circuit 20 in the second circuit 20, a cooling heat exchanger 65 is connected.
  • Cooling heat exchanger 65 is associated with an interior 71 of the motor vehicle 55.
  • the interior 71 the interior of the motor vehicle 55, is delimited from the environment 69.
  • Into the interior 71 opens an indoor air flow 73, which is guided through the cooling heat exchanger 65 and / or can be guided. Between the indoor air flow 73 and the
  • Cooling heat exchanger 65 a second heat flow 67 can be replaced. As a result, the interior 71 of the motor vehicle 55 can advantageously be cooled.
  • the first heat flow 61 and the second heat flow 67 are passive, ie driven in the direction of a temperature gradient.
  • the air conditioning arrangement 51 shown in FIG. 1 advantageously has a Peltier heat pump 79, although other heat pumps can also be used.
  • the Peltier heat pump 79 has a cold side 77 and a warm side 75.
  • a third heat flow 81 can be transported from the cold side 77 to the hot side 75 of the Peltier heat pump 79 while supplying electrical energy 83 against an energy gradient existing between the cold side 77 and the hot side 75.
  • the third heat flow 81 be transported or pumped from the colder second circuit 20 in the warmer first circuit 10.
  • a heating heat exchanger 85 is connected in the first circuit 10.
  • Heating heat exchanger 85, a fourth heat flow 87 with the indoor air flow 63 are exchanged.
  • Corresponding heat can be pumped from the hot side 75 of the Peltier heat pump 79 coming through the heating heat exchanger 85, so that advantageously thereby the interior 71 of the motor vehicle 55 can be heated.
  • the air conditioning arrangement 51 shown in FIG. 1 has an electrical component arrangement 40.
  • the electrical component assembly 40 includes a DC-DC converter 41, power electronics 43, the electric machine 45, a charger 47, and a high-voltage battery 49.
  • the high-voltage battery 49 which may also be referred to as a traction battery, serves to provide drive energy for driving the motor vehicle 55 by means of the
  • the DC-DC converter 41 is used to provide a vehicle electrical system voltage.
  • the power electronics 43 is used to control accordingly
  • the charger 47 serves to charge the high-voltage battery 49 to a not belonging to the motor vehicle 55 power grid.
  • the electrical component arrangement 40 is connected in a third circuit 30.
  • the third circuit 30 is also with the
  • Heat transport medium 57 operated and driven by a third pump 35.
  • the second circuit 20 and the third circuit 30 are connected in parallel and are operated with a common heat transport medium 57.
  • the second circuit 20 and the third circuit 30 are guided together in a common line section through the cold side 77 of the Peltier heat pump 79.
  • a third heat exchanger 97 of the front-end heat exchanger 59 is connected.
  • a second heat exchanger 95 of the front-end heat exchanger 59 is connected.
  • the front-end heat exchanger 59 may be a heat exchanger arranged on a front of the motor vehicle 55, the front-end heat exchanger 59
  • the first circuit 10 has the first pump 15 connected downstream of a first valve 1. This is designed as spring-reset, electromagnetically operated 3/2-way valve.
  • the heating heat exchanger 85 is connected downstream.
  • the heating heat exchanger 85, the hot side 75 of the Peltier heat pump 79 is connected downstream.
  • the hot side 75 of the Peltier heat pump 79 in turn is the first pump 15th
  • the first part 1 of the first partial heat exchanger 93 of the front-end heat exchanger 59 is connected downstream.
  • the first heat exchanger 93 of the front-end heat exchanger 59, the hot side 75 of the Peltier heat pump 79 is connected downstream.
  • the second pump 25 of the second circuit 20 is the common line piece and with this the cold side 77 of the Peltier heat pump 79 downstream.
  • a second valve 2 is connected in the second circuit 20 via a branch of the cold side 77 of the Peltier heat pump 79.
  • the second valve of the second circuit 20 is designed as a spring-reset, electromagnetically adjustable 3/2-way valve. In a first branch is the second valve 2 of the second circuit 20 of the
  • Cooling heat exchanger 65 downstream.
  • the cooling heat exchanger 65 of the second circuit 20, the second pump 25 of the second circuit 20 is connected downstream.
  • the second circuit 20 of the second valve 2 of the second circuit 20 of the second heat exchanger 95 of the front-end heat exchanger 59 is connected downstream.
  • the second pump 25 of the second circuit 20 is connected downstream.
  • one of the cold side 77 of the Peltier heat pump 79 forthcoming volume flow of the second circuit 20 selectively through the second heat exchanger 95 of the front-end heat exchanger 59 or through the
  • Cooling heat exchanger 65 are performed.
  • the third pump 35 of the third circuit 30 is an eighth valve 8 downstream.
  • the eighth valve 8 is designed as a spring-reset, electromagnetically adjustable 3/2-way valve.
  • the cold side 77 of the Peltier heat pump 79 is connected downstream.
  • the second circuit 20 and the third circuit 30 are connected in parallel or in the common
  • the electrical component assembly 40 is part of the third circuit 30 and has a
  • Valve assembly 91 on.
  • the valve arrangement 91 has a third valve 3, a fourth valve 4, a fifth valve 5 and a sixth valve 6.
  • the valves 3 - 6 are each as
  • the electrical component arrangement 40 has a parallel branch 89.
  • the charger 47 is connected.
  • the charger 47 can be switched into the third circuit 30 by means of the valve assembly 91 as needed or be switched out of this.
  • the third valve 3 is arranged in a further parallel branch of the electrical component arrangement 40 and is connected upstream of the DC-DC converter 41.
  • the power electronics 43 and the electric machine 45 are connected downstream of the DC-DC converter in the further parallel branch.
  • the high-voltage battery 49 is connected in a battery parallel branch of the electrical component arrangement 40. Parallel to the high-voltage battery 49, the sixth valve 6 is connected.
  • the further parallel branch which has the DC-DC converter 41, the power electronics 43 and the electric motor 45, by means of the third valve 3, if necessary, be switched into the third circuit 30 or switched out of this.
  • a triple-confluence parts of the electrical component assembly 40, the electrical component assembly 40 downstream of a seventh valve 7 in the third circuit 30 is provided.
  • the seventh valve 7 is designed as a spring-reset, electromagnetically adjustable 3/2 way valve.
  • the third pump 35 is connected directly downstream.
  • the third heat exchanger 97 of the front-end heat exchanger 59 is connected downstream.
  • the third heat exchanger 97 of the third circuit 30, the third pump 35 of the third circuit 30 is connected downstream.
  • the second circuit 20 and the third circuit 30 can be controlled and / or regulated separately.
  • the second pump 25 and the third pump 35 can be made comparatively small.
  • the second circuit 20 and the third circuit 30 are brought together.
  • the second circuit 20 and the third circuit 30 are again brought apart.
  • the first valve 1 is switched so that of the first circuit 10 the
  • Warm side 75 of the Peltier heat pump 79 and this downstream of the first heat exchanger 93 of the front-end heat exchanger 59 are flowed through.
  • the third circuit 30 is downstream of the third pump 35 via the eighth valve 8, this downstream via the cold side 77 of the Peltier heat pump 79, this downstream via the third valve 3, this downstream in the DC-DC converter 41, this downstream via the power electronics 43, this downstream via the electric motor 45 of the electric drive 53, this downstream via the seventh valve 7, this
  • This operating mode can be adjusted in a summer operation, ie at relatively high temperatures in the environment 69 of the motor vehicle 55.
  • Active cooling of the interior 71 and passive cooling via the electrical component arrangement 40 can also take place in a summer mode.
  • the first circuit 10 is switched in the same way as in the operating mode described above. Reference is made to this description.
  • the second circuit 20 is switched as in the above-described operation mode. Reference is made to this description.
  • the third circuit 30 is starting from the third pump 35 via the eighth valve 8, this
  • the third circuit 30 is not connected via the cold side 77 of the Peltier heat pump 79.
  • the second valve 2 of the second circuit 20 has a corresponding switching position.
  • Electric component assembly 40 done.
  • the fourth valve 4, the fifth valve 5 and the sixth valve 6 of the valve arrangement 91 of the electrical component arrangement 40 are closed in this second operating mode.
  • heating of the interior 71 of the motor vehicle 55 can take place with waste heat utilization of the electrical components of the electrical component arrangement 40.
  • a waste heat generated by means of the electrical components can be used to heat the interior 71.
  • such a current drain for heating the interior 71 from the high-voltage battery 49 is minimized.
  • the first circuit 10 is connected, starting from the first pump 15, via the first valve 1, the heating heat exchanger 85, the warm side 75 of the Peltier heat pump 79 and from this back to the first pump 15.
  • the second circuit 20 is connected in the third operating mode, starting from the second pump 25 via the cold side 77 of the Peltier heat pump 79, via the second valve 2 and finally via the second heat exchanger 95 of the second circuit 20 back to the second pump 25.
  • the third circuit 30 is downstream of the third pump 35 via the eighth valve 8, the cold side 77 of the Peltier heat pump 79 via the junction, via the third valve 3, the DC-DC converter 41, the power electronics 43, the electric motor 45, the triple confluence point and finally switched back to the third pump 35 via the seventh valve 7.
  • the waste heat from the electrical component arrangement 40 can be introduced into the cold side 77 of the Peltier heat pump 79, the Peltier heat pump 79 introducing it at a higher temperature level than the first Circuit 10 for heating the interior 71 can provide.
  • the waste heat can be tapped at a comparatively low temperature level of the cold side 77 and used accordingly.
  • a reheat operation can be understood as meaning that the interior airflow 73 that flows into the interior 71 first of all flows by means of the
  • Cooling heat exchanger 65 is cooled to then by means of
  • Heating heat exchanger 85 to be reheated. It falls below the
  • Interior air flow 73 first at the cooling heat exchanger 65 a dew point, so that condensation water precipitates and thus the beneficial dehumidification of the interior 71 can take place.
  • the first circuit 10 is switched in the same way as in the third operating mode. In this respect, reference is made to the description of the first circuit 10 in the third operating mode.
  • the second circuit 20 and the second valve 2 is in the fourth
  • the third circuit 30 is turned off. In this case, the third pump 35 without delivery.
  • the third heat flow 81 generated by means of the Peltier heat pump 79 can be completely removed from the cooling heat exchanger 65 and then made available again to the heating heat exchanger 85, so that the dehumidification described above can take place.
  • a fifth operating mode can simultaneously dehumidify the interior 71 in the so-called reheat operation and a cooling and / or waste heat utilization of
  • the first circuit 10 and the second circuit 20 are connected in the same way as in the fourth operating mode. In this respect, reference is made to the description of the fourth mode of operation.
  • the third pump 35 of the third circuit 30 is turned on. In this case, the third circuit 30 is connected in the same way as in the winter operation of the third operating mode. Reference is made in this regard to the description of the third mode of operation.
  • a sixth operating mode of the air-conditioning arrangement 51 shown in FIG. 1 a purely passive cooling of the electrical components of the electrical component arrangement 40 can advantageously take place. In this case, the first circuit 10 and the second circuit 20 are switched off, that is, the first pump 15 and the second pump 25 without delivery.
  • the third circuit 30 is bypassed, bypassing the cold side 77 of the Peltier heat pump 79 is switched to the same as in the second operating mode. In this respect, reference is made to the description of the second operating mode with respect to the third circuit 30.
  • a pre-conditioning of the high-voltage battery 49 during a mains charging operation can take place using a heat loss of the charging device 47 in a winter operation.
  • the first circuit 10 and the second circuit 20 are switched off, that is, the first pump 15 and the second pump 25 without delivery.
  • the third circuit 30 is starting from the third pump 35 via the eighth valve 8, the charger 47 of the electrical component assembly 40, the fifth valve 5, the high-voltage battery 49, the triple junction point and finally on the seventh valve 7 back connected to the third pump 35.
  • Electric component assembly 40 opened.
  • the remaining valves, ie the third valve 3, the fourth valve 4 and the sixth valve 6 are closed in this seventh operating mode. It can be seen that, advantageously, first the charging device 47 is flowed through by the heat transport medium 57. This absorbed waste heat can be beneficial to the thermal
  • Conditioning the high-voltage battery 49 can be used in the winter operation of the seventh mode of operation. This can be useful in a winter operation, ie at relatively low temperatures in the environment 69 of the motor vehicle 55 advantageous.
  • a passive cooling of the high-voltage battery 49 and the charger 47 can take place during a mains charging operation.
  • a corresponding heat release can advantageously take place via the third heat exchanger 97 of the front-end heat exchanger 59 to the surroundings 69 of the motor vehicle 55.
  • the first circuit 10 and the second circuit 20 are also turned off.
  • the third circuit 30 is starting from the third pump 35 via the eighth valve 8 via the charger 47 and this downstream of the sixth valve 6 and the charger 47 and the sixth valve 6 connected in parallel via the fourth valve 4 and the high-voltage battery 49, via the triple junction parts, via the seventh valve 7 and finally via the third heat exchanger 97 of the front-end heat exchanger 59 again switched back to the third pump 35.
  • the heat transport medium 57 is guided in parallel via the parallel branch 89 and the further parallel branch through the charger 47 and the high-voltage battery 49.
  • a heat flow can be dissipated both from the charger 47 and from the high-voltage battery 49 and dissipated by the third heat exchanger 97 of the front-end heat exchanger 59 via the ambient air stream 63 to the environment 69 of the motor vehicle 55.
  • the third valve 3 and the fifth valve 5 are closed.
  • the remaining valves of the valve assembly 91, so the fourth valve 4 and the sixth valve 6 are open.
  • a ninth operating mode which can also be advantageously used in a summer operation
  • active cooling of the high-voltage battery 49 and the charger 47 can take place.
  • the Peltier heat pump 79 is energized by means of electrical energy 83, so it can pump a heat flow into the first circuit 10.
  • the first circuit 10 is switched as in the first and second operating modes. In this respect, reference is made to the description of the first and second operating modes.
  • the third circuit 30 is identical except for a switching position of the eighth valve 8 as in the eighth operating mode. In this respect, the description of the eighth
  • the third circuit 30 is guided over the cold side 77 of the Peltier heat pump 79, so that the active cooling can take place. Specifically, the third circuit 30 is starting from the third pump 35 via the eighth valve 8, the
  • the air conditioning assembly 51 shown in Figure 1 has a total of eight valves, namely the first valve 1, the second valve 2, the third valve 3, the fourth valve 4, the fifth valve 5, the sixth valve 6, the seventh valve 7 and the eighth valve 8. This results in a total of 256 theoretical switching states.
  • the description of the operating modes 1 - 9 described above is therefore exemplary. Made up of a total of 8 valves, each two
  • Air conditioning assembly 51 to a variety of requirements by means of corresponding switching positions of the valves 1 - 8 are adjusted. This can be done actively or passively, that is to say with an energization of the Peltier heat pump 79 with the electrical energy 83 or not.
  • the Peltier heat pump 79 is provided as the only source of heat and cold.
  • the air-conditioning arrangement 51 comes without further heat sources, such as an electric PTC heater or the like.
  • the air conditioning arrangement 51 shown in FIG. 1 is therefore designed to be heaterless.
  • Air conditioning compressor so it is designed climate compressor.
  • FIG. 2 shows a further air conditioning arrangement 51 similar to the air conditioning arrangement 51 shown in FIG. In the following, only the differences are discussed. In contrast, the air conditioning arrangement shown in Figure 2 51 only seven valves, namely the first to seventh valve 1 - 7. Instead of the eighth valve 8, the
  • a water-water heat exchanger 99 by means of which a heat flow between the third circuit 30 and the second circuit 20 is interchangeable. More specifically, from the electrical component assembly 40 to the
  • Heat transfer medium 57 of the third circuit 30 transmitted heat in the form of a fifth heat flow 101 by means of the water-water heat exchanger 99 on the
  • Heat transfer medium 57 of the second circuit 20 are transmitted.
  • the first circuit 10, the second circuit 20 and the third circuit 30 can also be controlled separately.
  • the second circuit 20 and the third circuit 30 are completely separated from one another on the fluid side, so that they can also be operated by means of different heat transport media 57.
  • the second circuit 20 and the third circuit 30 are therefore not fluidly and thermally associated with each other in difference, but only thermally associated with each other by means of the water-water heat exchanger 99 through which the fifth heat flow 101 is feasible.
  • the fifth heat flow 101 is also passively driven by means of a heat gradient between the third circuit 30 and the second circuit 20.
  • the third circuit 30, which has the electrical component arrangement 40 can be coupled to the Peltier heat pump 79 for waste heat utilization and / or for active cooling of the E components. This interconnection has the advantage that a mass flow of
  • Heat transport medium 57 via the electrical components or the
  • Electro-component arrangement 40 can be set independently, which is advantageous in terms of reliability. Furthermore, there is a comparatively short
  • the second pump 25 and the third pump 35 can be dimensioned comparatively small.
  • the air conditioning assembly 51 shown in Figure 2 has the total of seven valves, each of which can assume two switching positions. Consequently, a total of 128 operating modes result, of which four are described in more detail below by way of example.
  • a first mode of operation which may be used for cooling the interior 71 and the electrical components of the electrical component assembly 40 in a summer operation
  • the first circuit 10 extends from the first pump 15 via the first valve 1, the first heat exchanger 93 of the front end
  • the second circuit 20 extends from the second pump 25 through the second valve 2, the cooling heat exchanger 65, the water-water heat exchanger 99 and finally on the cold side 77 of the Peltier heat pump 79 back to the second pump 25 back.
  • the third circuit 30 extends from the third pump 35 via the third.
  • Valve 3 the DC-DC converter 41, the power electronics 43, the electric machine 45, the seventh valve 7, the third heat exchanger 97 of the front-end heat exchanger 59 and finally via the water-water heat exchanger 99 back to the third pump 35th
  • the Peltier heat pump 79 provided cold can be used on the one hand via the water-water heat exchanger 99 for cooling the electrical components and the cooling heat exchanger 65 for cooling the interior 71.
  • the air conditioning assembly 51 may be used in a winter operation to heat the interior 71 with waste heat utilization of the electrocomponent assembly 40.
  • the first circuit 10 runs starting from the first pump 15 via the first valve 1, the heater core 85 and finally via the hot side 75 of the Peltier heat pump 79 back to the first pump 15th
  • the cooling heat exchanger 65 and the heating heat exchanger 85 are part of the interior 71 of the motor vehicle 55 associated air conditioner. To drive the
  • the air conditioner may have a separate blower.
  • the air conditioner may have a recirculation damper, by means of the optional
  • Indoor airflow 73 can be sucked from the interior 71 or from the environment 69. In any case, the indoor air flow 73 for air conditioning of the interior opens into the interior 71st
  • the second circuit 20 runs in the second operating mode, starting from the second pump 25 via the second valve 2, the second heat exchanger 95 of the front-end heat exchanger 59, the cooling heat exchanger 65 of the air conditioner, the water-water heat exchanger 99 and finally on the Cold side 77 of the Peltier heat pump 79 back to the second pump 25th
  • the third circuit 30 extends from the third pump 35 via the third valve 3 of the valve assembly 91 of the electrical component assembly 40, the DC-DC converter 41, the power electronics 43, the electric machine 45, the seventh valve 7 and finally via the water -Water heat exchanger 99 back to the third pump 35th
  • a third operating mode of the air-conditioning arrangement 51 shown in FIG. 2 can be used for dehumidifying the interior 71 in the reheat mode and for cooling or using waste heat of the electrical components by means of the electro-component arrangement 40.
  • the first circuit 10 is connected as in the second
  • the second circuit 20 is in the third 'operating mode switched as in the first operation mode. In this respect, reference is made to the description of the first operating mode.
  • the third circuit 30 is switched in the third operating mode as in the second
  • a pre-conditioning of the high-voltage battery 49 during a mains charging operation can take place using a heat loss of the charger 47.
  • the fourth operating mode can be used for winter operation, ie for low temperatures in the surroundings 69 of the motor vehicle 55.
  • the first circuit 10 and the second circuit 20 are switched off, that is, the first pump 15 and the second pump 25 without delivery.
  • the third circuit 30 is switched as in the seventh operating mode of the air-conditioning arrangement 51 shown in FIG. 1.
  • the description of the seventh operating mode is shown in FIG.
  • FIG. 3 shows a further exemplary embodiment of an air-conditioning arrangement 51 of a motor vehicle 55 with an electric drive 53. The system shown in FIG.
  • Air conditioning assembly 51 is similar to that shown in FIGS. 1 and 2
  • Air conditioning arrangement 51 constructed. In the following, only the differences are discussed.
  • the air-conditioning arrangement 51 according to FIG. 3 has only a first circuit 10 and a second circuit 20, which are driven by a first pump 15 and a second pump 25.
  • the third circuit 30 and the third pump 35 can be dispensed with. Nevertheless, the
  • the tenth valve 100 is connected to the second circuit 20 downstream of the cooling heat exchanger 65.
  • a first switching position which is shown in Figure 3
  • the tenth valve 100 the cold side 77 of the Peltier heat pump 79 is connected downstream.
  • the tenth valve 10 is the electro-component arrangement 40
  • the air conditioning arrangement 51 according to FIG. 3 advantageously has a simplified front-end heat exchanger 59.
  • the front end heat exchanger 59 according to FIG. 3 has only the first heat exchanger 93 and the second heat exchanger 95.
  • the third heat exchanger 97 can be dispensed with.
  • the air-conditioning arrangement 51 according to FIG. 3 has a ninth valve 9.
  • the ninth valve 9 is connected downstream of the second heat exchanger 95 of the front-end heat exchanger 59 and is part of the second circuit 20. In a first switching position of the ninth valve 9, which is shown in Figure 3, the ninth valve 9, the cooling heat exchanger 65 is connected downstream.
  • the ninth valve 9 In a second switching position, the ninth valve 9, the hot side 75 of the Peltier heat pump 79 is connected downstream.
  • the Peltier heat pump 79 is twice the heat transfer medium 57, so flowed through by the first circuit 10 and the second circuit 20 and can also be referred to as Peltier water-water heat exchanger.
  • the first valve 1, the second valve 2, the ninth valve 9 and the tenth valve 100 are each designed as a spring-reset, electromagnetically actuated 3/2-way valve.
  • Heat exchanger 97 is dispensable.
  • Heat to be exchanged can optionally be exchanged with different components of the second circuit 20, in particular with the Peltier heat pump 79, the cooling heat exchanger 65 and / or the electrical component arrangement 40.
  • the air conditioning assembly 51 shown in Figure 3 has a total of nine valves, namely the first to seventh valve 1-7 and the ninth valve 9 and the tenth valve 100. These have two switching positions, so that a total of 512 different
  • Switching states result. These 512 switching states are part of the invention, with 7 particularly preferred operating states being explained in more detail below.
  • the first circuit 10 is switched as in the first
  • the second circuit 20 is returned from the second pump 25 via the second valve 2, the cooling heat exchanger 65, the tenth valve 100 and finally via the cold side 77 of the Peltier heat pump 79 second pump 25 out.
  • Operating state can be used advantageously for cooling the interior 71 of the motor vehicle 55.
  • the second heat flow 67 can be withdrawn from the interior airflow 73, which in turn can be pumped from the cold side 77 to the warm side 75 as a third heat flow 81 by means of the Peltier heat pump 79.
  • this can then be delivered in the form of the first heat flow 61 to the ambient air stream 63 and thus to the environment 69 of the motor vehicle 55.
  • the second circuit 20 proceeds in the second operating state, starting from the second pump 25 via the second valve 2, via the cooling heat exchanger 65, via the tenth valve 100, in all three parallel branches via the electrical component arrangement 40, via the seventh valve 7 the second heat exchanger 95 of the front-end heat exchanger 59, via the ninth valve 9 and finally on the cold side 77 of the Peltier heat pump 79 again back to the second pump 25.
  • Advantageously, can be done in a series circuit, the cooling of the interior 71 and the electrical components.
  • the still comparatively cool flowing out of the cooling heat exchanger 65 heat transport medium 57 can be advantageously used for cooling the electrical components by means of the electric component assembly 40. After this twofold increase in temperature, heat can be dissipated to the ambient air stream 63.
  • the thus pre-cooled heat transfer medium can then be advantageously brought back on the cold side 77 of the Peltier heat pump 79 back to a necessary for cooling the interior 71 low temperature level.
  • the air-conditioning arrangement 51 shown in FIG. 3 can be used for dehumidifying the interior 71.
  • the second circuit 20 is connected in the same way as in the first operating state. In this respect, reference is made to the description of the first operating state.
  • the first circuit 10 is thus switched as in the first operating mode of the air-conditioning arrangement 51 shown in FIG. 1.
  • the air-conditioning arrangement 51 shown in FIG. 3 with respect to the switching state of the first circuit 10 is described in the description of the first operating state of FIG Air conditioning 51 assignment referenced.
  • a fourth operating state can equally be used for the dehumidification of the interior 71 with simultaneous cooling or waste heat utilization of the electrical components by means of the electrical component arrangement 40.
  • the first circuit 10 is connected in the same way as in the third operating state. In this respect, the description of the first circuit 10 in the third operating state of that shown in FIG.
  • Air conditioning arrangement 51 referenced.
  • the second circuit 20 extends in the fourth operating state, starting from the second pump 25 via the cooling heat exchanger 65, via the tenth valve 100, via the
  • the interior 71 can be heated, in particular by means of ambient heat.
  • the first circuit 10 is connected as in the third and fourth operating state.
  • the second circuit 20 extends from the second pump 25 via the second valve 2, the second heat exchanger 95 of the front-end heat exchanger 59, the ninth valve 9, the cooling heat exchanger 65, the tenth valve 100 and finally via the cold side 77 of the Peltier heat pump 79 back to the second pump 25.
  • the air-conditioning arrangement 51 illustrated in FIG. 3 can be used for heating the interior 71 with ambient heat and waste heat utilization of the electrical components.
  • the first circuit 10 is switched in the same way as in the third operating state. Insofar is on the
  • the second circuit 20 extends in the sixth operating state, starting from the second pump 25 via the second valve 2, the second heat exchanger 95 of the front-end heat exchanger 59, the cooling heat exchanger 65, the tenth valve 100, the
  • Advantageously, can be added to heat the Peltier heat pump 79 by means of the second heat exchanger 95 and by means of the cooling heat exchanger 65 ambient heat , This can advantageously be pumped to heat the interior by means of the heating heat exchanger 85 by means of the Peltier heat pump 79 in the first circuit 10.
  • the air conditioning assembly 51 shown in FIG. 3 may be used to actively condition the electrical components during a power-up phase. Alternatively, if necessary, heating of the electrical components is also possible. Alternatively, if necessary, a preconditioning of the interior 71 is conceivable.
  • the first circuit 10 starting from the first pump 15, is guided back to the first pump 15 via the first valve 1, the first heat exchanger 93 of the front-end heat exchanger 59 and finally via the hot side 75 of the Peltier heat pump 79.
  • the switching position of the first valve 1 can optionally be changed.
  • the second circuit 20 is switched to be the same in the seventh operating state as in the fourth operating state. In this respect, reference is made to the description of the fourth operating state. If appropriate, the seventh valve 7 can be switched over differently depending on an ambient temperature level, so that the second heat exchanger 95 of the front-end heat exchanger 59 is connected in the second circuit 20.
  • the air conditioning assembly 51 shown in FIG. 3 as well as the air conditioning assembly 51 shown in FIGS. 1 and 2 may be used to separately condition the charger 47 and the high voltage battery 49.
  • the charger 47 can be switched out of the second circuit 20 during a driving state of the motor vehicle 55 by means of the parallel branch 89, so that pressure losses can be advantageously eliminated by the charger 47 during driving, since the charger 47 is operated only during the mains charging operation and accordingly only during this time must be thermally conditioned.
  • the ninth valve 9 is advantageous
  • the front-end heat exchanger 59 can thus be constructed particularly simply, namely only by means of the first heat exchanger 93 and second heat exchanger 95.
  • the second circuit 20 has only the second heat exchanger 95, since in all operating conditions, if necessary, by means of a corresponding switching position of the ninth Valve 9, the second heat exchanger 95 can be used to exchange heat with the environment 69.
  • FIG. 4 shows a further exemplary embodiment of an air conditioning arrangement 51 similar to the air conditioning arrangement 51 shown in FIGS.
  • the front-end heat exchanger 59 has the first heat exchanger 93, the second heat exchanger 95 and the third heat exchanger 97.
  • this eliminates the ninth valve 9 shown in FIG. In the following, only the further differences will be discussed.
  • the air-conditioning arrangement 51 shown in FIG. 4 has a total of seven valves, namely the first valve 1, the second valve 2, the fourth valve 4, the fifth valve 5, the sixth valve 6, the seventh valve 7 and the tenth valve 100 the ninth valve 9 can, as shown in Figure 4 advantageously also on the third valve 3 of the
  • Electro-component arrangement 40 can be omitted. This advantageously has a
  • the drawn parallel branch 89 is connected, but in series with the power electronics 43, the DC-DC converter 41 and the electric machine 45.
  • the seven valves resulting in a total of 128 switching states, which are part of the invention.
  • the first valve 1 of the first circuit 10 is not connected downstream of the first pump 15.
  • the first valve 1 is connected downstream of the third heat exchanger 97 of the front-end heat exchanger 59.
  • the first valve 1 fulfills the same function at this point, so that the first circuit 10 according to the illustration of Figure 4 also optionally via the front-end heat exchanger 59 or the
  • Heating heat exchanger 85 can be performed.
  • the air-conditioning arrangement 51 likewise has the two circuits, namely the first circuit 10 and the second circuit 20, which are each coupled to the Peltier heat pump 79.
  • the second circuit 20 acts in a summer operation as a cooling circuit for the
  • the second circuit 20 thus always represents the colder of the two circuits.
  • a temperature level is generated at the heat exchangers of the front-end heat exchanger 59 and the air conditioner with the help of the Peltier heat pump 79, with the depending on the operating heat from the Environment 69 and from the electrical components
  • the switched into the second circuit 20 components are arranged according to the expected temperature level.
  • winter operation case 59 as much heat from the environment 69 is added to the front-end heat exchanger.
  • An exit temperature of the heat transport medium 57 at an outlet of the Peltier heat pump 79 or at an inlet of the front-end heat exchanger 59 is advantageous to below a temperature level of the environment 69th
  • the cooling heat exchanger 65 is flowed through.
  • the cooling heat exchanger 65 condenses due to the low temperature level, the humidity from a mixture of circulating air and fresh air.
  • a latent advantageous Heat output also co-used by condensing out the humidity.
  • the front-end heat exchanger 59 can be decoupled with the aid of the second valve 2 of the second circuit 20.
  • a lower temperature level is produced at the cooling heat exchanger 65 than at the upstream front end heat exchanger 59 and it can be dehumidified more.
  • the electrical components can in one
  • the third heat exchanger 97 is decoupled in the flow direction with the aid of the seventh valve 7, which is designed as a changeover valve.
  • the interior 71 is thermally conditioned.
  • the electrical components are flowed through and cooled.
  • the heat absorbed is first emitted as good as possible to the front end heat exchanger 59 connected downstream of the E components.
  • the seventh valve 7 can be switched.
  • the low temperature level for conditioning the interior 71 is generated via the Peltier heat pump 79.
  • Fan speeds and / or flap positions for example grille shutters
  • a regulating and / or control device not shown in detail in FIGS. 1-4 may be used to control the valves 1-10, the pumps 15, 25, 35 and the electrical energy 83 and the fan of the front-end heat exchanger 59 and the air conditioner be provided.
  • FIG. 5 shows a detailed view of the electrical component arrangement 40 shown in FIG. 4.
  • the electrical component arrangement 40 according to the representation of FIG. 5 has a total of four 2/2-way valves or switching valves, namely a fourth valve 4, a fifth Valve 5, a sixth valve 6 and a seventh valve 7. This results in a total of 16 switching states that are part of the invention. In the following, five of the switching states according to the invention are described in greater detail by way of example.
  • the fourth valve 4 is closed, the fifth valve 5 is opened, the sixth valve 6 is closed and the seventh valve 7, which is embodied as a 3/2-way valve, is switched in the direction of the cold side 77 of the Peltier heat pump 79.
  • This first variant can be advantageously used for a charging operation at low temperatures, wherein advantageously a thermal conditioning of the high-voltage battery 49 can be carried out under a waste heat utilization of the charger 47.
  • the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the third heat exchanger 97 of the front-end heat exchanger 59.
  • This second variant can be advantageously used for a charging operation at high temperatures and / or for cooling the charger 47 and the high-voltage battery 49.
  • the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.
  • This third variant can be advantageously used for a start-up operation in a winter and / or for a heat pump operation with a thermal conditioning of the high-voltage battery 49 after a charging operation.
  • the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the third heat exchanger 97 of the front-end heat exchanger 59.
  • This fourth variant can be advantageously used for a continuous operation in a summer and / or for a cooling operation of the electric machine 56, the DC-DC converter 41 and the power electronics 43.
  • the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.
  • This switching state can be advantageous for a continuous operation in a winter and / or a heat pump operation with waste heat utilization of
  • FIG. 6 shows a detailed view of the electrical component arrangement 40 shown in FIG. 3.
  • the electrical component arrangement 40 shown in FIG. 6 has a total of five valves, namely four switching valves or 2/2-way valves and a 3/2-way switching valve.
  • the valves are each designed as spring-return electromagnetically operated switching valve.
  • the electrical component arrangement 40 shown in FIG. 6 has the third valve 3, the fourth valve 4, the fifth valve 5, the sixth valve 6 and the seventh valve 7. Accordingly, a total of 32 different switching states, which are part of the invention. Of the 32 possible switching states according to the invention, seven variants are described in greater detail below by way of example.
  • the third valve 3 is opened, the fourth valve 4 is opened, the fifth valve 5 is opened, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.
  • all three parallel branches of the electrical component arrangement 40 are advantageous with the
  • Heat transfer medium 57 flows through, with all the electrical components of the
  • Electric component assembly 40 can be thermally conditioned alike.
  • the third valve 3 is closed, the fourth valve 4 is closed, the fifth valve 5 is opened, the sixth valve 6 is closed and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.
  • this second variant can be used for a charging operation at low temperatures and / or a thermal conditioning of the high-voltage battery 49 with waste heat utilization of the charger 47. It can be seen that in this case the heat transport medium 57 first flows through the charger 47, where it is heated, so that the subsequently passed through high-voltage battery 49 can be warmed up accordingly.
  • the third valve 3 is closed, the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the second heat exchanger 95 of the front-end heat exchanger 59.
  • This third variant can be advantageously used for a charging operation at high temperatures, with advantageous cooling of the charger 47 and the high-voltage battery 49 can be carried out. It can be seen that in this case the charger 47 and the high-voltage battery 49 can be flowed through in parallel, so that they can be cooled equally.
  • the power electronics 43, the DC-DC converter 41 and the electric machine 45 does not flow through, so that the entire volume flow of the heat transfer medium 57 can be used to cool the charger 47 and the high-voltage battery 49.
  • the third valve 3 is closed, the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is closed
  • This fourth variant can be used advantageously for a start-up operation in a winter and / or a heat pump operation with a thermally conditioned battery after a charging operation.
  • only the high-voltage battery 49 is advantageously flowed through.
  • the other parallel branches, in which the charger 47 or the power electronics 43, the DC-DC converter 41 and the electric machine 45 are connected, are not flowed through by the heat transport medium 57.
  • the third valve 3 is opened, the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is closed
  • This fifth variant can advantageously be used for a continuous operation in a winter and / or a heat pump operation with a waste heat utilization of the power electronics 43 and / or the DC-DC converter 41 and / or the electric machine 45.
  • both the charger 47 and the high-voltage battery 49 are not flowed through, so that they advantageously cause no resistance and no unused flow through the heat transfer medium 57. Due to the opened third valve 3 and the remaining closed valves 4, 5, 6, only the parallel branch of the power electronics 43, the DC-DC converter 41 and the electric machine 45 is flowed through.
  • the third valve 3 is opened, the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.
  • this sixth variant for a continuous operation in a winter and / or a heat pump operation with waste heat utilization of the power electronics 43, the
  • DC-DC converter 41, the electric machine 45 and the high-voltage battery 49 are used.
  • the parallel branch 89, in which the charger 47 is connected does not flow through.
  • the remaining electrical components can advantageously be flowed through by the heat transport medium 57 for utilizing the waste heat.
  • all valves except the seventh valve 7 are the same as in the fifth variant. The only difference is the seventh valve 7 is connected in the direction of the second heat exchanger 95 of the front-end heat exchanger 59.
  • This seventh variant can be used advantageously for a continuous driving operation in a summer and / or a cooling operation of the electric machine 45, the DC-DC converter 41 and the power electronics 43. It can be seen that the charger 47 and the high-voltage battery 49 from the second circuit 20 and the electrical component assembly 40th
  • the valves 1 to 10 can also be designed as 2/2 or 3/2-way proportional valves.
  • Motor vehicle 55 take place, in particular the heat flows 61, 67, 81, 87 and / or 101.
  • Fig. 7 shows a further embodiment, similar to that shown in Fig.1, wherein the number of branches and valves is reduced, so that the air conditioning assembly 251 can be made simpler.
  • Functionally identical or identical components are provided in the embodiment shown in FIG. 7 with respect to the components shown in Figure 1 with increased by 200 reference numerals.
  • the illustrated air conditioning arrangement 251 in turn has a first circuit 210 which is operated with a heat transport medium 257, wherein a first pump 215 provides for its circulation. Following in the flow direction of the first pump 215, the hot side 275 of a Peltier heat pump 279 is provided in the circuit 210 and following this branching possibility via two 2/2 way valves 300a, 300b. A further transport of the heat transport medium 257 through a front end heat exchanger 259, in the present case the first partial heat exchanger 293, is possible via the first branch and thus an open valve 300a, and starting from this back to the first pump 215.
  • the front end heat exchanger is as shown in FIG Embodiment, can be flowed through by an ambient air flow 263 between the first part of the heat exchanger 293 and the ambient air stream 263, a first heat flow 261 can be replaced.
  • the second branching possibility at the valve 300b leads the heat transport medium 257 via a heating heat exchanger 285, via which a fourth heat flow 287 with the
  • the air conditioning assembly 251 has analogous to that explained in Fig. 1
  • a second circuit 220 which is operated by means of the heat transport medium 257 and a second pump 225.
  • a further heat transport medium can be provided.
  • the heat transport medium 257 to the cold side 277 of the Peltier heat pump 279 feasible.
  • a branching option in three lines which can be opened or closed via a respective 2/2-way valve 302a, 302b, 302c.
  • a first branch which can be flowed through via the valve 302 a, leads to a cooling heat exchanger 265, which is assigned to an interior 271 of the motor vehicle 255.
  • the leading into the interior 271 indoor airflow 273 is by heat transfer of a second
  • Cooling heat exchanger 265, the heat transport medium 257 to the suction side of the second pump 225 is traceable.
  • a second branch of the circuit 220 is in the direction of via the valve 302b
  • Electro-component arrangement 240 can be conducted. This branch leads into a line section which, in addition, runs into a third circuit 230, which is operated via a third pump 235.
  • a DC-DC converter unit 241, 241 a which as in this case in two parts, for example, to provide the voltage of two independent Bordnetze or one piece (not shown) is arranged.
  • the heat transport medium 257 can be guided either via a second partial heat exchanger 295 of the front-end heat exchanger 259 or a bypass 303 bypassing it.
  • the heat transport medium 257 is led to the suction region of the second pump 225 of the second circuit 220 or to the suction region of the third pump 235 of the third circuit 230.
  • the second partial heat exchanger 295 of the front-end heat exchanger 259 or a bypass 303 bypassing it.
  • the heat transport medium 257 is led to the suction region of the second pump 225 of the second circuit 220 or to the suction region of the third pump 235 of the third circuit 230.
  • the second partial heat exchanger 295 of the front-end heat exchanger 259 or a bypass 303 bypassing it.
  • the heat transport medium 257 is led to the suction region of the second pump 225 of the second circuit 220 or to the suction region of the third pump 235 of the third circuit 230.
  • a third branch of the circuit 220 is opened or closed via the 2/2 valve 302c, the valve 302c being supplied with the high-voltage battery 249 and a charger 247 as part of the electrical component arrangement with the heat transport medium 257.
  • the heat transport medium 257 is returned via the parallel branch 289 to the second pump 225.
  • the operating modes of the arrangement according to FIG. 7 are described analogously to FIG. 1, wherein in a first operating mode for actively cooling the interior 271 of the motor vehicle 255 and part of the electrical component arrangement 240, the valve 300a is opened and the valve 300b is closed, then that the heating heat exchanger 285 is not flowed through by the heat transport medium 257. Rather, the heat transport medium 257 via the hot side 275 of the Peltier heat pump 279 to the front end heat exchanger 259 via the open valve 300a in the first circuit 210 and cooled there by means of the partial heat exchanger 293 through the first heat flow 261 through the ambient air flow 263.
  • the amount of heat generated at the Peltier heat pump 279 on the hot side 275 is thus substantially discharged via the partial heat exchanger 293 to the environment 269. After passing through the first partial heat exchanger 293, the heat transport medium 257 can be conveyed again via the first pump 215.
  • the heat transport medium 257 is cooled on the cold side 277 of the Peltier heat pump 279 and subsequently fed via the open valve 302 b the cooling heat exchanger 265, wherein the over
  • Heat flow 267 cooled indoor air flow 273 the interior 271 can be supplied. Also active, the DC-DC converter 241 241 a, the power electronics 243 and the electric motor 245 can be cooled via the open valve 302 b.
  • the valve 207 is adjusted so that the heat transport medium 257 flows through the bypass 303, bypassing the second partial heat exchanger 295 back to the second pump 225.
  • the valve 208 is then in a switching position, which prevents the way to the third pump 235.
  • the valve 303c is in the closed position, so that the charger 247 and the high-voltage battery 249 are not supplied with the heat transport medium 257.
  • Such an operating mode represents a typical summer operation.
  • Electrode assembly 240 only passively cool.
  • the cooling of the interior as described for the first mode, taking advantage of the cold side 277 of the Peltier heat pump 279.
  • the power electronics 243 and the electric motor 245 provides only the third cycle 230.
  • the heat transport medium 257 is guided via said electrical components and under appropriate switching position of the valve 207 via the second partial heat exchanger 295 of the front-end heat exchanger 259 and by means of
  • a heating of the interior 271 with additional utilization of the waste heat of the Elektrokomponenten- arrangement 240 is connected so that the first pump 215, the heat transport medium 257 on the hot side 275th the Peltier heat pump 279 and the open valve 300b leads to the heater core 285. This is done via the fourth heat flow 287, a heating of the indoor air flow 273.
  • the valve 300a is closed.
  • the waste heat which may be produced at the DC-DC converters 241, 241 a, the power electronics 243 and the electric motor 245 is fed via the heat transport medium 257 to the cold side 277 of the Peltier heat pump 279.
  • valves 302a and 302c are closed and the valve 302b is opened. Furthermore, the valve 207 is switched so that the heat transfer medium 257 bypasses the second partial heat exchanger 295 via the bypass 303 and the switching position of the valve 208 is selected such that the supply line to the second pump 225 is opened and the supply to the third pump 235, which is switched off anyway is, is prevented.
  • both the heating heat exchanger 285 and the cooling heat exchanger 265 can be actively included in the circuits of the Peltier heat pump 279.
  • the first pump 215 via the hot side 275 of the heat pump 279 conveys the heat transport medium 257 via the opened valve 300b to the heater core 285, at which via the fourth
  • Heat flow 287 a heating of the inner air flow 273, which is supplied to the interior takes place.
  • the valve 300a is regulated in its position so that a desired temperature at the heat exchanger 285 can be adjusted by the proportion of the heat transfer medium 257 guided to the front-end heat exchanger 259.
  • the second pump 225 conveys the heat transport medium 257 via the cold side 277 of the Peltier heat exchanger 269 and the opened valve 302 a to
  • the third cycle 230 is shut down or the third pump 235 is turned off and the corresponding
  • a fifth operating mode in addition to the reheat operation, cooling and / or waste heat utilization of the electrical component arrangement 240 takes place.
  • the first circuit 210 is connected as in the fourth operating mode.
  • the second circuit 220 is modified in that, in contrast to the fourth mode of operation, the valve 302b is opened in addition to the valve 302a, so that the DC-DC converter 241, 241a, the power electronics 243 and the electric motor 245 are supplied with the heat transport medium 257 become.
  • the switching position of the valve 207 is selected so that the bypass 303 flows through bypassing the second partial heat exchanger 295 and is returned to the second pump 225.
  • a purely passive cooling of the electrical component arrangement 240 takes place exclusively with the exclusive use of the third circuit 230.
  • the heat transport medium 257 is supplied via the third pump 235 to the DC-DC converters 241, 241 a of the power electronics 243 and the electric motor 245 and the valve 207 is switched so that the bypass 303 is closed and the heat transport medium 257 is cooled at the second partial heat exchanger 295 with heat exchange with the ambient air stream 263.
  • the 2/3-way valve 208 is switched so that the third circuit 230 is completely decoupled from the second circuit 220 and a return of the heat transfer medium 257 to the third pump 235 takes place.
  • the first and second circuits 210, 220 are completely shut down, that is, in particular, the first and second pump 215, 225 are turned off. Likewise, the Peltier heat pump 279 is disabled.
  • active cooling of the charging device 247 and the high-voltage battery 249 in a seventh operating mode is advantageously carried out, in particular during summer operation.
  • the first circuit 210 is as in the first mode of operation
  • Embodiment shown in FIG. 7 connected.
  • the third circuit 230 and thus also the third pump 235 are shut down.
  • the valves 302a and 302b are closed.
  • the embodiment shown in Figure 7 has a total of seven valves, of which two are 3/2-way valves and five 2/2-way valves. This number can still be reduced by the valve 300b, in particular in the case of a so-called air-conditioned air conditioning arrangement 251.
  • the heater core would 285 can not be separated from the heat transport medium 257, so that during operation of the Peltier heat pump 279 this is constantly heated, however, by suitable arrangement of the heating heat exchanger 285 in the indoor air flow 273 via one, the proportion of the heat exchanger 285 passing indoor air flow 273, regulating temperature flap to set the temperature of the indoor airflow 273 entering the internal space 271.
  • the exemplary embodiment according to FIG. 7 or the modified exemplary embodiment not shown has a reduced number of valves and branching points compared with the exemplary embodiment according to FIG. 7
  • front-end heat exchanger 259 is constructed in two parts only.
  • the parallel branch 289 with the valve 302c in the second circuit 220 can be omitted.
  • the charger 247 may then be connected to the third circuit 230 in series with other components such as DC-DC converters 241, 241 a, power electronics 243 or electric motor 245.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un système de climatisation (51) destiné au conditionnement thermique d'un véhicule automobile (55) comprenant en particulier un entraînement électrique (53), doté : d'un premier circuit (10) fonctionnant avec un milieu caloporteur (57) et entraîné par une première pompe (15); d'un deuxième circuit (20) fonctionnant avec le milieu caloporteur (57) ou un autre milieu caloporteur et entraîné par une deuxième pompe (25); d'un échangeur de chaleur monté dans le premier circuit (10), en particulier un échangeur de chaleur d'extrémité avant (59), permettant de transporter passivement un premier flux de chaleur (61) entre un flux d'air environnant (63) provenant d'un environnement (69) du véhicule automobile (55) et le milieu caloporteur (57) du premier circuit (10); d'un échangeur de chaleur de refroidissement (65) monté dans le deuxième circuit (20) et permettant de transporter passivement un deuxième flux de chaleur (67) entre un flux d'air d'espace intérieur (73), débouchant dans un espace intérieur (71) du véhicule automobile (55) délimitant au moins en partie l'environnement (69) du véhicule automobile (55), et le milieu caloporteur (57) ou l'autre milieu caloporteur du deuxième circuit (20). L'invention vise à fournir un système de climatisation amélioré. A cet effet, celui-ci comprend une pompe à chaleur (79) présentant une face chaude (75) montée dans le premier circuit (10) et une face froide (77) montée dans le deuxième circuit (20), ladite pompe permettant de transporter activement un troisième flux de chaleur (81) du milieu caloporteur (57) ou de l'autre milieu caloporteur du deuxième circuit (20) dans le milieu caloporteur (57) du premier circuit (10) avec consommation d'une énergie (83), en particulier d'une énergie électrique. De préférence, la pompe à chaleur est une pompe à chaleur à effet de Peltier.
PCT/EP2012/004046 2011-09-30 2012-09-27 Conditionnement thermique d'un véhicule automobile comportant en particulier un entraînement électrique Ceased WO2013045089A1 (fr)

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WO2015091969A1 (fr) * 2013-12-20 2015-06-25 Gentherm Gmbh Gestion thermique pour un véhicule électrique ou hybride ainsi que procédé pour le conditionnement de l'habitacle d'un tel véhicule automobile
CN109421471A (zh) * 2017-08-28 2019-03-05 罗伯特·博世有限公司 用于机动车的制热/制冷系统
CN112290112A (zh) * 2019-07-22 2021-01-29 Fca意大利股份公司 用于电驱动车辆的被提供有帕耳帖单元的热调节系统
US10906377B2 (en) 2018-01-19 2021-02-02 Ford Global Technologies, Llc System and method for heating passenger cabin with inverter waste heat boosted by a heater
CN113165474A (zh) * 2019-01-28 2021-07-23 宝马股份公司 具有用于对车辆的内部空间进行调温的调温装置的车辆、尤其是机动车
CN114667387A (zh) * 2019-10-14 2022-06-24 萨乐锐伊塔洛工业有限公司 车辆的流体控制装置

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DE102014211447A1 (de) 2014-06-16 2015-12-17 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Steuerungseinrichtung zum Steuern der durch ein Elektrofahrzeug erzeugten Verlustwärme
DE102014217959A1 (de) 2014-09-09 2016-03-10 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Klimatisierungseinrichtung zum Klimatisieren eines Innenraums eines elektrisch angetriebenen Fahrzeugs
CN106042826A (zh) * 2016-06-01 2016-10-26 肇庆高新区凯盈顺汽车设计有限公司 车载空调
DE102017222684B4 (de) 2017-12-14 2025-03-27 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Steuern einer Verlustwärme bei einer elektrischen Antriebsmaschine eines Kraftfahrzeugs, elektrische Antriebseinheit für ein Kraftfahrzeug sowie Kraftfahrzeug
DE102018219859B4 (de) 2018-11-20 2020-09-03 Audi Ag Kälteanlage für ein Fahrzeug sowie Fahrzeug mit einer Kälteanlage
FR3117411A1 (fr) * 2020-12-15 2022-06-17 Valeo Systemes Thermiques Système de traitement thermique d’un véhicule

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WO2015091969A1 (fr) * 2013-12-20 2015-06-25 Gentherm Gmbh Gestion thermique pour un véhicule électrique ou hybride ainsi que procédé pour le conditionnement de l'habitacle d'un tel véhicule automobile
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US10906377B2 (en) 2018-01-19 2021-02-02 Ford Global Technologies, Llc System and method for heating passenger cabin with inverter waste heat boosted by a heater
CN113165474A (zh) * 2019-01-28 2021-07-23 宝马股份公司 具有用于对车辆的内部空间进行调温的调温装置的车辆、尤其是机动车
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CN112290112A (zh) * 2019-07-22 2021-01-29 Fca意大利股份公司 用于电驱动车辆的被提供有帕耳帖单元的热调节系统
CN112290112B (zh) * 2019-07-22 2024-04-02 Fca意大利股份公司 用于电驱动车辆的被提供有帕耳帖单元的热调节系统
CN114667387A (zh) * 2019-10-14 2022-06-24 萨乐锐伊塔洛工业有限公司 车辆的流体控制装置

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