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EP1386815A2 - 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
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)
English (en)
Other versions
EP1386815A3 (fr
EP1386815B1 (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
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/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
Expired - Lifetime legal-status Critical Current

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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)
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 true EP1386815A2 (fr) 2004-02-04
EP1386815A3 EP1386815A3 (fr) 2007-05-02
EP1386815B1 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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014306A1 (de) 2012-07-19 2014-01-23 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
EP3263418A1 (fr) 2016-07-01 2018-01-03 Západoceská Univerzita V Plzni Unité d'entraînement compacte pour véhicules à traction
CZ307130B6 (cs) * 2008-11-06 2018-01-31 Ĺ KODA TRANSPORTATION a.s. Brzdové zařízení pro hnací jednotku tramvajového nízkopodlažního podvozku
DE102018210626B3 (de) 2018-06-28 2019-09-19 Ford Global Technologies, Llc Achsbaugruppe

Families Citing this family (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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030594A1 (de) * 1980-08-11 1982-02-18 Siemens AG, 1000 Berlin und 8000 München Triebaggregat fuer die treibachsen von schienenfahrzeugen
WO1996029224A1 (fr) * 1995-03-23 1996-09-26 Elin Antriebstechnik Gmbh Vehicule electrique, notamment vehicule sur rails a entrainement electrique, par exemple tramway a plate-forme basse
EP0749197A2 (fr) * 1995-06-15 1996-12-18 Kabushiki Kaisha Toshiba Machine électrique rotative à rotor extérieur et véhicule à moteur électrique l'utilisant
DE19648455A1 (de) * 1995-11-24 1997-10-30 Toshiba Kawasaki Kk Gekapselter Fahrmotor für elektrisches Schienenfahrzeug
WO1998024675A1 (fr) * 1996-12-05 1998-06-11 Siemens Sgp Verkehrstechnik Gmbh Dispositif de roulement pour vehicule ferroviaire

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 (de) * 1986-05-30 1987-12-03 Siemens Ag Radfuehrungsschwinge fuer horizontal schwenkbare schienenraeder
DE59301379D1 (de) * 1992-04-22 1996-02-22 Sgp Verkehrstechnik Fahrwerk für Schienenfahrzeuge, insbesondere Niederflurwagen
ES2170619B1 (es) * 1999-11-18 2003-12-16 Talgo Patentes Disposicion de traccion diseminada aplicada a rodaduras ferroviarias monoeje equipadas con ruedas independientes.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030594A1 (de) * 1980-08-11 1982-02-18 Siemens AG, 1000 Berlin und 8000 München Triebaggregat fuer die treibachsen von schienenfahrzeugen
WO1996029224A1 (fr) * 1995-03-23 1996-09-26 Elin Antriebstechnik Gmbh Vehicule electrique, notamment vehicule sur rails a entrainement electrique, par exemple tramway a plate-forme basse
EP0749197A2 (fr) * 1995-06-15 1996-12-18 Kabushiki Kaisha Toshiba Machine électrique rotative à rotor extérieur et véhicule à moteur électrique l'utilisant
DE19648455A1 (de) * 1995-11-24 1997-10-30 Toshiba Kawasaki Kk Gekapselter Fahrmotor für elektrisches Schienenfahrzeug
WO1998024675A1 (fr) * 1996-12-05 1998-06-11 Siemens Sgp Verkehrstechnik Gmbh Dispositif de roulement pour vehicule ferroviaire

Cited By (13)

* 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
DE102012014306A1 (de) 2012-07-19 2014-01-23 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
CN109415070A (zh) * 2016-07-01 2019-03-01 西波希米亚大学 用于牵引车辆的紧凑型驱动单元
WO2018002210A1 (fr) 2016-07-01 2018-01-04 Zapadoceska Univerzita V Plzni Unité d'entraînement compacte destinée à des véhicules à traction
CN109415070B (zh) * 2016-07-01 2020-12-08 西波希米亚大学 铁路牵引车辆的紧凑型驱动单元
EP3263418B1 (fr) * 2016-07-01 2021-01-13 Západoceská Univerzita V Plzni Unité d'entraînement compacte pour véhicules à traction
US11233440B2 (en) 2016-07-01 2022-01-25 Wikov Mgi A.S. Compact drive unit for traction vehicles
EP3263418A1 (fr) 2016-07-01 2018-01-03 Západoceská Univerzita V Plzni Unité d'entraînement compacte pour véhicules à traction
DE102018210626B3 (de) 2018-06-28 2019-09-19 Ford Global Technologies, Llc Achsbaugruppe
US10807462B2 (en) 2018-06-28 2020-10-20 Ford Global Technologies, Llc Axle assembly

Also Published As

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

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