EP2021657A1 - Unité de transmission destinée à transmettre un couple d'entraînement d'un arbre d'entrée à deux arbres de sortie - Google Patents

Unité de transmission destinée à transmettre un couple d'entraînement d'un arbre d'entrée à deux arbres de sortie

Info

Publication number
EP2021657A1
EP2021657A1 EP07729515A EP07729515A EP2021657A1 EP 2021657 A1 EP2021657 A1 EP 2021657A1 EP 07729515 A EP07729515 A EP 07729515A EP 07729515 A EP07729515 A EP 07729515A EP 2021657 A1 EP2021657 A1 EP 2021657A1
Authority
EP
European Patent Office
Prior art keywords
differential
transmission
unit
torque
output shaft
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Withdrawn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
EP07729515A
Other languages
German (de)
English (en)
Inventor
Alois BÖCK
Detlef Baasch
Robert Peter
Florian Knedler
Michael Donaubauer
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 Friedrichshafen AG
Original Assignee
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 Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP2021657A1 publication Critical patent/EP2021657A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
    • F16H48/11—Differential gearings with gears having orbital motion with orbital spur gears having intermeshing planet gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/295—Arrangements for suppressing or influencing the differential action, e.g. locking devices using multiple means for force boosting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0483—Axle or inter-axle differentials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H2048/204—Control of arrangements for suppressing differential actions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
    • F16H2048/343—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators using a rotary motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
    • F16H2048/423—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0401—Features relating to lubrication or cooling or heating using different fluids, e.g. a traction fluid for traction gearing and a lubricant for bearings or reduction gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0409—Features relating to lubrication or cooling or heating characterised by the problem to increase efficiency, e.g. by reducing splash losses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
    • F16H57/0454—Sealings between different partitions of a gearing or to a reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0473—Friction devices, e.g. clutches or brakes

Definitions

  • Gear unit for guiding a drive torque from a drive shaft to two output shafts
  • the invention relates to a Getriebeeinheif for guiding a drive torque from a drive shaft to two output shafts according to the closer defined in the preamble of claim 1.
  • each output shaft is assigned a so-called torque vectoring unit.
  • torque vectoring units a uniform distribution of the drive torque to the output shafts performed by a differential unit can be converted into an unequal torque distribution between the two output shafts which is advantageous, for example, during cornering.
  • the gear units known from practice in this case have a common oil chamber for both the differential unit and for the two torque vectoring units.
  • both the differential unit and the torque vectoring units have to work with the located in the common oil chamber oil in such a designed transmission unit.
  • the choice of an optimum oil for the particular application can thus not disadvantageously take place.
  • the present invention has for its object to make a transmission unit of the type mentioned in such a way that both for the differential unit and for the torque vectoring units each one optimally suitable oil can be used and the components of the gear unit can be mounted in a simple and secure manner,
  • a transmission unit in particular a Schuachsgetriebeiki, provided for guiding a drive torque from a drive shaft to two output shafts via a differential unit and a switchable by means of at least one motor, continuously adjustable device for influencing the degree of distribution of the drive torque to the output shafts, wherein the differential unit is a differential and having an operatively connected to the drive shaft Oifferenzialkorb and wherein the device for influencing the degree of distribution of the drive torque with two torque vectoring units, one of which is assigned to a respective output shaft is formed.
  • the invention provides that both a differential unit comprising the oil chamber and a respective Torque vectoring Einheif comprehensive oil space are formed as each separately sealed oil chambers.
  • transmission unit can be selected in an advantageous manner by the separation of the oil chambers of the differential unit and the torque vectoring units, the optimum oil for the respective requirements, whereby the operating characteristics and the life of the components can be improved.
  • a simple separation of the oil chambers for the differential unit and the torque vectoring units can be achieved in that between the oil chamber of the differential unit and the respective oil chamber of the torque converter Vectoring-Einheifen two radially spaced from each other arranged seals are provided, wherein a first, radially with respect to an output shaft inner seal between a differential cage of the differential unit and the respective output shaft is arranged.
  • the first, radially inner seal can be in a region remote from the transmission center axis next to a bevel gear connected to the respective output shaft of a differential of the differential unit and at least approximately in an axial range as a first inner sun gear of the respective torque vectoring unit may be arranged.
  • the arrangement of the first, radially inner seal in the axial region of the first inner sun gear is advantageous, since a space extension of the gear unit can thereby be avoided. Furthermore, a simple assembly of the first, inner seal is ensured by the seat of the first, radially inner seal on one of the transmission center axis remote end of the differential cage, and the bearing seat of the output shaft in the differential cage can be lubricated with the oil from the oil chamber of the differential unit.
  • a particularly favorable arrangement of a second, radially outer seal in the transmission unit can be achieved in that the second, radially outer seal at a periphery of the differential cage of the differential unit between the differential cage and a transmission housing and in the direction of the longitudinal axis of the output shafts between the with the respective Output shaft connected bevel gear of the differential of the differential unit and the first sun gear of the respective torque vectoring unit is arranged.
  • each output shaft is connected to the differential.
  • a particularly good torque distribution can be achieved in that the relative to a transmission center axis at least approximately symmetrically arranged torque vectoring units each have a translation stage, which are operatively connected to the differential cage and the associated output shaft, wherein the at least one translation stage with the non-rotating, with respect the transfer capability continuously adjustable, in particular frictional switching element of the respective torque vectoring unit is connectable, and wherein the transmission capability of the respective switching element via at least one motor is adjustable.
  • the switching elements can simply be designed as disc brakes, wherein the respective disc brake can be actuated by means of an operable by the at least one motor for axial adjustment. It can be provided that the drive shaft of the motor interacts with a swivel wheel of the device for axial adjustment wherein the swivel wheel by means of rolling elements formed in particular as balls, which in depth-varying grooves of the swivel wheel and in correspondence dierend arranged grooves of a housing-fixed ball ramp disc of the means for axial adjustment are cooperating with the ball ramp disc.
  • FIGURE of the drawing shows a partially sectional schematic representation of a rear axle gear unit of a motor vehicle with a differential unit and a torque vectoring unit, wherein the Schuachsgetriebeiki for the differential unit and the torque vectoring unit is formed with separate oil chambers,
  • a portion of a transmission unit 1 which comprises a drive torque transmitted from a drive machine 10 shown only schematically to a first output shaft 3 and one coaxial thereto and symmetrical with respect to the input shaft 2 arranged second output shaft 5 distributed.
  • the gear unit 1 is provided for installation in a motor vehicle and is designed in the embodiment shown as Schuachsgetriebetician, but it is also conceivable that a substantially analog gear unit is used as Vorderachsgetriebetician. It is also conceivable to use the present transmission unit both as a front axle transmission unit and as a rear axle transmission unit, for example in a four-wheel drive motor vehicle.
  • the Abfriebswellen 3 and 5, which are rotatably mounted about a common longitudinal axis X are connected at their free ends in each case with a not-shown vehicle wheel, wherein viewed in the installed state of the Schuachsgetriebeiki 1 a vehicle wheel with respect to the first output shaft 3 on a vehicle in the front direction left transmission side 7 and a vehicle wheel with respect to the second output shaft 5 on a right transmission side 9 is located.
  • the Hinterachsgetriebetician 1 is arranged in a transmission housing 11, which with a substantially surrounding the drive shaft 2 front gear housing part 12 with one of the left side gear 7 associated side gear housing part 13, from which the first output shaft 3 protrudes laterally, and with a non-illustrated Right transmission side 9 associated lateral gear housing part, from which the second output shaft 5 projects laterally, is formed.
  • the rear axle transmission unit 1 distributes the drive torque transmitted from the drive shaft 2 to the two output shafts 3 and 5 and can thereby also effect an uneven torque distribution on the two output shafts 3 and 5 and thus actively improve the driving characteristics.
  • the drive torque is introduced from the drive shaft 2 in a differential unit 15 which is formed with a differential 17 and a differential cage 19 and connected to a device 14 for influencing the drive torque to the output shafts 3 and 5.
  • the differential 17 is in a known construction with two with the respective output shaft 3 and 5 allied nen output side bevel gears 25 and 27 and formed with two with the two bevel gears 25 and 27 meshing drive side bevel gears 29 and 31.
  • the two drive-side bevel gears 29 and 31 are fixedly arranged on a bolt 33 which is fixed in the differential cage 19 with respect to a rotation about the longitudinal axis X.
  • the figure of the drawing shows two embodiments of the drive side bevel gears 29 and 31 and the cooperating output side bevel gears 27 and 25, which are each engaged with each other and between which the expert can select an alternative according to the particular application.
  • a drive torque is transmitted by the internal combustion engine 10 via the drive shaft 2, this is transmitted via the drive pinion 21 to the ring gear 23 and the differential cage 19 firmly connected thereto.
  • the drive torque is transmitted to the drive-side bevel gears 29 and 31 of the differential 17, which in turn guide the drive torque to the driven-side bevel gears 25 and 27 of the differential 17 and thus the output shafts 3 and 5 drive.
  • the device 14 is provided for influencing the drive torque on the output shafts 3 and 5 with two symmetrically arranged to the transmission center axis Y identically constructed torque vectoring units, of the two torque vectoring units only the left transmission side 7 associated Torque- Vectoring unit 35 is shown, which will be described below.
  • the torque vectoring units are arranged in the gear housing 11 and are in the present case continuously adjusted and actuated by a respective, switchable electric motor 37.
  • this has a planetary gear set formed as a translation stage 39 and an actuatable by the electric motor 37 brake device 51, wherein the translation stage 39 is formed with two sun gears 61 and 63, one of which first sun gear 61 fixed to the differential cage 19 and of which a second sun gear 63 is fixedly connected to the output shaft 3
  • the sun gears 61 and 63 cooperate with three present planetarily mounted on a planetary carrier 65 planet, of which two planets 69 and 71 are visible, and which have a continuous toothing 73,
  • the brake device 51 is designed with a designed as a multi-disc brake 77 switching element and a cooperating with the switching device 87 for axial adjustment, the continuously variable with respect to their transfer disc brake 77 has arranged on the planet carrier 65 inner fins 75, which are fixed in the transmission housing 1 1 outer plates 79 cooperate by their axial adjustability such that they can be brought into a frictional contact or from a frictional contact.
  • the electric motor 37 actuates the axial adjustment device 87, which is designed with a swivel wheel 89 and a ball ramp disk 91 in the present case via an intermediate gear 85 which is driven by its drive shaft 83 and is fixedly mounted on the gear housing 85, which engages on one side with the drive shaft 83 of the electric motor 37 and on the other side with the swivel wheel 89 of the axial adjustment device 87.
  • the intermediate gear 85 serves to set a gear ratio between the electric motor 37 and the swing gear 89, which is determined by a number of teeth of the electric motor 37 and a number of teeth of the pivot wheel 89, and to bridge the distance of the electric motor 37 from the longitudinal axis X, wherein the distance is bridged in particular by the diameter of the intermediate gear 85.
  • the ball ramp disk 91 which rotatably and axially displaceably mounted in the gear housing 11 and how the pivot wheel 89 is disposed about the output shaft 3, has distributed over its radius three in depth varying grooves 93.
  • grooves 93 of the ball ramp disc 91 corresponding also varying in their depths grooves 95 of the pivot wheel 89 are three trained as balls 97 rolling elements, which results in a caused by the electric motor 37 turning the pivot wheel 89 axial movement of the ball ramp disk 91, so that in an axial movement in the direction of the Y-axis, the housing-fixed outer disk 79 after overcoming a clearance of the device for axial position 87 with the inner disk 75 of the brake device 51 make a frictional connection.
  • the transfer stage 39 runs without torque transfer about the longitudinal axis X in the block. Is via the electric motor 37, a friction joint in the Slotted brake 77 triggered, it is generated from the drive torque acting on the respective output shaft 3 and 5 Torque vectoring torque, this is done by a support of the planet carrier 65 via the brake device 51 in the gear housing 11. It is thus a torque transmission of the Drive shaft 2 via the differential cage 19 and from there by means of the planet carrier 65 of the first sun gear 61 to the respective connected to the output shaft 3 and 5 second sun gear 63, by means of which a different torque distribution to the first and left output shaft 3 and the second or right output shaft 5 can be achieved.
  • the transmission unit 1 has within the transmission housing 11 three separately sealed oil chambers 120, 122, 124, wherein the sealing of the oil spaces 120, 122, 124 with each other between the gear housing 11, the differential cage 19 and the output shafts 3, 5 takes place.
  • a first, radially with respect to the first output shaft 3 inner sealing ring 116 is disposed between the differential cage 19 of the Differenzialeinheif 15 and the first output shaft 3.
  • the first, radially inner sealing ring 116 has approximately the same distance from the transmission center axis Y as the first sun gear 61.
  • the first, radially inner seal if required by a person skilled in the art instead of being arranged in the vicinity of the first sun gear and in a region remote from the transmission center axis region adjacent to the bevel gear of the differential connected to the respective output shaft. It is also possible to arrange the first radially inner seal in an area therebetween.
  • a second outer sealing ring 118 arranged on the circumference of the differential cage 19 between the differential cage 19 and the transmission housing 11 is arranged between the first sun gear 61 and the driven-side bevel gear 25 connected to the output shaft 3 from the transmission center axis Y.
  • each oil chamber 122 or 124 associated with a torque vectoring unit is sealed with respect to the outside of the transmission by a further sealing ring, of which the relevant sealing ring 128 seals the oil chamber 122 of the first torque ring.
  • Vectoring unit 35 is shown relative to the gear outer. In the exemplary embodiment shown, this sealing ring 128 is arranged between the transmission housing 11 and the first output shaft 3 in the region of its exit from the transmission housing 11.
  • the oils used can thus be selected according to the respective requirements in the oil chambers 120, 122, 124, for example a hypoid oil for the differential unit and a thin-fluid oil for the torque vectoring units 35 in favor of low drag losses or an oil for optimizing the Friction values within the multi-disc brake.
  • the figure of the drawing also shows a formed with a locking ring 126 axial securing the Ab ⁇ riebswelle, which is arranged shifted relative to conventional solutions on the first output shaft 3 in the direction of the left side gear 7.
  • the axial securing 126 is in the direction of the longitudinal axis X of the output shaft 3 in a region which of
  • the first, radially inner seal 116 facing away from the transmission center 8 arranged and has approximately the same distance from the transmission axis Y as the second sun gear 63 of the translation stage 39 on.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne une unité de transmission, notamment une unité de transmission à l'essieu arrière, destinée à transmettre un couple d'entraînement d'un arbre d'entrée (2) à deux arbres de sortie (3, 5) au moyen d'une unité de différentiel (15) et d'un dispositif (14) à réglage continu pouvant être actionné par au moins un moteur (37), destiné à influencer le degré de répartition du couple d'entraînement sur les arbres de sortie (3, 5). L'unité de différentiel (15) comporte un différentiel (17) et un carter de différentiel (19) connecté activement à l'arbre d'entrée (2). Le dispositif (14) destiné à influencer le degré de répartition du couple d'entraînement comporte deux unités à vecteur de couple (35) dont une est respectivement affectée à un arbre de sortie (3 ou 5). Selon l'invention, une chambre d'huile (120) contenant l'unité de différentiel (16) et une chambre d'huile (122, 124) contenant respectivement une unité à vecteur de couple (35) sont conçues en tant que chambres d'huile (120, 122, 124) étanchées de façon respectivement séparée.
EP07729515A 2006-05-30 2007-05-25 Unité de transmission destinée à transmettre un couple d'entraînement d'un arbre d'entrée à deux arbres de sortie Withdrawn EP2021657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610025058 DE102006025058A1 (de) 2006-05-30 2006-05-30 Getriebeeinheit zur Führung eines Antriebsmomentes von einer Antriebswelle auf zwei Antriebswellen
PCT/EP2007/055086 WO2007138005A1 (fr) 2006-05-30 2007-05-25 Unité de transmission destinée à transmettre un couple d'entraînement d'un arbre d'entrée à deux arbres de sortie

Publications (1)

Publication Number Publication Date
EP2021657A1 true EP2021657A1 (fr) 2009-02-11

Family

ID=38421637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07729515A Withdrawn EP2021657A1 (fr) 2006-05-30 2007-05-25 Unité de transmission destinée à transmettre un couple d'entraînement d'un arbre d'entrée à deux arbres de sortie

Country Status (3)

Country Link
EP (1) EP2021657A1 (fr)
DE (1) DE102006025058A1 (fr)
WO (1) WO2007138005A1 (fr)

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RU2397390C1 (ru) * 2008-12-31 2010-08-20 Виктор Михайлович Кузеванов Дифференциал
DE102009012256A1 (de) * 2009-03-07 2010-09-09 Schaeffler Technologies Gmbh & Co. Kg Antriebsvorrichtung für ein Elektrofahrzeug
DE102009046423B4 (de) 2009-11-05 2024-01-11 Robert Bosch Gmbh Verfahren zum Betreiben eines Fahrzeugs sowie Fahrzeug
US10808830B2 (en) * 2018-11-30 2020-10-20 Arvinmeritor Technology, Llc Axle assembly with multiple lubricant chambers
CN113090725B (zh) * 2019-06-20 2022-09-27 成都中良川工科技有限公司 一种回转传动装置及传动方法

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