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WO2007113175A1 - Drive system for a utility vehicle, in particular for use in mines - Google Patents

Drive system for a utility vehicle, in particular for use in mines Download PDF

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Publication number
WO2007113175A1
WO2007113175A1 PCT/EP2007/052942 EP2007052942W WO2007113175A1 WO 2007113175 A1 WO2007113175 A1 WO 2007113175A1 EP 2007052942 W EP2007052942 W EP 2007052942W WO 2007113175 A1 WO2007113175 A1 WO 2007113175A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive system
drive
generator
motor
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2007/052942
Other languages
German (de)
French (fr)
Inventor
Norbert Becker
Walter Köllner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2007113175A1 publication Critical patent/WO2007113175A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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 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
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/46—Series type
    • 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
    • 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 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
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • 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
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • 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
    • B60W2300/00—Indexing codes relating to the type of vehicle
    • B60W2300/12—Trucks; Load vehicles
    • B60W2300/125—Heavy duty trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • 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
    • Y02T10/60—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

Definitions

  • the invention relates to a drive system designed for a heavy-duty truck with a payload of at least 100 tons with a generator which is coupled to generate an electric power to an internal combustion engine and / or coupled, with at least one electric drive motor for supplying the electrical Energy is indirectly and / or directly connected to the generator and with at least one transmission, wherein the at least one drive motor via the at least one transmission with one or more drive wheels of the utility vehicle is connected and / or connectable.
  • the invention further relates to a commercial vehicle, in particular for mine use.
  • So-called diesel-electric drive systems convert the mechanical energy generated by diesel engines with the help of Ge ⁇ generators into electrical energy and transmit them as drive energy to the drive motors of mobile.
  • the frequent ⁇ quently applications for diesel-electric Antriebssys ⁇ systems are locomotives and ships.
  • diesel-electric drive systems are common.
  • Reasons for the use of diesel-electric drive systems instead of the classic drive systems with internal combustion engines are mainly that the internal combustion engines, such as diesel engines, operated only in a narrow speed range with optimum efficiency and in particular can not be approached under load.
  • These fundamental disadvantages of internal combustion engines are generally compensated by the use of gearboxes and mechanical couplings, which, however - especially under harsh operating conditions - leads to increased operating costs, for example due to the wear of the clutch.
  • Out of these and The diesel-electric drive systems have also found their application in commercial vehicles because they offer a simple and trouble-free design and the possibility of electronically controlled power transmission.
  • Siemens Energy & Automation, Inc. 3333 Old Milton Parkway, Alpharetta, GA 30005, USA offers a diesel-electric propulsion system under the product name "SIMINE CIS TR", which is optimized for use in mining vehicles.
  • the propulsion system includes a generator for power generation that is powered by a diesel engine.
  • the generator supplies two inverters with electrical power, which transforms this electrical current and provides two drive motors.
  • the drive motors are connected via a gear with a fixed reduction ratio with the drive ⁇ wheels and drive them.
  • This dieselelekt ⁇ innovative drive system forms the closest prior art.
  • EP 0 527 145 B1, DE 101 52 488 A1 and EP 0 878 339 B1 relate to city buses or the like with diesel-electric drives which are designed for use in traffic and no drives for heavy-duty vehicles.
  • the invention has the object of developing a drive system for heavy trucks so that they are more flexible adaptable to working conditions.
  • the drive system is designed to drive a heavy goods vehicle with a payload of at least 100 tonnes, preferably, preferably in a payload area of 100 tons to about 400 tons, the on ⁇ operating system and all connected in the operating components is formed portable and in particular from the Transported commercial vehicle.
  • the drive system includes a generator that is mechanically coupled to an internal combustion engine.
  • the generator is for generating
  • the generator is designed to generate alternating current and / or three-phase current, wherein this embodiment is particularly easy to use together with three-phase asynchronous motors as drive motors.
  • the drive system is designed so that the genes of the ⁇ rator generated electric energy to a driving motor elekt ⁇ step is conducted at least, the at least one drive motor preferably constructed as a rotary current motor (AC motor). In less preferred embodiments, a DC motor (DC motor) is used, but usually leads to low energy efficiency of the drive system.
  • the output of the at least one drive motor is connected via min ⁇ least one gear, in particular a mechanical transmission connected with one or more drive wheels of the utility vehicle and / or connectable.
  • the drive system can thus be classified as fuel-electric drive system is ⁇ .
  • At least one gear as variable speed is formed in particular with a single adjustable gear ratio, wherein the Ge ⁇ gear is operated with two different gear ratios.
  • the invention is based on the consideration that fuel-electric drive systems are in principle operable without adjusting, since the Elekt ⁇ romotoren used together with the usual fixed gears, so transmissions with fixed gear ratio or reduction over a wide range in terms of torque and the Output speed controllable drive represent. Disadvantages arise but the fact that the known fuel-electric actuators are adjustable usually either a high starting torque or to a high maximum speed a ⁇ . With the use of an adjusting mechanism according to the invention, this voltage field is equalized, so that the improved fuel-electric drive system is often even more economical than the already known from the prior art drive ⁇ systems by the improved adaptability to the boundary conditions in the operation.
  • the drive system of the internal combustion engine is coupled to the transmission of mechanical energy to the generator in such a way that the Ge ⁇ generator from the mechanical energy generates the electrical energy.
  • the internal combustion engine is preferably designed as a diesel engine and in particular part of the drive system.
  • the drive system is only prepared for coupling the internal combustion engine or diesel engine.
  • This embodiment allows the user to couple any combustion engine to the drive system. It is advantageous if the drive system a power ⁇ store, in particular storage capacitor has, which is suitable overall, zu Granden the energy generated by the generator intermediate. In this way, for example, during peak loads during operation, additional energy can be supplied from the energy store for the drive.
  • the capacity of the energy storage is preferably so high that the energy storage over a short period of a few seconds the mindes ⁇ least an electric motor can supply with electrical energy.
  • the at least one drive motor is designed as an AC motor
  • this embodiment preferably ⁇ has a three-phase alternator with downstream rectifier as a generator and a capacitor as energy storage, generator and energy storage are electrically connected in parallel and the electrical energy via an inverter for each drive motor the at least one drive motor is supplied.
  • each driving wheel drive motor to a ⁇ and is associated with a transmission.
  • the term driving wheel includes the possibility the case of a multiple in particular ⁇ sondere double wheel at one end of a drive shaft. Because ⁇ each drive wheel is assigned a consisting of a drive motor and a transmission drive module, where ⁇ in the drive modules of the various drive wheels are mechanically decoupled from each other, eliminating among other things, the neces ⁇ ability of a connecting differential gear.
  • the Syn ⁇ nization of the drive wheels can be done in a straightforward manner by driving the drive modules.
  • the drive system is designed to decelerate the drive wheels, it is preferably also such that the maximum loadable deceleration force is at least 50%, preferably at least 100%, in particular at least 150%, of the maximum usable driving force.
  • the adjusting mechanism is designed to be adjustable in operation with respect to the lower and / or transmission ratio.
  • the adjusting mechanism is either stepless or ge ⁇ stages realized adjustable.
  • the adjustment so the STEU ⁇ tion of the variable, takes place automatically in a possible alternative, in particular such that Radioda ⁇ th the drive system or the commercial vehicle read, processed and based on this operating data, the control of the variable speed is initiated.
  • the user operates an operating element, which is preferably all drive units of the drive system, in particular at the same time controls.
  • the user can carry out the adjustment of the adjusting gear or gears on the basis of empirical knowledge.
  • the adjusting mechanism is designed as a manual transmission, that can be changed between different sub and / or gear ratios.
  • a possible reduction ratio is for example about 35: 1.
  • a particularly economical design of the drive system is given when the transmission and / or the Verstellge ⁇ gear is switchable only between two switching stages.
  • a first switching stage for generating a high Anfahrmo ⁇ ment eg for starting the commercial vehicle on a soft surface, trained and a second switching stage is provided to achieve a maximum driving speed.
  • the first switching stage in this case has a larger transmission ⁇ reduction on the second switching stage.
  • the object underlying the invention is also achieved by a commercial vehicle having the features of claim 8.
  • the commercial vehicle is designed in particular for use in mines, ie for use in mining, in particular overground and / or underground mining.
  • the Nutz ⁇ vehicle has charging devices for overburden or conveyed.
  • the commercial vehicle preferably has two drive modules.
  • the advantages achieved with the invention consist in particular in that, to design a drive system such that the required engine torque (start-up, shut-down, and constant ⁇ moment), which is introduced into the drive wheels, to the respective driving situation is adapted so as to the host ⁇ -effectiveness to improve the drive system.
  • start-up, shut-down, and constant ⁇ moment which is introduced into the drive wheels, to the respective driving situation is adapted so as to the host ⁇ -effectiveness to improve the drive system.
  • the drive system and / or the commercial vehicle of the transmission can also be tuned so that at lower load of the commercial vehicle, the required power of the drive train is reduced and / or that at a larger load of the commercial vehicle gleichblei ⁇ bende maximum speed is reached.
  • 1 shows a schematic representation of awhosbei ⁇ game of the drive system according to the invention.
  • 1 shows a drive system 1 for a commercial vehicle, wherein the drive system 1 is mechanically coupled to a diesel engine 2 via a transmission member 3.
  • the Nutz ⁇ vehicle is, for example, a truck and / or a transport vehicle for mining.
  • Both drive system 1 as well as diesel engine 2 and transmission member 3 are arranged in the not-shown commercial vehicle and / or integrated and supplied from the commercial vehicle mitge ⁇ .
  • the drive system 1 has a generator 4, which is mechanically driven by the diesel engine 2 via the transmission member 3 ⁇ .
  • the generator 4 generates alternating current, which is converted into direct current in a rectifier, not shown, so that a DC voltage, for example with 2400 V, is present at the output of the generator 4.
  • the generator 4 supplies two inverters 5 a, b, which are connected in parallel to the generator 4, with the generated electrical energy.
  • Each inverter 5 a and 5 b converts the
  • the inverter 5 a, b for example, GTO or IGBT devices which b is an electronic power control of the motors 6a, allow on the frequency of the converted alternating current, in particular to accurate control of torque and VELOCITY ⁇ ness of the motors 6a, to ensure b.
  • the motors 6a, b are each coupled to an adjusting 7 a and 7 b, so that the rotation of the motors 6 a and 6 b generated via the adjusting 7 a and 7 b on not shown drive wheels of the commercial vehicle over ⁇ wear becomes.
  • Inverter 5 a, 6 a motor and adjusting 7 a together form a drive module for a drive wheel.
  • inverter 6 b, motor 6 b and adjusting mechanism 7 b form a second drive module for a further drive wheel.
  • the adjusting 7 a and 7 b are each formed as Weg ⁇ gear with two switching stages, which are controlled via a STEU ⁇ tion 8.
  • the controller 8 is operated by the driver of the utility vehicle or controlled automatically, in particular based on dynamic operating data.
  • both adjusting 7 a and 7 b are always connected at the same time by the controller 8.
  • the drive system 1 further comprises a storage capacitor 9, which is designed to store the electrical energy generated by the generator 4 and is connected in parallel to the Ge ⁇ generator 4 and to the inverters 5 a and 5 b. Furthermore, a brake chopper 10 is integrated in the drive system 1, which is also connected in parallel with the generator 4 and the inverters 5 a, b.
  • the brake chopper 10 serves to electrical energy which is generated at an active Bremsvor b ⁇ passage through the motors 6 a and to dissipate in a resistor grid. 11 In the resistance grid 11, this electrical braking energy is converted into heat.
  • a typical drive system 1 generates at the motor output of the motors 6 a and b each about 2,000 to 4,000 hp.
  • a driven by the drive system 1 commercial vehicle has in ⁇ example, a drive power (measured at the drive wheels) of about 3500 to 5000 hp and a deceleration or braking power of about 4,500 to 6,000 hp.
  • the Maximalge ⁇ speed is, for example mph at 40th

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention proposes a drive system (1) designed for a heavy freight vehicle with a load capacity of at least 100 tonnes, having a generator (4) which is and/or can be coupled to an internal combustion engine (2) in order to generate electrical energy, having at least one electric drive motor (6a, b) which is connected to the generator (4) in order to be supplied with the generated electrical energy, and having at least one gear mechanism (7a, b) wherein the at least one drive motor (6a, b) is and/or can be connected to one or more drive wheels of the utility vehicle via the at least one gear mechanism (7a, b) and wherein the at least one gear mechanism is in the form of an adjustment mechanism (7a, b).

Description

Beschreibungdescription

Antriebssystem für ein Nutzfahrzeug, insbesondere für den MineneinsatzDrive system for a utility vehicle, in particular for mine use

Die Erfindung bezieht sich auf ein Antriebssystem ausgebildet für einen Schwerlastkraftwagen mit einer Nutzlast von mindestens 100 Tonnen mit einem Generator, der zur Erzeugung von elektrischer Energie an einen Verbrennungsmotor gekoppelt und/oder koppelbar ist, mit mindestens einem elektrischen Antriebsmotor, der zur Versorgung mit der elektrischen Energie mittelbar und/oder unmittelbar mit dem Generator verschaltet ist und mit mindestens einem Getriebe, wobei der mindestens eine Antriebsmotor über das mindestens eine Getriebe mit ei- nem oder mehreren Antriebsrädern des Nutzfahrzeugs verbunden und/oder verbindbar ist. Die Erfindung bezieht sich weiterhin auf ein Nutzfahrzeug, insbesondere für den Mineneinsatz.The invention relates to a drive system designed for a heavy-duty truck with a payload of at least 100 tons with a generator which is coupled to generate an electric power to an internal combustion engine and / or coupled, with at least one electric drive motor for supplying the electrical Energy is indirectly and / or directly connected to the generator and with at least one transmission, wherein the at least one drive motor via the at least one transmission with one or more drive wheels of the utility vehicle is connected and / or connectable. The invention further relates to a commercial vehicle, in particular for mine use.

Sogenannte dieselelektrische Antriebssysteme wandeln die von Dieselmotoren erzeugte mechanische Energie mit Hilfe von Ge¬ neratoren in elektrische Energie um und übertragen diese als Antriebsenergie auf die Antriebsmotoren von Mobilen. Die häu¬ figsten Anwendungsgebiete für dieselelektrische Antriebssys¬ teme sind Lokomotiven und Schiffe.So-called diesel-electric drive systems convert the mechanical energy generated by diesel engines with the help of Ge ¬ generators into electrical energy and transmit them as drive energy to the drive motors of mobile. The frequent ¬ quently applications for diesel-electric Antriebssys ¬ systems are locomotives and ships.

Aber auch bei Nutzfahrzeugen, wie z.B. Lastkraftwagen, ist die Verwendung von dieselelektrischen Antriebssystemen üblich. Gründe für den Einsatz der dieselelektrischen Antriebssysteme statt den klassischen Antriebssystemen mit Verbren- nungsmotoren liegen vor allem darin, dass die Verbrennungsmotoren, z.B. die Dieselmotoren, nur in einem eng begrenzten Drehzahlbereich mit optimalem Wirkungsgrad betrieben und insbesondere nicht unter Last angefahren werden können. Diese grundsätzliche Nachteile der Verbrennungsmotoren werden im allgemeinen durch den Einsatz von Getrieben und mechanischen Kupplungen kompensiert, was allerdings - insbesondere unter rauen Betriebsbedingungen - zu erhöhten Betriebskosten z.B. aufgrund des Verschleißes der Kupplung führt. Aus diesen und weiteren Überlegungen heraus haben die dieselelektrischen Antriebssysteme ihr Einsatzgebiet auch bei den Nutzfahrzeugen gefunden, da diese eine einfache und störunanfällige Bauweise und die Möglichkeit einer elektronisch gesteuerten Kraftüber- tragung bieten.But even with commercial vehicles, such as trucks, the use of diesel-electric drive systems is common. Reasons for the use of diesel-electric drive systems instead of the classic drive systems with internal combustion engines are mainly that the internal combustion engines, such as diesel engines, operated only in a narrow speed range with optimum efficiency and in particular can not be approached under load. These fundamental disadvantages of internal combustion engines are generally compensated by the use of gearboxes and mechanical couplings, which, however - especially under harsh operating conditions - leads to increased operating costs, for example due to the wear of the clutch. Out of these and The diesel-electric drive systems have also found their application in commercial vehicles because they offer a simple and trouble-free design and the possibility of electronically controlled power transmission.

Beispielsweise bietet die Siemens Energy & Automation, Inc., 3333 Old Milton Parkway, Alpharetta, GA 30005, USA unter dem Produktnamen "SIMINE CIS TR" ein dieselelektrisches Antriebs- System an, welches für den Einsatz bei Minenfahrzeugen optimiert ist. Das Antriebssystem umfasst einen Generator zur Stromerzeugung, der durch einen Dieselmotor angetrieben wird. Der Generator versorgt zwei Inverter mit elektrischem Strom, die diesen elektrischen Strom umformen und zwei Antriebsmoto- ren zur Verfügung stellen. Die Antriebsmotoren sind über ein Getriebe mit festem Untersetzungsverhältnis mit den Antriebs¬ rädern verschaltet und treiben diese an. Dieses dieselelekt¬ rische Antriebssystem bildet den nächstkommenden Stand der Technik .For example, Siemens Energy & Automation, Inc., 3333 Old Milton Parkway, Alpharetta, GA 30005, USA offers a diesel-electric propulsion system under the product name "SIMINE CIS TR", which is optimized for use in mining vehicles. The propulsion system includes a generator for power generation that is powered by a diesel engine. The generator supplies two inverters with electrical power, which transforms this electrical current and provides two drive motors. The drive motors are connected via a gear with a fixed reduction ratio with the drive ¬ wheels and drive them. This dieselelekt ¬ innovative drive system forms the closest prior art.

Aus der Druckschrift DE 44 25 387 ist aus einem anderen technischen Gebiet für einen landwirtschaftlichen Traktor ein elektromechanisches Getriebe bekannt, wobei ein elektrischer Antriebsmotor ebenfalls über einen dieselmotorangetriebenen Generator mit Strom versorgt wird und das Antriebsmoment von dem Antriebsmotor über ein Endgetriebe an die Antriebsräder abgegeben wird. Der Vorteil des elektromechanischen Getriebes wird darin gesehen, dass auf ein konventionelles Schaltge¬ triebe verzichtet werden kann.From the document DE 44 25 387 an electromechanical transmission is known from another technical field for an agricultural tractor, wherein an electric drive motor is also powered by a diesel engine driven generator with power and the drive torque is delivered from the drive motor via a final gear to the drive wheels. The advantage of the electromechanical transmission is seen in the fact that can be dispensed with a conventional Schaltge ¬ gear.

Die Druckschriften EP 0 527 145 Bl, DE 101 52 488 Al und EP 0 878 339 Bl betreffen jeweils Stadtbusse oder dergleichen mit dieselelektrischen Antrieben, die für den Einsatz im Straßenverkehr ausgelegt sind und keine Antriebe für Schwerlast- kraftwagen. Der Erfindung liegt die Aufgabe zugrunde, ein Antriebssystem für Schwerlastkraftwagen derart weiterzubilden, dass diese flexibler an Arbeitsbedingungen anpassbar sind.The documents EP 0 527 145 B1, DE 101 52 488 A1 and EP 0 878 339 B1 relate to city buses or the like with diesel-electric drives which are designed for use in traffic and no drives for heavy-duty vehicles. The invention has the object of developing a drive system for heavy trucks so that they are more flexible adaptable to working conditions.

Diese Aufgabe wird erfindungsgemäß durch ein Antriebssystem für ein Nutzfahrzeug mit den Merkmalen des Anspruchs 1 sowie durch ein Nutzfahrzeug mit den Merkmalen des Anspruchs 8 ge¬ löst. Vorteilhafte und/oder bevorzugte Ausführungsformen der Erfindungen ergeben sich aus den abhängigen Ansprüchen und/oder der Beschreibung.This object is achieved by a drive system for a commercial vehicle with the features of claim 1 and by a commercial vehicle with the features of claim 8 ge ¬ triggers. Advantageous and / or preferred embodiments of the invention will become apparent from the dependent claims and / or the description.

Das erfindungsgemäße Antriebssystem ist ausgebildet für den Antrieb eines Schwerlastkraftwagens mit einer Nutzlast von mindestens 100 Tonnen, vorzugsweise in einem Nutzlastbereich von 100 Tonnen bis ca. 400 Tonnen, bevorzugt ist das An¬ triebssystem und alle im Betrieb angekoppelten Komponenten transportabel ausgebildet und werden insbesondere von dem Nutzfahrzeug transportiert. Das Antriebssystem umfasst einen Generator, der mechanisch an einen Verbrennungsmotor gekop- pelt ist. Bevorzugt ist der Generator zur Erzeugung vonThe drive system according to the invention is designed to drive a heavy goods vehicle with a payload of at least 100 tonnes, preferably, preferably in a payload area of 100 tons to about 400 tons, the on ¬ operating system and all connected in the operating components is formed portable and in particular from the Transported commercial vehicle. The drive system includes a generator that is mechanically coupled to an internal combustion engine. Preferably, the generator is for generating

Gleichstrom ausgebildet, also insbesondere als Kombination von Wechselstromgenerator und Gleichrichter, mit dem Vorteil, dass der Gleichstrom besonders einfach in einem Speicherkondensator zwischengespeichert werden kann. Bei alternativen Ausführungsformen ist der Generator zur Erzeugung von Wechselstrom und/oder Drehstrom ausgebildet, wobei diese Ausführungsform beispielsweise besonders einfach zusammen mit Dreh- strom-Asynchron-Motoren als Antriebsmotoren einsetzbar ist.DC formed, so in particular as a combination of alternator and rectifier, with the advantage that the DC can be cached particularly easily in a storage capacitor. In alternative embodiments, the generator is designed to generate alternating current and / or three-phase current, wherein this embodiment is particularly easy to use together with three-phase asynchronous motors as drive motors.

Das Antriebssystem ist so ausgebildet, dass die von dem Gene¬ rator erzeugte elektrisch Energie an mindestens einen elekt¬ rischen Antriebsmotor geleitet wird, wobei der mindestens eine Antriebsmotor vorzugsweise als Drehstrom-Motor (AC-Mo- tor) ausgebildet. Bei weniger bevorzugten Ausführungsformen wird ein Gleichstrom-Motor (DC-Motor) eingesetzt, der jedoch meist zu einer geringen Energieeffizienz des Antriebssystems führt . Der Abtrieb des mindestens einen Antriebsmotors ist über min¬ destens ein Getriebe, insbesondere ein mechanisches Getriebe, mit einem oder mehreren Antriebsrädern des Nutzfahrzeugs verbunden und/oder verbindbar. Insbesondere kann das Antriebs- System somit als brennstoffelektrisches Antriebssystem einge¬ ordnet werden.The drive system is designed so that the genes of the ¬ rator generated electric energy to a driving motor elekt ¬ step is conducted at least, the at least one drive motor preferably constructed as a rotary current motor (AC motor). In less preferred embodiments, a DC motor (DC motor) is used, but usually leads to low energy efficiency of the drive system. The output of the at least one drive motor is connected via min ¬ least one gear, in particular a mechanical transmission connected with one or more drive wheels of the utility vehicle and / or connectable. In particular, the drive system can thus be classified as fuel-electric drive system is ¬.

Erfindungsgemäß ist nun vorgesehen, dass das mindestens eine Getriebe als Verstellgetriebe, insbesondere mit einem ein- stellbaren Getriebeverhältnis ausgebildet ist, wobei das Ge¬ triebe mit zwei verschiedenen Untersetzungen betrieben wird.According to the invention it is now provided that at least one gear as variable speed, is formed in particular with a single adjustable gear ratio, wherein the Ge ¬ gear is operated with two different gear ratios.

Der Erfindung liegt dabei die Überlegung zugrunde, dass brennstoffelektrische Antriebssysteme zwar prinzipiell ohne Verstellgetriebe betreibbar sind, da die eingesetzten Elekt¬ romotoren zusammen mit den sonst üblichen festen Getrieben, also Getrieben mit fest eingestellter Übersetzung oder Untersetzung, einen über weite Bereiche hinsichtlich des Drehmoments und der Ausgangsdrehzahl steuerbaren Antrieb darstel- len. Nachteile ergeben sich aber dadurch, dass die bekannten brennstoffelektrischen Antriebe in der Regel entweder auf ein hohes Anfahrmoment oder auf eine hohe Endgeschwindigkeit ein¬ stellbar sind. Mit dem erfindungsgemäßen Einsatz eines Verstellgetriebes wird dieses Spannungsfeld entzerrt, so dass sich das resultierende brennstoffelektrische Antriebssystem durch die verbesserte Anpassbarkeit an die Randbedingungen im Betrieb insgesamt oftmals sogar wirtschaftlicher darstellt als die bereits aus dem Stand der Technik bekannten Antriebs¬ systeme .The invention is based on the consideration that fuel-electric drive systems are in principle operable without adjusting, since the Elekt ¬ romotoren used together with the usual fixed gears, so transmissions with fixed gear ratio or reduction over a wide range in terms of torque and the Output speed controllable drive represent. Disadvantages arise but the fact that the known fuel-electric actuators are adjustable usually either a high starting torque or to a high maximum speed a ¬. With the use of an adjusting mechanism according to the invention, this voltage field is equalized, so that the improved fuel-electric drive system is often even more economical than the already known from the prior art drive ¬ systems by the improved adaptability to the boundary conditions in the operation.

Bei einer zweckmäßigen Ausgestaltung des Antriebssystems ist der Verbrennungsmotor zur Übertragung von mechanischer Energie an den Generator gekoppelt und zwar derart, dass der Ge¬ nerator aus der mechanischen Energie die elektrische Energie erzeugt. Der Verbrennungsmotor ist bevorzugt als Dieselmotor ausgebildet und insbesondere Bestandteil des Antriebssystems. Alternativ ist das Antriebssystem nur vorbereitet zur Ankopp- lung des Verbrennungsmotors oder Dieselmotors. Die letztge- nannte Ausführungsform erlaubt dem Nutzer, an das Antriebssystem einen beliebigen Verbrennungsmotor anzukoppeln. Es ist vorteilhaft, wenn das Antriebssystem einen Energie¬ speicher, insbesondere Speicherkondensator aufweist, der ge- eignet ist, die von dem Generator erzeugte Energie zwischen- zuspeichern. Auf diese Weise kann z.B. bei Lastspitzen im Betrieb zusätzliche Energie von dem Energiespeicher für den Antrieb zugesteuert werden. Die Kapazität des Energiespeichers ist vorzugsweise so hoch bemessen, dass der Energiespeicher über eine kurze Zeitspanne von wenigen Sekunden den mindes¬ tens einen Elektromotor mit elektrischer Energie versorgen kann .In an expedient embodiment of the drive system of the internal combustion engine is coupled to the transmission of mechanical energy to the generator in such a way that the Ge ¬ generator from the mechanical energy generates the electrical energy. The internal combustion engine is preferably designed as a diesel engine and in particular part of the drive system. Alternatively, the drive system is only prepared for coupling the internal combustion engine or diesel engine. The last This embodiment allows the user to couple any combustion engine to the drive system. It is advantageous if the drive system a power ¬ store, in particular storage capacitor has, which is suitable overall, zuspeichern the energy generated by the generator intermediate. In this way, for example, during peak loads during operation, additional energy can be supplied from the energy store for the drive. The capacity of the energy storage is preferably so high that the energy storage over a short period of a few seconds the mindes ¬ least an electric motor can supply with electrical energy.

Besonders bevorzugt ist der mindestens eine Antriebsmotor als AC-Motor ausgebildet, wobei diese Ausführungsform vorzugs¬ weise einen Drehstromgenerator mit nachgeschalteten Gleichrichter als Generator und einen Kondensator als Energiespeicher aufweist, wobei Generator und Energiespeicher elektrisch parallel geschaltet sind und die elektrische Energie über ei- nen Inverter für jeden Antriebsmotor dem mindestens einen Antriebsmotor zugeführt wird.Particularly preferably, the at least one drive motor is designed as an AC motor, this embodiment preferably ¬ has a three-phase alternator with downstream rectifier as a generator and a capacitor as energy storage, generator and energy storage are electrically connected in parallel and the electrical energy via an inverter for each drive motor the at least one drive motor is supplied.

Besonders vorteilhaft ist es, wenn jedem Antriebsrad ein An¬ triebsmotor und ein Getriebe zugeordnet ist. Der Begriff An- triebsrad umfasst dabei auch den Fall eines Mehrfach- insbe¬ sondere Doppelrades an einem Ende einer Antriebswelle. Da¬ durch, dass jedem Antriebsrad ein aus einem Antriebsmotor und einem Getriebe bestehendes Antriebsmodul zugeordnet ist, wo¬ bei die Antriebsmodule der verschiedenen Antriebsräder mecha- nisch voneinander entkoppelt sind, entfällt u.a. die Notwen¬ digkeit eines verbindenden Differentialgetriebes. Die Syn¬ chronisation der Antriebsräder kann in unkomplizierter Weise durch die Ansteuerung der Antriebsmodule erfolgen.It is particularly advantageous when each driving wheel drive motor to a ¬ and is associated with a transmission. The term driving wheel includes the possibility the case of a multiple in particular ¬ sondere double wheel at one end of a drive shaft. Because ¬ each drive wheel is assigned a consisting of a drive motor and a transmission drive module, where ¬ in the drive modules of the various drive wheels are mechanically decoupled from each other, eliminating among other things, the neces ¬ ability of a connecting differential gear. The Syn ¬ nization of the drive wheels can be done in a straightforward manner by driving the drive modules.

Bevorzugt ist zudem, wenn das Antriebssystem zur Verzögerung der Antriebsräder ausgebildet ist, vorzugsweise derart, dass die maximal aufwendbare Verzögerungskraft mindestens 50%, vorzugsweise mindestens 100%, insbesondere mindestens 150%, der maximal aufwendbaren Antriebskraft beträgt.In addition, if the drive system is designed to decelerate the drive wheels, it is preferably also such that the maximum loadable deceleration force is at least 50%, preferably at least 100%, in particular at least 150%, of the maximum usable driving force.

Bei einer bevorzugten Weiterbildung des Antriebssystems ist das Verstellgetriebe im Betrieb hinsichtlich des Unter- und/oder Übersetzungsverhältnisses einstellbar ausgebildet. Hierzu ist das Verstellgetriebe entweder stufenlos oder ge¬ stuft verstellbar realisiert. Die Verstellung, also die Steu¬ erung des Verstellgetriebes, erfolgt bei einer möglichen Al- ternative automatisch, insbesondere derart, dass Betriebsda¬ ten des Antriebssystems oder des Nutzfahrzeuges eingelesen, verarbeitet und auf Basis dieser Betriebsdaten die Steuerung des Verstellgetriebes initiiert wird. Bei einer anderen mög¬ lichen Alternative erfolgt die Verstellung manuell, insbeson- dere derart, dass der Benutzer ein Bedienungselement bedient, welches bevorzugt alle Antriebsmodule des Antriebssystems insbesondere zugleich ansteuert. Bei der letztgenannten Alternative kann der Benutzer auf Basis von Erfahrungswissen die Verstellung des oder der Verstellgetriebe durchführen.In a preferred embodiment of the drive system, the adjusting mechanism is designed to be adjustable in operation with respect to the lower and / or transmission ratio. For this purpose, the adjusting mechanism is either stepless or ge ¬ stages realized adjustable. The adjustment, so the STEU ¬ tion of the variable, takes place automatically in a possible alternative, in particular such that Betriebsda ¬ th the drive system or the commercial vehicle read, processed and based on this operating data, the control of the variable speed is initiated. In another mög ¬ handy alternative for performing the adjustment manually, in particular such that the user operates an operating element, which is preferably all drive units of the drive system, in particular at the same time controls. In the last-mentioned alternative, the user can carry out the adjustment of the adjusting gear or gears on the basis of empirical knowledge.

Besonders bevorzugt ist, wenn das Verstellgetriebe als Schaltgetriebe ausgebildet ist, also zwischen verschiedenen Unter- und/oder Übersetzungsverhältnissen gewechselt werden kann. Ein mögliches Untersetzungsverhältnis liegt beispiels- weise bei ca. 35:1.It is particularly preferred if the adjusting mechanism is designed as a manual transmission, that can be changed between different sub and / or gear ratios. A possible reduction ratio is for example about 35: 1.

Eine besonders wirtschaftliche Ausbildung des Antriebssystems ist gegeben, wenn das Schaltgetriebe und/oder das Verstellge¬ triebe nur zwischen zwei Schaltstufen schaltbar ist. Bei der Auslegung des Betriebes wird bevorzugt berücksichtigt, dass eine erste Schaltstufe zur Erzeugung eines hohen Anfahrmo¬ ments, z.B. für ein Anfahren des Nutzfahrzeuges auf weichem Untergrund, ausgebildet ist und eine zweite Schaltstufe zur Erreichung einer maximalen Fahrgeschwindigkeit vorgesehen ist. Die erste Schaltstufe weist dabei eine größere Getriebe¬ untersetzung auf als die zweite Schaltstufe. Die der Erfindung zugrunde liegende Aufgabe wird auch durch ein Nutzfahrzeug mit den Merkmalen des Anspruchs 8 gelöst. Das Nutzfahrzeug ist insbesondere für den Mineneinsatz, also für den Einsatz im Bergbau, insbesondere Übertage- und/oder Untertagebergbau ausgebildet. Insbesondere verfügt das Nutz¬ fahrzeug über Ladevorrichtungen für Abraum oder Fördergut. Bevorzugt weist das Nutzfahrzeug zwei Antriebsmodule auf.A particularly economical design of the drive system is given when the transmission and / or the Verstellge ¬ gear is switchable only between two switching stages. In the design of the operation is preferably taken into account that a first switching stage for generating a high Anfahrmo ¬ ment, eg for starting the commercial vehicle on a soft surface, trained and a second switching stage is provided to achieve a maximum driving speed. The first switching stage in this case has a larger transmission ¬ reduction on the second switching stage. The object underlying the invention is also achieved by a commercial vehicle having the features of claim 8. The commercial vehicle is designed in particular for use in mines, ie for use in mining, in particular overground and / or underground mining. In particular, the Nutz ¬ vehicle has charging devices for overburden or conveyed. The commercial vehicle preferably has two drive modules.

Die mit der Erfindung erzielten Vorteile bestehen insbeson- dere darin, ein Antriebssystem so auszugestalten, dass das erforderliche Motormoment (Anfahr-, Stillsetz-, und Konstant¬ moment), welches in die Antriebsräder eingeleitet wird, an die jeweilige Fahrsituation anpassbar ist, um somit die Wirt¬ schaftlichkeit des Antriebssystems zu verbessern. Durch den Einsatz eines Schaltgetriebes mit zwei Schaltstufen, ist mit der ersten Schaltstufe das Anfahren mit einem hohen Anfahrmoment möglich. Klingt nach dem Anfahren das benötigte Moment ab, wird die zweite Schaltstufe mit der kleineren Unterset¬ zung aktiviert, so dass eine maximale Fahrgeschwindigkeit erreichbar ist. Somit wird auch bei erschwerten Anfahrbedingungen nach dem Umschalten des Getriebes die maximale Fahrge¬ schwindigkeit erreicht.The advantages achieved with the invention consist in particular in that, to design a drive system such that the required engine torque (start-up, shut-down, and constant ¬ moment), which is introduced into the drive wheels, to the respective driving situation is adapted so as to the host ¬-effectiveness to improve the drive system. By using a gearbox with two switching stages, the start with a high starting torque is possible with the first switching stage. Sounds after starting the torque required from the second shift stage with the smaller subset ¬ wetting is activated, so that a maximum driving speed is reached. Thus, the maximum Fahrge ¬ speed is reached even with difficult starting conditions after switching the transmission.

Alternativ oder ergänzend kann das Antriebssystem und/oder das Nutzfahrzeug von dem Getriebe auch so abgestimmt werden, dass bei geringerer Beladung des Nutzfahrzeugs die benötigte Leistung des Antriebsstrangs reduziert ist und/oder dass bei einer größeren Beladung des Nutzfahrzeuges eine gleichblei¬ bende Maximalgeschwindigkeit erreichbar ist.Alternatively or additionally, the drive system and / or the commercial vehicle of the transmission can also be tuned so that at lower load of the commercial vehicle, the required power of the drive train is reduced and / or that at a larger load of the commercial vehicle gleichblei ¬ bende maximum speed is reached.

Weitere Merkmale, Vorteile und Wirkungen der Erfindung erge¬ ben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels. Dabei zeigt:Further features, advantages and effects of the invention erge ¬ ben from the following description of a preferred embodiment. Showing:

FIG 1 eine schematische Darstellung eines Ausführungsbei¬ spiels des erfindungsgemäßen Antriebssystems. Die FIG 1 zeigt ein Antriebssystem 1 für ein Nutzfahrzeug, wobei das Antriebssystem 1 mit einem Dieselmotor 2 über ein Übertragungsglied 3 mechanisch gekoppelt ist. Bei dem Nutz¬ fahrzeug handelt es sich beispielsweise um einen Lastkraftwa- gen und/oder ein Transportvehikel für den Bergbau. Sowohl Antriebssystem 1 als auch Dieselmotor 2 und Übertragungsglied 3 sind in dem nicht dargestellten Nutzfahrzeug angeordnet und/oder integriert und werden von dem Nutzfahrzeug mitge¬ führt .1 shows a schematic representation of a Ausführungsbei ¬ game of the drive system according to the invention. 1 shows a drive system 1 for a commercial vehicle, wherein the drive system 1 is mechanically coupled to a diesel engine 2 via a transmission member 3. The Nutz ¬ vehicle is, for example, a truck and / or a transport vehicle for mining. Both drive system 1 as well as diesel engine 2 and transmission member 3 are arranged in the not-shown commercial vehicle and / or integrated and supplied from the commercial vehicle mitge ¬.

Das Antriebssystem 1 weist einen Generator 4 auf, der von dem Dieselmotor 2 über das Übertragungsglied 3 mechanisch ange¬ trieben wird. Der Generator 4 erzeugt Wechselstrom, der in einem nicht dargestellten Gleichrichter in Gleichstrom kon- vertiert wird, so dass am Ausgang des Generators 4 eine Gleichspannung z.B. mit 2.400 V anliegt.The drive system 1 has a generator 4, which is mechanically driven by the diesel engine 2 via the transmission member 3 ¬ . The generator 4 generates alternating current, which is converted into direct current in a rectifier, not shown, so that a DC voltage, for example with 2400 V, is present at the output of the generator 4.

Der Generator 4 versorgt zwei Inverter 5 a, b, die parallel zu dem Generator 4 verschaltet sind, mit der erzeugten elekt- rischen Energie. Jeder Inverter 5 a bzw. 5 b wandelt denThe generator 4 supplies two inverters 5 a, b, which are connected in parallel to the generator 4, with the generated electrical energy. Each inverter 5 a and 5 b converts the

Gleichstrom in Wechselstrom um und versorgt jeweils einen Motor 6 a bzw. 6 b mit dem Wechselstrom. Die Inverter 5 a, b umfassen beispielsweise GTO oder IGBT Bauelemente , die eine elektronische Leistungsregelung der Motoren 6a, b über die Frequenz des gewandelten Wechselstroms ermöglichen, um insbesondere eine genaue Steuerung von Drehmoment und Geschwindig¬ keit der Motoren 6a, b zu gewährleisten.Direct current into alternating current and supplies each of a motor 6 a and 6 b with the alternating current. The inverter 5 a, b, for example, GTO or IGBT devices which b is an electronic power control of the motors 6a, allow on the frequency of the converted alternating current, in particular to accurate control of torque and VELOCITY ¬ ness of the motors 6a, to ensure b.

Die Motoren 6a, b sind jeweils an ein Verstellgetriebe 7 a bzw. 7 b gekoppelt, so dass die von den Motoren 6 a bzw. 6 b erzeugte Drehbewegung über die Verstellgetriebe 7 a bzw. 7 b auf nicht dargestellte Antriebsräder des Nutzfahrzeuges über¬ tragen wird. Inverter 5 a, Motor 6 a und Verstellgetriebe 7 a bilden zusammen ein Antriebsmodul für ein Antriebsrad. Ent- sprechend bilden Inverter 6 b, Motor 6 b und Verstellgetriebe 7 b ein zweites Antriebsmodul für ein weiteres Antriebsrad. Die Verstellgetriebe 7 a bzw. 7 b sind jeweils als Schaltge¬ triebe mit zwei Schaltstufen ausgebildet, die über eine Steu¬ erung 8 angesteuert werden. Die Steuerung 8 wird von dem Fahrer des Nutzfahrzeuges bedient oder automatisch, insbesondere auf Basis von dynamischen Betriebsdaten, kontrolliert. Bevorzugt werden beide Verstellgetriebe 7 a und 7 b stets zugleich durch die Steuerung 8 geschaltet .The motors 6a, b are each coupled to an adjusting 7 a and 7 b, so that the rotation of the motors 6 a and 6 b generated via the adjusting 7 a and 7 b on not shown drive wheels of the commercial vehicle over ¬ wear becomes. Inverter 5 a, 6 a motor and adjusting 7 a together form a drive module for a drive wheel. Correspondingly, inverter 6 b, motor 6 b and adjusting mechanism 7 b form a second drive module for a further drive wheel. The adjusting 7 a and 7 b are each formed as Schaltge ¬ gear with two switching stages, which are controlled via a STEU ¬ tion 8. The controller 8 is operated by the driver of the utility vehicle or controlled automatically, in particular based on dynamic operating data. Preferably, both adjusting 7 a and 7 b are always connected at the same time by the controller 8.

Das Antriebssystem 1 umfasst ferner einen Speicherkondensator 9, der zur Speicherung der von dem Generator 4 erzeugten elektrischen Energie ausgebildet ist und parallel zu dem Ge¬ nerator 4 bzw. zu den Invertern 5 a und 5 b geschaltet ist. Des Weiteren ist ein Brems-Chopper 10 in dem Antriebssystem 1 integriert, der ebenfalls parallel zu dem Generator 4 und den Invertern 5 a, b geschaltet ist. Der Brems-Chopper 10 dient dazu, elektrische Energie, die bei einem aktiven Bremsvor¬ gangs durch die Motoren 6 a bzw. b erzeugt wird, in ein Widerstandsgitter 11 abzuleiten. In dem Widerstandsgitter 11 wird diese elektrische Bremsenergie in Wärme umgewandelt. Ein typisches Antriebssystem 1 erzeugt an dem Motor Ausgang der Motoren 6 a bzw. b jeweils ca. 2.000 bis 4.000 PS. Ein mit dem Antriebssystem 1 angetriebenes Nutzfahrzeug hat bei¬ spielsweise eine Antriebsleistung (gemessen an den Antriebsrädern) von etwa 3500 bis 5000 PS und eine Verzögerungs- oder Bremsleistung von ca. 4.500 bis 6.000 PS. Die Maximalge¬ schwindigkeit liegt beispielsweise bei 40 mph. The drive system 1 further comprises a storage capacitor 9, which is designed to store the electrical energy generated by the generator 4 and is connected in parallel to the Ge ¬ generator 4 and to the inverters 5 a and 5 b. Furthermore, a brake chopper 10 is integrated in the drive system 1, which is also connected in parallel with the generator 4 and the inverters 5 a, b. The brake chopper 10 serves to electrical energy which is generated at an active Bremsvor b ¬ passage through the motors 6 a and to dissipate in a resistor grid. 11 In the resistance grid 11, this electrical braking energy is converted into heat. A typical drive system 1 generates at the motor output of the motors 6 a and b each about 2,000 to 4,000 hp. A driven by the drive system 1 commercial vehicle has in ¬ example, a drive power (measured at the drive wheels) of about 3500 to 5000 hp and a deceleration or braking power of about 4,500 to 6,000 hp. The Maximalge ¬ speed is, for example mph at 40th

Claims

Patentansprüche claims 1. Antriebssystem (1) ausgebildet für einen Schwerlastkraft¬ wagen mit einer Nutzlast von mindestens 100 Tonnen - mit einem Generator (4), der zur Erzeugung von elektrischer Energie an einen Verbrennungsmotor (2) gekoppelt und/oder koppelbar ist,1. drive system (1) designed for a heavy load ¬ carriage with a payload of at least 100 tons - with a generator (4) which is coupled to generate an electric motor to an internal combustion engine (2) and / or coupled, - mit mindestens einem elektrischen Antriebsmotor (6a, b), der zur Versorgung mit der erzeugten elektrischen Energie mit dem Generator (4) verschaltet ist und- With at least one electric drive motor (6a, b), which is connected to the supply of the generated electrical energy with the generator (4) and - mit mindestens einem Getriebe (7a, b), wobei der mindestens eine Antriebsmotor (6a, b) über das mindestens eine Getriebe- With at least one transmission (7a, b), wherein the at least one drive motor (6a, b) via the at least one transmission (7a, b) mit einem oder mehreren Antriebsrädern des Nutzfahrzeugs verbunden und/oder verbindbar ist, dadurch gekennzeichnet, dass mindestens ein Getriebe als(7a, b) connected to one or more drive wheels of the commercial vehicle and / or connectable, characterized in that at least one transmission as Verstellgetriebe (7a, b) in Form eines Schaltgetriebe (7a, b) ausgebildet ist, welches genau zwei Schaltstufen aufweist, wobei die erste Schaltstufe mit großer Untersetzung zur Erzeugung eines hohen Anfahrmoments und/oder die zweite Stufe mit kleiner Untersetzung zur Erreichung einer maximalen Fahrgeschwindigkeit angepasst ist.Adjusting gear (7a, b) in the form of a gearbox (7a, b) is formed, which has exactly two switching stages, wherein the first switching stage with a large reduction for generating a high starting torque and / or the second stage with a small reduction to achieve a maximum driving speed is adjusted. 2. Antriebssystem (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Kopplung (3) von Verbren- nungsmotor (2) und Generator (4) zur Übertragung von mechanischer Energie für die Erzeugung der elektrischen Energie ausgebildet ist.2. Drive system (1) according to claim 1, characterized in that the coupling (3) of internal combustion engine (2) and generator (4) for transmitting mechanical energy for the generation of electrical energy is formed. 3. Antriebssystem (1) nach Anspruch 1 oder 2, gekennzeichnet durch den als Dieselmotor (2) ausgebildeten Verbrennungsmotor .3. Drive system (1) according to claim 1 or 2, characterized by the as a diesel engine (2) formed internal combustion engine. 4. Antriebssystem (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der mindestens eine Elekt- romotor (6a,b) mit dem Generator (4) über einen Speicherkondensator (9) zur Zwischenspeicherung der elektrischen Energie verschaltet ist. 4. Drive system (1) according to one of the preceding claims, characterized in that the at least one electric motor (6a, b) is connected to the generator (4) via a storage capacitor (9) for temporarily storing the electrical energy. 5. Antriebssystem (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der mindestens eine Elekt¬ romotor (6a,b) als AC-Motor ausgebildet ist.5. Drive system (1) according to one of the preceding claims, characterized in that the at least one Elekt ¬ romotor (6a, b) is designed as an AC motor. 6. Antriebssystem (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedem Antriebsrad des Nutzfahrzeuges ein Elektromotor (6a, b) und ein Verstellge¬ triebe (7a, b) zugeordnet ist.6. Drive system (1) according to one of the preceding claims, characterized in that each drive wheel of the commercial vehicle, an electric motor (6a, b) and a Verstellge ¬ gear (7a, b) is assigned. 7. Antriebssystem (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mindestens eine Ver¬ stellgetriebe (7a, b) als ein Getriebe mit im Betrieb automa¬ tisch und/oder manuell einstellbaren Unter- und/oder Übersetzungsverhältnis ausgebildet ist.7. The drive system (1) that the at least one Ver is ¬ actuating gear (7a, b) formed as a gear with a table in operation automatic ¬ and / or manually adjustable lower and / or translation ratio according to any one of the preceding claims, characterized in that. 8. Nutzfahrzeug, gekennzeichnet durch ein Antriebssystem (1) nach einem der vorhergehenden Ansprüche. 8. commercial vehicle, characterized by a drive system (1) according to one of the preceding claims.
PCT/EP2007/052942 2006-03-30 2007-03-27 Drive system for a utility vehicle, in particular for use in mines Ceased WO2007113175A1 (en)

Applications Claiming Priority (2)

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DE102006014856.8 2006-03-30
DE102006014856A DE102006014856A1 (en) 2006-03-30 2006-03-30 Drive system for a utility vehicle, in particular for mine use

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DE102014003375A1 (en) * 2014-03-06 2015-09-10 Liebherr-Mining Equipment Colmar Sas Work machine, in particular dump truck or truck

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EP0693392A1 (en) * 1994-07-19 1996-01-24 Roland Dr.-Ing. Dipl.-Wirth.-Ing. Schmetz Agricultural tractor with electromechanical transmission
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EP0878339A2 (en) 1997-05-16 1998-11-18 Voith Turbo GmbH & Co. KG Method for reducing fuel consumption of a vehicle drive system, and hybrid drive system
EP1167110A2 (en) * 2000-06-27 2002-01-02 Deere & Company Control for vehicle electric drive system
DE10152488A1 (en) 2001-10-24 2002-06-06 Voith Turbo Kg Drive device for vehicle, especially diesel electric drive with converter gearbox unit, has revolution rate/torque transfer, conversion device between drive motor, drive wheels or axle drive

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EP0527145A1 (en) 1990-04-06 1993-02-17 Magnet Motor Gmbh Electric vehicle with individually controlled drive electromotors.
EP0693392A1 (en) * 1994-07-19 1996-01-24 Roland Dr.-Ing. Dipl.-Wirth.-Ing. Schmetz Agricultural tractor with electromechanical transmission
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EP0878339A2 (en) 1997-05-16 1998-11-18 Voith Turbo GmbH & Co. KG Method for reducing fuel consumption of a vehicle drive system, and hybrid drive system
EP1167110A2 (en) * 2000-06-27 2002-01-02 Deere & Company Control for vehicle electric drive system
DE10152488A1 (en) 2001-10-24 2002-06-06 Voith Turbo Kg Drive device for vehicle, especially diesel electric drive with converter gearbox unit, has revolution rate/torque transfer, conversion device between drive motor, drive wheels or axle drive

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