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WO2011069821A1 - Boîte de vitesses d'un véhicule automobile avec un différentiel réglable - Google Patents

Boîte de vitesses d'un véhicule automobile avec un différentiel réglable Download PDF

Info

Publication number
WO2011069821A1
WO2011069821A1 PCT/EP2010/068075 EP2010068075W WO2011069821A1 WO 2011069821 A1 WO2011069821 A1 WO 2011069821A1 EP 2010068075 W EP2010068075 W EP 2010068075W WO 2011069821 A1 WO2011069821 A1 WO 2011069821A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor vehicle
vehicle transmission
housing
actuating
transmission according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2010/068075
Other languages
German (de)
English (en)
Inventor
Frederik Ernst Carel Van Der Hardt Aberson
Klaus Mueller
Uwe Firzlaff
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
Priority to EP10784760.0A priority Critical patent/EP2510260B1/fr
Priority to CN201080053570.7A priority patent/CN102713358B/zh
Priority to US13/511,420 priority patent/US8840515B2/en
Publication of WO2011069821A1 publication Critical patent/WO2011069821A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
    • B60K17/20—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing in which the differential movement is limited
    • 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
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2071—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using three freewheel mechanism
    • 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
    • F16H48/20—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
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • F16H48/32—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators

Definitions

  • the invention relates to a motor vehicle transmission with a main chamber, in which a rotation of an input shaft translates to a main shaft is connected, which is connected to a housing of a differential gear in connection, via the housing driven two driven wheels and thereby different rotational speeds of the driven wheels represented by compensating elements of the differential gear and between one of the two output gears and the housing, a frictional clutch is provided which has a, associated with the housing first side and a, connected to the respective output gear second side, which can be brought into contact by a pressure build-up in an actuating chamber are to couple the respective output gear to the housing of the differential gear.
  • transmissions are usually used to translate the rotational speeds and torques provided by the internal combustion engine as a function of the respective driving range into suitable rotational speeds and torques for the propulsion of the motor vehicle.
  • these translated speeds and torques must be transmitted at least to an axis of the motor vehicle, the available power must therefore be distributed at least on a left and a right drive wheel.
  • the use of a common drive shaft for both drive wheels would bring the problem that when driving through curves, a tension of the drive train and high wear and load of the wheels would occur because the outside wheel has to travel a greater distance than the inside of the curve.
  • a so-called differential gear is usually provided between the motor vehicle transmission and axle shafts of the drive wheels, which a compulsory speed and force balance between the axle shafts of the Driving wheels allows.
  • the coming of the motor vehicle transmission power is transmitted to a housing of the differential gear and divided by this with the aid of balancing elements on two arranged within the housing output wheels, which are in each case in communication with the axle shafts.
  • the compensation elements in this case run together with the housing of the differential gear as a block and distribute the power provided by the motor vehicle transmission power evenly on the two output gears and thus axle shafts.
  • a compensating movement of the compensation elements is initiated within the housing to allow different speeds of the two output shafts.
  • the effect of the differential gear has the decisive disadvantage that the propulsive forces which can be transmitted to the road surface are dependent on the respective lower traction potential for different traction potentials of the two driving wheels. In extreme cases, this leads to the fact that in a spinning drive wheel by the other wheel no higher torque can be transmitted as by the spinning, the motor vehicle can not be driven or only to a very limited extent.
  • locking devices are usually provided in the region of the differential gear in order to completely prevent or at least hinder a compensation movement of the compensation elements of the differential gear.
  • a differential gear in which via a housing by means provided within the housing compensation elements driven wheels are driven, with different rotational speeds of the driven wheels can be represented by appropriate compensatory movements of the compensation elements.
  • a force-locking coupling between one of the output gears and the housing is provided. ment provided, which couples directly upon actuation of this output gear with the housing, thereby ensuring a speed equalization between the housing and the driven gear.
  • a rigid coupling of the output gear with the housing causes the compensating elements entrainment of the other output gear at the same speed and thus enforces a uniform distribution of power on both wheels.
  • an actuating chamber is provided in the region thereof, which is limited by a rest and working part and is filled with a hydraulic fluid.
  • the working part With a pressure build-up in this actuation chamber, the working part is displaced in the direction of the force-locking coupling and transmits this movement by means of intermediate elements on one of the two sides of the coupling, which causes their closure.
  • opening of the coupling is achieved by a return movement of the working part by means of spring elements arranged in this area.
  • such a differential gear can be arranged directly in a main chamber of the motor vehicle transmission, in particular in front-wheel drive motor vehicles, wherein a drive of the housing of the differential gear in this case takes place via a main shaft.
  • a rotational movement of the main shaft is caused by the translated transmission of rotation of an input shaft also arranged in the main chamber.
  • the invention includes the technical teaching that the actuating chamber is placed completely separate from the main chamber, wherein in the region of the differential gear and between the main and actuating chamber an impermeable membrane is provided as a separation that undergoes a change in shape in a pressure build-up in the actuation chamber and this over an actuator actuates the clutch. Due to the complete separation of actuating and main chamber mixing of the hydraulic oil with the transmission oil of the main chamber can be completely excluded and consequently a resulting deterioration of the shift quality can be prevented. At the same time can be accomplished by means of the diaphragm and the intermediate actuator reliably controlling the clutch to bridge the action of the differential gear.
  • the actuating device comprises a piston, which is biased by a spring element against the side facing away from the actuating chamber of the membrane and converts the change in shape of the membrane in a translational movement for actuating the clutch.
  • a bearing, a thrust washer and a plurality of pressure bolts are connected downstream of the piston, wherein the latter in the translational movement of the piston by displacement with the pressure plate facing away from the ends of one of the two sides of the clutch in contact.
  • the actuating chamber can be placed in the region of the one driven wheel, while the coupling is provided in the region of the other driven wheel.
  • the pressure pins can be passed through the housing of the differential gear due to the placement between the piston and them and placed in rotation with this, which allows a compact design.
  • a uniform pressing of the thrust bolts on one side of the clutch can be achieved during a translational movement of the piston.
  • the bearing is designed in the manner of an axial needle bearing.
  • this can be achieved by a very compact and reliable design of a thrust bearing.
  • the pressure pins are biased by springs against the pressure plate. As a result, the pressure bolts reliably move back into their initial position during a return movement of the piston, whereby a normal operation of the differential gear is ensured.
  • the spring element is formed in the region of the piston in the manner of a plate spring.
  • the membrane is secured by clamping rings between the main and actuating chamber.
  • the membrane is thereby reliably held in position and thus guarantees on the one hand a reliable separation of the main chamber from the actuating chamber and on the other hand enables the actuation of the coupling.
  • retaining rings hold the clamping rings indirectly or directly in position.
  • the coupling is designed in the manner of a multi-plate clutch.
  • a very compact design of the clutch can be achieved, while depending on the contact force of the slats together by forming a slip and a conditional coupling of the housing with the driven wheel can be displayed.
  • the differential gear is designed in the manner of a bevel gear differential.
  • the membrane consists of a polymer material.
  • FIG. 2 shows a perspective detailed view in the region of a differential gear of the motor vehicle transmission according to the invention.
  • FIG 1 is a highly schematic view of the motor vehicle transmission according to the invention can be seen, in the transmission housing 1 by a partition wall 2, a main chamber 3 and an actuating chamber 4 are defined.
  • an input shaft 5 is provided, which is in communication with a - not shown here - engine and transmits its rotation by selecting one of a plurality of gear pairs 6A-6C with a corresponding gear ratio to a main shaft 7.
  • These Main shaft 7 in turn is connected via a drive set 8 with the housing 9 of a differential gear 10, wherein this area is shown in Figure 1 only as a black box.
  • the region of the differential gear 10 is shown in more detail as a sectional view. It can be seen that the housing 9 of the bevel gear differential designed as differential gear 10 in its interior via balancing elements 1 1 has, on the rotation of the housing 9, the rotational movement is transmitted to two output gears 12A and 12B. By a compensating movement of the compensating elements 1 1, different rotational speeds between the two driven wheels 12A and 12B can be represented in a manner known to those skilled in the art. However, in order to deliberately prevent them in certain driving situations, a clutch 13 is placed between the output gear 12B and the housing 9, whose first side is connected to the housing 9 and whose second side is connected to the output gear 12B.
  • the translational movement of the piston 17 is caused by a targeted pressure build-up in the actuating chamber 4 by hydraulic fluid.
  • a membrane to completely separate the actuating chamber 4 in this case and to escape of hydraulic fluid from the actuating chamber 4 to prevent is between the piston 17 and the actuating chamber 4 is a membrane
  • a plate spring 23 is placed, which biases the piston 17 against the membrane 18.
  • FIG. 3 further shows a highly schematic view of the region from FIG. From this view, it can further be seen that in the region of a pressure bolt 14A, a respective spring 24 is provided, which biases the associated pressure pin 14A against the pressure plate 15 and accordingly ensures a downward pressure in the actuating chamber 4 for opening the clutch 13.
  • the inventive design of a motor vehicle transmission it is accordingly possible to integrate a differential gear 10 with a locking device in the form of a clutch 13 in the main chamber 3 and simultaneously to prevent mixing of the hydraulic fluid from the actuating chamber 4 with the transmission oil located in the main chamber 3.

Landscapes

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

Abstract

L'invention concerne la boîte de vitesses d'un véhicule automobile avec un compartiment principal (3), dans lequel une rotation d'un arbre primaire (5) peut être transmise après démultiplication à un arbre secondaire (7) qui se trouvent en liaison avec un carter (9) d'un différentiel (10), deux pignons d'entraînement (12A, 12B) pouvant être entraînés par l'intermédiaire du carter (9) et ce faisant, différentes vitesses de rotation des pignons d'entraînement (12A, 12B) étant réalisables par des satellites (11) du différentiel (10). Un embrayage (13) est prévu entre un des pignons d'entraînement (12A, 12B) et le carter (9) du différentiel (10), embrayage qui comporte un premier côté en liaison avec le carter (9) et un deuxième côté en liaison avec le pignon d'entraînement (12B), lesquels peuvent être mis en contact l'un avec l'autre par l'élaboration d'une pression dans une chambre d'actionnement (4) pour solidariser le pignon d'entraînement (12B) avec le carter (9) du différentiel (10). En outre la chambre d'actionnement (4) est disposée de manière totalement séparée du compartiment principal (3), un diaphragme (18) imperméable étant prévu comme séparation dans la zone du différentiel (10) entre la chambre principale (3) et la chambre d'actionnement (4), diaphragme qui subit un changement de forme lors de l'élaboration de la pression dans la chambre d'actionnement (4) et actionne ainsi l'embrayage (13) par l'intermédiaire d'un dispositif d'actionnement.
PCT/EP2010/068075 2009-12-09 2010-11-24 Boîte de vitesses d'un véhicule automobile avec un différentiel réglable Ceased WO2011069821A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10784760.0A EP2510260B1 (fr) 2009-12-09 2010-11-24 Boîte de vitesses d'un véhicule automobile avec un différentiel réglable
CN201080053570.7A CN102713358B (zh) 2009-12-09 2010-11-24 具有可调节的差速器的汽车变速器
US13/511,420 US8840515B2 (en) 2009-12-09 2010-11-24 Motor vehicle transmission having a controllable differential

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047749A DE102009047749A1 (de) 2009-12-09 2009-12-09 Kraftfahrzeuggetriebe mit regelbarem Differential
DE102009047749.7 2009-12-09

Publications (1)

Publication Number Publication Date
WO2011069821A1 true WO2011069821A1 (fr) 2011-06-16

Family

ID=43530210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068075 Ceased WO2011069821A1 (fr) 2009-12-09 2010-11-24 Boîte de vitesses d'un véhicule automobile avec un différentiel réglable

Country Status (5)

Country Link
US (1) US8840515B2 (fr)
EP (1) EP2510260B1 (fr)
CN (1) CN102713358B (fr)
DE (1) DE102009047749A1 (fr)
WO (1) WO2011069821A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222282A1 (de) 2015-11-12 2017-05-18 Tesa Se Klebeband und seine Verwendung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102162436B1 (ko) * 2013-05-14 2020-10-06 지케이엔 드라이브라인 노쓰 아메리카, 인코포레이티드 차량 차동장치 차단 조립체
CN204420041U (zh) 2013-08-07 2015-06-24 伊顿公司 差速齿轮组件
CN103939570A (zh) * 2014-04-25 2014-07-23 徐工集团工程机械股份有限公司 液压式防滑自锁差速器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157442B (de) * 1958-02-17 1963-11-14 Schwitzer Corp Fluessigkeitskupplung
DE3829701A1 (de) 1987-09-05 1989-03-23 Zahnradfabrik Friedrichshafen Differentialgetriebe mit einer lamellenkupplung als sperrkupplung
US5066268A (en) * 1989-02-28 1991-11-19 Fuji Jukogyo Kabushiki Kaisha Torque distribution control system for a four-wheel drive motor vehicle
US5149307A (en) * 1991-10-15 1992-09-22 General Motors Corporation Multispeed power transmission
US20080242469A1 (en) * 2007-03-26 2008-10-02 Randy's Ring & Pinion Lockable differentials

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636175A1 (de) * 1986-10-24 1988-04-28 Bayerische Motoren Werke Ag Sperrbares ausgleichsgetriebe
JPH09144840A (ja) * 1995-11-17 1997-06-03 Tochigi Fuji Ind Co Ltd デファレンシャル装置
DE19716386C2 (de) * 1996-04-19 2002-10-31 Tochigi Fuji Sangyo Kk Ausgleichsgetriebe
JPH1047385A (ja) * 1996-07-30 1998-02-17 Zexel Corp 回転速度差感応型継手
JP2003254415A (ja) * 2002-02-28 2003-09-10 Komatsu Ltd クラッチ式リミテッドスリップデフ
CN2666718Y (zh) * 2003-10-31 2004-12-29 王宗成 由液力驱控的离合器组片式防滑差速器
CN201281119Y (zh) * 2008-07-28 2009-07-29 湖北三江航天万山特种车辆有限公司 摩擦片离合式限滑差速器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157442B (de) * 1958-02-17 1963-11-14 Schwitzer Corp Fluessigkeitskupplung
DE3829701A1 (de) 1987-09-05 1989-03-23 Zahnradfabrik Friedrichshafen Differentialgetriebe mit einer lamellenkupplung als sperrkupplung
US5066268A (en) * 1989-02-28 1991-11-19 Fuji Jukogyo Kabushiki Kaisha Torque distribution control system for a four-wheel drive motor vehicle
US5149307A (en) * 1991-10-15 1992-09-22 General Motors Corporation Multispeed power transmission
US20080242469A1 (en) * 2007-03-26 2008-10-02 Randy's Ring & Pinion Lockable differentials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222282A1 (de) 2015-11-12 2017-05-18 Tesa Se Klebeband und seine Verwendung
EP3173452A1 (fr) 2015-11-12 2017-05-31 tesa SE Bande adhésive et son utilisation
US10858209B2 (en) 2015-11-12 2020-12-08 Tesa Se Adhesive tape and its use

Also Published As

Publication number Publication date
DE102009047749A1 (de) 2011-06-16
US8840515B2 (en) 2014-09-23
CN102713358A (zh) 2012-10-03
US20120289373A1 (en) 2012-11-15
CN102713358B (zh) 2015-03-25
EP2510260B1 (fr) 2013-10-09
EP2510260A1 (fr) 2012-10-17

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