DE102010021044A1 - Mild hybrid vehicle i.e. passenger car, has high volt battery and pulse inverter assigned to periphery of electric machine, where machine and its periphery are independent of combustion engine and its periphery - Google Patents
Mild hybrid vehicle i.e. passenger car, has high volt battery and pulse inverter assigned to periphery of electric machine, where machine and its periphery are independent of combustion engine and its periphery Download PDFInfo
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- DE102010021044A1 DE102010021044A1 DE102010021044A DE102010021044A DE102010021044A1 DE 102010021044 A1 DE102010021044 A1 DE 102010021044A1 DE 102010021044 A DE102010021044 A DE 102010021044A DE 102010021044 A DE102010021044 A DE 102010021044A DE 102010021044 A1 DE102010021044 A1 DE 102010021044A1
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 39
- 238000004378 air conditioning Methods 0.000 claims description 12
- 239000007858 starting material Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 239000003999 initiator Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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- 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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
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- 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
- 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 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 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- 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
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft ein Mildhybrid-Fahrzeug mit einem Verbrennungsmotor zum Antreiben einer ersten Fahrzeugachse und mindestens einer elektrischen Maschine zum Antreiben einer zweiten Fahrzeugachse im Motorbetrieb sowie zum Rückgewinnen von Energie im Generatorbetrieb über diese Fahrzeugachse.The invention relates to a mild hybrid vehicle having an internal combustion engine for driving a first vehicle axle and at least one electric machine for driving a second vehicle axle during engine operation and for recovering energy in generator operation via this vehicle axle.
Bei einem Mildhybrid-Fahrzeug unterstützt die elektrische Maschine im Motorbetrieb den Verbrennungsmotor zur Leistungssteigerung und zur Verbrauchsreduzierung. Bremsenergie kann im Generatorbetrieb der elektrischen Maschine teilweise wiedergewonnen werden. Im Gegensatz hierzu ist ein Vollhybrid-Fahrzeug mit einer wesentlich höheren elektromotorischen Leistung in der Lage, auch rein elektromotorisch zu fahren, einschließlich des Anfahrens und Beschleunigens.In a mild hybrid vehicle, the electric machine supports the engine during engine operation to increase performance and to reduce fuel consumption. Braking energy can be partially recovered in generator operation of the electric machine. In contrast, a full hybrid vehicle with significantly higher electromotive power is able to drive purely by electric motor, including startup and acceleration.
Der Vorteil eines Mildhybrid-Fahrzeuges ist darin zu sehen, dass mit relativ wenig Aufwand in vorhandene Fahrzeugkonzepte diese Antriebsart integriert werden kann. Für Vollhybrid-Fahrzeuge ist demgegenüber wesentlich mehr Entwicklungsaufwand und höhere Anzahl an Komponenten erforderlich. Insbesondere erfordert ein Vollhybrid-Antrieb recht hohe Energiespeicherkapazitäten. Das hiermit einhergehende höhere Gewicht der Hochvolt-Batterie verringert den Nutzen des Vollhybridantriebs. Es wird versucht, dies durch Einsparungsmöglichkeiten an anderer Stelle, z. B. durch ein vereinfachtes Getriebe, Entfallen der Lichtmaschine und des Anlassers teilweise zu kompensieren.The advantage of a mild hybrid vehicle is the fact that with relatively little effort in existing vehicle concepts this type of drive can be integrated. For full hybrid vehicles on the other hand much more development effort and higher number of components is required. In particular, a full hybrid drive requires quite high energy storage capacities. The associated higher weight of the high-voltage battery reduces the benefit of the full hybrid drive. It tries to do this by savings elsewhere, z. B. by a simplified transmission, elimination of the alternator and the starter partially compensate.
Aufgabe der vorliegenden Erfindung ist es, ein Mildhybrid-Fahrzeug zu schaffen, das sich durch eine besonders einfache und kostengünstige Konzeption auszeichnet.Object of the present invention is to provide a mild hybrid vehicle, which is characterized by a particularly simple and inexpensive conception.
Gelöst wird die Aufgabe durch ein Mildhybridfahrzeug der eingangs genannten Art, bei dem dem Verbrennungsmotor eine herkömmliche Peripherie mit Niedervolt-Batterie, Generator, Starter und Bordnetz zugeordnet ist und die elektrische Maschine sowie deren Peripherie unabhängig von dem Verbrennungsmotor und dessen Peripherie konzipiert sind, wobei der Peripherie der elektrischen Maschine eine Hochvolt-Batterie und ein Pulswechselrichter zugeordnet sind.The problem is solved by a Mildhybridfahrzeug of the type mentioned, in which the internal combustion engine, a conventional periphery with low-voltage battery, generator, starter and electrical system is assigned and the electrical machine and its periphery are designed independently of the engine and its periphery, the Periphery of the electrical machine are associated with a high-voltage battery and a pulse inverter.
Das erfindungsgemäße Mildhybrid-Fahrzeug zeichnet sich somit dadurch aus, dass das Fahrzeug gegenüber einem herkömmlichen Fahrzeug, das ausschließlich mittels eines Verbrennungsmotors angetrieben wird, unverändert bzw. nahezu unverändert ist.The mild hybrid vehicle according to the invention is thus distinguished by the fact that the vehicle is unchanged or virtually unchanged compared with a conventional vehicle, which is driven exclusively by means of an internal combustion engine.
Demzufolge ist dem erfindungsgemäßen Mildhybrid-Fahrzeug bezüglich des Verbrennungsmotors die herkömmliche Peripherie eines ausschließlich mittels des Verbrennungsmotors antreibbaren Fahrzeuges zugeordnet, nämlich die Niedervolt-Batterie, der Generator, der Starter und das Bordnetz. Die mindestens eine elektrische Maschine zum Antreiben der zweiten Achse im Motorbetrieb sowie zum Rückgewinnen von Energie im Generatorbetrieb über diese Fahrzeugachse ist hingegen unabhängig zum Verbrennungsmotor konzipiert. Zur Bildung des Mildhybrid-Fahrzeuges ist es demnach nur erforderlich, ein herkömmliches, mittels des Verbrennungsmotors antreibbares Fahrzeug, ohne Änderung der grundsätzlichen Konzeption dieses Fahrzeuges, um die mindestens eine elektrische Maschine und deren Peripherie zu ergänzen. Bei dieser Peripherie handelt es sich um die Hochvolt-Batterie, den Pulswechselrichter sowie die notwendige Verkabelung und Mildhybrid-Steuerungssoftware.Accordingly, the Mildhybrid vehicle according to the invention with respect to the internal combustion engine, the conventional periphery of a driven exclusively by the internal combustion engine vehicle assigned, namely the low-voltage battery, the generator, the starter and the electrical system. The at least one electric machine for driving the second axis during engine operation and for recovering energy in generator operation via this vehicle axle, however, is designed independently of the internal combustion engine. Accordingly, to form the mild hybrid vehicle, it is only necessary to supplement a conventional vehicle which can be driven by the internal combustion engine without changing the basic design of this vehicle in order to supplement the at least one electric machine and its periphery. These peripherals are the high-voltage battery, the pulse-controlled inverter as well as the necessary cabling and mild hybrid control software.
Bei der Niedervolt-Batterie handelt es sich insbesondere um eine Standard 12 V-Batterie, bei einem Generator um einen 12 V-Generator und beim Bordnetz um ein 12 V-Bordnetz.In particular, the low-voltage battery is a standard 12 V battery, a generator with a 12 V generator and the on-board electrical system with a 12 V electrical system.
Die Hochvolt-Batterie besitzt insbesondere eine Spannung, die größer ist als 60 V. Der Pulswechselrichter ist insbesondere als einfachinverter Pulswechselrichter ausgebildet. Dabei kann der Pulswechselrichter auch die Mildhybrid-Steuerungssoftware umfassen.In particular, the high-voltage battery has a voltage which is greater than 60 V. The pulse-controlled inverter is designed in particular as a simple-inverter pulse-controlled inverter. The pulse inverter may also include the mild hybrid control software.
Bei dem erfindungsgemäßen Mildhybrid-Fahrzeug wird demzufolge die eine Achse verbrennungsmotorisch angetrieben und die zweite Achse elektromotorisch angetrieben, insbesondere mit einer Leistung von mehr als 10 kW, beispielsweise mit einer Leistung von 20 kW. Der Verbrennungsmotor für die eine Achse ist in herkömmlicher Weise ausgebildet und weist den Generator, auch als Lichtmaschine bezeichnet, und den Starter für den Verbrennungsmotor samt zugeordnetem 12 V-Bordnetz auf. Die andere Achse weist entweder eine einzelne Elektromaschine auf, um die Räder dieser Achse über ein Differential anzutreiben oder es sind zwei getrennte Elektromaschinen zum Antrieb eines jeweiligen Rades vorgesehen. Die Elektromaschine bzw. die Elektromaschinen werden über den Pulswechselrichter aus der Hochvolt-Batterie, auch als Traktionsbatterie bezeichnet, mit Strom versorgt (motorischer Betrieb) bzw. Laden diese Batterie, wenn das Mildhybrid-Fahrzeug fährt (generatorischer Betrieb). Ein DC/DC-Wandler ist nicht vorhanden bzw. erforderlich, da das 12 V-Bordnetz und eine eigene 12 V-Batterie erhalten bleiben. Damit wird, neben den üblichen Mildhybrid-Funktionen, zusätzlich ein zeitweiser Allradantrieb des Mildhybrid-Fahrzeugs möglich.Accordingly, in the mild hybrid vehicle according to the invention, one axle is driven by an internal combustion engine and the second axle is driven by an electric motor, in particular with a power of more than 10 kW, for example with a power of 20 kW. The internal combustion engine for the one axis is formed in a conventional manner and has the generator, also referred to as an alternator, and the starter for the internal combustion engine together with associated 12 V electrical system. The other axle has either a single electric machine to drive the wheels of this axle via a differential or two separate electric machines are provided for driving a respective wheel. The electric machine or the electric machines are powered by the pulse inverter from the high-voltage battery, also referred to as a traction battery, with power (motor operation) or charging this battery when the mild hybrid vehicle drives (generator operation). A DC / DC converter is not available or required because the 12 V electrical system and its own 12 V battery are maintained. Thus, in addition to the usual mild hybrid functions, additionally a temporary four-wheel drive of the mild hybrid vehicle possible.
Weist die Peripherie des Verbrennungsmotors zusätzlich einen Klimakompressor auf, wird dieser Klimakompressor des Mildhybrid-Fahrzeugs in herkömmlicher Weise vom Verbrennungsmotor angetrieben, zur Klimatisierung des Fahrzeuginnenraums. Während bei einem Vollhybrid-Fahrzeug aufwändige Maßnahmen zur Kühlung der Hochvolt-Batterie erforderlich sind, ist dies bei dem Mildhybrid-Fahrzeug nicht erforderlich. Es reicht aus, wenn der Peripherie der elektrischen Maschine eine Luft-Kühleinrichtung für die Hochvoltbatterie zugeordnet ist. Alternativ kann die Hochvoltbatterie eine Flüssigkühlung aufweisen. If the periphery of the internal combustion engine additionally has an air-conditioning compressor, this air-conditioning compressor of the mild hybrid vehicle is conventionally driven by the internal combustion engine for air-conditioning the vehicle interior. While complex measures for cooling the high-voltage battery are required in a full-hybrid vehicle, this is not necessary in the mild hybrid vehicle. It is sufficient if the periphery of the electrical machine is associated with an air cooling device for the high-voltage battery. Alternatively, the high-voltage battery may have a liquid cooling.
Die beschriebene Ausbildung des Mildhybrid-Fahrzeugs verdeutlicht dessen sehr einfaches und damit kostengünstiges Konzept aufgrund der Unabhängigkeit von Verbrennungsmotor und dessen Peripherie von der elektrischen Maschine und deren Peripherie. Insbesondere ist keine funktionelle Verbindung zwischen Verbrennungsmotor und dessen Peripherie mit der elektrischen Maschine und deren Peripherie erforderlich, beispielsweise keine Leitungen zu und von der Hochvolt-Batterie innerhalb des Fahrzeugs von hinten nach vorne und umgekehrt zu verlegen bzw. Kühlleitungen für die Hochvoltbatterie im Fahrzeug zu verlegen bzw. ein Kühlsystem der Hochvoltbatterie in das Kühlsystem des Verbrennungsmotors zu integrieren.The described design of the mild hybrid vehicle illustrates its very simple and therefore cost-effective concept due to the independence of the internal combustion engine and its periphery from the electrical machine and its periphery. In particular, no functional connection between the internal combustion engine and its periphery with the electrical machine and its periphery is required, for example, no lines to and from the high-voltage battery inside the vehicle from back to front and vice versa or relocate cooling lines for the high-voltage battery in the vehicle or to integrate a cooling system of the high-voltage battery in the cooling system of the internal combustion engine.
Allenfalls ist vorgesehen, den Klimakompressor des Mildhybrid-Fahrzeugs, der als mechanischer Klimakompressor ausgebildet ist und vom Verbrennungsmotor angetrieben wird, zusätzlich zur Kühlung der Hochvolt-Batterie über die Klimaanlage zu verwenden. In jedem Fall ist beim Stillstand des Verbrennungsmotors keine Klimaleistung durch den Klimakompressor verfügbar. Deshalb kann zusätzlich ein Speicherverdampfer vorgesehen sein, zur Aufrechterhaltung der Klimatisierung des Innenraumes und/oder zur Kühlung der Hochvolt-Batterie. Bei zu starker Temperaturerhöhung im Innenraum bzw. in der Hochvolt-Batterie wird der Verbrennungsmotor wieder gestartet.At most, it is provided to use the air conditioning compressor of the mild hybrid vehicle, which is designed as a mechanical air compressor and is driven by the internal combustion engine, in addition to cooling the high-voltage battery to use the air conditioning. In any case, when the internal combustion engine is at a standstill, no air conditioning capacity is available through the air conditioning compressor. Therefore, in addition, a storage evaporator may be provided to maintain the air conditioning of the interior and / or for cooling the high-voltage battery. Too much temperature increase in the interior or in the high-voltage battery, the engine is restarted.
Das erfindungsgemäße Mildhybrid-Fahrzeug benötigt somit auch keinen Riemenstartergenerator, wie er bei Vollhybrid-Fahrzeugen in aller Regel zur Anwendung kommt.The mild hybrid vehicle according to the invention thus also requires no belt starter generator, as is generally the case in full hybrid vehicles.
Über die eine Achse und die im Generatorbetrieb befindliche elektrische Maschine erfolgt die Rekuperation und das Laden der Hochvolt-Batterie und über die im Motorbetrieb befindliche Maschine das Boosten der der elektrischen Maschine zugeordneten Fahrzeugachse.About the one axis and the electrical machine located in the generator operation, the recuperation and charging of the high-voltage battery and the motor located in the engine operating the boosting of the electrical machine associated vehicle axle.
Die elektrische Maschine ist längs oder quer angeordnet und insbesondere in einem Gehäuse gelagert, das der Aufnahme von elektrischen Antrieben unterschiedlicher Baugröße dient. Eine Leistungssteigerung der elektrischen Maschine ist auch über eine Spannungserhöhung aus der der Hochvolt-Batterie möglich. Durch diesen modularen Ansatz lässt sich eine baulich besonders einfache und kostengünstige Variante verwirklichen. Je nach maximalem Leistungsbedarf wird eine entsprechend leistungsmäßig dimensionierte elektrische Maschine verwendet. Demzufolge kann das erfindungsgemäße Konzept bei den unterschiedlichsten Mildhybrid-Fahrzeugen verwendet werden.The electric machine is arranged longitudinally or transversely and in particular mounted in a housing which serves to receive electrical drives of different sizes. An increase in performance of the electric machine is also possible via a voltage increase from that of the high-voltage battery. This modular approach allows a structurally particularly simple and cost-effective variant to be realized. Depending on the maximum power requirement, an appropriately sized electrical machine is used. Consequently, the inventive concept can be used in a variety of mild hybrid vehicles.
Es ist insbesondere vorgesehen, dass die erste Fahrzeugachse die Hinterachse und die zweite Fahrzeugachse die Vorderachse des Fahrzeugs ist. Der Verbrennungsmotor ist im Bereich der Hinterachse angeordnet und die mindestens eine elektrische Maschine im Bereich der Vorderachse des Fahrzeugs. Veränderungen des Fahrzeugs gegenüber der herkömmlichen Ausführung mit dem im Bereich der Hinterachse angeordneten Verbrennungsmotor beziehen sich demzufolge fast ausschließlich auf den vorderen Bereich des Fahrzeugs, somit den Bereich, der der Vorderachse zugeordnet ist. Eine analoge Anwendung ergibt sich, wenn der Verbrennungsmotor im Bereich der Vorderachse angeordnet ist und die mindestens eine elektrische Maschine im Bereich der Hinterachse des Fahrzeugs.In particular, it is provided that the first vehicle axle is the rear axle and the second vehicle axle is the front axle of the vehicle. The internal combustion engine is arranged in the region of the rear axle and the at least one electric machine in the region of the front axle of the vehicle. Changes of the vehicle compared with the conventional design with the combustion engine arranged in the region of the rear axle therefore relate almost exclusively to the front region of the vehicle, thus the region associated with the front axle. An analogous application results when the internal combustion engine is arranged in the region of the front axle and the at least one electric machine in the region of the rear axle of the vehicle.
Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen, der beigefügten Bezeichnung und der Beschreibung des in der Zeichnung wiedergegebenen Ausführungsbeispiels, ohne auf dieses beschränkt zu sein.Further features of the invention will become apparent from the dependent claims, the appended name and the description of the reproduced in the drawing embodiment, without being limited thereto.
Es zeigt in schematischer Darstellung:It shows in a schematic representation:
Das Mildhybrid-Fahrzeug
Mit der Bezugsziffer
Im vorderen Bereich des Fahrzeugs ist eine Hochvolt-Batterie
Die beschriebene Ausführungsform benötigt keine Änderungen am Verbrennungsmotor
Claims (10)
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DE102010021044.7A DE102010021044B4 (en) | 2010-05-19 | 2010-05-19 | Mild hybrid vehicle |
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DE102010021044.7A DE102010021044B4 (en) | 2010-05-19 | 2010-05-19 | Mild hybrid vehicle |
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DE3940172A1 (en) | 1989-12-05 | 1991-06-06 | Audi Ag | TWO AXLE VEHICLE |
DE4206360B4 (en) | 1992-02-29 | 2008-04-03 | Audi Ag | Two-axle motor vehicle with a self-sufficient, exchangeable drive unit |
JP2005253167A (en) | 2004-03-03 | 2005-09-15 | Hitachi Ltd | Vehicle driving unit and electric four-wheel drive vehicle using it |
DE102005024411B4 (en) | 2005-05-27 | 2010-09-16 | Audi Ag | Drive arrangement for a motor vehicle and method for operating the drive arrangement |
DE102010007634B4 (en) | 2010-02-05 | 2021-06-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for operating a hybrid vehicle |
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