DE102010004903A1 - Hybrid vehicle, has separate hybrid cooling circuit provided for hybrid components that are attached to secondary drive, where hybrid cooling circuit is designed independent of main cooling circuit, and has separate hybrid cooler - Google Patents

Hybrid vehicle, has separate hybrid cooling circuit provided for hybrid components that are attached to secondary drive, where hybrid cooling circuit is designed independent of main cooling circuit, and has separate hybrid cooler Download PDF

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DE102010004903A1
DE102010004903A1 DE102010004903A DE102010004903A DE102010004903A1 DE 102010004903 A1 DE102010004903 A1 DE 102010004903A1 DE 102010004903 A DE102010004903 A DE 102010004903A DE 102010004903 A DE102010004903 A DE 102010004903A DE 102010004903 A1 DE102010004903 A1 DE 102010004903A1
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hybrid
cooling circuit
separate
cooler
hybrid vehicle
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German (de)
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Jonas 71640 Hohenstein
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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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/24—Hybrid vehicles
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The hybrid vehicle (1) has a primary drive comprising a primary engine i.e. internal combustion engine, and a secondary drive comprising a secondary engine i.e. electric machine (20). A separate hybrid cooling circuit (5) is provided for hybrid components that are attached to the secondary drive, where the hybrid cooling circuit is designed independent of a main cooling circuit. The hybrid circuit has a separate hybrid cooler (15) that is designed as a fluid cooler and an electrically-driven water pump (10), where the hybrid cooler is arranged downstream of the pump.

Description

Die Erfindung betrifft ein Hybridfahrzeug mit einem primären Antrieb und einem sekundären Antrieb, und mit einem Hauptkühlkreislauf.The invention relates to a hybrid vehicle with a primary drive and a secondary drive, and with a main cooling circuit.

Aufgabe der Erfindung ist es, die Betriebseigenschaften eines Hybridfahrzeugs gemäß dem Oberbegriff des Anspruchs 1 zu verbessern.The object of the invention is to improve the operating characteristics of a hybrid vehicle according to the preamble of claim 1.

Die Aufgabe ist bei einem Hybridfahrzeug mit einem primären Antrieb und einem sekundären Antrieb, und mit einem Hauptkühlkreislauf, dadurch gelöst, dass für Hybridkomponenten, die dem sekundären Antrieb zugeordnet sind, ein separater Hybridkühlkreislauf vorgesehen ist, der unabhängig von dem Hauptkühlkreislauf ist. Der Hauptkühlkreislauf ist insbesondere einer primären Antriebsmaschine zugeordnet, die vorzugsweise als Brennkraftmaschine ausgeführt ist. Eine Kühlwasserpumpe des Hauptkühlkreislaufs ist vorzugsweise mechanisch durch die primäre Antriebsmaschine angetrieben. Durch den separaten Hybridkühlkreislauf wird sichergestellt, dass eine sekundäre Antriebsmaschine mit den ihr zugeordneten Hybridkomponenten auch dann ausreichend gekühlt wird, wenn die primäre Antriebsmaschine abgeschaltet ist und der Hauptkühlkreislauf nicht arbeitet.The object is achieved in a hybrid vehicle with a primary drive and a secondary drive, and with a main cooling circuit, in that for hybrid components, which are assigned to the secondary drive, a separate hybrid cooling circuit is provided, which is independent of the main cooling circuit. The main cooling circuit is assigned in particular to a primary drive machine, which is preferably designed as an internal combustion engine. A cooling water pump of the main cooling circuit is preferably driven mechanically by the primary drive machine. The separate hybrid cooling circuit ensures that a secondary engine with its associated hybrid components is sufficiently cooled even when the primary engine is switched off and the main cooling circuit is not working.

Ein bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass mehrere Hybridkomponenten, die dem sekundären Antrieb zugeordnet sind, in dem Hybridkühlkreislauf parallel geschaltet sind. Dadurch wird sichergestellt, dass gleichzeitig mehrere Hybridkomponenten gekühlt werden können.A preferred embodiment of the hybrid vehicle is characterized in that a plurality of hybrid components, which are assigned to the secondary drive, are connected in parallel in the hybrid cooling circuit. This ensures that several hybrid components can be cooled simultaneously.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass der Hybridkühlkreislauf einen separaten Hybridkühler umfasst. Der Hybridkühler ist vorzugsweise den Hybridkomponenten vorgeschaltet.A further preferred embodiment of the hybrid vehicle is characterized in that the hybrid cooling circuit comprises a separate hybrid radiator. The hybrid cooler is preferably connected upstream of the hybrid components.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass der Hybridkühler als Flüssigkeitskühler ausgeführt ist. Als Kühlflüssigkeit wird vorzugsweise Wasser mit entsprechenden Zusätzen verwendet. Der Flüssigkeitskühler wird daher auch als Wasserkühler bezeichnet.Another preferred embodiment of the hybrid vehicle is characterized in that the hybrid cooler is designed as a liquid cooler. The cooling liquid used is preferably water with appropriate additives. The liquid cooler is therefore also referred to as a water cooler.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass der Hybridkühlkreislauf eine separate Kühlflüssigkeitspumpe umfasst. Die Kühlflüssigkeitspumpe wird auch als Wasserpumpe bezeichnet. Der Hybridkühler ist vorzugsweise zwischen die Kühlflüssigkeitspumpe und die zu kühlenden Hybridkomponenten geschaltet.Another preferred embodiment of the hybrid vehicle is characterized in that the hybrid cooling circuit comprises a separate coolant pump. The coolant pump is also referred to as a water pump. The hybrid cooler is preferably connected between the coolant pump and the hybrid components to be cooled.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass die Kühlflüssigkeitspumpe temperaturgeregelt ist. Die Kühlflüssigkeitspumpe kann über ein geeignetes Steuergerät mit Hilfe von Temperaturmesswerten geregelt werden, die zum Beispiel von einem Temperatursensor im Vorlauf des Hybridkühlers erfasst werden.A further preferred embodiment of the hybrid vehicle is characterized in that the cooling liquid pump is temperature-controlled. The coolant pump can be controlled via a suitable control unit with the aid of temperature readings, which are detected, for example, by a temperature sensor in the flow of the hybrid radiator.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass in dem Hybridkühlkreislauf eine Elektromaschine und ein Umrichter für die Elektromaschine parallel geschaltet sind. Bei der Elektromaschine und dem Umrichter handelt es sich um Hybridkomponenten, die dem sekundären Antrieb zugeordnet sind.Another preferred exemplary embodiment of the hybrid vehicle is characterized in that an electric machine and a converter for the electric machine are connected in parallel in the hybrid cooling circuit. The electric machine and the inverter are hybrid components associated with the secondary drive.

Die Elektromaschine stellt vorzugsweise die sekundäre Antriebsmaschine dar, die allein zum Antrieb des Hybridfahrzeugs verwendet werden kann.The electric machine preferably represents the secondary drive machine, which can be used solely to drive the hybrid vehicle.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass der Hybridkühlkreislauf einen Ausgleichsbehälter umfasst. Der Ausgleichsbehälter ist vorzugsweise dem Hybridkühler nachgeschaltet.Another preferred embodiment of the hybrid vehicle is characterized in that the hybrid cooling circuit comprises a surge tank. The expansion tank is preferably connected downstream of the hybrid cooler.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass der Hybridkühlkreislauf eine Entlüftungsvorrichtung umfasst. Die Entlüftungsvorrichtung ist vorzugsweise im Anschlussbereich des Umrichters angeordnet.A further preferred exemplary embodiment of the hybrid vehicle is characterized in that the hybrid cooling circuit comprises a ventilation device. The venting device is preferably arranged in the connection region of the converter.

Ein weiteres bevorzugtes Ausführungsbeispiel des Hybridfahrzeugs ist dadurch gekennzeichnet, dass der Hybridkühlkreislauf mindestens einen Sensor umfasst. Bei dem Sensor handelt es sich zum Beispiel um einen Temperatursensor im Kühlervorlauf. Alternativ oder zusätzlich kann ein Drucksensor im Kühlerrücklauf angeordnet sein. Der Drucksensor im Kühlerrücklauf dient zum Beispiel dazu, Schäden an dem Hybridkühlkreislauf durch Steinschlag zu detektieren, die einen Druckabfall im Hybridkühlkreislauf bewirken.A further preferred embodiment of the hybrid vehicle is characterized in that the hybrid cooling circuit comprises at least one sensor. The sensor is, for example, a temperature sensor in the radiator feed. Alternatively or additionally, a pressure sensor may be arranged in the radiator return. The pressure sensor in the radiator return serves, for example, to detect damage to the hybrid cooling circuit by rockfall, which cause a pressure drop in the hybrid cooling circuit.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel im Einzelnen beschrieben ist.Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, an embodiment is described in detail.

In der einzigen beiliegenden Figur ist ein Hybridfahrzeug mit einem Hybridkreis stark vereinfacht dargestellt.In the single accompanying figure, a hybrid vehicle with a hybrid circuit is shown greatly simplified.

In der beiliegenden 1 ist ein Hybridfahrzeug 1 stark vereinfacht dargestellt. Das Hybridfahrzeug 1 umfasst einen primären Antrieb mit einer primären Antriebsmaschine, die als Brennkraftmaschine ausgeführt ist. Ein sekundärer Antrieb des Hybridfahrzeugs 1 umfasst eine sekundäre Antriebsmaschine, die als Elektromaschine 20 ausgeführt ist.In the enclosed 1 is a hybrid vehicle 1 shown greatly simplified. The hybrid vehicle 1 includes a primary drive with a primary drive engine, which is designed as an internal combustion engine. A secondary drive of the hybrid vehicle 1 includes a secondary drive machine acting as an electric machine 20 is executed.

Das Hybridfahrzeug 1 kann allein durch den primären Antrieb oder allein durch den sekundären Antrieb angetrieben werden. Es ist auch möglich, das Hybridfahrzeug 1 gleichzeitig mit dem primären Antrieb und dem sekundären Antrieb anzutreiben. Dem primären Antrieb ist ein Hauptkühlkreislauf zugeordnet, der zum Beispiel eine Wasserpumpe und einen Wasserkühler umfasst.The hybrid vehicle 1 can be powered solely by the primary drive or by the secondary drive alone. It is also possible the hybrid vehicle 1 to drive simultaneously with the primary drive and the secondary drive. The primary drive is associated with a main cooling circuit comprising, for example, a water pump and a water cooler.

Gemäß einem wesentlichen Aspekt der Erfindung ist dem sekundären Antrieb des Hybridfahrzeugs 1 ein von dem Hauptkühlkreis unabhängiger separater Hybridkühlkreislauf 5 zugeordnet. Der Hybridkühlkreislauf 5 umfasst eine eigene Wasserpumpe 10, die elektrisch angetrieben ist. Das liefert den Vorteil, dass der Hybridkühlkreislauf 5 mit der Wasserpumpe 10 auch dann betrieben werden kann, wenn die primäre Antriebsmaschine, insbesondere die Brennkraftmaschine, still steht.According to an essential aspect of the invention is the secondary drive of the hybrid vehicle 1 a separate hybrid cooling circuit independent of the main cooling circuit 5 assigned. The hybrid cooling circuit 5 includes its own water pump 10 which is electrically powered. This provides the advantage that the hybrid refrigeration cycle 5 with the water pump 10 can also be operated when the primary drive machine, in particular the internal combustion engine, stands still.

Der Wasserpumpe 10 ist ein Kühler 15 nachgeschaltet, der als Flüssigkeitskühler, insbesondere Wasserkühler, ausgeführt ist und auch als Hybridkühler bezeichnet wird.The water pump 10 is a cooler 15 downstream, which is designed as a liquid cooler, in particular water cooler, and is also referred to as a hybrid cooler.

Dem Kühler 15 sind zwei Hybridkomponenten nachgeschaltet, die dem sekundären Antrieb zugeordnet sind. Bei den Hybridkomponenten handelt es sich um eine Elektromaschine 20 und um einen Umrichter 25. Die Elektromaschine 20 stellt die sekundäre Antriebsmaschine des sekundären Antriebs dar. Der Umrichter 25 ist der Elektromaschine 20 zugeordnet und im Hybridkühlkreislauf 5 parallel zu dieser geschaltet.The radiator 15 are followed by two hybrid components, which are assigned to the secondary drive. The hybrid components are an electric machine 20 and an inverter 25 , The electric machine 20 represents the secondary drive of the secondary drive. The inverter 25 is the electric machine 20 assigned and in the hybrid cooling circuit 5 switched parallel to this.

Ein Ausgleichsbehälter 30 ist an den Kühler 15 angeschlossen. Im Anschlussbereich des Umrichters 25 eine Entlüftungsvorrichtung vorgesehen.A surge tank 30 is on the radiator 15 connected. In the connection area of the inverter 25 provided a venting device.

Claims (10)

Hybridfahrzeug mit einem primären Antrieb und einem sekundären Antrieb, und mit einem Hauptkühlkreislauf, dadurch gekennzeichnet, dass für Hybridkomponenten (20, 25), die dem sekundären Antrieb zugeordnet sind, ein separater Hybridkühlkreislauf (5) vorgesehen ist, der unabhängig von dem Hauptkühlkreislauf ist.Hybrid vehicle with a primary drive and a secondary drive, and with a main cooling circuit, characterized in that for hybrid components ( 20 . 25 ) associated with the secondary drive, a separate hybrid refrigeration cycle ( 5 ) is provided, which is independent of the main cooling circuit. Hybridfahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass mehrere Hybridkomponenten (20, 25), die dem sekundären Antrieb zugeordnet sind, in dem Hybridkühlkreislauf (5) parallel geschaltet sind.Hybrid vehicle according to claim 1, characterized in that several hybrid components ( 20 . 25 ) associated with the secondary drive in the hybrid refrigeration cycle ( 5 ) are connected in parallel. Hybridfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Hybridkühlkreislauf (5) einen separaten Hybridkühler (15) umfasst.Hybrid vehicle according to one of the preceding claims, characterized in that the hybrid cooling circuit ( 5 ) a separate hybrid cooler ( 15 ). Hybridfahrzeug nach Anspruch 3, dadurch gekennzeichnet, dass der Hybridkühler (15) als Flüssigkeitskühler ausgeführt ist.Hybrid vehicle according to claim 3, characterized in that the hybrid cooler ( 15 ) is designed as a liquid cooler. Hybridfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Hybridkühlkreislauf (5) eine separate Kühlflüssigkeitspumpe (10) umfasst.Hybrid vehicle according to one of the preceding claims, characterized in that the hybrid cooling circuit ( 5 ) a separate coolant pump ( 10 ). Hybridfahrzeug nach Anspruch 5, dadurch gekennzeichnet, dass die Kühlflüssigkeitspumpe (10) temperaturgeregelt ist.Hybrid vehicle according to claim 5, characterized in that the cooling liquid pump ( 10 ) is temperature controlled. Hybridfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in dem Hybridkühlkreislauf (5) eine Elektromaschine (20) und ein Umrichter (25) für die Elektromaschine parallel geschaltet sind.Hybrid vehicle according to one of the preceding claims, characterized in that in the hybrid cooling circuit ( 5 ) an electric machine ( 20 ) and a converter ( 25 ) are connected in parallel for the electric machine. Hybridfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Hybridkühlkreislauf (5) einen Ausgleichsbehälter (30) umfasst.Hybrid vehicle according to one of the preceding claims, characterized in that the hybrid cooling circuit ( 5 ) a surge tank ( 30 ). Hybridfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Hybridkühlkreislauf (5) eine Entlüftungsvorrichtung umfasst.Hybrid vehicle according to one of the preceding claims, characterized in that the hybrid cooling circuit ( 5 ) comprises a venting device. Hybridfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Hybridkühlkreislauf (5) mindestens einen Sensor umfasst.Hybrid vehicle according to one of the preceding claims, characterized in that the hybrid cooling circuit ( 5 ) comprises at least one sensor.
DE102010004903A 2010-01-19 2010-01-19 Hybrid vehicle, has separate hybrid cooling circuit provided for hybrid components that are attached to secondary drive, where hybrid cooling circuit is designed independent of main cooling circuit, and has separate hybrid cooler Ceased DE102010004903A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013015207A1 (en) 2013-09-13 2015-03-19 Audi Ag Cooling system for a hybrid vehicle comprising at least one electric drive machine and at least one internal combustion engine and method for its regulation
DE102013019687B3 (en) * 2013-11-26 2015-03-26 Audi Ag Cooling system for a hybrid vehicle comprising at least one electric drive machine and at least one internal combustion engine and method for its regulation
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002004860A (en) * 2000-06-27 2002-01-09 Nissan Motor Co Ltd Cooling device for hybrid electric vehicle
DE102007001814A1 (en) * 2007-01-12 2008-07-17 Daimler Ag Device for cooling of power electronics in motor vehicle, has blower and low-temperature cooling circuit and power electronics is arranged in low-temperature cooling circuit, which has coolant pump and radiator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002004860A (en) * 2000-06-27 2002-01-09 Nissan Motor Co Ltd Cooling device for hybrid electric vehicle
DE102007001814A1 (en) * 2007-01-12 2008-07-17 Daimler Ag Device for cooling of power electronics in motor vehicle, has blower and low-temperature cooling circuit and power electronics is arranged in low-temperature cooling circuit, which has coolant pump and radiator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013015207A1 (en) 2013-09-13 2015-03-19 Audi Ag Cooling system for a hybrid vehicle comprising at least one electric drive machine and at least one internal combustion engine and method for its regulation
DE102013015207B4 (en) 2013-09-13 2018-10-11 Audi Ag Cooling system for a hybrid vehicle comprising at least one electric drive machine and at least one internal combustion engine and method for its regulation
DE102013019687B3 (en) * 2013-11-26 2015-03-26 Audi Ag Cooling system for a hybrid vehicle comprising at least one electric drive machine and at least one internal combustion engine and method for its regulation
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

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