CN109866590A - A kind of pure electric drive axle of power coupling and its control method - Google Patents
A kind of pure electric drive axle of power coupling and its control method Download PDFInfo
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- CN109866590A CN109866590A CN201910257396.0A CN201910257396A CN109866590A CN 109866590 A CN109866590 A CN 109866590A CN 201910257396 A CN201910257396 A CN 201910257396A CN 109866590 A CN109866590 A CN 109866590A
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Abstract
The present invention discloses a kind of pure electric drive axle of power coupling and its control method.The drive axle specifically includes that a central motor, two hub motors, two planetary mechanisms, five brakes, four fixed axis gear pairs.The three-element sun gear of planetary mechanism and gear ring are as two input terminals or in which an element as input terminal, and planet carrier is as output end.Central motor by two fixed axis gear pairs be coupled respectively with the sun gear of corresponding side planetary mechanism, two hub motors are coupled with the gear ring of corresponding side planetary mechanism respectively, two sides planet carrier passes through transmission shaft respectively and is coupled with the wheel rim of corresponding side as output end, power finally passes to wheel rim, driving vehicle operation by planet carrier.The organization plan can realize different operating modes according to actual road conditions demand, not only be able to satisfy vehicle to the high requirements of dynamic property, and make power source work in high efficient district, improve vehicle economy.Meanwhile reduce vehicle unsprung mass, improve vehicle ride comfort and handling stability.
Description
Technical field
The present invention relates to a kind of vehicle drive axle and its control method, more particularly to a kind of power coupling for electric vehicle are pure
Electric drive axle and its control method.
Background technique
With the constantly lasting increase of car ownership, the shortage problem of fossil energy appears in people at the moment, traditional vapour
The exhaust gas of vehicle discharge gets worse the environmental pollution of human living, and energy-saving and emission-reduction and sustainable development principles and policies make
Automobile industry changes to pure electric automobile, this is also the inexorable trend of China Automobile Industry.
Domestic most electric car enterprise is all the route for walking central motor driving at present, actually from orthodox car
What transformation came, still there are the mechanical parts such as clutch, transmission, retarder, the differential mechanism of orthodox car, so that power transmitting effect
Rate is low, and energy dissipation is serious.Since power of motor and battery capacity limit, there is automobile in enough dynamic property and continuation of the journey
Journey needs to improve the structure and its control method of drive axle.And hub motor is considered as solving drive system of electric automobile
Best solution is mounted in wheel and eliminates many transmission parts, avoids the loss in efficiency on transmission path, so that
Transmission efficiency greatly improves, and saves energy.But be placed in due to hub motor in narrow wheel, it is limited, is made by space
Obtain hub motor power limited.If the load or speed of automobile increase, hub motor can be made to be in big load even excess load
In the state of run, the normal work of hub motor can be seriously affected, cause the course continuation mileage of automobile and the service life of hub motor
It has a greatly reduced quality.Meanwhile wheel hub driving chassis structure can be such that the unsprung mass of automobile increases, and influence the ride comfort of automobile, take and relax
Adaptive and control stability.
The present invention proposes a kind of pure electric drive axle of power coupling and its control method, can pass through central motor and wheel hub
Motor works in different combinations, to adapt to the actual demand of different operating conditions；It can be by central motor and wheel hub electricity
The output torque reasonable distribution of machine, to meet the requirement of differential between driver's dynamic property or economy and two wheels.The present invention
The organization plan of proposition uses the pure electric drive axle of lower-powered hub motor and central motor power coupling, can not only expire
Sufficient vehicle can also reduce the unsprung mass of vehicle to the high requirements of dynamic property, improve automobile properties, meanwhile, may be used also
Power source work is set to improve vehicle economy in high school district with the coupling by dynamic coupling device.
Summary of the invention
The present invention makes full use of central motor and hub motor power coupling effect, passes through matching for planetary mechanism and brake
It closes and uses, can be realized different drive modes, adapt to different pavement behavior, while making motor work in high efficient district, improve
Vehicle economy.
The purpose of the present invention is achieved through the following technical solutions:
The present invention discloses a kind of pure electric drive axle of power coupling and its control method.The drive axle specifically includes that in one
Entreat motor, two hub motors, two planetary mechanisms, five brakes, four fixed axis gear pairs etc..Three elements of planetary mechanism
Middle sun gear and gear ring or in which an element are as two input terminals, and planet carrier is as output end.Central motor passes through two
Fixed axis gear pair be coupled respectively with the sun gear of corresponding side planetary mechanism, two hub motors with respectively with corresponding side planet machine
The gear ring of structure is coupled, and two sides planet carrier, which passes through transmission shaft respectively and is coupled with the wheel rim of corresponding side, is used as output end, power finally by
The planet carrier of planetary mechanism passes to transmission shaft and wheel rim, driving vehicle operation.Left side third brake caliper and left side wheels
Hub motor housing is connected, and left hand brake disk is coupled by transmission shaft with left side wheel rim；Right side third brake caliper and right side
Hub motor shell is connected, and right side brake disk is coupled by transmission shaft with right side wheel rim；Play service brake and parking braking
Effect.In the drive axle, the rotor of left side hub motor is coupled with the gear ring of left side planetary mechanism, left side second brake with
The gear ring of left side planetary mechanism is coupled, and the motion state of left side hub motor and left side planetary mechanism gear ring is controlled with this；Right side
The rotor of hub motor is coupled with the gear ring of right side planetary mechanism, and the gear ring of right side second brake and right side planetary mechanism joins
Knot controls the motion state of right side hub motor and right side planetary mechanism gear ring with this.Other first brake and with center electricity
The transmission shaft of machine is coupled, and the motion state of central motor and left and right sides sun gear is controlled with this.
The working principle of the invention:
The power of central motor 1 passes to left side planetary mechanism 5 by the first brake 2, dead axle transmission secondary 3-1 and 4-1
Sun gear 5-7, the power of left side hub motor pass to the gear ring 5-3 of left side planetary mechanism 5, central motor 1 and left side wheel hub electricity
The power of machine is exported by the planet carrier 5-5 of left side planetary mechanism 5, and power is ultimately passed to left side wheel；The power of motor 1 is entreated to pass through
First brake 2, dead axle transmission secondary 3-2 and 4-2 pass to the sun gear 5-8 of right side planetary mechanism 5, the power of right side hub motor
Pass to the gear ring 5-4 of right side planetary mechanism 5, the power of central motor 1 and right side hub motor by right side planetary mechanism 5 planet
Frame 5-6 output, power are ultimately passed to right side wheels.
Specific automobile works under which kind of operating mode to be passed through according to the current operation conditions of automobile and operator demand
Drive axle work is made in different modes to the control of brake and two kinds of power sources, it can be by central motor and wheel hub electricity
The co- controlling or individually control of machine revolving speed and torque, make motor be in optimal working condition always.
Advantages of the present invention:
(1) organization plan proposed by the present invention uses the pure electricity of lower-powered hub motor and central motor power coupling
Drive axle is not only able to satisfy vehicle to the high requirements of dynamic property, can also reduce the unsprung mass of vehicle, improve automobile
Ride comfort, riding comfort and control stability.
(2) organization plan proposed by the present invention can make power source work in height by the coupling of dynamic coupling device
Improve vehicle economy in school district.
It (3), can be by central motor and hub motor under central motor and hub motor power coupling operating mode
Output torque reasonable distribution, preferably to realize the differential function of two wheels, come meet driver's dynamic property or economy and
The requirement of differential between two wheels.
(4) central motor and hub motor work in different combinations, and different combination work has difference
Torque output and speed ratio relationship, vehicle can switch different combination work, make motor work according to actual condition needs
Make to improve vehicle economy in high efficient district.
(5) change-over switch to be worked using brake as different mode, when car load exceeds the working range of motor
When, brake torque is less than the torque capacity of motor at this time, and slipping of brake can play the work of overload protection to motor
With.
(6) present invention proposes a kind of pure electric drive axle of power coupling and its control method, and peak power output is larger, can be with
For the biggish vehicle of load, it is not limited only to general car.
Detailed description of the invention
Fig. 1 is structure of the invention schematic diagram
Fig. 2 is power transmission line figure under motor power coupling work mode
Fig. 3 is central motor operating mode power transmission line figure
Fig. 4 is power transmission line figure under two wheel hub electrical machine working modes
Fig. 5 is power transmission line figure under central motor regenerative braking operating mode
Fig. 6 is power transmission line figure under hub motor regenerative braking operating mode
Fig. 7 is 2 structure principle chart of embodiment
Fig. 8 is 3 structure principle chart of embodiment
Fig. 9 is 4 structure principle chart of embodiment
Figure 10 is 5 structure principle chart of embodiment
Figure 11 is 6 structure principle chart of embodiment
Figure 12 is the rotation schematic diagram of motor power coupling work mode lower planet mechanism
Figure 13 is the torque balance figure of K under motor power coupling work mode
Figure 14 is the revolving speed balance chart of K under central motor operating mode
Figure 15 is the torque balance figure of K under central motor operating mode
Figure 16 is the revolving speed balance chart of K under In-wheel motor driving operating mode
Figure 17 is the torque balance figure of K under In-wheel motor driving operating mode
Figure 18 is the revolving speed balance chart of the lower K of regenerative braking operating mode 1
Figure 19 is the revolving speed balance chart of K under hub motor regenerative braking operating mode
Symbol description in figure:
1 central motor；2 first brakes；3,4 fixed axis gear pair；
5 planetary mechanisms；5-1,5-2 planetary gear；5-3,5-4 gear ring；
5-5,5-6 planet carrier；5-7,5-8 sun gear；6 second brakes；
7 wheel rims；8 hub motors；8-1,8-2 hub motor rotor；
8-3,8-4 hub motor stator；9 third brakes；9-1,9-2 caliper；
9-3,9-4 brake disc；10 the 4th brakes
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings, and embodiments of the present invention are not limited thereto.
Embodiment 1
It is as shown in Figure 1 the power coupling pure electric vehicle drive axle and its structure principle chart of control method, and the present invention
Embodiment 1.
Left side: the output shaft of central motor 1 passes through the first brake 2, dead axle transmission secondary 3-1 and 4-1 and left side planet machine
The sun gear 5-7 of structure 5 is coupled, and hub motor its rotor 8-1 in left side is coupled with the gear ring 5-3 of left side planetary mechanism 5, the second braking
Device 6-1 can control the output of gear ring 5-3 and left side hub motor, and the planet carrier 5-5 of left side planetary mechanism 5 passes through left side
Transmission shaft is coupled with wheel rim 7-1, and the caliper 9-1 of left side third brake 9 is mounted on the motor casing of left side hub motor 8,
Brake disc 9-3 is connected with left side drive shafts.Wherein the first brake can control the output of central motor, second brake
6-1 can control the output of left side gear ring and hub motor, and left side third brake controls the movement of left side wheel
System.
Right side: the output shaft of central motor 1 passes through the first brake 2, dead axle transmission secondary 3-2 and 4-2 and right side planet machine
The sun gear 5-8 of structure 5 is coupled, and hub motor its rotor 8-2 in right side is coupled with the gear ring 5-4 of right side planetary mechanism 5, the second braking
Device 6-2 can control the output of gear ring 5-4 and right side hub motor, and the planet carrier 5-6 of right side planetary mechanism 5 passes through right side
Transmission shaft is coupled with wheel rim 7-2, and the caliper 9-2 of right side third brake 9 is mounted on the motor casing of right side hub motor 8,
Brake disc 9-4 is connected with right side transmission shaft.Wherein the first brake can control the output of central motor, second brake
6-2 can control the output of right side gear ring and hub motor, and right side third brake controls the movement of right side wheels
System.
It is analyzed first according to the various operating modes that the drive axle can be realized, and the power under various modes is passed
Route, torque and revolving speed is passed to be analyzed and derived.
Each parameter general symbol(s) is defined as shown in Table 1 first for convenience:
The meaning of each parameter of table 1
1, two kinds of motor power coupling work modes
Under two kinds of motor power coupling work modes, two hub motors 8 of central motor 1 and arranged on left and right sides are worked at the same time,
And three rotor rotating Vortexes, second brake 6-1,6-2 of the first brake 2 and arranged on left and right sides do not work.Left side
Power transmission process are as follows: the power of central motor 1 passes to left side planetary mechanism 5 too through two couples of fixed axis gear secondary 3-1,4-1
Sun wheel 5-7, the power of left side hub motor 8 are transmitted to gear ring 5-3, and the sun gear and gear ring of left side planetary mechanism become two power
Input terminal, planet carrier 5-5 are output end, and power passes to left side wheel rim 7-1 by planet carrier again.Right side power transmittance process are as follows: in
The power of motor 1 is entreated to pass to the sun gear 5-8 of right side planetary mechanism 5, right side wheel hub electricity through two couples of fixed axis gear secondary 3-2,4-2
The power of machine 8 is transmitted to gear ring 5-4, and the sun gear and gear ring of right side planetary mechanism become two power input terminals, and planet carrier 5-6 is defeated
Outlet, power pass to right side wheel rim 7-2 by planet carrier again.
Power transmission line is as shown in Figure 2.Derivation system exports revolving speed and torque is as follows
Under two kinds of motor power coupling work modes, second brake 6-1,6-2 of the first brake 2 and arranged on left and right sides
Do not work.
Known by Figure 12, A point in contact point is the contact point of planetary gear and gear ring.
VR@A=ωRRR (1)
VP@A=-ωPRP+RRωC (2)
VR@A=VP@A (3)
It can obtain
ωRRR=-ωPRP+RRωC (4)
The similarly contact point B point of planetary gear and sun gear
ωSRS=ωPRP+RSωC (5)
(4) (5) simultaneous obtains
ωsRS+ωRRR=(RR+RS)ωC (6)
Due to
?
ρωS=(1+ ρ) ωC-ωR (8)
By Figure 13, by lever simulation
TR=TE2 (12)
TS=K1K2TE1 (13)
T=TC=TR+TS=TE2+K1K2TE1 (14)
2, central motor operating mode
Under 1 operating mode of central motor, the first brake 2 does not work, brake 6-1,6-2 work, gear ring 5-5,5-6
It is motionless, 8 unpowered output of arranged on left and right sides hub motor.Left side power transmittance process: the power of central motor 1 is fixed through left side two
Axis transmission 3-1 and 4-1 are transmitted to the sun gear 5-7 of left side planetary mechanism 5, since gear ring 5-3 is fixed, so power is by left row
Carrier 5-5 output is eventually transferred into left side wheel rim 7-1.Right side power transmittance process: the power of central motor 1 is fixed through right side two
Axis transmission 3-2 and 4-2 are transmitted to the sun gear 5-8 of right side planetary mechanism 5, since gear ring 5-4 is fixed, so power is gone by right side
Carrier 5-6 output is eventually transferred into right side wheel rim 7-2.Power transmission line is as shown in Figure 3.By simulation lever method derivation system
Output torque and revolving speed are as follows:
Under 1 operating mode of central motor, two hub motor 8 of the left and right sides does not work, and the first brake of the left and right sides 2 is not
Work, second brake 6-1,6-2 work.
By Figure 14, by lever simulation:
By Figure 15, by lever simulation:
T=Tc=Ts(1+k)=TE1K1K2(1+K) (17)
3, In-wheel motor driving mode
Under In-wheel motor driving mode, central motor 1 does not work, the work of the first brake 2, arranged on left and right sides planet machine
Sun gear 5-7,5-8 of structure 5 are motionless, and second brake 6-1,6-2 do not work.Left side power transmittance process: left side hub motor 8
Power planetary gear 5-1 is passed to by the gear ring 5-3 of left side planetary mechanism 5, then wheel rim 7-1 is transmitted to by planet carrier 5-5 output.It is right
Side power transmission process: the power of right side hub motor 8 passes to planetary gear 5-2 by the gear ring 5-4 of right side planetary mechanism 5, then by
Planet carrier 5-6 output is transmitted to wheel rim 7-2.Power transmission line figure is as shown in Figure 4.
Under In-wheel motor driving mode, central motor 1 does not work, and 2 work of the first braking, arranged on left and right sides second is braked
Device 6-1,6-2 do not work.
By Figure 16, by lever simulation:
By Figure 17, by simulating lever method:
TR(1+k)=TCK (20)
4, regenerative braking operating mode
(1) central motor regenerative braking Working mould
Under central motor regenerative braking Working mould, braking energy only feeds back to central motor 1, and arranged on left and right sides second is made
Dynamic device 6-1,6-2 work, gear ring 5-3,5-4 are motionless, and the first brake 2 does not work.The power of left side wheel is passed to through transmission shaft
The planet carrier 5-5 of left side planetary mechanism 5, since gear ring 5-3 is motionless, so power passes 5-5 to sun gear 5-7, most by planet carrier
Central motor 1 is passed to through two, left side fixed axis gear secondary 3-1,4-1 eventually.The power of right side wheels passes to right side planet through transmission shaft
The planet carrier 5-6 of mechanism 5, since gear ring 5-4 is motionless, so power passes to sun gear 5-8 by planet carrier 5-6, finally through left side
Two fixed axis gear secondary 3-2,4-2 pass to central motor 1.Power transmission line is as shown in Figure 5.
Under central motor regenerative braking operating mode, arranged on left and right sides second brake 6-1,6-2 work, the first braking
Device 2 does not work.
By Figure 18, by lever simulation:
ns=(1+k) nc (23)
nE1=nsK2K1=K2K1(1+K)nc (24)
(2) hub motor regenerative braking operating mode
Under 8 regenerative braking operating mode of hub motor, braking energy only feeds back to arranged on left and right sides hub motor 8, and first
Brake 2 works, and sun gear 5-7,5-8 of arranged on left and right sides planetary mechanism are motionless, and second brake 6-1,6-2 do not work.Left side
The power of wheel passes to the planet carrier 5-5 of left side planetary mechanism 5 through transmission shaft, since sun gear 5-7 is motionless, so power is by going
Carrier 5-5 passes to gear ring 5-3, then passes to left side hub motor 8 by gear ring 5-3.The power of right side wheels is passed to through transmission shaft
The planet carrier 5-6 of right side planetary mechanism 5, since sun gear 5-8 is motionless, so power passes to gear ring 5-4 by planet carrier 5-6, then
Right side hub motor 8 is passed to by gear ring 5-4.Power transmission line is as shown in Figure 7.
Under 8 regenerative braking operating mode of hub motor, the work of the first brake 2, left and right sides second brake 6-1,
6-2 does not work.
By Figure 19, by lever simulation:
5, reversing mode
Reversing mode need to only change the steering of the rotor of motor, enable its reversion, that is, realize reversing, torque and revolving speed and vapour
Torque under each mode of vehicle forward travel is identical with revolving speed, with reference to above.
The torque of the states of each transmission parts of 3 system of table and power transmission line end and turn
Embodiment 2
It is as shown in Figure 7: the embodiment unlike the first embodiment: eliminate the first brake 2 in embodiment 1,
It is added to the 4th brake respectively at transmission shaft between the sun gear and fixed axis gear transmission 4 of arranged on left and right sides planetary mechanism
10.All modes of embodiment 1 may be implemented in the embodiment, and concrete operating principle is identical as example 1 as speed ratio calculation, herein
It is not repeated.
Embodiment 3
As shown in Figure 8: the embodiment eliminates the structure principle chart of the first brake 2 on the basis of embodiment 1.
This embodiment can be in addition to can not achieve In-wheel motor driving mode and hub motor regenerative braking in embodiment 1
Except mode, other modes in embodiment 1 can be realized by the mode, concrete operating principle and speed ratio calculation relationship with
Embodiment 1 is identical, is not repeated herein.
Embodiment 4
As shown in Figure 9: the embodiment eliminates arranged on left and right sides second brake 6-1,6-2 on the basis of embodiment 1
Structure principle chart.
This embodiment can be in addition to can not achieve central motor drive mode and central motor regenerative braking in embodiment 1
Except mode, other modes in embodiment 1 can be realized by the mode, concrete operating principle and speed ratio calculation relationship with
Embodiment 1 is identical, is not repeated herein.
Embodiment 5
As shown in Figure 10: the embodiment eliminates arranged on left and right sides second brake 6-1,6-2 on the basis of embodiment 2
Structure principle chart.
This embodiment can be in addition to can not achieve central motor drive mode and central motor regenerative braking in embodiment 1
Except mode, other modes in embodiment 1 can be realized by the mode, concrete operating principle and speed ratio calculation relationship with
Embodiment 1 is identical, is not repeated herein.
Embodiment 6
As shown in figure 11: the embodiment eliminates the first brake 2 on the basis of embodiment 1, second brake 6-1,
The structure principle chart of 6-2.
This embodiment can only realize two kinds of motor power coupling work modes in embodiment 1, other modes can not be real
Existing, concrete operating principle and speed ratio calculation relationship are same as Example 1, are not repeated herein.
Claims (10)
1. a kind of pure electric drive axle of power coupling and its control method, the main composition of the drive axle: central motor 1, first is made
Dynamic device 2, fixed axis gear pair 3,4, planetary mechanism 5, second brake 6, hub motor 8, third brake 9.Central motor 1 passes through
Two fixed axis gear pairs be coupled respectively with the sun gear of corresponding side planetary mechanism, the rotor of two sides hub motor with respectively with phase
The gear ring of side planetary mechanism is answered to be coupled, two sides planet carrier passes through transmission shaft respectively and is coupled with the wheel rim of corresponding side, two sides planet machine
The planet carrier of structure is coupled with corresponding side wheel rim respectively by transmission shaft.In the drive axle, left side second brake and left row
The gear ring of star mechanism is coupled, and the motion state of left side hub motor and left side planetary mechanism gear ring is controlled with this；It makes on right side second
Dynamic device is coupled with the gear ring of right side planetary mechanism, and the movement shape of right side hub motor and right side planetary mechanism gear ring is controlled with this
State.Other first brake and it is coupled with the transmission shaft of central motor, central motor and left and right sides sun gear is controlled with this
Motion state.
Main feature is as follows: the power of central motor 1 is distinguished by the first brake 2, left and right sides fixed axis gear transmission 3,4
Into sun gear 5-7,5-8 of corresponding side planetary mechanism 5；The power of left side hub motor enters row by second brake 6-1
The gear ring 5-3 of star mechanism 5, the power of right side hub motor enter the gear ring 5-4 of planetary mechanism 5 by second brake 6-2；Too
The power that sun wheel is input to the power of left side sun gear and left side hub motor is input to gear ring 5-3 is transmitted by planetary gear 5-1
Planet carrier 5-5 is given, final power passes to wheel rim 7-1 by left side drive shafts, to drive left side wheel；Sun gear is input to the right side
The power that the power and right side hub motor of side sun gear are input to gear ring 5-4 passes to planet carrier 5-6 by planetary gear 5-2,
Final power passes through right side transmission shaft and passes to wheel rim 7-2, to drive right side wheels.First brake can control central motor
The motion state of 1 and the left and right sides sun gear 5-7,5-8, second brake 6-1 control left side hub motor and left side planet machine
The gear ring 5-4's of the motion state of the gear ring 5-3 of structure, second brake 6-2 control right side hub motor and right side planetary mechanism
Motion state.Automobile work in what mode is controlled by the working condition of control power source and the working condition of brake
Make.
2. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: actual according to vehicle
Road conditions demand, by making drive axle work in different modes to brake and two kinds of power sources control.
3. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: described according to difference
Road conditions demand while select different drive modes, make power source work in height by the coupling of dynamic coupling device
Improve vehicle economy in school district.
4. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: according to the need of driver
It asks, controls central motor 1 and hub motor 8 exports the reasonable distribution of revolving speed and torque, may be implemented to meet under different road conditions and drive
The dynamic property or economy demand of the person of sailing and the demand of two wheel differentials.
5. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: the left and right side
Planetary mechanism 5 can be single planetary mechanism, be also possible to compound planetary mechanism.
6. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: first braking
Device 2, second brake 6-1,6-2 can be the brake of the other forms such as dry type, wet type or electromagnetism, or monolithic is more
The brake of piece.
7. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: first braking
Device 2, second brake 6-1,6-2, can all exist, and there may also be any one or all be not present.
8. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: first brake
Also it may be mounted between fixed axis gear pair 4 and sun gear 5-7,5-8.
9. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: the hub motor turns
Sub- 8-1,8-2 and gear ring 5-3,5-4 can be made one, can also be coupled with gear pair.
10. the pure electric drive axle of power coupling according to claim 1 and its control method, it is characterised in that: the center electricity
The type of machine and hub motor can be as the motor of the excitation modes such as permanent-magnet synchronous, Permanent magnet DC, alternating current impression.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110497799A (en) * | 2019-06-14 | 2019-11-26 | 南京航空航天大学 | A kind of automobile multi-motors drive system and method |
| CN113022227A (en) * | 2021-04-27 | 2021-06-25 | 吉林大学 | Multi-mode double-motor coupling electric drive axle |
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| CN202669458U (en) * | 2012-03-23 | 2013-01-16 | 温州大学 | Counter-rotating double-rotor motor vehicle drive axle system |
| DE202013011493U1 (en) * | 2013-12-30 | 2014-02-20 | Jan Bröcking | Drive concept for increasing drive torques on the vehicle wheels at low driving speeds |
| CN106915246A (en) * | 2015-12-25 | 2017-07-04 | 比亚迪股份有限公司 | Power-driven system and the vehicle with the power-driven system |
| CN107244377A (en) * | 2017-07-04 | 2017-10-13 | 李燊 | Electric car variable speed drive motor, wheel hub electric motor of electric vehicle and motor control method |
| CN109109566A (en) * | 2018-02-02 | 2019-01-01 | 宁功韬 | A kind of wide speed regulating range output rotational speed and torque can independent control electric drive axle |
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| CN109532462A (en) * | 2018-11-23 | 2019-03-29 | 重庆大学 | Bi-motor couples planet Traction Drive bearing type reduction electric hub |
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| CN113022227A (en) * | 2021-04-27 | 2021-06-25 | 吉林大学 | Multi-mode double-motor coupling electric drive axle |
| CN113022227B (en) * | 2021-04-27 | 2022-06-07 | 吉林大学 | Multi-mode double-motor coupling electric drive axle |
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