EP1888392A1 - Systeme d'entrainement electrique a direction a glissement pour un vehicule a moteur, unite transmission et vehicule a moteur correspondant - Google Patents

Systeme d'entrainement electrique a direction a glissement pour un vehicule a moteur, unite transmission et vehicule a moteur correspondant

Info

Publication number
EP1888392A1
EP1888392A1 EP06754183A EP06754183A EP1888392A1 EP 1888392 A1 EP1888392 A1 EP 1888392A1 EP 06754183 A EP06754183 A EP 06754183A EP 06754183 A EP06754183 A EP 06754183A EP 1888392 A1 EP1888392 A1 EP 1888392A1
Authority
EP
European Patent Office
Prior art keywords
gear
hollow shaft
drive machine
shaft
electric drive
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Withdrawn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
EP06754183A
Other languages
German (de)
English (en)
Inventor
Ralf Boss
Hans-Peter Freudenreich
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 EP1888392A1 publication Critical patent/EP1888392A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/04—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides

Definitions

  • the invention relates to an electric drive system for a vehicle with slip-lock according to the preamble of the main claim, a transmission unit of such a drive system and a vehicle equipped therewith.
  • Rolling stock vehicles are tracked vehicles or wheeled vehicles in which the curve-inner chain or the inner drive wheels are slowed down in relation to the curve-outer chain or the outer drive wheels for cornering. Especially with heavy tracked vehicles, this requires considerable braking power at the inside of the bend.
  • each of the two chains is assigned its own electric drive system, with no mechanical drive connection therebetween.
  • the power transmission between left and right side takes place exclusively by electrical means, which allows a space-saving arrangement of the drive elements, but a correspondingly powerful electrical see plant and powerful electric drive machines required.
  • EP 0 304 594 likewise shows a diesel-electric drive system which also has a mechanical superposition steering gear. For driving and steering drive in each case an electric drive motor of different sizes is provided. In this drive system, the power transmission between the left and right sides takes place exclusively mechanically.
  • WO 02/083483 A shows a drive system in which similar electric traction drive machines are arranged on each side and in which, moreover, a central third electric motor is provided as the steering motor.
  • the US 5,445,234 shows a drive system for a vehicle with anti-slip steering with a left and a similar right electric drive machine.
  • both electric drive machines serve both as a driving and as a steering drive at the same time.
  • the full installed electric drive power is available for straight ahead driving.
  • the power transmission between the left and right side takes place partly mechanically and partly electrically.
  • On each side of a designed as a planetary gear summation gear is arranged.
  • the planet carriers of these two summation gears form the two power take-offs which act on the caterpillars.
  • the sun gear of the left summation gear is a spur gear from the left prime mover and the sun gear of the right Summ réellesgetriebes via a spur gear from the right Drive machine driven.
  • the two ring gears of the left and right summation are connected by a connecting shaft torsionally rigid with each other.
  • a gear train is arranged between the sun gear of the left summation gear and the sun gear of the right summation gear, which also couples the two drive machines together.
  • WO 2005/039958 A1 shows an electric drive system for a vehicle with anti-slip steering with a left and a similar right electric drive machine, with a combination of diesel engine and generator as electrical energy source, an electronic control device for independent control of speeds at the two prime movers, with a left and a similar right summation, which are designed as a planetary gear, wherein the planet carrier form the output and wherein the ring gear of the left summation gear driving directly from the left prime mover and the ring gear of the right summation gear drivable directly from the right drive machine drivable is, and wherein the ring gear of the left summation gear is connected by a first mechanical gear train directly to the sun gear of the right summation gear, and the ring gear of the right Su mm istsgetriebes is drivingly connected by a second mechanical gear train directly connected to the sun gear of the left summation.
  • This electromechanical drive system advantageously has only a few different components and two identical drive machines. Both drive machines are used both as a travel drive and as a steering drive. The drive system moreover has the me- a very good efficiency between left and right side, so that relatively small and compact electric drive machines can be used.
  • the present invention is therefore an object of the invention to provide a generic drive system, a transmission unit for this purpose and a vehicle equipped with it, with the improved use of the limited space can be achieved by a more compact design.
  • this object is achieved by a, also the features of the characterizing part of the main claim exhibiting electric Antriebssytem or a transmission unit for this or a vehicle equipped therewith.
  • the designated as "left” ring gear ring gear of the left summation located on a "left” hollow shaft.
  • the designated as "left” sun gear shaft which carries the sun gear of the left summation, guided in the direction of the vehicle center.
  • a "right” sun gear is guided through a “right” hollow shaft, on which the "right” ring gear sits in the direction of the center of the vehicle.
  • the drive connection between the ring gear of the left summation gear and the sun gear of the right The summation gear and between the ring gear of the right summation gear and the sun gear of the left summation gear are produced by connecting the left hollow shaft directly to the right sun gear shaft and the right hollow shaft directly to the left sun gear shaft.
  • a "direct drive connection” means that rotation of one part is directly associated with rotation of the other part.
  • a drive-direct connection can be a torsionally rigid connection or else a connection via a gear chain of a gear train.
  • the crosswise connection of the hollow or sun gears of the two summation transmissions does not take place around the outside of the summation gear, but along the main axis of the summation in concentrically rotating shafts. It can be used much shorter connection shafts, which can also be arranged in the area of the vehicle center and within a limited by the two ring gears of the summation gear cylinder space. Thus, all mechanical transmission elements are combined in a compact gear housing with high packing density.
  • the direct drive connections can be made in a simple manner by the left hollow shaft is drivingly connected to the right Sonnenradwelle by a first intermediate shaft on which a first and a second gear are arranged, wherein the first gear with a sitting on the left hollow shaft third gear and the second gear are in engagement with a seated on the right sun gear fourth gear, and that the right hollow shaft with the left Clarradwelle is drivingly connected by a second intermediate shaft on which a fifth and a sixth gear are arranged, the fifth Gear with a seated on the right hollow shaft seventh gear and the sixth gear with engage an 8th gear seated on the left sun gear shaft.
  • the structure of the transmission can be symmetrical, with each component, including the intermediate shafts, is used twice with the gears arranged thereon. Overall, in this way only a few different components are required to build, which offers great advantages in terms of manufacturing costs and spare parts inventory.
  • the two drive machines are arranged offset relative to a central axis of the summation.
  • the left ring gear of the first drive machine via a pair of gears can be driven, which is formed of a arranged on an output shaft of the first drive machine ninth gear and arranged on the left hollow shaft tenth gear.
  • the right ring gear can be driven by the second drive machine via a pair of gears, which is formed from a arranged on an output shaft of the second drive engine eleventh gear and arranged on the right hollow shaft twelfth gear.
  • the advantage of this embodiment of the invention is that a resolved construction is achieved, in which the electric drive machines are arranged offset outwards. There, among other things, they are easily accessible for maintenance work.
  • the offset relative to the center axis of the summation gear arrangement of the two drive motors allows them to be arranged where free space is available, for example, above the caterpillars.
  • Another advantage of this embodiment of the invention is that the overall length of the transmission can be significantly reduced.
  • first drive machine with the left ring gear and the second drive machine with the right ring gear selectively with different shiftable ratios.
  • Fig. 1 shows schematically a vehicle with slide-steering
  • Fig. 2 shows schematically an electric drive system for a vehicle with slipping
  • Fig. 3 shows schematically various embodiments of Getriebebis 6 units with flanged electric drive machines.
  • Fig. 1, 2 denotes a vehicle with slip-steering, which in addition to a vehicle pan 4, a left crawler 6, a right track 8 and an electric drive system 10, the output shafts 12, 14, the two crawlers 6, 8 drive.
  • the electric drive system 10 has two similar electric drive machines 20, 22, each having two independent windings, which are controlled independently of each other.
  • Combinations of diesel engines 13, 15 with electric generators 16, 18 serve as electrical energy sources.
  • the electric generators 16, 18 are electrically connected to the electric drive machines 20 via power electronics which comprise rectifiers 24, 26 and inverters 28, 30, 32, 34 , 22 connected.
  • the individual components are controlled by the electronic control device 36 via signal lines shown in dashed lines in such a way that predetermined, predetermined speeds are set independently of the drive machines 20, 22.
  • the gear unit is designated, which has the two output shafts 12, 14 for driving the two track tracks.
  • the transmission unit 38 shown in FIG. 3 is driven by the two electric drive machines 20, 22. All mechanical transmission parts are housed in a transmission housing 40, which has a left output 12 and a right output 14.
  • the output 12 is connected to the planetary carrier 42 of the left summation gear on which a plurality of planet gears 44 are rotatably mounted, which are in simultaneous engagement with the sun gear 46 and the ring gear 48.
  • the right summation gear is identically constructed and is formed by the planet carrier 50, the planet wheels 52, the sun gear 54 and the ring gear 56.
  • the "left" ring gear 48 of the left summation gear sits on a hollow shaft 58, through which the "left" sun gear 60 is guided in the direction of the vehicle center.
  • the "right" ring gear 56 is seated on a right hollow shaft 62, through which the "right” sun gear 64 is guided in the direction of the vehicle center.
  • the left hollow shaft 58 is drivingly connected to the right sun gear shaft 64 by a first intermediate shaft 66 on which a gear Z1 and a gear Z2 are arranged, wherein the tooth wheel Z1 with the sitting on the left hollow shaft gear Z3 and the gear Z2 with the seated on the right sun gear 64 gear Z4 are engaged.
  • the drive connection of the right hollow shaft 62 with the left Clarradwelle 60 is made by the second intermediate shaft 68 on which the gear Z5 and the gear Z6 are arranged, wherein the gear Z5 with a seated on the right hollow shaft 62 gear Z7 and the gear Z6 with the sitting on the left sun gear 60 gear Z8 are engaged.
  • the left hollow shaft 58 and the left ring gear 48 is drivable directly from the left drive machine 20 drivable.
  • a pair of gears which is formed from the arranged on the output shaft 70 of the left drive machine 20 gear Z9 and arranged on the left hollow shaft 58 gear Z10.
  • the two electric drive machines 20, 22 are arranged offset in parallel with respect to the central axis of the two summation gear.
  • the right hollow shaft 62 and the right ring gear 56 can be driven directly by the right electric drive machine 22.
  • the gear Z11 which is arranged on the output shaft 72 of the right electric drive machine 22, and which is in engagement with the arranged on the right hollow shaft 62 gear Z12 in engagement.
  • the embodiment shown in FIG. 4 differs from the embodiment shown in FIG. 3 in that the left drive machine 20 with the left ring gear 48 and the right drive machine 22 with the right ring gear 56 can be selectively connected to different shiftable ratios. Otherwise, the same reference numerals as in Fig. 3 are used in Figs. 4, 5 and 6.
  • jaw clutch 74 is arranged on the left hollow shaft 58 serving as a switching element.
  • the gear Z10 or the gear Z13 with the left hollow shaft 58 coupled.
  • the gear Z14 is arranged in addition to the gear Z9, which is in engagement with the gear Z13.
  • the dog clutch 74 shown schematically a power shift hydraulic multi-disc clutch can be used as a switching element.
  • the shiftable ratios are correspondingly formed by the dog clutch 78, the sliding sleeve 80, the gear Z15 and the gear Z16.
  • FIGS. 5 and 6 show alternative embodiments of electric drive systems according to the invention, in which the two drive machines 20, 22 are arranged concentrically on the left-hand hollow shaft 58 and the right-hand hollow shaft 62, respectively. Both the hollow shafts 58, 62 and the sun gear shafts 60, 64 penetrate the electric drive machines. The respective associated hollow shaft is at the same time output shaft of the electric drive machines.
  • Fig. 6 shows an embodiment of the invention, in which the left electric drive machine 20 with the right sun gear 54 and the right electric drive machine 22 with the left sun gear 46 is selectively connectable with different switchable gear ratios.
  • first intermediate shaft 66 serving as a switching element jaw clutch 82 is arranged.
  • jaw clutch 82 By shifting the sliding sleeve 84 of the dog clutch 82 is optionally the gear Z1 or the gear Z17 with the first intermediate shaft 66 coupled while the gear Z1 in constant engagement with the seated on the left hollow shaft 58 gear Z3 and the gear Z17 in constant engagement with the also on the left hollow shaft 58 seated gear Z18.
  • a dog clutch 86 is arranged on the second intermediate shaft 68.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Motor Power Transmission Devices (AREA)
  • Structure Of Transmissions (AREA)

Abstract

Système d'entraînement électrique (10) pour un véhicule à moteur à direction à glissement, qui possède deux moteurs d'entraînement similaires (20, 22), une source d'énergie électrique (13, 15, 16, 18), un dispositif électronique de commande (36) ainsi que des boîtes totalisatrices droite et gauche conçues sous forme de train planétaire. Un moteur d'entraînement entraîne la couronne (48) de la boîte totalisatrice gauche, tandis que l'autre moteur d'entraînement entraîne la couronne (56) de la boîte totalisatrice droite. La couronne (48) de la boîte totalisatrice gauche est couplée directement via un train d'engrenages mécanique à la roue solaire (54) de la boîte totalisatrice droite, tandis que la couronne (56) de la boîte totalisatrice droite est couplée directement via un second train d'engrenages mécanique à la roue solaire (46) de la boîte totalisatrice gauche. Selon la présente invention, un arbre gauche (60) de roue solaire est guidé dans un arbre creux gauche (58) en direction du milieu du véhicule et un arbre droit (64) de roue solaire est guidé dans un arbre creux droit (62) en direction du milieu du véhicule.
EP06754183A 2005-06-10 2006-06-07 Systeme d'entrainement electrique a direction a glissement pour un vehicule a moteur, unite transmission et vehicule a moteur correspondant Withdrawn EP1888392A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005027117A DE102005027117A1 (de) 2005-06-10 2005-06-10 Elektrisches Antriebssystem für ein Fahrzeug mit Rutschlenkung, Getriebeeinheit und Fahrzeug
PCT/EP2006/005418 WO2006131332A1 (fr) 2005-06-10 2006-06-07 Systeme d'entrainement electrique a direction a glissement pour un vehicule a moteur, unite transmission et vehicule a moteur correspondant

Publications (1)

Publication Number Publication Date
EP1888392A1 true EP1888392A1 (fr) 2008-02-20

Family

ID=36778181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06754183A Withdrawn EP1888392A1 (fr) 2005-06-10 2006-06-07 Systeme d'entrainement electrique a direction a glissement pour un vehicule a moteur, unite transmission et vehicule a moteur correspondant

Country Status (5)

Country Link
US (1) US20080210481A1 (fr)
EP (1) EP1888392A1 (fr)
KR (1) KR20080014993A (fr)
DE (1) DE102005027117A1 (fr)
WO (1) WO2006131332A1 (fr)

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DE102006018817A1 (de) 2006-04-22 2007-10-25 Zf Friedrichshafen Ag Lenksystem für Kettenfahrzeuge
GB2449489B (en) * 2007-05-25 2010-03-10 Patrick Chi-Kwong Luk Dual in-wheel electric machines linked by differential gear assembly
US9030063B2 (en) * 2010-12-17 2015-05-12 Tesla Motors, Inc. Thermal management system for use with an integrated motor assembly
GB201311628D0 (en) 2013-06-28 2013-08-14 Qinetiq Ltd Drive configurations for skid steered vehicles
GB2591095B (en) * 2020-01-14 2023-11-29 Qinetiq Ltd A drive system for a skid steered vehicle
IL299983A (en) * 2020-07-27 2023-03-01 Kinetics Drive Solutions Inc An electro-mechanical cross drive device for a car
US12024027B2 (en) * 2020-07-27 2024-07-02 Kinetics Drive Solutions, Inc. Electro-mechanical cross steer drive device for a vehicle
CN113147343B (zh) * 2021-03-23 2022-07-08 北京理工大学 一种履带车辆用三模式机电复合传动装置

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Also Published As

Publication number Publication date
US20080210481A1 (en) 2008-09-04
KR20080014993A (ko) 2008-02-15
WO2006131332A1 (fr) 2006-12-14
DE102005027117A1 (de) 2006-12-14

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