EP3853054A1 - Drive device for an electrically driven axle of a motor vehicle - Google Patents

Drive device for an electrically driven axle of a motor vehicle

Info

Publication number
EP3853054A1
EP3853054A1 EP19773758.8A EP19773758A EP3853054A1 EP 3853054 A1 EP3853054 A1 EP 3853054A1 EP 19773758 A EP19773758 A EP 19773758A EP 3853054 A1 EP3853054 A1 EP 3853054A1
Authority
EP
European Patent Office
Prior art keywords
planetary gear
gear set
transmission
electrically driven
differential
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.)
Withdrawn
Application number
EP19773758.8A
Other languages
German (de)
French (fr)
Inventor
Frank Seemann
Paul Lenz
Andreas GROSSL
Werner HECHBERGER
Kai BORNTRÄGER
Maik WÖRL
Marco DI SARNO
Cong REN
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.)
ZF Drivetech Suzhou Co Ltd
ZF Friedrichshafen AG
Original Assignee
ZF Drivetech Suzhou Co Ltd
ZF Friedrichshafen 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 ZF Drivetech Suzhou Co Ltd, ZF Friedrichshafen AG filed Critical ZF Drivetech Suzhou Co Ltd
Publication of EP3853054A1 publication Critical patent/EP3853054A1/en
Withdrawn legal-status Critical Current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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B60Y2400/4244—Friction clutches of wet type, e.g. using multiple lamellae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/70—Gearings
    • B60Y2400/73—Planetary gearings

Definitions

  • the present invention relates to a drive device for an electrically driven axle of a motor vehicle according to the preamble of patent claim 1.
  • axles which are electrically driven by means of electrical machines and which have one or two gear stages in the case of light and medium-weight buses and trucks, the two-stage electrically driven axles being switchable.
  • Electrical machines are generally operated at high speeds, for example between 10,000 and 20,000 rpm, in order to achieve optimum efficiency.
  • high speed level in the electrically driven axles of a motor vehicle for vehicles, multi-stage transmissions are required, which must be made as compact as possible for reasons of installation space.
  • an electrically driven vehicle with a vehicle chassis and vehicle axles, which are connected to the chassis via links, with each drive wheel associated with individual wheel drive and with each drive wheel associated brake actuation is known.
  • the respective independent wheel drive is arranged in front of or behind the drive wheel in the direction of travel of the vehicle and is connected to the drive wheel via a spur gear chain, the housing of the spur gear chain forming part of the suspension of the axle carrying the drive wheel as a torsion beam link.
  • the electric motors drive each via a spur gear chain consisting of four externally toothed gears to a planetary gear stage, which is arranged coaxially to the wheel axis of rotation.
  • WO 12007829 A2 discloses an axle arrangement with a motor, a differential arrangement, a housing, a gear and a reduction gear set, the gear having a first and a second Includes planetary gear set, the planetary gear sets comprising associated (ie first and second) ring gears, planet carriers and sun gears.
  • the first planet carrier is coupled to a differential carrier of the differential arrangement for a common rotation
  • the second ring gear being coupled in a rotationally fixed manner
  • the second planet carrier being coupled to the second differential output for a common rotation
  • the second sun gear is coupled to the first sun gear for common rotation.
  • the reduction gear set is disposed between an output shaft of the motor and the first ring gear and includes a first gear that is coupled to the output shaft for common rotation and a second gear that is coupled to the first ring gear for common rotation is.
  • the present invention has for its object to provide a drive device for an electrically driven axle of a motor vehicle.
  • a drive device for an electrically driven axle of a motor vehicle which has at least one electric machine and a switchable transmission which is connected downstream of the at least one electric machine in the direction of power flow during train operation and which is coupled to a differential for distributing the drive torque to the wheels of the axle is, the transmission having a first and a second planetary gear set, which can be designed as minus or plus planetary gear sets, which are connected in series, each comprising a ring gear, a sun gear and a web, the drive of the gear Drive takes place via an external toothing of the ring gear of the first planetary gear set, the output of the first planetary gear set takes place via the web which is rotatably connected to the sun gear of the second planetary gear set, the sun gear of the first planetary gear set being releasable to a housing via a first switching element r can be coupled, the ring gear of the second planetary gear set is coupled to a housing and the output of the transmission takes place via the web of the second planetary gear
  • the second shifting element can be designed as a shifting element, by the closing of which the sun gear of the first planetary gear set can be detachably connected in a rotationally fixed manner, or by the closing of which the sun gear of the first planetary gear set can be detachably rotatably connected to the ring gear, or by closing it the ring gear of the first planetary gear set can be detachably and non-rotatably connected to the web.
  • the external toothing of the ring gear of the first planetary gear set, in which a correspondingly designed drive pinion of the at least one electric machine engages, is preferably designed as helical toothing.
  • the ring gear of the first planetary gear set which according to the invention is externally toothed, is double-mounted on the web by two bearings, which are each arranged axially at the ends of the ring gear.
  • the ring gear is stabilized with regard to the radial forces which are generated by the first transmission stage, namely the transmission stage of the first planetary gear set.
  • an oval deformation of the ring gear is prevented, whereby axial forces resulting from the helical toothing of the ring gear are absorbed.
  • the at least one electric machine, the transmission and the differential are arranged in a row transversely to the longitudinal direction of the vehicle, which is also made possible by the compact axial construction of the transmission, the transmission and the differential being concentric an output shaft of the differential are arranged such that the output shaft of the differential is guided through the transmission to a wheel of the electrically driven axle.
  • two electric machines are provided, these are preferably arranged one behind the other, viewed in the vehicle longitudinal direction, on one side of the output shaft of the differential, the longitudinal axes of which run parallel to the output shaft of the differential.
  • an electric machine is provided, its longitudinal axis runs parallel to the output shaft of the differential.
  • the transmission preferably has two gears.
  • the first gear of the transmission is switched by closing the first switching element and coupling the sun gear of the first planetary gear set to the housing, the second gear being realized by closing the second switching element and thus blocking the first planetary gear set.
  • the reverse gears are realized by reversing the direction of rotation of the at least one electric machine.
  • the clutches can be designed as multi-plate clutches, so that the transmission can be shifted fully under load. If the clutch for the first gear is designed as a claw and the clutch for the second gear as a multi-plate clutch, pull-shifts can be powershifted. If both clutches are designed as claws, they can only be switched with an interruption in tractive power.
  • the design according to the invention provides a drive device for an electrically driven axle of a motor vehicle in a simple and inexpensive manner, which enables a very compact design in the longitudinal direction of the vehicle.
  • Figure 1 A schematic representation of an embodiment of the invention
  • Figure 2 A schematic representation to illustrate the double bearing of the externally toothed ring gear of the first planetary gear set of the transmission.
  • a drive device 1 for an electrically driven axle of a motor vehicle has two electric machines EM1, EM2 and a switchable transmission 2 which is connected downstream of the electric machines EM1, EM2 in the direction of power flow during train operation and which is connected to a differential 3 is coupled to the distribution of the drive torque on the wheels 4 of the axis 5.
  • the transmission 2 here has a first and a second minus planetary gear set 6, 7, which are connected in series, each comprising a ring gear, a sun gear and a carrier, the drive of the transmission 2 via an external toothing of the ring gear 8 of the first planetary gear set 6, the output of the first planetary gear set 6 taking place via the web 9, which is connected to the sun gear 11 of the second planetary gear set 7 in a rotationally fixed manner.
  • a correspondingly designed drive pinion 17, 18 of the electric machines EM1, EM2 engages in the external toothing of the ring gear 8 of the first planetary gear set 6, which is preferably designed as a helical toothing.
  • the sun gear 10 of the first planetary gear set 6 can be detachably coupled to a housing G via a first switching element 14, the ring gear 12 of the second planetary gear set being coupled to a housing G and the output of the transmission 2 via the web 13 of the second planetary gear set 7.
  • a second switching element 15 is provided, by closing the first planetary gear set 6.
  • the second switching element is designed as a switching element, by the closing of which the sun gear 10 of the first planetary gear set 6 can be detachably and non-rotatably connected to the web 9.
  • the electrical machines EM1, EM2 viewed in the longitudinal direction of the vehicle, are one behind the other on one side of an output shaft 16 of the differential 3 arranged, the longitudinal axes of which run parallel to the output shaft 16 of the differential 3. Furthermore, the electrical machines EM1, EM2 (considered as one unit), the transmission 2 and the differential 3 are arranged in series transversely to the longitudinal direction of the vehicle, the transmission 2 and the differential 3 being arranged concentrically to the output shaft 16 of the differential 3.
  • the web 9, 13 and the sun gear 10, 11 of the first and second planetary gear sets 6, 7 are made hollow, so that the output shaft 16 of the differential 3 is guided through the gear 2 to a wheel 4 of the electrically driven axle 5 .
  • the flute wheel 8 of the first planetary gear set 6 of the transmission 2 which is externally toothed according to the invention, is on the web 9 by two radial bearings 19, 20, which are each viewed axially at the ends of the flute wheel 8 of the first planetary gear set 6 mounted twice. Characterized the Flohlrad 8 is stabilized with respect to the radial forces that are generated by the gear ratio of the first planetary gear set 6.

Abstract

The invention relates to a drive device (1) for an electrically driven axle (5) of a motor vehicle, comprising at least one electric machine (EM1, EM2) and a shiftable transmission (2) which is connected downstream of the at least one electric machine (EM1, EM2) in the direction of force flow in the traction mode and which is connected to a differential (3) for distributing the drive torque to the wheels (4) of the axle (5), wherein the transmission (2) comprises a first and a second planetary gear set (6, 7) which are connected one behind the other, wherein the drive of the transmission (2) is driven via an external toothing of the ring gear (8) of the first planetary gear set (6), wherein the output of the first planetary gear set (6) takes place via the planet carrier (9) which is connected to the sun gear (11) of the second planetary gear set (7) in a rotationally fixed manner, wherein the sun gear (10) of the first planetary gear set (6) can be detachably coupled to a housing (G) via a first switching element (14), wherein the ring gear (12) of the second planetary gear set (7) is coupled to a housing (G), wherein the output of the transmission (2) takes place via the planet carrier (13) of the second planetary gear set (7), and wherein a second shifting element (15) is provided, by the closure of which the first planetary gear set (6) of the transmission (2) can be blocked.

Description

Antriebsvorrichtunq für eine elektrisch anqetriebene Achse eines Kraftfahrzeugs  Drive device for an electrically driven axle of a motor vehicle
Die vorliegende Erfindung betrifft eine Antriebsvorrichtung für eine elektrisch ange- triebene Achse eines Kraftfahrzeugs gemäß dem Oberbegriff des Patentan- spruchs 1 . The present invention relates to a drive device for an electrically driven axle of a motor vehicle according to the preamble of patent claim 1.
Aus dem Stand der Technik ist bekannt, bei leichten und mittelschweren Bussen und LKWs elektrisch mittels Elektromaschinen angetriebene Achsen einzusetzen, die eine oder zwei Getriebestufen aufweisen, wobei die zweistufigen elektrisch angetriebenen Achsen schaltbar ausgeführt sein können. It is known from the prior art to use axles which are electrically driven by means of electrical machines and which have one or two gear stages in the case of light and medium-weight buses and trucks, the two-stage electrically driven axles being switchable.
Elektromaschinen werden in der Regel bei hohen Drehzahlen, beispielsweise zwi- schen 10.000 - 20.000 U/min betrieben, um einen optimalen Wirkungsgrad zu er- zielen. Um das hohe Drehzahlniveau bei elektrisch angetriebenen Achsen eines Kraftfahrzeugs für Fahrzeuge nutzen zu können, sind mehrstufige Getriebe not- wendig, welche aus Bauraumgründen so kompakt wie möglich gestaltet werden müssen. Electrical machines are generally operated at high speeds, for example between 10,000 and 20,000 rpm, in order to achieve optimum efficiency. In order to be able to use the high speed level in the electrically driven axles of a motor vehicle for vehicles, multi-stage transmissions are required, which must be made as compact as possible for reasons of installation space.
Aus der EP 0 966 361 B1 der Anmelderin ist ein elektrisch angetriebenes Fahrzeug mit einem Fahrzeugchassis und Fahrzeugachsen, die über Lenker mit dem Chas- sis verbunden sind, mit jedem Antriebsrad zugehörigem Einzelradantrieb und mit jedem Antriebsrad zugehöriger Bremsbetätigung bekannt. Hierbei ist vorgesehen, dass der jeweilige Einzelradantrieb in Fahrtrichtung des Fahrzeugs vor oder hinter dem Antriebsrad angeordnet ist und mit dem Antriebsrad über eine Stirnräderkette verbunden ist, wobei das Gehäuse der Stirnräderkette als ein Verbundlenker ein Teil der Aufhängung der das Antriebsrad tragenden Achse bildet. Die Elektromoto- ren treiben über je eine aus vier außenverzahnten Zahnrädern bestehende Stirn räderkette auf je eine Planetengetriebestufe, die koaxial zur Raddrehachse ange- ordnet ist. From EP 0 966 361 B1 by the applicant, an electrically driven vehicle with a vehicle chassis and vehicle axles, which are connected to the chassis via links, with each drive wheel associated with individual wheel drive and with each drive wheel associated brake actuation is known. It is provided that the respective independent wheel drive is arranged in front of or behind the drive wheel in the direction of travel of the vehicle and is connected to the drive wheel via a spur gear chain, the housing of the spur gear chain forming part of the suspension of the axle carrying the drive wheel as a torsion beam link. The electric motors drive each via a spur gear chain consisting of four externally toothed gears to a planetary gear stage, which is arranged coaxially to the wheel axis of rotation.
Aus der WO 12007829 A2 geht eine Achsenanordnung mit einem Motor, einer Differentialanordnung, einem Gehäuse, einem Getriebe und einem Unterset- zungszahnradsatz hervor, wobei das Getriebe einen ersten und einen zweiten Planetenradsatz umfasst, wobei die Planetenradsätze zugeordnete (d. h. erste und zweite) Hohlräder, Planetenträger und Sonnenräder umfassen. Bei der be- kannten Achsenanordnung ist der erste Planetenträger mit einem Differentialträger der Differentialanordnung für eine gemeinsame Drehung gekoppelt, wobei das zweite Hohlrad mit dem Gehäuse drehfest gekoppelt ist, der zweite Planetenträger mit dem zweiten Differentialausgang für eine gemeinsame Drehung gekoppelt ist und wobei das zweite Sonnenrad mit dem ersten Sonnenrad für eine gemeinsame Drehung gekoppelt ist. Ferner ist der Untersetzungszahnradsatz zwischen einer Ausgangswelle des Motors und dem ersten Hohlrad angeordnet und umfasst ein erstes Zahnrad, das mit der Ausgangswelle für eine gemeinsame Drehung gekop- pelt ist, und ein zweites Zahnrad, das mit dem ersten Hohlrad für eine gemeinsa- me Drehung gekoppelt ist. WO 12007829 A2 discloses an axle arrangement with a motor, a differential arrangement, a housing, a gear and a reduction gear set, the gear having a first and a second Includes planetary gear set, the planetary gear sets comprising associated (ie first and second) ring gears, planet carriers and sun gears. In the known axle arrangement, the first planet carrier is coupled to a differential carrier of the differential arrangement for a common rotation, the second ring gear being coupled in a rotationally fixed manner, the second planet carrier being coupled to the second differential output for a common rotation, and the second sun gear is coupled to the first sun gear for common rotation. Further, the reduction gear set is disposed between an output shaft of the motor and the first ring gear and includes a first gear that is coupled to the output shaft for common rotation and a second gear that is coupled to the first ring gear for common rotation is.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Antriebsvorrichtung für eine elektrisch angetriebene Achse eines Kraftfahrzeugs anzugeben. The present invention has for its object to provide a drive device for an electrically driven axle of a motor vehicle.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Weitere Vorteile und vorteilhafte Ausgestaltungen gehen aus den Unteran- sprüchen hervor. This object is achieved by the features of claim 1. Further advantages and advantageous configurations emerge from the subclaims.
Demnach wird eine Antriebsvorrichtung für eine elektrisch angetriebene Achse eines Kraftfahrzeugs vorgeschlagen, welche zumindest eine Elektromaschine und ein der zumindest einen Elektromaschine in Kraftflussrichtung im Zugbetrieb nachgeschalte- tes schaltbares Getriebe aufweist, welches an ein Differential zur Verteilung des An- triebsmomentes auf die Räder der Achse gekoppelt ist, wobei das Getriebe einen ersten und einen zweiten Planeten radsatz aufweist, welche als Minus- oder Pluspla- netenradsätze ausgeführt sein können, die hintereinander geschaltet sind, umfas- send jeweils ein Hohlrad, ein Sonnenrad und einen Steg, wobei der Antrieb des Ge- triebes über eine Außenverzahnung des Hohlrades des ersten Planetenradsatzes erfolgt, wobei der Abtrieb des ersten Planetenradsatzes über den Steg erfolgt, der mit dem Sonnenrad des zweiten Planetenradsatzes drehfest verbunden ist, wobei das Sonnenrad des ersten Planetenradsatzes über ein erstes Schaltelement an ein Gehäuse lösbar ankoppelbar ist, wobei das Hohlrad des zweiten Planetenradsatzes an ein Gehäuse gekoppelt ist und wobei der Abtrieb des Getriebes über den Steg des zweiten Planetenradsatzes erfolgt. Ferner ist ein zweites Schaltelement vorge- sehen, durch dessen Schließen der erste Planetenradsatz verblockbar ist. Accordingly, a drive device for an electrically driven axle of a motor vehicle is proposed, which has at least one electric machine and a switchable transmission which is connected downstream of the at least one electric machine in the direction of power flow during train operation and which is coupled to a differential for distributing the drive torque to the wheels of the axle is, the transmission having a first and a second planetary gear set, which can be designed as minus or plus planetary gear sets, which are connected in series, each comprising a ring gear, a sun gear and a web, the drive of the gear Drive takes place via an external toothing of the ring gear of the first planetary gear set, the output of the first planetary gear set takes place via the web which is rotatably connected to the sun gear of the second planetary gear set, the sun gear of the first planetary gear set being releasable to a housing via a first switching element r can be coupled, the ring gear of the second planetary gear set is coupled to a housing and the output of the transmission takes place via the web of the second planetary gear set. Furthermore, a second shift element is provided, by closing the first planetary gear set.
Das zweite Schaltelement kann als Schaltelement ausgeführt sein, durch dessen Schließen das Sonnenrad des ersten Planetenradsatzes mit dem Steg lösbar dreh- fest verbindbar ist oder durch dessen Schließen das Sonnenrad des ersten Planeten- radsatzes mit dem Hohlrad lösbar drehfest verbindbar ist oder durch dessen Schlie- ßen das Hohlrad des ersten Planetenradsatzes mit dem Steg lösbar drehfest ver- bindbar ist. The second shifting element can be designed as a shifting element, by the closing of which the sun gear of the first planetary gear set can be detachably connected in a rotationally fixed manner, or by the closing of which the sun gear of the first planetary gear set can be detachably rotatably connected to the ring gear, or by closing it the ring gear of the first planetary gear set can be detachably and non-rotatably connected to the web.
Die Außenverzahnung des Hohlrades des ersten Planetenradsatzes, in die ein ent- sprechend ausgeführtes Antriebsritzel der zumindest einen Elektromaschine ein- greift, ist vorzugsweise als Schrägverzahnung ausgeführt. The external toothing of the ring gear of the first planetary gear set, in which a correspondingly designed drive pinion of the at least one electric machine engages, is preferably designed as helical toothing.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist das erfindungsgemäß au- ßenverzahnt ausgeführte Hohlrad des ersten Planeten radsatzes durch zwei Lager, die jeweils axial betrachtet an den Enden des Hohlrades angeordnet sind, am Steg doppelt gelagert. According to an advantageous embodiment of the invention, the ring gear of the first planetary gear set, which according to the invention is externally toothed, is double-mounted on the web by two bearings, which are each arranged axially at the ends of the ring gear.
Auf diese Weise wird das Hohlrad hinsichtlich der Radialkräfte, die von der ersten Übersetzungsstufe, nämlich der Übersetzungsstufe des ersten Planetenradsatzes erzeugt werden, stabilisiert. Zudem wird eine ovale Verformung des Hohlrades ver- hindert, wobei aus der Schrägverzahnung des Hohlrades resultierende Axialkräfte aufgenommen werden. In this way, the ring gear is stabilized with regard to the radial forces which are generated by the first transmission stage, namely the transmission stage of the first planetary gear set. In addition, an oval deformation of the ring gear is prevented, whereby axial forces resulting from the helical toothing of the ring gear are absorbed.
Gemäß einer vorteilhaften Weiterbildung der Erfindung sind die zumindest eine Elekt- romaschine, das Getriebe und das Differential in Reihe quer zur Fahrzeuglängsrich- tung angeordnet, was auch durch die kompakte axiale Bauweise des Getriebes er- möglicht wird, wobei das Getriebe und das Differential konzentrisch zu einer Ab- triebswelle des Differentials angeordnet sind, derart, dass die Abtriebswelle des Dif- ferentials durch das Getriebe zu einem Rad der elektrisch angetriebenen Achse ge- führt wird. Für den Fall, dass zwei Elektromaschinen vorgesehen sind, sind diese vorzugsweise in Fahrzeuglängsrichtung betrachtet hintereinander an je einer Seite der Abtriebswel- le des Differentials angeordnet, wobei deren Längsachsen parallel zur Abtriebswelle des Differentials verlaufen. Für den Fall, dass eine Elektromaschine vorgesehen ist, verläuft deren Längsachse parallel zur Abtriebswelle des Differentials. According to an advantageous development of the invention, the at least one electric machine, the transmission and the differential are arranged in a row transversely to the longitudinal direction of the vehicle, which is also made possible by the compact axial construction of the transmission, the transmission and the differential being concentric an output shaft of the differential are arranged such that the output shaft of the differential is guided through the transmission to a wheel of the electrically driven axle. In the event that two electric machines are provided, these are preferably arranged one behind the other, viewed in the vehicle longitudinal direction, on one side of the output shaft of the differential, the longitudinal axes of which run parallel to the output shaft of the differential. In the event that an electric machine is provided, its longitudinal axis runs parallel to the output shaft of the differential.
Dadurch wird der Vorteil erzielt, dass sich in Fahrzeuglängsrichtung eine sehr kom- pakte Bauweise ergibt. Darüber hinaus wird in vorteilhafter Weise die Breite inner- halb des Leiterrahmens optimal ausgenutzt. This has the advantage that a very compact construction results in the longitudinal direction of the vehicle. In addition, the width within the lead frame is optimally utilized in an advantageous manner.
Das Getriebe weist vorzugsweise zwei Gänge auf. Der erste Gang des Getriebes wird durch Schließen des ersten Schaltelementes und Koppeln des Sonnenrades des ersten Planeten radsatzes an das Gehäuse geschaltet, wobei der zweite Gang durch Schließen des zweiten Schaltelementes und somit durch Verblocken des ers- ten Planetenradsatzes realisiert wird. Die Rückwärtsgänge werden durch Drehrich- tungsumkehr der zumindest einen Elektromaschine realisiert. Die Kupplungen kön- nen als Lamellenkupplungen ausgebildet werden, so dass das Getriebe voll last- schaltbar geschaltet werden kann. Wird die Kupplung für den ersten Gang als Klaue und die Kupplung für den zweiten Gang als Lamellenkupplung ausgeführt, sind Zug- schaltungen lastschaltbar. Werden beide Kupplungen als Klauen ausgeführt ist ledig- lich mit Zugkraftunterbrechung schaltbar. The transmission preferably has two gears. The first gear of the transmission is switched by closing the first switching element and coupling the sun gear of the first planetary gear set to the housing, the second gear being realized by closing the second switching element and thus blocking the first planetary gear set. The reverse gears are realized by reversing the direction of rotation of the at least one electric machine. The clutches can be designed as multi-plate clutches, so that the transmission can be shifted fully under load. If the clutch for the first gear is designed as a claw and the clutch for the second gear as a multi-plate clutch, pull-shifts can be powershifted. If both clutches are designed as claws, they can only be switched with an interruption in tractive power.
Durch die erfindungsgemäße Konzeption wird auf einfache und kostengünstige Wei- se eine Antriebsvorrichtung für eine elektrisch angetriebene Achse eines Kraftfahr- zeugs zur Verfügung gestellt, welche eine sehr kompakte Bauweise in Fahr- zeuglängsrichtung ermöglicht. The design according to the invention provides a drive device for an electrically driven axle of a motor vehicle in a simple and inexpensive manner, which enables a very compact design in the longitudinal direction of the vehicle.
Die Erfindung wird im Folgenden anhand der beigefügten Figuren, beispielhaft näher erläutert. Es zeigen: The invention is explained in more detail below by way of example with reference to the accompanying figures. Show it:
Figur 1 : Eine schematische Darstellung einer Ausgestaltung der Erfindung; und Figur 2: Eine schematische Darstellung zur Veranschaulichung der doppelten Lage- rung des außenverzahnten Hohlrades des ersten Planetenradsatzes des Getriebes. Figure 1: A schematic representation of an embodiment of the invention; and Figure 2: A schematic representation to illustrate the double bearing of the externally toothed ring gear of the first planetary gear set of the transmission.
Bezugnehmend auf die beigefügte Figur 1 weist eine erfindungsgemäße Antriebsvor- richtung 1 für eine elektrisch angetriebene Achse eines Kraftfahrzeugs zwei Elektro- maschinen EM1 , EM2 und ein den Elektromaschinen EM1 , EM2 in Kraftflussrichtung im Zugbetrieb nachgeschaltetes schaltbares Getriebe 2 auf, welches an ein Differen- tial 3 zur Verteilung des Antriebsmomentes auf die Räder 4 der Achse 5 gekoppelt ist. With reference to the attached FIG. 1, a drive device 1 according to the invention for an electrically driven axle of a motor vehicle has two electric machines EM1, EM2 and a switchable transmission 2 which is connected downstream of the electric machines EM1, EM2 in the direction of power flow during train operation and which is connected to a differential 3 is coupled to the distribution of the drive torque on the wheels 4 of the axis 5.
Das Getriebe 2 weist hierbei einen ersten und einen zweiten Minus-Planetenradsatz 6, 7 auf, die hintereinander geschaltet sind, umfassend jeweils ein Hohlrad, ein Son- nenrad und einen Steg, wobei der Antrieb des Getriebes 2 über eine Außenverzah- nung des Hohlrades 8 des ersten Planetenradsatzes 6 erfolgt, wobei der Abtrieb des ersten Planetenradsatzes 6 über den Steg 9 erfolgt, der mit dem Sonnenrad 11 des zweiten Planetenradsatzes 7 drehfest verbunden ist. In die Außenverzahnung des Hohlrades 8 des ersten Planetenradsatzes 6, die vorzugsweise als Schrägverzah- nung ausgeführt ist, greift jeweils ein entsprechend ausgeführtes Antriebsritzel 17, 18 der Elektromaschinen EM1 , EM2 ein. The transmission 2 here has a first and a second minus planetary gear set 6, 7, which are connected in series, each comprising a ring gear, a sun gear and a carrier, the drive of the transmission 2 via an external toothing of the ring gear 8 of the first planetary gear set 6, the output of the first planetary gear set 6 taking place via the web 9, which is connected to the sun gear 11 of the second planetary gear set 7 in a rotationally fixed manner. A correspondingly designed drive pinion 17, 18 of the electric machines EM1, EM2 engages in the external toothing of the ring gear 8 of the first planetary gear set 6, which is preferably designed as a helical toothing.
Ferner ist das Sonnenrad 10 des ersten Planeten radsatzes 6 über ein erstes Schalt- element 14 an ein Gehäuse G lösbar ankoppelbar, wobei das Hohlrad 12 des zwei- ten Planetenradsatzes an ein Gehäuse G gekoppelt ist und wobei der Abtrieb des Getriebes 2 über den Steg 13 des zweiten Planetenradsatzes 7 erfolgt. Furthermore, the sun gear 10 of the first planetary gear set 6 can be detachably coupled to a housing G via a first switching element 14, the ring gear 12 of the second planetary gear set being coupled to a housing G and the output of the transmission 2 via the web 13 of the second planetary gear set 7.
Ferner ist ein zweites Schaltelement 15 vorgesehen, durch dessen Schließen der erste Planetenradsatz 6 verblockbar ist. Bei dem in Figur 1 gezeigten Beispiel ist das zweite Schaltelement als Schaltelement ausgeführt, durch dessen Schließen das Sonnenrad 10 des ersten Planetenradsatzes 6 mit dem Steg 9 lösbar drehfest ver- bindbar ist. Furthermore, a second switching element 15 is provided, by closing the first planetary gear set 6. In the example shown in FIG. 1, the second switching element is designed as a switching element, by the closing of which the sun gear 10 of the first planetary gear set 6 can be detachably and non-rotatably connected to the web 9.
Bei dem in Figur 1 gezeigten Beispiel sind die Elektromaschinen EM1 , EM2 in Fahr- zeuglängsrichtung betrachtet hintereinander an je einer Seite einer Abtriebswelle 16 des Differentials 3 angeordnet, wobei deren Längsachsen parallel zur Abtriebswelle 16 des Differentials 3 verlaufen. Ferner sind die Elektromaschinen EM1 , EM2 (als eine Einheit betrachtet), das Getriebe 2 und das Differential 3 in Reihe quer zur Fahrzeuglängsrichtung angeordnet, wobei das Getriebe 2 und das Differential 3 kon- zentrisch zur Abtriebswelle 16 des Differentials 3 angeordnet sind. In the example shown in FIG. 1, the electrical machines EM1, EM2, viewed in the longitudinal direction of the vehicle, are one behind the other on one side of an output shaft 16 of the differential 3 arranged, the longitudinal axes of which run parallel to the output shaft 16 of the differential 3. Furthermore, the electrical machines EM1, EM2 (considered as one unit), the transmission 2 and the differential 3 are arranged in series transversely to the longitudinal direction of the vehicle, the transmission 2 and the differential 3 being arranged concentrically to the output shaft 16 of the differential 3.
Zu diesem Zweck sind der Steg 9, 13 und das Sonnenrad 10, 11 des ersten und des zweiten Planetenradsatzes 6, 7 hohl ausgeführt, so dass die Abtriebswelle 16 des Differentials 3 durch das Getriebe 2 zu einem Rad 4 der elektrisch angetriebenen Achse 5 geführt wird. For this purpose, the web 9, 13 and the sun gear 10, 11 of the first and second planetary gear sets 6, 7 are made hollow, so that the output shaft 16 of the differential 3 is guided through the gear 2 to a wheel 4 of the electrically driven axle 5 .
Gemäß einer vorteilhaften Ausgestaltung der Erfindung und bezugnehmend auf Fi- gur 2 ist das erfindungsgemäß außenverzahnt ausgeführte Flohlrad 8 des ersten Planetenradsatzes 6 des Getriebes 2 durch zwei Radiallager 19, 20, die jeweils axial betrachtet an den Enden des Flohlrades 8 angeordnet sind, am Steg 9 des ersten Planetenradsatzes 6 doppelt gelagert. Dadurch wird das Flohlrad 8 hinsichtlich der Radialkräfte, die von der Übersetzungsstufe des ersten Planeten radsatzes 6 erzeugt werden, stabilisiert. According to an advantageous embodiment of the invention and with reference to FIG. 2, the flute wheel 8 of the first planetary gear set 6 of the transmission 2, which is externally toothed according to the invention, is on the web 9 by two radial bearings 19, 20, which are each viewed axially at the ends of the flute wheel 8 of the first planetary gear set 6 mounted twice. Characterized the Flohlrad 8 is stabilized with respect to the radial forces that are generated by the gear ratio of the first planetary gear set 6.
Bezuqszeichen Reference sign
1 Antriebsvorrichtung 1 drive device
Getriebe  transmission
Differential  differential
Rad  wheel
elektrisch angetriebene Achse erster Planetenradsatz  electrically driven axle first planetary gear set
zweiter Planetenradsatz  second planetary gear set
Hohlrad  Ring gear
Steg  web
10 Sonnenrad  10 sun gear
11 Sonnenrad  11 sun gear
12 Hohlrad  12 ring gear
13 Steg  13 bridge
14 erstes Schaltelement  14 first switching element
15 zweites Schaltelement  15 second switching element
16 Abtriebswelle  16 output shaft
17 Antriebsritzel  17 drive pinion
18 Antriebsritzel  18 drive pinion
19 Lager  19 bearings
20 Lager  20 bearings
G Gehäuse  G housing
EM1 Elektromaschine  EM1 electric machine
EM2 Elektromaschine  EM2 electric machine

Claims

Patentansprüche Claims
1. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs aufweisend zumindest eine Elektromaschine (EM1 , EM2) und ein der zumin- dest einen Elektromaschine (EM1 , EM2) in Kraftflussrichtung im Zugbetrieb nachge- schaltetes schaltbares Getriebe (2), welches an ein Differential (3) zur Verteilung des Antriebsmomentes auf die Räder (4) der elektrisch angetriebenen Achse (5) gekop- pelt ist, dadurch gekennzeichnet, dass das Getriebe (2) einen ersten und einen zwei- ten Planetenradsatz (6, 7) aufweist, die hintereinander geschaltet sind, umfassend jeweils ein Hohlrad (8, 12), ein Sonnenrad (10, 1 1 ) und einen Steg (9, 13), wobei der Antrieb des Getriebes (2) über eine Außenverzahnung des Hohlrades (8) des ersten Planetenradsatzes (6) erfolgt, wobei der Abtrieb des ersten Planetenradsatzes (6) über den Steg (9) erfolgt, der mit dem Sonnenrad (11 ) des zweiten Planetenradsat- zes (7) drehfest verbunden ist, wobei das Sonnenrad (10) des ersten Planetenrad- satzes (6) über ein erstes Schaltelement (14) an ein Gehäuse (G) lösbar ankoppelbar ist, wobei das Hohlrad (12) des zweiten Planetenradsatzes (7) an ein Gehäuse (G) gekoppelt ist, wobei der Abtrieb des Getriebes (2) über den Steg (13) des zweiten Planetenradsatzes (7) erfolgt und wobei ein zweites Schaltelement (15) vorgesehen ist, durch dessen Schließen der erste Planetenradsatz (6) des Getriebes (2) verb- lockbar ist. 1. Drive device (1) for an electrically driven axle (5) of a motor vehicle, comprising at least one electric machine (EM1, EM2) and a switchable transmission (at least one electric machine (EM1, EM2) connected downstream in the direction of force flow during train operation ( 2), which is coupled to a differential (3) for distributing the drive torque to the wheels (4) of the electrically driven axle (5), characterized in that the transmission (2) has a first and a second planetary gear set ( 6, 7), which are connected in series, each comprising a ring gear (8, 12), a sun gear (10, 1 1) and a web (9, 13), the drive of the gear (2) via an external toothing of the Ring gear (8) of the first planetary gear set (6) takes place, the output of the first planetary gear set (6) via the web (9), which is rotatably connected to the sun gear (11) of the second planetary gear set (7), the Sun gear (10) of the first planet gear set (6) can be detachably coupled to a housing (G) via a first switching element (14), the ring gear (12) of the second planetary gear set (7) being coupled to a housing (G), the output of the transmission ( 2) via the web (13) of the second planetary gear set (7) and a second switching element (15) is provided, by the closing of which the first planetary gear set (6) of the transmission (2) can be locked.
2. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs nach Anspruch 1 , dadurch gekennzeichnet, dass das zweite Schaltelement (15) als Schaltelement ausgeführt ist, durch dessen Schließen das Sonnenrad (10) des ersten Planetenradsatzes (6) mit dem Steg (9) des ersten Planetenradsatzes (6) lösbar drehfest verbindbar ist oder durch dessen Schließen das Sonnenrad (10) des ersten Planetenradsatzes (6) mit dem Hohlrad (8) des ersten Planeten radsatzes (6) lösbar drehfest verbindbar ist oder durch dessen Schließen das Hohlrad (8) des ers- ten Planetenradsatzes (6) mit dem Steg (9) des ersten Planetenradsatzes (6) lösbar drehfest verbindbar ist. 2. Drive device (1) for an electrically driven axle (5) of a motor vehicle according to claim 1, characterized in that the second switching element (15) is designed as a switching element, by closing the sun gear (10) of the first planetary gear set (6th ) with the web (9) of the first planetary gear set (6) is detachably connected in a rotationally fixed manner or by closing the sun gear (10) of the first planetary gear set (6) with the ring gear (8) of the first planetary gear set (6) is detachably connected in rotation or by closing the ring gear (8) of the first planetary gear set (6) with the web (9) of the first planetary gear set (6) can be detachably connected in a rotationally fixed manner.
3. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Außenverzahnung des Hohlrades (8) des ersten Planetenradsatzes (6) als Schrägverzahnung ausge- führt ist. 3. Drive device (1) for an electrically driven axle (5) of a motor vehicle according to claim 1 or 2, characterized in that the external toothing of the ring gear (8) of the first planetary gear set (6) is designed as helical teeth.
4. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass das außenverzahnt ausgeführte Hohlrad (8) des ersten Planetenradsatzes (6) durch zwei Lager (19, 20), die jeweils axial betrachtet an den Enden des Hohlrades (8) angeordnet sind, am Steg (9) doppelt gelagert ist. 4. Drive device (1) for an electrically driven axle (5) of a motor vehicle according to claim 1, 2 or 3, characterized in that the externally toothed ring gear (8) of the first planetary gear set (6) by two bearings (19, 20th ), which are each viewed axially at the ends of the ring gear (8), is double-mounted on the web (9).
5. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs nach Anspruch 1 , 2, 3 oder 4, dadurch gekennzeichnet, dass das Getriebe (2) zwei Gänge aufweist, wobei sich der erste Gang wird bei geschlossenem ersten Schaltelement (14) ergibt und wobei sich der zweite Gang bei geschlossenem zwei- ten Schaltelement (15) ergibt. 5. Drive device (1) for an electrically driven axle (5) of a motor vehicle according to claim 1, 2, 3 or 4, characterized in that the transmission (2) has two gears, the first gear being when the first is closed Switching element (14) results and the second gear results when the second switching element (15) is closed.
6. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die zumindest eine Elektromaschine (EM1 , EM2), das Getriebe (2) und das Differen- tial (3) in Reihe quer zur Fahrzeuglängsrichtung angeordnet sind, wobei das Getriebe (2) und das Differential konzentrisch zu einer Abtriebswelle (16) des Differentials (3) angeordnet sind, wobei der Steg (9, 13) und das Sonnenrad (10, 11 ) des ersten und des zweiten Planetenradsatzes (6, 7) hohl ausgeführt sind, so dass die Abtriebswelle (16) des Differentials (3) durch das Getriebe (3) zu einem Rad (4) der elektrisch an- getriebenen Achse (5) geführt wird. 6. Drive device (1) for an electrically driven axle (5) of a motor vehicle according to one of the preceding claims, characterized in that the at least one electric machine (EM1, EM2), the transmission (2) and the differential (3rd ) are arranged in a row transversely to the longitudinal direction of the vehicle, the transmission (2) and the differential being arranged concentrically with an output shaft (16) of the differential (3), the web (9, 13) and the sun gear (10, 11) of the The first and second planetary gear sets (6, 7) are hollow so that the output shaft (16) of the differential (3) is guided through the gear (3) to a wheel (4) of the electrically driven axle (5).
7. Antriebsvorrichtung (1 ) für eine elektrisch angetriebene Achse (5) eines Kraftfahr- zeugs nach Anspruch 6, dadurch gekennzeichnet, dass wenn zwei Elektromaschinen (EM1 , EM2) vorgesehen sind, diese in Fahrzeuglängsrichtung betrachtet hinterei- nander an je einer Seite der Abtriebswelle (16) des Differentials (3) angeordnet sind, wobei deren Längsachsen parallel zur Abtriebswelle (16) des Differentials (3) verlau- fen, wobei wenn eine Elektromaschine vorgesehen ist, deren Längsachse parallel zur Abtriebswelle (16) des Differentials (3) verläuft. 7. Drive device (1) for an electrically driven axle (5) of a motor vehicle according to claim 6, characterized in that when two electric machines (EM1, EM2) are provided, these are viewed one behind the other in the vehicle longitudinal direction on one side of the output shaft (16) of the differential (3) are arranged, the longitudinal axes of which run parallel to the output shaft (16) of the differential (3), and if an electric machine is provided, the longitudinal axis of which runs parallel to the output shaft (16) of the differential (3) .
EP19773758.8A 2018-09-19 2019-09-17 Drive device for an electrically driven axle of a motor vehicle Withdrawn EP3853054A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018215918.1A DE102018215918A1 (en) 2018-09-19 2018-09-19 Drive device for an electrically driven axle of a motor vehicle
PCT/EP2019/074787 WO2020058235A1 (en) 2018-09-19 2019-09-17 Drive device for an electrically driven axle of a motor vehicle

Publications (1)

Publication Number Publication Date
EP3853054A1 true EP3853054A1 (en) 2021-07-28

Family

ID=68062900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19773758.8A Withdrawn EP3853054A1 (en) 2018-09-19 2019-09-17 Drive device for an electrically driven axle of a motor vehicle

Country Status (5)

Country Link
US (1) US11780328B2 (en)
EP (1) EP3853054A1 (en)
CN (1) CN112752666A (en)
DE (1) DE102018215918A1 (en)
WO (1) WO2020058235A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112638686B (en) * 2018-09-11 2023-11-21 沃尔沃建筑设备公司 hub drive system
DE102018221824A1 (en) * 2018-12-14 2020-06-18 Zf Friedrichshafen Ag Gear arrangement for electric vehicle transmissions
CZ202178A3 (en) * 2021-02-21 2022-08-31 Advanced Design Solution s.r.o. Electric drive module for axle drive
CN113022227B (en) * 2021-04-27 2022-06-07 吉林大学 Multi-mode double-motor coupling electric drive axle
DE102021133268A1 (en) * 2021-12-15 2023-06-15 Schaeffler Technologies AG & Co. KG Electrical drive of a vehicle

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59800796D1 (en) 1997-03-12 2001-07-05 Zahnradfabrik Friedrichshafen DRIVE ARRANGEMENT, ESPECIALLY FOR OMNIBUSES
JP3641243B2 (en) * 2002-02-26 2005-04-20 日産自動車株式会社 Hybrid transmission
US6978853B2 (en) * 2003-07-30 2005-12-27 Arvinmeritor Technology Llc Axle assembly with parallel mounted electric motors
KR100771961B1 (en) * 2006-09-11 2007-11-01 우영유압주식회사 Apparatus of axle including compact transmission preventing vehicle from moving backwards on upward slope
JP4973165B2 (en) * 2006-12-08 2012-07-11 トヨタ自動車株式会社 Control device for vehicle drive device
US8112192B2 (en) * 2007-11-04 2012-02-07 GM Global Technology Operations LLC Method for managing electric power within a powertrain system
US8663051B2 (en) 2010-07-14 2014-03-04 E-Aam Driveline Systems Ab Axle assembly with torque distribution drive mechanism
JP2012082930A (en) * 2010-10-14 2012-04-26 Toyota Motor Corp Electric vehicle drive system
JP5495085B2 (en) * 2011-02-28 2014-05-21 アイシン・エィ・ダブリュ株式会社 Electric vehicle drive device
DE102011005531B4 (en) * 2011-03-15 2023-12-14 Zf Friedrichshafen Ag Hybrid drive of a motor vehicle
CN103079872A (en) * 2011-03-31 2013-05-01 爱信艾达株式会社 Drive device for electric vehicle
DE102012212268B4 (en) * 2012-07-13 2021-02-18 Schaeffler Technologies AG & Co. KG Drive system for an electric axle with two-speed gearbox
DE112013005785T5 (en) * 2012-12-05 2015-08-20 Honda Motor Co., Ltd. Vehicle power transmission device
US8998764B2 (en) * 2013-03-13 2015-04-07 E-Aam Driveline Systems Ab Drive module having planetary transmission with nested ring gears
JP6135418B2 (en) * 2013-09-13 2017-05-31 トヨタ自動車株式会社 Power transmission device for hybrid vehicle
DE112015006341A5 (en) * 2015-03-20 2018-01-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft ELECTRIC AXLE DRIVE FOR A MOTOR VEHICLE
DE102015217521A1 (en) * 2015-09-14 2017-03-16 Siemens Aktiengesellschaft Drive device for a motor vehicle, in particular an electric or hybrid vehicle
DE102015016939A1 (en) * 2015-12-24 2017-06-29 Daimler Ag Drive train device with an electric motor
DE102016217550B4 (en) * 2016-09-14 2018-08-23 Magna powertrain gmbh & co kg METHOD FOR IMPROVING THE DRIVING DYNAMICS OF A VEHICLE AND DRIVE DEVICE SUITABLE FOR IMPLEMENTING THE PROCESS
US10253857B2 (en) * 2017-01-31 2019-04-09 Dana Heavy Vehicle Systems Group, Llc Multi-speed electric transaxle unit with co-axial shafts
WO2018156706A1 (en) 2017-02-22 2018-08-30 Dana Heavy Vehicle Systems Group, Llc Commercial vehicle with electric driven axle
US10919385B2 (en) * 2017-02-22 2021-02-16 Dana Heavy Vehicle Systems Group, Llc Continuously variable electric axles with on-demand energy harvesting capabilities for secondary or tag e-axles
CN106965661B (en) * 2017-04-21 2023-04-07 吉林大学 Double-motor coupling drive axle with torque directional distribution function
CN106965659B (en) * 2017-04-21 2023-05-09 吉林大学 Dual-motor coupling drive axle with torque directional distribution function
US11383597B2 (en) * 2017-06-02 2022-07-12 Dana Heavy Vehicle Systems Group, Llc Electric drive unit assembly
JP6518722B2 (en) * 2017-06-19 2019-05-22 本田技研工業株式会社 Power unit support structure
JP2019189051A (en) * 2018-04-25 2019-10-31 トヨタ自動車株式会社 Drive unit for vehicle
US11865908B2 (en) * 2019-07-09 2024-01-09 Hofer Powertrain Innovation Gmbh Dual transmission with triangularly arranged gear center positions
US10989288B1 (en) * 2019-10-07 2021-04-27 Arvinmeritor Technology, Llc Axle assembly having a multi-speed countershaft transmission
EP4086482A4 (en) * 2019-12-30 2023-05-24 Jatco Ltd Power transmission device
US11707981B2 (en) * 2021-06-02 2023-07-25 Dana Automotive Systems Group, Llc Multi-speed transmission system and operating method
CN113635709B (en) * 2021-09-06 2023-10-03 吉林大学 Multi-mode torque vectoring electric drive axle with single actuator
US20230099321A1 (en) * 2021-09-20 2023-03-30 Dana Belgium N.V. Electric driveline system and electric driveline system operating method

Also Published As

Publication number Publication date
US11780328B2 (en) 2023-10-10
WO2020058235A1 (en) 2020-03-26
CN112752666A (en) 2021-05-04
DE102018215918A1 (en) 2020-03-19
US20210347253A1 (en) 2021-11-11

Similar Documents

Publication Publication Date Title
WO2020058235A1 (en) Drive device for an electrically driven axle of a motor vehicle
EP2146860B1 (en) Variable ratio transmission for distributing a drive torque to at least two output shafts
DE102005022528B4 (en) Vehicle powertrain with two-wheel and four-wheel drive ratios
DE102005049706A1 (en) transmission device
EP3710295B1 (en) Drive device for a vehicle axle of a two-track vehicle
DE102005007650A1 (en) Differential gear for vehicle, has output shafts connected by gear unit which is connected with drive source such that predefined distribution degree of torque between output shafts is changed based on torque generated by drive source
EP1855934A1 (en) Drive system for individually driving two drive wheels of a drive wheel pair
DE102019119954B4 (en) Drive device for a motor vehicle with a common rigid ring gear and a common rigid planet carrier
DE102016221796B4 (en) Hybrid transmission and hybrid powertrain
WO2020007675A1 (en) Drive device for at least one electrically driven axle of a motor vehicle
WO2020058109A1 (en) Drive device for an electrically driven axle of a motor vehicle
WO2020244703A1 (en) Electric axle drive unit having a two-gear transmission device; and motor vehicle
DE102011005615A1 (en) Driving device for driving driven vehicle axle, has two planetary gear sets comprising webs connected to wheel of driven vehicle axle, for providing output of drive device
WO2019091746A1 (en) Drive device for a vehicle axle of a two-track vehicle
WO2005033555A1 (en) Gearbox for distributing a drive torque between two output shafts
EP4105519A1 (en) Transmission and agricultural or industrial utility vehicle
DE102021208545A1 (en) Transmission for a vehicle and drive train with such a transmission
DE102018128525B4 (en) Motor vehicle transmission for a hybrid powertrain and hybrid powertrain
DE102013212610B4 (en) transfer case
EP1199237B1 (en) Transmission for a rail vehicle
DE102014201256B4 (en) Center differential for a motor vehicle
DE102021004159B3 (en) Electric drive device for a motor vehicle, in particular for a motor vehicle
DE102022201321B4 (en) Transmission for a vehicle
DE102021208546B3 (en) Power train for a vehicle with a torque vectoring superimposition unit
WO2024074312A1 (en) Transmission for a vehicle, and powertrain comprising such a transmission

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210311

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20211110