CN107627830A - Integral shaft puts power assembly - Google Patents
Integral shaft puts power assembly Download PDFInfo
- Publication number
- CN107627830A CN107627830A CN201710859855.3A CN201710859855A CN107627830A CN 107627830 A CN107627830 A CN 107627830A CN 201710859855 A CN201710859855 A CN 201710859855A CN 107627830 A CN107627830 A CN 107627830A
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- Prior art keywords
- gear
- clutch
- battery
- shaft
- jackshaft
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- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000004308 accommodation Effects 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 210000000515 tooth Anatomy 0.000 description 5
- 230000009194 climbing Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
Present invention is disclosed a kind of integral shaft to put power assembly, including housing and it is fixed on the end cover for battery cells and differential assembly end cap at its both ends, three forms integral structure, it is internally provided with battery, speed changer, differential assembly, battery rotor with rolling pair with the stator being fixed on housing and between housing, the battery has an output shaft, the output shaft is hollow shaft and the input shaft as the speed changer simultaneously, the output shaft of the battery and the input shaft of the speed changer and two semiaxis of the differential assembly are coaxial, the left half axle of the differential assembly passes through from the inside of the output shaft of the battery.The present invention is simple and reliable for structure, in the case where ensureing security and delivery efficiency, farthest reduces the size of power assembly；Modularized design, all it is very helpful for producing, assembling and repair.
Description
Technical field
The present invention relates to a kind of power assembly of electric automobile, belong to automobile technical field.
Background technology
Speed changer is the core of automobile power assembly, and its internal part is more and complicated.In pure electric automobile power train
In system, using the speed changer of fixed speed ratio slow down mostly increases square, and so requirement to driving motor of pure electric automobile is very high,
The development cost of vehicle is substantially increased, and motor can not be made more to operate in high efficient area, is reduced pure electronic
The continual mileage of automobile.Because the motor of pure electric automobile has good governor control characteristics, pure electric automobile transmission system
Gear number should not be excessive, by pure electric vehicle power transmission system parameter match find two shift transmissions be that comparison is reasonable
Pure electric automobile transmission system.Two shift transmissions developed at present on pure electric automobile mainly have mechanical type manual speed-changer
（MT）, automatic mechanical transmission（AMT）And double-clutch automatic gearbox（DCT）.
When speed changer coordinates with motor, due to electric automobile, in starting and climbing, moment of torsion is big, and current of electric is than normal work
Electric current when making is several times greater or even tens times, has influence on the service life of motor and battery, and even motor is burnt out when serious.Electricity
For machine in high rotating speed constant power output, the climbing big speed of moment of torsion is low, and output power of motor can reduce, therefore climbing capacity is poor.This
Sample driver comfort is poor, and control when shifting gears to motor speed be also required to it is suitable accurate and rapid.Chinese patent
CN200920204204.1 is disclosed using planetary gear train form two-shift automatic speed variator, and its transmission moment of torsion is relatively low, but to gear
Manufacture level require it is very high therefore expensive, there is presently no widely used.
As Chinese patent CN201120028042.8 and CN201320028583.X are disclosed using synchronizer to two gear teeth
Wheel set carries out selection selection so as to carry out gear shift operation, and requirement of this structure for motor is higher, it is necessary to using low rotation
Inertia, high-precision motor, once because synchronizer successfully can not be coupled with power shift gear very much, then it is easy to burn out motor.And
And the problem of longitudinal size is bigger than normal also be present in the structure, because being the flat of spacing between differential assembly and motor output shaft
Row is set, and so mechanism arrangement for compact type type electric automobile causes very big puzzlement.
In order to solve this problem, Chinese patent CN201110173011.6, CN201410829214.X,
CN201410836093.1 employs the selection that double clutch structures carry out gear, but between differential assembly and motor output shaft
Spacing the problem of be arrangeding in parallel still do not solve, and structure is all loose, is also unfavorable for overall maintenance.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of the prior art, there is provided a kind of axial arranged power of integral type is total
Into.
The purpose of the present invention is achieved through the following technical solutions：
A kind of integral shaft puts power assembly, including housing and the end cover for battery cells and the differential assembly end that are fixed on its both ends
Lid, three form integral structure, are internally provided with battery, speed changer, differential assembly, and battery, which has, to be fixed on housing
Stator and the rotor between housing with rolling pair, the battery have an output shaft, and the output shaft is hollow shaft and together
The input shaft of speed changer described in Shi Zuowei, the output shaft of the battery and the input shaft of the speed changer and the differential mechanism are total
Into two semiaxis it is coaxial, the left half axle of the differential assembly passes through from the inside of the output shaft of the battery.
Preferably, the first cut-off is set in the housing, enclosure interior space is divided into battery containing space and speed changer holds
Between being empty, the bearings at both ends of the rotor is separately positioned on first cut-off and end cover for battery cells, the output shaft of the battery
Stretch out in first cut-off.
Preferably, the speed changer includes the gear driving gear being fixedly installed on the input shaft and two gear driving tooths
Wheel, an and jackshaft parallel with the input shaft, a gear driven gear and two is set with the jackshaft and keeps off driven tooths
Wheel, it is meshed respectively with described one gear driving gear and two gear driving gear.
Preferably, be provided with dual clutch between a gear driven gear and two gear driven gears, respectively first from
Clutch and second clutch, the first clutch and second clutch are set backwards and both shared outer hubs, and described first
The outer hub of clutch and second clutch be connected with the jackshaft by spline and can synchronous axial system, the first clutch,
Second clutch controls the coupling of a gear driven gear, two gear driven gears and the jackshafts respectively, the first clutch,
Second clutch is respectively and fixedly provided with a coaxial hollow bushing, for making the hydraulic pressure of the control first clutch, second clutch
Oil is by the way that the jackshaft is erected on first cut-off through the hollow bushing and its one end.
Preferably, coordinate to be provided between the jackshaft and the hollow bushing and be used to control the first clutch and the
The pressure oil duct of two clutches work, and for the oil leab to the first clutch and second clutch cooling, institute
State pressure oil duct to connect with the pressure oil-in being arranged on the case of transmission, the oil leab is with being arranged on the change
On fast device housing lubricating oil inlet connection, the pressure oil-in and lubricating oil inlet respectively with the case of transmission, sky
Sealing ring is provided between heart sleeve pipe, the sealing ring, which forms the gap between the case of transmission, hollow bushing, to be stored
Oily area.
Preferably, a synchronizer is provided between a gear driven gear and two gear driven gears, the synchronizer is fixed
In on the jackshaft and control one gear driven gear, two gear the driven gear optionally couplings with the jackshaft.
Preferably, the jackshaft is provided with travelling gear, the sliding tooth of the travelling gear and the differential assembly
Simultaneously transfer of torque forces differential casing to rotate for wheel engagement, the left half axle of moment of torsion transmission direction and the differential assembly, right half
Axle is vertical.
Preferably, the jackshaft is provided with parking ratchet wheel, or the differential casing is provided with parking ratchet wheel.
Preferably, the input shaft of the output shaft of the battery and the speed changer is same root hollow shaft, or for by shaft coupling
Two independent hollow shafts of device connection.
Preferably, the second cut-off is set in the housing, both sides are respectively speed changer accommodation space and differential mechanism accommodation space,
The bearing of the input shaft and the differential casing for supporting the speed changer is provided with second cut-off.
The beneficial effects are mainly as follows：
1st, it is simple and reliable for structure, in the case where ensureing security and delivery efficiency, farthest reduce the big of power assembly
It is small；
2nd, modularized design, all it is very helpful for producing, assembling and repair；
3rd, the perfect adaptation of parking structure, it is ensured that the use reliability of system synthesis；
4th, differential mechanism and gearbox and battery output shaft are coaxially disposed, and reduce the longitudinal size of power assembly, and combine and set
Put the support in the bearing of enclosure interior, it is ensured that overall rigidity.
Brief description of the drawings
Technical solution of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1：The front view of first embodiment of the invention；
Fig. 2：The front view of second embodiment of the invention；
Fig. 3：The oil circuit schematic diagram of the work of double clutch is controlled in first, second embodiment of the invention；
Fig. 4：The second oil circuit schematic diagram of the work of double clutch is controlled in first, second embodiment of the invention；
Fig. 5：The front view of third embodiment of the invention；
Fig. 6：The front view of fourth embodiment of the invention.
Embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited to, structure that one of ordinary skill in the art is made according to these embodiments, method or functionally
Conversion is all contained in protection scope of the present invention.
As shown in figure 1, put power assembly present invention is disclosed a kind of integral shaft, including housing 11 and be fixed on its two
The end cover for battery cells 12 and differential assembly end cap 13 at end, three form integral structure, are internally provided with battery, speed changer, difference
Fast device assembly.
The first cut-off 14 is set in the housing 11, both sides are respectively battery containing space and speed changer accommodation space；It is described
The second cut-off 15 is set in housing 11, both sides are respectively speed changer accommodation space and differential mechanism accommodation space.In the present invention, pass through power
The transmission direction of square makes speed changer accommodation space be arranged on centre.
Battery rotor 22 with rolling pair with the stator 21 being fixed on housing and between housing, the battery tool
There is an output shaft 23, the output shaft 23 is hollow shaft and the input shaft 31 as the speed changer simultaneously.The rotor 22
Bearings at both ends 24 is separately positioned on first cut-off 14 and end cover for battery cells 12, and the output shaft of the battery stretches out in described the
One cut-off 14.Input shaft 31 and the differential casing for supporting the speed changer are provided with second cut-off 15
44 bearing.The opposite side of the differential casing 44 is arranged on the differential assembly end cap 13 by bearing.The present invention
By such compact structure, all rotation things is supported well, reduce the generation for rotating bounce, transmission efficiency is significantly
Lifting.
In the present invention, the gear driving gear 32 and two that the speed changer includes being fixedly installed on the input shaft 31 is kept off
Driving gear 33, and a jackshaft 34 parallel with the input shaft 31, a gear driven tooth is set with the jackshaft 34
The gear driven gear 36 of wheel 35 and two, is meshed with described one gear driving gear 32 and two gear driving gear 33 respectively.
Embodiment as depicted in figs. 1 and 2, the gear driven gear 35 and two are provided with a pair of between keeping off driven gear 36
Clutch 37, the first clutch C1 and second clutch C2 that the double clutch 37 includes backwards to and set, both are shared outside one
Hub, the first clutch C1, second clutch C2 control respectively a gear driven gear 35, two gear driven gear 36 with it is described in
The coupling of countershaft 34.Specifically as shown in figure 3, the outer hub 30 of the first clutch C1 and second clutch C2 and the jackshaft
34 connected by spline 61 and can synchronous axial system, so, the first clutch C1 and second clutch C2 and the jackshaft
It is to be relatively fixed between 34, you can rotate simultaneously.
In the present embodiment, the first clutch C1, second clutch C2 are fixed with a coaxial hollow bushing 38, described
Jackshaft 34 is erected on first cut-off 14 through the hollow bushing 38 and its one end.Certainly, the hollow bushing 38
Can also directly with the jackshaft 34 fix, or both be mutually integrated.
As shown in Figure 3 and Figure 4, coordinate to be provided between the jackshaft 34 and the hollow bushing 38 and be used to control described the
The pressure oil duct 62 of one clutch C1 and second clutch C2 work, and for the first clutch C1 and the second clutch
The oil leab 63 of device C2 coolings, two hydraulic pressure oil ducts are non-interference.Can certainly be that pressure is directly opened up on jackshaft 34
Power oil duct 62 and oil leab 63, a part of the hollow bushing 38 as the jackshaft 34.
The pressure oil duct 62 connects with the pressure oil-in 64 being arranged on the case of transmission, the oil leab
63 connect with the lubricating oil inlet 65 being arranged on the case of transmission.The pressure oil-in 64 and lubricating oil inlet 65 are divided
Sealing ring 66 is provided with not between the case of transmission, hollow bushing 38, the sealing ring 66 is lip-type packing.It is described close
Gap between the case of transmission, hollow bushing 38 is formed oil storage section by seal 66, so when the jackshaft 34
When being rotated relative to the case of transmission, the oil storage section can play to hydraulic oil in the pressure oil duct 62 and oil leab 63
One pressure stabilization function, it is ensured that the first clutch C1 and second clutch C2 will not be realized to clutch by oil shock
Smoothed curve control.
The specific oil circuit of the pressure oil and lubricating oil is set, as shown in Figure 3 and Figure 4, can with single-pipeline or multi-pipeline,
Can be with one direction or multi-direction, no longer exhaustion herein, as long as that is, both are without mutual crossfires.
Embodiment as shown in Figure 5 and Figure 6, the gear driven gear 35 and two are provided with together between keeping off driven gear 36
Device 39 is walked, the synchronizer 39, which is fixed on the jackshaft 34 and controls a gear driven gear 35, two to keep off driven gear 36, to be selected
Coupling of the selecting property ground with the jackshaft 34.Category is engaged between synchronizer and a gear gear driven gear 36 of driven gear 35, two
In prior art, will not be repeated here.
The jackshaft 34 is provided with travelling gear 40, the drive gear of the travelling gear 40 and the differential assembly
Simultaneously transfer of torque forces differential casing 44 to rotate for 42 engagements, the left half axle 41 of moment of torsion transmission direction and the differential assembly,
Right axle shaft 43 is vertical.In the present invention, the output shaft 23 of the battery and the input shaft 31 of the speed changer and the differential mechanism
Two semiaxis of assembly are coaxial, and the left half axle 41 of the differential assembly passes through from the inside of the output shaft 23 of the battery.
Differential mechanism is coaxially disposed with gearbox and battery output shaft, reduces the longitudinal size of power assembly, and combine and be arranged on shell
The support of the bearing in internal portion, it is ensured that overall rigidity.
In the present invention, also there is announcement for the P structures for keeping off parking, as shown in figures 1 and 3, the jackshaft 34 is provided with
Parking ratchet wheel 5.As shown in Figure 2 and Figure 4, the differential casing 44 is provided with parking ratchet wheel 5.When the present invention needs parking：
Park pawl is driven by push rod assembly, and then coordinated with parking ratchet wheel 5, realizes parking.
In the present invention, the output shaft 23 of the battery and the input shaft 31 of the speed changer are same root hollow shaft, or are
The two independent hollow shafts connected by shaft coupling.
Simply disclose the course of work of first embodiment of the invention below, battery by the output torque of output shaft 23,
When electric automobile needs a gear output, the left side first clutch C1 of the double clutch 37 in Fig. 1 starts, and makes a gear driven tooth
The coupling of wheel 35 and the jackshaft 34, a gear driving gear 32 transmits moment of torsion to jackshaft 34, and then passes through travelling gear
40 transmit moment of torsion to the differential assembly.When electric automobile needs two gear output, as long as the right side second of double clutch 37
Clutch C2 starts, simple and convenient.Similarly, second embodiment is the course of work so.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (10)
1. integral shaft puts power assembly, it is characterised in that：Including housing（11）And it is fixed on the end cover for battery cells at its both ends
（12）With differential assembly end cap（13）, three's formation integral structure, battery, speed changer, differential assembly are internally provided with,
Battery has the stator being fixed on housing（21）And there is the rotor of rolling pair between housing（22）, the battery is with one
Output shaft（23）, the output shaft（23）For the hollow shaft and simultaneously input shaft as the speed changer（31）, the battery
Output shaft（23）With the input shaft of the speed changer（31）And two semiaxis of the differential assembly are coaxial, the differential
The left half axle of device assembly（41）From the output shaft of the battery（23）Inside pass through.
2. integral shaft according to claim 1 puts power assembly, it is characterised in that：The housing（11）Inside set first every
It is disconnected（14）, enclosure interior space is divided into battery containing space and speed changer accommodation space, the rotor（22）Bearings at both ends
（24）It is separately positioned on first cut-off（14）And end cover for battery cells（12）On, the output shaft of the battery stretches out in described first
Cut-off（14）.
3. integral shaft according to claim 2 puts power assembly, it is characterised in that：The speed changer includes fixed setting
In the input shaft（31）On one gear driving gear（32）And two gear driving gear（33）, and one and the input shaft（31）
Parallel jackshaft（34）, the jackshaft（34）On be set with a gear driven gear（35）With two gear driven gears（36）, point
Driving gear is not kept off with described one（32）And two gear driving gear（33）It is meshed.
4. integral shaft according to claim 3 puts power assembly, it is characterised in that：The one gear driven gear（35）With
Two gear driven gears（36）Between be provided with dual clutch（37）, respectively first clutch（C1）And second clutch（C2）,
The first clutch（C1）And second clutch（C2）Set backwards and both share an outer hubs（30）, and the outer hub（30）
With the jackshaft（34）Pass through spline（61）Connection and can synchronous axial system, the first clutch（C1）, second clutch
（C2）The gear of control one driven gear respectively（35）, two gear driven gears（36）With the jackshaft（34）Coupling, described first
A coaxial hollow bushing is respectively and fixedly provided with clutch, second clutch（38）, for making the control first clutch, second
The hydraulic oil of clutch passes through the jackshaft（34）Through the hollow bushing（38）And its one end be erected at described first every
It is disconnected（14）On.
5. integral shaft according to claim 4 puts power assembly, it is characterised in that：The jackshaft（34）With the sky
Heart sleeve pipe（38）Between coordinate be provided be used for control the first clutch（C1）And second clutch（C2）The pressure oil of work
Road（62）, and for the first clutch（C1）And second clutch（C2）The oil leab of cooling（63）, the pressure
Power oil duct（62）With the pressure oil-in being arranged on the case of transmission（64）Connection, the oil leab（63）With setting
Lubricating oil inlet on the case of transmission（65）Connection, the pressure oil-in（64）And lubricating oil inlet（65）Respectively
With the case of transmission, hollow bushing（38）Between be provided with sealing ring（66）, the sealing ring（66）The speed change will be located at
Device housing, hollow bushing（38）Between gap formed oil storage section.
6. integral shaft according to claim 3 puts power assembly, it is characterised in that：The one gear driven gear（35）With
Two gear driven gears（36）Between be provided with a synchronizer（39）, the synchronizer（39）It is fixed on the jackshaft（34）Go up and control
The gear driven gear of system one（35）, two gear driven gears（36）Optionally with the jackshaft（34）Coupling.
7. power assembly is put according to any described integral shafts of claim 3-6, it is characterised in that：The jackshaft（34）On
Provided with travelling gear（40）, the travelling gear（40）With the drive gear of the differential assembly（42）Engage simultaneously transfer of torque
Force differential casing（44）Rotate, moment of torsion transmission direction and the left half axle of the differential assembly（41）, right axle shaft（43）Hang down
Directly.
8. integral shaft according to claim 7 puts power assembly, it is characterised in that：One parking ratchet wheel（5）Optionally
It is arranged on the jackshaft（34）Or the differential casing（44）On.
9. integral shaft according to claim 1 puts power assembly, it is characterised in that：The output shaft of the battery（23）With
The input shaft of the speed changer（31）For same root hollow shaft, or two independent hollow shafts to be connected by shaft coupling.
10. integral shaft according to claim 1 puts power assembly, it is characterised in that：The housing（11）Inside set second
Cut-off（15）, both sides are respectively speed changer accommodation space and differential mechanism accommodation space, and described second separates（15）On be provided with use
In the input shaft for supporting the speed changer（31）And the differential casing（44）Bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859855.3A CN107627830A (en) | 2017-09-21 | 2017-09-21 | Integral shaft puts power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859855.3A CN107627830A (en) | 2017-09-21 | 2017-09-21 | Integral shaft puts power assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107627830A true CN107627830A (en) | 2018-01-26 |
Family
ID=61101557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710859855.3A Pending CN107627830A (en) | 2017-09-21 | 2017-09-21 | Integral shaft puts power assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107627830A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177521A (en) * | 2018-01-29 | 2018-06-19 | 深圳市大地和电气股份有限公司 | The electric-powered assembly of novel coaxial formula |
| CN108583273A (en) * | 2018-03-27 | 2018-09-28 | 郑州智驱科技有限公司 | A kind of gear speed change electricity drive bridge of integrated form two of having electronic parking |
| CN109398060A (en) * | 2018-12-11 | 2019-03-01 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated electric drive system |
| CN110319162A (en) * | 2019-05-30 | 2019-10-11 | 北京理工大学 | A kind of bio-robot variable gear ratio high torque density dynamic unit |
| CN112659889A (en) * | 2020-12-23 | 2021-04-16 | 浙江吉利控股集团有限公司 | Coaxial pure electric vehicle power system with power disconnection function and vehicle |
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| CN201916386U (en) * | 2010-12-28 | 2011-08-03 | 杭州前进齿轮箱集团股份有限公司 | Pressure oil sealing mechanism with double-clutch structure |
| CN102490595A (en) * | 2011-12-30 | 2012-06-13 | 上海中科深江电动车辆有限公司 | Integrated electric power assembly for electric automobile |
| CN207156917U (en) * | 2017-09-21 | 2018-03-30 | 吉泰车辆技术（苏州）有限公司 | Integral shaft puts power assembly |
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| CN201916386U (en) * | 2010-12-28 | 2011-08-03 | 杭州前进齿轮箱集团股份有限公司 | Pressure oil sealing mechanism with double-clutch structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177521A (en) * | 2018-01-29 | 2018-06-19 | 深圳市大地和电气股份有限公司 | The electric-powered assembly of novel coaxial formula |
| CN108583273A (en) * | 2018-03-27 | 2018-09-28 | 郑州智驱科技有限公司 | A kind of gear speed change electricity drive bridge of integrated form two of having electronic parking |
| CN108583273B (en) * | 2018-03-27 | 2021-08-17 | 郑州智驱科技有限公司 | Integrated two-gear variable-speed electric drive bridge with electronic parking function |
| CN109398060A (en) * | 2018-12-11 | 2019-03-01 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated electric drive system |
| CN110319162A (en) * | 2019-05-30 | 2019-10-11 | 北京理工大学 | A kind of bio-robot variable gear ratio high torque density dynamic unit |
| CN110319162B (en) * | 2019-05-30 | 2020-09-01 | 北京理工大学 | Variable-speed-ratio high-torque-density power unit for bionic robot |
| US11156271B2 (en) | 2019-05-30 | 2021-10-26 | Beijing Institute Of Technology | Power unit for bionic robot, robot joint, and robot |
| CN112659889A (en) * | 2020-12-23 | 2021-04-16 | 浙江吉利控股集团有限公司 | Coaxial pure electric vehicle power system with power disconnection function and vehicle |
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