CN207579566U - A kind of single double-planet wheel type electric drive assembly - Google Patents
A kind of single double-planet wheel type electric drive assembly Download PDFInfo
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- CN207579566U CN207579566U CN201721414873.2U CN201721414873U CN207579566U CN 207579566 U CN207579566 U CN 207579566U CN 201721414873 U CN201721414873 U CN 201721414873U CN 207579566 U CN207579566 U CN 207579566U
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Abstract
The utility model proposes a kind of single double-planet wheel type electric drive assembly, including main drive motor, auxiliary drive motor, brake, single double-planet train, No.1 clutch, No. two clutches；Single double-planet train is made of sun gear, the first planetary gear set, the second planetary gear set, gear ring and planet carrier；The main rotor for driving motor is connected through sun gear main shaft with sun gear, and the auxiliary rotor for driving motor is connected with hollow shaft；First planetary gear set, the second planetary gear set are fixed on planet carrier；No.1 clutch and No. two clutches are provided in hollow shaft, sun gear collar bush is set in hollow shaft；It is attached or detaches through No. two clutches between sun gear main shaft and hollow shaft, be attached or detach through No.1 clutch between hollow shaft and planet carrier；Gear ring is connected with assembly output terminal；Planet carrier is braked through brake；Assembly output terminal is connected with drive axle；This product is simple and compact for structure, easy to operate and can provide a variety of different operating modes to promote drive efficiency.
Description
Technical field
The utility model is related to vehicle power field, especially a kind of single double-planet wheel type electric drive assembly.
Background technology
The pure electric automobile drive system of mainstream is carried out mainly using single motor, main reducing gear scheme by motor at present
Stepless time adjustment.This dynamical system mechanism is simple, be easy to general layout, control is easier, and manufacture cost is relatively low.But
It is driving system in the range of preventing driving motor from always working at its efficiency optimization using single motor and simple retarder
It unites less efficient.In order to improve dynamic property and economy, some double-motor power coupling driving assemblies obtain on pure electric automobile
Application is arrived.
Chinese patent application No. is 201310117747.0 discloses a kind of bi-motor multi-model coupling driving structure, by
Two groups of planet rows, two motors, two clutches and a lock device composition, by being realized to the control of clutch and lock device
The power coupling of system.The structure causes No.1 motor list to need the first of bigger when driving starting using the scheme for sharing sun gear
Beginning torque, and gearratio, less just with greater need for motor torque capacity is increased, this obviously brings the increase of motor volume and cost.
In addition, deficiency of the device there is also complicated in mechanical structure.
Chinese patent application No. is 201410584883.5 discloses a kind of double dynamical coupling driving structure, by two groups of rows
Star row, two motors, two retarders and three lock device compositions, increase retarder, compensate for No.1 motor in systems
The defects of being short of power during single driving.However the scheme for sharing gear ring is used, and coupling design is used between two gear rings,
This just makes system structure more complicated, directly results in the increase of cost, and there are certain noises.In addition, to solve three
The arrangement difficulty of a lock device, simultaneously axis design can only be used by resulting in two motors, and structure design flexibility is insufficient.
Chinese patent application No. is 201621061367.5 discloses a kind of double planet row-type electric drive assembly, the structure
It is made of two groups of planet rows, a brake, a clutch, No.1 motor list drives the startup for not needing to very big when starting and turns
Square, structure is also relatively above-mentioned simple, but the device employs double planet wheel rows of mixing structure but can only provide four kinds of operating modes, this
Sample can not preferably make motor be operated in optimum efficiency state, and double planet wheel rows of mixing structure also slightly complicated.
Invention content
The utility model proposes a kind of single double-planet wheel type electric drive assembly, simple and compact for structure, easy to operate and energy
A variety of different operating modes are provided to promote drive efficiency.
The utility model uses following technical scheme.
A kind of single double-planet wheel type electric drive assembly, for the motor and drive axle of connecting electric automobile；The electricity drives
Dynamic assembly includes main drive motor（1）, auxiliary drive motor（2）, brake（4）, single double-planet train（5）, No.1 clutch（10）、
No. two clutches（11）；Wherein, single double-planet train（5）By sun gear（9）, the first planetary gear set（8）, the second planetary gear set
（7）, gear ring（6）And planet carrier（12）Composition；Main drive motor（1）Rotor through sun gear main shaft（14）It is connected with sun gear,
The auxiliary rotor and hollow shaft for driving motor（13）It is connected；First planetary gear set（8）, the second planetary gear set（7）It is fixed on planet carrier
（12）On；Hollow shaft（13）On be provided with No.1 clutch（10）With No. two clutches（11）, sun gear collar bush is set on hollow
In axis；It is attached or detaches through No. two clutches between sun gear main shaft and hollow shaft, through one between hollow shaft and planet carrier
Number clutch is attached or detaches；Gear ring is connected with electric drive assembly output terminal；Planet carrier is braked through brake；Electricity drives
Dynamic assembly output terminal is connected with drive axle.
If NS、NR、NCThe rotating speed of sun gear, gear ring and planet carrier, gear ring and sun gear in respectively single double-planet train
Gear ratio for K, then the kinematical equation of single double-planet train is NS-KNR+(K-1)NC=0 。
When brake locking, No.1 clutch separation, No. two clutch separations, electric drive assembly works in low speed list master
Drive motor drive mode or the main drive motor braking energy recuperation mode of low speed list；
The main motor drive mode of driving of low speed list is for driving vehicle, and during this pattern, auxiliary drive motor is stopped, main drive motor
Output power be delivered to drive axle through sun gear main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring successively
Finally arrive wheel；The gearratio of electric drive assembly is K at this time；Main drive motor rotation direction is identical with assembly output terminal rotation direction；
The main motor braking energy recuperation mode that drives of low speed list recycles for vehicle energy, and during this pattern, main drive motor works
In generate mode, the inertia torque of vehicle successively through wheel, drive axle, gear ring, the second planetary gear set, the first planetary gear set,
Sun gear, sun gear main shaft drag main drive electric power generation.
When brake locking, No.1 clutch separation, when No. two clutches combine, electric drive assembly works in the double electricity of low speed
Machine torque coupling drive mode or low speed bi-motor torque coupling Brake energy recovery pattern；
Low speed bi-motor torque coupling drive mode is used for vehicle traction, during this pattern, main drive motor with auxiliary to drive motor same
When be operated under electric model, and under the action of No. two clutches combine, main drive motor becomes an entirety with auxiliary drive motor,
The output power of two motors may be superimposed on sun gear main shaft.At this point, the aerodynamic power stream transfer route of two motors is：Too
Sun wheel main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring are delivered to drive axle and finally arrive wheel；It drives at this time
Assembly is transferred to based on torque at drive axle and drives motor, auxiliary drive motor torque sum K times；It is main to drive motor and the auxiliary rotation for driving motor
To identical with assembly output terminal rotation direction；
Low speed bi-motor torque coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor
With auxiliary drive motor work in generate mode, the inertia torque of vehicle successively through wheel, drive axle, gear ring, the second planetary gear set,
First planetary gear set, sun gear, sun gear main shaft, finally in the main drive motor of sun gear main shaft shunting dragging and auxiliary drive motor rotation
Power generation.
When brake discharges, No.1 clutch combines, and when No. two clutches combine, electric drive assembly works in middling speed list master
Drive motor drive mode or middling speed bi-motor Brake energy recovery pattern；
The main motor drive mode of driving of middling speed list is for vehicle traction, and during this pattern, auxiliary drive motor is stopped, main drive motor
Power be divided into two-way；It is wherein defeated through sun gear main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring all the way
It send, another way is conveyed through sun gear main shaft, No. two clutches, No.1 clutch, planet carrier, planetary gear set, gear ring；Two-way is in tooth
Drive axle is delivered to after coupling superposition finally arrive wheel at circle；The main rotation direction for driving motor is identical with assembly output terminal rotation direction；At this time
Electric drive assembly gearratio is i3=NS/NR=1；
Middling speed bi-motor Brake energy recovery pattern recycles for vehicle energy, and during this pattern, main drive motor drives electricity with auxiliary
Machine works in generate mode, and the inertia torque of vehicle, which is divided into two-way, punishes through gear ring and flow, wherein all the way through wheel, drive axle,
Gear ring, planetary gear set, sun gear, sun gear main shaft drag main drive electric power generation；Another way is through wheel, drive axle, gear ring, planet
Wheel group, planet carrier, first clutch, hollow shaft drag auxiliary drive electric power generation.
When brake discharges, No.1 clutch combines, and when No. two clutches combine, electric drive assembly works in the double electricity of middling speed
Machine torque coupling drive mode or middling speed bi-motor torque coupling Brake energy recovery pattern；
Middling speed bi-motor torque coupling drive mode is used for vehicle traction, and during this pattern, bi-motor is worked at the same time electronic
Under pattern, and under the action of No. two clutches combine, main drive motor becomes an entirety with auxiliary drive motor, at this time bi-motor
Power is divided into two-way；It is wherein conveyed all the way through sun gear main shaft, No. two clutches, planetary gear set, gear ring, another way is through hollow
Axis, No.1 clutch, planet carrier, planetary gear set, gear ring conveying；It is last that two-way is delivered to drive axle after coupling superposition at gear ring
To wheel, the rotation direction for driving motor main at this time is identical with the output terminal rotation direction of drive assembly, and the gearratio of drive assembly is i4=NS/NR
=1；
Middling speed bi-motor torque coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor
With auxiliary drive motor work in generate mode, the inertia torque of vehicle, which is divided into two-way, punishes through gear ring and flows, wherein all the way through wheel,
Drive axle, gear ring, planetary gear set, sun gear, sun gear main shaft drag main drive electric power generation, and another way is through wheel, drive axle, tooth
Circle, planetary gear set, planet carrier, first clutch, hollow shaft drag auxiliary drive electric power generation,
When brake discharges, No.1 clutch combines, and during No. two clutch separations, electric drive assembly works in double electricity at a high speed
Machine rotating speed coupling driving pattern or high speed motor rotating speed coupling Brake energy recovery pattern；
High speed motor rotating speed coupling driving pattern is used for vehicle traction, during this pattern, main drive motor and auxiliary drive motor work
Make under electric model, the power of two motors be divided into two-way all the way based on drive the output power of motor, successively through sun gear main shaft,
Sun gear, the first planetary gear set, the second planetary gear set, gear ring are delivered to drive axle；The output power of motor is driven supplemented by another way,
Successively through hollow shaft, No.1 clutch, planet carrier, planetary gear set, gear ring；Two-way is delivered to driving after coupling superposition at gear ring
Bridge；Main drive motor and the auxiliary rotation direction for driving motor are identical with the output terminal rotation direction of drive assembly；Being transmitted to the rotating speed before drive axle is
NR=2/5NS+3/5NC ；Be equivalent to main drive motor speed 2/5 is added with the 3/5 of auxiliary drive motor speed；
High speed motor rotating speed coupling Brake energy recovery pattern is for vehicle energy recycling, during this pattern, main drive motor
With auxiliary drive motor work in generate mode, the inertia torque of vehicle at drive axle through being split into two-way；Wherein pass through successively all the way
Wheel, drive axle, gear ring, the second planetary gear set, the first planetary gear set, sun gear, the main drive motor rotation of sun gear main shaft dragging
Power generation；Another way is successively through wheel, drive axle, gear ring, planetary gear set, planet carrier, No.1 clutch, the auxiliary drive electricity of hollow shaft dragging
Machine rotary electrification.
It is main drive motor with it is auxiliary drive motor with assembly babinet（3）It is connected；It is main drive motor with it is auxiliary drive motor with axis of rotation simultaneously
It is arranged in homonymy.
Planet carrier is braked by the brake being connected on assembly babinet 3.
The system structure simple and compact of the utility model, it is easy to operate and a variety of different operating modes can be provided, it can
Meet the different traveling demand of vehicle, and motor can be made preferably to be operated in the optimum interval of efficiency, so as to greatly improve driving
The efficiency of system.
The utility model compared with prior art, has the advantage that；By controlling No.1 clutch, No. two clutches
With reference to detaching, single motor can be realized for the locking of brake and release or bi-motor participates in work, meet the various operations of vehicle
Operating mode, control are simple；System structure is further simplified using single double-planet train, reduces production cost, and
The use of dual planetary gear group so that system structure stability is more preferable；Bi-motor and the same rotating shaft of output shaft are made using hollow shaft structure
Line is arranged convenient for complete vehicle structure and alleviates system weight in this way, in addition to this also solves existing double-motor power coupling
Multiple executive components arrangement of system and control problem；System can be provided including five kinds of low speed, middling speed and high speed operating modes,
It can make more smoothing out and meeting different traveling demands for automobile enforcement.
The utility model can be widely suitable for the car, car and other types of vehicle of various pure electric vehicles.
Description of the drawings
The further details of explanation to the utility model with reference to the accompanying drawings and detailed description：
Attached drawing 1 is the schematic diagram of the utility model；
Attached drawing 2 is utility model works in the main schematic diagram for driving motor drive mode of low speed list；
Attached drawing 3 is utility model works in the schematic diagram of low speed bi-motor torque coupling drive mode；
Attached drawing 4 is utility model works in the main schematic diagram for driving motor drive mode of middling speed list；
Attached drawing 5 is utility model works in the schematic diagram of middling speed bi-motor torque coupling drive mode；
Attached drawing 6 is utility model works in the schematic diagram of high speed motor rotating speed coupling driving pattern；
In figure：The main drive motors of 1-；The auxiliary drive motors of 2-；3- assembly babinets；4- brakes；The single double-planet trains of 5-；6- teeth
Circle；The second planetary gear sets of 7-；The first planetary gear sets of 8-；9- sun gears；10- No.1 clutches；No. bis- clutches of 11-；13- is hollow
Axis；14- sun gear main shafts.
Specific embodiment
As shown in figures 1 to 6, a kind of single double-planet wheel type electric drive assembly, motor and driving for connecting electric automobile
Bridge；The electric drive assembly includes main drive motor 1, auxiliary drive motor 2, brake 4, single double-planet train 5, No.1 clutch
10th, No. two clutches 11；Wherein, single double-planet train 5 is by sun gear 9, the first planetary gear set 8, the second planetary gear set 7, tooth
Circle 6 and planet carrier 12 form；The main rotor for driving motor 1 is connected through sun gear main shaft 14 with sun gear, the auxiliary rotor for driving motor
It is connected with hollow shaft 13；First planetary gear set 8, the second planetary gear set 7 are fixed on planet carrier 12；One is provided in hollow shaft 13
Number clutch 10 and No. two clutches 11, sun gear collar bush are set in hollow shaft；Through two between sun gear main shaft and hollow shaft
Number clutch is attached or detaches, and is attached or detaches through No.1 clutch between hollow shaft and planet carrier；Gear ring 6 and electricity
Drive assembly output terminal is connected；Planet carrier 12 is braked through brake 4；Electric drive assembly output terminal is connected with drive axle.
If NS、NR、NCThe rotating speed of sun gear, gear ring and planet carrier, gear ring and sun gear in respectively single double-planet train
Gear ratio for K, then the kinematical equation of single double-planet train is NS-KNR+(K-1)NC=0 。
When brake locking, No.1 clutch separation, No. two clutch separations, electric drive assembly works in low speed list master
Drive motor drive mode or the main drive motor braking energy recuperation mode of low speed list；
The main motor drive mode of driving of low speed list is for driving vehicle, and during this pattern, auxiliary drive motor is stopped, main drive motor
Output power be delivered to drive axle through sun gear main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring successively
Finally arrive wheel；The gearratio of electric drive assembly is K at this time；Main drive motor rotation direction is identical with assembly output terminal rotation direction；
The main motor braking energy recuperation mode that drives of low speed list recycles for vehicle energy, and during this pattern, main drive motor works
In generate mode, the inertia torque of vehicle successively through wheel, drive axle, gear ring, the second planetary gear set, the first planetary gear set,
Sun gear, sun gear main shaft drag main drive electric power generation.
When brake locking, No.1 clutch separation, when No. two clutches combine, electric drive assembly works in the double electricity of low speed
Machine torque coupling drive mode or low speed bi-motor torque coupling Brake energy recovery pattern；
Low speed bi-motor torque coupling drive mode is used for vehicle traction, during this pattern, main drive motor with auxiliary to drive motor same
When be operated under electric model, and under the action of No. two clutches combine, main drive motor becomes an entirety with auxiliary drive motor,
The output power of two motors may be superimposed on sun gear main shaft.At this point, the aerodynamic power stream transfer route of two motors is：Too
Sun wheel main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring are delivered to drive axle and finally arrive wheel；It drives at this time
Assembly is transferred to based on torque at drive axle and drives motor, auxiliary drive motor torque sum K times；It is main to drive motor and the auxiliary rotation for driving motor
To identical with assembly output terminal rotation direction；
Low speed bi-motor torque coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor
With auxiliary drive motor work in generate mode, the inertia torque of vehicle successively through wheel, drive axle, gear ring, the second planetary gear set,
First planetary gear set, sun gear, sun gear main shaft, finally in the main drive motor of sun gear main shaft shunting dragging and auxiliary drive motor rotation
Power generation.
When brake discharges, No.1 clutch combines, and when No. two clutches combine, electric drive assembly works in middling speed list master
Drive motor drive mode or middling speed bi-motor Brake energy recovery pattern；
The main motor drive mode of driving of middling speed list is for vehicle traction, and during this pattern, auxiliary drive motor is stopped, main drive motor
Power be divided into two-way；It is wherein defeated through sun gear main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring all the way
It send, another way is conveyed through sun gear main shaft, No. two clutches, No.1 clutch, planet carrier, planetary gear set, gear ring；Two-way is in tooth
Drive axle is delivered to after coupling superposition finally arrive wheel at circle；The main rotation direction for driving motor is identical with assembly output terminal rotation direction；At this time
Electric drive assembly gearratio is i3=NS/NR=1；
Middling speed bi-motor Brake energy recovery pattern recycles for vehicle energy, and during this pattern, main drive motor drives electricity with auxiliary
Machine works in generate mode, and the inertia torque of vehicle, which is divided into two-way, punishes through gear ring and flow, wherein all the way through wheel, drive axle,
Gear ring, planetary gear set, sun gear, sun gear main shaft drag main drive electric power generation；Another way is through wheel, drive axle, gear ring, planet
Wheel group, planet carrier, first clutch, hollow shaft drag auxiliary drive electric power generation.
When brake discharges, No.1 clutch combines, and when No. two clutches combine, electric drive assembly works in the double electricity of middling speed
Machine torque coupling drive mode or middling speed bi-motor torque coupling Brake energy recovery pattern；
Middling speed bi-motor torque coupling drive mode is used for vehicle traction, and during this pattern, bi-motor is worked at the same time electronic
Under pattern, and under the action of No. two clutches combine, main drive motor becomes an entirety with auxiliary drive motor, at this time bi-motor
Power is divided into two-way；It is wherein conveyed all the way through sun gear main shaft, No. two clutches, planetary gear set, gear ring, another way is through hollow
Axis, No.1 clutch, planet carrier, planetary gear set, gear ring conveying；It is last that two-way is delivered to drive axle after coupling superposition at gear ring
To wheel, the rotation direction for driving motor main at this time is identical with the output terminal rotation direction of drive assembly, and the gearratio of drive assembly is i4=NS/NR
=1；
Middling speed bi-motor torque coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor
With auxiliary drive motor work in generate mode, the inertia torque of vehicle, which is divided into two-way, punishes through gear ring and flows, wherein all the way through wheel,
Drive axle, gear ring, planetary gear set, sun gear, sun gear main shaft drag main drive electric power generation, and another way is through wheel, drive axle, tooth
Circle, planetary gear set, planet carrier, first clutch, hollow shaft drag auxiliary drive electric power generation,
When brake discharges, No.1 clutch combines, and during No. two clutch separations, electric drive assembly works in double electricity at a high speed
Machine rotating speed coupling driving pattern or high speed motor rotating speed coupling Brake energy recovery pattern；
High speed motor rotating speed coupling driving pattern is used for vehicle traction, during this pattern, main drive motor and auxiliary drive motor work
Make under electric model, the power of two motors be divided into two-way all the way based on drive the output power of motor, successively through sun gear main shaft,
Sun gear, the first planetary gear set, the second planetary gear set, gear ring are delivered to drive axle；The output power of motor is driven supplemented by another way,
Successively through hollow shaft, No.1 clutch, planet carrier, planetary gear set, gear ring；Two-way is delivered to driving after coupling superposition at gear ring
Bridge；Main drive motor and the auxiliary rotation direction for driving motor are identical with the output terminal rotation direction of drive assembly；Being transmitted to the rotating speed before drive axle is
NR=2/5NS+3/5NC ；Be equivalent to main drive motor speed 2/5 is added with the 3/5 of auxiliary drive motor speed；
High speed motor rotating speed coupling Brake energy recovery pattern is for vehicle energy recycling, during this pattern, main drive motor
With auxiliary drive motor work in generate mode, the inertia torque of vehicle at drive axle through being split into two-way；Wherein pass through successively all the way
Wheel, drive axle, gear ring, the second planetary gear set, the first planetary gear set, sun gear, the main drive motor rotation of sun gear main shaft dragging
Power generation；Another way is successively through wheel, drive axle, gear ring, planetary gear set, planet carrier, No.1 clutch, the auxiliary drive electricity of hollow shaft dragging
Machine rotary electrification.
Main drive motor is connected with auxiliary drive motor with assembly babinet 3；Main drive motor is with auxiliary drive motor with axis of rotation and cloth
It puts in homonymy.
Planet carrier is braked by the brake being connected on assembly babinet 3.
In this example, it is main drive motor, it is auxiliary drive motor be connected with energy storage device, with store in generate mode power generation energy.
In this example, friction clutch can be used in No.1 clutch, No. two clutches.
In this example, by changing main drive motor, the auxiliary state for driving motor, No.1 clutch, No. two clutches and brake,
Motivation package system can realize a variety of different operating modes, such as following table；
| Pattern | Main drive motor | Auxiliary drive motor | No.1 clutch | No. two clutches | Brake |
| The main drive electrical machine working mode of low speed list | 1 | 0 | 0 | 0 | 1 |
| Low speed bi-motor torque coupling operating mode | 1 | 1 | 0 | 1 | 1 |
| The main drive motor drive mode of middling speed list | 1 | 0 | 1 | 1 | 0 |
| Middling speed bi-motor Brake energy recovery pattern | 1 | 1 | 1 | 1 | |
| Middling speed bi-motor torque coupling operating mode | 1 | 1 | 1 | 1 | 0 |
| High speed motor rotating speed coupling work mode | 1 | 1 | 1 | 0 | 0 |
In table：The unlatching of " 1 " expression motor or brake, clutch bonding state, the closing of " 0 " expression motor or brake,
Clutch release conditions.
Embodiment 1：In the above embodiment, it is preferable that it can be engaged between sun gear and gear ring by planetary gear set
Mode connects.
Claims (9)
1. a kind of single double-planet wheel type electric drive assembly, for the motor and drive axle of connecting electric automobile；It is characterized in that：
The electric drive assembly includes main drive motor（1）, auxiliary drive motor（2）, brake（4）, single double-planet train（5）, No.1 from
Clutch（10）, No. two clutches（11）；Wherein, single double-planet train（5）By sun gear（9）, the first planetary gear set（8）,
Two planetary gear sets（7）, gear ring（6）And planet carrier（12）Composition；Main drive motor（1）Rotor through sun gear main shaft（14）With too
Sun wheel is connected, the auxiliary rotor and hollow shaft for driving motor（13）It is connected；First planetary gear set（8）, the second planetary gear set（7）It is fixed on
Planet carrier（12）On；Hollow shaft（13）On be provided with No.1 clutch（10）With No. two clutches（11）, sun gear main shaft is arranged
In in hollow shaft；Be attached or detach through No. two clutches between sun gear main shaft and hollow shaft, hollow shaft and planet carrier it
Between be attached or detach through No.1 clutch；Gear ring is connected with electric drive assembly output terminal；Planet carrier is through brake system
It is dynamic；Electric drive assembly output terminal is connected with drive axle.
2. a kind of single double-planet wheel type electric drive assembly according to claim 1, it is characterised in that：If NS、NR、NCPoint
Not Wei in single double-planet train sun gear, gear ring and planet carrier rotating speed, the gear ratio of gear ring and sun gear is K, then single
The kinematical equation of double-planet train is NS-KNR+(K-1)NC=0 。
3. a kind of single double-planet wheel type electric drive assembly according to claim 2, it is characterised in that：Work as brake locks
Only, when No.1 clutch separation, No. two clutch separations, electric drive assembly works in the main drive motor drive mode or low of low speed list
Fast single main drive motor braking energy recuperation mode；
The main motor drive mode of driving of low speed list is for driving vehicle, and during this pattern, auxiliary drive motor is stopped, main to drive the defeated of motor
Go out power successively through sun gear main shaft, sun gear, the first planetary gear set, the second planetary gear set, that gear ring is delivered to drive axle is last
To wheel；The gearratio of electric drive assembly is K at this time；Main drive motor rotation direction is identical with assembly output terminal rotation direction；
The main motor braking energy recuperation mode that drives of low speed list recycles for vehicle energy, and during this pattern, the main motor that drives is operated in hair
Under power mode, the inertia torque of vehicle is successively through wheel, drive axle, gear ring, the second planetary gear set, the first planetary gear set, the sun
Wheel, sun gear main shaft drag main drive electric power generation.
4. a kind of single double-planet wheel type electric drive assembly according to claim 2, it is characterised in that：Work as brake locks
Only, No.1 clutch separation, when No. two clutches combine, electric drive assembly works in low speed bi-motor torque coupling drive mode
Or low speed bi-motor torque coupling Brake energy recovery pattern；
Low speed bi-motor torque coupling drive mode is used for vehicle traction, during this pattern, main drive motor and auxiliary drive motor work simultaneously
Make under electric model, and under the action of No. two clutches combine, main drive motor and auxiliary drive motor become an entirety, two
The output power of motor may be superimposed on sun gear main shaft；
At this point, the aerodynamic power stream transfer route of two motors is：Sun gear main shaft, sun gear, the first planetary gear set, the second row
Star-wheel group, gear ring are delivered to drive axle and finally arrive wheel；It is main to drive motor and the auxiliary rotation direction for driving motor and assembly output terminal rotation direction phase
Together；
Low speed bi-motor torque coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor with it is auxiliary
Drive motor work in generate mode, the inertia torque of vehicle is successively through wheel, drive axle, gear ring, the second planetary gear set, first
Planetary gear set, sun gear, sun gear main shaft are finally sent out in the main drive motor of sun gear main shaft shunting dragging and auxiliary drive motor rotation
Electricity.
5. a kind of single double-planet wheel type electric drive assembly according to claim 2, it is characterised in that：When brake is released
Put, No.1 clutch combines, when No. two clutches combine, electric drive assembly work in middling speed list it is main drive motor drive mode or in
Fast bi-motor Brake energy recovery pattern；
The main motor drive mode of driving of middling speed list is for vehicle traction, and during this pattern, auxiliary drive motor is stopped, main to drive the dynamic of motor
Power is divided into two-way；It is wherein conveyed all the way through sun gear main shaft, sun gear, the first planetary gear set, the second planetary gear set, gear ring, separately
It is conveyed all the way through sun gear main shaft, No. two clutches, No.1 clutch, planet carrier, planetary gear set, gear ring；Two-way is at gear ring
Drive axle, which is delivered to, after coupling superposition finally arrives wheel；The main rotation direction for driving motor is identical with assembly output terminal rotation direction；
Middling speed bi-motor Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor and auxiliary drive motor work
Make in generate mode, the inertia torque of vehicle, which is divided into two-way, punishes through gear ring and flows, wherein all the way through wheel, drive axle, gear ring,
Planetary gear set, sun gear, sun gear main shaft drag main drive electric power generation；Another way through wheel, drive axle, gear ring, planetary gear set,
Planet carrier, first clutch, hollow shaft drag auxiliary drive electric power generation.
6. a kind of single double-planet wheel type electric drive assembly according to claim 2, it is characterised in that：When brake is released
It puts, No.1 clutch combines, and when No. two clutches combine, electric drive assembly works in middling speed bi-motor torque coupling drive mode
Or middling speed bi-motor torque coupling Brake energy recovery pattern；
Middling speed bi-motor torque coupling drive mode is used for vehicle traction, and during this pattern, bi-motor is worked at the same time in electric model
Under, and under the action of No. two clutches combine, main drive motor becomes an entirety with auxiliary drive motor, at this time the power of bi-motor
It is divided into two-way；It is wherein conveyed all the way through sun gear main shaft, No. two clutches, planetary gear set, gear ring, another way is through hollow shaft, one
Number clutch, planet carrier, planetary gear set, gear ring conveying；Two-way is delivered to drive axle after coupling superposition at gear ring and finally arrives vehicle
Wheel, the rotation direction for driving motor main at this time are identical with the output terminal rotation direction of drive assembly；
Middling speed bi-motor torque coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, main drive motor with it is auxiliary
Drive motor work in generate mode, the inertia torque of vehicle is divided into two-way and punishes stream through gear ring, wherein all the way through wheel, driving
Bridge, gear ring, planetary gear set, sun gear, sun gear main shaft drag main drive electric power generation, another way through wheel, drive axle, gear ring,
Planetary gear set, planet carrier, first clutch, hollow shaft drag auxiliary drive electric power generation.
7. a kind of single double-planet wheel type electric drive assembly according to claim 2, it is characterised in that：When brake is released
It puts, No.1 clutch combines, and during No. two clutch separations, electric drive assembly works in high speed motor rotating speed coupling driving pattern
Or high speed motor rotating speed coupling Brake energy recovery pattern；
High speed motor rotating speed coupling driving pattern is used for vehicle traction, and during this pattern, main drive motor is operated in the auxiliary motor that drives
Under electric model, the power of two motors be divided into two-way all the way based on drive the output power of motor, successively through sun gear main shaft, the sun
Wheel, the first planetary gear set, the second planetary gear set, gear ring are delivered to drive axle；The output power of motor is driven supplemented by another way, successively
Through hollow shaft, No.1 clutch, planet carrier, planetary gear set, gear ring；Two-way is delivered to drive axle after coupling superposition at gear ring；
Main drive motor and the auxiliary rotation direction for driving motor are identical with the output terminal rotation direction of drive assembly；
High speed motor rotating speed coupling Brake energy recovery pattern recycles for vehicle energy, during this pattern, it is main drive motor with it is auxiliary
Drive motor work in generate mode, the inertia torque of vehicle at drive axle through being split into two-way；Wherein all the way successively through wheel,
Drive axle, gear ring, the second planetary gear set, the first planetary gear set, sun gear, the main drive motor rotary electrification of sun gear main shaft dragging；
Another way is successively through wheel, drive axle, gear ring, planetary gear set, planet carrier, No.1 clutch, the auxiliary drive motor rotation of hollow shaft dragging
Forwarding electricity.
8. a kind of single double-planet wheel type electric drive assembly according to claim 1, it is characterised in that：It is main drive motor with it is auxiliary
Drive motor with assembly babinet（3）It is connected；Main drive motor with axis of rotation and is arranged in homonymy with auxiliary drive motor.
9. a kind of single double-planet wheel type electric drive assembly according to claim 1, it is characterised in that：Planet carrier is by being connected
In assembly babinet（3）On brake braked.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216534A (en) * | 2018-11-23 | 2020-06-02 | 郑州宇通客车股份有限公司 | Pure electric double-motor driving system and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216534A (en) * | 2018-11-23 | 2020-06-02 | 郑州宇通客车股份有限公司 | Pure electric double-motor driving system and vehicle |
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