CN106555852A - Power-driven system and the vehicle with which - Google Patents

Abstract

The invention discloses a kind of power-driven system and vehicle.The power-driven system includes：Differential mechanism, differential mechanism include：First and second planet carriers, the first and second planetary gears, the first and second gear rings, first and second planetary gears are separately positioned on the first and second planet carriers, first and second planetary gears are engaged with the first and second gear rings respectively, and the second planetary gear is also engaged with the first row star-wheel；Variator, variator are connected with differential mechanism；Electromotor and the first motor generator, electromotor and the first motor generator are connected with variator respectively, and the power of generation can be exported to the power intake of differential mechanism by electromotor and/or the first motor generator by variator.The differential mechanism of the power-driven system of the present invention realizes differential function using planet differential principle, compact conformation, simple.

Description

Power-driven system and the vehicle with which

Technical field

The present invention relates to a kind of power-driven system for vehicle, the vehicle with the power-driven system.

Background technology

In a kind of differential art known for inventor, differential mechanism includes that the driven gear of main reducing gear is (main Subtract driven gear), planetary gear, centre wheel etc., planetary gear is arranged on driven tooth by square shaft, axle sleeve On the subplate of wheel, and engage with centre wheel, realize which rotates and locomotive function with secondary and plane moving sets are rotated, Centre wheel passes through angular alignment pin and cylindrical pair or spline is connected with left and right two-semiaxle, reaches the mesh of output torque 's.This differential mechanism eliminates the components such as original differential mechanism or so housing, planetary gear shaft, uses square shaft instead Directly planetary gear is arranged on the subplate of driven gear of main reducing gear with axle sleeve, effectively reduces differential The number of parts of device, simplifies structure, alleviates weight.

But, this differential mechanism make use of symmetrical expression bevel gear structure to realize differential between wheel, just for tradition Symmetrical expression bevel differential part innovation, can not really solve this differential design axial dimension Excessive, housing and bevel gear quality be big and the shortcoming of reliability relative deviation.

The content of the invention

It is contemplated that at least solving one of above-mentioned technical problem of the prior art to a certain extent.

For this purpose, the present invention proposes a kind of power-driven system, the differential mechanism of the power-driven system is using row Star differential principle realizes differential function, compact conformation, simple.

The invention allows for another kind of power-driven system, the differential mechanism of the power-driven system utilizes planet Differential principle realizes differential function, compact conformation, simple.

The invention allows for another power-driven system, the differential mechanism of the power-driven system utilizes planet Differential principle realizes differential function, compact conformation, simple.

The invention allows for a kind of vehicle with the power drive system.

Power-driven system according to embodiments of the present invention, including：Differential mechanism, the differential mechanism include：The One planet carrier, the first row star-wheel and the first gear ring, the first row star-wheel are arranged in the first row carrier, The first row star-wheel is engaged with first gear ring；Second planet carrier, the second planetary gear and the second gear ring, Second planetary gear is arranged on second planet carrier, and second planetary gear is nibbled with second gear ring Close and second planetary gear is also engaged with the first row star-wheel；Wherein, first gear ring and described Two gear rings constitute two clutch ends of the differential mechanism, the first row carrier and second planet carrier Constitute the power intake of the differential mechanism；Variator, the variator are connected with the differential mechanism；Start Machine and the first motor generator, the electromotor and first motor generator respectively with the variator phase Connect, and the power for producing can be passed through the variator by the electromotor and/or first motor generator Export to the power intake of the differential mechanism.

The differential mechanism of power-driven system according to embodiments of the present invention realizes differential using planet differential principle Function is compact conformation, simple.

In addition, power-driven system according to embodiments of the present invention can also have following additional technical feature：

Some embodiments of the invention, the variator include power output shaft and multiple input shafts；

One of input shaft in the plurality of input shaft be arranged to optionally with the power output Axle links, and the power output shaft is arranged to the power intake linkage with the differential mechanism；

Wherein, first motor generator is linked with one of input shaft.

Some embodiments of the invention, the power output shaft overhead set are provided with empty set driven gear, The empty set driven gear is linked with one of input shaft, and the power-driven system also includes synchronous Device, the lock unit are arranged for the synchronous power output shaft and the empty set driven gear.

Some embodiments of the invention, power output shaft overhead set be provided with empty set driven gear with And fixed driven gear is fixedly installed, the power-driven system also includes lock unit：The lock unit sets It is set to for the synchronous power output shaft and the empty set driven gear；

It is fixedly installed fixed driving gear on each described input shaft, the empty set driven gear and described solid Determine driven gear to engage with corresponding fixed driving gear respectively.

Some embodiments of the invention, are fixedly installed multiple fixed driving tooths on each described input shaft Wheel, power output shaft overhead set are provided with multiple empty set driven gears, the empty set driven gear with it is right The fixed driving gear engagement answered, each described empty set driven gear can pass through the same of corresponding gear lock unit Walk and be bonded to the power output shaft.

Some embodiments of the invention, are fixedly installed input shaft on one of input shaft and fix Motor gear, the power output shaft overhead set are provided with power output shaft empty set motor gear, the power Output shaft empty set motor gear and the input shaft are fixed motor gear and engages, first motor generator and The input shaft fixes motor gear linkage, and the power-driven system also includes lock unit, the lock unit It is arranged for the synchronous power output shaft and the power output shaft empty set motor gear.

Some embodiments of the invention, the variator include power output shaft and multiple input shafts；

Each described input shaft be arranged to and the power output shaft linkage, the power output shaft be arranged to The power intake linkage of the differential mechanism；

Wherein described first motor generator is arranged to and the one of input shaft in the plurality of input shaft Linkage.

Some embodiments of the invention, are fixedly installed multiple fixed driven tooths on the power output shaft Wheel, is fixedly installed fixed driving gear on each described input shaft, the fixed driven gear with it is corresponding The fixed driving gear engagement.

Some embodiments of the invention, the variator include the first input shaft and the second input shaft, institute State the second input shaft to be set on first input shaft, it is the electromotor and first input shaft, described It is connected by double clutch between second input shaft.

Some embodiments of the invention, the power output shaft and the first row carrier, described second Planet carrier is coaxially fixed.

Some embodiments of the invention, power-driven system also include：First output section and the second output Portion, first output section are linked with first gear ring, and second output section is joined with second gear ring It is dynamic.

Some embodiments of the invention, first output section are left half axle gear, second output Portion is right axle shaft gear；And

The first external tooth is provided with first gear ring, the second external tooth on second gear ring, is provided with, it is described First external tooth is engaged with the left half axle gear, and second external tooth is engaged with the right axle shaft gear.

Some embodiments of the invention, the variator include：

Multiple input shafts and multiple power output shafts, first motor generator and the plurality of power output One of power output shaft linkage in axle, each described power output shaft is arranged to can be by from described The power intake of the power output of motivation and/or the first motor generator to the differential mechanism.

Some embodiments of the invention, the variator also include：Motor power axle, described first is electric Dynamic electromotor is coaxially connected with the motor power axle, the motor power axle be arranged to it is described one of them Power output shaft links.

Some embodiments of the invention, the variator also include：First motor gear and the second motor Gear, first motor gear are fixedly installed on the motor power axle, and second motor gear is solid Surely it is arranged on one of power output shaft, first motor gear and second motor gear Engagement.

Some embodiments of the invention, the variator also include：

Reverse output gear and reverse idler gear, the reverse output gear are described dynamic with the differential mechanism Power input links, and the reverse idler gear is engaged with the reverse output gear, the center tooth of reversing gear Bye is enclosed within one of power output shaft and can be engaged by the synchronization of reverse gear synchronizer To one of power output shaft.

Some embodiments of the invention, it is defeated that one of power output shaft overhead set is provided with power Shaft empty set output gear, the power output shaft empty set output gear share institute with the reverse idler gear Reverse gear synchronizer is stated, power output shaft is fixedly installed on remaining each power output shaft and is fixed output gear Wheel, the power output shaft fix output gear and the power output shaft empty set output gear respectively with it is described The power intake linkage of differential mechanism.

Some embodiments of the invention, power-driven system also include：

Jackshaft, the jackshaft are coaxially fixed with the first row carrier and second planet carrier, described Countershaft-gear is fixedly installed on jackshaft, the countershaft-gear is fixed with the power output shaft respectively The engagement of output gear, the power output shaft empty set output gear and the reverse output gear.

Some embodiments of the invention, the first row star-wheel and second planetary gear portion in the axial direction Divide and overlap.

Some embodiments of the invention, the first row star-wheel include：First teeth portion and the second teeth portion, Second planetary gear includes：3rd teeth portion and the 4th teeth portion, first teeth portion are nibbled with first gear ring Close, second teeth portion and the 3rd teeth portion corresponding overlap and engage cooperation on the axial direction, described the Four teeth portion are engaged with second gear ring.

Some embodiments of the invention, the first row star-wheel and the second planetary gear are roller gear.

Some embodiments of the invention, each in first gear ring and second gear ring are wrapped Include：

Body panels portion and be arranged on the body panels portion periphery edge annular side wall portion, the annular side Multiple teeth are provided with the internal face of wall portion, are limited between the body panels portion and the annular side wall portion The cavity of cavity, the cavity of first gear ring and second gear ring toward each other to constitute installing space, The first row carrier and the first row star-wheel and second planet carrier and second planetary gear receipts It is contained in the installing space.

Some embodiments of the invention, first gear ring and second gear ring are provided with the axial direction Gap.

Some embodiments of the invention, each described the first row star-wheel are configured with a first row star-wheel Axle, two ends of the first planet wheel shaft respectively with the first row carrier and the second planet carrier phase Even, each described second planetary gear is configured with second planet wheel spindle, two of second planet wheel spindle End is connected with the first row carrier and second planet carrier respectively.

Some embodiments of the invention, the revolution axis of the first row star-wheel and second planetary gear Revolution dead in line, the revolution-radius phase of the revolution-radius of the first row star-wheel and second planetary gear Together.

Some embodiments of the invention, power-driven system also include：First output section and the second output Portion, first output section are linked with first gear ring, and second output section is joined with second gear ring It is dynamic；Second motor generator and the 3rd motor generator, second motor generator and the described first output Portion links, and the 3rd motor generator is linked with second output section.

Some embodiments of the invention, the variator include the first input shaft, the second input shaft and Three input shafts, the 3rd input shaft are set on second input shaft, and second input shaft is set in On first input shaft, the electromotor and first input shaft, second input shaft and described It is connected by three clutches between three input shafts.

Some embodiments of the invention, first gear ring and the near front wheel link, second gear ring with Off-front wheel links；

The power-driven system also includes：

4th motor generator and the 5th motor generator, the 4th motor generator are linked with left rear wheel, 5th motor generator is linked with off hind wheel；And

Anti-skidding lock unit, after the anti-skidding lock unit is arranged to the optionally synchronous left rear wheel and the right side Wheel, so that the left rear wheel and the off hind wheel synchronous rotary.

Power-driven system according to another embodiment of the present invention, including：Differential mechanism, the differential mechanism include： The first row carrier, the first row star-wheel and the first gear ring, the first row star-wheel are arranged on the first row carrier On, the first row star-wheel is engaged with first gear ring；Second planet carrier, the second planetary gear and the second tooth Circle, second planetary gear is arranged on second planet carrier, second planetary gear and second tooth Circle is engaged and second planetary gear is also engaged with the first row star-wheel；Wherein, first gear ring and institute State two clutch ends that the second gear ring constitutes the differential mechanism, the first row carrier and second row Carrier constitutes the power intake of the differential mechanism；Variator, the variator include：First input shaft and Second input shaft, second input shaft are set on first input shaft, solid on first input shaft Surely it is provided with the first fixation driving gear, second input shaft and is fixedly installed the second fixation driving tooth Wheel；Power output shaft, is fixedly installed fixed driven gear and empty set arranges free on the power output shaft Set driven gear, the empty set driven gear are engaged with the described first fixation driving gear, and the fixation is driven Gear is engaged with the described second fixation driving gear, the power output shaft and the first row carrier and described Second planet carrier is coaxially connected；Lock unit, the lock unit are arranged on the power output shaft and for engaging The empty set driven gear；Electromotor, the electromotor and first input shaft and second input shaft Between be provided with double clutch；First motor generator, first motor generator are fixed with described first Driving gear links；First output section and the second output section, first output section are joined with first gear ring Dynamic, second output section is linked with second gear ring；Second motor generator and the 3rd motor generator, Second motor generator is linked with first output section, the 3rd motor generator and described second Link output section.

Power-driven system according to yet another embodiment of the invention, including：Differential mechanism, the differential mechanism include： The first row carrier, the first row star-wheel and the first gear ring, the first row star-wheel are connected with the first row carrier, The first row star-wheel is engaged with first gear ring；Second planet carrier, the second planetary gear and the second gear ring, Second planetary gear is connected with second planet carrier, and second planetary gear is engaged with second gear ring And second planetary gear is also engaged with the first row star-wheel, wherein, first gear ring and described second Gear ring constitutes two clutch ends of the differential mechanism, and first gear ring is linked with the near front wheel, institute State the second gear ring to link with off-front wheel；Variator, the variator include：First input shaft and second defeated Enter axle, second input shaft is set on first input shaft, is fixedly installed on first input shaft Have on the first fixation driving gear, second input shaft and be fixedly installed the second fixation driving gear；Power Output shaft, is fixedly installed fixed driven gear and empty set is provided with empty set driven tooth on the power output shaft Wheel, the empty set driven gear are engaged with the described first fixation driving gear, the fixed driven gear and institute State the engagement of the second fixation driving gear, the power output shaft and the first row carrier and second planet Frame is coaxially connected；Lock unit, the lock unit are arranged on the power output shaft and for engaging the empty set Driven gear；Electromotor, is arranged between the electromotor and first input shaft and second input shaft There is double clutch；First motor generator, first motor generator fix driving gear with described first Linkage；First output section and the second output section, first output section are linked with first gear ring, described Link with second gear ring the second output section；Second motor generator and the 3rd motor generator, described Two motor generator are linked with first output section, the 3rd motor generator and second output section Linkage；4th motor generator and the 5th motor generator, the 4th motor generator are linked with left rear wheel, 5th motor generator is linked with off hind wheel；And anti-skidding lock unit, the anti-skidding lock unit is arranged to The optionally synchronous left rear wheel and off hind wheel, so that the left rear wheel and the off hind wheel synchronization Rotation.

Vehicle according to embodiments of the present invention, including the power-driven system of above-described embodiment.

Description of the drawings

Fig. 1 is the explosive view of differential mechanism according to embodiments of the present invention；

Fig. 2 is the explosive view at another visual angle of differential mechanism according to embodiments of the present invention；

Fig. 3 is the axonometric chart of differential mechanism according to embodiments of the present invention；

Fig. 4 is the plan view sketch of differential mechanism according to embodiments of the present invention；

Fig. 5 is the axonometric chart of differential mechanism according to embodiments of the present invention, the second planet carrier and not shown in which Two gear rings etc.；

Fig. 6 is the mesh schematic representation of the first row star-wheel and the second planetary gear；

Fig. 7 is the theory of engagement sketch of the first row star-wheel and the second planetary gear；

Fig. 8 is the axonometric chart of the first gear ring according to embodiments of the present invention or the second gear ring；

Fig. 9 is the axonometric chart of the first gear ring in accordance with another embodiment of the present invention or the second gear ring；

Figure 10 is the schematic diagram of power-driven system according to an embodiment of the invention；

Figure 11 is the schematic diagram of power-driven system in accordance with another embodiment of the present invention；

Figure 12 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 13 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 14 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 15 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 16 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 17 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 18 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 19 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 20 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 21 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 22 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 23 is the schematic diagram of the power-driven system according to further embodiment of the present invention；

Figure 24 is the schematic diagram of vehicle according to embodiments of the present invention.

Specific embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein certainly Begin to same or similar label eventually to represent same or similar element or the unit with same or like function Part.It is exemplary below with reference to the embodiment of Description of Drawings, it is intended to for explaining the present invention, and not It is understood that as limitation of the present invention.

In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length Degree ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", The orientation or position of the instruction such as " level ", " top ", " bottom " " interior ", " outward ", " clockwise ", " counterclockwise " The relation of putting is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplification is retouched State, rather than indicate or imply that the device or element of indication must be with specific orientation, with specific orientation Construction and operation, therefore be not considered as limiting the invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying Relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", The feature of " second " can be expressed or implicitly include one or more this feature.The present invention's In description, " multiple " are meant that at least two, such as two, three etc., unless otherwise clearly concrete Restriction.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", Terms such as " fixations " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, Or it is integral；Can be mechanically connected, or electrically connect or can communicate with one another；It can be direct phase Even, it is also possible to be indirectly connected to by intermediary, can be two element internals connection or two elements Interaction relationship.For the ordinary skill in the art, can understand above-mentioned as the case may be Term concrete meaning in the present invention.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " Or D score can include the first and second feature directly contacts, it is also possible to it is special including first and second Levying is not directly contact but by the other characterisation contact between them.And, fisrt feature exists Second feature " on ", " top " and " above " including fisrt feature directly over second feature And oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature is second Feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and tiltedly Lower section, or fisrt feature level height is merely representative of less than second feature.

Describe power-driven system 1000 according to embodiments of the present invention below with reference to accompanying drawings in detail, should Power-driven system 1000 is can be applicable in vehicle.

As shown in Figure 10-Figure 19, power-driven system 1000 according to some embodiments of the invention is main Including differential mechanism 100, variator 104, electromotor 301 and the first motor generator 401, variator 104 are connected with differential mechanism 100, electromotor 301 and the first motor generator 401 respectively with variator 104 are connected, and in other words, it is electronic that variator 104 is arranged on differential mechanism 100, electromotor 301 and first Between electromotor 401, variator 104 is arranged to will be electronic from electromotor 301 and/or first The power of electromotor 401 is exported to the power intake of differential mechanism 100 (i.e. after chronotropic action One planet carrier 11 and the second planet carrier are 21), that is to say, that electromotor 301 and/or first electronic The power of generation can be input into by motor 401 by the power exported after variator 104 to differential mechanism 100 End.

The concrete structure of differential mechanism 100 is described in detail according to diagram embodiment first below, it is right To describe after differential mechanism 100 being discussed in detail and constructs in other constructions of power-driven system 1000.

Differential mechanism 100 according to embodiments of the present invention is described in detail with reference to Fig. 1-Fig. 9, The differential mechanism 100 can be used for differential or shaft space difference speed between wheel, as a example by differential between wheel, the difference Fast device 100 can be such that driving wheels travel in turn inside diameter or when uneven road surface is travelled with difference Angular velocity roll, to ensure two side drive wheel and ground catch cropping PURE ROLLING.

As shown in figure 1, differential mechanism 100 according to some embodiments of the invention can include the first row carrier 11st, the first row star-wheel 12 and the first gear ring 13 and the second planet carrier 21, the second planetary gear 22 and second Gear ring 23.

With reference to the embodiment of Fig. 1 and Fig. 5, the first row carrier 11 and the second planet carrier 21 it is so structured that Circular platy structure, so can reduce the axial dimension of differential mechanism 100 to a certain extent.At some In embodiment, the first row carrier 11 and the second planet carrier 21 can be split-type structural, due to independent widget Molding is relatively easy, therefore the first row carrier 11 and the second planet carrier 21 are individually processed and can be simplified Manufacturing process, raising machining accuracy.

Such as Fig. 1, Fig. 3, Fig. 5 and with reference to shown in Fig. 6-Fig. 7, the first row star-wheel 12 is arranged on the first row In carrier 11, for example, each the first row star-wheel 12 is configured with a first planet wheel shaft 14, the first row Two ends of spider gear shaft 14 are rotatably supported in the first row carrier 11 and the second planet carrier 21 respectively, Two ends such as first planet wheel shaft 14 can be rotatably supported in the first row carrier 11 by bearing In the axis hole corresponded to each other on the second planet carrier 21, now the first row star-wheel 12 is securable to corresponding On one planet wheel spindle 14.Certainly, two ends of first planet wheel shaft 14 and the first row carrier 11 and the Two planet carriers 12 can also be fixedly connected, and for example the two of first planet wheel shaft 14 end is respectively with The axis hole corresponded to each other on one planet carrier 11 and the second planet carrier 12 is welded and fixed, now the first row star-wheel 12 are rotatably sleeved on corresponding first planet wheel shaft 14, and for example the first row star-wheel 12 can pass through axle Hold and be rotatably mounted around on first planet wheel shaft 14.Thus, can be real by first planet wheel shaft 14 Now connect the purpose of the first row carrier 11 and the second planet carrier 21, so that the first row carrier 11 and the Two planet carriers 21 keep synchronized, in the same direction motion (i.e. the first row carrier 11 and the second planet carrier 21 link). And this connected mode is adopted, the first row carrier 11 and the second planet carrier 21 can well to the first row Spider gear shaft 14 carries out supporting/fixing, and prevents first planet wheel shaft 14 to be disconnected with single planet carrier and lead Differential mechanism 100 is caused to fail.

Shown in Figure 3, the first row star-wheel 12 is engaged with the first gear ring 13, concretely internal messing form, I.e. the first row star-wheel 12 is located at the inner side of the first gear ring 13 and is engaged with the tooth on the first gear ring 13.First Planetary gear 12 is preferably several, and circumferentially equidistantly distributed, on the inside of the first gear ring 13, for example, is made For one kind preferred embodiment, the first row star-wheel 12 can be three, and two first of arbitrary neighborhood Between planetary gear 12, interval angles are 120 °.

Similarly, such as Fig. 1, Fig. 3, Fig. 5 and with reference to shown in Fig. 6-Fig. 7, the second planetary gear 22 is arranged On the second planet carrier 21, for example, each second planetary gear 22 is configured with second planet wheel spindle 24, Two ends such as the second planet wheel spindle 24 can be rotatably supported in the first row carrier 11 by bearing In the axis hole corresponded to each other on the second planet carrier 21, now the second planetary gear 22 is securable to corresponding On two planet wheel spindles 24.Certainly, two ends of the second planet wheel spindle 24 and the first row carrier 11 and the Two planet carriers 12 can also be fixedly connected, and two ends of such as the second planet wheel spindle 24 are respectively with The axis hole corresponded to each other on one planet carrier 11 and the second planet carrier 12 is welded and fixed, now the second planetary gear 22 are rotatably sleeved on corresponding second planet wheel spindle 24, and such as the second planetary gear 22 can pass through axle Hold and be rotatably mounted around on the second planet wheel spindle 24.Thus, can be real by the second planet wheel spindle 24 Now connect the purpose of the first row carrier 11 and the second planet carrier 21, so that the first row carrier 11 and the Two planet carriers 21 keep synchronized, in the same direction motion.And adopt this connected mode, the first row carrier 11 Well the second planet wheel spindle 24 can be carried out supporting/fixing with the second planet carrier 21, prevent the second row Spider gear shaft 24 is disconnected with single planet carrier and causes differential mechanism 100 to fail.

Additionally, in other embodiments of the present invention, in order to keep the first row carrier 11 and the second planet Frame 21 can be moved at the same speed, in the same direction, it is also possible to by intermediate member by the first row carrier 11 and the second planet Frame 21 is directly fixedly connected, that is to say, that the first row carrier 11 and the second planet carrier in above example 21 synchronized, in the same direction motion can be realizing by first planet wheel shaft 14 and the second planet wheel spindle 24 , and the embodiment directly can realize the first row carrier 11 and the second planet carrier by arranging intermediate member 21 synchronized, in the same direction motion, such as intermediate member may be located at the first row carrier 11 and the second planet carrier It is welded and fixed between 21 and respectively with the first row carrier 11 and the second planet carrier 21.

Shown in Figure 3, the second planetary gear 22 is engaged with the second gear ring 23, concretely internal messing form, I.e. the second planetary gear 22 is located at the inner side of the second gear ring 23 and is engaged with the tooth on the second gear ring 23.Second Planetary gear 22 is preferably several, and circumferentially equidistantly distributed, on the inside of the second gear ring 23, for example, is made For one kind preferred embodiment, the second planetary gear 22 can be three, and two second of arbitrary neighborhood Between planetary gear 22, interval angles are 120 °.

, wherein it is desired to explanation, Fig. 3 is the plan view of the differential mechanism 100 according to the embodiment of the present invention Sketch, which schematically illustrates meshing relation between the first row star-wheel 12 and the second planetary gear 22 with And the meshing relation of the first row star-wheel 12 and the first gear ring 13, the second planetary gear 22 and the second gear ring 23, As Fig. 3 is plane graph, and also show above-mentioned three kinds of meshing relations, therefore the relative position of each part The relation of putting is only illustrative, and is not offered as or implies the practical spatial arrangement position of each part.

It is in multiple embodiments in the first row star-wheel 12 and the second planetary gear 22, it is preferable that Duo Ge One planetary gear 12 and multiple second planetary gears 22 are respectively correspondingly engaged.For example, as shown in Figure 1 and Figure 4, The first row star-wheel 12 and the second planetary gear 22 are three, then first the first row star-wheel 12 can with it is corresponding First the second planetary gear 22 engage, second the first row star-wheel 12 can be with corresponding second the second row Star-wheel 22 is engaged, and the 3rd the first row star-wheel 12 can be engaged with corresponding 3rd the second planetary gear 22, So there is multigroup the first row star-wheel 12 being engaged with each other and the second planetary gear 22, transmit in differential mechanism 100 During power, power is transmitted between the first row star-wheel 12 and the second planetary gear 22 of multigroup engagement that corresponds to each other More will stablize, it is reliable.

Additionally, another multiple embodiments are in the first row star-wheel 12 and the second planetary gear 22, it is multiple 22 circumferentially alternating arrangement of the first row star-wheel 12 and multiple second planetary gears, and the first row of arbitrary neighborhood Star-wheel 12 and the second planetary gear 22 are engaged.That is, in this embodiment, multiple the first row star-wheels 12 and multiple second planetary gears 22 it is circumferentially alternating arrangement and form annular, each the first row star-wheel 12 two the second planetary gears 22 being all adjacent are engaged, similarly, each second planetary gear 22 Two the first row star-wheels 12 being adjacent are engaged.

Wherein, with reference to the embodiment of Fig. 3, the revolution axes O of the first row star-wheel 12 and the second planetary gear 22 Revolution axes O overlap, and revolution-radius (the i.e. planet of the first row star-wheel 12 and the second planetary gear 22 The distance of the central axis distance revolution axes O of wheel) it is identical.

Especially, as shown in Fig. 1-Fig. 2, Fig. 4-Fig. 7, the first row star-wheel 12 and the second planetary gear 22 Engagement coordinates.In other words, for the first row star-wheel 12, which is not only engaged with the first gear ring 13, together When also engage with the second planetary gear 22, for the second planetary gear 22, its not only with the second gear ring 23 Engagement, while also engaging with the first row star-wheel 12.

As shown in figure 3, the first gear ring 13 and the second gear ring 23 may be constructed two power of differential mechanism 100 Outfan, the first row carrier 11 and the second planet carrier 21 then correspond to the power intake for constituting differential mechanism 100 (for example, now the first row carrier 11 and the second planet carrier 21 can be rigidly connected), it is so outer The power of portion's power source output can be input into from the first row carrier 11 and the second planet carrier 21, through differential mechanism Can export from the first gear ring 13 and the second gear ring 23 respectively after 100 differential action.Now, as optional Embodiment, the first row carrier 11 and the second planet carrier 21 can connect the power such as electromotor, motor Source, the first gear ring 13 and the second gear ring 23 can be connected with corresponding semiaxis by gear transmission structure, semiaxis It is connected with corresponding wheel again, but not limited to this.

Differential between wheel is applied to the differential mechanism 100 below, the first gear ring 13 and the composition of the second gear ring 23 are poor The clutch end of fast device 100, the first row carrier 11 and the second planet carrier 21 constitute the dynamic of differential mechanism 100 The operation principle of differential mechanism 100 is briefly described as a example by power input, wherein now the first gear ring 13 can pass through External tooth is connected with left half axle, and left half axle can be connected with left side wheel, and the second gear ring 23 can be by external tooth and the right side Semiaxis is connected, and right axle shaft can be connected with right side wheels, the power of power source such as electromotor and/or motor output Can be exported after the decelerating effect of main reducing gear to the first row carrier 11 and the second planet carrier 21.If now Vehicle is travelled on smooth road surface and without turning, and rotating speed is identical in theory with right side wheels for left side wheel, this When differential mechanism 100 do not play differential action, 21 synchronized, rotating in same direction of the first row carrier 11 and the second planet carrier, First gear ring 13 and the second gear ring 23 synchronized, rotating in same direction, the first row star-wheel 12 and the second planetary gear 22 Only revolution, not rotation.If now vehicle traveling is travelled on irregular road surface or turn inside diameter, left side car Rotating speed is different in theory with right side wheels for wheel, and the rotating speed of the first gear ring 13 and the second gear ring 23 is also different, i.e., There is speed discrepancy, now also rotation while revolution of the first row star-wheel 12 and the second planetary gear 22, first One caused from the change of team in the first gear ring 13 and the second gear ring 23 of planetary gear 12 and the second planetary gear 22 Speedup, another deceleration, the gear ring of speedup are the speed discrepancy of left and right wheelses with the speed discrepancy of the gear ring of deceleration, So as to realize differential action.

To sum up, differential mechanism 100 according to embodiments of the present invention utilizes planet differential principle, in structure and connection Space availability ratio is higher in form, and axial dimension is less, and more advantageous in production and fit on.This The version of sample can not only avoid the dimensional defects that angular wheel is axially and radially gone up, and additionally may be used To better profit from the space that master subtracts driven gear inner hollow, preferably space availability ratio is realized, greatly The arrangement of 100 assembly of differential mechanism and the restriction to weight size are facilitated, while also possessing higher Reliability and more preferably transmission efficiency, be conducive to improving the reliability of power chain and it is excessively curved when power Output fluency, this has more practicality for symmetrical expression bevel differential.

Below the meshing relation of first planet wheel 12 and the second planetary gear 22 is carried out in conjunction with specific embodiments in detail It is thin to describe.

With reference to shown in Fig. 3, Fig. 5-Fig. 7, the first row star-wheel 12 and the second planetary gear 22 are in axial direction (Fig. 7 Middle left and right directions) on partly overlap, that is to say, that the first row star-wheel 12 and the second planetary gear 22 only portion Divide and overlap, part in addition is staggered, the part that the first row star-wheel 12 and the second planetary gear 22 are overlapped can be each other Engagement, and the part staggered then can be engaged with respective gear ring.

Specifically, with reference to shown in Fig. 6 and Fig. 7, the first row star-wheel 12 can include 151 He of the first teeth portion Second teeth portion 152 (K2 dotted lines are as demarcation line with Fig. 7), the second planetary gear 22 can include the 3rd tooth Portion 153 and the 4th teeth portion 154 (K1 dotted lines are as demarcation line with Fig. 7), the second teeth portion 152 and the 3rd tooth Portion 153 constitutes lap, i.e. the second teeth portion 152 with the 3rd teeth portion 153 overlap corresponding in the axial direction and nibbles Close and coordinate, the first teeth portion 151 and the 4th teeth portion 154 are staggered in the axial direction and engaged with each self-corresponding gear ring, I.e. the first teeth portion 151 is engaged with the first gear ring 13, and the 4th teeth portion 154 is engaged with the second gear ring 23.

As a result, the axial dimension of differential mechanism 100 is compacter, the volume of differential mechanism 100 is more compact, Installation, arrangement beneficial to differential mechanism 100.

Below the power intake and clutch end of differential mechanism 100 are carried out in conjunction with specific embodiments in detail Description.

With reference to shown in Fig. 3, differential mechanism 100 also includes differential input shaft 31,32 and differential output shaft 41st, 42, differential input shaft 31,32 is connected with the first row carrier 11 and the second planet carrier 21 respectively, As in the example of fig. 3, the left side of the first row carrier 11 is connected with a differential input shaft 31, and second The right side of planet carrier 21 is connected with another 32 differential input shaft.Differential output shaft 41,42 is distinguished It is connected with the first gear ring 13 and the second gear ring 23, such as in the example of fig. 3, the left side of the first gear ring 13 A differential output shaft 41 is connected with, the right side of the second gear ring 23 is connected with another differential output shaft 42.Differential input shaft 31,32, the 41,42, first gear ring 13 of differential output shaft and the second gear ring 23 can be coaxially arranged.

Further, as shown in figure 3, differential input shaft includes：First differential input shaft 31 and second Differential input shaft 32, the first differential input shaft 31 are connected with the first row carrier 11, the second differential mechanism Input shaft 32 is connected with the second planet carrier 21, and differential output shaft can include：First differential output shaft 41 and second differential output shaft 42, the first differential output shaft 41 is connected with the first gear ring 13, and second Differential output shaft 42 is connected with the second gear ring 23, and the first differential input shaft 31 and the second differential mechanism are defeated It can be hollow shaft structure to enter axle 32 and the first differential output shaft 41 and the second differential output shaft 42, Wherein as preferred embodiment, it is defeated that the first differential output shaft 41 is coaxially set in the first differential mechanism Enter on axle 31, the second differential output shaft 42 is coaxially set on the second differential input shaft 32, by This 100 structure of differential mechanism is compacter, volume is less.

However, above-mentioned differential input shaft, differential output shaft are only a kind of optional embodiments.And In the embodiment of the power-driven system of Figure 10-Figure 23, differential mechanism 100 is external by the external tooth of gear ring Output power, and referring to Figure 10-Figure 12, Figure 13-Figure 23, the power output shaft 103 of variator 104 Then can be directly coaxial connected with the first row carrier 11 and the second planet carrier 21, and referring to Figure 13, variator 104 power output shaft 103a, 103b is by jackshaft 701 and the first row carrier 11 and the second planet carrier 21 linkages, jackshaft 701 are coaxial fixed with the first row carrier 11 and the second planet carrier 21.

Some embodiments of the invention, the number of teeth of the first gear ring 13 are equal with the number of teeth of the second gear ring 23, The number of teeth of the first row star-wheel 12 is equal with the number of teeth of the second planetary gear 22.

Some embodiments of the invention, the first row star-wheel 12 and the second planetary gear 22 are roller gear, Conventional symmetrical formula bevel differential is compared, 100 structure of differential mechanism using roller gear is compacter, had For body, in structure and type of attachment, space availability ratio is higher for which, and axial dimension is less, and in production It is more advantageous with fit on.

The structure of the first gear ring 13 and the second gear ring 23 is described in detail with reference to specific embodiment.

In some embodiments of the invention, the first gear ring 13 and the second gear ring 23 are symmetrical structure, change speech It, the first gear ring 13 and the second gear ring 23 are symmetrical arranged, and can so increase the versatility of gear ring, reduce Cost.

Specifically, such as Fig. 1 and with reference to shown in Fig. 3, each in the first gear ring 13 and the second gear ring 23 Include：Body panels portion 161 and be arranged on body panels portion 161 periphery edge annular side wall portion 162, Body panels portion 161 and annular side wall portion 162 can be integrally formed part.Annular side wall portion 162 it is interior Multiple gear teeth are provided with wall, between body panels portion 161 and annular side wall portion 162, cavity is limited A1, A2 (referring to Fig. 3), that is to say, that body panels portion 161 and the annular side wall portion of the first gear ring 13 Limit cavity A1 between 162, the body panels portion 161 and annular side wall portion 162 of the second gear ring 23 it Between limit cavity A2, the cavity A2 directions in cavity A1 and the second gear ring 23 in the first gear ring 13 Each other to constitute installing space A (referring to Fig. 3), wherein the first row carrier 11 and the first row star-wheel 12 and Second planet carrier 21 and the second planetary gear 22 are accommodated in installing space A, so that differential mechanism 100 Structure it is relatively more compact, take volume it is less, it is easier to arrange, while the first gear ring 13 and second Gear ring 23 serves as the function of external shell, can protect and be accommodated in planet carrier therein and planetary gear, improves Life-span.Additionally, the installing space A limited by the first gear ring 13 and the second gear ring 23 is comparatively closed, Outside debris are not easily accessible in installing space A and affect moving component, it is ensured that differential mechanism 100 is stablized Work.

With reference to shown in Fig. 2, the first gear ring 13 and the second gear ring 23 are provided with clearance D in the axial direction, also It is to say, the first gear ring 13 is spaced apart from each other in the axial direction with the second gear ring 23, is not brought into close contact.For For those skilled in the art, due to the first row star-wheel 12 and the width of the mate of the second planetary gear 22 Determine the width of the mate of the size of the clearance D, i.e. the first row star-wheel 12 and the second planetary gear 22 It is equal with the minima of the clearance D, therefore engaged by controlling the first row star-wheel 12 and the second planetary gear 22 Partial width, to those skilled in the art, can protected with the size of the indirect control clearance D Card the first row star-wheel 12 and the second planetary gear 22 being capable of stable delivery power and the first row star-wheels 12 and the On the premise of the service life of two planetary gears 22, can nibbling the first row star-wheel 12 and the second planetary gear 22 The relative narrower that the width of part is arranged is closed, the clearance D so can be effectively reduced so that differential mechanism 100 Axial dimension it is less, more compact, it is easy to arrange.

It should be noted that the clearance D of above-mentioned Fig. 3 (with reference to Fig. 1-Fig. 2) refers to the first gear ring 13 Annular side wall portion 162 and the second gear ring 23 the distance between annular side wall portion 162.For example, see figure 1st, the embodiment of Fig. 2 and Fig. 3, the first gear ring 13 and the second gear ring 23 all include body panels portion 161 With annular side wall portion 162.

And the present invention other embodiments in, such as referring to the embodiment of Fig. 8 and Fig. 9 in, the first gear ring 13 and second each in gear ring 23 still further comprise annular flange portion 163, annular flange portion 163 Extend from direction of the end of annular side wall portion 162 away from body panels portion 161, in the embodiment of Fig. 8 In, the internal diameter of annular flange portion 163 can be generally equalized with the external diameter of annular side wall portion 162, such convex annular Edge 163 is diametrically equivalent to outwardly annular side wall portion 162 (i.e. the first gear ring 13 or the second tooth The outer peripheral face of circle 23).And in the embodiment in fig. 9,163 external diameter of annular flange portion can be with annular side wall portion 162 external diameter is generally equalized, and the internal diameter of annular flange portion 163 can be more than the interior of annular side wall portion 162 Footpath, that is to say, that the thickness of annular flange portion 163 is more thinner than the thickness of annular side wall portion 162.

However, it is desirable to illustrate, in the gear ring structure of Fig. 1, Fig. 2 and Fig. 3 embodiment, two gear ring Between clearance D refer to the gap between the annular side wall portion 162 of two gear rings.And Fig. 8 and Fig. 9 is implemented Gear ring structure in example, the clearance D between two gear ring refer to the annular flange portion 163 of two gear rings Between gap.

Some embodiments of the invention, as the first gear ring 13 and/or the second gear ring 23 can also enter One step includes annular flange portion 163, when using this gear ring structure, due to depositing for annular flange portion 163 Comparing and can further reduce above-mentioned gap at least in part for there is no the gear ring of annular flange portion 163 D, and preferably, the clearance D can be reduced to zero, and such as the first gear ring 13 and the second gear ring 23 can be with The gear ring structure shown in Fig. 8 is adopted simultaneously, now the annular flange portion 163 and the second tooth of the first gear ring 13 The end face of the annular flange portion 163 of circle 23 can be fit together substantially, so that clearance D is zero, So installing space A is more closed, and outside debris are more difficult to enter in installing space A and affect moving component, Ensure that the steady operation of differential mechanism 100.However, it is to be understood that explanation here is only schematic , it is impossible to it is not understood as limiting one kind of the scope of the present invention, those skilled in the art are on having read After stating content, can further reduce clearance D or even by between setting annular flange portion 163 is understood by After gap D is decreased to zero technology design, can neatly select the type of gear ring to be combined, for example, ensure Wherein at least one gear ring has annular flange portion 163, so further can reduce clearance D and even will Clearance D is reduced into zero, so that installing space A is more closed.

Additionally, used as optional embodiment, the first gear ring 13 is identical with the radial dimension of the second gear ring 23, And first each in gear ring 13 and the second gear ring 23 may each be and be integrally formed part.

Differential mechanism 100 according to embodiments of the present invention has been discussed in detail above, below will be to power drive line Remaining structure of system 1000 is described in detail.

Shown in reference picture 10- Figure 23, variator 104 can include multiple input shafts 101,102 and move Power output shaft 103.In certain embodiments, as shown in Figure 10-Figure 12, Figure 14-Figure 23, speed change The power output shaft 103 of device 104 can be one, but not limited to this.For example, see the enforcement of Figure 13 Example, power output shaft can also be two, i.e. the first power output shaft 103a and the second power output shaft 103b。

As shown in Figure 10-Figure 23, power output shaft 103 is arranged to be input into the power of differential mechanism 100 End linkage, i.e., power output shaft 103 is arranged to link with the first row carrier 11 and the second planet carrier 21, Concrete linked manner is described in conjunction with specific embodiments below.

Referring to Figure 10-Figure 11, the embodiment of Figure 16-Figure 19, its in multiple input shafts 101,102 In an input shaft be arranged to optionally link with power output shaft 103, in other words, such as Figure 10, Shown in Figure 16-Figure 19, one of input shaft such as the first input shaft 101 is (defeated for second in Figure 11 Enter axle 102) to be linked with power output shaft 103, while one of input shaft such as One input shaft 101 also can be disconnected with power output shaft 103.For remaining input shaft, then it is respectively provided with Into linking with power output shaft 103, i.e., these input shaft actions then power output shaft 103 also with servo-actuated Make or 103 action of power output shaft then these input shafts also action therewith.And referring to the reality of Figure 10 Example is applied, each input shaft 101,102 is all provided with being set to and is optionally linked with power output shaft 103.

Referring to the embodiment of Figure 10, Figure 16-Figure 19, the first motor generator 401 be arranged to this its In input shaft such as first input shaft 101 link, i.e., what with the first motor generator 401 was linked Input shaft 101 is the input shaft 101 with the linkage of 103 selectivity of power output shaft.In a further embodiment, 103 overhead of power output shaft set is provided with empty set driven gear 108, empty set driven gear 108 with it is above-mentioned One of input shaft linkage, it is driven with empty set that lock unit 109 is arranged for synchronous dynamic output shaft 103 Gear 108.It is understood that when lock unit 109 is in engagement state, lock unit 109 is synchronous empty Set driven gear 108 and power output shaft 103, so the power from the first motor generator 401 can Export to differential mechanism 100, and in lock unit from power output shaft 103 under the conjugation of lock unit 109 109 when being off, and the first motor generator 401 is equivalent to disconnecting with power output shaft 103.By This, lock unit 109 serves as the power switch of the first motor generator 401, can control the first dynamoelectric and power generation The output of 401 power of machine and disconnection.

Used as a kind of optional embodiment, lock unit 109 is arranged on power output shaft 103 and for connecing Close empty set driven gear 108.Thus, simple structure, it is easy to accomplish.

Referring to shown in Figure 10-Figure 11, Figure 16-Figure 19, for remaining input shaft and power output shaft 103 The kind of drive, can be realized by gear transmission mode.For example, it is fixedly installed on power output shaft 103 There is fixed driven gear 107, fixed driven gear 107 is linked with remaining input shaft, that is, remove above-mentioned figure 10th, the input shaft 102 in the input shaft 101 or Figure 11 embodiments in Figure 16-Figure 19 embodiments.

For example, see the specific embodiment of Figure 10 and Figure 11, on power output shaft 103, fixation sets simultaneously Fixed driven gear 107 is equipped with, and is set with empty set driven gear 108, and it is accordingly solid on input shaft Surely fixed driving gear 105,106, empty set driven gear 108 and fixed driven gear 107 are provided with Engage with corresponding fixed driving gear respectively.Such as, empty set driven gear 108 and fixed driven gear 107 total sum is identical with the quantity of fixed driving gear.

Referring to the number of the example of Figure 10-Figure 11, empty set driven gear 108 and fixed driven gear 107 Amount is one, and accordingly, the quantity of fixed driving gear is two, empty set driven gear 108 with One fixed driving gear engagement constitutes a pair of gear pairs, and fixed driven gear 107 is fixed with another Driving gear engagement constitutes another to gear pair, it will be understood that the transmission speed ratio of two pairs of gear pairs is not Together, transmission gear of the variator 104 therefore in the embodiment with two not synchronized ratios, it is so dynamic The structure of power-driven system 1000 is relatively easy, compact, and also disclosure satisfy that normal vehicle operation pair The requirement of transmission speed ratio.

As shown in Figure 10-Figure 23, multiple input shafts include the first input shaft 101 and the second input shaft 102, First input shaft 101 can be solid shafting, and the second input shaft 102 can be hollow axle, and second is input into Axle 102 is set on the first input shaft 101, and such as the second input shaft 102 is coaxially enclosed within the first input On axle 101, the axial length of the first input shaft 101 is more than the axial length of the second input shaft 102, One end such as right-hand member of the first input shaft 101 can be internally extended from the second input shaft 102.

Further, as shown in Figure 10 and Figure 11, each input shaft can only be fixedly installed one admittedly Determine driving gear, that is to say, that fixed driving gear includes the first fixation driving gear 106 and second Fixed driving gear 105, the first fixation driving gear 106 are fixedly installed on the first input shaft 101, Second fixation driving gear 105 is fixedly installed on the second input shaft 102.

Shown in Figure 10, Figure 16-Figure 19, empty set driven gear 108 and first fixes driving gear 106 Engagement, fixed driven gear 107 are engaged with the second fixation driving gear 105, while first electronic Motor 401 is linked with the first input shaft 101, such as the first motor generator 401 by gear structure with First fixation driving gear 106 links, concretely the first motor generator 401 by gear 402, Gear 403 is driven with the first fixation driving gear 106, by the number of teeth of reasonable design said gear The transmission speed ratio needed for the first motor generator 401 can be obtained.

And in the example of fig. 11, empty set driven gear 108 is engaged with the second fixation driving gear 105, Fixed driven gear 107 is engaged with the first fixation driving gear 106, while the first motor generator 401 Link with the second input shaft 102, such as the first motor generator 401 passes through gear structure and second to be fixed Driving gear 105 links, concretely the first motor generator 401 by gear 402, gear 403, Gear 404, gear 405 are driven with the second fixation driving gear 105, its middle gear 404 and gear 405 can be fixed on same axle 406, can be obtained by the number of teeth of reasonable design said gear Transmission speed ratio needed for first motor generator 401.

Further, as shown in Figure 10-Figure 19, power-driven system 1000 can also include electromotor 301, electromotor 301 is arranged to optionally engage with least one of multiple input shafts, specifically Ground, input shaft is two, and is provided with double clutch 204 between electromotor 301 and two input shafts. Double clutch 204 includes：First bonding part 201, the second bonding part 202 and the 3rd bonding part 203, Wherein the first bonding part 201 and the second bonding part 202 can be two of double clutch 204 driven Disk, the 3rd bonding part 203 can be the housing of double clutch 204, at least one of two clutch plates It is selectively engageable housing, that is to say, that in the first bonding part 201 and the second bonding part 202 At least one can be selectively engaged the 3rd bonding part 203.Certainly, two clutch plates can also be with shell Body is all off, i.e. the first bonding part 201 and the second bonding part 202 with the 3rd bonding part 203 It is off.

Referring to Figure 10-Figure 19, electromotor 301 is connected with the 3rd bonding part 203, the first input shaft 101 It is connected with the first bonding part 201, the second input shaft 102 is connected with the second bonding part 202.So, The power that electromotor 301 is produced can be optionally exported to the first input shaft by double clutch 204 101st, the second input shaft 102.

In other embodiment, as shown in Figure 14-Figure 15, each input shaft is all provided with being set to and moves Power output shaft 103 links, and in other words, as shown in Figure 14-Figure 15, any one input shaft is rotated then Power output shaft 103 also follow action or power output shaft 103 rotate then these input shafts also with Action.

As shown in Figure 14-Figure 15, the first motor generator 401 is arranged to link with one of input shaft. As in the example in figure 14, the first motor generator 401 is linked with the first input shaft 101, concretely First motor generator 401 is driven by gear 402, gear 403 and the first fixation driving gear 106. And in the example of fig. 15, the first motor generator 401 is linked with the second input shaft 102, concretely First motor generator 401 passes through gear 402, gear 403, gear 404, gear 405 and second Fixed driving gear 105 is driven, and its middle gear 404 and gear 405 can be fixed on same axle 406 On.

In some embodiments, for input shaft 101,102 and the kind of drive of power output shaft 103, Can be driven using traditional shift gear pair.

For example, with reference to Figure 14-Figure 15, multiple fixed driven tooths on power output shaft 103, are fixedly installed Wheel 107a, 107b, are fixedly installed fixed driving gear and (for example, first fix master on each input shaft 105) moving gear 106 and second fixes driving gear, fixes driven gear and corresponding fixed driving gear Engagement.

Such as referring to the example of Figure 14-Figure 15, fixed driven gear 107a is engaged with fixed driving gear 105 A pair of shift gear pairs are constituted, it is another that fixed driven gear 107b engages composition with fixed driving gear 106 To gear pair.It is appreciated that the transmission speed ratio of two pairs of gear pairs is different, therefore in the embodiment Transmission gear of the variator 104 with two not synchronized ratios, the structure of such power-driven system 1000 It is relatively easy, compact, and also disclosure satisfy that requirement of the normal vehicle operation to transmission speed ratio.

Some embodiments (embodiment i.e. shown in Figure 14-Figure 15) are implemented with above-mentioned Figure 10-Figure 11 Example differ primarily in that：Lock unit 109 is eliminated, while empty set driven gear 108 is changed to directly Connect and be fixed on power output shaft 103, constitute fixed driven gear, remainder then with Figure 10-figure 11 embodiments are basically identical, therefore no longer repeat one by one here.

In the illustration in fig 12, i.e., in multiple input shafts, the embodiment of single power output shaft 103, Input shaft is fixedly installed on one of input shaft such as the first input shaft 101 and fixes motor gear 111a, 103 overhead of power output shaft set are provided with power output shaft empty set motor gear 111b, power Output shaft empty set motor gear 111b fixes motor gear 111a with input shaft and engages, and first electric Dynamic electromotor 401 fixes motor gear 111a linkages, such as the first motor generator 401 with input shaft Motor gear 111a transmissions are fixed by gear 402, gear 403 and input shaft.In the embodiment, Power-driven system 1000 equally includes lock unit 109, and lock unit 109 is arranged for synchronous dynamic Output shaft 103 and power output shaft empty set motor gear 111b, such as lock unit 109 are arranged on power On output shaft 103 and for engaging power output shaft empty set motor gear 111b.

That is, the embodiment of Figure 12 is compared with above-mentioned Figure 10 with the embodiment of Figure 11, a main area It is not：Figure 12 embodiment motor gears (the first motor generator 401) are by the tooth that is separately provided Wheel set (i.e. input shaft fixes motor gear 111a and power output shaft empty set motor gear 111b) is real The output of existing motor power, and in the embodiment of Figure 10 and Figure 11, motor gear is by corresponding Shift gear pair realizes the output of motor power.

Additionally, for Figure 12 embodiments are compared with above-mentioned Figure 10 with Figure 11 embodiments, also one master Distinguish.Specifically, in the embodiment of Figure 12, fixation on each input shaft sets Multiple fixed driving gears are equipped with, and in the embodiment of Figure 10 and Figure 11, it is only solid on each input shaft Surely it is provided with a fixed driving gear.Accordingly, in the fig. 12 embodiment, as each is input into Be fixedly installed multiple fixed driving gears on axle, thus 103 overhead of power output shaft set be provided with it is many Individual empty set driven gear, each empty set driven gear are engaged with corresponding fixed driving gear, and often Individual empty set driven gear can be bonded to power output shaft 103 by the synchronization of corresponding gear lock unit.

For example, with reference to the example of Figure 12, two gears are fixedly installed on the first input shaft 101 and are fixed actively The fixed driving gear 6a of the fixed gears of driving gear 4a and six of gear 2a, four gears, the second input shaft 102 On be fixedly installed a gear to fix driving gear 1a, the fixed driving gear 3a of three gears, five gears fixed actively The fixed driving gear 7a of the gears of gear 5a and seven, 103 empty set of power output shaft be provided with a gear empty set from Moving gear 1b, two gear empty set driven gear 2b, three gear empty set driven gear 3b, four gear empty sets are driven Gear 4b, five gear empty set driven gear 5b, six gear empty set driven gear 6b and seven gear empty set driven tooths Wheel 7b, wherein gear empty set driven gear 1b driving gear 1as fixed with a gear is engaged so as to constitute one Gear gear pair, two gear empty set driven gear 2b driving gear 2as fixed with two gears are engaged so as to constitute two Gear gear pair, three gear empty set driven gear 3b driving gear 3as fixed with three gears are engaged so as to constitute three Gear gear pair, four gear empty set driven gear 4b driving gear 4as fixed with four gears are engaged so as to constitute four Gear gear pair, five gear empty set driven gear 5b driving gear 5as fixed with five gears are engaged so as to constitute five Gear gear pair, six gear empty set driven gear 6b driving gear 6as fixed with six gears are engaged so as to constitute six Gear gear pair, seven gear empty set driven gear 7b driving gear 7as fixed with seven gears are engaged so as to constitute seven Gear gear pair.

Further, it is shown in Figure 12, be additionally provided with power output shaft 103 one or three gear lock unit 13c, Five or seven gear lock unit 57c, two gear lock unit 2c and four or six gear lock unit 46c, one or three gear lock unit 13c Keep off between empty set driven gear 3b and be selectively engageable positioned at a gear empty set driven gear 1b and three One gear empty set driven gear 1b or three gear empty set driven gear 3b, five or seven gear lock unit 57c are located at five Gear empty set driven gear 5b and seven keeps off between empty set driven gear 7b and is selectively engageable five gears sky The gear empty set driven gear 7b of set driven gear 5b or seven, two gear lock unit 2c are used for engagement two and keep off empty set Driven gear 2b, four or six gear lock unit 46c positioned at four gear empty set driven gear 4b and six gear empty sets from It is between moving gear 6b and driven for being selectively engaged the gear empty sets of six gear empty set driven gear 6b and four Gear 4b.

Thus, the variator 107 is configured with the forward gear of seven not synchronized ratios, preferably can meet The driving requirements of vehicle.

Variator 104 in other embodiments, the speed change in the embodiment are described referring to Figure 13 The main area of the variator 100 in device 104 and above-mentioned Figure 10-Figure 12, Figure 14-Figure 15 embodiments Not Wei power output shaft 103 quantity, in above-described embodiment power output shaft 103 be one, the reality In applying example, power output shaft 103 is multiple such as two, as the quantity of power output shaft 103 increases, Therefore other constructions are also unlike the embodiments above, describe in detail below in conjunction with accompanying drawing.

Shown in Figure 13, the variator 104 in the embodiment includes multiple input shafts 101,102 With multiple power output shafts, such as multiple power output shafts include the first power output shaft 103a and second Power output shaft 103b.One of them in first motor generator 401 and multiple power output shafts is moved Power output shaft such as 103b links, each power output shaft be arranged to can by from electromotor 301 and/or Power intake (the i.e. first planet of the power output of the first motor generator 401 to differential mechanism 100 Frame 11 and the second planet carrier are 21).

Further, as shown in figure 13, variator 104 also includes motor power axle 103c, and first is electronic Electromotor 401 is coaxially connected with motor power axle 103c, motor power axle 103c be arranged to it is described One of power output shaft linkage, such as motor power axle 103c and the second power output shaft 103b Linkage.

For motor power axle 103c and the linked manner of the second power output shaft 103b, referring to Figure 13 Shown, the first motor gear 103d is fixedly installed on motor power axle 103c, the second motor gear 103e is fixedly installed on one of power output shaft such as the second power output shaft 103b, the One motor gear 103d is engaged with the second motor gear 103e.In short, in the embodiment, second Power output shaft 103b is by gear-driven, i.e., by being engaged with each other with motor power axle 103d The first motor gear 103d and the second motor gear 103e realize power transmission.

For the variator 104 in the embodiment, its structure of reversing gear is shown in Figure 13, and reverse gear output gear The power intake linkage of wheel 601 and differential mechanism 100, reverse idler gear 604 and reverse output gear 601 engagements, 604 empty set of reverse idler gear is in one of power output shaft such as the second power output On axle 103b, reverse idler gear 604 can be bonded to this by the synchronization of reverse gear synchronizer 604c Power output shaft 103b.Specifically, reverse output gear 601 can be duplicate gear, and which has gear part 602nd, 603, gear part 602 is linked with the power intake of differential mechanism 100, gear part 603 with reverse gear Between gear 604 engage, the duplicate gear can empty set on motor power axle 103c, but not limited to this.

For the bang path that reverses gear, substantially it is divided into two kinds, one of which is driven for electromotor 301, for example, send out The power that motivation 301 will be produced by double clutch 204, the first input shaft 101 or the second input shaft 102 Export to the second power output shaft 103b, reverse gear synchronizer 604c engagement reverse idler gears 604, the portion Sub-power is again by exporting from reverse output gear 601 after reverse idler gear 604.It is another kind of electric for first Dynamic electromotor 401 drives, and the power for producing is passed through the first motor tooth by such as the first motor generator 401 Wheel 103d and the second motor gear 103e is exported to the second power output shaft 102b, reverse gear synchronizer 604c Engagement reverse idler gear 604, the partial power again by after reverse idler gear 604 from the output gear that reverses gear Wheel 601 is exported.Certainly, electromotor 301 and the first motor generator 401 can also export simultaneously reverse gear it is dynamic Power, now two parts reverse gear power couple on the second power output shaft 102b after by reverse idler gear Export from reverse output gear 601 after 604.

It is shown in Figure 13, as the power output shaft of variator 104 in the embodiment is for multiple, and often Individual power output shaft can externally export power, thus each power output shaft be provided with can be defeated by power Go out the export structure of the power intake to differential mechanism 100.Specifically, one of power output Axle such as the second power output shaft 103b overhead set is provided with power output shaft empty set output gear 605, remaining Each power output shaft fix output as power output shaft is fixedly installed on the first power output shaft 103a Gear 606, power output shaft empty set output gear 605 and power output shaft are fixed output gear 606 and are distinguished Link with the power intake of differential mechanism 100.

For example, in the specific example of Figure 13, it is fixedly installed on the first power output shaft 103a dynamic defeated Shaft fixes output gear 606, and the second power output shaft 103b overhead set is provided with power output shaft empty set Output gear 605, and variator 104 also includes jackshaft 701, jackshaft 701 and the first row carrier 11 It is coaxial fixed with the second planet carrier 21, so as to jackshaft 701, the first row carrier 11 and the second planet carrier 21 Can rotate in the same direction, at the same speed.Countershaft-gear 702, countershaft-gear are fixedly installed on jackshaft 701 702 are fixed output gear 606, power output shaft empty set output gear 605 respectively and are fallen with power output shaft Gear output gear 601 is engaged.

Wherein, power output shaft empty set output gear 605 is same dynamic due to being in reverse idler gear 604 On power output shaft 103b, therefore as one kind preferred embodiment, power output shaft empty set output gear 605 share reverse gear synchronizer 604c with reverse idler gear 604, such as shown in Figure 13, synchronization of reversing gear Device 604c to the left engageable power output shaft empty set output gear 605, move right engageable centre of reversing gear Gear 604.Thus, it is possible to save a lock unit, frame for movement is not only simplify, and be also simplify Control strategy, reduces cost.

Additionally, for the power-driven system 1000 in Figure 13 embodiments, its electromotor 301 by it is double from Clutch 204 is connected with the first input shaft 101 and the second input shaft 102, and this part is identical with remaining embodiment, Here repeat no more.

In the embodiment, referring to Figure 13, a gear is fixedly installed on the first input shaft 101 and fixes driving tooth It is fixed on the fixed driving gear 5a of the fixed gears of driving gear 3a and five of wheel 1a, three gears, the second input shaft 102 It is provided with two gears and fixes the gears of driving gear 2a and four or six fixed driving gear 46a, the first power output shaft 103a Overhead set is provided with two gear empty set driven gear 2b, four gear empty set driven gear 4b, three gear empty set driven tooths The gear empty set driven gear 1b of wheel 3b and, the second power output shaft 103b overhead set are provided with five gear empty sets The gear empty set driven gear 6b of driven gear 5b and six.

As shown in figure 13, wherein gear empty set driven gear 1b driving gear 1as fixed with a gear is engaged So as to constitute first gear pair, two gear empty set driven gear 2b driving gear 2as fixed with two gears is engaged So as to constitute second gear pair, three gear empty set driven gear 3b driving gear 3as fixed with three gears is engaged So as to constitute three gear gear pairs, four gear empty set driven gear 4b driving gear 46as fixed with four or six gears is nibbled Close so as to constitute four gear gear pairs, five gear empty set driven gear 5b driving gear 5as fixed with five gears is nibbled Close so as to constitute five gear gear pairs, six gear empty set driven gear 6b and the fixed driving gear 46a of four or six gears Engage so as to constitute six gear gear pairs.

Further, as shown in figure 13, two or four gear lock units are provided with the first power output shaft 103a The gear lock unit 13c of 24c and or three, are provided with five or six gear lock unit 56c on the second power output shaft 103b, One or three gear lock unit 13c be arranged on the gears of a gear empty set driven gear 1b and three empty set driven gear 3b it Between and keep off the gear empty set driven gear 3b of empty set driven gear 1b or three for engagement one, two or four gears are synchronous Device 24c is arranged between the gear empty set driven gear 4b of two gear empty set driven gear 2b and four and for connecing Close two and keep off the gear empty set driven gear 4b of empty set driven gear 2b or four, five or six gear lock unit 56c are arranged Empty set is kept off between five gear empty set driven gear 5b and six gear empty set driven gear 6b and for engagement five The gear empty set driven gear 6b of driven gear 5b or six.

Thus, the variator 107 is configured with the forward gear of six not synchronized ratios, preferably can meet The driving requirements of vehicle.

For the variator embodiment of single power output shaft 103, the power output shaft 103 can be direct It is fixedly and coaxially connected with two planet carriers.For example, with reference to Figure 10-Figure 12, the embodiment of Figure 14-Figure 19, Power output shaft 103 is coaxial fixed with the first row carrier 11 and the second planet carrier 21, so that variator 104 is compacter with the coupling part of differential mechanism 100, i.e., directly output power axle 103 and two planets Frame is coaxially fixed, so as to the volume that at least can reduce power-driven system 1000 to a certain extent.

Additionally, as shown in Figure 10-Figure 19, power-driven system 1000 also includes 601 He of the first output section Second output section 602, the first output section 601 are linked with the first gear ring 13, the second output section 602 and Two gear rings 23 link.Further, the first output section 601 is left half axle gear, the second output section 602 For right axle shaft gear, while the first external tooth 603 is provided with the first gear ring 13, arrange on the second gear ring 23 There is the second external tooth 604, the first external tooth 603 is engaged with left half axle gear 601, the second external tooth 604 and right half Shaft gear 602 is engaged, and thus the power of Jing differential mechanisms 100 finally can be by left half axle gear 603 and right half Shaft gear 604 is exported to the wheel of the left and right sides.

Wherein, as shown in Figure 20 and Figure 21, be arranged to can be with the first output section for the second motor generator 501 601 linkages, the 3rd motor generator 502 are arranged to link with the second output section 602, and such as second is electronic Gear 503 can be provided with the motor shaft of electromotor 501, gear 503 is engaged with left half axle gear 601, It is provided with gear 504, gear 504 and right axle shaft gear simultaneously on the motor shaft of the 3rd motor generator 502 602 engagements.

Referring to shown in Figure 20-Figure 21, the second motor generator 501 and the 3rd motor generator 502 with regard to 100 symmetrical distribution of differential mechanism, can so cause the center of gravity of power-driven system 100 in centre bit Put or closer to center.

Referring to the embodiment of Figure 22 Figure 23, the power-driven system 1000 and Figure 10-figure in the embodiment One of power-driven system 1000 in 21 embodiments differs primarily in that：The quantity of input shaft.This one In a little embodiments, input shaft includes the first input shaft 101, the second input shaft 102 and the 3rd input shaft 1003, 3rd input shaft 1003 can be hollow axle and be set on the second input shaft 102, the second input shaft 102 Can also be hollow axle and be set on the first input shaft 101, three input shafts can be coaxially arranged. Pass through between electromotor 301 and the first input shaft 101, the second input shaft 102 and the 3rd input shaft 1003 Three clutches 205 are connected, and specifically, three clutches 205 have the first clutch plate 206, second driven Disk 207, the 3rd clutch plate 208 and housing 209, housing 209 optionally with the first clutch plate 206, At least one of second clutch plate 207, the 3rd clutch plate 208 are engaged, the first input shaft 101 and first Clutch plate 206 connects, and the second input shaft 102 is connected with the second clutch plate 207, the 3rd input shaft 1003 It is connected with the 3rd clutch plate 208, electromotor 301 is connected with housing 209.In the embodiment of Figure 22, the One clutch plate 206, the second clutch plate 207, the 3rd clutch plate 208 are axially distributed, the embodiment of Figure 23 In, the first clutch plate 206, the second clutch plate 207, the 3rd clutch plate 208 are radially distributed.

The typical work of power-driven system 1000 according to embodiments of the present invention is briefly described with reference to Figure 10 Condition.

For example, the first bonding part 201 is engaged with the 3rd bonding part 203, the second bonding part 202 with 3rd bonding part 203 disconnects, and lock unit 109 is in engagement state, and what now electromotor 301 was produced moves Power is exported to differential mechanism 100 after passing through the first input shaft 101, power output shaft 103, by differential mechanism 100 Power is distributed to into the driving wheel of both sides.

And for example, the second bonding part 202 is engaged with the 3rd bonding part 203, the first bonding part 201 with 3rd bonding part 203 disconnects, and lock unit 109 is off, and what now electromotor 301 was produced moves Power is exported to differential mechanism 100 after passing through the second input shaft 102, power output shaft 103, by differential mechanism 100 Power is distributed to into the driving wheel of both sides.

For another example, double clutch 204 is all off, and lock unit 109 is in engagement state, the first dynamoelectric and power generation The power that machine 401 is produced is exported to differential mechanism 100 after passing through the first input shaft 101, power output shaft 103, Power is distributed to the driving wheel of both sides by differential mechanism 100.

For another example, the first bonding part 201 is engaged with the 3rd bonding part 203, the second bonding part 202 with 3rd bonding part 203 disconnects, and lock unit 109 is off, and what now electromotor 301 was produced moves Power is exported to the first motor generator 401 by the first input shaft 101, drives the first motor generator 401 Generated electricity as motor, realized power generation in parking function.

With Figure 10 embodiments, Figure 11 embodiments differ primarily in that the first motor generator 401 is defeated with second Enter axle 102 to link, and Figure 10 embodiments are then the first motor generator 401 and the first input shaft 101 It is dynamic, for remainder is then repeated no more.

One transmission gear for differring primarily in that Figure 12 embodiments of Figure 12 embodiments and Figure 10 embodiments More than Figure 10 embodiments, these gears are engaged by the control of corresponding gear lock unit, and this is general for this area What logical technical staff will be appreciated that, therefore no longer repeat one by one here.

Figure 13 embodiments are defeated with the power of an embodiment for differring primarily in that Figure 13 of Figure 10 embodiments Shaft is for multiple, and is correspondingly arranged on multiple transmission gears, and these gears are controlled by corresponding gear lock unit Engagement, this is all will be appreciated that for those of ordinary skill in the art, therefore is no longer repeated one by one here.

The embodiment of Figure 14-Figure 15 is differred primarily in that with of Figure 10 embodiments and eliminates lock unit 109, while empty set driven gear 108 is directly anchored on power output shaft 103, therefore Figure 14-figure 15 embodiments are similar to the transmission condition of Figure 10 embodiments but there are some difference, such as Figure 14 and Figure 15 Embodiment cannot realize power generation in parking operating mode etc., these for the ordinary skill in the art should All will be appreciated that, therefore no longer repeat one by one here.

For the embodiment of Figure 16-Figure 19, compared with Figure 10 embodiments, difference is that to increased rear-guard poor Speed lock.

Reference picture 16- Figure 18 is simultaneously combined shown in Fig. 1-Fig. 9, and the first gear ring 13 is linked with the near front wheel 910a, Link with the near front wheel 910a as the first gear ring 13 passes through the first external tooth 603 and left half axle gear 601, second Gear ring 23 and off-front wheel 910b linkages, such as the second gear ring 23 pass through the second external tooth 604 and right axle shaft gear 602 are linked with off-front wheel 910b.4th motor generator 901 is joined with left rear wheel 910c by gear structure Dynamic, such as the 4th motor generator 901 passes through gear W1, W2, W3, W4 and left rear wheel 910c links, tooth Wheel W1 is coaxial with the 4th motor generator 901 to be connected, and gear W1 is engaged with gear W2, gear W2 and tooth Wheel W3 is coaxially connected, and gear W3 is engaged with gear W4, and gear W4 can be fixedly installed on left half axle 904 On, left rear wheel 910c is provided with left half axle 904.Similarly, the 5th motor generator 902 passes through tooth Wheel construction is linked with off hind wheel 910d, and such as the 5th motor generator 902 passes through gear X1, X2, X3, X4 Link with off hind wheel 910d, gear X1 is coaxial with the 5th motor generator 902 to be connected, gear X1 and tooth Wheel X2 engagements, gear X2 are coaxially connected with gear X3, and gear X3 is engaged with gear X4, gear X4 Can be fixedly installed on right axle shaft 905, on right axle shaft 905, be provided with off hind wheel 910d.

In the example of Figure 16, anti-skidding lock unit 903 is arranged for synchromesh gear W4 and gear X4, Such as anti-skidding lock unit 903 is arranged on gear W4 and for engage gear X4.In the example of Figure 17, Anti-skidding lock unit 903 is arranged for synchromesh gear W1 and gear X1, and for example anti-skidding lock unit 903 is arranged On gear W1 and for engage gear X1.In the example of Figure 18, anti-skidding lock unit 903 is arranged to For synchromesh gear W2 and gear X2, for example anti-skidding lock unit 903 is arranged on gear W2 on and is used to connect Close gear X2.

In the example of Figure 19, anti-skidding lock unit 903 is arranged for synchronous left half axle 904 and right axle shaft 905, such as anti-skidding lock unit 903 is arranged on left half axle 904 and for engaging right axle shaft 905, the enforcement In example, the 4th motor generator 901 and the 5th motor generator 902 are wheel motor.

To sum up, anti-skidding lock unit 903 is arranged to optionally synchronization left rear wheel 910c and off hind wheel 910d, In other words, when anti-skidding lock unit 903 is in engagement state, left rear wheel 910c and off hind wheel 910d will be same Step rotation, i.e., at the same speed, rotating Vortex, now left rear wheel 910c and off hind wheel 910d will not differential rotate. And when anti-skidding lock unit 903 is off, the 4th motor generator 901 can be operated alone left rear wheel 910c, the 5th motor generator 902 can be operated alone off hind wheel 910d, and two trailing wheels are separate, mutual Do not interfere, so as to realize the differential rotating function of wheel.

Additionally, for technical scheme and/or technical characteristic described in the various embodiments described above, mutually not rushing In the case of prominent, not conflicting, those skilled in the art can by the technical scheme in above-described embodiment and / or technical characteristic be mutually combined, the technical scheme after combination can be two or more technical sides The superposition of case, the superposition of two or more technical characteristics or two or more technical schemes with The superposition of technical characteristic, thus, it is possible to realize each technical scheme and/or technical characteristic phase each other functionally Interaction and support, and the scheme after combining has more superior technique effect.

For example, those skilled in the art can be by 22 partly overlapping side of the first row star-wheel 12 and the second planetary gear Case is combined for the scheme of platy structure with the first row carrier 11 and the second planet carrier 21, so effectively can be subtracted The axial dimension of few differential mechanism 100, so that the volume of differential mechanism 100 is less.

And for example, those skilled in the art can be by 22 partly overlapping side of the first row star-wheel 12 and the second planetary gear The scheme that case is accommodated in planetary gear and planet carrier in installing space is combined, and so effectively not only can be reduced The axial dimension of differential mechanism 100, and planetary gear and planet carrier can also be made to be hidden in installing space and avoid Sudden and violent leakage is damaged outside, so as to increased service life, reduces maintenance cost.

For another example, those skilled in the art can be by the revolution axis of the first row star-wheel 12 and second planetary gear 22 The scheme of revolution dead in line and the revolution-radius and the revolution-radius of the second planetary gear 22 of the first row star-wheel 12 Identical scheme is combined, so that the structure of differential mechanism 100 is compacter, it is less to take volume, more just In arrangement.

However, it is to be understood that above-mentioned illustrating is only illustrative, for technical scheme and/ Or the combination of technical characteristic, those skilled in the art can carry out independent assortment in the case where not conflicting, and And the scheme after combining possesses more superior technique effect, the present invention has only made above-mentioned multiple examples briefly Bright, here is no longer exhaustive one by one.

Further it will be understood that the technical scheme after combinations thereof equally falls into protection scope of the present invention Within.

Generally speaking, differential mechanism 100 according to embodiments of the present invention, can effective save space, and reduce Weight, specifically, for this planet gear type differential mechanism 100 compares traditional bevel gear differential, Weight can reduce about 30%, while axial dimension about reduces 70%, can not only reduce bearing Frictional force, and the moment of torsion distribution of left and right wheelses can be realized, make the load of differential mechanism 100 be distributed more adduction Reason, more preferably, additionally due to adopting roller gear, transmission efficiency is also increased 100 rigidity of differential mechanism, Traditional Bevel Gear Drive efficiency of such as 6 class precisions and 7 class precisions about 0.97～0.98, and 6 grades are smart The column gear transmission efficiency of degree and 7 class precisions about 0.98～0.99, in addition using roller gear, also drops The low operating noise of differential mechanism 100, while reducing caloric value, substantially increases the longevity of differential mechanism 100 Life.In short, differential mechanism 100 according to embodiments of the present invention have lightweight, small size, low cost, Many advantages, such as transmission efficiency, noise are low, heating is little, the life-span is high.

Simultaneously as differential mechanism 100 according to embodiments of the present invention can save sun gear, and save the sun Wheel can have the advantage that：

Analyze from mechanics, cancel sun gear but differential is realized using gear ring, because the number of teeth of gear ring is compared It is more that sun gear can be arranged, while pitch circle is larger (when pitch circle refers to meshed transmission gear at node Tangent a pair of circles), such that it is able to distributed load more in a balanced way and torque is born, this is to differential mechanism 100 The raising in life-span is good.No sun gear, can preferably realize the lubrication of differential mechanism 100 simultaneously And cooling, that is to say, that can be formed inside sun gear, therefore planetary gear cavity due to eliminating, and tooth Circle engages the relation (sun gear belongs to external toothing with planetary gear) for being belonging to internal messing with planetary gear, in gear ring Lubricating oil can be stored, thus cooling and lubricant effect can be greatly improved.Further, since cancel sun gear, Parts are reduced, the quality and cost of differential mechanism 100 is reduced, makes differential mechanism 100 become more small-sized Change, lightweight.

And for the power-driven system 1000 with differential mechanism 100 according to embodiments of the present invention, Which mainly has spatially and in type of drive obvious advantage, by taking space advantage as an example, the power Drive system 1000 is particularly well-suited to new energy vehicle, as the power assembly of new energy vehicle is typically arranged In enging cabin, power assembly not only have variator, electromotor, while also have at least one motor, Due to enging cabin limited space, therefore can using compact differential mechanism 100 according to embodiments of the present invention Advantage is spatially obtained, arrangement is easily facilitated.And for example, as a example by the advantage for going up in a driving manner, due to root Greatly reduce according to the axial dimension of the differential mechanism 100 of the embodiment of the present invention, therefore axial space more preferably arranged, And there are differential mechanism 100 two gear rings can be better achieved and two motors as clutch end Power connector (as mentioned above that motor is connected by the external tooth of gear ring), and this is in traditional circular cone differential mechanism On be difficult to.

Vehicle 10000 according to embodiments of the present invention is briefly described below, as shown in figure 24, the vehicle 10000 Including the power-driven system 1000 in above-described embodiment, the power-driven system 1000 can be used for forerunner, Rear-guard is may naturally be used for, the present invention is not particularly limited to this.It should be appreciated that according to the present invention Other of the vehicle 10000 of embodiment construct such as brakes, driving system, steering etc. Prior art, and be well known to those skilled in the art, therefore no longer repeat one by one here.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example ", or " some examples " etc. description mean with reference to the embodiment or example describe it is concrete Feature, structure, material or feature are contained at least one embodiment or example of the present invention.In this theory In bright book, identical embodiment or example are necessarily directed to the schematic representation of above-mentioned term.And, The specific features of description, structure, material or feature can be in one or more any embodiment or examples In combine in an appropriate manner.Additionally, those skilled in the art can be by the difference described in this specification Embodiment or example are engaged and are combined.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment It is exemplary, it is impossible to be interpreted as limitation of the present invention, one of ordinary skill in the art is the present invention's In the range of above-described embodiment can be changed, change, replace and modification.

Claims (31)

1. a kind of power-driven system, it is characterised in that include：

Differential mechanism, the differential mechanism include：

The first row carrier, the first row star-wheel and the first gear ring, the first row star-wheel are arranged on In the first row carrier, the first row star-wheel is engaged with first gear ring；

Second planet carrier, the second planetary gear and the second gear ring, second planetary gear are arranged on On second planet carrier, second planetary gear is engaged with second gear ring and described Two planetary gears are also engaged with the first row star-wheel；

Wherein, first gear ring and second gear ring constitute two of the differential mechanism and move Power outfan, the first row carrier and second planet carrier constitute the power of the differential mechanism Input；

Variator, the variator are connected with the differential mechanism；

Electromotor and the first motor generator, the electromotor and first motor generator respectively with it is described Variator is connected, and the power for producing can be passed through institute by the electromotor and/or first motor generator State variator to export to the power intake of the differential mechanism.

2. power-driven system according to claim 1, it is characterised in that the first row star-wheel Partly overlapped with second planetary gear in the axial direction.

3. power-driven system according to claim 2, it is characterised in that the first row star-wheel Including：First teeth portion and the second teeth portion, second planetary gear include：3rd teeth portion and the 4th teeth portion, institute State the first teeth portion to engage with first gear ring, second teeth portion is with the 3rd teeth portion on the axial direction Correspondence is overlapped and is engaged and coordinates, and the 4th teeth portion is engaged with second gear ring.

4. power-driven system according to claim 1, it is characterised in that the first row star-wheel Roller gear is with the second planetary gear.

5. power-driven system according to claim 1, it is characterised in that first gear ring and Each in second gear ring includes：

Body panels portion and be arranged on the body panels portion periphery edge annular side wall portion, the annular side Multiple teeth are provided with the internal face of wall portion, are limited between the body panels portion and the annular side wall portion The cavity of cavity, the cavity of first gear ring and second gear ring toward each other to constitute installing space, The first row carrier and the first row star-wheel and second planet carrier and second planetary gear receipts It is contained in the installing space.

6. power-driven system according to claim 1, it is characterised in that first gear ring and Second gear ring is provided with gap in the axial direction.

7. power-driven system according to claim 1, it is characterised in that each described the first row Star-wheel is configured with a first planet wheel shaft, and two ends of the first planet wheel shaft are respectively with described first Planet carrier is connected with second planet carrier, and each described second planetary gear is configured with second planetary gear Axle, two ends of second planet wheel spindle respectively with the first row carrier and the second planet carrier phase Even.

8. power-driven system according to claim 1, it is characterised in that the first row star-wheel Revolution axis and second planetary gear revolution dead in line, the revolution-radius of the first row star-wheel with The revolution-radius of second planetary gear are identical.

9. power-driven system according to claim 1, it is characterised in that the variator includes Power output shaft and multiple input shafts；

One of input shaft in the plurality of input shaft be arranged to optionally with the power output Axle links, and the power output shaft is arranged to the power intake linkage with the differential mechanism；

Wherein, first motor generator is linked with one of input shaft.

10. power-driven system according to claim 9, it is characterised in that the power output shaft Overhead set is provided with empty set driven gear, and the empty set driven gear is linked with one of input shaft, The power-driven system also includes lock unit, and the lock unit is arranged for the synchronous power output shaft With the empty set driven gear.

11. power-driven systems according to claim 9, it is characterised in that the power output shaft Overhead set is provided with empty set driven gear and is fixedly installed fixed driven gear, the power-driven system Also include lock unit：The lock unit is arranged for the synchronous power output shaft and the empty set driven tooth Wheel；

It is fixedly installed fixed driving gear on each described input shaft, the empty set driven gear and described solid Determine driven gear to engage with corresponding fixed driving gear respectively.

12. power-driven systems according to claim 9, it is characterised in that each described input shaft On be fixedly installed multiple fixed driving gears, it is driven that the power output shaft overhead set is provided with multiple empty sets Gear, the empty set driven gear are engaged with corresponding fixed driving gear, each described empty set driven gear The power output shaft can be bonded to by the synchronization of corresponding gear lock unit.

13. power-driven systems according to claim 9, it is characterised in that described one of them is defeated Enter input shaft on axle and fix motor gear, it is defeated that the power output shaft overhead set is provided with power Shaft empty set motor gear, the power output shaft empty set motor gear fix motor gear with the input shaft Engagement, first motor generator fix motor gear linkage, the power drive line with the input shaft System also includes lock unit, and the lock unit is arranged for the synchronous power output shaft and the power output Axle empty set motor gear.

14. power-driven systems according to claim 1, it is characterised in that the variator includes Power output shaft and multiple input shafts；

Each described input shaft be arranged to and the power output shaft linkage, the power output shaft be arranged to The power intake linkage of the differential mechanism；

Wherein described first motor generator is arranged to and the one of input shaft in the plurality of input shaft Linkage.

15. power-driven systems according to claim 14, it is characterised in that the power output Multiple fixed driven gears are fixedly installed on axle, on each described input shaft, fixed driving tooth is fixedly installed Wheel, the fixed driven gear and the corresponding fixed driving gear engagement.

16. power-driven systems according to claim 1, it is characterised in that the variator includes First input shaft and the second input shaft, second input shaft are set on first input shaft, described It is connected by double clutch between motivation and first input shaft, second input shaft.

17. power-driven systems according to claim 9, it is characterised in that the power output shaft Coaxially fix with the first row carrier, second planet carrier.

18. power-driven systems according to claim 9, it is characterised in that also include：First is defeated Go out portion and the second output section, first output section is linked with first gear ring, second output section with The second gear ring linkage.

19. power-driven systems according to claim 18, it is characterised in that first output Portion is left half axle gear, and second output section is right axle shaft gear；And

The first external tooth is provided with first gear ring, the second external tooth on second gear ring, is provided with, it is described First external tooth is engaged with the left half axle gear, and second external tooth is engaged with the right axle shaft gear.

20. power-driven systems according to claim 1, it is characterised in that the variator includes：

Multiple input shafts and multiple power output shafts, first motor generator and the plurality of power output One of power output shaft linkage in axle, each described power output shaft is arranged to can be by from described The power intake of the power output of motivation and/or the first motor generator to the differential mechanism.

21. power-driven systems according to claim 20, it is characterised in that the variator is also Including：Motor power axle, first motor generator are coaxially connected with the motor power axle, the electricity Mechanomotive force axle is arranged to link with one of power output shaft.

22. power-driven systems according to claim 21, it is characterised in that the variator is also Including：First motor gear and the second motor gear, first motor gear are fixedly installed on the motor On line shaft, second motor gear is fixedly installed on one of power output shaft, and described One motor gear is engaged with second motor gear.

23. power-driven systems according to claim 20, it is characterised in that the variator is also Including：

Reverse output gear and reverse idler gear, the reverse output gear are described dynamic with the differential mechanism Power input links, and the reverse idler gear is engaged with the reverse output gear, the center tooth of reversing gear Bye is enclosed within one of power output shaft and can be engaged by the synchronization of reverse gear synchronizer To one of power output shaft.

24. power-driven systems according to claim 23, it is characterised in that it is described one of them Power output shaft overhead set is provided with power output shaft empty set output gear, the power output shaft empty set output Gear shares the reverse gear synchronizer with the reverse idler gear, fixed on remaining each power output shaft It is provided with power output shaft and fixes output gear, it is defeated with the power that the power output shaft fixes output gear The power intake linkage respectively with the differential mechanism of shaft empty set output gear.

25. power-driven systems according to claim 24, it is characterised in that also include：

Jackshaft, the jackshaft are coaxially fixed with the first row carrier and second planet carrier, described Countershaft-gear is fixedly installed on jackshaft, the countershaft-gear is fixed with the power output shaft respectively The engagement of output gear, the power output shaft empty set output gear and the reverse output gear.

26. power-driven systems according to claim 1, it is characterised in that also include：

First output section and the second output section, first output section are linked with first gear ring, and described Link with second gear ring two output sections；

Second motor generator and the 3rd motor generator, second motor generator and the described first output Portion links, and the 3rd motor generator is linked with second output section.

27. power-driven systems according to claim 1, it is characterised in that the variator includes First input shaft, the second input shaft and the 3rd input shaft, the 3rd input shaft are set in second input On axle, second input shaft is set on first input shaft, and the electromotor and described first is input into It is connected by three clutches between axle, second input shaft and the 3rd input shaft.

28. power-driven systems according to claim 1, it is characterised in that first gear ring with The near front wheel links, and second gear ring is linked with off-front wheel；

The power-driven system also includes：

4th motor generator and the 5th motor generator, the 4th motor generator are linked with left rear wheel, 5th motor generator is linked with off hind wheel；And

Anti-skidding lock unit, after the anti-skidding lock unit is arranged to the optionally synchronous left rear wheel and the right side Wheel, so that the left rear wheel and the off hind wheel synchronous rotary.

29. a kind of power-driven systems, it is characterised in that include：

Differential mechanism, the differential mechanism include：

The first row carrier, the first row star-wheel and the first gear ring, the first row star-wheel are arranged on In the first row carrier, the first row star-wheel is engaged with first gear ring；

Second planet carrier, the second planetary gear and the second gear ring, second planetary gear are arranged on On second planet carrier, second planetary gear is engaged with second gear ring and described Two planetary gears are also engaged with the first row star-wheel；

Wherein, first gear ring and second gear ring constitute two of the differential mechanism and move Power outfan, the first row carrier and second planet carrier constitute the power of the differential mechanism Input；

Variator, the variator include：

First input shaft and the second input shaft, it is defeated that second input shaft is set in described first Enter on axle, be fixedly installed on first input shaft the first fixation driving gear, described second The second fixation driving gear is fixedly installed on input shaft；

Power output shaft, is fixedly installed fixed driven gear and sky on the power output shaft Set is provided with empty set driven gear, and the empty set driven gear fixes driving gear with described first Engagement, the fixed driven gear are engaged with the described second fixation driving gear, and the power is defeated Shaft is coaxially fixed with the first row carrier and second planet carrier；

Lock unit, the lock unit are arranged on the power output shaft and for engaging the sky Set driven gear；

Electromotor, be provided between the electromotor and first input shaft and second input shaft it is double from Clutch；

First motor generator, first motor generator fix driving gear linkage with described first；

First output section and the second output section, first output section are linked with first gear ring, and described Link with second gear ring two output sections；

Second motor generator and the 3rd motor generator, second motor generator and the described first output Portion links, and the 3rd motor generator is linked with second output section.

30. a kind of power-driven systems, it is characterised in that include：

Differential mechanism, the differential mechanism include：

The first row carrier, the first row star-wheel and the first gear ring, the first row star-wheel with it is described The first row carrier connects, and the first row star-wheel is engaged with first gear ring；

Second planet carrier, the second planetary gear and the second gear ring, second planetary gear with it is described Second planet carrier connects, and second planetary gear is engaged with second gear ring and second row Star-wheel is also engaged with the first row star-wheel, wherein, first gear ring and second gear ring Two clutch ends of the differential mechanism are constituted, and first gear ring is joined with the near front wheel Dynamic, second gear ring is linked with off-front wheel；

Variator, the variator include：

First input shaft and the second input shaft, it is defeated that second input shaft is set in described first Enter on axle, be fixedly installed on first input shaft the first fixation driving gear, described second The second fixation driving gear is fixedly installed on input shaft；

Power output shaft, is fixedly installed fixed driven gear and sky on the power output shaft Set is provided with empty set driven gear, and the empty set driven gear fixes driving gear with described first Engagement, the fixed driven gear are engaged with the described second fixation driving gear, and the power is defeated Shaft is coaxially fixed with the first row carrier and second planet carrier；

Lock unit, the lock unit are arranged on the power output shaft and for engaging the sky Set driven gear；

Electromotor, be provided between the electromotor and first input shaft and second input shaft it is double from Clutch；

First motor generator, first motor generator fix driving gear linkage with described first；

First output section and the second output section, first output section are linked with first gear ring, and described Link with second gear ring two output sections；

Second motor generator and the 3rd motor generator, second motor generator and the described first output Portion links, and the 3rd motor generator is linked with second output section；

4th motor generator and the 5th motor generator, the 4th motor generator are linked with left rear wheel, 5th motor generator is linked with off hind wheel；And

Anti-skidding lock unit, after the anti-skidding lock unit is arranged to the optionally synchronous left rear wheel and the right side Wheel, so that the left rear wheel and the off hind wheel synchronous rotary.

31. a kind of vehicles, it is characterised in that include dynamic according to any one of claim 1-30 Power-driven system.