CN100534824C - Integrated motor and clutch assembly - Google Patents

Abstract

An integrated motor and clutch assembly (20) is provided, which includes a housing (21) that rotatably supports an input shaft (24) and an output shaft (26). A selectively engageable friction clutch (23) is disposed between the input shaft and the output shaft for transferring torque therebetween. The friction clutch includes an outer hub (35) connected for rotation with the output shaft (26). The integrated motor and clutch assembly (20) also includes a motor (22) having a rotor (134) non-rotatably connected to the outer hub (35) of the friction clutch (23) and disposed coaxial with the input und output shafts. The motor (22) also includes a stator (132) secured to the housing and disposed concentric with the rotor.

Description

Single-piece motor and clutch pack

Technical field

The present invention relates generally to a kind of power-transfer clutch and motor/generator device, is suitable for hybrid power system, particularly, relates to single-piece power-transfer clutch and motor/generator assembly.

Background technology

Use two or more primary movers to come the hybrid power automobile power system of powered vehicle to be known in the art.The representative type hybrid power system uses combustion engine, can combine with electrical motor on strategy, provides driving torque to wheel.

So-called " parallel mixing " power system is developed, and it is joined in parallel electrical motor between vehicle motor and transmission device usually.In a known parallel hybrid powertrain, motor rotor is directly connected to engine output shaft.In such parallel hybrid powertrain, must operate master clutch makes driving engine release the drive system usually.Use independent master clutch and motor to require between driving engine and the driving system very large space is arranged, to hold the width dimensions of parts.This restriction has increased the overall dimensions and the weight of hybrid power system, and this is undesirable for making hybrid vehicle.

Summary of the invention

The invention provides a kind of single-piece motor and clutch pack, it comprises housing, supports the rotation of input shaft and output shaft.The selectivity oncoming clutch is arranged between input shaft and the output shaft transmitting torque betwixt.Power-transfer clutch comprises outer hub, connects into to rotate with output shaft.Single-piece motor and clutch pack also comprise motor, and it has the rotor of the outer hub that can not be rotationally coupled to power-transfer clutch, and rotor is arranged to the input and output axle coaxial.Motor also comprises the stator that is fixed to housing, and stator is arranged to rotor concentric.Motor operationally produces the torque actuated output shaft and rotates, and replenishes or is independent of the torque that input shaft provides by power-transfer clutch.

In an embodiment of the present invention, the power-transfer clutch of selectivity operation comprises the ball oblique mechanism that is used to produce gripping power, the ball oblique mechanism comprises annular control desk, and control desk has a plurality of circumference control inclined-planes that form on the control desk surface, and the axial depth on control inclined-plane changes.The ball oblique mechanism also comprises the rolling member of equal number, and rolling member occupies control inclined-plane separately; And activation plate, it is installed to output shaft by first free-wheel clutch, and free-wheel clutch has the pivot center with the coaxial of control desk.Described activation plate has a plurality of activation ramp, and its quantity, shape and radial position and control inclined-plane are basic identical.Activation ramp to small part is controlled the inclined-plane relatively, and each rolling member is contained in an activation ramp and controls between the inclined-plane separately.Control desk vertically with rotatable relative movably activation plate setting, control desk has radially the annular control extension that extends.Activation plate has the annular activation extension that radially extends.The annular intermediate plate can not be rotationally coupled to output shaft, and is arranged on control extension and actuating between the extension.

In same embodiment of the present invention, power-transfer clutch also comprises coil, can form electromagnetic field when introducing electric current in the coil in magazine.Magazine is installed to input shaft by second free-wheel clutch.Clutch component also is arranged on power-transfer clutch, when applying the clamping load of ball oblique mechanism generation, by rubbing and being connected input shaft rotationally to output shaft.When introducing electric current in the coil, generating an electromagnetic field rotationally, the pickup coil framework arrives the control extension.In addition, electromagnetic field couples control extension is to intermediate plate, and the coupling intermediate plate is to actuating extension.

By following detailed introduction and with reference to the accompanying drawings to preferred embodiment, the those skilled in the art can more clearly understand various aspects of the present invention.

Description of drawings

Fig. 1 is the section drawing of single-piece motor of the present invention and clutch pack;

Fig. 2 is the single-piece motor of Fig. 1 and the partial cross section figure of clutch pack;

Fig. 3 is the front elevation of the activation plate seen of the direction in the face of control desk, demonstrates a plurality of at the rolling member of actuating and controlling between the inclined-plane;

Fig. 4 is the illustrative partial view along the ball oblique mechanism of the single-piece motor of the line IV-IV of Fig. 3 and clutch pack, demonstrates the ball oblique mechanism that is in non-actuation position;

Fig. 5 is along the illustrative partial view of the ball oblique mechanism of actuating of the line IV-IV of Fig. 3, and demonstrates the ball oblique mechanism that is in actuation position;

Fig. 6 is the single-piece motor of Fig. 1 of VI-VI along the line and the part transparent view of clutch pack;

Fig. 7 is the single-piece motor of Fig. 1 of VII-VII along the line and the part front elevation of clutch pack;

Fig. 8 is the transparent view of cutting open of the clutch pack of Fig. 1.

The specific embodiment

For convenience will adopt some term in the introduction below, just the relevant portion employing can not regard as have restricted." to the right " and " left " in using the accompanying drawing of term, be finger direction." inside " and " outside " refers to the geometric centre and the direction of leaving geometric centre towards device respectively." make progress " and " downward " is finger direction in using the accompanying drawing of term.All terms above-mentioned comprise its common derivative and are equal to speech.

Though it is for automotive power that the front is introduced, hybrid power system especially, the present invention can be used for responding one or more control signals, proofreaies and correct any two turning cylinders rotationally.Such different device includes but not limited to: differential, engine retarder, transmission brake, foundation brakes (foundation brake), coarst brake, change speed gear box and other devices, in addition, the present invention can be used for replenishing the power that transmits between any two turning cylinders, or by a turning cylinder transmission power that is independent of other.

With reference to figure 1, shown section drawing according to single-piece motor of the present invention and clutch pack 20.Single-piece motor and clutch pack 20 (below be called assembly 20) comprise housing 21, have wherein held the motor 22 and power-transfer clutch 23 parts of assembly 20.Used term " motor " comprises any device that is used for converting electrical energy to machinery input in the literary composition, and the device that can switch machine be input to electric energy.

Assembly 20 comprises the rotational power source that is connected to, as the combustion engine (not shown), input shaft 24.The clutch part 23 of assembly 20 is used for rotatably connecting input shaft 24 to output shaft 26, also can be from the input shaft to the driving system.

In order to introduce the embodiment that Fig. 1 shows, input shaft 24 demonstrates the right side that is positioned at assembly 20.Each parts of assembly 20 generally rotate, and around rotation axis 28 symmetries.Input shaft 24 is supported in housing 21 rotationally by clutch shaft bearing 30, and output shaft 26 is subjected to second bearing 32 rotationally and supports.Output shaft 26 is connected to clutch outer hub 35, and outer hub has a plurality of tooth bars 36 that are positioned at its inside face.Input shaft 24 is connected to clutch inner hub 38, and interior cover joint has the tooth bar 39 that is positioned at its outer circumference surface.The implication that should be appreciated that " input shaft " and " output shaft " can be exchanged according to the direction of the torque flow of passing through assembly 20.

The clutch part 23 of assembly 20 also comprises ball oblique mechanism 40, and it has control desk 42, activation plate 44 and a plurality of rolling member 45A, 45B, the 45C (see figure 3) can be according at each inclined- plane 46A, 46B, 46C and 47A, 47B, the relative position among the 47C is separated control desk 42 and activation plate 44.When activation plate 44 when control desk 42 leaves, apply force to pressure plate 50 by thrust baring 48, compression clutch component 52 provides frictional rotation to connect between clutch inner hub 38 and outer hub 35.Clutch component 52 comprises a plurality of drive plates 54, cover joint 38 in drive plate 54 can not be rotationally coupled to by tooth bar 39; With a plurality of follower plates 56, follower plate 56 can not be linked outer hub 35 rotationally by tooth bar 36.Pressure plate 50 can not be rotationally coupled to outer hub 35 by tooth bar 36, so that rotate with clutch outer hub 35, can move freely vertically when needing.

In addition, the implication of " follower plate " and " drive plate " depends on the torque direction by drive wire.For example, if driving engine provides power by input shaft 24 to vehicle, the implication of these terms is traditional, and when vehicle is subjected to the glancing impact of driving engine, then implication needs conversely.

Intermediate plate 58 is connected to clutch outer hub 35 by tooth bar 36, and by tooth bar 36, intermediate plate 58 can not connect outer hub rotationally, so that rotate with outer hub 35, but can freedom move vertically when needed.Intermediate plate 58 is being controlled extension 42A and is being actuated between the extension 44A vertically.By control slip joint 42B (see figure 6), control extension 42A is connected to control desk 42, by actuating slip joint 44B (see figure 7), actuates extension 44A and is connected to activation plate 44.Control extension 42A and the slip joint 42B and the 44B that actuate extension 44A allow control desk 42 and activation plate 44 to move respectively, control extension 42A simultaneously, intermediate plate 58 and actuate extension 44A and keep in touch.Control desk 42 is subjected to the axial restraint of thrust baring 60, and it reacts on the shaft flange 62 that is connected to input shaft 24.

Particularly, between power-transfer clutch 23 joint aging times, control extension 42A and magazine 64 and intermediate plate 58 magnetic interact.Actuate extension 44A and intermediate plate 58 magnetic and friction interaction.Control extension 42A, intermediate plate 58 and actuate extension 44A direct contact mutually, or friction material is connected to control extension 42A, intermediate plate 58 or an one or both sides of actuating extension 44A.The regional 66A of a plurality of low permeabilities that circumferentially extend, 66B, 66C and 66D, as non-magnetic material or groove, respectively at magazine 64, intermediate plate 58, control extension 42A with actuate extension 44A and form, provide suitable magnetic circuit.As shown in Figure 1, the zone of low permeability is axially aligned substantially at specific position of rotation.

First free-wheel clutch 70 is used to support the activation plate 44 on the input shaft 24.First free-wheel clutch 70 is arranged to, during when input shaft 24 rotation and along the specific direction transmitting torque, as when driving engine to the vehicle transmitting power, the torque on the power-transmission system when input shaft is delivered to output shaft 26, the rotation of locking activation plate 44.

Second free-wheel clutch 72 is used to support the magazine 64 on the input shaft 24.Relative first free-wheel clutch 70 in the position of second free-wheel clutch 72, when input shaft 24 when certain direction is rotated, as the Jake brake vehicle, the torque by power-transmission system with above introduce direction when reverse, the rotation of second clutch lockable control desk 42.

Coil pack 74, is generated an electromagnetic field and actuates ball oblique mechanism 40 by signal wire (SW) 76 electric excitations by the control unit (not shown).Coil pack 74 comprises coil 78 that is installed to housing 21 and the coil stator 80 that is partly surrounded by magazine 64.Coil stator 80 and magazine 64 are all used the ferromagnetic material manufacturing, allow electromagnetic field to pass through.

When coil pack 74 is charged, control desk 42 and control extension 42A, intermediate plate 58, activation plate 44 with actuate extension 44A Electromagnetic Drive to, form friction and be rotationally connected.Depend on the friction coefficient and the torque transmitted of axial load, material, some slips may occur.This structure can make ball oblique mechanism 40 keep engaging, even the torque transmitted direction is reverse in conjunction with the operation of first and second free-wheel clutchs 70,72.

Fig. 3 has more clearly illustrated the control inclined-plane 46A that control desk 42 forms, 46B, 46C and the activation ramp 47A that forms, 47B, 47C on activation plate 44.Control inclined- plane 46A, 46B, 46C be to the relative activation ramp 47A of small part, 47B, 47C, the degree of depth on each inclined-plane all changes, and is increased to the other end from an end.Rolling member 45A, 45B, 45C contact the control inclined-plane 46A relative separately with the edge simultaneously, 46B, and 46C and activation ramp 47A, 47B, 47C rolls.Rolling member 45A, 45B, 45C demonstrate in Fig. 4 and are in non-actuation position, and each rolling member 45A, 45B, 45C are in least depth contact control and activation ramp 46A separately, 46B, 46C; 47A, 47B, 47C makes separation distance 80 minimums.When ball oblique mechanism 40 is actuated by charged coil 78, and exist in the hypothesis clutch component 52 and slide, control desk 42 moves relative to activation plate 44 conter clockwises, makes rolling member 45A, 45B, 45C cross the control inclined-plane 46A of three pairs of relative different depths, 46B, 46C and activation ramp 47A, 47B, 47C.When control desk 42 continues when activation plate 44 is rotated, separation distance 80 increases, the gripping power on the increase clutch component 52, as shown in Figure 5.

Still with reference to the accompanying drawings 1, as mentioned above, output shaft 26 can not be rotationally coupled to clutch outer hub 35, and outer hub comprises the tooth bar 36 that extends from its inside face, can not engage follower plate 56 rotationally.Clutch inner hub 38 can not be rotationally coupled to input shaft 24, can rotate relative to clutch outer hub 35, unless power-transfer clutch 23 full engagements are not slided.Tooth bar 36 extend to can not rotational engagement intermediate plate 58 and pressure plate 50.Cover joint 38 when ball oblique mechanism 40 is actuated by electrified coil 78, was pivotally connected to follower plate 56 by friction in drive plate can not be rotationally coupled to.When coil 78 is charged, produce electromagnetic field by stator 80 and framework 64.Stator 80 and coil 78 are installed to housing 21.

Embodiment shown in Figure 1 is not to housing 21 applied loads, because the power-transfer clutch gripping power is clipped in the flange 82 on the input shaft 24 and acts between the thrust baring 84 of flange 82, and at the opposite side of clutch component 52, the power-transfer clutch gripping power is by thrust baring 60 carryings that act on shaft flange 62.Shaft flange 62 passes through set collar 86 axial support in input shaft 24.

Actuate extension 44A and use the flange 88 on the activation plate 44 to be connected to control desk 42, make these two members free to rotate, but be limited to it to axial at interval.Flange 88 is used for restriction and actuates extension 44A, the interval between intermediate plate 58 and the control extension 42A, and when making coil pack 74 charged, these members are engage ball oblique mechanism 40 suddenly not.Activation plate 44 moved axially when flange 88 permissions locked when free-wheel clutch 70 relative input shafts 24.

Ball thrust bearing 48 separates activation plate 44 and pressure plate 50 allow activation plate 44 and pressure plate 50 independent rotation.When ball oblique mechanism 40 was actuated, pressure plate 50 is loads clutch pack 52 vertically.Clutch component 52 is pushed clutch outer hub 35 to, and outer hub is fixing to transmit axial force to thrust baring 84 and flange 82 by attaching parts 90.In this way, whole clamping loads of clutch component 52 are maintained, and are not delivered to housing 21.Thrust baring 104 is arranged between the pump cover part 106 of framework 64 and protecgulum 108, is used for providing axial support to framework 64.Protecgulum 108 is connected to housing 21.

Power-transfer clutch 23 in transmission front bearing 30 and the rear bearing 32 main support housings 21.Block bearing 110 contact output shaft 26 and input shafts 24 also provide the supporting to power-transfer clutch 23, allow simultaneously to relatively rotate between input shaft 24 and the output shaft 26.Sealing member 112 can prevent the oil leakage in the housing 21.

A plurality of tooth bars 114 are used for connecting rotationally clutch outer hub 35 to output shaft 26, help the assembling of clutch components.A plurality of tooth bars 116 also are used for connecting rotationally input shaft 24 to clutch inner hub 38.Tooth bar 114 and 116 combinations provide from input shaft 24 by the torque path of clutch component 52 to output shaft 26.Therefore, when charged and ball oblique mechanism 40 is actuated when coil pack 74, driving torque by power-transfer clutch 23 enters clutch component 52 from input shaft 24 by tooth bar 116 arrival clutch inner hub 38 normally, arrives clutch outer hub 35 then, and arrives output shafts 26 by tooth bar 114.When driving system when follower mode is worked, by the torque reversal of power-transfer clutch 23, input shaft 24 is as output shaft under the follower mode, output shaft 26 is as input shaft.

Assembly 20 also comprises oil pump 118, and the form that it has rotary pump is used to provide the band pressure oil stream by clutch component 52, ball oblique mechanism 40 and the motor 22 of rotation, and cooling and lubrication source are provided.Oil pump 118 comprises at least one port one 20 (Fig. 2), and it is connected to oil return pipe road (not shown), provides the oil stream of automatic heat-exchanger (not shown).Discharge by independent oil sump line (not shown) the back spontaneously.Oil flows into power-transfer clutch by oily supply orifice 122, flows into the inner chamber 124 of input shaft 24 then, is assigned to clutch component 52 and ball oblique mechanism 40 by different oilholes 126,127 respectively.Connector 128 is used to hold cooling/lubricating oil stream, and these oil are transported to power-transfer clutch from outside oil sources by axocoel 124 under the driving of pump 118.The oil stream that leaves power-transfer clutch 23 enters motor 22 by the hole 130 of a series of clutch outer hub 35.

With reference to figure 2 and 8, Fig. 2 and Fig. 8 have shown the partial cross section figure and the section drawing of assembly 20 respectively.Fig. 2 has shown the planar view of clutch outer hub 35, has shown the motor part 22 of assembly 20 and the section drawing of output shaft 26.Motor 22 comprises stator 132 and rotor 134.Stator 132 is fixed to housing 21, and rotor 134 is fixed to clutch outer hub 35.Stator 132 comprises a plurality of magnetic poles 136, is connected to the housing 21 along circumference around rotor 134.Magnetic pole 136 is centered on by conductive winding 138.Rotor 134 comprises a plurality of parts, has known magnetic characteristic separately.The each several part of rotor 134 can not be rotationally coupled to clutch outer hub 35, can rotate together.

Motor 22 can utilize given machinery input to produce electric energy and convert electric energy to machinery output.Identical or the similar control unit that is used for control clutch 23 can be used to control the operation of motor 22.The control unit operation of controlling motor 22 able to programme produces electric energy and is stored in the electrical storage device (not shown), as battery or battery pack.Control unit is also able to programme to drive the rotation of clutch outer hub 35, provide driving torque to arrive output shaft 26 and by power-transfer clutch 23 to input shaft 24.

Operation

For the operation of illustrated components 20, at first consider torque flow from input shaft 24 to output shaft 26 situation, input shaft and output shaft 24,26 are looked from input shaft 24 and are all clockwise rotated, coil pack 74 is charged, motor 22 does not have action.This situation is similar to the state that the launched machine of vehicle drives, and power-transfer clutch is as master clutch.In this case, 70 lockings of first free-wheel clutch, 72 releases of second free-wheel clutch allow to relatively rotate along certain direction between control desk 42 and the activation plate 44, enlarge ball oblique mechanism 40.Control desk 42 is by controlling extension 42A frictional connection to magazine 64, second free-wheel clutch 72 by release, allow it with the speed of output shaft 26 or be slower than this speed and rotate (be that input shaft 24 and output shaft 26 clockwise rotate, and magazine 64 can freely rotate) relative to input shaft 24 anticlockwise directions.Therefore magazine 64 can be identical or the speed that is slower than output shaft 26 rotate.

When activation plate 44 was rotated with input shaft 24 by 70 lockings of first free-wheel clutch, intermediate plate 58 rotated with output shaft 26.If sliding appears in clutch component 52, then input shaft 24 will rotate with the high slightly speed of specific output axle 26.Therefore, intermediate plate 58 will rotate with output shaft 26, but that control desk 42 can not specific output axle 26 rotates is faster because its by control extension 42A magnetic/frictional connection to magazine 64, only allow with the speed of output shaft 26 or slower speed rotation.Intermediate plate 58 allows to rotate with the speed or the faster speed of output shaft 26, because first free-wheel clutch 70 locks also by actuating extension 44A frictional connection to activation plate 44.Therefore, if sliding appears in clutch component 52, then input shaft 24 rotates with specific output axle 26 faster speed, activation plate 44 will be to rotate (at least in the short time) than control desk 42 faster speed, this will further actuate ball oblique mechanism 40, increase the separation distance 80 between control desk 42 and the activation plate 44.The separation increase will improve pressure plate 50 and move axially the gripping power that puts on clutch component 52.This then reduced slippage in the clutch component 52, improved being rotationally connected between input shaft 24 and the output shaft 26.

The consideration torque flow is opposite with the earlier examples direction now attempts to rotate situation faster than input shaft 24 with output shaft 26.When power-transfer clutch was used as master clutch, this situation was similar to the vehicle that carries out Jake brake.Input shaft 24 and output shaft 26 be still clockwise direction rotation all, and coil pack 74 is charged.First free-wheel clutch, 70 non-lockings, 72 lockings of second free-wheel clutch allow to relatively rotate between control desk 42 and the activation plate 44, further enlarge ball oblique mechanism 40.When coil 78 was charged, to magazine 64, it was pivotally connected to output shaft 26 by second free-wheel clutch 72 that locks to control desk 42 by control extension 42A frictional connection.Therefore, magazine 64 and control desk 42 rotate with output shaft 26 at least equally soon.Because actuate extension 44A towards intermediate plate 58 electromagnetic attactions, activation plate 44 will be frictionally slowed to the speed of input shaft 24.This allows, because first free-wheel clutch, 70 non-lockings allow activation plate 44 to rotate with specific output axle 26 slower speed.In this way, the invention enables activation plate 44 to rotate along the direction identical, cause the axial separation distance 80 between control desk 42 and the activation plate 44 to increase, and make the corresponding increase of the clamping load that acts on the clutch component 52 with earlier examples relative to control desk 42.

Therefore, clutch part of the present invention when torque utilizes ball oblique mechanism 40 to flow through power-transfer clutch with either direction, can make the clamping load of clutch component 52 increase.When coil 78 is charged, use the clutch component 52 continuous load operation characteristics under the operation mode that first free-wheel clutch 70 on the activation plate 44 and the second clutch 72 on the magazine 64 can be provided at any kind.Use intermediate plate 58 to increase the stability of ball oblique mechanism 40, and then improved the controller performance of power-transfer clutch.

Another situation that should consider is that motor 22 provides torque actuated clutch outer hub 35 to rotate.Under a kind of operation mode, motor 22 work and power-transfer clutch 23 are disengaged and drive output shaft 26 and rotate, promptly during sliding appears in clutch component 52.This operation mode is similar to motor 22 by output shaft 26, and the power that provides by vehicle motor is provided, and provides power to wheel and vehicle drive system,

In another kind of operation mode, apply the torque that motor 22 provides, power-transfer clutch engages, and introduces as top first kind of situation, and torque is delivered to output shaft 26 from input shaft 24 by clutch component 52.This operation mode is similar to the torque of using motor 22 to produce and replenishes the torque that vehicle motor provides.

Under another operation mode, apply the torque that motor 22 provides, power-transfer clutch engages, and introduces as top second kind of situation, and torque is delivered to input shaft 24 from output shaft 26 by clutch component 52.This operation mode is similar to uses motor 22 as starter motor, and rotation drives input shaft to crank; Or startup vehicle motor.In addition, the torque that motor 22 provides can be used for making driving engine synchronous, helps the vehicle drive system downshift.

Also having under the operation mode, motor 22 can be used as electrical generator, and the machinery input of the clutch outer hub 35 of rotating is converted to electric energy.Under first kind of inferior operation mode, apply the torque that is provided to motor 22, power-transfer clutch 23 engages, and torque is transmitted output shafts 26 from input shaft 24, as first kind of situation introducing above.This operation mode is similar to operation and has the driving engine of neutral driving system to power source charges.Under second kind of inferior operation mode, apply the torque that is provided to motor 22, and power-transfer clutch 23 engages, torque is delivered to input shaft 24 from output shaft 26, introduces as top first kind of situation.This operation mode is similar to the vehicle that carries out Jake brake, and motor 22 is as the braking energy that replenishes driving engine, simultaneously to power source charges or disperse the electric energy of generation.This operation mode also is similar to utilizes motor 22 to obtain the driving system upshift that energy helps vehicle from system.Under the third time operation mode, motor 22 can be used as electrical generator, and power-transfer clutch 23 is thrown off, and main purpose is a regenerative brake.

Although single-piece motor of the present invention and clutch pack are introduced as the electromagnetic actuation friction clutch, should be confined to this.Selectively, assembly 20 can be included in the power-transfer clutch of the other types of transmitting torque between input shaft and the output shaft, and it includes but not limited to, manually operated, hydraulically operated or compressed-air controlled friction clutch.

Although some preferred embodiment of the present invention is introduced, the present invention is not limited in the literary composition embodiment that introduces and show of institute, and it just implements the explanation of optimal mode of the present invention.The person of ordinary skill in the field will be appreciated that and can carry out some improvement and variation to the present invention that these improvement and variation still belong to the spirit and scope that are defined by the claims.

Claims (20)

1. single-piece motor and clutch pack (20) comprising:

Housing (21) supports input shaft (24) and output shaft (26) and rotates;

The alternative friction clutch (23) that engages is arranged between input shaft and the output shaft in order to transmitting torque betwixt; With

Motor (22) comprises rotor (134), is arranged to input shaft (24) and output shaft (26) coaxially, also comprises stator (132), its be fixed to housing (21) and be arranged to rotor (134) concentric,

It is characterized in that described friction clutch (23) comprises outer hub (35), it connects into output shaft (26) and rotates, and described rotor can not be rotationally coupled to the outer hub (35) of friction clutch (23).

2. single-piece motor as claimed in claim 1 and clutch pack is characterized in that, described friction clutch (23) engages by electromagnetism.

3. single-piece motor as claimed in claim 1 and clutch pack, it is characterized in that, described friction clutch (23) comprises clutch component (52), by rubbing and being connected input shaft (24) and output shaft (26) rotationally, with the ball oblique mechanism (40) that is used for loads clutch pack (52), so the load on the clutch component (52) keeps irrelevant with the torque direction that transmits by single-piece motor and clutch pack (20).

4. single-piece motor as claimed in claim 3 and clutch pack is characterized in that, described ball oblique mechanism (40) comprising:

Annular control desk (42) with pivot center, described control desk (42) comprise that (46C), the axial depth on described control inclined-plane changes for 46A, 46B on a plurality of circumference control inclined-planes that form on the surface of control desk (42);

With the rolling member (45) of described circumference control inclined-plane equal number, rolling member occupy control separately the inclined-plane (46A, 46B, 46C) and

Activation plate (44), it has the pivot center with the coaxial of control desk (42), activation plate has a plurality of activation ramp (47), it controls inclined-plane (46A relatively to small part, 46B 46C), makes each rolling member (45) remain on an activation ramp (47) and control inclined-plane (46A separately, 46B, 46C) between.

5. single-piece motor as claimed in claim 4 and clutch pack is characterized in that, described control desk (42) is connected to control extension (42A), and described activation plate (44) is connected to actuates extension (44A).

6. single-piece motor as claimed in claim 5 and clutch pack, it is characterized in that, described single-piece motor and clutch pack also comprise at least one slip joint (42B), it is arranged between control desk (42) and the control extension (42A), can not connect control desk (42) rotationally to control extension (42A), allow simultaneously to move to axial between control desk (42) and the control extension (42A).

7. single-piece motor as claimed in claim 5 and clutch pack, it is characterized in that, also comprise at least one slip joint (44B), be arranged on activation plate (44) and actuate between the extension (44A), can not connect activation plate (44) rotationally to actuating extension (44A), allow activation plate (44) simultaneously and actuate between the extension (44A) to move to axial.

8. single-piece motor as claimed in claim 5 and clutch pack is characterized in that, described control extension (42A) comprises the circumferential extension district (66C) of a plurality of low permeabilities.

9. single-piece motor as claimed in claim 5 and clutch pack is characterized in that, describedly actuate the circumferential extension district (66D) that extension (44A) comprises a plurality of low permeabilities.

10. single-piece motor as claimed in claim 5 and clutch pack, it is characterized in that, described friction clutch (23) comprises annular intermediate plate (58), and it can not be rotationally coupled to outer hub and be arranged on control extension (42A) and actuating between the extension (44A).

11. single-piece motor as claimed in claim 10 and clutch pack is characterized in that, described intermediate plate (58) comprises the circumferential extension district (66B) of a plurality of low permeabilities.

12. single-piece motor as claimed in claim 10 and clutch pack, it is characterized in that, described friction clutch (23) also comprises coil (74), can form electromagnetic field in magazine (64) when coil (74) is introduced electric current, wherein magazine (64) is installed to input shaft (24) by second free-wheel clutch (72).

13. single-piece motor as claimed in claim 12 and clutch pack, it is characterized in that, when introducing electric current, coil (74) forms electromagnetic field, so that pickup coil framework (64) is to control extension (42A) rotationally, coupling control extension (42A) is to intermediate plate (58), and coupling intermediate plate (58) is to actuating extension (44A).

14. single-piece motor as claimed in claim 12 and clutch pack is characterized in that, described magazine (64) comprises the circumferential extension district (66A) of a plurality of low permeabilities.

15. single-piece motor as claimed in claim 3 and clutch pack is characterized in that, also comprise clutch inner hub (38), it can not be rotationally coupled to clutch component (52) and input shaft (24).

16. single-piece motor as claimed in claim 4 and clutch pack, it is characterized in that, described single-piece motor and clutch pack also comprise be arranged on first thrust baring (84) between clutch outer hub (35) and the input shaft (24) and be arranged on control desk (42) and output shaft (26) between second thrust baring (84).

17. single-piece motor as claimed in claim 1 and clutch pack is characterized in that, also comprise the oil pump (118) that input shaft (24) drives, and are used for to single-piece motor and clutch pack (20) fuel feeding.

18. single-piece motor as claimed in claim 17 and clutch pack is characterized in that, also comprise the axocoel (124) that input shaft (24) upward forms, and are used for distributing oil to friction clutch (23) or motor (22).

19. single-piece motor as claimed in claim 1 and clutch pack is characterized in that, described motor (22) can be used as motor or electrical generator.

20. single-piece motor and clutch pack (20) comprising:

Housing (21) supports input shaft (24) and output shaft (26) and rotates;

Alternative oncoming clutch (23) is arranged between input shaft (24) and the output shaft (26) in order to transmitting torque betwixt and comprises outer hub (35);

Motor (22) comprises rotor (134) and stator (132), and this rotor is coaxial with input shaft (24) and output shaft (26); It is last and concentric with rotor (134) that this stator is fixed to housing (21);

It is characterized in that, described power-transfer clutch (23) comprises the ball oblique mechanism (40) that is used to produce gripping power, it comprises the annular control desk (42) with pivot center, described control desk (42) has a plurality of circumference control inclined-plane (46A that form on the surface of control desk (42), 46B, 46C), described control inclined-plane (46A, 46B, axial depth 46C) changes; With the rolling member (45) of described control inclined-plane equal number, rolling member occupy separately control inclined-plane (46A, 46B, 46C); And activation plate (44), being installed to output shaft (26) by first free-wheel clutch (70), first free-wheel clutch has the pivot center with the coaxial of control desk (42); Described activation plate (44) has a plurality of activation ramp (47), its quantity, shape and radial position and control inclined-plane (46A, 46B, 46C) basic identical, wherein activation ramp (47) is controlled inclined-plane (46A at least in part relatively, 46B, 46C), make each rolling member (45) be contained in an activation ramp (47) and control inclined-plane (46A separately, 46B, 46C), described control desk (42) is provided with rotatable relative movably described activation plate (44) vertically, and control desk (42) has the annular control extension (42A) that radially extends, and activation plate (44) has the annular activation extension (44A) that radially extends, annular intermediate plate (58) can not be rotationally coupled to outer hub (35), and is arranged on control extension (42A) and actuating between the extension (44A); Can form the coil (74) of electromagnetic field when coil is introduced electric current in magazine (64), wherein magazine (64) is installed to input shaft (24) by second free-wheel clutch (72); When applying the clamping load of ball oblique mechanism (40) generation, by rubbing and being connected the clutch component (52) of input shaft (24) rotationally to output shaft (26), wherein when coil (74) is introduced electric current, the electromagnetic field that produces pickup coil framework (64) rotationally arrives control extension (42A), coupling control extension (42A) is to intermediate plate (58), and coupling intermediate plate (58) is to actuating extension (44A); With

Rotor (134) can not be rotationally coupled on the outer hub (35) of power-transfer clutch (23).

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