DE102013205164B3 - Vehicle i.e. passenger car, has control device for mechanically connecting front and rear axles with respective electric motors, electrically connecting batteries with respective motors and storing generated electric energy in batteries - Google Patents

Vehicle i.e. passenger car, has control device for mechanically connecting front and rear axles with respective electric motors, electrically connecting batteries with respective motors and storing generated electric energy in batteries Download PDF

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Publication number
DE102013205164B3
DE102013205164B3 DE102013205164.6A DE102013205164A DE102013205164B3 DE 102013205164 B3 DE102013205164 B3 DE 102013205164B3 DE 102013205164 A DE102013205164 A DE 102013205164A DE 102013205164 B3 DE102013205164 B3 DE 102013205164B3
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Germany
Prior art keywords
vehicle
axle
electric motor
battery
generator
Prior art date
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Expired - Fee Related
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DE102013205164.6A
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German (de)
Inventor
Inge Otto
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Otto Inge De
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Indo Consulting & Trading Ltd
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Publication date
Application filed by Indo Consulting & Trading Ltd filed Critical Indo Consulting & Trading Ltd
Priority to DE202013104224U priority Critical patent/DE202013104224U1/en
Priority to DE102013205164.6A priority patent/DE102013205164B3/en
Application granted granted Critical
Publication of DE102013205164B3 publication Critical patent/DE102013205164B3/en
Expired - Fee Related legal-status Critical Current
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
    • 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
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/13—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines using AC generators and AC motors
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    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
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    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
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    • B60L53/18—Cables specially adapted for charging electric vehicles
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    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
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    • B65H75/425—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles attached to, or forming part of a vehicle, e.g. truck, trailer, vessel
    • H—ELECTRICITY
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • 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
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    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
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    • Y02T10/72—Electric energy management in electromobility
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The vehicle has an electric drive comprising electric motors (4A, 4B) for driving front and rear axles, and batteries (7A, 7B) provided as an energy source for the respective electric motors. Generators (6A, 6B) are mechanically connected with vehicle wheels for recovering electrical energy from movement energy of the vehicle and for storing the energy in the respective batteries. A control device (10) mechanically connects the axles with the respective motors, electrically connects the batteries with the respective motors and stores the generated energy in the batteries.

Description

Die Erfindung betrifft ein Fahrzeug mit Elektroantrieb, das einen mit den Fahrzeugrädern seiner Hinterachse mechanisch verbindbaren ersten Elektromotor zum Antrieb der Hinterachse, eine mit dem ersten Elektromotor elektrisch verbindbare erste Batterie als Energiequelle für den ersten Elektromotor, einen mit den Fahrzeugrädern der Hinterachse mechanisch verbindbaren ersten Generator zu Rückgewinnung elektrischer Energie aus der Bewegungsenergie des Fahrzeugs und zum Speichern der elektrischen Energie in der ersten Batterie aufweist.The invention relates to a vehicle with electric drive, a mechanically connected to the vehicle wheels of its rear first electric motor for driving the rear axle, an electrically connectable to the first electric motor first battery as an energy source for the first electric motor, one with the vehicle wheels of the rear axle mechanically connectable first generator for recovering electrical energy from the kinetic energy of the vehicle and for storing the electrical energy in the first battery.

Ein gattungsgemäßes Fahrzeug ist beispielsweise aus der DE 10 2011 108 446 A1 bekannt. Ein Elektromotor ist mit der in einer Batterie gespeicherten elektrischen Energie antreibbar. Beim Bremsen des Fahrzeugs dient der Elektromotor als Generator, um aus der Bewegungsenergie des Fahrzeugs elektrische Energie zurückzugewinnen und in der Batterie zu speichern. Auch bei einer längeren Talfahrt auf abschüssiger Straße kann elektrische Energie wiedergewonnen werden.A generic vehicle is for example from the DE 10 2011 108 446 A1 known. An electric motor is drivable with the electrical energy stored in a battery. When braking the vehicle, the electric motor serves as a generator to recover electrical energy from the kinetic energy of the vehicle and to store it in the battery. Even with a long descent on a sloping road electrical energy can be recovered.

Aus der DE 44 46 219 A1 ist ein elektrisch angetriebenes Fahrzeug mit zwei Elektromotoren an zwei Fahrzeugachsen bekannt, wobei beide Elektromotoren von einer Batterie gespeist werden können, um das Fahrzeug anzutreiben. Desweiteren ist auch ein generatorischer Bremsbetrieb mit Energierückgewinnung möglich, wobei die Batterie geladen wird.From the DE 44 46 219 A1 For example, an electrically driven vehicle having two electric motors on two vehicle axles is known, both of which electric motors can be powered by a battery to drive the vehicle. Furthermore, a regenerative braking operation with energy recovery is possible, the battery is charged.

Aus der US 6 387 007 B1 ist ein System zur Rückgewinnung von elektrischer Energie aus der Bewegungsenergie eines Fahrzeugs im Bremsbetrieb bekannt, bei dem mehrere Elektromotoren für den Antrieb und mehrere Generatoren für die Energierückgewinnung vorsehen sind, wobei die von den Generatoren erzeugte Energie in einer Batterie gespeichert wird.From the US Pat. No. 6,387,007 B1 For example, a system for recovering electrical energy from the kinetic energy of a vehicle in braking mode is known in which a plurality of electric motors for the drive and a plurality of generators for energy recovery are provided, wherein the energy generated by the generators is stored in a battery.

Aufgabe der Erfindung ist es, ein Fahrzeug der eingangs genannten Art anzugeben, das bei der Rückgewinnung elektrischer Energie aus der Bewegungsenergie des Fahrzeugs einen hohen Wirkungsgrad aufweist und elektrische Energie nicht nur beim normalen Bremsvorgang, sondern auch in anderen Fahrsituationen ermöglicht.The object of the invention is to provide a vehicle of the type mentioned, which has a high efficiency in the recovery of electrical energy from the kinetic energy of the vehicle and allows electrical energy not only during normal braking, but also in other driving situations.

Die erfindungsgemäße Lösung sieht vor, dass ein mit den Fahrzeugrädern der Vorderachse mechanisch verbindbarer zweiter Elektromotor zum Antrieb der Vorderachse, eine mit dem zweiten Elektromotor elektrisch verbindbare Batterie als Energiequelle für den zweiten Elektromotor, ein mit den Fahrzeugrädern der Vorderachse mechanisch verbindbarer zweiter Generator zu Rückgewinnung elektrischer Energie aus der Bewegungsenergie des Fahrzeugs und zum Speichern der elektrischen Energie in der zweiten Batterie vorgesehen ist und dass ein Steuergerät vorhanden ist, das entweder die Vorderachse oder die Hinterachse zum Antrieb des Fahrzeugs mit dem zugehörigen Elektromotor mechanisch verbindet, die zugehörige Batterie mit dem Elektromotor elektrisch verbindet und den Generator der jeweils anderen Achse mit dieser mechanisch verbindet und die erzeugte elektrische Energie in der Batterie der jeweils anderen Achse speichert.The solution according to the invention provides that a second electric motor mechanically connectable to the vehicle wheels of the front axle for driving the front axle, an electrically connectable to the second electric motor battery as an energy source for the second electric motor, a mechanically connectable to the vehicle wheels of the front axle second generator for recovering electrical Energy from the kinetic energy of the vehicle and for storing the electrical energy in the second battery is provided and that a control device is present, which mechanically connects either the front axle or the rear axle for driving the vehicle with the associated electric motor, the associated battery with the electric motor electrically connects and mechanically connects the generator of the other axis with this and stores the generated electrical energy in the battery of the other axis.

Beim Erfindungsgegenstand wird nicht der Elektromotor als Generator umgeschaltet, wenn elektrische Energie rückgewonnen werden soll, sondern hierfür ist ein besonderer Generator vorgesehen. Auch wird die rückgewonnene elektrische Energie nicht in derselben Batterie gespeichert, aus der der Elektromotor zum Antrieb des Fahrzeugs gespeist wird. Vielmehr ist erfindungsgemäß eine zweite Batterie vorgesehen, die mit dem separaten Generator verbunden ist und von diesem geladen wird. Beim erfindungsgemäßen Fahrzeug ist weder eine Umschaltung des Elektromotors zum Generator und umgekehrt noch ein abwechselndes Entladen und Laden ein und derselben Batterie vorgesehen. Der besondere Generator kann im Hinblick auf eine möglichst große Ausbeute an elektrischer Energie besser optimiert werden, als eine elektrische Maschine, die einerseits als Elektromotor und andererseits als Generator arbeiten muss und weder für den einen noch für den anderen Zweck optimiert sein kann. Vielmehr muss beim Stand der Technik ein Kompromiss zwischen der Optimierung als Elektromotor und der Optimierung als Generator gefunden werden. Des Weiteren geht Energie beim Umschalten von Elektromotorbetrieb auf Generatortrieb im Schaltgerät und in der Batterie verloren.In the subject invention, the electric motor is not switched as a generator when electrical energy is to be recovered, but this is a special generator is provided. Also, the recovered electrical energy is not stored in the same battery from which the electric motor is powered to drive the vehicle. Rather, a second battery is provided according to the invention, which is connected to the separate generator and is charged by this. In the vehicle according to the invention, neither a switching of the electric motor to the generator and vice versa nor an alternate discharging and charging one and the same battery is provided. The particular generator can be better optimized in terms of the greatest possible yield of electrical energy, as an electric machine that must work on the one hand as an electric motor and on the other hand as a generator and can not be optimized for one or the other purpose. Rather, a compromise between the optimization as an electric motor and optimization as a generator must be found in the prior art. Furthermore, energy is lost when switching from electric motor operation to generator drive in the switching device and in the battery.

Schließlich ist ein Fahrzeug mit zwei Antrieben an der Vorderachse und an der Hinterachse vielseitiger einsetzbar als ein Fahrzeug mit einem Antrieb an einer Fahrzeugachse. Im Normalbetrieb ist zwar lediglich der Antrieb über eine der beiden Fahrzeugachsen vorgesehen, es kann jedoch bei Bedarf kurzzeitig auch ein Vierradantrieb verwirklicht werden. Darüber hinaus sind die Massen beim erfindungsgemäßen Fahrzeug gleichmäßig auf Vorderachse und Hinterachse verteilt, was ein besonderes ausgewogenes Fahrverhalten in Extremsituationen mit sich bringt. Die Erfindung hat außerdem den Vorteil, dass bei Erschöpfung einer Batterie stets eine zweite Batterie für die Weiterfahrt zur Verfügung steht. Selbst wenn die zweite Batterie nur teilweise geladen ist, kann das erfindungsgemäße Fahrzeug eine längere Strecke zurücklegen als bekannte Fahrzeuge mit Elektroantrieb und vergleichbarer Batteriekapazität.Finally, a vehicle with two drives on the front axle and on the rear axle is more versatile than a vehicle with a drive on a vehicle axle. In normal operation, although only the drive is provided via one of the two vehicle axles, however, if necessary, a four-wheel drive can also be realized for a short time. In addition, the masses in the vehicle according to the invention are evenly distributed on the front axle and rear axle, which brings a special balanced handling in extreme situations with it. The invention also has the advantage that when a battery is exhausted, a second battery is always available for further travel. Even if the second battery is only partially charged, the vehicle according to the invention can travel a longer distance than known vehicles with electric drive and comparable battery capacity.

Durch die Maßnahme, dass die Elektromotoren mit den Fahrzeugrädern der jeweiligen Fahrzeugachse über jeweils eine schaltbare Motorkupplung, ein Differentialgetriebe und zwei Antriebswellen mechanisch verbunden sind, erhält man einen optimalen Antriebsstrang zum Antrieb zweier Fahrzeugräder einer Fahrzeugachse, bei dem der Elektromotor über die schaltbare Motorkupplung nur dann zugeschaltet ist, wenn er die jeweilige Fahrzeugachse antreibt. Soll die Fahrzeugachse nicht angetrieben werden, so wird der Elektromotor über die schaltbare Motorkupplung vom Differentialgetriebe getrennt und läuft nicht mit, wodurch die Reibungsverluste der passiven Fahrzeugachse vermindert werden. Dies wiederum führt zu einer Erhöhung der Ausbeute an rückgewonnener elektrischer Energie und somit zur Verbesserung des Gesamtwirkungsgrades des Fahrzeugs.By the measure that the electric motors with the vehicle wheels of the respective vehicle axle via a switchable each Motor coupling, a differential gear and two drive shafts are mechanically connected, one obtains an optimal drive train for driving two vehicle wheels of a vehicle axle, in which the electric motor is switched on via the switchable engine clutch only when he drives the respective vehicle axle. If the vehicle axle is not to be driven, then the electric motor is disconnected from the differential gear via the shiftable engine clutch and does not run with it, whereby the frictional losses of the passive vehicle axle are reduced. This in turn leads to an increase in the yield of recovered electrical energy and thus to improve the overall efficiency of the vehicle.

Durch die Maßnahme, dass die Generatoren über jeweils eine schaltbare Generatorkupplung mit Übersetzungsgetrieben mechanisch verbunden sind, die ihrerseits über das Differentialgetriebe und die Antriebswellen von den Fahrzeugrädern der jeweiligen Fahrzeugachse angetrieben werden, erhält man eine optimale Anordnung zur Erzeugung elektrischer Energie mittels des jeweiligen Generators über die passive Fahrzeugachse, bei der die schaltbare Motorkupplung ausgekuppelt ist. Bei der aktiven Fahrzeugachse hingegen wird die Motorkupplung eingekuppelt, damit der Elektromotor die jeweilige Fahrzeugachse antreiben kann, während die Generatorkupplung ausgekuppelt wird, um den nicht benötigten Generator nicht unnötig mitlaufen zu lassen. Damit werden die Reibungsverluste an der aktiven Fahrzeugachse verringert und der Gesamtwirkungsgrad des Fahrzeugs verbessert.By the measure that the generators are mechanically connected via a respective switchable generator clutch with transmission gears, which in turn are driven via the differential gear and the drive shafts of the vehicle wheels of the respective vehicle axle, to obtain an optimum arrangement for generating electrical energy by means of the respective generator over the passive vehicle axle, in which the switchable engine clutch is disengaged. In the active vehicle axle, however, the engine clutch is engaged so that the electric motor can drive the respective vehicle axle, while the generator clutch is disengaged so as not to unnecessarily run the unneeded generator. This reduces the friction losses on the active vehicle axle and improves the overall efficiency of the vehicle.

Eine Weiterbildung der Erfindung sieht vor, dass das Steuergerät zur Aktivierung von Vorderachse oder Hinterachse als Antriebsachse auf die schaltbaren Motorkupplungen und Generatorkupplungen einwirkt, dass jeder Fahrzeugachse ein Hochleistungsverteiler für die Schaltung der jeweiligen elektrischen Verbindungen zwischen Batterie und Elektromotor der Antriebsachse und zwischen Batterie und Generator der anderen Fahrzeugachse zugeordnet ist, und dass das Steuergerät auf die Hochleistungsverteiler einwirkt. Diese Maßnahme stellt sicher, dass das Steuergerät von sich aus die für einen der beiden möglichen Antriebsmodi geeigneten Schaltungen von Motorkupplungen, Generatorkupplungen und elektrischen Verbindungen vornehmen kann. Vorzugsweise geschieht dies automatisch in Reaktion auf vorprogrammierbare Betriebsbedingungen. Insbesondere schaltet das Steuergerät den Antrieb einer momentanen Antriebsachse ab, wenn die zugehörige Batterie erschöpft ist, und schaltet die andere Fahrzeugachse, deren zugeordnete Batterie ganz oder teilweise geladen ist, als Antriebsachse.A development of the invention provides that the control unit for activating the front axle or rear axle acts as a drive axle on the switchable engine clutches and generator clutches that each vehicle axle a high power distributor for the circuit of the respective electrical connections between the battery and electric motor of the drive axle and between battery and generator is associated with other vehicle axle, and that the control unit acts on the high-power distributor. This measure ensures that the control unit of its own accord can carry out the circuits of engine clutches, generator clutches and electrical connections which are suitable for one of the two possible drive modes. Preferably, this is done automatically in response to pre-programmable operating conditions. In particular, the controller shuts down the drive of a current drive axle when the associated battery is depleted, and switches the other vehicle axle whose associated battery is fully or partially charged as the drive axle.

In Ausgestaltung der Erfindung ist vorgesehen, dass jeder Fahrzeugachse ein Hochleistungs-Drehstromumrichter zugeordnet ist, der zwischen die als Hochvoltbatterie ausgestaltete Batterie und den Elektromotor der jeweiligen Fahrzeugachse geschaltet ist. Der Hochleistungs-Drehstromumrichter dient zur Anpassung von Spannung und Frequenz des für den Antrieb des Elektromotors benötigten Drehstroms aus dem Gleichstrom der Hochvoltbatterie.In an embodiment of the invention, it is provided that each vehicle axle is associated with a high-power three-phase converter, which is connected between the designed as a high-voltage battery and the electric motor of the respective vehicle axle. The high-performance three-phase converter serves to adapt the voltage and frequency of the three-phase current required to drive the electric motor from the direct current of the high-voltage battery.

Mit Vorteil ist das erfindungsgemäße Fahrzeug mit einem Schnellladegerät ausgerüstet, welches mit den beiden Hochleistungsverteilern der beiden Fahrzeugachsen elektrisch verbunden ist und an eine externe Stromquelle angeschlossen werden kann, um die Fahrzeugbatterien bei Bedarf nachzuladen.Advantageously, the vehicle according to the invention is equipped with a quick charger, which is electrically connected to the two high-power distributors of the two vehicle axles and can be connected to an external power source to recharge the vehicle batteries when needed.

Ein Ausführungsbeispiel der Erfindung ist nachfolgend anhand der Zeichnung näher erläutert. Die einzige Figur zeigt:An embodiment of the invention is explained below with reference to the drawing. The only figure shows:

1: Eine schematische Darstellung eines erfindungsgemäßen Fahrzeugs mit zwei Elektroantrieben. 1 : A schematic representation of a vehicle according to the invention with two electric drives.

In der 1 und der nachfolgenden Beschreibung sind entsprechende Bauteile mit derselben Bezugsziffer bezeichnet, während die jeweils der Vorderachse zugeordneten Bauteile zusätzlich mit dem A und die in der Hinterachse zugeordneten Bauteile mit dem B kombiniert sind.In the 1 and the following description, corresponding components are designated by the same reference numeral, while the respective components associated with the front axle are additionally combined with the A and the components associated with the B in the rear axle.

Beide Fahrzeugachsen besitzen jeweils ein Differentialgetriebe 1A/1B, ein Übersetzungsgetriebe 2A/2B, eine schaltbare Motorkupplung 3A/3B für den Elektroantrieb, welche jeweils einen Elektromotor 4A/4B mit dem zugehörigen Differentialgetriebe 1A/1B verbinden oder trennen kann. Eine Generatorkupplung 5A/5B dient zur Verbindung eines Generators 6A/6B mit dem Übersetzungsgetriebe 2A/2B, welches seinerseits mit dem Differentialgetriebe 1A/1B verbunden ist. Vom Differentialgetriebe 1A/1B gehen zwei Antriebswellen zu den beiden Fahrzeugrädern der Vorderachse.Both vehicle axles each have a differential gear 1A / 1B , a translation gearbox 2A / 2 B , a switchable engine clutch 3A / 3B for the electric drive, which each have an electric motor 4A / 4B with the associated differential gear 1A / 1B connect or disconnect. A generator clutch 5A / 5B is used to connect a generator 6A / 6B with the transmission gear 2A / 2 B , which in turn with the differential gear 1A / 1B connected is. From the differential gear 1A / 1B go two drive shafts to the two vehicle wheels of the front axle.

Eine Hochvoltbatterie 7A/7B ist über elektrische Leitungen mit einem Hochleistungsverteiler 9A/9B verbunden. Auch der Generator 6A/6B ist über eine andere elektrische Leitung mit dem Hochleistungsverteiler 9A/9B verbunden. Ein Hochleistungs-Drehstromumrichter 8A/8B ist einerseits mit dem Elektromotor 4A/4B und andererseits mit dem Hochleistungsverteiler 9A/9B elektrisch verbunden. Ein Schnellladegerät 11 ist mit beiden Hochleistungsverteilern 9A/9B elektrisch verbunden. Ein Steuergerät 10 wirkt über elektrische Steuerleitungen auf beide Hochleistungsverteiler 9A/9B ein. Außerdem schaltet das Steuergerät 10 über nicht gezeigte Leitungen auch die Motorkupplungen 3A/3B und die Generatorkupplungen 5A/5B.A high-voltage battery 7A / 7B is via electrical lines with a high power distributor 9A / 9B connected. Also the generator 6A / 6B is via another electrical line with the high power distributor 9A / 9B connected. A high performance three-phase inverter 8A / 8B is on the one hand with the electric motor 4A / 4B and on the other hand with the high power distributor 9A / 9B electrically connected. A fast charger 11 is with both high performance distributors 9A / 9B electrically connected. A control unit 10 acts via electrical control lines on both high-performance distributors 9A / 9B one. In addition, the controller turns off 10 not shown lines and the engine couplings 3A / 3B and the generator clutches 5A / 5B ,

Bei dem erfindungsgemäßen Fahrzeug wird im Normalfall entweder die Vorderachse oder die Hinterachse angetrieben. Für den Antrieb der Vorderachse wird die Motorkupplung 3A geschaltet, so dass der Elektromotor 4A durch das Übersetzungsgetriebe 2A hindurch mit dem Differentialgetriebe 1A mechanisch verbunden ist, um über die Antriebswellen die Fahrzeugräder der Vorderachse anzutreiben. Dabei wird die Generatorkupplung 5A so geschaltet, dass der Generator 6A vom Übersetzungsgetriebe 2A getrennt ist. Das Steuergerät 10 steuert den Hochleistungsverteiler 9A so, dass elektrische Energie aus der Batterie 7A über den Hochleistungsverteiler 9A zum Hochleistungs-Drehstromumrichter 8A fließt, wo der für den Betrieb des Elektromotors 4A erforderliche Drehstrom mit passender Spannung und Frequenz erzeugt wird. Gleichzeitig werden die Geräte der Hinterachse durch das Steuergerät 10 so gesteuert, dass die Motorkupplung 3B ausgekuppelt ist, da der Elektromotor 4B abgeschaltet ist. Hingegen wird die Generatorkupplung 5B eingekuppelt, so dass die passiv angetriebenen Fahrzeugräder der Hinterachse über ihre Antriebswellen das Differentialgetriebe 1B antreiben, welches seinerseits über das Übersetzungsgetriebe 2B und die Generatorkupplung 5B den Generator 6B antreibt. Das Steuergerät 10 steuert den Hochleistungsverteiler 9B so, dass die vom Generator 6B erzeugte elektrische Energie an die Hochvoltbatterie 7B weitergeleitet und dort gespeichert wird.In the vehicle according to the invention either the front axle or the rear axle is normally driven. To drive the front axle is the engine clutch 3A switched so that the electric motor 4A through the transmission gear 2A through with the differential gear 1A is mechanically connected to drive via the drive shafts, the vehicle wheels of the front axle. In this case, the generator clutch 5A switched so that the generator 6A from the transmission gear 2A is disconnected. The control unit 10 controls the high-performance distributor 9A so that electrical energy from the battery 7A over the high-performance distributor 9A to the high-performance three-phase inverter 8A flows where the for the operation of the electric motor 4A required three-phase current with matching voltage and frequency is generated. At the same time, the devices of the rear axle through the control unit 10 so controlled that the engine clutch 3B disengaged because the electric motor 4B is switched off. On the other hand, the generator clutch 5B engaged, so that the passively driven vehicle wheels of the rear axle via their drive shafts, the differential gear 1B driving, which in turn on the transmission gear 2 B and the generator clutch 5B the generator 6B drives. The control unit 10 controls the high-performance distributor 9B so that from the generator 6B generated electrical energy to the high-voltage battery 7B forwarded and stored there.

Das Steuergerät 10 kann bei Bedarf die Hochleistungsverteiler 9A und 9B sowie die Motorkupplungen 3A/3B und Generatorkupplungen 5A/5B umschalten, so dass statt der Vorderachse die Hinterachse angetrieben wird und stattdessen die Vorderachse passiv mitläuft und über den mit der Vorderachse über die eingekuppelte Generatorkupplung 5A den Generator 6A antreibt, der aus der Bewegungsenergie des Fahrzeugs elektrische Energie zur Aufladung der Batterie 7A zurückgewinnt.The control unit 10 If necessary, the high-performance distributor 9A and 9B as well as the engine couplings 3A / 3B and generator clutches 5A / 5B switch so that instead of the front axle, the rear axle is driven and instead the front axle runs passively with and over the front axle via the coupled generator clutch 5A the generator 6A drives, from the kinetic energy of the vehicle electrical energy to charge the battery 7A recovers.

Der Zustand aller Aggregate beim Antrieb der Hinterachse kann durch die obige Beschreibung dargestellt werden, wenn man bei den kombinierten Bezugszeichen das A durch ein B austauscht und umgekehrt, das heißt der Zustand mit angetriebener Hinterachse und passiv laufender Vorderachse entspricht genau dem zuerst beschriebenen Zustand mit angetriebener Vorderachse und passiv laufender Hinterachse.The state of all aggregates in the drive of the rear axle can be represented by the above description, when exchanging the A for B in the combined reference numerals and vice versa, that is, the state with driven rear axle and passively running front axle exactly corresponds to the first described state with driven Front axle and passive rear axle.

Zur Aufladung der Batterien 7A/7B kann das Fahrzeug auch mittels des Schnellladegerätes 11 an das öffentliche Stromnetz angeschlossen werden.To charge the batteries 7A / 7B the vehicle can also by means of the quick charger 11 be connected to the public grid.

Claims (6)

Fahrzeug mit Elektroantrieb, das einen mit den Fahrzeugrädern seiner Hinterachse mechanisch verbindbaren ersten Elektromotor (4B) zum Antrieb der Hinterachse, eine mit dem ersten Elektromotor (4B) elektrisch verbindbare erste Batterie (7B) als Energiequelle für den ersten Elektromotor (4B), einen mit den Fahrzeugrädern der Hinterachse mechanisch verbindbaren ersten Generator (6B) zu Rückgewinnung elektrischer Energie aus der Bewegungsenergie des Fahrzeugs und zum Speichern der elektrischen Energie in der ersten Batterie (7B) aufweist, dadurch gekennzeichnet, dass ein mit den Fahrzeugrädern der Vorderachse mechanisch verbindbarer zweiter Elektromotor (4A) zum Antrieb der Vorderachse, eine mit dem zweiten Elektromotor (4A) elektrisch verbindbare Batterie (7A) als Energiequelle für den zweiten Elektromotor (4A), ein mit den Fahrzeugräder der Vorderachse mechanisch verbindbarer zweiter Generator (6A) zur Rückgewinnung elektrischer Energie aus der Bewegungsenergie des Fahrzeugs und zum Speichern der elektrischen Energie in der zweiten Batterie (7A) vorgesehen ist und dass ein Steuergerät (10) vorhanden ist, das entweder die Vorderachse oder Hinterachse zum Antrieb des Fahrzeugs mit dem zugehörigen Elektromotor (4B, 4A) mechanisch verbindet, die zugehörige Batterie (7B, 7A) mit dem Elektromotor (4B, 4A) elektrisch verbindet und den Generator (6A, 6B) der jeweils anderen Achse mit dieser mechanisch verbindet und die erzeugte elektrische Energie in der Batterie (7A, 7B) der jeweils anderen Achse speichert.Electric vehicle having a first electric motor mechanically connectable to the vehicle wheels of its rear axle ( 4B ) for driving the rear axle, one with the first electric motor ( 4B ) electrically connectable first battery ( 7B ) as an energy source for the first electric motor ( 4B ), one with the vehicle wheels of the rear axle mechanically connectable first generator ( 6B ) for recovering electrical energy from the kinetic energy of the vehicle and for storing the electrical energy in the first battery ( 7B ), characterized in that with the vehicle wheels of the front axle mechanically connectable second electric motor ( 4A ) for driving the front axle, one with the second electric motor ( 4A ) electrically connectable battery ( 7A ) as an energy source for the second electric motor ( 4A ), a mechanically connected to the vehicle wheels of the front axle second generator ( 6A ) for recovering electrical energy from the kinetic energy of the vehicle and for storing the electrical energy in the second battery ( 7A ) is provided and that a control unit ( 10 ) is present, which either the front axle or rear axle for driving the vehicle with the associated electric motor ( 4B . 4A ) mechanically connects the associated battery ( 7B . 7A ) with the electric motor ( 4B . 4A ) electrically connects and the generator ( 6A . 6B ) mechanically connects the other axle and the generated electrical energy in the battery ( 7A . 7B ) stores the other axis. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Elektromotoren (4A, 4B) mit den Fahrzeugrädern der jeweiligen Fahrzeugachse über jeweils eine schaltbare Motorkupplung (3A, 3B) ein Differentialgetriebe (1A, 1B) und zwei Antriebswellen mechanisch verbunden sind.Vehicle according to claim 1, characterized in that the electric motors ( 4A . 4B ) with the vehicle wheels of the respective vehicle axle via a respective switchable engine clutch ( 3A . 3B ) a differential gear ( 1A . 1B ) and two drive shafts are mechanically connected. Fahrzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Generatoren (6A, 6B) über jeweils eine schaltbare Generatorkupplung (5A, 5B) mit den Übersetzungsgetrieben (2A, 2B) mechanisch verbunden sind, die ihrerseits über das Differentialgetriebe (1A, 1B) und die Antriebswellen von den Fahrzeugrädern der jeweiligen Fahrzeugachse angetrieben werden.Vehicle according to claim 1 or 2, characterized in that the generators ( 6A . 6B ) via a respective switchable generator clutch ( 5A . 5B ) with the translation gears ( 2A . 2 B ) are mechanically connected, in turn via the differential gear ( 1A . 1B ) and the drive shafts are driven by the vehicle wheels of the respective vehicle axle. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Steuergerät (10) zur Aktivierung von Vorderachse oder Hinterachse als Antriebsachse auf die schaltbaren Motorkupplungen (3A, 3B) und Generatorkupplungen (5A, 5B) einwirkt, dass jeder Fahrzeugachse ein Hochleistungsverteiler (9A, 9B) für die Schaltung der jeweiligen elektrischen Verbindungen zwischen Batterie (7A, 7B) und Elektromotor (4A, 4B) der Antriebsachse und zwischen Batterie (4B, 4A) und Generator (6B, 6A) der anderen Fahrzeugsachse zugeordnet ist, und dass das Steuergerät (10) auf die Hochleistungsverteiler (9A, 9B) einwirkt. Vehicle according to one of the preceding claims, characterized in that the control unit ( 10 ) for activation of front axle or rear axle as a drive axle on the switchable engine clutches ( 3A . 3B ) and generator couplings ( 5A . 5B ) acts that each vehicle axle a high-performance distributor ( 9A . 9B ) for the connection of the respective electrical connections between the battery ( 7A . 7B ) and electric motor ( 4A . 4B ) of the drive axle and between battery ( 4B . 4A ) and generator ( 6B . 6A ) is assigned to the other vehicle axle, and that the control unit ( 10 ) on the high-performance distributors ( 9A . 9B ) acts. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder Fahrzeugachse ein Hochleistungs-Drehstromumrichter (8A, 8B) zugeordnet ist, der zwischen die als Hochvoltbatterie ausgestaltete Batterie (7A, 7B) und den Elektromotor (4A, 4B) der jeweiligen Fahrzeugachse geschaltet ist.Vehicle according to one of the preceding claims, characterized in that each vehicle axle is a high-power three-phase converter ( 8A . 8B ), which is connected between the high-voltage battery ( 7A . 7B ) and the electric motor ( 4A . 4B ) is switched the respective vehicle axle. Fahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es mit einem Schnellladegerät (11) ausgerüstet ist, welches mit den beiden Hochleistungsverteilern (9A, 9B) der beiden Fahrzeugachsen elektrisch verbunden ist.Vehicle according to one of the preceding claims, characterized in that it is equipped with a rapid charging device ( 11 ) equipped with the two high-performance distributors ( 9A . 9B ) of the two vehicle axles is electrically connected.
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