WO2014146652A1 - Essieu de véhicule automobile avec moteur électrique à proximité de la roue - Google Patents

Essieu de véhicule automobile avec moteur électrique à proximité de la roue Download PDF

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Publication number
WO2014146652A1
WO2014146652A1 PCT/DE2014/200020 DE2014200020W WO2014146652A1 WO 2014146652 A1 WO2014146652 A1 WO 2014146652A1 DE 2014200020 W DE2014200020 W DE 2014200020W WO 2014146652 A1 WO2014146652 A1 WO 2014146652A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor vehicle
vehicle axle
electric motor
wheel
transmission
Prior art date
Application number
PCT/DE2014/200020
Other languages
German (de)
English (en)
Inventor
Oswald Friedmann
Claude Holtz
Markus Jost
Original Assignee
Schaeffler Technologies Gmbh & Co. Kg
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 Schaeffler Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2014146652A1 publication Critical patent/WO2014146652A1/fr

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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • 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
    • B60K2007/0053—Disposition of motor in, or adjacent to, traction wheel the motor moving relative to the vehicle body and to 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
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle

Definitions

  • the present invention relates to a motor vehicle axle with a radnah arranged and partially sprung electric motor.
  • the invention has for its object to provide a motor vehicle axle with an electromechanical Einzelradantriebs adopted, which is characterized by a compact design and an advantageous Rad arrangements characterizing.
  • the unsprung mass should be kept as low as possible.
  • the dependent claims are directed to advantageous developments.
  • This advantageously makes it possible to provide an electromechanical single-wheel drive for a motor vehicle, in which part of the weight of a drive unit, namely that of an electric motor, is supported in a wheel suspension, preferably in its middle.
  • the concept according to the invention is particularly suitable for creating a driving-dynamically advantageous electric single-wheel drive for a motor vehicle in conjunction with a torsion-beam rear axle installed therein.
  • the Einzelradan- driving device is designed such that the electric motor is supported at two bearing points.
  • a bearing point lies between the two sections of a two-part suspension spring, which absorbs the body against the composite handlebar.
  • a support socket is arranged between the two spring sections, which is firmly connected to the housing of the electric motor.
  • a second bearing point is in the form of a rotatable mounting on the torsion beam axle.
  • a support arm is supported, which is firmly connected to the housing of the electric motor.
  • the support pan connected to the electric motor moves relative to the rest of the vehicle in the axial direction of the suspension spring.
  • the electric motor itself thus moves on a circular path whose radius is determined by the length of the support arm. It may be advantageous to choose the radius of the circular path as large as possible.
  • the compression of the support pan and thus the length of the circular path depends on the ratio of the stiffness of the two suspension spring sections. If these spring sections have identical geometry and rigidity, the support cup of the electric motor connected to the suspension spring accordingly moves by half the spring travel in comparison with the associated drive wheel. Preferably, both spring sections have substantially the same spring constants.
  • the unsprung mass includes the mass of the wheel, possibly together with the mass of the integrated gear, as well as a proportion of the mass of the electric motor. This proportion depends on the spring movement of the motor relative to the wheel and on the length of the support arm and moves between 0 and 100 percent.
  • the composite beam itself may be of conventional design with minor modifications.
  • connection points of the torsion beam to the vehicle chassis are not changed by the design according to the invention.
  • the drive unit comprises a transmission associated with the electric motor.
  • This is preferably arranged in the drive wheel.
  • the wheel bearing is preferably arranged in the transmission.
  • a propeller shaft is mounted between the electric motor and the transmission integrated in the drive gear.
  • This transmits the power of the electric motor to the transmission and compensates for the axial offset between the drive wheel axle and the motor axle.
  • the propeller shaft rotates at high speed, so that a high speed of the electric motor, for example, at least 14,000 1 / min are used.
  • a high speed of the electric motor for example, at least 14,000 1 / min are used.
  • the gearbox is independent of chassis parts and only flanged. As a result, the deformations of the torsion beam, which may occur minimally during compression, do not result in ner deformation of the transmission and an associated noise.
  • the provided for the pivotal connection of the electric motor to the torsion beam joint devices are preferably designed as elastomer joints that allow during a pivoting movement, a certain change in the orientation of the respective pivot axis and compensate for static over-determination.
  • the engine pivot axis and the torsion beam axis are preferably substantially parallel, i. at least parallel so that corresponding misalignment over the joint bushings can be compensated.
  • FIG. 1 is a schematic representation of the arrangement of the electric motor and its support on the suspension spring and the composite link in a side view of the wheel in the direction of the wheel axis
  • Fig. 2 is a schematic representation of the arrangement of Fig. 1 a in a plan view
  • Fig. 3 is a schematic representation of the arrangement of the electric motor and its support on the suspension spring and the composite link in a side view of the wheel in the direction of travel
  • Fig. 3 is a schematic representation of the arrangement of the electric motor and its support on the suspension spring and the composite link in a side view of the wheel in the direction of travel Detailed description of the drawings
  • Fig. 1 the arrangement of the electric motor 5 with respect to the motor vehicle axle 1 according to the invention is shown schematically. Shown is a side view of the drive wheel 2 and the wheel-side portion of the torsion beam 7, the suspension spring 4 and the electric motor 5.
  • the suspension spring is divided into two spring sections 4a and 4b, between which there is a first bearing point 4c, in which one with the electric motor connected support pan 5a is mounted.
  • the two spring sections 4a and 4b have identical geometry.
  • a support arm 5b connected to the electric motor which is rotatably mounted on a second bearing point 7a of the composite link 7 and is connected there to the composite link 7 via the support arm connection 8.
  • FIG. 1 shows in a plan view in the longitudinal axis of the suspension spring 4.
  • a fixed in the drive wheel 2 gearbox 3 This transmission 3 is connected via the propeller shaft 6 with the electric motor 5 and consists of two (not shown in detail here) connected in series planetary gears, in each case the input is formed by the sun gear and the output by the planet carrier.
  • FIG 3 shows the arrangement of Figure 2 in a side view of the wheel in the direction of travel. It can be seen that the arrangement according to the invention of the electric motor 5 does not reduce the ground clearance of the overall arrangement. It can also be seen that the spatial extension of the drive system according to the invention behaves almost space-neutral compared to the known axle arrangement. It can also be seen that the arrangement leaves enough space to integrate a conventional disc brake.

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 essieu de véhicule automobile avec un moteur électrique disposé à proximité de la roue et supporté en partie par ressort.
PCT/DE2014/200020 2013-03-22 2014-01-21 Essieu de véhicule automobile avec moteur électrique à proximité de la roue WO2014146652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013205127.1 2013-03-22
DE102013205127.1A DE102013205127B4 (de) 2013-03-22 2013-03-22 Kraftfahrzeugachse mit radnahem Elektromotor

Publications (1)

Publication Number Publication Date
WO2014146652A1 true WO2014146652A1 (fr) 2014-09-25

Family

ID=50189468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200020 WO2014146652A1 (fr) 2013-03-22 2014-01-21 Essieu de véhicule automobile avec moteur électrique à proximité de la roue

Country Status (2)

Country Link
DE (1) DE102013205127B4 (fr)
WO (1) WO2014146652A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004101304A1 (fr) * 2003-05-14 2004-11-25 Toyota Jidosha Kabushiki Kaisha Systeme de suspension pour un vehicule electrique
DE102007039058A1 (de) * 2007-08-17 2009-02-19 Zf Friedrichshafen Ag Angetriebene Fahrzeugachse
DE102009002440A1 (de) 2009-04-16 2010-10-21 Zf Friedrichshafen Ag Kraftfahrzeug
DE102010049615A1 (de) * 2009-11-25 2011-05-26 Schaeffler Technologies Gmbh & Co. Kg Einzelradantriebsvorrichtung und Fahrzeug mit Einzelradantriebsvorrichtung
DE102010023985A1 (de) * 2010-06-16 2011-08-04 Daimler AG, 70327 Radaufhängung
WO2014023302A1 (fr) * 2012-08-06 2014-02-13 Schaeffler Technologies AG & Co. KG Système d'entraînement individuel de roue électromécanique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4311139B2 (ja) 2003-09-12 2009-08-12 トヨタ自動車株式会社 車輪構造
JP4139353B2 (ja) 2004-05-25 2008-08-27 トヨタ自動車株式会社 車輪支持装置
JP2007161022A (ja) 2005-12-12 2007-06-28 Bridgestone Corp インホイールモータシステム
JP4360376B2 (ja) 2006-03-31 2009-11-11 トヨタ自動車株式会社 車両用駆動輪構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004101304A1 (fr) * 2003-05-14 2004-11-25 Toyota Jidosha Kabushiki Kaisha Systeme de suspension pour un vehicule electrique
DE102007039058A1 (de) * 2007-08-17 2009-02-19 Zf Friedrichshafen Ag Angetriebene Fahrzeugachse
DE102009002440A1 (de) 2009-04-16 2010-10-21 Zf Friedrichshafen Ag Kraftfahrzeug
DE102010049615A1 (de) * 2009-11-25 2011-05-26 Schaeffler Technologies Gmbh & Co. Kg Einzelradantriebsvorrichtung und Fahrzeug mit Einzelradantriebsvorrichtung
DE102010023985A1 (de) * 2010-06-16 2011-08-04 Daimler AG, 70327 Radaufhängung
WO2014023302A1 (fr) * 2012-08-06 2014-02-13 Schaeffler Technologies AG & Co. KG Système d'entraînement individuel de roue électromécanique

Also Published As

Publication number Publication date
DE102013205127A1 (de) 2014-09-25
DE102013205127B4 (de) 2022-08-11

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