CN101493136A - Wrap-around driveline with multi-speed transmission - Google Patents

Wrap-around driveline with multi-speed transmission Download PDF

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Publication number
CN101493136A
CN101493136A CN 200910006110 CN200910006110A CN101493136A CN 101493136 A CN101493136 A CN 101493136A CN 200910006110 CN200910006110 CN 200910006110 CN 200910006110 A CN200910006110 A CN 200910006110A CN 101493136 A CN101493136 A CN 101493136A
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China
Prior art keywords
moment
district
planetary gear
gear set
torsion conveyer
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Granted
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CN 200910006110
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Chinese (zh)
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CN101493136B (en
Inventor
C·E·凯里
S·H·维特科普
J·M·哈特
A·W·菲利普斯
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GM Global Technology Operations LLC
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GM Global Technology Operations LLC
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Priority claimed from US12/178,705 external-priority patent/US8137233B2/en
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    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

Provided is a coiling type transmission agent with a multi-speed speed changer which includes four planetary gear set connected in order and five torque transport mechanism, wherein the torque transport mechanism is capable of being jointed selectively so as to form eight forward speed ratio and at least one reverse speed ratio between speed changer input components and speed changer output components. A rotational axis defined by the speed changer input and output components is parallel to a rotational axis of a engine output component for a drive speed changer. At least one rotatable element transmits the torque from the engine output component to the speed changer input component. The torque transport mechanism is enclosed in different zones of six zones in the speed changer cover. The transmission agent also includes an additional ultimate drive planetary gear set and a differential mechanism.

Description

Coiling transmission system with multi-speed transmission
The cross reference of related application
[0001] the application requires the rights and interests of the U.S. Provisional Application 61/023,206 of submission on January 24th, 2008, and the full content of this application is merged in this paper by reference at this.The application requires the rights and interests of the U.S. Provisional Application 61/023,204 of submission on January 24th, 2008, and the full content of this application is merged in this paper by reference at this.The application requires the rights and interests of the U.S. Provisional Application 61/023,202 of submission on January 24th, 2008, and the full content of this application is merged in this paper by reference at this.The application requires the rights and interests of the U.S. Provisional Application 61/023,113 of submission on January 24th, 2008, and the full content of this application is merged in this paper by reference at this.The application requires the rights and interests of the U.S. Provisional Application 61/023,211 of submission on January 24th, 2008, and the full content of this application is merged in this paper by reference at this.
Technical field
[0002] the present invention relates to a kind of transmission system, be used to comprise the vehicle of multi-speed transmission, the variator axis that speed changer limits is with the engine shaft line parallel of the engine that is used for drive speed transmission and separate.
Background technique
[0003] multi-speed transmission in the motor vehicle provides efficient in operation and level and smooth sensation in the gearshift action.A plurality of planetary gear set have been used to provide eight kinds or more forward speed ratio, wherein, encapsulate because the compact nature of planetary gear set has relatively efficiently.A plurality of moment of torsion conveyers that can selectivity engage are controlled and by the speed changer case or input or output member by speed changer sometimes the different component of planetary gear set is interconnected to realize various velocity ratios.Effectively being packaged with of moment of torsion conveyer helps make the speed changer overall dimension to minimize, thereby allows it to be used for more vehicle platform, weight reduction potentially and make to make complexity and minimize.In addition, speed changer must be arranged so that driving torque is provided to vehicle with respect to engine or other power equipments.
Summary of the invention
[0004] provides a kind of power unit, comprising transmission system, be used for moment of torsion being delivered to the vehicle front-wheel from the engine output link of engine by speed changer, speed changer have mutual aligning and with the coaxial speed changer input and output member of aligner wheel, and limit variator axis and around the variator axis rotation.The engine output link limits the engine axis and around the rotation of engine axis, and the engine axis is with the transmission shaft line parallel and separate.Transmission system comprises rotatable element, and chain for example is to be delivered to transmission input member with moment of torsion from the engine output link.Like this, transmission system " coiling (wrap around) " engine is extremely taken turns with transfer of torque.Final driving planetary gear set and differential attachment are delivered to wheel with moment of torsion from the speed changer output link.Live axle and variator axis coaxially extend through speed changer so that moment of torsion is delivered to one of front-wheel from differential attachment,, are positioned at the front-wheel at the differential attachment opposition side of speed changer that is.
[0005] multi-speed transmission has four planetary gear set, and each planetary gear set has first, second and the 3rd rotating parts.Specific right member connects in turn with common rotation.Particularly, second member of first planetary gear set is connected in first member of (continuouslyconnected with) second planetary gear set in turn with common rotation.Second member of second planetary gear set is connected in first member of the third line star gear train in turn with common rotation.Second member of the third line star gear train is connected in first member of fourth line star gear train in turn with common rotation.The 3rd member of the third line star gear train is connected in the 3rd member of fourth line star gear train in turn with common rotation.The 3rd member shelves of first planetary gear set are connected to (grounded to) speed changer case.Preferably, input link is connected in first member of first planetary gear set in turn with common rotation, and output link is connected in first member of fourth line star gear train in turn with common rotation.
[0006] five moment of torsion conveyer can optionally engage and connect selected planetary gear set member with common rotation.Five moment of torsion conveyers can engage to realize eight kinds of forward speed ratios and inverted speed ratio between output link and output link with various combination.
[0007] the speed changer case surrounds planetary gear set and moment of torsion conveyer, and defines and have six not chambeies of same district.The speed changer case comprises opposite first and second end walls and housing parts.A part that is the chamber in this employed " district ".First district extends axially to one of planetary gear set from first end wall.All extend between different adjacent paired planetary gear set in second, third and the 4th district.The 5th district extends to second end wall from another planetary gear set.The first, second, third, fourth and the 5th district all radially extends to the radially outer surface of outermost member.The 6th district adjacency (bordering) first, second, third, fourth and the 5th district, and extend radially outwardly to housing parts, and between first and second end walls, extend axially.
[0008] each moment of torsion conveyer can be arranged in a selected district, to determine that such position will help to realize following target: the overall dimensions of speed changer is minimized, (ii) weight reduction, (iii) be hydraulic feed to the moment of torsion conveyer position that facilitates, for example approach the speed changer case or approach the centralized positioning axle and realize this target by location moment of torsion conveyer, this dual mode all typically defines at least a portion in feeding path hydraulic fluid is fed to the moment of torsion conveyer, (iv) reduce overall complexity (for example, the hub member that is used for the planetary gear set member is interconnected or the is connected quantity of member that links to each other with other with the speed changer case, shape and size).
[0009] five moment of torsion conveyer can comprise four rotary-type clutches and a static clutch, and wherein the static clutch is connected to case of transmission with the second member shelves of fourth line star gear train.In another embodiment, five moment of torsion conveyers can be rotary-type clutch.
[0010] preferably, first, second of each planetary gear set and the 3rd member are ring gear member, frame and sun gear member, but needn't be with this order correspondence.Preferably, input link is connected in the frame of first planetary gear set in turn with common rotation; The ring gear member of first planetary gear set is connected in the sun gear member of second planetary gear set in turn with common rotation; The ring gear member of the third line star gear train is connected in the frame of fourth line star gear train in turn with common rotation; The sun gear member shelves of first planetary gear set are connected to the speed changer case; The ring gear member of second planetary gear set is connected in the frame of the third line star gear train in turn with common rotation; The sun gear member of the third line star gear train is connected in the sun gear member of fourth line star gear train in turn with common rotation; Output link is connected in the frame of fourth line star gear train in turn with common rotation.
[0011] by below in conjunction with the detailed description of accompanying drawing to realizing that optimised form of the present invention carries out, above-mentioned feature and advantage and other features and advantages of the present invention will become apparent.
Description of drawings
[0012] Figure 1A is first embodiment's of multi-speed transmission within the scope of the present invention a partial cutaway schematic, wherein demonstrates the not same district in the speed changer;
[0013] chart of Figure 1B listed the various moment of torsion conveyers of speed changer shown in Figure 1A can selection district wherein in place;
[0014] Fig. 2 is the partial cutaway schematic that comprises the engine's motive power unit, and wherein said engine links to each other with the transmission system that comprises speed changer shown in Figure 1A power is provided to the vehicle front-wheel;
[0015] Fig. 3 A is first embodiment's of multi-speed transmission within the scope of the present invention a partial cutaway schematic, wherein demonstrates the not same district in the speed changer;
[0016] chart of Fig. 3 B listed the various moment of torsion conveyers of speed changer shown in Fig. 3 A can selection district wherein in place;
[0017] Fig. 4 is the partial cutaway schematic that comprises the engine's motive power unit, and wherein said engine links to each other with the transmission system that comprises speed changer shown in Fig. 3 A power is provided to the vehicle front-wheel;
[0018] Fig. 5 A is first embodiment's of multi-speed transmission within the scope of the present invention a partial cutaway schematic, wherein demonstrates the not same district in the speed changer;
[0019] chart of Fig. 5 B listed the various moment of torsion conveyers of speed changer shown in Fig. 5 A can selection district wherein in place;
[0020] Fig. 6 is the partial cutaway schematic that comprises the engine's motive power unit, and wherein said engine links to each other with the transmission system that comprises speed changer shown in Fig. 5 A power is provided to the vehicle front-wheel;
[0021] Fig. 7 A is first embodiment's of multi-speed transmission within the scope of the present invention a partial cutaway schematic, wherein demonstrates the not same district in the speed changer;
[0022] chart of Fig. 7 B listed the various moment of torsion conveyers of speed changer shown in Fig. 7 A can selection district wherein in place;
[0023] Fig. 8 is the partial cutaway schematic that comprises the engine's motive power unit, and wherein said engine links to each other with the transmission system that comprises speed changer shown in Fig. 7 A power is provided to the vehicle front-wheel;
[0024] Fig. 9 A is first embodiment's of multi-speed transmission within the scope of the present invention a partial cutaway schematic, wherein demonstrates the not same district in the speed changer;
[0025] chart of Fig. 9 B listed the various moment of torsion conveyers of speed changer shown in Fig. 9 A can selection district wherein in place; With
[0026] Figure 10 is the partial cutaway schematic that comprises the engine's motive power unit, and wherein said engine links to each other so that power is provided to the vehicle front-wheel with the transmission system that comprises speed changer shown in Fig. 9 A.
Embodiment
[0027] referring to accompanying drawing, wherein, similar reference character is represented similar parts, Figure 1A demonstrates speed changer 10, speed changer 10 has: be used for receiving the transmission input member 12 of power and being used to transmit power to the speed changer output link 14 of the final driving mechanism such as wheel of vehicle from the power source such as internal-combustion engine.Speed changer 10 comprises gear structure 16, and gear structure 16 has: the moment of torsion conveyer 60,62,64,66 and 68 that 20,30,40 and 50 and five of four planetary gear set can selectivity engage.Only demonstrate the part above the spin axis 69 (being called as variator axis) of input link 12 and output link 14 of speed changer 10.What those skilled in the art will recognize that is, planetary gear set 20,30,40 and 50 and moment of torsion conveyer 60,62,64,66 and 68 about spin axis 69 symmetries.
[0028] speed changer 10 is parts of the power unit 100 of the vehicle 101 shown in Fig. 2.Power unit 100 comprises: engine 102 and transmission system 104.Engine 102 transfers torque to transmission system 104 driving torque is transferred to first front-wheel 106 and second front-wheel 108 respectively.Transmission system 104 comprises speed changer 10 and will describe in detail with reference to Fig. 2 hereinafter.
[0029] referring to Figure 1A, each planetary gear set 20,30,40 and 50 includes concentric rotatable part.Particularly, planetary gear set 20 comprises sun gear member 22, ring gear member 24 and frame 26, and wherein frame 26 supports a plurality of small gears 27 that mesh mutually with sun gear member 22 and ring gear member 24 in rotatable mode.Planetary gear set 30 comprises sun gear member 32, ring gear member 34 and frame 36, and wherein frame 36 supports a plurality of small gears 37 that mesh mutually with sun gear member 32 and ring gear member 34 in rotatable mode.Planetary gear set 40 comprises sun gear member 42, ring gear member 44 and frame 46, and wherein frame 46 supports a plurality of small gears 47 that mesh mutually with sun gear member 42 and ring gear member 44 in rotatable mode.Planetary gear set 50 comprises sun gear member 52, ring gear member 54 and frame 56, and wherein frame 56 supports a plurality of small gears 57 that mesh mutually with sun gear member 52 and ring gear member 54 in rotatable mode.
[0030] in Figure 1A illustrated embodiment, planetary gear set 20 is first planetary gear set, and planetary gear set 30 is second planetary gear set, and planetary gear set 40 is the third line star gear trains, and planetary gear set 50 is fourth line star gear trains.
[0031] transmission input member 12 is connected in frame 26 in turn with common rotation.Speed changer output link 14 is connected in frame 56 in turn with common rotation.The member 70 that links to each other is connected in sun gear member 32 with common rotation in turn with ring gear member 24.The member 72 that links to each other is connected in frame 46 with common rotation in turn with ring gear member 34.The member 74 that links to each other is connected in frame 56 with common rotation in turn with ring gear member 44.The member 76 that links to each other is connected in sun gear member 52 with common rotation in turn with sun gear member 42.Each continuous member 70,72,74,76 all can be parts or a plurality of parts.Sun gear member 22 is connected on the housing 80 (being also referred to as housing parts at this) of speed changer 10 by shelves in turn by extended structure member radially 78.Housing 80 is along circumferentially surrounding gear trains 20,30,40 and 50 and moment of torsion conveyer 60,62,64,66 and 68.Speed changer 10 further comprises: roughly at first end wall 82 of speed changer 10 1 ends with roughly at second end wall 84 of speed changer 10 end opposite.Housing 80 connects first end wall 82 and second end wall 84.Should be appreciated that the housing 80 and first end wall 82 and second end wall 84 form the speed changer case, and can be integrally formed, perhaps can be respectively discrete one or more parts of case.The speed changer case will be called as 80,82 and 84 at this. Speed changer case 80,82 and 84 defines chamber 85. End wall 82 and 84 has sealed chamber 85 vertically, but described end wall may be taper or irregularly shaped, rather than the plane shape shown in the illustrative diagram.
[0032] planetary gear set 20,30,40 and 50 and moment of torsion conveyer 60,62,64,66 and 68 be arranged in chamber 85. Speed changer case 80,82,84 is cooperated with planetary gear set 20,30,40 and 50 to limit six spaces or district I-VI in chamber 85.The first district I extends and is adjacent between the plane 91 of first end wall 82 at the outer surface 86 of first end wall 82 and the sidepiece that is roughly parallel to planetary gear set 20 and limits, and extends radially outwardly to the peripheral boundaries 90 of extending along the radially outmost surface of each ring gear member 24,34,44 and 54.The second district II extends and extends and limit between the plane 93 of planetary gear set 20 and peripheral boundaries 90 towards the plane 92 of planetary gear set 30, the sidepiece almost parallel that follows star gear train 30 at the sidepiece almost parallel that follows star gear train 20.The 3rd district III extends and extends and limit between the plane 95 of planetary gear set 30 and peripheral boundaries 90 towards the plane 94 of planetary gear set 40, the sidepiece almost parallel that follows star gear train 40 at the sidepiece almost parallel that follows star gear train 30.The 4th district IV extends and extends and limit between the plane 97 of planetary gear set 40 and peripheral boundaries 90 towards the plane 96 of planetary gear set 50, the sidepiece almost parallel that follows star gear train 50 at the sidepiece almost parallel that follows star gear train 40.The 5th district V extends and limits between the outer surface 87 of the plane 98 of second end wall 84, second end wall 84 and peripheral boundaries 90 at the sidepiece almost parallel that follows star gear train 50.The 6th district VI limits between the outer surface 87 of the outer surface 86 of the outer surface 89 of peripheral boundaries 90, housing 80, first end wall 82 and second end wall 84.Construction element 78 crosses the first district I and the 6th district VI.
[0033] moment of torsion conveyer 62,64,66 and 68 is rotary-type clutches, and moment of torsion conveyer 60 is breaks, is also referred to as reaction clutch (reactive clutch) or static clutch.Moment of torsion conveyer 60 can optionally engage so that the ring gear member is connected to speed changer case 80,82,84 for 54 grades.Moment of torsion conveyer 62 can optionally engage, so that ring gear member 24 is connected in sun gear member 42 and 52 with common rotation.Moment of torsion conveyer 64 can optionally engage, so that frame 26 is connected in frame 36 with common rotation.Moment of torsion conveyer 66 can optionally engage, so that transmission input member 12 and frame 26 are connected in sun gear member 42 and 52 with common rotation.Moment of torsion conveyer 68 can optionally engage, so that frame 36 is connected in ring gear member 54 with common rotation.
[0034] speed changer 10 provides eight kinds of forward speed ratios and a kind of inverted speed ratio between transmission input member 12 and speed changer output link 14.Particularly, inverted speed is than realizing by moment of torsion conveyer 60 and 68 is engaged; First forward speed is than realizing by moment of torsion conveyer 60 and 66 is engaged; Second forward speed is than realizing by moment of torsion conveyer 60 and 62 is engaged; The 3rd forward speed is than realizing by moment of torsion conveyer 60 and 64 is engaged; The 4th forward speed is than realizing by moment of torsion conveyer 62 and 64 is engaged; The 5th forward speed is than realizing by moment of torsion conveyer 64 and 66 is engaged; The 6th forward speed is than realizing by moment of torsion conveyer 64 and 68 is engaged; The 7th forward speed is than realizing by moment of torsion conveyer 66 and 68 is engaged; The 8th forward speed is than realizing by moment of torsion conveyer 62 and 68 is engaged.Like this, all the speedup gearshifts between adjacent velocity ratio and the gearshift of slowing down are single transition gearshift.What those skilled in the art will recognize that is that the combination of above-mentioned moment of torsion conveyer provides the velocity ratio and the inverted speed ratio of eight kinds of different amounts.Preferably, in all embodiments of the present invention, gear is the hypervelocity ratio than selected and feasible at least two kinds of velocity ratios.
[0035] as shown in Figure 1A, moment of torsion conveyer 62 and 66 is arranged in the II district; Moment of torsion conveyer 60,64 and 68 is arranged in the VI district.Alternately, aforesaidly between different gear parts, transmission input member 12, speed changer output link 14 and speed changer case 80,82,84, engage interconnecting that different moment of torsion conveyers 60,62,64,66 and 68 obtain by selectivity, can realize by the moment of torsion conveyer 60,62,64,66 and 68 that in other districts, is provided with, as shown in the chart of Figure 1B." X " expression specified torque conveyer can be positioned in the indicator in the chart of Figure 1B, and " O " expression specified torque conveyer will not be arranged in the indicator.Should be appreciated that the choice of location of the moment of torsion conveyer of every row can be independent of other row and carry out in the chart of Figure 1B.Therefore, moment of torsion conveyer 60 can be arranged in any district in six four districts that may distinguish; Moment of torsion conveyer 62 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 64 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 66 can be arranged in any district in six four districts that may distinguish; Moment of torsion conveyer 68 can be arranged in any district in six five districts that may distinguish.
[0036] referring to Fig. 2, transmission system 104 is owing to its coiling (obvolvent) engine 102 1 ends are called as " coiling " transmission system, and is under the engine 102 and is in the ransaxle structure of aiming at front-wheel 106,108.Particularly, engine has engine output link 110, is used to transmit driving torque.Engine output link 110 is around 112 rotations of engine axis and limit engine axis 112.Engine output link 110 extend through engine box 114 and enter case 116 with the discrete or integrally formed part of speed changer case 80,82,84 in.Rotatable driving sprocket wheel or gear 118 with one heart around 110 rotations of engine output link and with engine output link 110 with common rotation.Rotatable element 120 is the ring-type transmitting element in this embodiment, be used for engine torque from driving sprocket wheel 118 be delivered to one heart around transmission input member 12 rotations and with driving sprocket wheel or the gear 122 of transmission input member 12 with common rotation, in sectional drawing, demonstrate, transmission input member 12 be around with the tubular shafts of the concentric live axle 152 of transmission input member 12.Transmission input member 12 and live axle 152 and speed changer output link 14 are all around variator axis 69 rotations.Like this, rotatable element 120 is delivered to speed changer 10 with moment of torsion from engine 102, and allow engine axis 112 and variator axis 69 to be set to be parallel to each other, engine axis 112 and variator axis 69 are all with respect to vehicle 101 and side extending, and wherein variator axis 69, transmission input member 12 and speed changer output link 14 are aimed at front-wheel 106,108 and be coaxial.Rotatable element 120 can be chain or band.
[0037] gear structure 16 only is schematically illustrated as in Fig. 2 and roughly is in by in the zone shown in the frame of broken lines, and between transmission input member 12 and speed changer output link 14, wherein, by as shown in reference to Figure 1A and the different component of the gear structure of describing 16, transmission input member 12 is connected with speed changer output link 14 to rotate.
[0038] transmission system 104 further comprises: the other planetary gear set 124 that is also referred to as final driving planetary gear set, and differential attachment 126, the two all is set to concentric and coaxial and moment of torsion is delivered to wheel 106,108 from speed changer output link 14 with variator axis 69, and is as described below.Though differential attachment 126 is illustrated as the oblique differential attachment in Fig. 2, but it can alternately be the dual planetary gear group.
[0039] finally drive planetary gear set 124 and comprise sun gear member 132, ring gear member 134 and frame 136, frame 136 supports a plurality of small gears 137 that mesh mutually with sun gear member 132 and ring gear member 134 in rotatable mode.Sun gear member 132 is connected in speed changer output link 14 with common rotation.Ring gear member 134 is connected to speed changer case 80 by shelves.
[0040] differential attachment 126 comprises: with the frame 140 of pinion shaft 142 rotations and support pinion shaft 142, small gear 144 is rotation jointly on pinion shaft 142.Frame 140 is connected in the frame 136 of final planetary gear set 124 with common rotation, and is referred to herein as first member of differential gear set 126.Frame 140 is support- side gear 146 and 148 also, and side gear 146 and 148 all meshes with small gear 144.Side gear 146 is called as second member of differential gear set 126, and is connected in live axle 150 with common rotation, and live axle 150 is transferred to wheel 106 via wheel shaft 151 with driving torque.Wheel shaft 151 can be connected in live axle 150 with common rotation, perhaps can be integrally formed as a body component with live axle 150.Side gear 148 is called as the 3rd member of differential gear set 126, and is connected in live axle 152 with common rotation, and live axle 152 is transferred to wheel 108 via wheel shaft 154 with driving torque.Wheel shaft 154 can be connected in live axle 152 with common rotation, perhaps can be integrally formed as a body component with live axle 152.Live axle 150,152 is all concentric and coaxial with variator axis 69.Live axle 152 passes the central opening in central opening, tubulose speed changer output link 14, transmission gear structure 16, tubulose transmission input member 12, rotatable element 120 and the sprocket wheel 122 in the sun gear member 132 of final driving planetary gear set 124, then is connected in wheel shaft 154 with common rotation.
[0041] like this, transmission system 104 engine 102 that is configured to reel, speed changer 10 is arranged on the axis of pitch (variator axis 69) of the axis 112 that is parallel to engine 102, and transmission input member 12 and speed changer output link 14 are arranged on the end opposite of speed changer 10 and coaxial mutually.Speed changer 10 by with five moment of torsion conveyers of different combined engagement 60,62,64,66 and 68 and with eight kinds of forward speed than and inverted speed than with torque transfer to front-wheel 106,108.Moment of torsion conveyer 60,62,64,66 and 68 can be arranged in a plurality of not same districts that limited by speed changer 10, as previously mentioned.Like this, Jin Cou front wheel drive transmission 10 is encapsulated as the part of coiling transmission system 104 easily.
[0042] Fig. 3 A demonstrates speed changer 210 within the scope of the present invention, comprising: be used for receiving the transmission input member 212 of power and being used to transmit power to the speed changer output link 214 of the final driving mechanism such as wheel of vehicle from the power source such as internal-combustion engine.Speed changer 210 comprises gear structure 216, and gear structure 216 has: the moment of torsion conveyer 260,262,264,266 and 268 that 220,230,240 and 250 and five of four planetary gear set can selectivity engage.Only demonstrate the part above the spin axis 269 (being called as variator axis) of input link 212 and output link 214 of speed changer 210.What those skilled in the art will recognize that is, planetary gear set 220,230,240 and 250 and moment of torsion conveyer 260,262,264,266 and 268 about spin axis 269 symmetries.
[0043] speed changer 210 is parts of the power unit 300 of the vehicle 301 shown in Fig. 4.Power unit 300 comprises: engine 3 02 and transmission system 304.Engine 3 02 transfers torque to transmission system 304 driving torque is transferred to first front-wheel 306 and second front-wheel 308 respectively.Transmission system 304 comprises speed changer 210 and will describe in detail with reference to Fig. 4 hereinafter.
[0044] referring to Fig. 3 A, each planetary gear set 220,230,240 and 250 includes concentric rotatable part.Particularly, planetary gear set 220 comprises sun gear member 222, ring gear member 224 and frame 226, and wherein frame 226 supports a plurality of small gears 227 that mesh mutually with sun gear member 222 and ring gear member 224 in rotatable mode.Planetary gear set 230 comprises sun gear member 232, ring gear member 234 and frame 236, and wherein frame 236 supports a plurality of small gears 237 that mesh mutually with sun gear member 232 and ring gear member 234 in rotatable mode.Planetary gear set 240 comprises sun gear member 242, ring gear member 244 and frame 246, and wherein frame 246 supports a plurality of small gears 247 that mesh mutually with sun gear member 242 and ring gear member 244 in rotatable mode.Planetary gear set 250 comprises sun gear member 252, ring gear member 254 and frame 256, and wherein frame 256 supports a plurality of small gears 257 that mesh mutually with sun gear member 252 and ring gear member 254 in rotatable mode.
[0045] in Fig. 3 A illustrated embodiment, planetary gear set 220 is first planetary gear set, and planetary gear set 230 is second planetary gear set, and planetary gear set 240 is the third line star gear trains, and planetary gear set 250 is fourth line star gear trains.
[0046] transmission input member 212 is connected in frame 226 in turn with common rotation.Speed changer output link 214 is connected in frame 256 in turn with common rotation.The first continuous member 270 makes ring gear member 224 be connected in sun gear member 232 in turn with common rotation.The second continuous member 272 makes frame 246 be connected in ring gear member 234 in turn with common rotation.Third phase connects member 274 makes ring gear member 244 be connected in frame 256 in turn with common rotation.The 4th continuous member 276 makes sun gear member 242 be connected in sun gear member 252 in turn with common rotation.Each continuous member 270,272,274,276 all can be parts or a plurality of parts.Sun gear member 222 is connected on the housing 280 (being also referred to as housing parts at this) of speed changer 210 by shelves in turn by extended structure member radially 278.Housing 280 is along circumferentially surrounding gear trains 220,230,240 and 250 and moment of torsion conveyer 260,262,264,266 and 268.Speed changer 210 further comprises: roughly at first end wall 282 of speed changer 210 1 ends with roughly at second end wall 284 of speed changer 210 end opposite.Housing 280 connects first end wall 282 and second end wall 284.Should be appreciated that the housing 280 and first end wall 282 and second end wall 284 form the speed changer case, and can be parts one or discrete of case.The speed changer case will be called as 280,282 and 284 at this.Speed changer case 280,282 and 284 defines chamber 285. End wall 282 and 284 has sealed chamber 285 vertically, but described end wall may be taper or irregularly shaped, rather than the plane shape shown in the illustrative diagram.
[0047] planetary gear set 220,230,240 and 250 and moment of torsion conveyer 260,262,264,266 and 268 be arranged in chamber 285.Speed changer case 280,282,284 is cooperated with planetary gear set 220,230,240 and 250 to limit six spaces or district I-VI in chamber 285.The first district I extends and is adjacent between the plane 291 of first end wall 282 at the outer surface 286 of first end wall 282 and the sidepiece that is roughly parallel to planetary gear set 220 and limits, and extends radially outwardly to the peripheral boundaries 290 of extending along the radially outmost surface of each ring gear member 224,234,244 and 254.The second district II extends and extends and limit between the plane 295 of planetary gear set 220 and peripheral boundaries 290 towards the plane 292 of planetary gear set 240, the sidepiece almost parallel that follows star gear train 240 at the sidepiece almost parallel that follows star gear train 220.The 3rd district III extends and extends and limit between the plane 293 of planetary gear set 240 and peripheral boundaries 290 towards the plane 296 of planetary gear set 230, the sidepiece almost parallel that follows star gear train 230 at the sidepiece almost parallel that follows star gear train 240.The 4th district IV extends and extends and limit between the plane 297 of planetary gear set 230 and peripheral boundaries 290 towards the plane 294 of planetary gear set 250, the sidepiece almost parallel that follows star gear train 250 at the sidepiece almost parallel that follows star gear train 230.The 5th district V extends and limits between the outer surface 287 of the plane 298 of second end wall 284, second end wall 284 and peripheral boundaries 290 at the sidepiece almost parallel that follows star gear train 250.The 6th district VI limits between the outer surface 287 of the outer surface 286 of the outer surface 289 of peripheral boundaries 290, housing 280, first end wall 282 and second end wall 284.Construction element 278 crosses the first district I and the 6th district VI.
[0048] moment of torsion conveyer 262,264,266 and 268 is rotary-type clutches, and moment of torsion conveyer 260 is breaks, is also referred to as reaction clutch.Moment of torsion conveyer 260 can optionally engage so that the ring gear member is connected to speed changer case 280,282,284 for 254 grades.Moment of torsion conveyer 262 can optionally engage, so that ring gear member 224 and sun gear member 232 are connected in sun gear member 242 with common rotation.Moment of torsion conveyer 264 can optionally engage, so that frame 226 is connected in frame 236 with common rotation.Moment of torsion conveyer 266 can optionally engage, so that transmission input member 212 and frame 226 are connected in sun gear member 242 and 252 with common rotation.Moment of torsion conveyer 268 can optionally engage, so that frame 236 is connected in ring gear member 254 with common rotation.
[0049] speed changer 210 provides eight kinds of forward speed ratios and a kind of inverted speed ratio between transmission input member 212 and speed changer output link 214.Particularly, inverted speed is than realizing by moment of torsion conveyer 260 and 268 is engaged; First forward speed is than realizing by moment of torsion conveyer 260 and 266 is engaged; Second forward speed is than realizing by moment of torsion conveyer 260 and 262 is engaged; The 3rd forward speed is than realizing by moment of torsion conveyer 260 and 264 is engaged; The 4th forward speed is than realizing by moment of torsion conveyer 262 and 264 is engaged; The 5th forward speed is than realizing by moment of torsion conveyer 264 and 266 is engaged; The 6th forward speed is than realizing by moment of torsion conveyer 264 and 268 is engaged; The 7th forward speed is than realizing by moment of torsion conveyer 266 and 268 is engaged; The 8th forward speed is than realizing by moment of torsion conveyer 262 and 268 is engaged.Like this, between adjacent velocity ratio, use the speedup gearshift of single transition and the gearshift of slowing down.
[0050] as shown in Fig. 3 A, moment of torsion conveyer 264 is arranged in the I district, and moment of torsion conveyer 262 and 266 is arranged in the II district; Moment of torsion conveyer 260 and 268 is arranged in the VI district.Alternately, aforesaidly between different gear parts, transmission input member 212, speed changer output link 214 and case 280,282,284, engage interconnecting that different moment of torsion conveyers 260,262,264,266 and 268 obtain by selectivity, can realize by the moment of torsion conveyer 260,262,264,266 and 268 that in other districts, is provided with, as shown in the chart of Fig. 3 B." X " expression specified torque conveyer can be positioned in the indicator in the chart of Fig. 3 B, and " O " expression specified torque conveyer will not be arranged in the indicator.Should be appreciated that the choice of location of the moment of torsion conveyer of every row can be independent of other row and carry out in the chart of Fig. 3 B.Therefore, moment of torsion conveyer 260 can be arranged in three any districts that may distinguish; Moment of torsion conveyer 262 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 264 can be arranged in any district in six two districts that may distinguish; Moment of torsion conveyer 266 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 268 can be arranged in any district in six four districts that may distinguish.
[0051] first continuous member 270 extends through the 4th district IV and the 6th district VI, so that ring gear member 224 is connected in sun gear member 232 in turn with common rotation.The second continuous member 272 extends through the second district II and the 6th district VI, so that frame 246 is connected in ring gear member 234 in turn with common rotation.First hub 273 extends to moment of torsion conveyer 268 from moment of torsion conveyer 264.First hub 273 extends through the first district I and the 6th district VI.Second hub 275 extends to first hub 273 from frame 236.Second hub 275 extends through the 3rd district III, the 4th district IV and the 6th district VI.The part 277 of second hub 275 extends through annular opening in the sun gear member 232 and coaxial and extend with one heart with live axle 352.
[0052] referring to Fig. 4, transmission system 304 is owing to its coiling engine 3 02 1 ends are called as " coiling " transmission system, and is under the engine 3 02 and is in the ransaxle structure of aiming at front-wheel 306,308.Particularly, engine has engine output link 310, is used to transmit driving torque.Engine output link 310 is around 312 rotations of engine axis and limit engine axis 312.Engine output link 310 extend through engine box 314 and enter case 316 with the discrete or integrally formed part of speed changer case 280,282,284 in.Rotatable driving sprocket wheel or gear 318 with one heart around 310 rotations of engine output link and with engine output link 310 with common rotation.Rotatable element 320 is the ring-type transmitting element in this embodiment, be used for engine torque from driving sprocket wheel 318 be delivered to one heart around transmission input member 212 rotations and with driving sprocket wheel or the gear 322 of transmission input member 212 with common rotation, in sectional drawing, demonstrate, transmission input member 212 be around with the tubular shafts of the concentric live axle 352 of transmission input member 212.Transmission input member 212 and live axle 352 and speed changer output link 214 are all around variator axis 269 rotations.Like this, rotatable element 320 is delivered to speed changer 210 with moment of torsion from engine 3 02, and allow engine axis 312 and variator axis 269 to be set to be parallel to each other, engine axis 312 and variator axis 269 are all with respect to vehicle 301 and side extending, and wherein variator axis 269, transmission input member 212 and speed changer output link 214 are aimed at front-wheel 306,308 and be coaxial.Rotatable element 320 can be chain or band.
[0053] gear structure 216 only is schematically illustrated as in Fig. 4 and roughly is in by in the zone shown in the frame of broken lines, and between transmission input member 212 and speed changer output link 214, wherein, by as shown in reference to Fig. 3 A and the different component of the gear structure of describing 216, transmission input member 212 is connected with speed changer output link 214 to rotate.
[0054] transmission system 304 further comprises: the other planetary gear set 324 that is also referred to as final driving planetary gear set, and differential attachment 326, the two all is set to concentric and coaxial and moment of torsion is delivered to wheel 306,308 from speed changer output link 214 with variator axis 269, and is as described below.Though differential attachment 326 is illustrated as the oblique differential attachment in Fig. 4, but it can alternately be the dual planetary gear group.
[0055] finally drive planetary gear set 324 and comprise sun gear member 332, ring gear member 334 and frame 336, frame 336 supports a plurality of small gears 337 that mesh mutually with sun gear member 332 and ring gear member 334 in rotatable mode.Sun gear member 332 is connected in speed changer output link 214 with common rotation.Ring gear member 334 is connected to speed changer case 280 by shelves.
[0056] differential attachment 326 comprises: with the frame 340 of pinion shaft 342 rotations and support pinion shaft 342, small gear 344 is rotation jointly on pinion shaft 342.Frame 340 is connected in the frame 336 of final planetary gear set 324 with common rotation, and is referred to herein as first member of differential gear set 326.Frame 340 is support-side gear 346 and 348 also, and side gear 346 and 348 all meshes with small gear 344.Side gear 346 is called as second member of differential gear set 326, and is connected in live axle 350 with common rotation, and live axle 350 is transferred to wheel 306 via wheel shaft 351 with driving torque.Wheel shaft 351 can be connected in live axle 350 with common rotation, perhaps can be integrally formed as a body component with live axle 350.Side gear 348 is called as the 3rd member of differential gear set 326, and is connected in live axle 352 with common rotation, and live axle 352 is transferred to wheel 308 via wheel shaft 354 with driving torque.Wheel shaft 354 can be connected in live axle 352 with common rotation, perhaps can be integrally formed as a body component with live axle 352.Live axle 350,352 is all concentric and coaxial with variator axis 269.Live axle 352 passes the central opening in central opening, tubulose speed changer output link 214, transmission gear structure 216, tubulose transmission input member 212, rotatable element 320 and the sprocket wheel 322 in the sun gear member 332 of final driving planetary gear set 324, then is connected in wheel shaft 354 with common rotation.
[0057] like this, transmission system 304 engine 3 02 that is configured to reel, speed changer 210 is arranged on the axis of pitch (variator axis 269) of the axis 312 that is parallel to engine 3 02, and transmission input member 212 and speed changer output link 214 are arranged on the end opposite of speed changer 210 and coaxial mutually.Speed changer 210 by with five moment of torsion conveyers of different combined engagement 260,262,264,266 and 268 and with eight kinds of forward speed than and inverted speed than with torque transfer to front-wheel 306,308.Moment of torsion conveyer 260,262,264,266 and 268 can be arranged in a plurality of not same districts that limited by speed changer 210, as previously mentioned.Like this, Jin Cou front wheel drive transmission 210 is encapsulated as the part of coiling transmission system 304 easily.
[0058] Fig. 5 A demonstrates speed changer 410 within the scope of the present invention, comprising: be used for receiving the transmission input member 412 of power and being used to transmit power to the speed changer output link 414 of the final driving mechanism such as wheel of vehicle from the power source such as internal-combustion engine.Speed changer 410 comprises gear structure 416, and gear structure 416 has: the moment of torsion conveyer 460,462,464,466 and 468 that 420,430,440 and 450 and five of four planetary gear set can selectivity engage.Only demonstrate the part above the spin axis 469 (being called as variator axis) of input link 412 and output link 414 of speed changer 410.What those skilled in the art will recognize that is, planetary gear set 420,430,440 and 450 and moment of torsion conveyer 460,462,464,466 and 468 about spin axis 469 symmetries.
[0059] speed changer 410 is parts of the power unit 500 of the vehicle 501 shown in Fig. 6.Power unit 500 comprises: engine 502 and transmission system 504.Engine 502 transfers torque to transmission system 504 driving torque is transferred to first front-wheel 506 and second front-wheel 508 respectively.Transmission system 504 comprises speed changer 410 and will describe in detail with reference to Fig. 6 hereinafter.
[0060] referring to Fig. 5 A, each planetary gear set 420,430,440 and 450 includes concentric rotatable part.Particularly, planetary gear set 420 comprises sun gear member 422, ring gear member 424 and frame 426, and wherein frame 426 supports a plurality of small gears 427 that mesh mutually with sun gear member 422 and ring gear member 424 in rotatable mode.Planetary gear set 430 comprises sun gear member 432, ring gear member 434 and frame 436, and wherein frame 436 supports a plurality of small gears 437 that mesh mutually with sun gear member 432 and ring gear member 434 in rotatable mode.Planetary gear set 440 comprises sun gear member 442, ring gear member 444 and frame 446, and wherein frame 446 supports a plurality of small gears 447 that mesh mutually with sun gear member 442 and ring gear member 444 in rotatable mode.Planetary gear set 450 comprises sun gear member 452, ring gear member 454 and frame 456, and wherein frame 456 supports a plurality of small gears 457 that mesh mutually with sun gear member 452 and ring gear member 454 in rotatable mode.
[0061] in Fig. 5 A illustrated embodiment, planetary gear set 420 is first planetary gear set, and planetary gear set 430 is second planetary gear set, and planetary gear set 440 is the third line star gear trains, and planetary gear set 450 is fourth line star gear trains.
[0062] transmission input member 412 is connected in frame 426 in turn with common rotation.Speed changer output link 414 is connected in frame 456 in turn with common rotation.The first continuous member 470 makes ring gear member 424 be connected in sun gear member 432 in turn with common rotation.The second continuous member 472 makes frame 446 be connected in ring gear member 434 in turn with common rotation.Third phase connects member 474 makes ring gear member 444 be connected in frame 456 in turn with common rotation.The 4th continuous member 476 makes sun gear member 442 be connected in sun gear member 452 in turn with common rotation.Each continuous member 470,472,474,476 all can be parts or a plurality of parts.Sun gear member 422 is connected on the housing 480 (being also referred to as housing parts at this) of speed changer 410 by shelves in turn by extended structure member radially 478.Housing 480 is along circumferentially surrounding gear trains 420,430,440 and 450 and moment of torsion conveyer 460,462,464,466 and 468.Speed changer 410 further comprises: roughly at first end wall 482 of speed changer 410 1 ends with roughly at second end wall 484 of speed changer 410 end opposite.Housing 480 connects first end wall 482 and second end wall 484.Should be appreciated that the housing 480 and first end wall 482 and second end wall 484 form the speed changer case, and can be parts one or discrete of case.The speed changer case will be called as 480,482 and 484 at this.Speed changer case 480,482 and 484 defines chamber 485.End wall 482 and 484 has sealed chamber 485 vertically, but described end wall may be taper or irregularly shaped, rather than the plane shape shown in the illustrative diagram.
[0063] planetary gear set 420,430,440 and 450 and moment of torsion conveyer 460,462,464,466 and 468 be arranged in chamber 485.Speed changer case 480,482,484 is cooperated with planetary gear set 420,430,440 and 450 to limit six spaces or district I-VI in chamber 485.The first district I extends and is adjacent between the plane 491 of first end wall 482 at the outer surface 486 of first end wall 482 and the sidepiece that is roughly parallel to planetary gear set 420 and limits, and extends radially outwardly to the peripheral boundaries 490 of extending along the radially outmost surface of each ring gear member 424,434,444 and 454.The second district II extends and extends and limit between the plane 495 of planetary gear set 420 and peripheral boundaries 490 towards the plane 492 of planetary gear set 440, the sidepiece almost parallel that follows star gear train 440 at the sidepiece almost parallel that follows star gear train 420.The 3rd district III extends and extends and limit between the plane 493 of planetary gear set 440 and peripheral boundaries 490 towards the plane 496 of planetary gear set 430, the sidepiece almost parallel that follows star gear train 430 at the sidepiece almost parallel that follows star gear train 440.The 4th district IV extends and extends and limit between the plane 497 of planetary gear set 430 and peripheral boundaries 490 towards the plane 494 of planetary gear set 450, the sidepiece almost parallel that follows star gear train 450 at the sidepiece almost parallel that follows star gear train 430.The 5th district V extends and limits between the outer surface 487 of the plane 498 of second end wall 484, second end wall 484 and peripheral boundaries 490 at the sidepiece almost parallel that follows star gear train 450.The 6th district VI limits between the outer surface 487 of the outer surface 486 of the outer surface 489 of peripheral boundaries 490, housing 480, first end wall 482 and second end wall 484.Construction element 478 crosses the first district I and the 6th district VI.
[0064] moment of torsion conveyer 462,464,466 and 468 is rotary-type clutches, and moment of torsion conveyer 460 is breaks, is also referred to as reaction clutch.Moment of torsion conveyer 460 can optionally engage so that the ring gear member is connected to speed changer case 480,482,484 for 454 grades.Moment of torsion conveyer 462 can optionally engage, so that ring gear member 424 and sun gear member 432 are connected in sun gear member 442 with common rotation.Moment of torsion conveyer 464 can optionally engage, so that frame 426 is connected in frame 436 with common rotation.Moment of torsion conveyer 466 can optionally engage, so that transmission input member 412 and frame 426 are connected in sun gear member 442 and sun gear member 452 with common rotation.Moment of torsion conveyer 468 can optionally engage, so that frame 436 is connected in ring gear member 454 with common rotation.
[0065] speed changer 410 provides eight kinds of forward speed ratios and a kind of inverted speed ratio between transmission input member 412 and speed changer output link 414.Particularly, inverted speed is than realizing by moment of torsion conveyer 460 and 468 is engaged; First forward speed is than realizing by moment of torsion conveyer 460 and 466 is engaged; Second forward speed is than realizing by moment of torsion conveyer 460 and 462 is engaged; The 3rd forward speed is than realizing by moment of torsion conveyer 460 and 464 is engaged; The 4th forward speed is than realizing by moment of torsion conveyer 462 and 464 is engaged; The 5th forward speed is than realizing by moment of torsion conveyer 464 and 466 is engaged; The 6th forward speed is than realizing by moment of torsion conveyer 464 and 468 is engaged; The 7th forward speed is than realizing by moment of torsion conveyer 466 and 468 is engaged; The 8th forward speed is than realizing by moment of torsion conveyer 462 and 468 is engaged.Like this, between adjacent velocity ratio, use the speedup gearshift of single transition and the gearshift of slowing down.
[0066] as shown in Fig. 5 A, moment of torsion conveyer 464 is arranged in the I district, and moment of torsion conveyer 462 and 466 is arranged in the II district; Moment of torsion conveyer 460 and 468 is arranged in the VI district.Alternately, aforesaidly between different gear parts, transmission input member 412, speed changer output link 414 and case 480,482,484, engage interconnecting that different moment of torsion conveyers 460,462,464,466 and 468 obtain by selectivity, can realize by the moment of torsion conveyer 460,462,464,466 and 468 that in other districts, is provided with, as shown in the chart of Fig. 5 B." X " expression specified torque conveyer can be positioned in the indicator in the chart of Fig. 5 B, and " O " expression specified torque conveyer will not be arranged in the indicator.Should be appreciated that the choice of location of the moment of torsion conveyer of every row can be independent of other row and carry out in the chart of Fig. 5 B.Therefore, moment of torsion conveyer 460 can be arranged in three any districts that may distinguish; Moment of torsion conveyer 462 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 464 can be arranged in any district in six two districts that may distinguish; Moment of torsion conveyer 466 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 468 can be arranged in any district in six four districts that may distinguish.
[0067] first continuous member 470 extends through the 3rd district III and the 6th district VI, so that ring gear member 424 is connected in sun gear member 432 in turn with common rotation.The second continuous member 472 extends through the second district II, the 3rd district III, the 4th district IV and the 6th district VI, so that frame 446 is connected in ring gear member 434 in turn with common rotation.The part of member 472 of linking to each other extends through annular opening in the sun gear member 432 and coaxial and extend with one heart with live axle 552.First hub 473 extends to moment of torsion conveyer 468 from moment of torsion conveyer 464.First hub 473 extends through the first district I and the 6th district VI.Second hub 475 extends to first hub 473 from frame 436.Second hub 475 extends through the 3rd district III and the 6th district VI.
[0068] referring to Fig. 6, transmission system 504 is owing to its coiling engine 502 1 ends are called as " coiling " transmission system, and is under the engine 502 and is in the ransaxle structure of aiming at front-wheel 506,508.Particularly, engine has engine output link 510, is used to transmit driving torque.Engine output link 510 is around 512 rotations of engine axis and limit engine axis 512.Engine output link 510 extend through engine box 514 and enter case 516 with the discrete or integrally formed part of speed changer case 480,482,484 in.Rotatable driving sprocket wheel or gear 518 with one heart around 510 rotations of engine output link and with engine output link 510 with common rotation.Rotatable element 520 is the ring-type transmitting element in this embodiment, be used for engine torque from driving sprocket wheel 518 be delivered to one heart around transmission input member 412 rotations and with driving sprocket wheel or the gear 522 of transmission input member 412 with common rotation, in sectional drawing, demonstrate, transmission input member 412 be around with the tubular shafts of the concentric live axle 552 of transmission input member 412.Transmission input member 412 and live axle 552 and speed changer output link 414 are all around variator axis 469 rotations.Like this, rotatable element 520 is delivered to speed changer 410 with moment of torsion from engine 502, and allow engine axis 512 and variator axis 469 to be set to be parallel to each other, engine axis 512 and variator axis 469 are all with respect to vehicle 501 and side extending, and wherein variator axis 469, transmission input member 412 and speed changer output link 414 are aimed at front-wheel 506,508 and be coaxial.Rotatable element 520 can be chain or band.
[0069] gear structure 416 only is schematically illustrated as in Fig. 6 and roughly is in by in the zone shown in the frame of broken lines, and between transmission input member 412 and speed changer output link 414, wherein, by as shown in reference to Fig. 5 A and the different component of the gear structure of describing 416, transmission input member 412 is connected with speed changer output link 414 to rotate.
[0070] transmission system 504 further comprises: the other planetary gear set 524 that is also referred to as final driving planetary gear set, and differential attachment 526, the two all is set to concentric and coaxial and moment of torsion is delivered to wheel 506,508 from speed changer output link 414 with variator axis 469, and is as described below.Though differential attachment 526 is illustrated as the oblique differential attachment in Fig. 6, but it can alternately be the dual planetary gear group.
[0071] finally drive planetary gear set 524 and comprise sun gear member 532, ring gear member 534 and frame 536, frame 536 supports a plurality of small gears 537 that mesh mutually with sun gear member 532 and ring gear member 534 in rotatable mode.Sun gear member 532 is connected in speed changer output link 414 with common rotation.Ring gear member 534 is connected to speed changer case 480 by shelves.
[0072] differential attachment 526 comprises: with the frame 540 of pinion shaft 542 rotations and support pinion shaft 542, small gear 544 is rotation jointly on pinion shaft 542.Frame 540 is connected in the frame 536 of final planetary gear set 524 with common rotation, and is referred to herein as first member of differential gear set 526.Frame 540 is support-side gear 546 and 548 also, and side gear 546 and 548 all meshes with small gear 544.Side gear 546 is called as second member of differential gear set 526, and is connected in live axle 550 with common rotation, and live axle 550 is transferred to wheel 506 via wheel shaft 551 with driving torque.Wheel shaft 551 can be connected in live axle 550 with common rotation, perhaps can be integrally formed as a body component with live axle 550.Side gear 548 is called as the 3rd member of differential gear set 526, and is connected in live axle 552 with common rotation, and live axle 552 is transferred to wheel 508 via wheel shaft 554 with driving torque.Wheel shaft 554 can be connected in live axle 552 with common rotation, perhaps can be integrally formed as a body component with live axle 552.Live axle 550,552 is all concentric and coaxial with variator axis 469.Live axle 552 passes the central opening in central opening, tubulose speed changer output link 414, transmission gear structure 416, tubulose transmission input member 412, rotatable element 520 and the sprocket wheel 522 in the sun gear member 532 of final driving planetary gear set 524, then is connected in wheel shaft 554 with common rotation.
[0073] like this, transmission system 504 engine 502 that is configured to reel, speed changer 410 is arranged on the axis of pitch (variator axis 469) of the axis 512 that is parallel to engine 502, and transmission input member 412 and speed changer output link 414 are arranged on the end opposite of speed changer 410 and coaxial mutually.Speed changer 410 by with five moment of torsion conveyers of different combined engagement 460,462,464,466 and 468 and with eight kinds of forward speed than and inverted speed than with torque transfer to front-wheel 506,508.Moment of torsion conveyer 460,462,464,466 and 468 can be arranged in a plurality of not same districts that limited by speed changer 410, as previously mentioned.Like this, Jin Cou front wheel drive transmission 410 is encapsulated as the part of coiling transmission system 504 easily.
[0074] Fig. 7 A demonstrates, and speed changer 610 has: be used for receiving the input link 612 of power and being used to transmit power to the speed changer output link 614 of the final driving mechanism such as wheel of vehicle from the power source such as internal-combustion engine.Speed changer 610 comprises gear structure 616, and gear structure 616 has: the moment of torsion conveyer 660,662,664,666 and 668 that 620,630,640 and 650 and five of four planetary gear set can selectivity engage.Only demonstrate the part above the spin axis 669 (being called as variator axis) of input link 612 and output link 614 of speed changer 610.What those skilled in the art will recognize that is, planetary gear set 620,630,640 and 650 and moment of torsion conveyer 660,662,664,666 and 668 about spin axis 669 symmetries.
[0075] speed changer 610 is parts of the power unit 700 of the vehicle 701 shown in Fig. 8.Power unit 700 comprises: engine 702 and transmission system 704.Engine 702 transfers torque to transmission system 704 driving torque is transferred to first front-wheel 706 and second front-wheel 708 respectively.Transmission system 704 comprises speed changer 610 and will describe in detail with reference to Fig. 8 hereinafter.
[0076] referring to Fig. 7 A, planetary gear set 620 is first planetary gear set, and planetary gear set 630 is second planetary gear set, and planetary gear set 640 is the third line star gear trains, and planetary gear set 650 is fourth line star gear trains.
[0077] each planetary gear set 620,630,640 and 650 includes concentric rotatable part.Particularly, planetary gear set 620 comprises sun gear member 622, ring gear member 624 and frame 626, and wherein frame 626 supports a plurality of small gears 627 that mesh mutually with sun gear member 622 and ring gear member 624 in rotatable mode.Planetary gear set 630 comprises sun gear member 632, ring gear member 634 and frame 636, and wherein frame 636 supports a plurality of small gears 637 that mesh mutually with sun gear member 632 and ring gear member 634 in rotatable mode.Planetary gear set 640 comprises sun gear member 642, ring gear member 644 and frame 646, and wherein frame 646 supports a plurality of small gears 647 that mesh mutually with sun gear member 642 and ring gear member 644 in rotatable mode.Planetary gear set 650 comprises sun gear member 652, ring gear member 654 and frame 656, and wherein frame 656 supports a plurality of small gears 657 that mesh mutually with sun gear member 652 and ring gear member 654 in rotatable mode.
[0078] transmission input member 612 is connected in frame 626 in turn with common rotation.Speed changer output link 614 is connected in frame 656 in turn with common rotation.The member 670 that links to each other makes sun gear member 632 be connected in ring gear member 624 in turn with common rotation.The member 672 that links to each other makes ring gear member 634 be connected in frame 646 in turn with common rotation.The member 674 that links to each other makes ring gear member 644 be connected in frame 656 in turn with common rotation.The member 676 that links to each other makes sun gear member 642 be connected in sun gear member 652 in turn with common rotation.Each continuous member 670,672,674,676 all can be parts or a plurality of parts.Sun gear member 622 is connected on the housing 680 (being also referred to as housing parts at this) of speed changer 610 by shelves in turn by extended structure member radially 678.Housing 680 is along circumferentially surrounding gear trains 620,630,640 and 650 and moment of torsion conveyer 660,662,664,666 and 668.Speed changer 610 further comprises: roughly at first end wall 682 of speed changer 610 1 ends with roughly at second end wall 684 of speed changer 610 end opposite.Housing 680 connects first end wall 682 and second end wall 684.Should be appreciated that the housing 680 and first end wall 682 and second end wall 684 form the speed changer case, and can be parts one or discrete of case.The speed changer case will be called as 680,682 and 684 at this.Speed changer case 680,682 and 684 defines chamber 685.End wall 682 and 684 has sealed chamber 685 vertically, but described end wall may be taper or irregularly shaped, rather than the plane shape shown in the illustrative diagram.
[0079] planetary gear set 620,630,640 and 650 and moment of torsion conveyer 660,662,664,666 and 668 be arranged in chamber 685.Speed changer case 680,682,684 is cooperated with planetary gear set 620,630,640 and 650 to limit six spaces or district I-VI in chamber 685.The first district I extends and is adjacent between the plane 693 of first end wall 682 at the outer surface 686 of first end wall 682 and the sidepiece that is roughly parallel to planetary gear set 630 and limits, and extends radially outwardly to the peripheral boundaries 690 of extending along the radially outmost surface of each ring gear member 624,634,644 and 654.The second district II extends and extends and limit between the plane 691 of planetary gear set 630 and peripheral boundaries 690 towards the plane 694 of planetary gear set 620, the sidepiece almost parallel that follows star gear train 620 at the sidepiece almost parallel that follows star gear train 630.The 3rd district III extends and extends and limit between the plane 695 of planetary gear set 620 and peripheral boundaries 690 towards the plane 692 of planetary gear set 640, the sidepiece almost parallel that follows star gear train 640 at the sidepiece almost parallel that follows star gear train 620.The 4th district IV extends and extends and limit between the plane 697 of planetary gear set 640 and peripheral boundaries 690 towards the plane 696 of planetary gear set 650, the sidepiece almost parallel that follows star gear train 650 at the sidepiece almost parallel that follows star gear train 640.The 5th district V extends and limits between the outer surface 687 of the plane 698 of second end wall 684, second end wall 684 and peripheral boundaries 690 at the sidepiece almost parallel that follows star gear train 650.The 6th district VI limits between the outer surface 687 of the outer surface 686 of the outer surface 689 of peripheral boundaries 690, housing 680, first end wall 682 and second end wall 684.Construction element 678 crosses the first district I, the second district II and the 6th district VI.
[0080] moment of torsion conveyer 662,664,666 and 668 is rotary-type clutches, and moment of torsion conveyer 660 is breaks, is also referred to as reaction clutch.Moment of torsion conveyer 660 can optionally engage so that the ring gear member is connected to speed changer case 680,682,684 for 654 grades.Moment of torsion conveyer 662 can optionally engage, so that ring gear member 624 is connected in sun gear member 642 with common rotation.Moment of torsion conveyer 664 can optionally engage, so that frame 626 is connected in frame 636 with common rotation.Moment of torsion conveyer 666 can optionally engage, so that transmission input member 612 and frame 626 are connected in sun gear member 642 with common rotation.Moment of torsion conveyer 668 can optionally engage, so that frame 636 is connected in ring gear member 654 with common rotation.
[0081] speed changer 610 provides eight kinds of forward speed ratios and a kind of inverted speed ratio between transmission input member 612 and speed changer output link 614.Particularly, inverted speed is than realizing by moment of torsion conveyer 660 and 668 is engaged; First forward speed is than realizing by moment of torsion conveyer 660 and 666 is engaged; Second forward speed is than realizing by moment of torsion conveyer 660 and 662 is engaged; The 3rd forward speed is than realizing by moment of torsion conveyer 660 and 664 is engaged; The 4th forward speed is than realizing by moment of torsion conveyer 662 and 664 is engaged; The 5th forward speed is than realizing by moment of torsion conveyer 664 and 666 is engaged; The 6th forward speed is than realizing by moment of torsion conveyer 664 and 668 is engaged; The 7th forward speed is than realizing by moment of torsion conveyer 666 and 668 is engaged; The 8th forward speed is than realizing by moment of torsion conveyer 662 and 668 is engaged.Like this, between adjacent velocity ratio, use the speedup gearshift of single transition and the gearshift of slowing down.
[0082] as shown in Figure 7A, moment of torsion conveyer 664 is arranged in the I district, and moment of torsion conveyer 662 and 666 is arranged in the III district; Moment of torsion conveyer 660 and 668 is arranged in the VI district.Alternately, aforesaidly between different gear parts, transmission input member 612, speed changer output link 614 and case 680,682,684, engage interconnecting that different moment of torsion conveyers 660,662,664,666 and 668 obtain by selectivity, can realize by the moment of torsion conveyer 660,662,664,666 and 668 that in other districts, is provided with, as shown in the chart of Fig. 7 B." X " expression specified torque conveyer can be positioned in the indicator in the chart of Fig. 7 B, and " O " expression specified torque conveyer will not be arranged in the indicator.Should be appreciated that the choice of location of the moment of torsion conveyer of every row can be independent of other row and carry out in the chart of Fig. 7 B.Therefore, moment of torsion conveyer 660 can be arranged in any district in six four districts that may distinguish; Moment of torsion conveyer 662 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 664 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 666 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 668 can be arranged in any district in six four districts that may distinguish.
[0083] referring to Fig. 8, transmission system 704 is owing to its coiling engine 702 1 ends are called as " coiling " transmission system, and is under the engine 702 and is in the ransaxle structure of aiming at front-wheel 706,708.Particularly, engine has engine output link 710, is used to transmit driving torque.Engine output link 710 is around 712 rotations of engine axis and limit engine axis 712.Engine output link 710 extend through engine box 714 and enter case 716 with the discrete or integrally formed part of speed changer case 680,682,684 in.Rotatable driving sprocket wheel or gear 718 with one heart around 710 rotations of engine output link and with engine output link 710 with common rotation.Rotatable element 720 is the ring-type transmitting element in this embodiment, be used for engine torque from driving sprocket wheel 718 be delivered to one heart around transmission input member 612 rotations and with driving sprocket wheel or the gear 722 of transmission input member 612 with common rotation, in sectional drawing, demonstrate, transmission input member 612 be around with the tubular shafts of the concentric live axle 752 of transmission input member 612.Transmission input member 612 and live axle 752 and speed changer output link 614 are all around variator axis 669 rotations.Like this, rotatable element 720 is delivered to speed changer 610 with moment of torsion from engine 702, and allow engine axis 712 and variator axis 669 to be set to be parallel to each other, engine axis 712 and variator axis 669 are all with respect to vehicle 701 and side extending, and wherein variator axis 669, transmission input member 612 and speed changer output link 614 are aimed at front-wheel 706,708 and be coaxial.Rotatable element 720 can be chain or band.
[0084] gear structure 616 only is schematically illustrated as in Fig. 8 and roughly is in by in the zone shown in the frame of broken lines, and between transmission input member 612 and speed changer output link 614, wherein, by as shown in reference to Fig. 7 A and the different component of the gear structure of describing 616, transmission input member 612 is connected with speed changer output link 614 to rotate.
[0085] transmission system 704 further comprises: the other planetary gear set 724 that is also referred to as final driving planetary gear set, and differential attachment 726, the two all is set to concentric and coaxial and moment of torsion is delivered to wheel 706,708 from speed changer output link 614 with variator axis 669, and is as described below.Though differential attachment 726 is illustrated as the oblique differential attachment in Fig. 8, but it can alternately be the dual planetary gear group.
[0086] finally drive planetary gear set 724 and comprise sun gear member 732, ring gear member 734 and frame 736, frame 736 supports a plurality of small gears 737 that mesh mutually with sun gear member 732 and ring gear member 734 in rotatable mode.Sun gear member 732 is connected in speed changer output link 614 with common rotation.Ring gear member 734 is connected to speed changer case 680 by shelves.
[0087] differential attachment 726 comprises: with the frame 740 of pinion shaft 742 rotations and support pinion shaft 742, small gear 744 is rotation jointly on pinion shaft 742.Frame 740 is connected in the frame 736 of final planetary gear set 724 with common rotation, and is referred to herein as first member of differential gear set 726.Frame 740 is support-side gear 746 and 748 also, and side gear 746 and 748 all meshes with small gear 744.Side gear 746 is called as second member of differential gear set 726, and is connected in live axle 750 with common rotation, and live axle 750 is transferred to wheel 706 via wheel shaft 751 with driving torque.Wheel shaft 751 can be connected in live axle 750 with common rotation, perhaps can be integrally formed as a body component with live axle 750.Side gear 748 is called as the 3rd member of differential gear set 726, and is connected in live axle 752 with common rotation, and live axle 752 is transferred to wheel 708 via wheel shaft 754 with driving torque.Wheel shaft 754 can be connected in live axle 752 with common rotation, perhaps can be integrally formed as a body component with live axle 752.Live axle 750,752 is all concentric and coaxial with variator axis 669.Live axle 752 passes the central opening in central opening, tubulose speed changer output link 614, transmission gear structure 616, tubulose transmission input member 612, rotatable element 720 and the sprocket wheel 722 in the sun gear member 732 of final driving planetary gear set 724, then is connected in wheel shaft 754 with common rotation.
[0088] like this, transmission system 704 engine 702 that is configured to reel, speed changer 610 is arranged on the axis of pitch (variator axis 669) of the axis 712 that is parallel to engine 702, and transmission input member 612 and speed changer output link 614 are arranged on the end opposite of speed changer 610 and coaxial mutually.Speed changer 610 by with five moment of torsion conveyers of different combined engagement 660,662,664,666 and 668 and with eight kinds of forward speed than and inverted speed than with torque transfer to front-wheel 706,708.Moment of torsion conveyer 660,662,664,666 and 668 can be arranged in a plurality of not same districts that limited by speed changer 610, as previously mentioned.Like this, Jin Cou front wheel drive transmission 610 is encapsulated as the part of coiling transmission system 704 easily.
[0089] referring to accompanying drawing, wherein, similar reference character is represented similar parts, Fig. 9 A demonstrates, speed changer 810 has: be used for receiving the transmission input member 812 of power and being used to transmit power to the speed changer output link 814 of the final driving mechanism such as wheel of vehicle from the power source such as internal-combustion engine.Speed changer 810 comprises gear structure 816, and gear structure 816 has: the moment of torsion conveyer 860,862,864,866 and 868 that 820,830,840 and 850 and five of four planetary gear set can selectivity engage.Only demonstrate the part above the spin axis 869 (being called as variator axis) of input link 812 and output link 814 of speed changer 810.What those skilled in the art will recognize that is, planetary gear set 820,830,840 and 850 and moment of torsion conveyer 860,862,864,866 and 868 about spin axis 869 symmetries.
[0090] speed changer 810 is parts of the power unit 900 of the vehicle 901 shown in Figure 10.Power unit 900 comprises: engine 902 and transmission system 904.Engine 902 transfers torque to transmission system 904 driving torque is transferred to first front-wheel 906 and second front-wheel 908 respectively.Transmission system 904 comprises speed changer 810 and will describe in detail with reference to Figure 10 hereinafter.
[0091] referring to Fig. 9 A, each planetary gear set 820,830,840 and 850 includes concentric rotatable part.Particularly, planetary gear set 820 comprises sun gear member 822, ring gear member 824 and frame 826, and wherein frame 826 supports a plurality of small gears 827 that mesh mutually with sun gear member 822 and ring gear member 824 in rotatable mode.Planetary gear set 830 comprises sun gear member 832, ring gear member 834 and frame 836, and wherein frame 836 supports a plurality of small gears 837 that mesh mutually with sun gear member 832 and ring gear member 834 in rotatable mode.Planetary gear set 840 comprises sun gear member 842, ring gear member 844 and frame 846, and wherein frame 846 supports a plurality of small gears 847 that mesh mutually with sun gear member 842 and ring gear member 844 in rotatable mode.Planetary gear set 850 comprises sun gear member 852, ring gear member 854 and frame 856, and wherein frame 856 supports a plurality of small gears 857 that mesh mutually with sun gear member 852 and ring gear member 854 in rotatable mode.
[0092] in the embodiment of Fig. 9 A, planetary gear set 820 is first planetary gear set, and planetary gear set 830 is second planetary gear set, and planetary gear set 840 is the third line star gear trains, and planetary gear set 850 is fourth line star gear trains.
[0093] transmission input member 812 is connected in frame 826 in turn with common rotation.Speed changer output link 814 is connected in frame 856 in turn with common rotation.The member 870 that links to each other makes sun gear member 832 be connected in ring gear member 824 in turn with common rotation.The member 872 that links to each other makes ring gear member 834 be connected in frame 846 in turn with common rotation.The member 874 that links to each other makes ring gear member 844 be connected in frame 856 in turn with common rotation.The member 876 that links to each other makes sun gear member 842 be connected in sun gear member 852 in turn with common rotation.Each continuous member 870,872,874,876 all can be parts or a plurality of parts.Sun gear member 822 is connected on the housing 880 of speed changer 810 by shelves in turn by extended structure member radially 878.Housing 880 is along circumferentially surrounding gear trains 820,830,840 and 850 and moment of torsion conveyer 860,862,864,866 and 868.Speed changer 810 further comprises: roughly at first end wall 882 of speed changer 810 1 ends with roughly at second end wall 884 of speed changer 810 end opposite.Housing 880 connects first end wall 882 and second end wall 884.Should be appreciated that the housing 880 and first end wall 882 and second end wall 884 form the speed changer case, and can be parts one or discrete of case.The speed changer case will be called as 880,882 and 884 at this.Speed changer case 880,882 and 884 defines chamber 885.End wall 882 and 884 has sealed chamber 885 vertically, but described end wall may be taper or irregularly shaped, rather than the plane shape shown in the illustrative diagram.
[0094] moment of torsion conveyer 860,862,864,866 and 868 is arranged in chamber 885.Speed changer case 880,882,884 is cooperated with planetary gear set 820,830,840 and 850 to limit six spaces or district I-VI in chamber 885.The first district I extends and is adjacent between the plane 893 of first end wall 882 at the outer surface 886 of first end wall 882 and the sidepiece that is roughly parallel to planetary gear set 830 and limits, and extends radially outwardly to the peripheral boundaries 890 of extending along the radially outmost surface of each ring gear member 824,834,844 and 854.The second district II extends and extends and limit between the plane 895 of planetary gear set 830 and peripheral boundaries 890 towards the plane 894 of planetary gear set 840, the sidepiece almost parallel that follows star gear train 840 at the sidepiece almost parallel that follows star gear train 830.The 3rd district III extends and extends and limit between the plane 897 of planetary gear set 840 and peripheral boundaries 890 towards the plane 896 of planetary gear set 850, the sidepiece almost parallel that follows star gear train 850 at the sidepiece almost parallel that follows star gear train 840.The 4th district IV extends and extends and limit between the plane 891 of planetary gear set 850 and peripheral boundaries 890 towards the plane 898 of planetary gear set 820, the sidepiece almost parallel that follows star gear train 820 at the sidepiece almost parallel that follows star gear train 850.The 5th district V extends and limits between the outer surface 887 of the plane 892 of second end wall 884, second end wall 884 and peripheral boundaries 890 at the sidepiece almost parallel that follows star gear train 820.The 6th district VI limits between the outer surface 887 of the outer surface 886 of the outer surface 889 of peripheral boundaries 890, housing 880, first end wall 882 and second end wall 884.Construction element 878 crosses the 5th district V and the 6th district VI.
[0095] moment of torsion conveyer 860,862,864,866 and 868 is rotary-type clutches, and moment of torsion conveyer 860 is breaks, is also referred to as reaction clutch.Moment of torsion conveyer 860 can optionally engage, so that ring gear member 854 is connected in sun gear member 822 with common rotation.Moment of torsion conveyer 862 can optionally engage, so that sun gear member 832 is connected in sun gear member 842 with common rotation.Moment of torsion conveyer 864 can optionally engage, so that frame 836 is connected in frame 826 with common rotation.Moment of torsion conveyer 866 can optionally engage, so that transmission input member 812 and frame 826 are connected in sun gear member 842 with common rotation.Moment of torsion conveyer 868 can optionally engage, so that frame 836 is connected in ring gear member 854 with common rotation.
[0096] speed changer 810 provides eight kinds of forward speed ratios and a kind of inverted speed ratio between transmission input member 812 and speed changer output link 814.Particularly, inverted speed is than realizing by moment of torsion conveyer 860 and 868 is engaged; First forward speed is than realizing by moment of torsion conveyer 860 and 866 is engaged; Second forward speed is than realizing by moment of torsion conveyer 860 and 862 is engaged; The 3rd forward speed is than realizing by moment of torsion conveyer 860 and 864 is engaged; The 4th forward speed is than realizing by moment of torsion conveyer 862 and 864 is engaged; The 5th forward speed is than realizing by moment of torsion conveyer 864 and 866 is engaged; The 6th forward speed is than realizing by moment of torsion conveyer 864 and 868 is engaged; The 7th forward speed is than realizing by moment of torsion conveyer 866 and 868 is engaged; The 8th forward speed is than realizing by moment of torsion conveyer 862 and 868 is engaged.Like this, between adjacent velocity ratio, use the speedup gearshift of single transition and the gearshift of slowing down.
[0097] as shown in Fig. 9 A, moment of torsion conveyer 862 and 866 is arranged in the II district; Moment of torsion conveyer 868 is arranged in the III district; Moment of torsion conveyer 860 is arranged in the IV district; Moment of torsion conveyer 864 is arranged in the VI district.Alternately, aforesaidly between different gear parts, transmission input member 812, speed changer output link 814 and case 880,882,884, engage interconnecting that different moment of torsion conveyers 860,862,864,866 and 868 obtain by selectivity, can realize by the moment of torsion conveyer 860,862,864,866 and 868 that in other districts, is provided with, as shown in the chart of Fig. 9 B." X " expression specified torque conveyer can be positioned in the indicator in the chart of Fig. 9 B, and " O " expression specified torque conveyer will not be arranged in the indicator.Should be appreciated that the choice of location of the moment of torsion conveyer of every row can be independent of other row and carry out in the chart of Fig. 9 B.Therefore, moment of torsion conveyer 860 can be arranged in any district in six two districts that may distinguish; Moment of torsion conveyer 862 can be arranged in any district in six two districts that may distinguish; Moment of torsion conveyer 864 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 866 can be arranged in any district in six three districts that may distinguish; Moment of torsion conveyer 868 can be arranged in any district in six four districts that may distinguish.
[0098] referring to Figure 10, transmission system 904 is owing to its coiling engine 902 1 ends are called as " coiling " transmission system, and is under the engine 902 and is in the ransaxle structure of aiming at front-wheel 906,908.Particularly, engine has engine output link 910, is used to transmit driving torque.Engine output link 910 is around 912 rotations of engine axis and limit engine axis 912.Engine output link 910 extend through engine box 914 and enter case 916 with the discrete or integrally formed part of speed changer case 880,882,884 in.Rotatable driving sprocket wheel or gear 918 with one heart around 910 rotations of engine output link and with engine output link 910 with common rotation.Rotatable element 920 is the ring-type transmitting element in this embodiment, be used for engine torque from driving sprocket wheel 918 be delivered to one heart around transmission input member 812 rotations and with driving sprocket wheel or the gear 922 of transmission input member 812 with common rotation, in sectional drawing, demonstrate, transmission input member 812 be around with the tubular shafts of the concentric live axle 952 of transmission input member 812.Transmission input member 812 and live axle 952 and speed changer output link 814 are all around variator axis 869 rotations.Like this, rotatable element 920 is delivered to speed changer 810 with moment of torsion from engine 902, and allow engine axis 912 and variator axis 869 to be set to be parallel to each other, engine axis 912 and variator axis 869 are all with respect to vehicle 901 and side extending, and wherein variator axis 869, transmission input member 812 and speed changer output link 814 are aimed at front-wheel 906,908 and be coaxial.Rotatable element 920 can be chain or band.
[0099] gear structure 816 only is schematically illustrated as in Figure 10 and roughly is in by in the zone shown in the frame of broken lines, and between transmission input member 812 and speed changer output link 814, wherein, by as shown in reference to Fig. 9 A and the different component of the gear structure of describing 816, transmission input member 812 is connected with speed changer output link 814 to rotate.
[0100] transmission system 904 further comprises: the other planetary gear set 924 that is also referred to as final driving planetary gear set, and differential attachment 926, the two all is set to concentric and coaxial and moment of torsion is delivered to wheel 906,908 from speed changer output link 814 with variator axis 869, and is as described below.Though differential attachment 926 is illustrated as the oblique differential attachment in Figure 10, but it can alternately be the dual planetary gear group.
[0101] finally drive planetary gear set 924 and comprise sun gear member 932, ring gear member 934 and frame 936, frame 936 supports a plurality of small gears 937 that mesh mutually with sun gear member 932 and ring gear member 934 in rotatable mode.Sun gear member 932 is connected in speed changer output link 814 with common rotation.Ring gear member 934 is connected to speed changer case 880 by shelves.
[0102] differential attachment 926 comprises: with the frame 940 of pinion shaft 942 rotations and support pinion shaft 942, small gear 944 is rotation jointly on pinion shaft 942.Frame 940 is connected in the frame 936 of final planetary gear set 924 with common rotation, and is referred to herein as first member of differential gear set 926.Frame 940 is support-side gear 946 and 948 also, and side gear 946 and 948 all meshes with small gear 944.Side gear 946 is called as second member of differential gear set 926, and is connected in live axle 950 with common rotation, and live axle 950 is transferred to wheel 906 via wheel shaft 951 with driving torque.Wheel shaft 951 can be connected in live axle 950 with common rotation, perhaps can be integrally formed as a body component with live axle 950.Side gear 948 is called as the 3rd member of differential gear set 926, and is connected in live axle 952 with common rotation, and live axle 952 is transferred to wheel 908 via wheel shaft 954 with driving torque.Wheel shaft 954 can be connected in live axle 952 with common rotation, perhaps can be integrally formed as a body component with live axle 952.Live axle 950,952 is all concentric and coaxial with variator axis 869.Live axle 952 passes the central opening in central opening, tubulose speed changer output link 814, transmission gear structure 816, tubulose transmission input member 812, rotatable element 920 and the sprocket wheel 922 in the sun gear member 932 of final driving planetary gear set 924, then is connected in wheel shaft 954 with common rotation.
[0103] like this, transmission system 904 engine 902 that is configured to reel, speed changer 810 is arranged on the axis of pitch (variator axis 869) of the axis 912 that is parallel to engine 902, and transmission input member 812 and speed changer output link 814 are arranged on the end opposite of speed changer 810 and coaxial mutually.Speed changer 810 by with five moment of torsion conveyers of different combined engagement 860,862,864,866 and 868 and with eight kinds of forward speed than and inverted speed than with torque transfer to front-wheel 906,908.Moment of torsion conveyer 860,862,864,866 and 868 can be arranged in a plurality of not same districts that limited by speed changer 810, as previously mentioned.Like this, Jin Cou front wheel drive transmission 810 is encapsulated as the part of coiling transmission system 904 easily.
[0104] though described best form of implementation of the present invention in detail, but what those skilled in the art will recognize that is within the scope of the appended claims, to implement various alternative design of the present invention and embodiment and can realize.

Claims (112)

1, a kind of transmission system is used for moment of torsion is delivered to vehicle front-wheel from the engine output link of engine, and described transmission system comprises:
Speed changer has:
The speed changer case; Transmission input member; The speed changer output link; With first, second, third and fourth line star gear train, each planetary gear set has ring gear member, sun gear member and frame, and described frame supports and described ring gear member and the intermeshing small gear of described sun gear member in rotatable mode; Wherein, described transmission input member and speed changer output link aim at mutually and with described front wheel alignment to limit variator axis, described transmission input member and described speed changer output link are around described variator axis rotation; Wherein said variator axis is with the engine shaft line parallel that is limited by described engine output link and separate, and described engine output link is around described engine axis rotation;
Wherein, the ring gear member of first planetary gear set is connected with common rotation in turn with the sun gear member of second planetary gear set; The ring gear member of second planetary gear set is connected with common rotation in turn with the frame of the third line star gear train; The ring gear member of the third line star gear train is connected with common rotation in turn with the frame of fourth line star gear train; The sun gear member of the third line star gear train is connected with common rotation in turn with the sun gear member of fourth line star gear train; The sun gear member shelves of first planetary gear set are connected to described speed changer case;
Five moment of torsion conveyers are used for optionally making the member of described planetary gear set to link to each other with static component or link to each other with other members of described planetary gear set; Wherein said moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
Wherein, described moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
At least one rotatable element, it can be operated so that moment of torsion is delivered to described transmission input member from described engine output link.
2, transmission system according to claim 1 further comprises:
Other planetary gear set, it has ring gear member, sun gear member and frame, one of member of described other planetary gear set is connected with common rotation with described speed changer output link, and each member of described other planetary gear set is concentric around described variator axis;
Differential attachment, it has first member, second member and the 3rd member; Wherein, first member of described differential attachment and described other planetary gear set is not connected with a connection in the member of common rotation with described speed changer output link with common rotation; Second member of described differential attachment is connected with common rotation with first front-wheel in the described front-wheel;
Live axle, itself and described variator axis are coaxial and pass first, second third and fourth planetary gear set; Wherein, the 3rd member of described differential attachment is connected with common rotation with second front-wheel in the described front-wheel by described live axle.
3, transmission system according to claim 1, wherein, described five moment of torsion conveyers comprise:
The first moment of torsion conveyer, it can optionally engage with the ring gear member shelves with fourth line star gear train and be connected to described speed changer case;
The second moment of torsion conveyer, it can optionally engage so that the ring gear member of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 3rd moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the frame of second planetary gear set;
The 4th moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train; With
The 5th moment of torsion conveyer, it can optionally engage so that the frame of second planetary gear set is connected with common rotation with the ring gear member of fourth line star gear train.
4, transmission system according to claim 3, wherein, described speed changer case has: first end wall, second end wall and the housing parts that first end wall is linked to each other with second end wall; Wherein, described end wall and described housing parts limit a chamber;
Wherein, described speed changer case and described planetary gear set limit six districts in described chamber, comprising: first district, and it extends to the outer periphery that first planetary gear set also radially extends to described planetary gear set vertically from first end wall; Second district, it extends to the outer periphery that second planetary gear set also radially extends to described planetary gear set vertically from first planetary gear set; The 3rd district, it extends to the outer periphery that the third line star gear train also radially extends to described planetary gear set vertically from second planetary gear set; The 4th district, it extends to the outer periphery that fourth line star gear train also radially extends to described planetary gear set vertically from the third line star gear train; The 5th district, it extends to the outer periphery that second end wall also radially extends to described planetary gear set vertically from fourth line star gear train; With the 6th district, it extends axially in abutting connection with the first, second, third, fourth and the 5th district and extending radially outward to described housing parts and between first and second walls; With
Wherein, the first moment of torsion conveyer be arranged in first, second, one of the 5th and the 6th district; The second moment of torsion conveyer is arranged in second, third and one of the 6th district; The 3rd moment of torsion conveyer is arranged in first, second and one of the 6th district; The 4th moment of torsion conveyer is arranged in one of the first, second, third and the 5th district; The 5th moment of torsion conveyer is arranged in one of the first, second, third, the 5th and the 6th district.
5, a kind of transmission system is used for moment of torsion is delivered to vehicle front-wheel from the engine output link of engine, and described transmission system comprises:
Speed changer has:
The speed changer case, it has: first end wall, second end wall and the housing parts that first end wall is linked to each other with second end wall; Wherein, described end wall and described housing parts limit a chamber;
Transmission input member;
The speed changer output link; Wherein, described front-wheel is aimed at and aimed to described transmission input member and described speed changer output link mutually, thereby limit variator axis, and wherein said driver input link and described driver output link are around described variator axis rotation; Described variator axis is with the engine shaft line parallel that is limited by described engine output link and separate, and described engine output link is around described engine axis rotation;
Be in first, second, third in described chamber and fourth line star gear train, each planetary gear set has ring gear member, sun gear member and frame, and described frame supports and described ring gear member and the intermeshing small gear of described sun gear member in rotatable mode;
Wherein, described speed changer case and first, second, third and fourth line star gear train in described chamber, limit six districts, comprise: first district, it extends to first planetary gear set vertically and radially extends to first, second, third and the outer periphery of fourth line star gear train from first end wall; Second district, it extends to second planetary gear set vertically and radially extends to first, second, third and the outer periphery of fourth line star gear train from first planetary gear set; The 3rd district, it extends to the third line star gear train vertically and radially extends to first, second, third and the outer periphery of fourth line star gear train from second planetary gear set; The 4th district, it extends to fourth line star gear train vertically and radially extends to first, second, third and the outer periphery of fourth line star gear train from the third line star gear train; The 5th district, it extends to second end wall vertically and radially extends to first, second, third and the outer periphery of fourth line star gear train from fourth line star gear train; With the 6th district, it extends axially in abutting connection with the first, second, third, fourth and the 5th district and extending radially outward to described housing parts and between first and second walls;
Wherein, the ring gear member of first planetary gear set is connected with common rotation in turn with the sun gear member of second planetary gear set; The ring gear member of second planetary gear set is connected with common rotation in turn with the frame of the third line star gear train; The ring gear member of the third line star gear train is connected with common rotation in turn with the frame of fourth line star gear train; The sun gear member of the third line star gear train is connected with common rotation in turn with the sun gear member of fourth line star gear train; The sun gear member shelves of first planetary gear set are connected to described speed changer case;
Five moment of torsion conveyers are used for optionally making the member of described planetary gear set to link to each other with static component or link to each other with other members of described planetary gear set; Wherein said moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
At least one rotatable element, it can be operated so that moment of torsion is delivered to described transmission input member from described engine output link.
6, transmission system according to claim 5 further comprises:
Other planetary gear set, it has ring gear member, sun gear member and frame, one of member of described other planetary gear set is connected with common rotation with described speed changer output link, and each member of described other planetary gear set is concentric around described variator axis;
Differential attachment, it has first member, second member and the 3rd member; Wherein, first member of described differential attachment and described other planetary gear set is not connected with a connection in the member of common rotation with described speed changer output link with common rotation; Second member of described differential attachment is connected with common rotation with first front-wheel in the described front-wheel;
Live axle, itself and described variator axis are coaxial and pass first, second third and fourth planetary gear set; Wherein, the 3rd member of described differential attachment is connected with common rotation with second front-wheel in the described front-wheel by described live axle.
7, transmission system according to claim 5, wherein, described at least one rotatable element is the ring-type transmitting element.
8, transmission system according to claim 5, wherein, described five moment of torsion conveyers comprise:
The first moment of torsion conveyer, it can optionally engage with the ring gear member shelves with fourth line star gear train and be connected to described speed changer case;
The second moment of torsion conveyer, it can optionally engage so that the ring gear member of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 3rd moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the frame of second planetary gear set;
The 4th moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 5th moment of torsion conveyer, it can optionally engage so that the frame of second planetary gear set is connected with common rotation with the ring gear member of fourth line star gear train;
Wherein, the first moment of torsion conveyer be arranged in first, second, one of the 5th and the 6th district; The second moment of torsion conveyer is arranged in second, third and one of the 6th district; The 3rd moment of torsion conveyer is arranged in first, second and one of the 6th district; The 4th moment of torsion conveyer is arranged in one of the first, second, third and the 5th district; The 5th moment of torsion conveyer is arranged in one of the first, second, third, the 5th and the 6th district.
9, transmission system according to claim 8, wherein, the first moment of torsion conveyer is arranged in the 6th district; The second moment of torsion conveyer is arranged in second district; The 3rd moment of torsion conveyer is arranged in the 6th district; The 4th moment of torsion conveyer is arranged in second district; The 5th moment of torsion conveyer is arranged in the 6th district.
10, transmission system according to claim 8, wherein, the first moment of torsion conveyer is arranged in first district
11, transmission system according to claim 8, wherein, the first moment of torsion conveyer is arranged in second district
12, transmission system according to claim 8, wherein, the first moment of torsion conveyer is arranged in the 5th district.
13, transmission system according to claim 8, wherein, the first moment of torsion conveyer is arranged in the 6th district.
14, transmission system according to claim 8, wherein, the second moment of torsion conveyer is arranged in second district.
15, transmission system according to claim 8, wherein, the second moment of torsion conveyer is arranged in the 3rd district.
16, transmission system according to claim 8, wherein, the second moment of torsion conveyer is arranged in the 6th district.
17, transmission system according to claim 8, wherein, the 3rd moment of torsion conveyer is arranged in first district.
18, transmission system according to claim 8, wherein, the 3rd moment of torsion conveyer is arranged in second district.
19, transmission system according to claim 8, wherein, the 3rd moment of torsion conveyer is arranged in the 6th district.
20, transmission system according to claim 8, wherein, the 4th moment of torsion conveyer is arranged in first district.
21, transmission system according to claim 8, wherein, the 4th moment of torsion conveyer is arranged in second district.
22, transmission system according to claim 8, wherein, the 4th moment of torsion conveyer is arranged in the 3rd district.
23, transmission system according to claim 8, wherein, the 4th moment of torsion conveyer is arranged in the 5th district.
24, transmission system according to claim 8, wherein, the 5th moment of torsion conveyer is arranged in first district.
25, transmission system according to claim 8, wherein, the 5th moment of torsion conveyer is arranged in second district.
26, transmission system according to claim 8, wherein, the 5th moment of torsion conveyer is arranged in the 3rd district.
27, transmission system according to claim 8, wherein, the 5th moment of torsion conveyer is arranged in the 5th district.
28, transmission system according to claim 8, wherein, the 5th moment of torsion conveyer is arranged in the 6th district.
29, a kind of transmission system is used for moment of torsion is delivered to vehicle front-wheel from the engine output link of engine, and described transmission system comprises:
Speed changer has:
The speed changer case, it has: first end wall, second end wall and the housing parts that first end wall is linked to each other with second end wall; Wherein, described end wall and described housing parts limit a chamber;
Transmission input member;
The speed changer output link; Wherein, described front-wheel is aimed at and aimed to described transmission input member and described speed changer output link mutually, thereby limit variator axis, and wherein said driver input link and described driver output link are around described variator axis rotation; Described variator axis is with the engine shaft line parallel that is limited by described engine output link and separate, and described engine output link is around described engine axis rotation;
Be in first, second, third in described chamber and fourth line star gear train, each planetary gear set has ring gear member, sun gear member and frame, and described frame supports and described ring gear member and the intermeshing small gear of described sun gear member in rotatable mode;
Wherein, described speed changer case and described planetary gear set limit six districts in described chamber, comprising: first district, and it extends to the outer periphery that first planetary gear set also radially extends to described planetary gear set vertically from first end wall; Second district, it extends to the outer periphery that the third line star gear train also radially extends to described planetary gear set vertically from first planetary gear set; The 3rd district, it extends to the outer periphery that second planetary gear set also radially extends to described planetary gear set vertically from the third line star gear train; The 4th district, it extends to the outer periphery that fourth line star gear train also radially extends to described planetary gear set vertically from second planetary gear set; The 5th district, it extends to the outer periphery that second end wall also radially extends to described planetary gear set vertically from fourth line star gear train; With the 6th district, it extends axially in abutting connection with the first, second, third, fourth and the 5th district and extending radially outward to described housing parts and between first and second walls;
Wherein, the ring gear member of first planetary gear set is connected with common rotation in turn with the sun gear member of second planetary gear set; The ring gear member of second planetary gear set is connected with common rotation in turn with the frame of the third line star gear train; The ring gear member of the third line star gear train is connected with common rotation in turn with the frame of fourth line star gear train; The sun gear member of the third line star gear train is connected with common rotation in turn with the sun gear member of fourth line star gear train; The sun gear member shelves of first planetary gear set are connected to described speed changer case;
Five moment of torsion conveyers are used for optionally making the member of described planetary gear set to link to each other with static component or link to each other with other members of described planetary gear set; Wherein said moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
At least one rotatable element, it can be operated so that moment of torsion is delivered to described transmission input member from described engine output link.
30, transmission system according to claim 29 further comprises:
Other planetary gear set, it has ring gear member, sun gear member and frame, one of member of described other planetary gear set is connected with common rotation with described speed changer output link, and each member of described other planetary gear set is concentric around described variator axis;
Differential attachment, it has first member, second member and the 3rd member; Wherein, first member of described differential attachment and described other planetary gear set is not connected with a connection in the member of common rotation with described speed changer output link with common rotation; Second member of described differential attachment is connected with common rotation with first front-wheel in the described front-wheel;
Live axle, itself and described variator axis are coaxial and pass first, second third and fourth planetary gear set; Wherein, the 3rd member of described differential attachment is connected with common rotation with second front-wheel in the described front-wheel by described live axle.
31, transmission system according to claim 29, wherein, described at least one rotatable element is the ring-type transmitting element.
32, transmission system according to claim 29 further comprises:
First member that links to each other is connected the ring gear member of first planetary gear set with common rotation in turn with the sun gear member of second planetary gear set; Wherein the first continuous member extends through the 4th and the 6th district;
Second member that links to each other is connected the ring gear member of second planetary gear set with common rotation in turn with the frame of the third line star gear train; Wherein the second continuous member extends through the second and the 6th district.
33, transmission system according to claim 29 further comprises:
First hub, it extends to the 5th moment of torsion conveyer from the 3rd moment of torsion conveyer; Wherein first hub extends through the first and the 6th district;
Second hub, its frame from second planetary gear set extends to first hub; Wherein second hub extends through the 3rd, the 4th and the 6th district.
34, transmission system according to claim 29, wherein, described five moment of torsion conveyers comprise:
The first moment of torsion conveyer, it can optionally engage with the ring gear member shelves with fourth line star gear train and be connected to described speed changer case;
The second moment of torsion conveyer, it can optionally engage so that the ring gear member of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 3rd moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the frame of second planetary gear set;
The 4th moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 5th moment of torsion conveyer, it can optionally engage so that the frame of second planetary gear set is connected with common rotation with the ring gear member of fourth line star gear train;
Wherein, the first moment of torsion conveyer is arranged in one of the first, the 5th and the 6th district; The second moment of torsion conveyer is arranged in first, second and one of the 6th district; The 3rd moment of torsion conveyer is arranged in one of the first and the 6th district; The 4th moment of torsion conveyer is arranged in first, second and one of the 6th district; The 5th moment of torsion conveyer is arranged in one of the first, the 4th, the 5th and the 6th district.
35, transmission system according to claim 34, wherein, the first moment of torsion conveyer is arranged in the 6th district; The second moment of torsion conveyer is arranged in second district; The 3rd moment of torsion conveyer is arranged in first district; The 4th moment of torsion conveyer is arranged in second district; The 5th moment of torsion conveyer is arranged in the 6th district.
36, transmission system according to claim 34, wherein, the first moment of torsion conveyer is arranged in first district.
37, transmission system according to claim 34, wherein, the first moment of torsion conveyer is arranged in the 5th district.
38, transmission system according to claim 34, wherein, the first moment of torsion conveyer is arranged in the 6th district.
39, transmission system according to claim 34, wherein, the second moment of torsion conveyer is arranged in first district.
40, transmission system according to claim 34, wherein, the second moment of torsion conveyer is arranged in second district.
41, transmission system according to claim 34, wherein, the second moment of torsion conveyer is arranged in the 6th district.
42, transmission system according to claim 34, wherein, the 3rd moment of torsion conveyer is arranged in first district.
43, transmission system according to claim 34, wherein, the 3rd moment of torsion conveyer is arranged in the 6th district.
44, transmission system according to claim 34, wherein, the 4th moment of torsion conveyer is arranged in first district.
45, transmission system according to claim 34, wherein, the 4th moment of torsion conveyer is arranged in second district.
46, transmission system according to claim 34, wherein, the 4th moment of torsion conveyer is arranged in the 6th district.
47, transmission system according to claim 34, wherein, the 5th moment of torsion conveyer is arranged in first district.
48, transmission system according to claim 34, wherein, the 5th moment of torsion conveyer is arranged in the 4th district.
49, transmission system according to claim 34, wherein, the 5th moment of torsion conveyer is arranged in the 5th district.
50, transmission system according to claim 34, wherein, the 5th moment of torsion conveyer is arranged in the 6th district.
51, a kind of transmission system is used for moment of torsion is delivered to vehicle front-wheel from the engine output link of engine, and described transmission system comprises:
Speed changer has:
The speed changer case, it has: first end wall, second end wall and the housing parts that first end wall is linked to each other with second end wall; Wherein, described end wall and described housing parts limit a chamber;
Transmission input member;
The speed changer output link; Wherein, described front-wheel is aimed at and aimed to described transmission input member and described speed changer output link mutually, thereby limit variator axis, and wherein said driver input link and described driver output link are around described variator axis rotation; Described variator axis is with the engine shaft line parallel that is limited by described engine output link and separate, and described engine output link is around described engine axis rotation;
Be in first, second, third in described chamber and fourth line star gear train, each planetary gear set has ring gear member, sun gear member and frame, and described frame supports and described ring gear member and the intermeshing small gear of described sun gear member in rotatable mode;
Wherein, described speed changer case and described planetary gear set limit six districts in described chamber, comprising: first district, and it extends to the outer periphery that first planetary gear set also radially extends to described planetary gear set vertically from first end wall; Second district, it extends to the outer periphery that the third line star gear train also radially extends to described planetary gear set vertically from first planetary gear set; The 3rd district, it extends to the outer periphery that second planetary gear set also radially extends to described planetary gear set vertically from the third line star gear train; The 4th district, it extends to the outer periphery that fourth line star gear train also radially extends to described planetary gear set vertically from second planetary gear set; The 5th district, it extends to the outer periphery that second end wall also radially extends to described planetary gear set vertically from fourth line star gear train; With the 6th district, it extends axially in abutting connection with the first, second, third, fourth and the 5th district and extending radially outward to described housing parts and between first and second walls;
Wherein, the ring gear member of first planetary gear set is connected with common rotation in turn with the sun gear member of second planetary gear set; The ring gear member of second planetary gear set is connected with common rotation in turn with the frame of the third line star gear train; The ring gear member of the third line star gear train is connected with common rotation in turn with the frame of fourth line star gear train; The sun gear member of the third line star gear train is connected with common rotation in turn with the sun gear member of fourth line star gear train; The sun gear member shelves of first planetary gear set are connected to described speed changer case;
First member that links to each other is connected the ring gear member of first planetary gear set with common rotation in turn with the sun gear member of second planetary gear set; Wherein the first continuous member extends through the 3rd and the 6th district;
Second member that links to each other is connected the ring gear member of second planetary gear set with common rotation in turn with the frame of the third line star gear train; Wherein second link to each other member extend through second, third, the 4th and the 6th district;
Five moment of torsion conveyers are used for optionally making the member of described planetary gear set to link to each other with static component or link to each other with other members of described planetary gear set; Wherein said moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
At least one rotatable element, it can be operated so that moment of torsion is delivered to described transmission input member from described engine output link.
52, according to the described transmission system of claim 51, further comprise:
Other planetary gear set, it has ring gear member, sun gear member and frame, one of member of described other planetary gear set is connected with common rotation with described speed changer output link, and each member of described other planetary gear set is concentric around described variator axis;
Differential attachment, it has first member, second member and the 3rd member; Wherein, first member of described differential attachment and described other planetary gear set is not connected with a connection in the member of common rotation with described speed changer output link with common rotation; Second member of described differential attachment is connected with common rotation with first front-wheel in the described front-wheel;
Live axle, itself and described variator axis are coaxial and pass first, second third and fourth planetary gear set; Wherein, the 3rd member of described differential attachment is connected with common rotation with second front-wheel in the described front-wheel by described live axle.
53, according to the described transmission system of claim 51, wherein, described at least one rotatable element is the ring-type transmitting element.
54, according to the described transmission system of claim 51, further comprise:
First hub, it extends to the 5th moment of torsion conveyer from the 3rd moment of torsion conveyer; Wherein first hub extends through the first and the 6th district;
Second hub, its frame from second planetary gear set extends to first hub; Wherein second hub extends through the 3rd and the 6th district.
55, according to the described transmission system of claim 51, wherein, described five moment of torsion conveyers comprise:
The first moment of torsion conveyer, it can optionally engage with the ring gear member shelves with fourth line star gear train and be connected to described speed changer case;
The second moment of torsion conveyer, it can optionally engage so that the ring gear member of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 3rd moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the frame of second planetary gear set;
The 4th moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 5th moment of torsion conveyer, it can optionally engage so that the frame of second planetary gear set is connected with common rotation with the ring gear member of fourth line star gear train;
Wherein, the first moment of torsion conveyer is arranged in one of the first, the 5th and the 6th district; The second moment of torsion conveyer is arranged in first, second and one of the 6th district; The 3rd moment of torsion conveyer is arranged in one of the first and the 6th district; The 4th moment of torsion conveyer is arranged in first, second and one of the 6th district; The 5th moment of torsion conveyer is arranged in one of the first, the 4th, the 5th and the 6th district.
56, according to the described transmission system of claim 55, wherein, the first moment of torsion conveyer is arranged in the 6th district; The second moment of torsion conveyer is arranged in second district; The 3rd moment of torsion conveyer is arranged in first district; The 4th moment of torsion conveyer is arranged in second district; The 5th moment of torsion conveyer is arranged in the 6th district.
57, according to the described transmission system of claim 55, wherein, the first moment of torsion conveyer is arranged in first district.
58, according to the described transmission system of claim 55, wherein, the first moment of torsion conveyer is arranged in the 5th district.
59, according to the described transmission system of claim 55, wherein, the first moment of torsion conveyer is arranged in the 6th district.
60, according to the described transmission system of claim 55, wherein, the second moment of torsion conveyer is arranged in first district.
61, according to the described transmission system of claim 55, wherein, the second moment of torsion conveyer is arranged in second district.
62, according to the described transmission system of claim 55, wherein, the second moment of torsion conveyer is arranged in the 6th district.
63, according to the described transmission system of claim 55, wherein, the 3rd moment of torsion conveyer is arranged in first district.
64, according to the described transmission system of claim 55, wherein, the 3rd moment of torsion conveyer is arranged in the 6th district.
65, according to the described transmission system of claim 55, wherein, the 4th moment of torsion conveyer is arranged in first district.
66, according to the described transmission system of claim 55, wherein, the 4th moment of torsion conveyer is arranged in second district.
67, according to the described transmission system of claim 55, wherein, the 4th moment of torsion conveyer is arranged in the 6th district.
68, according to the described transmission system of claim 55, wherein, the 5th moment of torsion conveyer is arranged in first district.
69, according to the described transmission system of claim 55, wherein, the 5th moment of torsion conveyer is arranged in the 4th district.
70, according to the described transmission system of claim 55, wherein, the 5th moment of torsion conveyer is arranged in the 5th district.
71, according to the described transmission system of claim 55, wherein, the 5th moment of torsion conveyer is arranged in the 6th district.
72, a kind of transmission system is used for moment of torsion is delivered to vehicle front-wheel from the engine output link of engine, and described transmission system comprises:
Speed changer has:
The speed changer case, it has: first end wall, second end wall and the housing parts that first end wall is linked to each other with second end wall; Wherein, described end wall and described housing parts limit a chamber;
Transmission input member;
The speed changer output link; Wherein, described front-wheel is aimed at and aimed to described transmission input member and described speed changer output link mutually, thereby limit variator axis, and wherein said driver input link and described driver output link are around described variator axis rotation; Described variator axis is with the engine shaft line parallel that is limited by described engine output link and separate, and described engine output link is around described engine axis rotation;
Be in first, second, third in described chamber and fourth line star gear train, each planetary gear set has ring gear member, sun gear member and frame, and described frame supports and described ring gear member and the intermeshing small gear of described sun gear member in rotatable mode;
Wherein, described speed changer case and described planetary gear set limit six districts in described chamber, comprising: first district, and it extends to the outer periphery that second planetary gear set also radially extends to described planetary gear set vertically from first end wall; Second district, it extends to the outer periphery that first planetary gear set also radially extends to described planetary gear set vertically from second planetary gear set; The 3rd district, it extends to the outer periphery that the third line star gear train also radially extends to described planetary gear set vertically from first planetary gear set; The 4th district, it extends to the outer periphery that fourth line star gear train also radially extends to described planetary gear set vertically from the third line star gear train; The 5th district, it extends to the outer periphery that second end wall also radially extends to described planetary gear set vertically from fourth line star gear train; With the 6th district, it extends axially in abutting connection with the first, second, third, fourth and the 5th district and extending radially outward to described housing parts and between first and second walls;
Wherein, the ring gear member of first planetary gear set is connected with common rotation in turn with the sun gear member of second planetary gear set; The ring gear member of second planetary gear set is connected with common rotation in turn with the frame of the third line star gear train; The ring gear member of the third line star gear train is connected with common rotation in turn with the frame of fourth line star gear train; The sun gear member of the third line star gear train is connected with common rotation in turn with the sun gear member of fourth line star gear train; The sun gear member shelves of first planetary gear set are connected to described speed changer case;
Five moment of torsion conveyers are used for optionally making the member of described planetary gear set to link to each other with static component or link to each other with other members of described planetary gear set; Wherein said moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
At least one rotatable element, it can be operated so that moment of torsion is delivered to described transmission input member from described engine output link.
73, according to the described transmission system of claim 72, further comprise:
Other planetary gear set, it has ring gear member, sun gear member and frame, one of member of described other planetary gear set is connected with common rotation with described speed changer output link, and each member of described other planetary gear set is concentric around described variator axis;
Differential attachment, it has first member, second member and the 3rd member; Wherein, first member of described differential attachment and described other planetary gear set is not connected with a connection in the member of common rotation with described speed changer output link with common rotation; Second member of described differential attachment is connected with common rotation with first front-wheel in the described front-wheel;
Live axle, itself and described variator axis are coaxial and pass first, second third and fourth planetary gear set; Wherein, the 3rd member of described differential attachment is connected with common rotation with second front-wheel in the described front-wheel by described live axle.
74, according to the described transmission system of claim 72, wherein, described at least one rotatable element is the ring-type transmitting element.
75, according to the described transmission system of claim 72, wherein, described five moment of torsion conveyers comprise:
The first moment of torsion conveyer, it can optionally engage with the ring gear member shelves with fourth line star gear train and be connected to described speed changer case;
The second moment of torsion conveyer, it can optionally engage so that the ring gear member of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 3rd moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the frame of second planetary gear set;
The 4th moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 5th moment of torsion conveyer, it can optionally engage so that the frame of second planetary gear set is connected with common rotation with the ring gear member of fourth line star gear train;
Wherein, the first moment of torsion conveyer be arranged in first, second, one of the 5th and the 6th district; The second moment of torsion conveyer is arranged in second, third and one of the 6th district; The 3rd moment of torsion conveyer is arranged in first, second and one of the 6th district; The 4th moment of torsion conveyer is arranged in one of the first, the 3rd and the 5th district; The 5th moment of torsion conveyer be arranged in first, second, one of the 5th and the 6th district.
76, according to the described transmission system of claim 75, wherein, the first moment of torsion conveyer is arranged in the 6th district; The second moment of torsion conveyer is arranged in the 3rd district; The 3rd moment of torsion conveyer is arranged in first district; The 4th moment of torsion conveyer is arranged in the 3rd district; The 5th moment of torsion conveyer is arranged in the 6th district.
77, according to the described transmission system of claim 75, wherein, the first moment of torsion conveyer is arranged in first district
78, according to the described transmission system of claim 75, wherein, the first moment of torsion conveyer is arranged in second district
79, according to the described transmission system of claim 75, wherein, the first moment of torsion conveyer is arranged in the 5th district.
80, according to the described transmission system of claim 75, wherein, the first moment of torsion conveyer is arranged in the 6th district.
81, according to the described transmission system of claim 75, wherein, the second moment of torsion conveyer is arranged in second district.
82, according to the described transmission system of claim 75, wherein, the second moment of torsion conveyer is arranged in the 3rd district.
83, according to the described transmission system of claim 75, wherein, the second moment of torsion conveyer is arranged in the 6th district.
84, according to the described transmission system of claim 75, wherein, the 3rd moment of torsion conveyer is arranged in first district.
85, according to the described transmission system of claim 75, wherein, the 3rd moment of torsion conveyer is arranged in second district.
86, according to the described transmission system of claim 75, wherein, the 3rd moment of torsion conveyer is arranged in the 6th district.
87, according to the described transmission system of claim 75, wherein, the 4th moment of torsion conveyer is arranged in first district.
88, according to the described transmission system of claim 75, wherein, the 4th moment of torsion conveyer is arranged in the 3rd district.
89, according to the described transmission system of claim 75, wherein, the 4th moment of torsion conveyer is arranged in the 5th district.
90, according to the described transmission system of claim 75, wherein, the 5th moment of torsion conveyer is arranged in first district.
91, according to the described transmission system of claim 75, wherein, the 5th moment of torsion conveyer is arranged in second district.
92, according to the described transmission system of claim 75, wherein, the 5th moment of torsion conveyer is arranged in the 5th district.
93, according to the described transmission system of claim 75, wherein, the 5th moment of torsion conveyer is arranged in the 6th district.
94, a kind of transmission system is used for moment of torsion is delivered to vehicle front-wheel from the engine output link of engine, and described transmission system comprises:
Speed changer has:
The speed changer case, it has: first end wall, second end wall and the housing parts that first end wall is linked to each other with second end wall; Wherein, described end wall and described housing parts limit a chamber;
Transmission input member;
The speed changer output link; Wherein, described front-wheel is aimed at and aimed to described transmission input member and described speed changer output link mutually, thereby limit variator axis, and wherein said driver input link and described driver output link are around described variator axis rotation; Described variator axis is with the engine shaft line parallel that is limited by described engine output link and separate, and described engine output link is around described engine axis rotation;
Be in first, second, third in described chamber and fourth line star gear train, each planetary gear set has ring gear member, sun gear member and frame, and described frame supports and described ring gear member and the intermeshing small gear of described sun gear member in rotatable mode;
Wherein, described speed changer case and first, second, third and fourth line star gear train in described chamber, limit six districts, comprise: first district, it extends to the outer periphery that second planetary gear set also radially extends to described planetary gear set vertically from first end wall; Second district, it extends to the outer periphery that the third line star gear train also radially extends to described planetary gear set vertically from second planetary gear set; The 3rd district, it extends to the outer periphery that fourth line star gear train also radially extends to described planetary gear set vertically from the third line star gear train; The 4th district, it extends to the outer periphery that first planetary gear set also radially extends to described planetary gear set vertically from fourth line star gear train; The 5th district, it extends to the outer periphery that second end wall also radially extends to described planetary gear set vertically from first planetary gear set; With the 6th district, it extends axially in abutting connection with the first, second, third, fourth and the 5th district and extending radially outward to described housing parts and between first and second walls;
Wherein, the ring gear member of first planetary gear set is connected with common rotation in turn with the sun gear member of second planetary gear set; The ring gear member of second planetary gear set is connected with common rotation in turn with the frame of the third line star gear train; The ring gear member of the third line star gear train is connected with common rotation in turn with the frame of fourth line star gear train; The sun gear member of the third line star gear train is connected with common rotation in turn with the sun gear member of fourth line star gear train; The sun gear member shelves of first planetary gear set are connected to described speed changer case;
Five moment of torsion conveyers are used for optionally making the member of described planetary gear set to link to each other with static component or link to each other with other members of described planetary gear set; Wherein said moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described transmission input member and described speed changer output link; With
At least one rotatable element, it can be operated so that moment of torsion is delivered to described transmission input member from described engine output link.
95, according to the described transmission system of claim 94, further comprise:
Other planetary gear set, it has ring gear member, sun gear member and frame, one of member of described other planetary gear set is connected with common rotation with described speed changer output link, and each member of described other planetary gear set is concentric around described variator axis;
Differential attachment, it has first member, second member and the 3rd member; Wherein, first member of described differential attachment and described other planetary gear set is not connected with a connection in the member of common rotation with described speed changer output link with common rotation; Second member of described differential attachment is connected with common rotation with first front-wheel in the described front-wheel;
Live axle, itself and described variator axis are coaxial and pass first, second third and fourth planetary gear set; Wherein, the 3rd member of described differential attachment is connected with common rotation with second front-wheel in the described front-wheel by described live axle.
96, according to the described transmission system of claim 94, wherein, described at least one rotatable element is the ring-type transmitting element.
97, according to the described transmission system of claim 94, wherein, described five moment of torsion conveyers comprise:
The first moment of torsion conveyer, it can optionally engage the sun gear member that is connected to first planetary gear set with the ring gear member with fourth line star gear train, and the ring gear member shelves with fourth line star gear train are connected to described speed changer case thus;
The second moment of torsion conveyer, it can optionally engage connecting the sun gear member of second planetary gear set, and the ring gear member of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 3rd moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the frame of second planetary gear set;
The 4th moment of torsion conveyer, it can optionally engage so that the frame of first planetary gear set is connected with common rotation with the sun gear member of the third line star gear train;
The 5th moment of torsion conveyer, it can optionally engage so that the frame of second planetary gear set is connected with common rotation with the ring gear member of fourth line star gear train;
Wherein, the first moment of torsion conveyer is arranged in one of the 4th and the 5th district; The second moment of torsion conveyer is arranged in one of first and second districts; The 3rd moment of torsion conveyer is arranged in one of the first, the 4th and the 6th district; The 4th moment of torsion conveyer is arranged in first, second and one of the 6th district; The 5th moment of torsion conveyer is arranged in one of the first, the 3rd, the 4th and the 6th district; With
Wherein, described moment of torsion conveyer can optionally engage with various combination, to realize eight kinds of forward speed ratios and realize the inverted speed ratio between described input link and described output link.
98, according to the described transmission system of claim 97, wherein, the first moment of torsion conveyer is arranged in the 4th district; The second moment of torsion conveyer is arranged in second district; The 3rd moment of torsion conveyer is arranged in the 6th district; The 4th moment of torsion conveyer is arranged in second district; The 5th moment of torsion conveyer is arranged in the 3rd district.
99, according to the described transmission system of claim 97, wherein, the first moment of torsion conveyer is arranged in the 4th district.
100, according to the described transmission system of claim 97, wherein, the first moment of torsion conveyer is arranged in the 5th district.
101, according to the described transmission system of claim 97, wherein, the second moment of torsion conveyer is arranged in first district.
102, according to the described transmission system of claim 97, wherein, the second moment of torsion conveyer is arranged in second district.
103, according to the described transmission system of claim 97, wherein, the 3rd moment of torsion conveyer is arranged in first district.
104, according to the described transmission system of claim 97, wherein, the 3rd moment of torsion conveyer is arranged in the 4th district.
105, according to the described transmission system of claim 97, wherein, the 3rd moment of torsion conveyer is arranged in the 6th district.
106, according to the described transmission system of claim 97, wherein, the 4th moment of torsion conveyer is arranged in first district.
107, according to the described transmission system of claim 97, wherein, the 4th moment of torsion conveyer is arranged in second district.
108, according to the described transmission system of claim 97, wherein, the 4th moment of torsion conveyer is arranged in the 6th district.
109, according to the described transmission system of claim 97, wherein, the 5th moment of torsion conveyer is arranged in first district.
110, according to the described transmission system of claim 97, wherein, the 5th moment of torsion conveyer is arranged in the 3rd district.
111, according to the described transmission system of claim 97, wherein, the 5th moment of torsion conveyer is arranged in the 4th district.
112, according to the described transmission system of claim 97, wherein, the 5th moment of torsion conveyer is arranged in the 6th district.
CN 200910006110 2008-01-24 2009-01-23 Wrap-around driveline with multi-speed transmission Active CN101493136B (en)

Applications Claiming Priority (6)

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US2320608P 2008-01-24 2008-01-24
US61/023206 2008-01-24
US61/023,206 2008-01-24
US12/178705 2008-07-24
US12/178,705 2008-07-24
US12/178,705 US8137233B2 (en) 2008-01-24 2008-07-24 Wrap-around driveline with multi-speed transmission

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103097167A (en) * 2010-07-13 2013-05-08 Gkn动力传动***国际有限责任公司 Electric drive for a motor vehicle
CN105658994A (en) * 2013-10-28 2016-06-08 马自达汽车株式会社 Automatic transmission

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Publication number Priority date Publication date Assignee Title
US4368649A (en) * 1980-07-01 1983-01-18 Ford Motor Company Automatic transaxle driveline having four forward driving ratios and a single reverse ratio
US5167593A (en) * 1991-08-02 1992-12-01 Ford Motor Company Nonsynchronous four-speed transaxle for automotive vehicles
US5618242A (en) * 1995-09-06 1997-04-08 Wu; Cheng-Hsiung Apparatus for torque-converter clutch transmission
US7285069B2 (en) * 2005-09-29 2007-10-23 General Motors Corporation Multi-speed power transmission
DE102006016192B4 (en) * 2006-04-06 2011-08-18 ZF Friedrichshafen AG, 88046 Multi-speed transmission

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103097167A (en) * 2010-07-13 2013-05-08 Gkn动力传动***国际有限责任公司 Electric drive for a motor vehicle
CN103097167B (en) * 2010-07-13 2015-11-25 Gkn动力传动***国际有限责任公司 For the electric drive of power actuated vehicle
CN105658994A (en) * 2013-10-28 2016-06-08 马自达汽车株式会社 Automatic transmission

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