EP1386815A2 - Single wheel drive unit of an electric vehicle - Google Patents
Single wheel drive unit of an electric vehicle Download PDFInfo
- 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
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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
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
However, it is also possible to provide a clutch between the
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
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
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)
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)
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)
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)
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---|---|---|---|---|
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)
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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. |
-
2003
- 2003-10-22 AT AT0072903U patent/AT7478U1/en not_active IP Right Cessation
- 2003-11-03 AT AT03025148T patent/ATE485204T1/en active
- 2003-11-03 EP EP03025148A patent/EP1386815B1/en not_active Expired - Lifetime
- 2003-11-03 DE DE50313199T patent/DE50313199D1/en not_active Expired - Lifetime
-
2004
- 2004-08-27 WO PCT/EP2004/009572 patent/WO2005049399A1/en active Application Filing
Patent Citations (5)
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)
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 |
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