EP1386815A2 - Single wheel drive unit of an electric vehicle - Google Patents

Single wheel drive unit of an electric vehicle Download PDF

Info

Publication number
EP1386815A2
EP1386815A2 EP03025148A EP03025148A EP1386815A2 EP 1386815 A2 EP1386815 A2 EP 1386815A2 EP 03025148 A EP03025148 A EP 03025148A EP 03025148 A EP03025148 A EP 03025148A EP 1386815 A2 EP1386815 A2 EP 1386815A2
Authority
EP
European Patent Office
Prior art keywords
electric motor
drive unit
wheel
wheel drive
cooling
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.)
Granted
Application number
EP03025148A
Other languages
German (de)
French (fr)
Other versions
EP1386815B1 (en
EP1386815A3 (en
Inventor
Richard Dipl.-Ing. Ensbacher
Josef Dipl.-Ing. Haas
Andreas Dr. Dipl.-Ing. Trenner
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 Oesterreich
Original Assignee
Elin EBG Traction GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=30004226&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1386815(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elin EBG Traction GmbH filed Critical Elin EBG Traction GmbH
Publication of EP1386815A2 publication Critical patent/EP1386815A2/en
Publication of EP1386815A3 publication Critical patent/EP1386815A3/en
Application granted granted Critical
Publication of EP1386815B1 publication Critical patent/EP1386815B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/52—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with transmission shafts at an angle to the driving axles

Definitions

  • the present invention relates to an independent wheel drive unit of an electrically driven one Vehicle, in particular a rail vehicle, with an electric motor, the Motor shaft is arranged normal to the wheel axis and which drives a single wheel, between Electric motor and single wheel a gear is arranged.
  • Low-floor trams are characterized by a particularly low car floor level, which makes boarding and alighting much easier.
  • modern trams also have to meet high requirements for accelerating vehicle sets in order to make travel times as short as possible. This results in two requirements for the drive unit of such a vehicle: the highest possible power density with the most compact possible design.
  • the high power densities typically 40kW for a single wheel drive, cause considerable cooling, since the heat generated during operation in the electric motor has to be dissipated, otherwise the motor can overheat and be damaged or even destroyed. For this reason, only water-cooled electric motors or electric motors with forced air cooling using a fan wheel for air circulation or external cooling via an independent cooling unit have been used in the traction area, i.e.
  • the disadvantage of water cooling is the complex motor design and the need for a circulation pump and a heat exchanger for cooling the cooling water.
  • the pump and the heat exchanger in particular contradict the requirement for a compact, low-maintenance, inexpensive drive.
  • the cooling devices may even have to be arranged at a distance from the drive unit, for example in the roof area of a wagon, in which case long supply lines are of course required. All in all, water cooling is certainly a very expensive solution.
  • a fan wheel on the other hand, requires valuable space and also causes considerable noise, especially in the passenger compartment, which is a major problem, especially in urban public transport.
  • cooling requires a considerable amount of design and planning effort, since the air routing must be carefully planned and, under certain circumstances, implemented with special, complex air guidance systems or sheets.
  • Both cooling variants have the problem of the lack of cooling if an external unit, such as a fan, pump, etc., and thus the entire cooling fails and, in extreme cases, the motor is destroyed. This would require extensive maintenance or repair of the drive unit and thus inevitably lead to failure of the vehicle set.
  • a particularly compact drive unit is e.g. can be found in AT 403 789 B, at a vertically arranged electric motor via a gearbox, but without a clutch, directly with the independent wheel axle is connected, whereby a particularly small size is achieved.
  • the object of the invention has now set itself the task of being a very compact, inexpensive Single wheel drive unit high power density with a simple and safe Specify cooling.
  • the electric motor is a fanless, air-cooled electric motor, the cooling of the electric motor taking place via the outer surface of the electric motor. So far, it has been excluded to consider electric motors for traction applications, such as for rail vehicles, which have outputs of up to 40kW without an external cooling system, such as water cooling or air cooling with a ventilation wheel or external cooling. So far, the common opinion has been that typical loads (often rapid acceleration) would overheat at such power levels and on rail vehicles. Experiments by the applicant have surprisingly shown that modern electric motors in this performance class can only be operated with air cooling, without an additional cooling system.
  • the drive becomes particularly compact if a gear wheel is directly connected to one or multi-piece motor shaft is arranged and in addition another gear wheel directly on the single wheel axle is arranged. This can save a clutch, which is a brings considerable space savings.
  • a brake disc can be attached to the motor shaft are arranged, which have an increased air flow over at least part of the surface of the electric motor.
  • a supporting air flow can be created generated, which improves the cooling performance.
  • the subject invention is based on the exemplary, schematic and not restricting Fig. 1 described in more detail.
  • Fig. 1 shows a schematic representation of a single wheel 4 of a rail vehicle, which is driven by an electric motor 2 and rolls on a rail 5.
  • the single wheel is arranged at one end of a single wheel axle 7, which in turn is rotatably mounted in a well-known bearing 10, not described in detail.
  • the electric motor 4 is arranged perpendicular to the wheel axis and drives the single wheel 4 via a gear 3, which can be of any design.
  • the gear 3 is a bevel gear, consisting of a gear pinion 8, which is arranged at one end of the motor shaft 6, and a second gear wheel 9, which is arranged on the single wheel axis 7.
  • Such an arrangement is known for example from AT 403 789 B.
  • the drive can be made particularly compact.
  • the second gear wheel 9 would be arranged on its own gear shaft, which would be connected to the independent wheel axle 7 via the clutch.
  • the electric motor 2 For traction applications, e.g. for trams, the electric motor 2 must also be one have high power density. For a single wheel drive in this area of application typically an electric motor with an output of approximately 40 kW is used. The the heat generated here is essentially only from the surface of the electric motor 2 dissipated, in order to support the cooling on the surface of the electric motor 2 known cooling fins 12 can be provided.
  • the brake disc 11 can now be designed so that through the brake disc 11, which is yes with the motor shaft 6th rotates in comparison to the air flow during a travel movement of the rail vehicle an increased air flow over the surface of the electric motor 2 is generated.
  • the brake disc 11 could be used to generate a suitable air flow e.g. With Recesses or openings and / or elevations may be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Braking Arrangements (AREA)

Abstract

The drive unit (1) has an air-cooled electric motor (2) positioned with its motor axis (6) at right angles to the driven wheel axis (7), with an intermediate bevel gearing (3) between the motor shaft and the wheel axis. The waste heat generated by the electric motor is dissipated by the outer mantle of the electric motor, which can be provided with a number of cooling ribs (12), a brake disc (11) attached to the motor shaft providing an increased air flow over at least part of the mantle surface of the electric motor.

Description

Die vorliegende Erfindung betrifft eine Einzelradantriebseinheit eines elektrisch angetriebenen Fahrzeugs, insbesondere eines Schienenfahrzeugs, mit einem Elektromotor, dessen Motorwelle normal zur Radachse angeordnet ist und der ein Einzelrad antreibt, wobei zwischen Elektromotor und Einzelrad ein Getriebe angeordnet ist.The present invention relates to an independent wheel drive unit of an electrically driven one Vehicle, in particular a rail vehicle, with an electric motor, the Motor shaft is arranged normal to the wheel axis and which drives a single wheel, between Electric motor and single wheel a gear is arranged.

Niederflur-Straßenbahnen zeichnen sich durch ein besonders niedriges Wagenbodenniveau aus, was das Ein- und Aussteigen erheblich erleichtert. Moderne Straßenbahnen müssen aber auch hohe Anforderungen an die Beschleunigung der Fahrzeuggarnituren erfüllen, um möglichst kurze Fahrtzeiten zu ermöglichen. Dadurch ergeben sich zwei Anforderungen an die Antriebseinheit eines solchen Fahrzeugs: möglichst hohe Leistungsdichte bei einer möglichsten kompakten Bauweise. Die hohen Leistungsdichten, typischerweise z.B. 40kW für einen Einzelradantrieb, verursachen dabei einen erheblichen Kühlungsaufwand, da die während des Betriebs im Elektromotor erzeugte Wärme abgeführt werden muss, da der Motor ansonsten überhitzt und beschädigt bzw. sogar zerstört werden kann. Deshalb wurden bisher im Traktionsbereich, also bei Antrieben von Schienenfahrzeugen, ausschließlich wassergekühlte Elektromotoren oder Elektromotoren mit einer Zwangsluftkühlung mittels Lüfterrad zur Luftumwälzung oder Fremdkühlung über eine eigenständige Kühleinheit eingesetzt.
Der Nachteil einer Wasserkühlung liegt im aufwendigen Motordesign und an der Notwendigkeit, einer Umwälzpumpe und eines Wärmetauschers zur Kühlung des Kühlwassers. Besonders die Pumpe und der Wärmetauscher stehen im krassen Widerspruch zur Forderung eines kompakten, wartungsarmen, kostengünstigen Antriebs. Gegebenenfalls müssen die Kühleinrichtungen sogar von der Antriebseinheit entfernt angeordnet werden, z.B. im Dachbereich eines Waggons, wobei dann natürlich lange Zuleitungen erforderlich sind. In Summe ist eine Wasserkühlung sicherlich auch eine sehr teure Lösung.
Ein Lüfterrad wiederum, benötigt wertvollen Platz und verursacht darüber hinaus eine erhebliche Geräuschentwicklung, insbesondere im Fahrgastinnenraum, was gerade im städtischen Nahverkehrsbereich ein großes Problem darstellt. Außerdem erfordert eine solche Kühlung einen beachtlichen konstruktiven Aufwand und Planungsaufwand, da die Luftführung genau geplant und unter Umständen mit speziellen aufwendigen Luftleitsysteme bzw. -bleche verwirklicht werden muss.
Beiden Kühlungsvarianten eigen ist das Problem der fehlenden Kühlung, wenn ein externes Aggregat, z.B. Lüfter, Pumpe, etc., und damit die ganze Kühlung ausfällt und im Extremfall der Motor zerstört wird. Das würde eine aufwendige Wartung bzw. Reparatur der Antriebseinheit erfordern und damit zwangsweise einen Ausfall der Fahrzeuggarnitur bewirken. Low-floor trams are characterized by a particularly low car floor level, which makes boarding and alighting much easier. However, modern trams also have to meet high requirements for accelerating vehicle sets in order to make travel times as short as possible. This results in two requirements for the drive unit of such a vehicle: the highest possible power density with the most compact possible design. The high power densities, typically 40kW for a single wheel drive, cause considerable cooling, since the heat generated during operation in the electric motor has to be dissipated, otherwise the motor can overheat and be damaged or even destroyed. For this reason, only water-cooled electric motors or electric motors with forced air cooling using a fan wheel for air circulation or external cooling via an independent cooling unit have been used in the traction area, i.e. in the case of drives for rail vehicles.
The disadvantage of water cooling is the complex motor design and the need for a circulation pump and a heat exchanger for cooling the cooling water. The pump and the heat exchanger in particular contradict the requirement for a compact, low-maintenance, inexpensive drive. The cooling devices may even have to be arranged at a distance from the drive unit, for example in the roof area of a wagon, in which case long supply lines are of course required. All in all, water cooling is certainly a very expensive solution.
A fan wheel, on the other hand, requires valuable space and also causes considerable noise, especially in the passenger compartment, which is a major problem, especially in urban public transport. In addition, such cooling requires a considerable amount of design and planning effort, since the air routing must be carefully planned and, under certain circumstances, implemented with special, complex air guidance systems or sheets.
Both cooling variants have the problem of the lack of cooling if an external unit, such as a fan, pump, etc., and thus the entire cooling fails and, in extreme cases, the motor is destroyed. This would require extensive maintenance or repair of the drive unit and thus inevitably lead to failure of the vehicle set.

Eine besonders kompakte Antriebseinheit ist z.B. der AT 403 789 B zu entnehmen, bei der ein senkrecht angeordneter Elektromotor über ein Getriebe, aber ohne Kupplung, direkt mit der Einzelradachse verbunden ist, wodurch eine besonders kleine Baugröße erzielt wird.A particularly compact drive unit is e.g. can be found in AT 403 789 B, at a vertically arranged electric motor via a gearbox, but without a clutch, directly with the independent wheel axle is connected, whereby a particularly small size is achieved.

Die gegenständliche Erfindung hat sich nun die Aufgabe gestellt, eine sehr kompakte, kostengünstige Einzelrad-Antriebseinheit hoher Leistungsdichte mit einer einfachen und sicheren Kühlung anzugeben.The object of the invention has now set itself the task of being a very compact, inexpensive Single wheel drive unit high power density with a simple and safe Specify cooling.

Diese Aufgabe wird durch Erfindung gelöst, indem der Elektromotor ein lüfterloser luftgekühlter Elektromotor ist, wobei die Kühlung des Elektromotors über die äußere Oberfläche des Elektromotors erfolgt.
Bis jetzt wurde es ausgeschlossen, Elektromotoren für Traktionsanwendungen, wie z.B. für Schienenfahrzeuge, die Leistungen von bis zu 40kW aufweisen ohne externes Kühlsystem, wie eine Wasserkühlung oder eine Luftkühlung mit Lüftungsrad oder eine Fremdkühlung in Betracht zu ziehen. Die gängige Meinung war bisher, dass bei solchen Leistungen und bei Schienefahrzeugen typischen Belastungen (oftmaliges starkes Beschleunigen) der Elektromotor überhitzen würde. Versuche der Anmelderin haben aber überraschenderweise gezeigt, dass moderne Elektromotoren in dieser Leistungsklasse durchaus nur mit Luftkühlung, ohne zusätzliches Kühlsystem betrieben werden können.This object is achieved by the invention in that the electric motor is a fanless, air-cooled electric motor, the cooling of the electric motor taking place via the outer surface of the electric motor.
So far, it has been excluded to consider electric motors for traction applications, such as for rail vehicles, which have outputs of up to 40kW without an external cooling system, such as water cooling or air cooling with a ventilation wheel or external cooling. So far, the common opinion has been that typical loads (often rapid acceleration) would overheat at such power levels and on rail vehicles. Experiments by the applicant have surprisingly shown that modern electric motors in this performance class can only be operated with air cooling, without an additional cooling system.

Der Antrieb wird besonders kompakt, wenn ein Getrieberad direkt an einer ein- oder mehrstückigen Motorwelle angeordnet ist und zusätzlich ein weiteres Getrieberad direkt an der Einzelradachse angeordnet ist. Damit kann eine Kupplung eingespart werden, was eine erhebliche Platzersparnis mit sich bringt.The drive becomes particularly compact if a gear wheel is directly connected to one or multi-piece motor shaft is arranged and in addition another gear wheel directly on the single wheel axle is arranged. This can save a clutch, which is a brings considerable space savings.

Um die Kühlwirkung zu verbessern, sind an der Oberfläche des Elektromotors vorteilhafter Weise eine Anzahl von Kühlrippen vorgesehen. Damit lässt sich die Kühloberfläche und folglich auch die Kühlwirkung vergrößern.To improve the cooling effect, are more advantageous on the surface of the electric motor A number of cooling fins are provided. This allows the cooling surface and consequently also increase the cooling effect.

Um die Kühlwirkung noch weiter zu erhöhen, kann an der Motorwelle eine Bremsscheibe angeordnet werden, die eine erhöhte Luftströmung über zumindest einen Teil der Oberfläche des Elektromotors erzeugt. Damit kann zusätzlich zum Fahrtwind ein unterstützende Luftströmung erzeugt werden, die die Kühlleistung verbessert.To further increase the cooling effect, a brake disc can be attached to the motor shaft are arranged, which have an increased air flow over at least part of the surface of the electric motor. In addition to the headwind, a supporting air flow can be created generated, which improves the cooling performance.

Die gegenständliche Erfindung wird anhand der beispielhaften, schematischen und nicht einschränkenden Fig. 1 näher beschrieben.The subject invention is based on the exemplary, schematic and not restricting Fig. 1 described in more detail.

Fig. 1 zeigt in schematischer Darstellung ein Einzelrad 4 eines Schienenfahrzeugs, das über einen Elektromotor 2 angetrieben wird und auf einer Schiene 5 abrollt. Das Einzelrad ist dabei an einem Ende einer Einzelradachse 7 angeordnet, die wiederum in einer hinlänglich bekannten, nicht näher beschriebenen Lagerung 10 drehbar gelagert ist. Der Elektromotor 4 ist senkrecht, normal zur Radachse angeordnet und treibt das Einzelrad 4 über ein Getriebe 3, das beliebig ausgeführt sein kann. In diesem Beispiel ist das Getriebe 3 ein Kegelradgetriebe, bestehend aus einem Getrieberitzel 8, das an einem Ende der Motorwelle 6 angeordnet ist, und einem zweiten Getrieberad 9, das auf der Einzelradachse 7 angeordnet ist. Eine solche Anordnung ist z.B. aus der AT 403 789 B bekannt. Durch den direkten Antrieb des Einzelrades 4 ohne Kupplung zwischen Elektromotor 2 und Getriebe 3 bzw. Einzelrad 4, kann der Antrieb besonders kompakt ausgeführt werden.
Es ist jedoch auch möglich, zwischen Einzelradachse 7 und dem Getriebe 3 eine Kupplung vorzusehen. In diesem Fall wäre das zweite Getrieberad 9 auf einer eigenen Getriebewelle angeordnet, die über die Kupplung mit der Einzelradachse 7 verbunden wäre.Fig. 1 shows a schematic representation of a single wheel 4 of a rail vehicle, which is driven by an electric motor 2 and rolls on a rail 5. The single wheel is arranged at one end of a single wheel axle 7, which in turn is rotatably mounted in a well-known bearing 10, not described in detail. The electric motor 4 is arranged perpendicular to the wheel axis and drives the single wheel 4 via a gear 3, which can be of any design. In this example, the gear 3 is a bevel gear, consisting of a gear pinion 8, which is arranged at one end of the motor shaft 6, and a second gear wheel 9, which is arranged on the single wheel axis 7. Such an arrangement is known for example from AT 403 789 B. Due to the direct drive of the individual wheel 4 without a coupling between the electric motor 2 and the gear 3 or the individual wheel 4, the drive can be made particularly compact.
However, it is also possible to provide a clutch between the individual wheel axle 7 and the transmission 3. In this case, the second gear wheel 9 would be arranged on its own gear shaft, which would be connected to the independent wheel axle 7 via the clutch.

Für Traktionsanwendungen, z.B. für Straßenbahnen, muss der Elektromotor 2 auch eine hohe Leistungsdichte aufweisen. Für einen Einzelradantrieb in diesem Anwendungsbereich wird typischerweise ein Elektromotor mit einer Leistung von ungefähr 40kW eingesetzt. Die dabei entstehende Wärme wird hier im Wesentlichen nur über die Oberfläche des Elektromotors 2 abgeführt, wobei zur Unterstützung der Kühlung an der Oberfläche des Elektromotors 2 bekannte Kühlrippen 12 vorgesehen sein können.For traction applications, e.g. for trams, the electric motor 2 must also be one have high power density. For a single wheel drive in this area of application typically an electric motor with an output of approximately 40 kW is used. The the heat generated here is essentially only from the surface of the electric motor 2 dissipated, in order to support the cooling on the surface of the electric motor 2 known cooling fins 12 can be provided.

Am dem Getriebe 3 abgewandten Ende der Motorwelle 6 ist in diesem Beispiel eine Bremsscheibe 11 angeordnet, auf die zum Bremsen in hinlänglich bekannter Weise ein nicht dargestelltes Bremsmittel, wie z.B. Bremsbacken, einwirken können. Die Bremsscheibe 11 kann nun so gestaltet werden, dass durch die Bremsscheibe 11, die sich ja mit der Motorwelle 6 mitdreht, im Vergleich zur Luftströmung während einer Fahrtbewegung des Schienenfahrzeuges eine erhöhte Luftströmung über die Oberfläche des Elektromotors 2 erzeugt wird. Dazu könnte die Bremsscheibe 11 zur Erzeugung einer geeigneten Luftströmung z.B. mit Ausnehmungen bzw. Öffnungen und/oder Erhebungen versehen sein.In this example, there is a brake disc at the end of the motor shaft 6 facing away from the transmission 3 11 arranged on the for braking in a well known manner, not shown Braking agents such as Brake shoes, can act. The brake disc 11 can can now be designed so that through the brake disc 11, which is yes with the motor shaft 6th rotates in comparison to the air flow during a travel movement of the rail vehicle an increased air flow over the surface of the electric motor 2 is generated. For this purpose, the brake disc 11 could be used to generate a suitable air flow e.g. With Recesses or openings and / or elevations may be provided.

Die Verbindung des Einzelradantriebs wie in Fig. 1 dargestellt mit dem Fahrgestell bzw. dem Fahrzeugkasten wird hier nicht näher beschrieben, da es dazu eine Vielzahl von konstruktiven Lösungen gibt, wie z.B. aus der EP 580 566 B1 bekannt.The connection of the independent wheel drive as shown in Fig. 1 with the chassis or Vehicle body is not described in detail here, since there are a variety of design Solutions, such as known from EP 580 566 B1.

Claims (6)

Einzelradantriebseinheit eines elektrisch angetriebenen Fahrzeugs, insbesondere eines Schienenfahrzeugs, mit einem Elektromotor, dessen Motorwelle im Wesentlichen normal zur Radachse angeordnet ist und der ein Einzelrad antreibt, wobei zwischen Elektromotor und Einzelrad ein Getriebe angeordnet ist, dadurch gekennzeichnet, dass der Elektromotor ein lüfterloser luftgekühlter Elektromotor ist, wobei die Kühlung des Elektromotors über die äußere Oberfläche des Elektromotors erfolgt.Independent wheel drive unit of an electrically driven vehicle, in particular a rail vehicle, with an electric motor, the motor shaft of which is arranged essentially normal to the wheel axis and which drives a single wheel, a gear being arranged between the electric motor and the single wheel, characterized in that the electric motor is a fanless, air-cooled electric motor , wherein the cooling of the electric motor takes place via the outer surface of the electric motor. Einzelradantriebseinheit nach Anspruch 1, dadurch gekennzeichnet, dass ein Getrieberad des Getriebes direkt an einer ein- oder mehrstückigen Motorwelle angeordnet ist.Independent wheel drive unit according to claim 1, characterized in that a gear wheel of the transmission is arranged directly on a single or multi-piece motor shaft. Einzelradantriebseinheit nach Anspruch 2, dadurch gekennzeichnet, dass ein weiteres Getrieberad des Getriebes direkt an der Einzelradachse angeordnet ist.Independent wheel drive unit according to claim 2, characterized in that a further gear wheel of the transmission is arranged directly on the independent wheel axis. Einzelradantriebseinheit nach Anspruch 2, dadurch gekennzeichnet, dass ein weiteres Getrieberad des Getriebes an einer Getriebewelle angeordnet ist und die Getriebewelle mittels einer Kupplung mit der Einzelradachse verbunden ist.Independent wheel drive unit according to claim 2, characterized in that a further gear wheel of the transmission is arranged on a transmission shaft and the transmission shaft is connected to the independent wheel axle by means of a clutch. Einzelradantriebseinheit nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass an der Oberfläche des Elektromotors eine Anzahl von Kühlrippen vorgesehen sind.Independent wheel drive unit according to one of claims 1 to 4, characterized in that a number of cooling fins are provided on the surface of the electric motor. Einzelradantriebseinheit nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass an der Motorwelle eine Bremsscheibe angeordnet ist, die eine erhöhte Luftströmung über zumindest einen Teil der Oberfläche des Elektromotors erzeugt.Independent wheel drive unit according to one of claims 1 to 5, characterized in that a brake disc is arranged on the motor shaft, which generates an increased air flow over at least part of the surface of the electric motor.
EP03025148A 2003-10-22 2003-11-03 Single wheel drive unit of an electric vehicle Expired - Lifetime EP1386815B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0072903U AT7478U1 (en) 2003-10-22 2003-10-22 EINZELRADANTRIEBSEINHEIT
AT72903U 2003-10-22

Publications (3)

Publication Number Publication Date
EP1386815A2 true EP1386815A2 (en) 2004-02-04
EP1386815A3 EP1386815A3 (en) 2007-05-02
EP1386815B1 EP1386815B1 (en) 2010-10-20

Family

ID=30004226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025148A Expired - Lifetime EP1386815B1 (en) 2003-10-22 2003-11-03 Single wheel drive unit of an electric vehicle

Country Status (4)

Country Link
EP (1) EP1386815B1 (en)
AT (2) AT7478U1 (en)
DE (1) DE50313199D1 (en)
WO (1) WO2005049399A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014306A1 (en) 2012-07-19 2014-01-23 Volkswagen Aktiengesellschaft Motor vehicle has ventilation system with drive system-air duct, which is guided in area of electric machine such that rise in temperature in electric machine is counteracted by airstream guided through drive system-air duct
DE102013221665A1 (en) * 2013-10-24 2015-04-30 Zf Friedrichshafen Ag Drive system with trained as a fan clutch
DE102014215201A1 (en) 2014-08-01 2016-02-04 Zf Friedrichshafen Ag Independent wheel drive for a rail vehicle
EP3263418A1 (en) 2016-07-01 2018-01-03 Západoceská Univerzita V Plzni Compact drive unit for traction vehicles
CZ307130B6 (en) * 2008-11-06 2018-01-31 Ĺ KODA TRANSPORTATION a.s. A brake device for a driving unit of a low-floor tram chassis
DE102018210626B3 (en) 2018-06-28 2019-09-19 Ford Global Technologies, Llc axle assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103381839A (en) * 2013-06-28 2013-11-06 长春轨道客车股份有限公司 Driving mechanism with single motor and coaxial two wheels for 100% low-floor light rail rigid wheel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030594A1 (en) * 1980-08-11 1982-02-18 Siemens AG, 1000 Berlin und 8000 München DRIVE UNIT FOR THE DRIVE AXLES OF RAIL VEHICLES
WO1996029224A1 (en) * 1995-03-23 1996-09-26 Elin Antriebstechnik Gmbh Electric vehicle, especially an electrically powered rail vehicle, e.g. a low-platform tramcar
EP0749197A2 (en) * 1995-06-15 1996-12-18 Kabushiki Kaisha Toshiba Outer-rotor type electric rotary machine and electric motor vehicle using the machine
DE19648455A1 (en) * 1995-11-24 1997-10-30 Toshiba Kawasaki Kk Fully closed main electric motor for vehicle
WO1998024675A1 (en) * 1996-12-05 1998-06-11 Siemens Sgp Verkehrstechnik Gmbh Rolling mechanism for rail vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072872A (en) * 1975-08-07 1978-02-07 General Electric Company Ventilating air baffle and deflector for a dynamoelectric machine
DE3618308A1 (en) * 1986-05-30 1987-12-03 Siemens Ag WHEEL GUIDE SWINGARM FOR HORIZONTAL SWIVELABLE RAILWHEELS
ATE132816T1 (en) * 1992-04-22 1996-01-15 Sgp Verkehrstechnik CHASSIS FOR RAIL VEHICLES, ESPECIALLY LOW FLOOR CARS
ES2170619B1 (en) * 1999-11-18 2003-12-16 Talgo Patentes DISSEMINED TRACTION PROVISION APPLIED TO MONOEJE RAILWAY BEARINGS EQUIPPED WITH INDEPENDENT WHEELS.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030594A1 (en) * 1980-08-11 1982-02-18 Siemens AG, 1000 Berlin und 8000 München DRIVE UNIT FOR THE DRIVE AXLES OF RAIL VEHICLES
WO1996029224A1 (en) * 1995-03-23 1996-09-26 Elin Antriebstechnik Gmbh Electric vehicle, especially an electrically powered rail vehicle, e.g. a low-platform tramcar
EP0749197A2 (en) * 1995-06-15 1996-12-18 Kabushiki Kaisha Toshiba Outer-rotor type electric rotary machine and electric motor vehicle using the machine
DE19648455A1 (en) * 1995-11-24 1997-10-30 Toshiba Kawasaki Kk Fully closed main electric motor for vehicle
WO1998024675A1 (en) * 1996-12-05 1998-06-11 Siemens Sgp Verkehrstechnik Gmbh Rolling mechanism for rail vehicle

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307130B6 (en) * 2008-11-06 2018-01-31 Ĺ KODA TRANSPORTATION a.s. A brake device for a driving unit of a low-floor tram chassis
DE102012014306B4 (en) 2012-07-19 2022-08-11 Volkswagen Aktiengesellschaft Motor vehicle with a drive system comprising a permanent-magnet electric machine and method for operating a drive system of a motor vehicle
DE102012014306A1 (en) 2012-07-19 2014-01-23 Volkswagen Aktiengesellschaft Motor vehicle has ventilation system with drive system-air duct, which is guided in area of electric machine such that rise in temperature in electric machine is counteracted by airstream guided through drive system-air duct
DE102013221665A1 (en) * 2013-10-24 2015-04-30 Zf Friedrichshafen Ag Drive system with trained as a fan clutch
DE102014215201A1 (en) 2014-08-01 2016-02-04 Zf Friedrichshafen Ag Independent wheel drive for a rail vehicle
CN109415070A (en) * 2016-07-01 2019-03-01 西波希米亚大学 Compact driving unit for towing vehicle
WO2018002210A1 (en) 2016-07-01 2018-01-04 Zapadoceska Univerzita V Plzni Compact drive unit for traction vehicles
CN109415070B (en) * 2016-07-01 2020-12-08 西波希米亚大学 Compact drive unit for a railway traction vehicle
EP3263418B1 (en) * 2016-07-01 2021-01-13 Západoceská Univerzita V Plzni Compact drive unit for traction vehicles
US11233440B2 (en) 2016-07-01 2022-01-25 Wikov Mgi A.S. Compact drive unit for traction vehicles
EP3263418A1 (en) 2016-07-01 2018-01-03 Západoceská Univerzita V Plzni Compact drive unit for traction vehicles
DE102018210626B3 (en) 2018-06-28 2019-09-19 Ford Global Technologies, Llc axle assembly
US10807462B2 (en) 2018-06-28 2020-10-20 Ford Global Technologies, Llc Axle assembly

Also Published As

Publication number Publication date
EP1386815B1 (en) 2010-10-20
AT7478U1 (en) 2005-04-25
EP1386815A3 (en) 2007-05-02
DE50313199D1 (en) 2010-12-02
ATE485204T1 (en) 2010-11-15
WO2005049399A1 (en) 2005-06-02

Similar Documents

Publication Publication Date Title
DE10122425B4 (en) Electric machine
EP1717090A1 (en) All-wheel-drive motor vehicle
DE29518401U1 (en) Chassis for commercial vehicles
DE112019004312T5 (en) POWER TRANSMISSION DEVICE
EP1386815B1 (en) Single wheel drive unit of an electric vehicle
DE10222812A1 (en) Electric steering drive system for a vehicle with wheel side steering
DE102011114354B3 (en) Underfloor cooling system for a rail vehicle
EP3736154B1 (en) Piste caterpillar
WO2010102692A1 (en) Drivetrain having a hydrodynamic machine disposed on the gearbox output side
DE102011113654A1 (en) Device for cooling electrical traction motor to drive rail vehicle e.g. locomotive, has transformer cooling circuit coupled with motor liquid cooling circuit, which is attached to liquid cooling circuit of vehicle component
DE19709577A1 (en) Single wheel drive for motor vehicles
DE29611867U1 (en) Chassis for a commercial vehicle
AT406569B (en) CHASSIS FOR A RAIL VEHICLE, IN PARTICULAR LOW-FLOOR TRAM
EP0589865B1 (en) Brake assembly for railway vehicles
DE102017213513A1 (en) Oil supply arrangement of a vehicle with an electric machine
DE102021117504A1 (en) Coolant supply system for a driving device of an electrically operated vehicle
DE102021201547A1 (en) Drive train for a motor vehicle
WO2022033943A1 (en) Unenclosed electric traction machine
EP3594042A1 (en) Axle generator unit for a vehicle
DE102004044688A1 (en) Electrical drive system for vehicles comprises electric motor which is cooled by circulation of air, motor being fitted with heat sink
DE102017212744A1 (en) drive arrangement
DE102023108150B3 (en) Fuel cell vehicle and method for operating the same
DE102021213673A1 (en) Propulsion system for an electrically propelled vehicle and vehicle with a propulsion system
DE9302767U1 (en) Retarder assembly for use in multi-purpose vehicles
DE102024000150A1 (en) Gearbox with one housing

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

RIC1 Information provided on ipc code assigned before grant

Ipc: B61C 9/52 20060101AFI20031212BHEP

17P Request for examination filed

Effective date: 20070621

17Q First examination report despatched

Effective date: 20071009

AKX Designation fees paid

Designated state(s): AT DE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE

REF Corresponds to:

Ref document number: 50313199

Country of ref document: DE

Date of ref document: 20101202

Kind code of ref document: P

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: TRAKTIONSSYSTEME AUSTRIA GMBH

Effective date: 20110715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 50313199

Country of ref document: DE

Effective date: 20110715

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

PLAM Termination of opposition procedure: information related to despatch of decision modified

Free format text: ORIGINAL CODE: EPIDOSCOPC1

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

PLAM Termination of opposition procedure: information related to despatch of decision modified

Free format text: ORIGINAL CODE: EPIDOSCOPC1

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 20131226

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50313199

Country of ref document: DE

Representative=s name: DEFFNER, ROLF, DR., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50313199

Country of ref document: DE

Owner name: SIEMENS MOBILITY GMBH, AT

Free format text: FORMER OWNER: ELIN EBG TRACTION GES.M.B.H., WIEN, AT

Ref country code: DE

Ref legal event code: R081

Ref document number: 50313199

Country of ref document: DE

Owner name: SIEMENS MOBILITY AUSTRIA GMBH, AT

Free format text: FORMER OWNER: ELIN EBG TRACTION GES.M.B.H., WIEN, AT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50313199

Country of ref document: DE

Representative=s name: DEFFNER, ROLF, DR., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50313199

Country of ref document: DE

Owner name: SIEMENS MOBILITY AUSTRIA GMBH, AT

Free format text: FORMER OWNER: SIEMENS MOBILITY GMBH, WIEN, AT

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 485204

Country of ref document: AT

Kind code of ref document: T

Owner name: SIEMENS AG OESTERREICH, AT

Effective date: 20200128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20201012

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210119

Year of fee payment: 18

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 485204

Country of ref document: AT

Kind code of ref document: T

Owner name: SIEMENS MOBILITY AUSTRIA GMBH, AT

Effective date: 20210907

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50313199

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 485204

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220601