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
  • F16H57/00—General details of gearing
  • F16H57/02—Gearboxes; Mounting gearing therein
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K5/00—Casings; Enclosures; Supports
  • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
  • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
  • H02K5/225—Terminal boxes or connection arrangements
• • 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
  • F16H57/02—Gearboxes; Mounting gearing therein
  • F16H2057/02034—Gearboxes combined or connected with electric machines
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
  • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/19—Gearing
  • Y10T74/19023—Plural power paths to and/or from gearing
  • Y10T74/19037—One path includes fluid drive

Definitions

• the invention relates to a transmission device with a transmission housing according to the closer defined in the preamble of claim 1. Art.
• the thus executed wall regions of a gear housing of a transmission device are located, for example, between a starting device designed as a hydrodynamic torque converter and various assemblies for displaying different ratios of the transmission device.
• hybrid vehicle drive trains are characterized by a large space requirement and therefore can often be implemented in existing vehicle systems only by complicated structural changes of areas of the vehicle body, in which the additional electric machine is to be arranged, in existing vehicle systems.
• the present invention is therefore based on the object to provide a transmission device with a transmission housing available, by means of which conventional vehicle systems without structural changes with hybrid drives are executable.
• the transmission device with a transmission housing in which a plurality of assemblies for displaying various translations and a starting device, preferably a hydrodynamic torque converter, can be arranged, in a wall region of the transmission housing breakthroughs are providable, the edge regions are designed with stiffening zones and by the torque from the At least one electric machine of a hybrid system is arranged in the region of the transmission housing, which is provided for the starting device and a connection with the arranged in the transmission housing electric machine with an externally provided for the transmission housing power electronics by at least one of Openings made of the gear housing.
• the transmission device according to the invention is embodied in the interior of a transmission housing known from practice with at least one electric machine of a hybrid system a adapted to the housing conditions of the gear housing and inexpensive to produce power connection is connected to the associated power electronics.
• a trained with the transmission device according to the invention vehicle drive train is a hybrid powertrain with compared to conventional powertrains without hybrid system with at least approximately the same space requirements, which can be implemented inexpensively in existing vehicle systems. This results from the fact that an additional electric machine is arranged in an existing gear housing of a preferably designed as torque converter automatic transmission device and the vehicle driveline receiving body areas of a vehicle system must not be changed constructively.
• a rotor of the electric machine is operatively connected to a ring gear of a planetary gear device of the hybrid system and the ring gear meshes with planetary gear of the planetary gear, which in turn are in engagement with a gearbox fixed sun gear, wherein a torque generated by the electric machine can be introduced via a planet carrier in the power flow of the transmission device.
• a starting torque generated in the region of the electric machine can be introduced into the power flow of the transmission device or of a vehicle drive train.
• Fig. 1 is a highly schematic representation of the transmission device according to the invention.
• Fig. 2 is a simplified longitudinal sectional view of the transmission device along a line H-II shown in detail in Fig. 1 and
• Fig. 3 is a longitudinal sectional view of a marked in detail in Fig. 1 region III of the transmission device.
• Fig. 1 shows a highly schematic representation of a transmission device 1 with a transmission housing 2, in which in the drawing not shown various assemblies for representing different ratios and designed as a hydrodynamic torque converter Anfahr worn can be arranged.
• the edge regions 4 are designed with stiffening zones and can be guided by the torque from the gear housing 2 to outside the transmission housing arranged Volunteerabtrieben a formed with the transmission device 1 vehicle.
• the apertures 3 are prepared in a manner known per se during a suitable casting production process, preferably during a diecasting process, in order to ensure that the wall regions of the transmission housing 2 enclosed by the edge regions 4, without To impair a rigidity of the gear housing 2, by mechanical methods, such as drilling or the like, if necessary, are removable in order to be able to form rectangular openings in the wall of the gear housing 2 here.
• the transmission housing 2 is designed in the manner shown in the drawing with a plurality of openings 3, 13 arranged over the circumference of the transmission housing 3 in order to be able to connect a plurality of power take-offs of a vehicle to the power flow of the transmission device 1 as required.
• the connection of the power take-offs to the power flow of the vehicle drive train in the region of the transmission device 1 can be represented, for example, via a plurality of intermeshing spur gears which form so-called gear chains.
• an electric machine 6 of a hybrid system shown in more detail in FIGS. 2 and 3 is arranged, wherein a Connection of the arranged in the transmission housing 2 electric machine 6 is guided with an externally disposed of the transmission housing 2 power electronics 7 through at least one of the openings 13 of the transmission housing 2.
• the electric machine 6 is designed as a permanent magnet synchronous machine, which is operable with alternating current.
• Each phase of the electric machine 6 is provided with a switching ring 6A. 6B, 6C, wherein wires of the different coil windings of each phase of the electric machine 6 are each connected to an electrical machine 6 end facing the respectively associated switching ring 6A to 6C.
• the shift rings 6A to 6C are at least approximately identical in construction and each have a first annular region 6A1, 6B1 or 6C1 extending in the axial direction of the electric machine 6, a radial direction from the first annular region 6A1 to 6C1 in the direction of an outer radial region of the electric machine 6 extending second Druckring Society 6A2, 6B2 and 6C2 and a turn substantially in the axial direction of the electric machine 6 extending third Heidelbergring Berlin, wherein in the drawing, only the third Wegring Society 6B3 of the second and middle shift ring 6B is shown.
• the switching rings 6A to 6C are in each case operatively connected to the coil windings of the associated phases of the electric machine 6 in the region of the first annular region 6A1, 6B1 and 6C1.
• the first annular regions 6A1 to 6C1 of the switching rings 6A to 6C are arranged radially inside of winding overhangs 21 of the coil windings of the electric machine 6 and connected with their coil projecting projections 21 under cross-sections with the coil windings.
• the term winding overhang of the electric machine 6 is understood to mean in each case a wrapping of a stator tooth with coil wire or copper wire. Due to the winding overhangs 21, the electric machine 6 has a greater axial length than that which is predetermined by the laminated core length of the electric machine 6, since the coil wire windings project axially beyond the sheet packet in this area.
• the switching rings 6A to 6C which are likewise designed as copper rings, are arranged at least in regions in the radial direction below the winding overhangs 21.
• the individual phases represent Lenden shift rings 6A to 6C are received in a plastic part, not shown, and are fixed on this at the stator of the electric machine 6.
• the coil ends of the coils of the electric machine 6 are placed on the shift rings 6A to 6C during assembly of the electric machine 6 and fastened there. Subsequently, the switching ring receptacle or the plastic part and also the stator itself are isolated by means of a hardening impregnating resin.
• the shift rings 6A to 6C are each connected to a sleeve element 8 which extends through the transmission housing 2 via a connection device 7 which is detachably designed in the present case.
• the sleeve elements 8 rest respectively on the third switching ring regions 6B3 of the switching rings 6A to 6C and establish an electrical contact.
• the sleeve elements 8 are firmly connected via the connection device 7 with cable lugs 9, the lugs 9 each resting on end faces 8A of the electrically conductive sleeve elements 8.
• connection devices 7 each have screw elements 10 running through the sleeve elements 8, which are connected in the region of the third switching ring regions 6B3 via screw nut devices 11 to the switching rings 6A to 6C.
• the arranged outside of the gear housing 2 areas of the sleeve members 8 and the associated cable lugs 9 are arranged in a housing device 12 which is present in the region of an opening 13 firmly and sealingly connected to the transmission housing 2 of the transmission device.
• the housing device 12 is formed with a flange-like bottom support plate 14, an intermediate housing portion 15 and a cover plate 16, wherein the housing device 12 is firmly and sealingly connected in the region of the bottom support plate 14 with the transmission housing 2.
• the housing device 12 is firmly and sealingly connected in the region of the bottom support plate 14 with the transmission housing 2.
• For sealing the interior space of the gear housing 2 relative to the environment is between the bottom support plate 14 and the gear housing 2, between the bottom support plate 14 and the intermediate housing portion 15 and between the cover plate 16 and the intermediate housing portion 15 each have a sealing device 17 which is inserted for sealing each in milled grooves 18 Rundschnurdichtitch includes.
• the housing device 12 is formed in the region of the bottom support plate 14 with a standing in the assembled state of the housing means 12 with the opening 13 of the gear housing 2 in coverage opening 23, in the region of a guide device 24 is provided, which is firmly connected to the bottom support plate 14 and through which the sleeve members 8 are guided by respective holes 22 provided in the interior of the housing device 12.
• a cable device 19 connected to a cable lug 9 is guided out of the housing device 12 in the direction of the power electronics 7 in the region of the intermediate housing region 15 and is firmly and sealingly connected to the housing device 12 via a cable screw connection 20, which is preferably a PG screw connection ,
• the electrical machine 6 is thus structurally designed such that the provided for contacting the windings of the electric machine 6 shift rings 6A to 6C present in the assembled state of the electric machine 6 in the manner shown in Fig. 2 in more detail below the opening 13 and of the so-called auxiliary output window of the transmission housing 2 are arranged.
• the bottom support plate 14 is set with the opening provided for the implementation of the sleeve members 8 23 on the window of the opening 13 and bolted to the transmission housing 2.
• the intermediate housing portion 15 and the cover plate 16 unlic- the terminal box, the bottom support plate 14 is executed with a flange.
• the guide device 24 After screwing the bottom support plate 14 to the transmission housing 2, the guide device 24 is screwed onto the bottom support plate 14.
• the guide device 24 is formed with the three holes 22 through which the present case designed as copper sleeves sleeve elements 8 are pushed.
• the bores 22 of the guide device 18 are oriented in the assembled state of the guide device such that the mounted sleeve elements 8 rest on the third switching ring regions 6B3 of the switching rings 6A to 6C.
• the intermediate housing portion 15 is placed on the bottom support plate 14, wherein the seal between these two components is realized by the sealing device 17 preferably designed as a round cord seal.
• the sealing device 17 preferably designed as a round cord seal.
• the lengths of the cable means 19 of the power terminals are cut to the desired length and provided with the cable lugs 9. Again, the cables 19 are pushed with the cable lugs 9 through the cable glands 20 and connected by tightening the cable glands 20 tightly and sealingly with the housing device 12.
• the axial length of the sleeve elements 8 is tuned such that the cable lugs 9 rest on the end faces 8A of the sleeve elements 8.
• the contact between the cable lugs 9, the sleeve elements 8 and the switching rings 6A to 6C is fixed by the fact that in each case one of the screw 10 is rotated through the holes of the cable lugs 9 and the sleeve members 8.
• a screw element 10 engages in the thread of a screw-nut device 1 1, which are designed in each case as threaded bushes, and is tightened.
• the cover plate 16 is placed on the intermediate housing portion 15, wherein the interior of the gear housing in the region between the intermediate housing portion 15 and the cover plate 16 is again sealed by the sealing device 17 and an inserted into a groove 18 round cord seal.
• a rotor of the electric machine 6 is operatively connected in a manner not shown with a ring gear of a planetary gear device of the hybrid system.
• the ring gear meshes with planets of the planetary gear device, which in turn are in engagement with a gear housing fixed sun gear, wherein a generated by the electric machine 6 torque via a planet carrier in the power flow of the transmission device 1 in the region of the transmission input shaft can be introduced.
• the electric machine 6 represents a starting device of a vehicle drive train designed with the transmission device 1, wherein the vehicle is preferably approached in the purely electric driving mode via the motor-driven electric machine 6.
• the in conventional vehicle drive trains which are designed with internal combustion engines as prime movers, provided via a designed as a hydrodynamic torque converter Anffahrinraum during startup provided functionality is not required in an electromechanical starting, so that the hydrodynamic torque converter is obsolete by the installation of the electric machine 6.
• Trained as an internal combustion engine prime mover is connected via a preferably frictional switching element with the transmission device 1 having vehicle driveline operating state dependent coupled.
• the realized via the switching element coupling region between the vehicle drive train and the engine with respect to the connection region between the electric machine 6 and an output of the vehicle drive train is arranged such that the drive machine in the off state during a purely electrical machine side operation of the vehicle drive train can be decoupled from this and a drive power of the electric machine 6 without loss in the range of disconnected and mitzuschleppenden by the electric machine 6 prime mover with higher efficiency in the direction of the output can be performed.
• the electric machine 6 can also be coupled in another way to the power flow of the transmission device in order to be able to represent the above-described operating states of a vehicle drive train.

Applications Claiming Priority (2)

Publications (1)

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• 2008
  • 2008-07-17 DE DE102008040493A patent/DE102008040493A1/de not_active Withdrawn
• 2009
  • 2009-07-16 CN CN200980123867.3A patent/CN102066811B/zh not_active Expired - Fee Related
  • 2009-07-16 JP JP2011517929A patent/JP5469167B2/ja not_active Expired - Fee Related
  • 2009-07-16 EP EP09780705A patent/EP2297485A2/de not_active Withdrawn
  • 2009-07-16 US US13/003,008 patent/US20110118070A1/en not_active Abandoned
  • 2009-07-16 WO PCT/EP2009/059147 patent/WO2010007127A2/de active Application Filing

Non-Patent Citations (1)

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