EP2959184A1 - Multi-stage planetary transmission - Google Patents
Multi-stage planetary transmissionInfo
- Publication number
- EP2959184A1 EP2959184A1 EP14701080.5A EP14701080A EP2959184A1 EP 2959184 A1 EP2959184 A1 EP 2959184A1 EP 14701080 A EP14701080 A EP 14701080A EP 2959184 A1 EP2959184 A1 EP 2959184A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- designed
- clutch
- switching element
- 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- Withdrawn
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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H2003/445—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the input and the set of orbital 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H2003/447—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the set of orbital gears and the output
-
- 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
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0065—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising nine forward speeds
-
- 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
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital 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
- 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
- F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging 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
- F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch
-
- 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
- F16H2200/2094—Transmissions using gears with orbital motion using positive clutches, e.g. dog clutches
Definitions
- the present invention relates to a planetary multi-speed transmission for a vehicle according to the closer defined in the preamble of claim 1.
- a power-shiftable multi-speed transmission is known.
- the drive shaft is connected via a torsional vibration damper fixed to a first shaft of a first shaft train.
- a parallel arranged second shaft strand includes, among others, designated as the shaft two output shaft.
- the two wave strands are connected to each other via three spur gear stages.
- On the first shaft train is a first three-shaft planetary gear.
- On the second shaft train are a second planetary gear and a third planetary gear.
- the multi-speed transmission thus comprises ten shafts, which communicate with each other via three spur gears and three planetary gears. To switch the eight forward gears and the one reverse gear five switching elements are necessary.
- the envisaged switching elements are hydraulically actuated.
- the switching elements are to be arranged easily accessible from the outside.
- a front-transverse installation of the transmission in a vehicle only a limited axial space is available.
- the present invention is based on the object to provide a multi-speed transmission with the highest possible number of gear ratios and good accessibility of the switching elements at the same time good gear efficiency and the lowest possible axial space requirement.
- a powershiftable multi-speed planetary gear or a multi-speed planetary gear for a vehicle is proposed with a housing, wherein the drive or the drive shaft and the output or the output shaft are arranged axially parallel to each other for a preferred front transverse installation.
- the multistage transmission according to the invention comprises only nine shafts, three planetary gear sets and only six shift elements in order to realize at least nine forward gears and one reverse gear can. Furthermore, preferably only two machine elements are provided for coupling drive and output.
- the good accessibility of the switching elements can be realized, inter alia, on the one hand by the use of brakes as switching elements and on the other hand by the use of couplings as switching elements, which are preferably positioned on outer shafts preferably on the drive and the output in the multi-step transmission according to the invention. Due to the low construction costs result in an advantageous manner low production costs and low weight of the multi-speed transmission according to the invention.
- at least one spur gear or the like is used as a machine element for coupling or for torque transmission between the drive and output, which realizes the necessary translation to the output differential.
- Preferably, only two machine elements or spur gears are provided. However, other machine elements for torque or power transmission, such as chains, belts or the like can be used.
- the planetary gear sets are arranged in the order of the first planetary gear set, the second planetary gear set and the third planetary gear set arranged in the axial direction, wherein preferably only minus planetary gear sets are provided.
- a minus planetary gear set is known to be rotatably mounted on the planet gear planetary gears, which mesh with the sun gear and the ring gear of this planetary gear, so that the ring gear rotates with held planet carrier and rotating sun in the direction opposite to Sonnenradcard.
- a plus planetary gear set is known to be rotatably mounted on its planet gear and meshing with each other inner and outer planetary gears, the sun gear of this planetary mesh with the inner planet gears and the ring gear of this planetary gear with the outer planetary gears, so that the ring gear with held planet carrier and rotating sun gear in the direction of Clarradfilraum same direction turns.
- a hydrodynamic torque converter or a hydrodynamic coupling can be used in the multistage transmission according to the invention. It is also conceivable that an additional starting clutch or an integrated starting clutch or starting brake be used. Furthermore, it is possible that an electric machine or another power Z-power source is arranged on at least one of the shafts. In addition, at least one of the shafts a freewheel to the housing or to another shaft can be arranged.
- nine forward gears and at least one reverse gear can be switched via the switching elements provided.
- switching elements provided.
- further switching combinations are made possible by combining other switching elements, preferably for the fourth forward gear or for other gear ratios.
- switching element is to be understood as meaning a switchable connection between two elements of the transmission, wherein the torque to be transmitted between these two elements is transmitted by means of force-locking or frictional engagement or by means of positive locking. If both elements of the switchable connection are rotatable, then the switching element is referred to as a coupling and if only one of the two elements of the switchable connection rotates, the switching element is referred to as a brake.
- the geometric position or sequence of the individual switching elements is freely selectable, as long as it allows the bindability of the elements. In this way, individual elements can be moved arbitrarily in their position.
- a plurality of wheel sets can also be arranged radially one above the other, ie nested.
- Embodiments of a force-locking switching element are multi-plate clutches or brakes, band brakes, cone clutches or brakes, electromagnetic clutches, magnetic powder clutches and electro-rheological coupling.
- Embodiments of a positive switching element are jaw clutches or brakes and gear couplings.
- the fourth switching element designed as a clutch can be designed as a claw switching element, as a result of which clear consumption advantages are achieved.
- the present invention will be further explained with reference to the drawings. Show it:
- Figure 1 is a schematic view of a first embodiment of a multi-speed transmission according to the invention
- Figure 2 is a schematic view of a second embodiment of the multi-speed transmission.
- Figure 3 is a circuit diagram for the various embodiments of the multi-speed transmission.
- FIGS. 1 and 2 an embodiment variant of the multi-speed transmission according to the invention in planetary construction, for example as an automatic transmission or automatic transmission, is shown by way of example for a vehicle.
- the multistage transmission comprises a housing 1 1, which is indicated only schematically, with a first shaft 1 as the drive An and a second shaft 2 arranged parallel to the axis as the output Ab and further seven shafts 3, 4, 5, 6, 7, 8, 9.
- a first planetary gearset RS1, a second planetary gearset RS2 and a third planetary gearset RS3 are provided, which are preferably designed as negative planetary gear sets.
- a clutch first switching element K1 designed as a clutch second switching element K2, designed as a clutch third switching element K3, designed as a clutch fourth switching element K4, designed as a brake fifth switching element B1 and designed as a brake sixth Switching element B2 provided.
- first spur gear stage ST1 For coupling or for torque transmission between drive input and output Ab, two arbitrary machine elements are preferably provided, which in the case of the embodiment variants are designed by way of example as first spur gear stage ST1 and as second spur gear stage ST2.
- the first spur gear stage ST1 comprises a fixed gear 12 which is connected to the fifth spur wheel Shaft 5 is connected, and an idler gear engaged with this 13, which is connected via the ninth shaft 9 and the fourth switching element K4 with the second shaft 2.
- the second spur gear ST2 comprises a fixed gear 14, which is connected to the sixth shaft 6, and a stationary gear engaged with the latter 15, which is connected to the second shaft 2.
- the first spur gear ST1 a idler gear 12A, which is connected via the ninth shaft 9 and designed as a clutch fourth switching element K4 with the fifth shaft 5.
- the idler gear 12A is engaged with a fixed gear 13A which is connected to the second shaft 2.
- connection possibilities between the provided shafts 1, 2, 3, 4, 5, 6, 7, 8, 9, the planned three planetary gear sets RS1, RS2, RS3, the intended housing 1 1 and the provided switching elements K1, K2, K3, K4, B1, B2 and the proposed spur ST1, ST2 is the term -verbindbar- to understand that the elements described solvable example are connected via a switching element, so that the connection is closed when the switching element is activated and open when the switching element is not activated.
- the releasable connection may be adjacent to the switching element via at least one further element, such as e.g. a wave or the like can be realized.
- the term "connected” is to be understood as meaning that the elements described are connected to one another so to speak, so that they are not permanently detachable. It may be a direct or indirect fixed connection e.g. be realized via other elements.
- the first shaft 1 is detachably connected or connectable as a drive An with the planet carrier PT1 of the first planetary gearset RS1 and the sun gear SR2 of the second planetary gearset RS2. Furthermore, the first shaft 1 can be connected to the ring gear HR1 of the first planetary gearset RS1. In addition, the first shaft 1 with the planet carrier PT2 of the second planetary gear set RS2 and the first machine element and the first spur gear ST1 connectable.
- the second shaft 2 as the output Ab is depending on the variant with the first machine element or the first spur gear ST1 and connected to the second machine element or the second spur gear ST2 or connectable.
- the second shaft 2 is connected to the fixed gear 15 of the second spur gear ST2. Furthermore, the second shaft 2 can be connected via the fourth shift element K4 designed as a clutch and via the ninth shaft 9 to the idler gear 13 of the first spur gear ST1.
- the second shaft 2 with the fixed gear 13A of the first spur gear ST1 and the fixed gear 15 of the second spur gear ST2 each directly fixed.
- the idler gear 12A of the first spur gear ST1 is detachably connected or connectable to the first shaft 1 via the ninth shaft 9 and via the fourth shifting element K4 designed as a clutch and the fifth shaft 5 and via the third shifting element K3 designed as a clutch.
- the first spur gear ST1 can be connected via the ninth shaft 9 and via the fourth shift element K4 designed as a clutch and via the fifth shaft 5 to the planet carrier PT2 of the second planetary gearset RS2.
- the fourth switching element K4 designed as a clutch which connects the first spur gear stage ST1 to the output shaft or to the second shaft 2, is transferred to the other spur gear side, that is to the side of the transmission input shaft or the first shaft 1 positioned.
- the original fixed gear 12 to the idler gear 12A and the original idler gear 13 to the fixed gear 13A is transferred to the fixed gear side.
- first shaft 1 can be connected via the second switching element K2 designed as a clutch and via the fourth shaft 4 to the ring gear HR1 of the first planetary gear set RS1.
- the first shaft 1 is connectable or connected in the first embodiment via the third switching element K3 designed as a clutch and via the fifth shaft 5 both to the fixed gear 12 of the first spur gear ST1 and to the planet gear PT2 of the second planetary gearset RS2.
- the first shaft 1 is connected via the third switching element K3 designed as a clutch, via the shaft 5 and via the fourth switching element K4 designed as a clutch and via the shaft 9 to the idler gear 12A of the first spur gear stage 1, and furthermore the first one Shaft 1 via the third switching element K3 designed as a clutch and via the shaft 5 with the planet carrier PT2 of the second planetary gearset RS2 connectable.
- the second spur gear ST2 is connected via the sixth shaft 6 to the ring gear HR3 of the third planetary gearset RS3.
- the ring gear HR2 of the second planetary gearset 2 is connected via the seventh shaft 7 to the planet carrier PT3 of the third planetary gearset RS3.
- the sun gear SR1 of the first planetary gear set RS1 and the sun gear SR3 of the third planetary gear set RS3 can be connected to the housing 11 via the eighth shaft 8 and via the fifth shifting element B1 designed as a brake.
- FIG. 3 shows a circuit diagram or a switching matrix for the two equivalent transmission variants according to FIGS. 1 and 2.
- switching elements K1, K2, K3, K4, B1, B2 are tabulated to realize the various gear ratios, each gear ratio is a ratio i and indicated between different gear ratios of the respective gear jump ⁇ .
- G1, G2, G3, G4, G5, G6, G7, G8, G9 and the indicated reverse gear R further additional switching combinations are given as alternative fourth forward gears 1, M2, M3.
- the second shifting element K2 designed as a clutch, the fourth shifting element K4 designed as a clutch and the fifth shifting element B1 designed as a brake are closed or activated.
- the first shift element K1 designed as a clutch, the fourth shift element K4 designed as a clutch and the fifth shift element B1 designed as a brake are closed or activated.
- the third forward gear G3 the first shifting element K1 designed as a clutch, the second shifting element K2 designed as a clutch and the fourth shifting element K4 designed as a clutch are closed or activated.
- the first shifting element K1 designed as a clutch, the third shifting element K3 designed as a clutch and the fourth shifting element K4 designed as a clutch are closed or activated.
- the first shifting element K1 designed as a clutch, the second shifting element K2 designed as a clutch and the third shifting element K3 designed as a clutch are closed or activated.
- the first shifting element K1 designed as a clutch, the third shifting element K3 designed as a clutch and the fifth shifting element B1 designed as a brake are closed or activated.
- the seventh forward gear G7 are designed as a clutch second Switching element K2, the executed as a clutch third switching element K3 and executed as a brake fifth switching element B1 closed or activated.
- the third shifting element K3 designed as a clutch, the fifth shifting element B1 designed as a brake and the sixth shifting element B2 designed as a brake are closed or activated.
- the second switching element K2 designed as a clutch, the third shifting element K3 designed as a clutch and the sixth shifting element B2 designed as a brake are closed or activated.
- the reverse gear R the second shifting element K2 designed as a clutch, the fourth shifting element K4 designed as a clutch and the sixth shifting element B2 designed as a brake are closed or activated.
- the third shifting element K3 designed as a clutch, the fourth shifting element K4 designed as a clutch and the sixth shifting element B2 designed as a brake are closed or activated are.
- the third shifting element K3 designed as a clutch, the fourth shifting element K4 designed as a clutch and the fifth shifting element B2 designed as a brake are closed or activated.
- the second shifting element K2 designed as a clutch, the third shifting element K3 designed as a clutch and the fourth shifting element K4 designed as a clutch are closed or activated.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013202893.8A DE102013202893A1 (en) | 2013-02-22 | 2013-02-22 | Multi-speed transmission in planetary construction |
PCT/EP2014/051165 WO2014127942A1 (en) | 2013-02-22 | 2014-01-22 | Multi-stage planetary transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2959184A1 true EP2959184A1 (en) | 2015-12-30 |
Family
ID=49999958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14701080.5A Withdrawn EP2959184A1 (en) | 2013-02-22 | 2014-01-22 | Multi-stage planetary transmission |
Country Status (5)
Country | Link |
---|---|
US (1) | US9976632B2 (en) |
EP (1) | EP2959184A1 (en) |
CN (1) | CN105026793B (en) |
DE (1) | DE102013202893A1 (en) |
WO (1) | WO2014127942A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6511943B2 (en) * | 2015-04-30 | 2019-05-15 | アイシン・エィ・ダブリュ株式会社 | Transmission |
DE102016207445A1 (en) * | 2016-04-29 | 2017-11-02 | Zf Friedrichshafen Ag | Transmission for a motor vehicle, and drive train for a motor vehicle with such a transmission |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4038888A (en) * | 1973-08-29 | 1977-08-02 | Aisin Seiki Kabushiki Kaisha | Speed change gear system |
DE2447581C3 (en) * | 1974-10-05 | 1978-08-03 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Planetary gear change gears, in particular for motor vehicles |
KR100341746B1 (en) | 1999-07-08 | 2002-06-22 | 이계안 | GEAR TRAIN FOR ATs |
DE102007014150A1 (en) | 2007-03-23 | 2008-09-25 | EGS Entwicklungsgesellschaft für Getriebesysteme mbH | Power-shiftable multi-speed transmission |
US8113977B2 (en) | 2007-10-12 | 2012-02-14 | GM Global Technology Operations LLC | Eight and nine speed automatic transmissions |
US8353803B2 (en) * | 2008-08-07 | 2013-01-15 | Honda Motor Co., Ltd. | Automatic transmission |
JP4757327B2 (en) * | 2009-06-04 | 2011-08-24 | 本田技研工業株式会社 | Automatic transmission |
JP5184456B2 (en) * | 2009-07-10 | 2013-04-17 | 本田技研工業株式会社 | Automatic transmission |
JP5087746B2 (en) * | 2010-06-15 | 2012-12-05 | ジヤトコ株式会社 | Automatic transmission |
JP2012127399A (en) * | 2010-12-14 | 2012-07-05 | Honda Motor Co Ltd | Automatic transmission |
JP2012127398A (en) * | 2010-12-14 | 2012-07-05 | Honda Motor Co Ltd | Automatic transmission |
US8343007B2 (en) | 2011-01-31 | 2013-01-01 | GM Global Technology Operations LLC | Compact multi-speed automatic transmission |
DE102013202883A1 (en) * | 2013-02-22 | 2014-08-28 | Zf Friedrichshafen Ag | Multi-speed transmission in planetary construction |
-
2013
- 2013-02-22 DE DE102013202893.8A patent/DE102013202893A1/en not_active Withdrawn
-
2014
- 2014-01-22 EP EP14701080.5A patent/EP2959184A1/en not_active Withdrawn
- 2014-01-22 US US14/769,612 patent/US9976632B2/en not_active Expired - Fee Related
- 2014-01-22 WO PCT/EP2014/051165 patent/WO2014127942A1/en active Application Filing
- 2014-01-22 CN CN201480009715.1A patent/CN105026793B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2014127942A1 * |
Also Published As
Publication number | Publication date |
---|---|
US9976632B2 (en) | 2018-05-22 |
CN105026793A (en) | 2015-11-04 |
WO2014127942A1 (en) | 2014-08-28 |
CN105026793B (en) | 2017-08-08 |
DE102013202893A1 (en) | 2014-08-28 |
US20160201764A1 (en) | 2016-07-14 |
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