DE102011051624A1 - Cooling system for use in motor vehicle, has heating circuit comprised of electrical heater, pump, and valves, so that one branch pipe is bypassed by another branch pipe for heat exchange with internal combustion engine - Google Patents

Cooling system for use in motor vehicle, has heating circuit comprised of electrical heater, pump, and valves, so that one branch pipe is bypassed by another branch pipe for heat exchange with internal combustion engine Download PDF

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DE102011051624A1
DE102011051624A1 DE201110051624 DE102011051624A DE102011051624A1 DE 102011051624 A1 DE102011051624 A1 DE 102011051624A1 DE 201110051624 DE201110051624 DE 201110051624 DE 102011051624 A DE102011051624 A DE 102011051624A DE 102011051624 A1 DE102011051624 A1 DE 102011051624A1
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branch line
branch pipe
cooling system
combustion engine
internal combustion
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DE201110051624
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German (de)
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Bastian Freese
Udo Höfer
Thomas Tscheppe
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next 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
    • B60H1/00271—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
    • B60H1/00642—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
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • H01M10/65—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [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
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The cooling system (1) has refrigerant and cooling circuits (2,4) coupled by an evaporator (22). An air conditioner (18) is coupled with heating circuit (6) by heat transfer medium. Heating circuit is comprised of an electrical heater (12), a pump (46), two-way valve (48) and three-way valve (54), so that a branch pipe (52) is bypassed by a branch pipe (50) for heat exchange with an internal combustion engine (8). Valves are arranged behind engine. A branch line (56) is used for heat exchange with a high-voltage source via a heat exchanger (59) and a branch line (58).

Description

Die Erfindung betrifft ein Kühlsystem zum Einsatz in einem Kraftfahrzeug mit Verbrennungsmotor und integriertem Elektroantrieb zur Kühlung einer Hochspannungsquelle, insbesondere einer Hochvoltbatterie, beziehungsweise zur Temperierung des Fahrzeuginnenraumes, mit einem Kältekreislauf und einem Kühlkreislauf, wobei der Kältekreislauf einen Kältemittelverdichter, mindestens einen Kondensator, mindestens ein Regelventil, mindestens ein Expansionsventil und einen ersten Verdampfer und eine erste und zweite Zweigleitung aufweist, wobei der Kühlkreislauf eine Pumpe, die Hochspannungsquelle, ein Drei-Zwei-Wege-Ventil, einen Kühler und eine dritte und vierte Zweigleitung aufweist, wobei der Kältekreislauf und der Kühlkreislauf über einen zweiten Verdampfer miteinander gekoppelt sind. Dabei stellt ein Klimagerät die Schnittstelle zum Fahrzeuginnenraum dar. The invention relates to a cooling system for use in a motor vehicle with internal combustion engine and integrated electric drive for cooling a high voltage source, in particular a high-voltage battery, or for temperature control of the vehicle interior, with a refrigeration cycle and a cooling circuit, wherein the refrigeration cycle a refrigerant compressor, at least one capacitor, at least one control valve , at least one expansion valve and a first evaporator and a first and second branch line, wherein the cooling circuit comprises a pump, the high voltage source, a three-two-way valve, a radiator and a third and fourth branch line, wherein the refrigeration circuit and the cooling circuit are coupled together via a second evaporator. An air conditioner is the interface to the vehicle interior.

Ein derartiges Kühlsystem ist beispielsweise aus der EP 1 264 715 B1 (siehe hierzu insbesondere 7) bekannt. Dadurch, dass die Hochspannungsquelle direkt in den Kühlkreislauf eingebunden ist, können deutlich höhere Wärmemengen abgeführt werden und ist die Kühlung der Hochspannungsquelle unabhängiger durchzuführen von der Temperatur im Fahrgastinnenraum des Kraftfahrzeuges, die im Wesentlichen durch den Kältekreislauf bestimmt wird. Such a cooling system is for example from the EP 1 264 715 B1 (see in particular 7 ) known. The fact that the high voltage source is integrated directly into the cooling circuit, significantly higher amounts of heat can be dissipated and is the cooling of the high voltage source to perform independent of the temperature in the passenger compartment of the motor vehicle, which is essentially determined by the refrigeration cycle.

Ein derartiges Kühlsystem wird auch in der Publikation der Firma BEHR ( Thermomanagement bei Hybridfahrzeugen, Technischer Presstag 2009 ) offenbart. Insbesondere Abbildung 8 dieser Publikation zeigt einen Kältekreislauf und einen mit diesem Kältekreislauf über einen sogenannten Chiller verbundenen Kühlkreislauf zur Kühlung der Hochspannungsquelle. Um bei sehr niedrigen Außentemperaturen die Hochspannungsquelle schnell auf Betriebstemperatur zu bringen, ist hier vorgesehen, dass das Kühlmittel durch eine elektrische Heizung erwärmt wird, um die Hochspannungsquelle aufzuheizen. Zum Betrieb der elektrischen Heizung sind große Mengen elektrischer Energie notwendig, was zu einer schnellen Entladung der Hochspannungsquelle führt. Such a cooling system is also described in the publication of the company BEHR ( Thermal management of hybrid vehicles, Technical Pres. 2009 ) disclosed. In particular, Figure 8 of this publication shows a refrigeration cycle and associated with this refrigeration cycle via a so-called chiller cooling circuit for cooling the high voltage source. In order to quickly bring the high-voltage source to operating temperature at very low outside temperatures, it is provided here that the coolant is heated by an electric heater in order to heat the high-voltage source. To operate the electric heater large amounts of electrical energy are necessary, resulting in a fast discharge of the high voltage source.

Aufgabe der Erfindung ist es daher, ein Kühlsystem für Kraftfahrzeuge dahingehend zu verbessern, dass die oben genannten Nachteile vermieden werden. The object of the invention is therefore to improve a cooling system for motor vehicles to the effect that the above-mentioned disadvantages are avoided.

Die Aufgabe wird dadurch gelöst, dass das Klimagerät des Kühlsystems mit einem Heizkreislauf mit einem Wärmeübertragungsmittel gekoppelt ist, und es eine elektrische Zuheizvorrichtung, eine Pumpe, ein Drei-Zwei-Wege-Ventil und ein Drei-Drei-Wege-Ventil aufweist, derart, dass das Drei-Zwei-Wege-Ventil hinter der Zuheizvorrichtung angeordnet ist und eine fünfte Zweigleitung zum Wärmeaustausch mit dem Verbrennungsmotor und eine sechste Zweigleitung, die diesen bypassiert, schaltet, und dass Drei-Drei-Wege-Ventil hinter dem Verbrennungsmotor angeordnet ist und eine siebte Zweigleitung zum Wärmeaustausch mit der Hochspannungsquelle und eine achte Zweigleitung, die diese bypassiert, schaltet. Der Wärmeaustausch mit der Hochspannungsquelle erfolgt über einen zusätzlichen Wärmetauscher, um die Hochspannungsquelle wahlweise auf einem niedrigeren Temperaturniveau zu heizen. Auf diese Weise wird ein einfach aufgebautes Kühlsystem geschaffen, das zum Einen den Innenraum kühlen und sogar bei abgeschaltetem Verbrennungsmotor beheizen kann, wobei auch die Hochspannungsquelle auf einfache, effektive Art und Weise bei kalten Außentemperaturen in der Kaltstartphase auf Betriebstemperatur geheizt werden kann. Vorteil im Vergleich zu bestehenden Systemen ist das energieeffiziente Heizen der der Hochspannungsquelle durch Abwärme des Verbrennungsmotors, wodurch der Energieinhalt der Hochspannungsquelle geschont wird. The object is achieved in that the air conditioning unit of the cooling system is coupled to a heating circuit with a heat transfer medium, and it has an electric Zuheizvorrichtung, a pump, a three-two-way valve and a three-three-way valve, in such, that the three-two-way valve is disposed behind the Zuheizvorrichtung and a fifth branch line for heat exchange with the internal combustion engine and a sixth branch that bypasses bypasses, and that three-way valve is disposed behind the internal combustion engine and a seventh branch line for heat exchange with the high voltage source and an eighth branch line that bypasses them switches. The heat exchange with the high voltage source via an additional heat exchanger to heat the high voltage source either at a lower temperature level. In this way, a simple design cooling system is created, on the one hand cool the interior and can heat even with the internal combustion engine off, and the high voltage source can be heated to operating temperature in a simple, effective manner in cold outdoor temperatures in the cold start phase. The advantage compared to existing systems is the energy-efficient heating of the high-voltage source by waste heat of the internal combustion engine, which conserves the energy content of the high-voltage source.

Dabei ist es insbesondere vorteilhaft, wenn der zweite Verdampfer als Chiller ausgeführt ist. In einer weiteren vorteilhaften Ausführungsform ist der Kühler als Niedertemperatur-Kühler ausgeführt. Darüber hinaus kann in einer weiteren vorteilhaften Ausführungsform der Kältekreislauf einen inneren Wärmetauscher aufweisen. It is particularly advantageous if the second evaporator is designed as a chiller. In a further advantageous embodiment, the cooler is designed as a low-temperature cooler. In addition, in a further advantageous embodiment of the refrigeration cycle having an inner heat exchanger.

Nachfolgend wird die Erfindung anhand der Zeichnung näher erläutert. The invention will be explained in more detail with reference to the drawing.

Die einzige Figur zeigt ein Blockschaltbild des erfindungsgemäßen Kühlsystems zum Einsatz in einem Kraftfahrzeug. The single FIGURE shows a block diagram of the cooling system according to the invention for use in a motor vehicle.

Das Blockschaltbild zeigt ein Kühlsystem zum Einsatz in einem Kraftfahrzeug, das als Hybridfahrzeug ausgeführt ist. Das erfindungsgemäße Kühlsystem 1 besteht im Wesentlichen aus einem Kältekreislauf 2 und einem Kühlkreislauf 4. Um den Innenraum auch bei abgeschaltetem Verbrennungsmotor 8 und kalten Außentemperaturen erwärmen zu können und um eine Hochspannungsquelle 10 auf einfache Weise bei kalten Außentemperaturen in der Kaltstartphase auf Betriebstemperatur zu bringen, ist zusätzlich ein Heizkreislauf 6 vorgesehen, der unter anderem eine elektrische Zuheizvorrichtung 12 besitzt und über einen Wärmetauscher 59 mit dem Kühlkreislauf 4 zum Heizen der Hochspannungsquelle verbunden ist. The block diagram shows a cooling system for use in a motor vehicle, which is designed as a hybrid vehicle. The cooling system according to the invention 1 consists essentially of a refrigeration cycle 2 and a cooling circuit 4 , To the interior even when the internal combustion engine 8th and cold outside temperatures and to heat a high voltage source 10 In addition, a heating circuit can be easily brought up to operating temperature in cold outside temperatures in the cold start phase 6 provided, inter alia, an electric Zuheizvorrichtung 12 owns and has a heat exchanger 59 with the cooling circuit 4 for heating the high voltage source is connected.

Der Kältekreislauf 2 ist ein an sich bekannter Kältekreislauf mit einem elektrischen Kältemittelverdichter 14, mindestens einem Kondensator 16, einem Klimagerät 18 das in einer ersten Zweigleitung 20 angeordnet ist, sowie einem zweiten Verdampfer 22, der im vorliegenden Fall als ein an sich bekannter Chiller ausgeführt ist und in einer zweiten Zweigleitung 24 angeordnet ist. Die erste und zweite Zweigleitung 20, 24 weisen an sich bekannte Regelventile 26 und Expansionsventile 28 auf. The refrigeration cycle 2 is a known refrigeration cycle with an electric refrigerant compressor 14 , at least one capacitor 16 , an air conditioner 18 that in a first branch line 20 is arranged, and a second evaporator 22 which in the present case is designed as a per se known chiller and in a second branch line 24 is arranged. The first and second branch line 20 . 24 have per se known control valves 26 and expansion valves 28 on.

Um den Wirkungsgrad des Kältekreislaufes 2 noch zusätzlich zu erhöhen, ist des Weiteren ein innerer Wärmetauscher 30 vorgesehen, der die Temperaturdifferenz zwischen einer Druckleitung 32 und einer Saugleitung 34 nutzt. To the efficiency of the refrigeration cycle 2 in addition to increase, is also an internal heat exchanger 30 provided that the temperature difference between a pressure line 32 and a suction line 34 uses.

Über den als Chiller ausgeführten zweiten Verdampfer 22 ist der Kühlkreislauf 4 zur Kühlung der Hochspannungsquelle 10 angekoppelt. Derartige Chiller sind spezielle Wärmeübertrager, die sehr kompakt und mit hoher Leistungsdichte Wärme übertragen können. Auf diese Art und Weise ist es möglich, die Kühlung der Hochspannungsquelle 10 bei normalen und hohen Außentemperaturen als sekundären Kühlkreislauf 4 zum Kältekreislauf 2 durchführen zu lassen. Diese Zweigleitung 36 ist auch durch eine durchgezogene Linie dargestellt. Neben den bereits genannten Elementen weist der Kühlkreislauf 4 noch eine Pumpe 38 und ein Drei-Drei-Wege-Ventil 40 auf. Im Falle von besonders niedrigen Außentemperaturen kann das Drei-Drei-Wege-Ventil 40 eine zehnte Zweigleitung 42 schalten, die das Kühlmittel 4 durch einen Niedertemperatur-Kühler 44 zum Verdichter 38 leitet. About the second evaporator designed as a chiller 22 is the cooling circuit 4 for cooling the high voltage source 10 coupled. Such chillers are special heat exchangers that can transmit heat very compactly and with high power density. In this way it is possible to cool the high voltage source 10 at normal and high outside temperatures as a secondary cooling circuit 4 to the refrigeration cycle 2 to have carried out. This branch line 36 is also represented by a solid line. In addition to the elements already mentioned, the cooling circuit 4 another pump 38 and a three-way valve 40 on. In case of particularly low outside temperatures, the three-way valve can 40 a tenth branch line 42 turn on the coolant 4 through a low-temperature cooler 44 to the compressor 38 passes.

Um bei kalten Außentemperaturen den Innenraum heizen zu können, ist das Klimagerät 18 mit dem Heizkreislauf 6 verbunden. Dabei ist der Heizkreislauf 6 auf bekannte Weise durch den Verbrennungsmotor 8 geführt, wobei eine Pumpe 46 zum Transport des Wärmeübertragungsmittels im Heizkreislauf 6 vorgesehen ist. Hinter dem elektrischen Zuheizer 12 ist ein weiteres Drei-Zwei-Wege-Ventil 48 vorgesehen, das eine fünfte Zweigleitung 50 zum Wärmeaustausch mit dem Verbrennungsmotor 8 und eine sechste Zweigleitung 52, die diesen bypassiert, schaltet. Im vorliegenden Fall ist die sechste Zweigleitung 52 in durchgezogener Linie dargestellt. Des Weiteren weist der Heizkreislauf 6 ein Drei-Drei-Wege-Ventil 54 auf, das eine siebte Zweigleitung 56 zum Wärmeaustausch über einen Wärmetauscher 59 mit der Hochspannungsquelle 10 und eine achte Zweigleitung 58, die diese bypassiert, schaltet. Auf diese Art und Weise ist es möglich, die Hochspannungsquelle 10, insbesondere eine Hochvoltbatterie, bei kalten Außentemperaturen durch Abwärme des Verbrennungsmotors schnell auf Betriebstemperatur zu bringen. In order to heat the interior in cold outside temperatures, is the air conditioner 18 with the heating circuit 6 connected. Here is the heating circuit 6 in a known way by the internal combustion engine 8th led, with a pump 46 for transporting the heat transfer medium in the heating circuit 6 is provided. Behind the electric heater 12 is another three-way valve 48 provided that a fifth branch line 50 for heat exchange with the internal combustion engine 8th and a sixth branch line 52 that bypasses this, switches. In the present case, the sixth branch line 52 shown in a solid line. Furthermore, the heating circuit 6 a three-way valve 54 on, that's a seventh branch 56 for heat exchange via a heat exchanger 59 with the high voltage source 10 and an eighth branch 58 that bypasses these switches. In this way it is possible to use the high voltage source 10 , In particular, a high-voltage battery to bring in cold outside temperatures by waste heat of the engine quickly to operating temperature.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • EP 1264715 B1 [0002] EP 1264715 B1 [0002]

Zitierte Nicht-PatentliteraturCited non-patent literature

  • Thermomanagement bei Hybridfahrzeugen, Technischer Presstag 2009 [0003] Thermal management of hybrid vehicles, Technical Presidency 2009 [0003]

Claims (4)

Kühlsystem (1) zum Einsatz in einem Kraftfahrzeug, mit Verbrennungsmotor (8) und integriertem Elektroantrieb zur Kühlung einer Hochspannungsquelle (10), insbesondere einer Hochvoltbatterie, beziehungsweise zur Temperierung des Fahrzeuginnenraums, mit einem Kältekreislauf (2) und einem Kühlkreislauf (4), wobei der Kältekreislauf (2) einen Kältemittelverdichter (14), mindestens einen Kondensator (16), mindestens ein Regelventil (26), mindestens ein Expansionsventil (28), ein Klimagerät (18) und eine erste und zweite Zweigleitung (20, 24) aufweist, wobei der Kühlkreislauf (4) eine Pumpe (38), die Hochspannungsquelle (10), ein Drei-Zwei-Wege-Ventil (40), einen Kühler (44) und eine dritte und vierte Zweigleitung (36, 42) aufweist, wobei der Kältekreislauf (2) und der Kühlkreislauf (4) über einen zweiten Verdampfer (22) miteinander gekoppelt sind, dadurch gekennzeichnet, dass das Klimagerät (18) mit einem Heizkreislauf (6) mit einem Wärmeübertragungsmittel gekoppelt ist, der eine elektrische Zuheizvorrichtung (12), eine zweite Pumpe (46), ein Drei-Zwei-Wege-Ventil (48) und ein Drei-Drei-Wege-Ventil (54) aufweist, derart, dass das Drei-Zwei-Wege-Ventil (48) hinter der Zuheizvorrichtung (12) angeordnet ist und eine fünfte Zweigleitung (50) zum Wärmeaustausch mit dem Verbrennungsmotor (8) und eine sechste Zweigleitung (52), die diesen bypassiert, schaltet und dass ein Drei-Drei-Wege-Ventil (54) hinter dem Verbrennungsmotor angeordnet ist und eine siebte Zweigleitung (56) zum Wärmeaustausch mit der Hochspannungsquelle über einen Wärmetauscher (59) und eine achte Zweigleitung (58), die diese bypassiert, schaltet. Cooling system ( 1 ) for use in a motor vehicle, with internal combustion engine ( 8th ) and integrated electric drive for cooling a high voltage source ( 10 ), in particular a high-voltage battery, or for controlling the temperature of the vehicle interior, with a refrigeration cycle ( 2 ) and a cooling circuit ( 4 ), whereby the refrigeration cycle ( 2 ) a refrigerant compressor ( 14 ), at least one capacitor ( 16 ), at least one control valve ( 26 ), at least one expansion valve ( 28 ), an air conditioner ( 18 ) and a first and second branch line ( 20 . 24 ), wherein the cooling circuit ( 4 ) a pump ( 38 ), the high voltage source ( 10 ), a three-way valve ( 40 ), a cooler ( 44 ) and a third and fourth branch line ( 36 . 42 ), wherein the refrigeration cycle ( 2 ) and the cooling circuit ( 4 ) via a second evaporator ( 22 ) are coupled together, characterized in that the air conditioner ( 18 ) with a heating circuit ( 6 ) is coupled to a heat transfer medium comprising an electric auxiliary heating device ( 12 ), a second pump ( 46 ), a three-way valve ( 48 ) and a three-way valve ( 54 ), such that the three-way valve ( 48 ) behind the auxiliary heater ( 12 ) and a fifth branch line ( 50 ) for heat exchange with the internal combustion engine ( 8th ) and a sixth branch line ( 52 ), which bypasses this bypasses, and that a three-way valve ( 54 ) is arranged behind the internal combustion engine and a seventh branch line ( 56 ) for heat exchange with the high voltage source via a heat exchanger ( 59 ) and an eighth branch line ( 58 ), which bypasses them, switches. Kühlsystem nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Verdampfer (22) als Chiller ausgeführt ist. Cooling system according to claim 1, characterized in that the second evaporator ( 22 ) is executed as a chiller. Kühlsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Kühler (44) als Niedertemperatur-Kühler ausgeführt ist. Cooling system according to claim 1 or 2, characterized in that the radiator ( 44 ) is designed as a low-temperature radiator. Kühlsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kältekreislauf (2) einen inneren Wärmeaustauscher (3) aufweist. Cooling system according to one of the preceding claims, characterized in that the refrigeration cycle ( 2 ) an internal heat exchanger ( 3 ) having.
DE201110051624 2011-07-07 2011-07-07 Cooling system for use in motor vehicle, has heating circuit comprised of electrical heater, pump, and valves, so that one branch pipe is bypassed by another branch pipe for heat exchange with internal combustion engine Ceased DE102011051624A1 (en)

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DE102013206630B4 (en) 2013-04-15 2023-08-24 Bayerische Motoren Werke Aktiengesellschaft Cooling and heating system for a hybrid vehicle and method for operating such a cooling and heating system
DE102013206630A1 (en) * 2013-04-15 2014-10-16 Bayerische Motoren Werke Aktiengesellschaft Cooling and heating system for an electric or hybrid vehicle and method for operating such a cooling and heating system
EP2965935A3 (en) * 2014-06-17 2016-04-06 FERRARI S.p.A. Electric power system of a vehicle with electric propulsion
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DE102015001184A1 (en) * 2015-01-31 2016-08-04 Audi Ag Method for operating a drive device for a motor vehicle and corresponding drive device
CN105840290A (en) * 2015-01-31 2016-08-10 奥迪股份公司 Method of operating a drive device for a motor vehicle, and corresponding drive device
DE102015001184B4 (en) 2015-01-31 2023-11-23 Audi Ag Method for operating a drive device for a motor vehicle and corresponding drive device
DE102016104175A1 (en) 2016-03-08 2017-09-14 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Traction battery for an electrically powered vehicle and vehicle with such a traction battery
CN106004338A (en) * 2016-07-27 2016-10-12 宁波吉利汽车研究开发有限公司 Car heat management system and car
CN106004338B (en) * 2016-07-27 2019-06-25 宁波吉利汽车研究开发有限公司 Automotive thermal tube manages system and automobile
CN106274513A (en) * 2016-08-31 2017-01-04 北京新能源汽车股份有限公司 The heat control method of a kind of stroke-increasing electric automobile and system
CN106274513B (en) * 2016-08-31 2018-11-27 北京新能源汽车股份有限公司 A kind of heat control method and system of stroke-increasing electric automobile
DE102017202472A1 (en) 2017-02-15 2018-08-16 Volkswagen Aktiengesellschaft Air conditioning device for a motor vehicle
DE102017202472B4 (en) 2017-02-15 2023-03-02 Volkswagen Aktiengesellschaft Air conditioning device for a motor vehicle
US11091007B2 (en) 2018-09-11 2021-08-17 C.R.F. Societè Consortile per Azioni System for thermal management of the components of a hybrid vehicle
EP3623183A1 (en) * 2018-09-11 2020-03-18 C.R.F. Società Consortile per Azioni A system for thermal management of the components of a hybrid vehicle
CN111231771B (en) * 2018-11-29 2021-08-10 比亚迪股份有限公司 Vehicle thermal management system, control method thereof and vehicle
CN111231771A (en) * 2018-11-29 2020-06-05 比亚迪股份有限公司 Vehicle thermal management system, control method thereof and vehicle
CN114750648A (en) * 2022-05-09 2022-07-15 深圳市东方芯愿新能源有限公司 Power battery pack temperature control system adopting heat pump and electric automobile

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