CN106042912B - A kind of dual-motor drive system and the electric vehicle for being configured with the system - Google Patents
A kind of dual-motor drive system and the electric vehicle for being configured with the system Download PDFInfo
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- CN106042912B CN106042912B CN201610528434.8A CN201610528434A CN106042912B CN 106042912 B CN106042912 B CN 106042912B CN 201610528434 A CN201610528434 A CN 201610528434A CN 106042912 B CN106042912 B CN 106042912B
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- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention relates to automotive powers.It is intended to provide a kind of dual-motor drive system, including first motor, the second motor, further includes sun gear, planetary gear, gear ring and planet carrier；Fixed axis gear and driving gear；The motor shaft of second motor is connected and fixed with driving gear wheel；The fixed axis gear is located at gear ring inner with driving gear, and fixed axis gear is engaged with gear ring and driving gear respectively；It further include the first freewheel clutch for controlling sun gear rotation；Further include the second freewheel clutch, the motor shaft of first motor is connect by second freewheel clutch with driving gear；Further include third clutch, the third clutch is the combination of third freewheel clutch or actuator-operated clutch or third freewheel clutch and actuator-operated clutch.Dual-motor drive system provided by the invention can realize automatic switchover of the electric vehicle under different operating modes, and clutch linkage control device need not be separately provided.
Description
Technical field
The present invention relates to automotive power more particularly to a kind of automobile-used Two axle drive torques of dual-motor electric and rotating speed certainly
Dynamic or semi-automatic overlapping system and the electric vehicle for being configured with the overlapping system.
Background technology
Currently, electric vehicle has the characteristics that be better than conventional internal combustion rolling stock in many aspects, such as zero-emission, high efficiency, nothing
Need to expend petroleum resources, operate steadily, noise is small etc..Previous electrical vehicular power source mostly uses single motor, but in operational process
Middle discovery, for single motor there is torque deficiency, motor speed is excessively high when operating, influences the technical problems such as electrical machinery life.For this
There is the electric vehicle of Dual-motors Driving currently on the market in technical problem.Such as application number：201210024534.9, title：It is electronic
The control system of automobile and its bi-motor coupling speed change gear and the device discloses a kind of bi-motor torsion in the patent document
Square and rotating speed stacking apparatus, the technical solution provided be include fixed axis gear mechanism, connect with first motor, it is defeated with power
Go out gear；And planetary gear mechanism, it is connect with the second motor, including：Sun gear has and is connect too with second motor
Sun wheel central shaft；Ring gear is set on the outside of the sun gear；Multiple planetary gears are arranged in the sun gear and the internal tooth
Between circle；And planet carrier, the multiple planetary gear is connected, and output power to the rotation axis of wheel, is characterized in that, also wraps
Include linkage control device and torque coupling control device.Each clutch is realized by linkage control device and torque coupling control device
The clutch of device switches, according to the specification of the patent document and Figure of description 5 it is found that linkage control device and torque coupling control
Device processed uses hydraulic control, complicated, not only increases manufacturing cost, and failure can be caused in actual moving process
Rate is promoted.Description according further to specification and combine Figure of description 1 it is found that first motor motor shaft and fixed axis gear machine
Structure connects, and the motor shaft of the second motor is connect with sun gear center, and two motor shafts cannot achieve coaxial line installation, this pacifies in engineering
Larger difficulty can be caused by loading onto.
Invention content
The present invention is intended to provide one kind can automatically switch each clutch on-off, reach torque and rotating speed automatically or semi-automatically
The system of superposition and the electric vehicle being configured to are separately provided clutch controller with solution and cause in the prior art
Complicated, high failure rate technological deficiency.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is：A kind of dual-motor drive system, including first
Motor, the second motor further include sun gear, planetary gear, gear ring and planet carrier；
Further include fixed axis gear and driving gear；
The motor shaft of second motor is connected and fixed with driving gear；
It is characterized in that：The fixed axis gear and driving gear are located at gear ring inner, fixed axis gear respectively with gear ring and
Drive gear engagement；
It further include the first freewheel clutch for controlling sun gear rotation；
Further include the second freewheel clutch, second freewheel clutch connects the motor shaft of first motor and driving gear
It connects；
Further include third clutch, the third clutch is that third freewheel clutch or actuator-operated clutch or third surmount
The combination of clutch and actuator-operated clutch, the third clutch by the motor shaft of first motor and sun gear it is controlled or automatically from
Close, or by the motor shaft of first motor and sun gear in the case of automatic clutch by sun gear and driving gear it is controlled from
It closes；
It can realize the automatic superposition of torque when the rotating forward of the second motor, first motor rotate forward, the second motor rotates forward, the
The controlled or automatic superposition of rotating speed can be realized when one motor reversal.
Further, the motor shaft of the first motor, the motor shaft of the second motor, sun gear axle center, gear shaft
The heart is located on same axis.
Further, the third clutch is the combination of freewheel clutch and actuator-operated clutch, the electricity of first motor
It is connected, is additionally provided between the motor shaft and sun gear of first motor controlled by third freewheel clutch between arbor and sun gear
Clutch realizes that torque is superimposed with the automatic of rotating speed when vehicle advances, real by the reversion of the second motor, the reversion of first motor
Existing car-backing function.
Further, the third clutch is actuator-operated clutch, and the motor shaft of first motor passes through actuator-operated clutch
It is connect with sun gear, realizes the automatic superposition of torque when the second motor rotates forward, first motor rotates forward, the second motor rotates forward, the
One motor reversal realizes that the controlled superposed of rotating speed, the second motor reversal, first motor reversion realize car-backing function.
Further, third clutch is the combination of freewheel clutch and actuator-operated clutch, the wherein motor of first motor
It is connected by freewheel clutch between axis and sun gear, drives and connected by actuator-operated clutch between gear and sun gear, the
The automatic superposition of torque is realized when two motors rotate forward, first motor rotates forward, the second motor rotates forward, rotating speed is realized in first motor reversion
Automatic superposition, the second motor reversal realize car-backing function.
Further, in fixed carrier, the second motor → driving gear → fixed axis gear → gear ring → planetary gear →
The transmission ratio of sun gear is more than 1.
The present invention also provides a kind of electric vehicles, including first motor and the second motor, and first motor, the second motor are adopted
It is installed with Two axle drive torque above-mentioned and the automatic overlapping system of rotating speed.
Dual-motors Driving torque provided by the invention can realize electric vehicle in different works from the automatic overlapping system of rotating speed
Clutch linkage control device need not be separately provided in automatic switchover under condition, the energy as long as the positive and negative rotation for controlling the second motor
It realizes the operating modes such as torque couple, rotating speed coupling and fixed no-load voltage ratio, reduces manufacturing cost, ensure the reliable and stable of vehicle
Operation.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the Two axle drive torque and the automatic overlapping system first embodiment of rotating speed.
Attached drawing 2 is the structural schematic diagram of the Two axle drive torque and the automatic overlapping system second embodiment of rotating speed.
Attached drawing 3 is the structural schematic diagram of the Two axle drive torque and the automatic overlapping system 3rd embodiment of rotating speed.
Attached drawing 4 is the structural schematic diagram of the Two axle drive torque and the automatic overlapping system fourth embodiment of rotating speed.
Specific implementation mode
It is next with reference to the accompanying drawings and embodiments that the present invention will be described in detail.
About first motor 1, the definition of rotating forward, the reversion of the second motor 2, gear ring 5 and each gear：By first in attached drawing 1
1 direction of motor is observed to the right, and described just switchs to rotationally clockwise, and described is reversed to rotate in an anti-clockwise direction.
In each embodiment below, third clutch is defined as the third freewheel clutch 73 of the exclusive use in each attached drawing
Or the actuator-operated clutch 74 that is used alone or third freewheel clutch 73 and actuator-operated clutch 74 are applied in combination, about third from
The specifically used of clutch will be described in more detail in embodiments.
Embodiment 1
As shown in Fig. 1, the Two axle drive torque and the automatic overlapping system of rotating speed, including first motor 1, the second motor 2,
Further include sun gear 3, planetary gear 4, gear ring 5 and planet carrier 6, power is sent by the output of planet carrier 6 to differential mechanism after operating（Attached drawing
In be not shown）.
As shown in Fig. 1, further include fixed axis gear 81, driving gear 82, fixed axis gear 81 respectively with driving gear 82 and
Gear ring 5 engages.
As shown in Fig. 1, further include the first freewheel clutch 71 for controlling sun gear rotation, the electricity of second motor
Arbor 21 is connect with driving gear 82, and the motor shaft 11 of the first motor passes through the second freewheel clutch 72 and driving gear
82 connections.
In the present embodiment, third clutch is the third freewheel clutch 73 being used alone, as shown in Fig. 1, first
The motor shaft 11 of motor 1 is connect by third freewheel clutch 73 with sun gear 3.
When making, gear ring is widened, and sun gear 3, planetary gear 4 are located at the side in gear ring, fixed axis gear 81 and driving gear
82 are located at the other side of gear ring inner, and the motor shaft 11 of first motor, the motor shaft 21 of the second motor are located at the two of sun gear 3
Side.Installation when for convenience of engineering construction makes whole system become compacter, in the present embodiment, the motor shaft of first motor
11, the motor shaft 21 of the second motor and 3 axle center of sun gear are located on same axis.
As shown in Fig. 1, the first freewheel clutch 71, the second freewheel clutch 72 can only one directions turn according to Impact direction
Dynamic, the first freewheel clutch 71 limits sun gear 3 and can only rotate in an anti-clockwise direction, i.e., sun gear 3 can only invert.Below by each
The operation of kind operating mode illustrates to describe the action state of each clutch.
Various operating modes are described further below for attached train shown in FIG. 1.
Operating mode 1
Small torque single motor work.
When vehicle is under normally travel state, when torque value is less than preset value, the work of the second motor 2, the not work of first motor 1
Make.As shown in Fig. 1, the second motor 2 rotates forward, and the motor shaft 21 of the second motor drives driving gear 82 to rotate forward, second surmount from
Clutch 72 is in discrete state, and third clutch is the third freewheel clutch 73 being used alone, the motor shaft 11 of first motor
It is connect by third freewheel clutch 73 with sun gear 3, third freewheel clutch 73 detaches at this time, the motor shaft 11 of first motor
It remains static, the second motor 2 drives 82 rotating forwards of driving gear → 81 reversions of fixed axis gear → 5 reversions of gear ring → planetary gear 4
Reversion → sun gear 3 has rotating forward trend → first combination of freewheel clutch 71 that 3 fixations of sun gear → power is defeated by planet carrier 6
Go out.
Operating mode 2
Large torque bi-motor works.
When vehicle climb or quickly give it the gun under state, torque value more than preset value when, as shown in Fig. 1, second
Motor rotates forward, and the motor shaft 21 of the second motor drives driving gear 82 to rotate forward, and fixed axis gear 81 inverts, the reversion of gear ring 5, planetary gear
4 reversions, sun gear 3 have rotating forward to transfer toward gesture, and the first freewheel clutch 71 combines and fixes sun gear 3.First motor rotates forward, third
Freewheel clutch 73 is in discrete state, and control first motor rotating speed has the tendency that surmounting the second motor speed, second surmount from
Clutch 72 combines, and the power of first motor 1, which is transferred to driving gear 82, realizes the automatic superposition of torque, the power warp after superposition
Planet carrier 6 exports, and achievees the effect that torque is superimposed.
Operating mode 3
Vehicle under operating status accelerates.
When vehicle carries out to be accelerated motion under normally travel state, the second motor 2 rotates forward, and first motor 1 inverts.Such as
Shown in attached drawing 1, the second 2 rotating forwards of motor → 82 rotating forwards of driving gear → 81 reversions of fixed axis gear → gear ring 5 inverts.First motor 1
In reversion, the second freewheel clutch 72 is in discrete state, and third freewheel clutch 73 combines, and first motor 1 drives the sun
3 the → the first 71 separation of freewheel clutch of reversion of wheel → planetary gear 4 rotates forward.Planetary gear 4 rotates forward and the reversion of gear ring 5 accelerates planet carrier
6 rotating speed realizes the automatic superposition of rotating speed, achievees the purpose that vehicle accelerates.
As seen from the above description, using the torque and the automatic overlapping system of rotating speed, only in the case where the second motor rotates forward
The positive and negative rotation that first motor need to be controlled can be realized torque and is superimposed with the automatic of rotating speed, can effectively solve the problem that and needs in the prior art
The technical issues of clutch controller is separately provided keeps the operation of vehicle more reliable and more stable, reduces vehicle operation
In rate of breakdown.The motor shaft of the motor shaft of first motor and the second motor is arranged in the both sides of sun gear and guarantor simultaneously
Hold keeps whole system compacter in same axis, is also beneficial to installation of the system on vehicle rear axle.
The system can be widely applied on the electric vehicle of Dual-motors Driving, in the present embodiment, provide a kind of bi-motor
The electric vehicle of driving comprising first motor, the second motor, first motor, the second motor are according to torque above-mentioned and rotating speed
Automatic overlapping system is installed.
Embodiment 2
Torque provided in this embodiment and the automatic overlapping system of rotating speed are to increase car-backing function on the basis of embodiment 1.
As shown in Fig. 2, it is third freewheel clutch 73 and actuator-operated clutch 74 that third clutch is provided in the present embodiment
Be applied in combination, increase controllable clutch between the motor shaft 11 of first motor and sun gear 3 on the basis of embodiment 1
74, the 74 preferred electromagnetic clutch of clutch.
With reference to the accompanying drawings shown in 1, when the second motor 2 inverts, the action of two lines, the first route are caused：Second surmount from
11 reversions of motor shaft of 72 combinations of clutch → first motor → 73 combinations of third freewheel clutch → sun gear 3 inverts at the same speed.
Second route：Drive 82 reversions of gear → 81 rotating forwards of fixed axis gear → 5 rotating forwards of gear ring → planetary gear rotating forward → sun
3 reversion the → the first freewheel clutch 71 separation of wheel.
The result of above two route is：Due to the factor of transmission ratio, if the second motor speed is 1000r/s, when solid
When determining planet carrier, the rotating speed of sun gear 3 caused by the second route is more than 1000 r/s, and third freewheel clutch 73 is thus caused to divide
From sun gear 3 is detached with the motor shaft of first motor, and the unloaded reversion of sun gear 3 causes planet carrier unpowered output.
As shown in Fig. 2, after increasing controllable clutch 74, when reversing, 74 controlled combination of controllable clutch, first motor 1
It inverts and the rotating speed of first motor 1 is fixed as to the rotating speed consistent with the second motor 2, such as 1000r/s, first motor causes the sun
The rotating speed of wheel 3 is 1000r/s, and the second motor 2 is by driving gear 82, fixed axis gear 81, gear ring 5, planetary gear 4 to be also transmitted to too
Sun wheel 3, by differential, driving planet carrier realizes car-backing function.
When stating car-backing function in realization, it is desirable that in fixed carrier, the second motor → driving gear → fixed axis gear
The transmission ratio of → gear ring → planetary gear → sun gear is more than 1.
Embodiment 3
As shown in Fig. 3, obtained by a kind of variation of the train as embodiment 2.
As shown in Fig. 3, in the train, third clutch is the actuator-operated clutch 74 being used alone, actuator-operated clutch
74 connect the motor shaft 11 of first motor with sun gear 3, and the third freewheel clutch 73 in embodiment 2 is omitted.
With reference to the accompanying drawings shown in 3, when torque is superimposed, the rotating speed of control first motor 1, which has, surmounts becoming for 2 rotating speed of the second motor
Gesture, the second freewheel clutch 72 combine automatically, and actuator-operated clutch 74 detaches, and the output torque of two motors is superimposed upon driving gear 82
On, realize the automatic superposition of torque.When rotating speed is superimposed, control first motor 1 inverts, and the separation of the second freewheel clutch 72 is controlled
The controlled superposed of rotating speed is realized in 74 controlled combination of clutch, and the principle of rotating speed superposition is consistent with the principle of operating mode 3 in embodiment 1,
Third freewheel clutch 73 is replaced just with actuator-operated clutch 74, it is automatic and semi-automatic be superimposed effect to reach torque and rotating speed
Fruit.
When reversing, 74 controlled combination of actuator-operated clutch, the reversion of the second motor 2, the combination of the second freewheel clutch 72, the first electricity
Machine 1 inverts and the rotating speed of first motor 1 is fixed as to the rotating speed consistent with the second motor 2, such as 1000r/s, the rotating speed of sun gear 3
For 1000r/s.Second motor 2 is passed through by driving gear 82, fixed axis gear 81, gear ring 5, planetary gear 4 to be transferred to sun gear 3
Differential, driving planet carrier realize car-backing function.
Similarly, when stating car-backing function in realization, it is desirable that in fixed carrier, the second motor → driving gear → dead axle
The transmission ratio of gear → gear ring → planetary gear → sun gear is more than 1.
Embodiment 4
As shown in Fig. 4, another variation gained of the train as embodiment 2.
As shown in Fig. 4, in the train, third clutch is the group of third freewheel clutch 73 and actuator-operated clutch 74
It closes and uses, the motor shaft of first motor is connect by third freewheel clutch 73 with sun gear 3, and actuator-operated clutch 74 will drive gear
82 connect with sun gear 3.
With reference to the accompanying drawings shown in 4, when torque is superimposed, the rotating speed of control first motor 1, which has, surmounts becoming for 2 rotating speed of the second motor
Gesture, the second freewheel clutch 72 combine automatically, and actuator-operated clutch 74 detaches, and realizes the automatic superposition of torque.When rotating speed is superimposed, control
First motor 1 processed inverts, and the second freewheel clutch 72 separation, third freewheel clutch 73 combines automatically, and first motor 1 drives too
Sun wheel 3 reversions → planetary gear 4 rotates forward.Second 2 rotating forwards of motor → 82 rotating forwards of driving gear → 81 reversions of fixed axis gear → gear ring 5 is anti-
Turn.Planetary gear 4 rotates forward and the reversion of gear ring 5 drives 6 faster rotational speed of planet carrier, to make rotating speed be overlapped, reaches vehicle acceleration
Purpose.
When reversing, 74 controlled combination of controllable clutch, the second motor 2 reversion drives gear 82 to drive sun gear 3 synchronized anti-
Turn.Since the transmission ratio of the second motor → driving gear → fixed axis gear → gear ring → planetary gear → sun gear is more than 1, pass through difference
Speed, driving planet carrier realizes car-backing function, at this point, the second freewheel clutch 72 combines, first motor 1 is driven reversely to dally.
The present invention also provides a kind of electric vehicles of Dual-motors Driving comprising first motor, the second motor, the first electricity
The torque and rotating speed overlapping system that machine, the second motor are provided by any of the above-described embodiment are installed.
Claims (7)
1. a kind of dual-motor drive system, including first motor, the second motor, further include sun gear, planetary gear, gear ring and planet
Frame；
Further include fixed axis gear and driving gear；
The motor shaft of second motor is connected and fixed with driving gear；
It is characterized in that：The fixed axis gear and driving gear are located at gear ring inner, fixed axis gear respectively with gear ring and driving
Gear engages；
It further include the first freewheel clutch for controlling sun gear rotation；
Further include the second freewheel clutch, the motor shaft of first motor is connect by second freewheel clutch with driving gear；
Further include third clutch, the third clutch is third freewheel clutch or actuator-operated clutch or third overdrive clutch
The combination of device and actuator-operated clutch, the third clutch is by the motor shaft of first motor and sun gear is controlled or automatic clutch,
Or by the motor shaft of first motor and sun gear in the case of automatic clutch by sun gear and the driving controlled clutch of gear；
The automatic superposition of torque, the rotating forward of the second motor, the first electricity can be realized when the rotating forward of the second motor, first motor rotate forward
Machine can realize the controlled or automatic superposition of rotating speed when inverting.
2. a kind of dual-motor drive system according to claim 1, it is characterised in that：The motor shaft of the first motor,
Motor shaft, sun gear axle center, the gear shaft heart of second motor are located on same axis.
3. a kind of dual-motor drive system according to claim 1, it is characterised in that：The third clutch is to surmount
The combination of clutch and actuator-operated clutch is connected between the motor shaft and sun gear of first motor by third freewheel clutch,
Be additionally provided with actuator-operated clutch between the motor shaft and sun gear of first motor, realize torque and rotating speed when vehicle advances from fold
Add, car-backing function is realized by the reversion of the reversion of the second motor, first motor.
4. a kind of dual-motor drive system according to claim 1, it is characterised in that：The third clutch is controlled
The motor shaft of clutch, first motor is connect by actuator-operated clutch with sun gear, is rotated forward in the rotating forward of the second motor, first motor
The automatic superposition of Shi Shixian torques, the second motor rotates forward, first motor inverts the controlled superposed for realizing rotating speed, and the second motor is anti-
Turn, car-backing function is realized in first motor reversion.
5. a kind of dual-motor drive system according to claim 1, it is characterised in that：Third clutch is freewheel clutch
With the combination of actuator-operated clutch, wherein connected by freewheel clutch between the motor shaft and sun gear of first motor, sliding tooth
It is connected by actuator-operated clutch between wheel and sun gear, the automatic of torque is realized when the second motor rotates forward, first motor rotates forward
Superposition, the second motor rotates forward, first motor inverts the automatic superposition for realizing rotating speed, and the second motor reversal realizes car-backing function.
6. according to a kind of dual-motor drive system described in claim 3,4 or 5, it is characterised in that：In fixed carrier, the
The transmission ratio of two motors → driving gear → fixed axis gear → gear ring → planetary gear → sun gear is more than 1.
7. a kind of electric vehicle, including first motor and the second motor, first motor, the second motor are using in claim 1-6
A kind of dual-motor drive system of any one of them installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528434.8A CN106042912B (en) | 2016-07-07 | 2016-07-07 | A kind of dual-motor drive system and the electric vehicle for being configured with the system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528434.8A CN106042912B (en) | 2016-07-07 | 2016-07-07 | A kind of dual-motor drive system and the electric vehicle for being configured with the system |
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| Publication Number | Publication Date |
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| CN106042912A CN106042912A (en) | 2016-10-26 |
| CN106042912B true CN106042912B (en) | 2018-07-31 |
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| CN110886817A (en) * | 2019-12-13 | 2020-03-17 | 王佩英 | A multi-override clutch transmission module and its application |
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| CN101618685B (en) * | 2009-08-14 | 2014-10-29 | 台州市黄岩华阳机电科技有限公司 | Power output device of wheel hubs of electric vehicles |
| WO2014084827A1 (en) * | 2012-11-29 | 2014-06-05 | Mack Trucks, Inc. | Series hybrid transmission and gear-shifting method for a series hybrid transmission |
| CN203651441U (en) * | 2013-12-10 | 2014-06-18 | 郑州宇通客车股份有限公司 | Hybrid power driving system and hybrid power vehicle using hybrid power driving system |
| CN104118317A (en) * | 2014-07-14 | 2014-10-29 | 天津天海同步科技股份有限公司 | Double-motor planet gear set transmission and power assembly with same |
| CN205818934U (en) * | 2016-07-07 | 2016-12-21 | 张永峰 | A kind of dual-motor drive system and be configured with the electric automobile of this system |
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