EP1386815B1 - Unité motrice à roue indépendante pour véhicule électrique - Google Patents

Unité motrice à roue indépendante pour véhicule électrique Download PDF

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Publication number
EP1386815B1
EP1386815B1 EP03025148A EP03025148A EP1386815B1 EP 1386815 B1 EP1386815 B1 EP 1386815B1 EP 03025148 A EP03025148 A EP 03025148A EP 03025148 A EP03025148 A EP 03025148A EP 1386815 B1 EP1386815 B1 EP 1386815B1
Authority
EP
European Patent Office
Prior art keywords
electric motor
single wheel
cooling
gear
drive unit
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.)
Expired - Lifetime
Application number
EP03025148A
Other languages
German (de)
English (en)
Other versions
EP1386815A2 (fr
EP1386815A3 (fr
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
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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(B1) "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/fr
Publication of EP1386815A3 publication Critical patent/EP1386815A3/fr
Application granted granted Critical
Publication of EP1386815B1 publication Critical patent/EP1386815B1/fr
Anticipated expiration legal-status Critical
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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 a Einzelradantriebsappel an electrically driven vehicle, in particular a rail vehicle, with an electric motor whose motor shaft is arranged normal to the wheel axle and which drives a single wheel, wherein between the electric motor and a single gear is arranged.
  • a Einzelradantriebshim with the features defined in the preamble of claim 1 is known from the WO-A-9824675 known.
  • Low-floor trams are characterized by a particularly low floor level, which makes getting in and out a lot easier. Modern trams must also meet high demands on the acceleration of the vehicle trim to allow the shortest possible travel times. This results in two requirements for the drive unit of such a vehicle: the highest possible power density with the most compact possible construction.
  • the high power densities typically eg 40kW for a single wheel drive, thereby causing a considerable cooling effort, since the heat generated during operation in the electric motor must be dissipated, otherwise the engine can be overheated and damaged or even destroyed. Therefore, only water-cooled electric motors or electric motors with a forced air cooling by means of fan for air circulation or external cooling via an independent cooling unit have been used in the traction field, ie in drives of rail vehicles.
  • the disadvantage of water cooling lies in the complex engine design and the need for a circulation pump and a heat exchanger for cooling the cooling water.
  • the pump and the heat exchanger are in stark contrast to the demand for a compact, low-maintenance, cost-effective drive.
  • the cooling devices must even be located away from the drive unit, for example in the roof area of a wagon, in which case of course long supply lines are required.
  • water cooling is certainly a very expensive solution.
  • a fan wheel in turn, requires valuable space and also causes a considerable noise, especially in the passenger compartment, which is a major problem especially in urban transport.
  • such cooling requires considerable design effort and planning effort, since the air duct must be planned exactly and possibly realized with special complex air handling systems or sheets.
  • Both cooling variants own the problem of lack of cooling, if an external unit, eg fan, pump, etc., and thus the whole cooling fails and in extreme cases, the engine is destroyed. This would require a costly maintenance or repair of the drive unit and thus forcibly cause a failure of the vehicle trim.
  • an external unit eg fan, pump, etc.
  • a particularly compact drive unit is for example the AT 403 789 B can be seen in which a vertically arranged electric motor via a gearbox, but without a clutch, is connected directly to the single wheel axle, whereby a particularly small size is achieved.
  • the subject invention has now taken on the task of specifying a very compact, inexpensive single-wheel drive unit high power density with a simple and safe cooling.
  • the drive is particularly compact when a gear is arranged directly on a single or multi-piece motor shaft and in addition a further gear is arranged directly on the single wheel axle.
  • a clutch can be saved, which brings a significant space savings.
  • a number of cooling fins are advantageously provided on the surface of the electric motor.
  • the cooling surface and consequently the cooling effect can be increased.
  • a brake disk can be arranged on the motor shaft, which generates an increased air flow over at least part of the surface of the electric motor.
  • a supporting air flow can be generated, which improves the cooling performance.
  • 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 in a sufficient known, not described in detail bearing 10 is rotatably mounted.
  • the electric motor 4 is perpendicular, arranged normal to the wheel axle and drives the single wheel 4 via a gear 3, which can be designed arbitrarily.
  • the transmission 3 is a bevel gear, consisting of a gear 8, which is arranged at one end of the motor shaft 6, and a second gear 9, which is arranged on the Einzelradachse 7.
  • Such an arrangement is for example from the AT 403 789 B known.
  • the drive can be made very compact.
  • the second gear 9 would be arranged on its own gear shaft, which would be connected via the clutch with the Einzelradachse 7.
  • the electric motor 2 For traction applications, e.g. for trams, the electric motor 2 must also have a high power density. For a single wheel drive in this application, an electric motor with a power of approximately 40kW is typically used. The resulting heat is dissipated here substantially only over the surface of the electric motor 2, wherein 2 known cooling fins 12 may be provided to support the cooling on the surface of the electric motor.
  • a brake disk 11 is arranged in this example, to which a brake means (not shown), such as that shown in FIG. Brake shoes, can act.
  • the brake disk 11 can now be designed so that an increased air flow over the surface of the electric motor 2 is generated by the brake disk 11, which indeed rotates with the motor shaft 6, compared to the air flow during a travel movement of the rail vehicle.
  • the brake disk 11 could be used to generate a suitable air flow, e.g. be provided with recesses or openings and / or surveys.

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  • 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)
  • Braking Arrangements (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Motor Or Generator Cooling System (AREA)

Claims (4)

  1. Unité motrice à roue indépendante d'un véhicule entraîné électriquement, notamment d'un véhicule ferroviaire, comprenant un moteur ( 2 ) électrique dont l'arbre ( 6 ) est sensiblement normal à l'axe de la roue et qui entraîne une roue ( 4 ) indépendante, un engrenage étant interposé entre le moteur ( 2 ) électrique et la roue ( 4 ) indépendante, le moteur ( 2 ) électrique étant un moteur électrique sans ventilateur et à refroidissement par de l'air, le refroidissement du moteur électrique s'effectuant par la surface extérieure du moteur électrique sans refroidissement forcé par de l'air, caractérisé en ce que l'engrenage ( 3 ) est un engrenage ( 3 ) à roue conique, en ce qu'une roue ( 8 ) de l'engrenage ( 3 ) est constituée en pignon ( 8 ) d'engrenage et est disposée à un bout de l'arbre ( 6 ) du moteur et en ce qu'une autre roue ( 9 ) de l'engrenage ( 3 ) est disposée directement sur l'axe ( 5 ) de la roue indépendante.
  2. Unité motrice à roue indépendante suivant la revendication 1, caractérisée en ce qu'une autre roue de l'engrenage ( 3 ) est montée sur un arbre d'engrenage et l'arbre d'engrenage est relié à l'axe de la roue indépendante au moyen d'un accouplement.
  3. Unité motrice à roue indépendante suivant l'une des revendications 1 à 2, caractérisé en ce qu'un certain nombre d'ailettes ( 12 ) de refroidissement sont prévues sur la surface du moteur ( 2 ) électrique.
  4. Unité motrice à roue indépendante suivant l'une des revendications 1 à 3, caractérisée en ce que l'arbre du moteur est constitué en une pièce ou en plusieurs pièces.
EP03025148A 2003-10-22 2003-11-03 Unité motrice à roue indépendante pour véhicule électrique Expired - Lifetime EP1386815B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0072903U AT7478U1 (de) 2003-10-22 2003-10-22 Einzelradantriebseinheit
AT72903U 2003-10-22

Publications (3)

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

Family

ID=30004226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025148A Expired - Lifetime EP1386815B1 (fr) 2003-10-22 2003-11-03 Unité motrice à roue indépendante pour véhicule électrique

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103381839A (zh) * 2013-06-28 2013-11-06 长春轨道客车股份有限公司 100%低地板轻轨车刚性轮对单电机同轴两轮驱动机构

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307130B6 (cs) * 2008-11-06 2018-01-31 Ĺ KODA TRANSPORTATION a.s. Brzdové zařízení pro hnací jednotku tramvajového nízkopodlažního podvozku
DE102012014306B4 (de) 2012-07-19 2022-08-11 Volkswagen Aktiengesellschaft Kraftfahrzeug mit einem eine permanentmagneterregte elektrische Maschine umfassenden Antriebssystem sowie Verfahren zum Betreiben eines Antriebssystems eines Kraftfahrzeugs
DE102013221665A1 (de) * 2013-10-24 2015-04-30 Zf Friedrichshafen Ag Antriebssystem mit als Lüfter ausgebildeter Kupplung
DE102014215201A1 (de) 2014-08-01 2016-02-04 Zf Friedrichshafen Ag Einzelradantrieb für ein Schienenfahrzeug
ES2880439T3 (es) 2016-07-01 2021-11-24 Zapadoceska Univerzita V Plzni Unidad de accionamiento compacta para vehículos de tracción
DE102018210626B3 (de) 2018-06-28 2019-09-19 Ford Global Technologies, Llc Achsbaugruppe

Family Cites Families (9)

* 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
DE3030594A1 (de) * 1980-08-11 1982-02-18 Siemens AG, 1000 Berlin und 8000 München Triebaggregat fuer die treibachsen von schienenfahrzeugen
DE3618308A1 (de) * 1986-05-30 1987-12-03 Siemens Ag Radfuehrungsschwinge fuer horizontal schwenkbare schienenraeder
DK0567445T3 (da) * 1992-04-22 1996-05-20 Sgp Verkehrstechnik Enkelthjulsbogie til et skinnekøretøj, især til vogne med lavt beliggende gulv
AT406569B (de) * 1995-03-23 2000-06-26 Elin Ebg Traction Gmbh Fahrwerk für ein schienenfahrzeug, insbesondere niederflurstrassenbahn
JP3441242B2 (ja) * 1995-06-15 2003-08-25 財団法人鉄道総合技術研究所 車輪一体形回転電機
US5789833A (en) * 1995-11-24 1998-08-04 Kabushiki Kaisha Toshiba Totally-enclosed traction motor for electric railcar
AT405734B (de) * 1996-12-05 1999-11-25 Siemens Sgp Verkehrstech Gmbh Fahrwerk für einen gliederzug
ES2170619B1 (es) * 1999-11-18 2003-12-16 Talgo Patentes Disposicion de traccion diseminada aplicada a rodaduras ferroviarias monoeje equipadas con ruedas independientes.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103381839A (zh) * 2013-06-28 2013-11-06 长春轨道客车股份有限公司 100%低地板轻轨车刚性轮对单电机同轴两轮驱动机构

Also Published As

Publication number Publication date
ATE485204T1 (de) 2010-11-15
WO2005049399A1 (fr) 2005-06-02
DE50313199D1 (de) 2010-12-02
EP1386815A2 (fr) 2004-02-04
EP1386815A3 (fr) 2007-05-02
AT7478U1 (de) 2005-04-25

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