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WO2009086884A1 - Ensemble roue - Google Patents

Ensemble roue Download PDF

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Publication number
WO2009086884A1
WO2009086884A1 PCT/EP2008/010672 EP2008010672W WO2009086884A1 WO 2009086884 A1 WO2009086884 A1 WO 2009086884A1 EP 2008010672 W EP2008010672 W EP 2008010672W WO 2009086884 A1 WO2009086884 A1 WO 2009086884A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
rim
rotor
wheel assembly
assembly according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/010672
Other languages
German (de)
English (en)
Inventor
Benedikt Hoefner
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.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler AG filed Critical Daimler AG
Publication of WO2009086884A1 publication Critical patent/WO2009086884A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle

Definitions

  • the invention relates to a wheel assembly for a motor vehicle, having a wheel hub rotatably mounted about a wheel axle, to which a rim of a wheel can be fixed, wherein an electrical machine is at least partially disposed in a part of a wheel space between the wheel hub and the rim.
  • the electric machine has a stator fixed to a non-rotatable vehicle part and a rotor which is coupled in terms of motion via a driver device with the rim and the wheel hub.
  • a braking device is arranged between the wheel hub and the rim.
  • DE 199 48 224 C1 describes a wheel assembly for a motor vehicle, with a wheel hub rotatably mounted about a wheel hub, to which a rim of a wheel is fixed.
  • an electric machine and a braking device are arranged in a wheel space between the wheel hub and the rim.
  • the electric machine comprises a hollow cylindrical stator, which is fixed to a rotationally fixed vehicle part.
  • a trained as an external rotor rotor surrounds the stator on the outer peripheral side.
  • a holder for holding the rotor is fixed together with the rim by means of wheel bolts on the wheel hub.
  • the rotor concentrically encloses a mechanical braking device, which is arranged in a part of the wheel space between the wheel hub and the rim.
  • Object of the present invention is therefore to provide a wheel assembly of the type mentioned, in which accessibility to the braking device is improved.
  • the wheel assembly according to the invention for a motor vehicle has a wheel hub rotatably mounted about a wheel axle, on which a rim of a wheel can be fixed.
  • an electric machine is at least partially disposed in a part of a wheel space between the wheel hub and the rim, wherein the electric machine has a stator fixed to a non-rotatable vehicle part and a rotor coupled via a driving device with the rim and the wheel hub rotor.
  • a brake device is arranged between the wheel hub and the rim, wherein the driver device is arranged radially outside the brake device.
  • the braking device can be made particularly easily accessible by the rim is released from the wheel hub. Neither when changing the rim nor during maintenance of the brake device or when changing the brake device, the electric machine must be dismantled.
  • the entrainment means comprises at least one axially arranged of the rotor driving pin, which is to be brought into engagement with a corresponding recess of the rim. This allows a particularly easy-to-solving positive connection of the rotor to the rim, which facilitates a transfer of torques and forces between the rotor and rim.
  • an outer diameter of the rotor can be particularly large, wherein the rotor can be formed close enough to a rim base of the rim.
  • the electric machine can generate a particularly high power.
  • a particularly cost-effective entrainment device is provided by the driving pins, which are to be brought into the corresponding recesses in the rim in engagement.
  • the rim is particularly easy to set at the wheel hub.
  • the entrainment device may comprise at least one radially projecting beyond the rotor tooth, which is to be brought into engagement with a arranged on the rim corresponding tooth in engagement or with a corresponding recess in the rim. This allows a particularly secure form-locking connection of the rotor to the rim in the manner of a splined connection, by which forces and torques can be transferred particularly well between the rotor and rim.
  • components of the wheel assembly such as the brake device, the wheel hub, the stub shaft and / or the wheel bearing, may be configured identically to a wheel assembly in which no electrical machine is arranged in the part of the wheel chamber between the wheel hub and the rim.
  • a maintenance and / or replacement of wearing parts, such as a brake disc and / or a brake caliper of the brake device can be done without disassembling the electric machine.
  • the arranged on the rim corresponding tooth is formed integrally with the rim. As a result, a particularly resilient connection of the corresponding tooth with the rim is created.
  • an axial length of the tooth is at least substantially equal to an axial length of the rim base of the rim.
  • the driver device is arranged uniformly spaced with respect to the rotor.
  • the axially arranged of the rotor driving pin and / or the radially projecting beyond the rotor teeth can lead to a particularly uniform outer peripheral side distribution of transmitted between the rotor and the rim forces and torques.
  • it can be ensured, in particular, that there is constant contact with the tooth protruding radially beyond the rotor with the corresponding tooth on the rim.
  • the driver device on the rotor side and / or rim side on a damping element.
  • the teeth radially projecting beyond the rotor and / or the corresponding teeth arranged on the rim can have a rubber coating which is suitable for compensating for shocks which are transmitted from a roadway to the wheel.
  • the damping elements torque fluctuations when driving the wheel by means of the electric machine and noise are attenuated.
  • the same advantages has a gumming of the axially arranged of the rotor driving pin and / or the corresponding recesses in the rim.
  • the driver device is formed on the rotor side in one piece with the rotor.
  • a particularly secure fixing of the driving pins and / or the radially projecting beyond the rotor teeth on the rotor is achieved.
  • such an assembly effort of a subsequent attachment of the driver device is reduced to the rotor.
  • the electric machine is designed as an external rotor machine, wherein the stator and / or the rotor are formed as a hollow cylinder.
  • the stator and / or the rotor are formed as a hollow cylinder.
  • a, in particular integrally formed with the stator, connecting element for fixing the stator to the non-rotatable vehicle part comprises a perforated ring.
  • This allows a particularly secure and accurate setting of the stator to the non-rotatable vehicle part.
  • the connection element is formed integrally with the stator, it is advantageously unnecessary to mount another component.
  • the electric machine is to be arranged as an assembly in the part of the wheel space.
  • the electric machine can be pre-assembled before it is fixed to the non-rotating vehicle part.
  • an air gap formed between the stator and the rotor can be set particularly accurately.
  • FIG. 1 is a sectional view of a wheel assembly in the direction of a wheel axle, wherein in a part of a wheel space between a wheel hub and a rim, an electric machine is arranged, wherein in another part of the wheel chamber, a braking device is arranged, and wherein radially via a rotor of the electric Machine protruding teeth are brought into contact with corresponding, arranged on the rim teeth; and
  • Fig. 2 is a sectional view of a second embodiment of the
  • Wheel assembly according to FIG. 1, wherein instead of the teeth brought into contact with each other on the rotor axially driving pins are arranged, which are brought into engagement with corresponding recesses in the rim.
  • the wheel assembly 10 comprises a wheel hub 12 mounted rotatably about the wheel axle A, to which a rim 16 of a wheel is fixed by means of fastening screws 14.
  • the wheel hub 12 is mounted by means of two axially spaced wheel bearings 18 on a coaxial with the wheel axle A extending stub shaft 20.
  • a brake device 22 is further defined by means of the fastening screws 14, which is designed here as a disc brake with a brake caliper 24 and a brake disc 26.
  • an electric machine 28 is arranged in an outer part of a wheel space between the wheel hub 12 and the rim 16.
  • the electric machine 28 is designed as an external rotor machine and has a hollow cylindrical stator 30 and a relative to the stator 30 movable, outer rotor 32.
  • an air gap 34 is formed between the stator 30 and the rotor 32.
  • the rotor 32 is mounted on the stator 30 via thin ring bearings 36 arranged axially outside the stator 30. By means of the thin-ring bearings 36, a sliding bearing of the rotor 32 is provided on the stator 30.
  • the electric machine 28 is completely integrated into the outer part of the wheel space between the rim 16 and the wheel hub 12.
  • a connecting element for fixing the stator 30 to a non-rotatable vehicle part 38 in this case comprises a perforated ring 40.
  • the electric machine 28 is a pre-assembled assembly, which the stator 30 and the rotor 32 includes to arrange in the outer part of the wheel space.
  • the perforated ring 40 thus represents a defined interface, by means of which a particularly precise connection of the electrical machine 28 with the rotationally fixed vehicle part 38 is made possible.
  • the connecting element which surrounds the perforated ring 40 for fixing the stator 30 to the rotationally fixed vehicle part 38 may also be formed integrally with the stator 30.
  • the connection element may be part of a housing of the stator 30.
  • a driving device for coupling movements of the rim 16 and the rotor 32 comprises a plurality of teeth 42 projecting radially beyond the rotor 32.
  • the outer peripheral side arranged on a housing of the rotor 32, in FIG. 1 shown tooth 42 is formed integrally with the housing of the rotor 32.
  • it can be provided to attach the teeth 42 subsequently to the housing of the rotor 32.
  • the teeth 42 are brought into abutment with corresponding teeth 44 arranged on the rim 16.
  • the braking device 22 embodied as a disk brake in alternative embodiments of the wheel assembly 10 can also be designed as a drum brake or other mechanical braking device 22.
  • the teeth 42, 44 have an axial length substantially equal to an axial length of a rim base 46 of the rim 16. As a result, a particularly large contact surface of the teeth 42, 44 given to each other. Of course, it is alternatively conceivable to dimension the axial length of the teeth 42, 44 such that the axial length of the rotor 32 is at least substantially equal.
  • Fig. 1 is further recognizable that facing outer edges of the teeth 42, 44 are formed with respect to the wheel axis A to a motor vehicle remote outside of the wheel out inclined.
  • mounting the rim 16 is particularly easy to carry out.
  • the rim 16 is in this case connected to the rotor 32 to form a positive connection by means of the teeth 42, 44 comprehensive entrainment device.
  • the rim 16 is frictionally fixed by means of the fastening screws 14 to the wheel hub 12. This creates a positive and non-positive unit, which a Particularly good transmission of forces and torques between the electric machine 28 and the rim 16 allows. Furthermore, so when disassembling the rim 16, the electric machine 28 must not be removed and the rotor 32 and the stator 30 need not be separated from each other.
  • Fig. 1 From Fig. 1 it can be seen that the teeth 42, 44 have at the mutually facing outer edges damping elements 48 in the form of an elastic rubber coating. In this way, shocks which are transmitted from a roadway to the wheel can be damped so that impact loads of the electric machine 28 are minimized. Likewise, the damping elements 48 serve to compensate for torque fluctuations in driving the rim 16 by means of the rotor 32 and cause noise to be attenuated.
  • FIG. 2 shows an alternative embodiment of the wheel assembly 10, in which the driving device arranged radially outside the braking device 22 comprises driving pins 52.
  • the driving pin 52 shown in Fig. 2 is disposed axially of the rotor 32 on the housing of the rotor 32 and is brought into engagement with a corresponding recess 54 in the rim 16.
  • a plurality of driving pins 52 are arranged uniformly spaced from one another on the housing of the rotor 32.
  • the driving pins 52 may be subsequently attached to the rotor 32 or be formed integrally with this already during the manufacture of the rotor 32.
  • the driving pin 52 and the recess 54 presently have a rubber coating for damping shocks, for compensating for torque fluctuations of the electric machine 28 and for damping noise. Due to the axial arrangement of the driving pins 52 on the rotor 32, a diameter of the rotor 32 can be dimensioned such that the rotor 32 reaches on the outer peripheral side particularly close to the rim 46 of the rim 16. As a result, a particularly high power can be generated by means of the electric machine 28.
  • Other elements of the alternative embodiment of the wheel assembly 10 shown in FIG. 2 correspond to the elements shown in FIG.
  • Main loads between the wheel and the track are received by the wheel hub 12 and the rim 16 in the wheel assemblies 10 shown in FIGS. 1 and 2.
  • the transmission of torques and forces between the rotor 32 and the rim 16 is ensured by the detachable, positive connections between the rotor 32 and the rim 16, without having to wait for the braking device 22 to remove the electric machine 28.

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)

Abstract

L'invention concerne un ensemble roue (10) pour un véhicule à moteur, comportant un moyeu (12) qui est monté de manière à pouvoir tourner autour d'un axe (A) et sur lequel peut être fixée une jante (16) d'une roue. Une machine électrique (28) est montée au moins partiellement dans une partie d'un compartiment de roue situé entre le moyeu (12) et la jante (16). La machine électrique (28) présente un stator (30) fixé sur une partie de véhicule (38) bloquée en rotation et un rotor (32) accouplé, de manière soliaire en déplacement, avec la jante (16) et le moyeu (12) par l'intermédiaire d'un dispositif d'entraînement. Un dispositif de freinage (22) est placé dans une autre partie du compartiment de roue situé entre le moyeu (12) et la jante (16). Le dispositif d'entraînement est situé radialement à l'extérieur du dispositif de freinage (22).
PCT/EP2008/010672 2008-01-12 2008-12-16 Ensemble roue Ceased WO2009086884A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008004081.9 2008-01-12
DE200810004081 DE102008004081A1 (de) 2008-01-12 2008-01-12 Radbaugruppe

Publications (1)

Publication Number Publication Date
WO2009086884A1 true WO2009086884A1 (fr) 2009-07-16

Family

ID=40456185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/010672 Ceased WO2009086884A1 (fr) 2008-01-12 2008-12-16 Ensemble roue

Country Status (2)

Country Link
DE (1) DE102008004081A1 (fr)
WO (1) WO2009086884A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013180663A2 (fr) 2012-05-29 2013-12-05 ELAPHE pogonske tehnologije, d.o.o. Conception mécanique d'un moteur roue électrique simple et précis à assembler
WO2019139545A1 (fr) 2018-01-09 2019-07-18 Elaphe Propulsion Technologies Ltd. Intégration de maintenance de moteur-roue électrique
WO2021173504A1 (fr) 2020-02-24 2021-09-02 Bendix Commercial Vehicle Systems Llc Tambour cannelé et ensemble de mise en prise de moteur électrique
US20230053415A1 (en) * 2020-02-05 2023-02-23 Atlas Technologies Holding B.V. Wheel assembly, vehicle, and method of assembling
US11635118B2 (en) 2020-01-17 2023-04-25 Bendix Commercial Vehicle Systems Llc Electric vehicle drum brake dust evacuation and cooling concept

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011011134B8 (de) * 2011-02-12 2013-04-18 Schomäcker Federnwerk GmbH Felge für gezogene Nutzfahrzeugachsen
ITMI20132160A1 (it) * 2013-12-20 2015-06-21 Freni Brembo Spa Assieme di ruota con motore e dispositivo di frenatura di un veicolo
GB2522907A (en) * 2014-02-10 2015-08-12 Db Capital Sdn Bhd Improvements in or relating to wheel hub electric motors
WO2021071801A1 (fr) * 2019-10-08 2021-04-15 Gacw Incorporated Véhicule tout-terrain comprenant des ensembles à roues à ressort à gaz couplés à un châssis
JP7329460B2 (ja) * 2020-01-28 2023-08-18 充治 駒田 電気自動車及びその製造方法
IT202200008264A1 (it) * 2022-04-27 2023-10-27 Ferrari Spa Dispositivo ruota con motore elettrico integrato per un autoveicolo
IT202200008270A1 (it) 2022-04-27 2023-10-27 Ferrari Spa Dispositivo ruota con motore elettrico integrato per un autoveicolo
DE102022116164A1 (de) * 2022-06-29 2024-01-04 Bayerische Motoren Werke Aktiengesellschaft Radnabenantrieb für ein Kraftfahrzeug sowie Kraftfahrzeug
DE102024000354A1 (de) * 2024-02-02 2025-08-07 Mercedes-Benz Group AG Radnabenantrieb für ein Kraftfahrzeug sowie Kraftfahrzeug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699550A2 (fr) * 1994-08-31 1996-03-06 Gerhard Riepl Propulsion électrique économisant l'énergie, pour petits véhicules
EP1380459A1 (fr) * 2001-04-16 2004-01-14 Kabushiki Kaisha Bridgestone Procede pour fixer un moteur de type integre dans la roue et systeme de moteur de type integre dans la roue

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948224C1 (de) 1999-10-07 2001-06-07 Daimler Chrysler Ag Fahrzeug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699550A2 (fr) * 1994-08-31 1996-03-06 Gerhard Riepl Propulsion électrique économisant l'énergie, pour petits véhicules
EP1380459A1 (fr) * 2001-04-16 2004-01-14 Kabushiki Kaisha Bridgestone Procede pour fixer un moteur de type integre dans la roue et systeme de moteur de type integre dans la roue

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013180663A2 (fr) 2012-05-29 2013-12-05 ELAPHE pogonske tehnologije, d.o.o. Conception mécanique d'un moteur roue électrique simple et précis à assembler
WO2019139545A1 (fr) 2018-01-09 2019-07-18 Elaphe Propulsion Technologies Ltd. Intégration de maintenance de moteur-roue électrique
US11635118B2 (en) 2020-01-17 2023-04-25 Bendix Commercial Vehicle Systems Llc Electric vehicle drum brake dust evacuation and cooling concept
US20230053415A1 (en) * 2020-02-05 2023-02-23 Atlas Technologies Holding B.V. Wheel assembly, vehicle, and method of assembling
WO2021173504A1 (fr) 2020-02-24 2021-09-02 Bendix Commercial Vehicle Systems Llc Tambour cannelé et ensemble de mise en prise de moteur électrique
DE112021001285T5 (de) 2020-02-24 2023-01-05 Bendix Commercial Vehicle Systems Llc Verkeilte trommel- und elektromotor-eingriffsbaugruppe
US11602951B2 (en) 2020-02-24 2023-03-14 Bendix Commercial Vehicle Systems Llc Splined drum and electric motor engagement assembly

Also Published As

Publication number Publication date
DE102008004081A1 (de) 2009-07-16

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