CN106965660A - A kind of bi-motor coupling driving bridge with torque fixed direction allocation function - Google Patents
A kind of bi-motor coupling driving bridge with torque fixed direction allocation function Download PDFInfo
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- CN106965660A CN106965660A CN201710266538.0A CN201710266538A CN106965660A CN 106965660 A CN106965660 A CN 106965660A CN 201710266538 A CN201710266538 A CN 201710266538A CN 106965660 A CN106965660 A CN 106965660A
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- gear
- clutch
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- sun gear
- planet carrier
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
-
- 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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention discloses a kind of bi-motor coupling driving bridge with torque fixed direction allocation function, including：Main driving mechanism；Spur gear differential mechanism；TV controls drive mechanism；First single epicyclic train, the first sun gear is rotatably supported on the first semiaxis, and the first gear ring controls the output end of drive mechanism to be connected with TV；Second single epicyclic train, the second gear ring is fixed on Driving axle housing, and the second sun gear is fixedly connected with the first sun gear；3rd single epicyclic train, the 3rd sun gear is fixedly connected with differential casing, and the 3rd gear ring is fixedly connected with the second planet carrier；First clutch and second clutch, separate or engage with the first semiaxis and Driving axle housing for making the first planet carrier；3rd clutch and the 4th clutch, separate or engage with the first semiaxis and Driving axle housing for making the third line carrier；5th clutch and the 6th clutch, separate or engage with power transmission cover and differential casing for making the 6th planet carrier.
Description
Technical field
The invention belongs to electric automobile transmission field, more particularly to a kind of bi-motor coupling with torque fixed direction allocation function
Close drive axle.
Background technology
Due to environmental pollution, increasingly serious the problems such as energy crisis, the automobile of development energy-conserving and environment-protective is got in the world
Paid attention to come more countries.Wherein electric automobile, as a kind of automobile of almost zero-emission, becomes the new lover of motor-dom,
Developed rapidly in recent years.Electric automobile is even more due to itself inherent advantages, with great development potentiality.
At this stage, due to the technical bottleneck such as the motor radiating of the electric automobile of In-wheel motor driving is poor, unsprung mass is excessive
Problem and to solve, power assembly that electric automobile is typically constituted using single motor and drive axle or by single motor, speed change
The power assembly of device and drive axle composition drives the vehicle to travel.Therefore, contain mostly in the power assembly of existing electric automobile
Drive axle.
Generally, the drive axle in electric automobile is similar with the drive axle in traditional combustion engine automobile, only serves deceleration and increases torsion
Effect, the torque of motor amplification is delivered on wheel and drives running car.Therefore, because conventional carrier in drive axle
" differential not poor turn round " principle, driving torque is averaged distribution to left and right sides wheel.So adhere to unequal feelings on road surface
Traction can not be just utilized under condition well, or even easily causes in low attachment side the unstable period such as trackslip of wheel,
The adhesive ability of driving wheel can not be played.Meanwhile, in the car during tempo turn, from dAlembert principle, the load of automobile
Horizontal transfer can occur for lotus, now, and automobile inner side load reduces, outer side load increase, therefore the attachment characteristic of inner side is deteriorated, and drives
Dynamic bridge may make inboard wheel generation trackslip if still decile torque, automobile unstability.Therefore, automobile need to reduce inboard wheel and turn
Square, increases outboard wheels torque, can so increase the side force nargin of inboard wheel, prevent wheel slip, while can be right
Vehicle produces an additional yaw moment, contributes to turn inside diameter, improves the turning mobility and limit turning energy of vehicle
Power.At present, the technology is mainly in the form of torque fixed direction allocation differential mechanism on some high-end traditional combustion engine automobiles
Using such as super four-wheel drive system (SH-AWD) of Honda Company's exploitation and the super active yaw control system of Mitsubishi exploitation
(SAYC) etc., these torque fixed direction allocation differential mechanisms substantially increase the cornering ability and limit cornering ability of vehicle, but turn
Square fixed direction allocation technology does not have pratical and feasible application but on electric automobile.
Further, since power assembly that electric automobile is typically constituted using single motor and drive axle or by single motor,
The power assembly of speed changer and drive axle composition drives vehicle to travel, to meet the various complicated driving cycles of automobile, must
Ask the single motor of electric automobile to possess higher stand-by power, then certainly existed in most driving cycles similar
" low load with strong power " phenomenon of traditional combustion engine automobile, i.e., the problem of drive efficiency is not very high.In order to improve single motor
The drive efficiency of electric automobile is driven, the design philosophy of hybrid power automobile power assembly can be used for reference using two motors
The secondary driving traveling of one master one, main motor provides constant power output, with auxiliary-motor come " peak load shifting ", regulation main motor workspace
Between, improve vehicle drive efficiency.
Therefore, in order to which torque fixed direction allocation technology is applied in electric automobile, the turning mobility of electric automobile is improved
And Driving, and Drive Efficiency of Electric Vehicle is improved by the technical advantage of bi-motor coupling driving, the present invention proposes one
Plant the bi-motor coupling driving bridge with torque fixed direction allocation function.
The content of the invention
It is an object of the invention to propose a kind of bi-motor coupling driving bridge with torque fixed direction allocation function, solve first
In conventional ADS driving of having determined bridge the drawbacks of differential mechanism " differential is not poor to be turned round ", on the premise of total zigzag tread patterns torque is not changed, make
Automobile total driving torque can orient be assigned to left and right sides wheel.Secondly, be integrated with drive axle main drive motor,
TV controlled motors and travelling gear, integrate driving and transmission, and structure is compacter.
When drive axle is distributed without torque, TV controlled motors also act as the work of assist motor under torque coupling pattern
With with main drive motor torque coupling, running car is driven jointly.
When drive axle is distributed without torque, TV controlled motors also act as the work of buncher under rotating speed CGCM
With being coupled with main drive motor rotating speed, regulation main drive motor rotary speed working is interval, to obtain higher drive efficiency.
To achieve the above object, adopt the following technical scheme that：
A kind of bi-motor coupling driving bridge with torque fixed direction allocation function, it is characterised in that including：
Main driving mechanism, it is arranged on spur gear differential mechanism side, for output driving torque, driving vehicle traveling；
TV controls drive mechanism, and it is arranged on the opposite side of the spur gear differential mechanism, for output control power；
First single epicyclic train, it includes the first sun gear, the first planetary gear, the first planet carrier and the first tooth
Circle, first sun gear is rotatably supported on the first semiaxis, and first gear ring controls the output end of drive mechanism with TV
Connection；
Second single epicyclic train, it includes the second sun gear, the second planetary gear, the second planet carrier and the second tooth
Circle, second gear ring is fixed on Driving axle housing, and second sun gear is fixedly and coaxially connected with the first sun gear；
3rd single epicyclic train, it includes the 3rd sun gear, the third line star-wheel, the third line carrier and the 3rd tooth
Circle, the 3rd sun gear is fixedly connected with differential casing, and the 3rd gear ring is fixedly connected with the second planet carrier；
First clutch, it is connected with the first semiaxis and the first planet carrier respectively, so that the first semiaxis and the first planet carrier
Separation is engaged；
3rd clutch, it is connected with the first semiaxis and the third line carrier respectively, so that the first semiaxis and the third line carrier
Separation is engaged；
Wherein, the first single epicyclic train and the second single epicyclic train have identical characteristic parameter.
Preferably, in addition to：
Second clutch, it is connected with the first planet carrier and Driving axle housing respectively, so that the first planet carrier and drive axle
Housing is separated or engaged；
4th clutch, it is connected with the third line carrier and Driving axle housing respectively, so that the third line carrier and drive axle
Housing is separated or engaged.
Preferably, in addition to：
Power transmission cover, it is hollow cylinder Flange-shaped Parts, accommodating spur gear differential mechanism, its one end and the third line carrier spiral shell in it
Bolt is fixedly connected, to facilitate spur gear differential mechanism to mount and dismount.
Preferably, in addition to：
5th clutch, it is connected with power transmission cover and main driving mechanism output end respectively, so that power transmission cover and main driving machine
Structure output end is separated or engaged；
6th clutch, it is connected with main driving mechanism output end and differential casing respectively, so that main driving mechanism is defeated
Go out end to separate or engage with differential casing.
The TV controls drive mechanism includes TV controlled motors and TV reducing gears；
The TV controlled motors have hollow output shaft, and first semiaxis is rotatably supported at the hollow output
Axle, and passed from hollow output shaft.
Preferably, the TV reducing gears include：
4th single epicyclic train, it includes the 4th sun gear, fourth line star-wheel, fourth line carrier and the 4th tooth
Circle, the 4th sun gear is fixedly connected with hollow output shaft, and the 4th gear ring is fixed on Driving axle housing；
5th single epicyclic train, it includes the 5th sun gear, fifth line star-wheel, fifth line carrier and the 5th tooth
Circle, the 5th sun gear is fixedly connected with fourth line carrier, and the 5th gear ring is fixed on driving axle housing, the fifth line
Carrier is fixedly connected with the first gear ring.
Preferably, the main driving mechanism includes main drive motor and main gear reducer structure.
Preferably, the main drive motor has hollow output shaft, and the second semiaxis is rotatably supported at described hollow
Output shaft, and passed from hollow output shaft.
Preferably, the main gear reducer structure includes：
7th single epicyclic train, it includes the 7th sun gear, the 7th planetary gear, the 7th planet carrier and the 7th tooth
Circle, the 7th sun gear is fixedly connected with main drive motor output shaft, and the 7th gear ring is fixed on Driving axle housing；
6th single epicyclic train, it includes the 6th sun gear, the 6th planetary gear, the 6th planet carrier and the 6th tooth
Circle, the 6th sun gear is fixedly connected with the 7th planet carrier, and the 6th gear ring is fixed on Driving axle housing, and the described 6th
Planet carrier is fixedly connected with the 5th clutch and the 6th clutch.
A kind of bi-motor coupling driving bridge with torque fixed direction allocation function, it is characterised in that including：
Main driving mechanism, it is arranged on spur gear differential mechanism side, for output driving torque, driving vehicle traveling；
TV controls drive mechanism, and it is arranged on the opposite side of the spur gear differential mechanism, for output control power；
First single double pinions system, it includes the first sun gear, the first planetary gear, the first planet carrier and first
Gear ring, first sun gear is rotatably supported on the first semiaxis, and first gear ring controls the output of drive mechanism with TV
End connection；
Second single double pinions system, it includes the second sun gear, the second planetary gear, the second planet carrier and second
Gear ring, second gear ring is fixed on Driving axle housing, and second sun gear is fixedly and coaxially connected with the first sun gear；
3rd single epicyclic train, it includes the 3rd sun gear, the third line star-wheel, the third line carrier and the 3rd tooth
Circle, the 3rd sun gear is fixedly connected with differential casing, and the 3rd gear ring is fixedly connected with the second planet carrier；
First clutch, it is connected with the first semiaxis and the first planet carrier respectively, so that the first semiaxis and the first planet carrier
Separation is engaged；
3rd clutch, it is connected with the first semiaxis and the third line carrier respectively, so that the first semiaxis and the third line carrier
Separation is engaged；
Second clutch, it is connected with the first planet carrier and Driving axle housing respectively, so that the first planet carrier and drive axle
Housing is separated or engaged；
4th clutch, it is connected with the third line carrier and Driving axle housing respectively, so that the third line carrier and drive axle
Housing is separated or engaged.
Power transmission cover, it is hollow cylinder Flange-shaped Parts, accommodating spur gear differential mechanism, its one end and the third line carrier spiral shell in it
Bolt is fixedly connected, to facilitate spur gear differential mechanism to mount and dismount.
5th clutch, it is connected with power transmission cover and main driving mechanism output end respectively, so that power transmission cover and main driving machine
Structure output end is separated or engaged.
6th clutch, it is connected with main driving mechanism output end and differential casing respectively, so that main driving mechanism is defeated
Go out end to separate or engage with differential casing.
Wherein, the first single double pinions system has identical feature ginseng with the second single double pinions system
Number.
The beneficial effects of the invention are as follows：
1st, the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function, solves conventional ADS driving bridge
The drawbacks of middle differential mechanism " differential is not poor to be turned round ", it is possible to achieve on the premise of total zigzag tread patterns torque is not changed, arbitrarily will
Driving torque fixed direction allocation improves the turning mobility and Driving of vehicle to left and right sides wheel.
2nd, master is integrated with the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function, drive axle
Motor, TV controlled motors and conventional gears, integrate driving and transmission, and main drive motor and TV controlled motors are coaxial
Arrangement, structure is compacter, and space availability ratio is high.
3rd, the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function, most of quality belongs to spring
Mounted mass, ride comfort influence is small during on running car.
4th, the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function, TV controlled motors are not being entered
Row torque is also used as assist motor when distributing, and drives running car jointly with main drive motor torque coupling, improves vapour
The dynamic property of car, meets special operation condition significant power demand, and the utilization rate of TV controlled motors is added in addition, improves total driving effect
Rate.
5th, the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function, TV controlled motors are not being entered
Row torque is also used as buncher when distributing, and is coupled with main drive motor rotating speed, is remaining high at it at main motor rotating speed
Efficiency realizes variable speed, driving vehicle variable speed traveling while interval.
Brief description of the drawings
Fig. 1 is that bi-motor coupling driving bridge embodiment one structure of the present invention with torque fixed direction allocation function is shown
It is intended to.
Fig. 2 is the spur gear differential mechanism of the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function
Structural representation.
Fig. 3 is that bi-motor coupling driving bridge embodiment two structure of the present invention with torque fixed direction allocation function is shown
It is intended to.
Fig. 4 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in straight trip or positive constant
Structure diagram when speed is turned.
Fig. 5 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in straight trip or positive constant
Torque when speed is turned flows to schematic diagram.
Fig. 6 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in torque fixed direction allocation
Structure diagram under pattern.
Fig. 7 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in torque fixed direction allocation
Under pattern, torque when automobile turns left flows to schematic diagram.
Fig. 8 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in torque fixed direction allocation
Under pattern, torque when automobile is turned right flows to schematic diagram.
Fig. 9 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in torque coupling pattern
Under structure diagram.
Figure 10 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in torque coupling mould
Torque under formula flows to schematic diagram.
Figure 11 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in rotating speed coupled mode
Structure diagram under formula.
Figure 12 is the bi-motor coupling driving bridge of the present invention with torque fixed direction allocation function in rotating speed coupled mode
Power flow direction schematic diagram under formula.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
Embodiment one
As shown in figure 1, the invention provides a kind of bi-motor coupling driving bridge with torque fixed direction allocation function, mainly
By torque fixed direction allocation device 2000, spur gear differential mechanism 1400, main drive motor reducing gear 1500 and main drive motor 1002
Constitute.
In the present embodiment, the torque fixed direction allocation device 2000 be located at drive axle on the left of (also can and main drive motor
1002 reversing of position, are arranged on the right side of drive axle), mainly by TV controlled motors 1001, TV reducing gears 1100, double-planet
Arrange TV coupling mechanisms 1200, single planetary row differential mechanism coupling mechanism 1300, first clutch 1, second clutch 2, the 3rd clutch
The clutch 4 of device 3 and the 4th is constituted.
The TV controlled motors 1001 are a cartridge type inner rotor motors, connect the first semiaxis 1402 of left side wheel
Passed from its hollow rotor shafts endoporus, cartridge type internal rotor is connected with the spline of sun gear 1014 of fourth planet train 1010,
The output torque of TV controlled motors 1001 is inputted to fourth planet train 1010.The TV controlled motors 1001 pass through bearing branch
Support is on the first semiaxis 1402, and its stator and its housing are fixed with driving axle housing.
The TV reducing gears 1100 mainly include fourth planet train 1010 and fifth line star wheel series 1020.Described 4th
Planetary gear train 1010 includes sun gear 1014, the planetary gear 1012 of three circumference uniform distributions, planet carrier 1013 and is fixed on driving
Ring gear 1011 on axle housing.Wherein sun gear 1014 is connected with the cartridge type internal rotor spline of TV controlled motors 1001, OK
Carrier 1013 and the sun gear 1024 of fifth line star wheel series 1020 are integrated.The fifth line star wheel series 1020 include sun gear
1024th, the planetary gear 1022 of three circumference uniform distributions, planet carrier 1023 and the ring gear 1021 being fixed on driving axle housing.Wherein
Sun gear 1024 by bearings on the first semiaxis 1402, the ring gear of the planetary gear train 1030 of planet carrier 1023 and first
1031 are integrated.
Preferably TV reducing gears 1100 can by single planetary gear train, multiple rows of planetary gear train or other forms reductor
Structure is constituted, therefore the form of conversion reducing gear 1100, even cancellation TV reducing gears are not regarded as the innovation to the present invention.
The double planet wheel rows of mixing TV coupling mechanisms 1200 mainly include the first planetary gear train 1030, the second planetary gear train 1040,
The planet row characteristic parameter of first clutch 1 and second clutch 2, the first planetary gear train 1030 and the second planetary gear train 1040 must
Must be identical, the type of planet row must be consistent.First planetary gear train 1030 includes sun gear 1034, three circumference uniform distributions
Planetary gear 1032, planet carrier 1033, ring gear 1031, clutch plate 1035.Wherein ring gear 1031 and fifth line star wheel series 1020
Planet carrier 1023 be integrated, sun gear 1034 is integrated with the sun gear 1044 in the second planetary gear train 1040, passes through bearing
It is supported on the first semiaxis 1402.Clutch plate 1035 is connected with the spline of the first semiaxis 1402, and the left end of planet carrier 1033 passes through first
Clutch 1 is connected with clutch plate 1035.When the first clutch 1 is engaged, planet carrier 1033 is connected with clutch plate 1035, and first
Semiaxis 1402 and the constant speed rotation of planet carrier 1033；When the first clutch 1 disconnects, planet carrier 1033 disconnects with clutch plate 1035
Connection, the first semiaxis 1402 and each independent rotation of planet carrier 1033.The right-hand member of planet carrier 1033 passes through second clutch 2 and driving
Axle housing body is connected.When the second clutch 2 is engaged, planet carrier 1033 is fixed on Driving axle housing；The second clutch 2
During disconnection, planet carrier 1033 can rotate relative to Driving axle housing.Second planetary gear train 1040 includes sun gear 1044, three
Planetary gear 1042, planet carrier 1043 and the ring gear 1041 being fixed on driving axle housing of individual circumference uniform distribution.Wherein planet carrier
1043 and the ring gear 1051 of third planet train 1050 be integrated, the sun in the planetary gear train 1030 of sun gear 1044 and first
Wheel 1034 is integrated, by bearings on the first semiaxis 1402.
It should be noted that changing first clutch 1, the clutch species of second clutch 2 or juncture, not
It is considered as the innovation to the present invention.
The single planetary row differential mechanism coupling mechanism 1300 is main by third planet train 1050, the 3rd clutch the 3, the 4th
Clutch 4 and power transmission cover 7 are constituted.The third planet train 1050 be single planetary bevel gear planet row, including sun gear 1054, three
Planetary gear 1052, planet carrier 1053, the ring gear 1051 of circumference uniform distribution, and clutch plate 1055.Wherein sun gear 1054 with it is poor
Fast device shell 1401 is integrated, and the planet carrier 1043 of ring gear 1051 and the second planetary gear train 1040 is integrated, and passes through bearing branch
Support on the first semiaxis 1402, clutch plate 1055 is connected with the spline of the first semiaxis 1402, the right-hand member of planet carrier 1053 by the 3rd from
Clutch 3 is connected with clutch plate 1055.During the 3rd clutch 3 engagement, planet carrier 1053 is connected with clutch plate 1055, and the first half
Axle 1402 and the constant speed rotation of planet carrier 1053；When 3rd clutch 3 disconnects, planet carrier 1053 disconnects with clutch plate 1055 to be connected
Connect, the first semiaxis 1402 and each independent rotation of planet carrier 1053.The left end of planet carrier 1053 passes through the 4th clutch 4 and drive axle
Housing is connected.During the 4th clutch 4 engagement, planet carrier 1053 is fixed on Driving axle housing；4th clutch 4 breaks
When opening, planet carrier 1053 can rotate relative to Driving axle housing.Described power transmission cover 7 is hollow cylinder Flange-shaped Parts, and it is interior accommodating
Spur gear differential mechanism 1400, the left end of power transmission cover 7 is fixedly connected by bolt with the third line carrier 1053, in order to spur gear differential
The loading and dismounting of device 1400, the right-hand member of power transmission cover 7 are connected with the 5th clutch 5.
It should be noted that changing the 3rd clutch 3, the clutch species of the 4th clutch 4 or juncture, not
It is considered as the innovation to the present invention.
As shown in Figure 1 and Figure 2, the spur gear differential mechanism 1400 is main by differential carrier 1401, the first semiaxis 1402, the
Two semiaxis 1403, the first axle shaft gear 1404, the second axle shaft gear 1405, three right planetary gears 1406 and three left lateral star teeth
Wheel 1407, three right planetary gear shafts 1408 and three left planetary gear shafts 1409 are constituted.Wherein the second axle shaft gear 1405 with
First axle shaft gear 1404 is oblique circular cylinder gear, and left planetary gear 1407 and right planetary gear 1406 are oblique circular cylinder gear,
Axial length is identical；Left planetary gear 1407 is engaged with the first axle shaft gear 1404, while engaged with right planetary gear 1406, and
Second axle shaft gear 1405 of getting along well is engaged；Right planetary gear 1406 is engaged with the second axle shaft gear 1405, and the first semiaxis of getting along well
Gear 1404 is engaged.Three respective empty sets of left planetary gear 1407 are in left planetary gear shaft 1409, three right planetary gears
1406 respective empty sets are in right planetary gear shaft 1408；Three right planetary gear shafts 1408 are with left planetary gear shaft 1409 in space
Upper parallel arrangement in pairs, three pairs of planetary gear shaft circumference uniform distributions are fixed on differential carrier 1401.Structural representation such as Fig. 2 institutes
Show.First axle shaft gear 1404 is connected with the spline of the first semiaxis 1402, the second axle shaft gear 1405 and the spline of the second semiaxis 1403
Connection, differential carrier 1401 is by bearings on the first semiaxis 1402 and the second semiaxis 1403.
The main drive motor reducing gear 1500 is located at the right side of drive axle, mainly by the 6th planetary gear train 1060, the
Seven planetary gear trains 1070, the 5th clutch 5 and the 6th clutch 6 are constituted.6th planetary gear train 1060 includes sun gear
1064th, the planetary gear 1062 of three circumference uniform distributions, planet carrier 1063 and the ring gear 1061 being fixed on driving axle housing.Wherein too
The planet carrier 1073 of sun wheel 1064 and the 7th planetary gear train 1070 is integrated, and sun gear 1064 is by bearings in the second semiaxis
On 1403, the left end of planet carrier 1063 is connected by the 5th clutch 5 with power transmission cover 7, is then realized with the third line carrier 1053
Connection, is connected by the 6th clutch 6 with differential carrier 1401.During the 5th clutch 5 engagement, the 6th planet carrier 1063 leads to
Cross power transmission cover 7 to be connected with the third line carrier 1053, common rotation, the torque of main drive motor 1002 can pass into the third line carrier
On 1053；When 5th clutch 5 disconnects, the 6th planet carrier 1063 disconnects the connection with power transmission cover 7, can be with the third line carrier
1053 each independent rotations.During the 6th clutch 6 engagement, the 6th planet carrier 1063 is connected with differential carrier 1401, jointly
Rotation, the torque of main drive motor 1002 can be passed on differential carrier 1401；When 6th clutch 6 disconnects, the 6th row
Carrier 1063 and each independent rotation of differential carrier 1401.It is described 7th seniority among brothers and sisters star wheel series 1070 include sun gear 1074, three
Planetary gear 1072, planet carrier 1073 and the ring gear 1071 being fixed on driving axle housing of circumference uniform distribution.Wherein sun gear 1074
It is connected with the hollow inner rotor shaft spline of main drive motor 1002.
It should be noted that changing the 5th clutch 5, the clutch species of the 6th clutch 6 or juncture, not
It is considered as the innovation to the present invention.
Preferably main drive motor reducing gear 1500 can be by single planetary gear train, multiple rows of planetary gear train or other forms
Reducing gear constitute, therefore the form of conversion main drive motor reducing gear 1500 is not regarded as the innovation to the present invention.
The main drive motor 1002 is located at the right side of drive axle, and it is a cartridge type inner rotor motor, and connection is right
Second semiaxis 1403 of side wheel is passed from its hollow rotor shafts endoporus.Cartridge type internal rotor and the 7th planetary gear train 1070
The spline of sun gear 1074 connect, main drive motor 1002 can by sun gear 1074 by driving torque input the He of the 5th clutch 5
In 6th clutch 6.The main drive motor 1002 by bearings on the second semiaxis 1403, its stator and its housing with
Driving axle housing is fixed.
Embodiment two
As shown in figure 3, in the present embodiment, the first planetary gear train 1030 and second in double planet wheel rows of mixing TV coupling mechanisms 1200
Planetary gear train 1040 is single two-stage planet wheel planet row.
Bi-motor coupling driving bridge operation principle of the present invention with torque fixed direction allocation function is as follows：
1st, the single drive pattern of main drive motor
When automobile is in the operating mode that normal straight is travelled and normal differential is turned, left and right sides wheel driving torque phase
Together, distributed without torque.As shown in figure 4, now first clutch 1, second clutch 2, the 3rd clutch 3, the 4th clutch
4th, the 5th clutch 5 is disconnected, and the 6th clutch 6 is engaged, and the 6th planet carrier 1063 is connected with differential carrier 1401, TV control electricity
Machine is inoperative, and torque fixed direction allocation device 2000 is not involved in the driving of vehicle, and automobile is only driven by main drive motor 1002, main driving
The moment of torsion that motor 1002 is exported is applied to after amplification is turned round in the increasing of main drive motor reducing gear 1500 by the 6th clutch 6
On differential carrier 1401, due to the principle of the grade point moment of torsion of spur gear differential mechanism 1400, act on differential carrier 1401
Moment of torsion is distributed on the first semiaxis 1402 and the second semiaxis 1403, drives running car.Now torque distribution stream is as shown in Figure 5.
2nd, torque fixed direction allocation pattern
Turned when automobile is in high speed, it is necessary to by inboard wheel torque fixed direction allocation to outboard wheels to improve turning machine
During dynamic property.As shown in fig. 6, now first clutch 1, the 3rd clutch 3 are engaged, second clutch 2, the 4th clutch 4 are equal
Disconnect, the 5th clutch 5 is disconnected, and the 6th clutch 6 is engaged, planet carrier 1033 and clutch plate in the first planetary gear train 1030
1035 and first semiaxis 1402 connect, the planet carrier 1053 in third planet train 1050 and the semiaxis of clutch plate 1055 and first
1402 connections, the 6th planet carrier 1063 is connected with differential carrier 1401, and torque fixed direction allocation device 2000 intervenes the driving of vehicle, enters
The torque fixed direction allocation of row both sides wheel.
If setting the direction of rotation of wheel during Automobile drive as positive direction, otherwise it is negative direction, so that automobile turns left as an example
Analysis：
Now control TV controlled motors 1001 export forward torque T0(T0For on the occasion of), the torque is subtracted by TV controlled motors
Fast mechanism 1100, which slows down, to be increased after torsion, and the torque of ring gear 1031 is iT in input double planet wheel rows of mixing TV coupling mechanisms 12000, wherein i
For the gearratio of TV controlled motors reducing gear 1100.So planet carrier 1033 inputs the first semiaxis in the first planetary gear train 1030
1402 torque isWherein k is the planet row feature of the first planetary gear train 1030 and the second planetary gear train 1040
Parameter.The torque that then TV controlled motors 1001 are inputted into the ring gear 1051 in single planetary row differential mechanism coupling mechanism 1300 isSo the torque that planet carrier 1053 inputs the first semiaxis in third planet train 1050 isWherein k5For the planet row characteristic parameter of third planet train 1050.Similarly, the third line star-wheel
The torque for being the input of sun gear 1054 differential carrier 1401 in 1050 isTherefore by the decile of differential carrier 1401 extremely
The torque of first semiaxis 1402 and the second semiaxis 1403 is
So the final torque for inputting the first semiaxis 1402 by TV controlled motors 1001 is in the first planetary gear train 1030
Planet carrier 1033 inputs planet carrier 1053 in the torque of the first semiaxis 1402, third planet train 1050 by first clutch 1
Pass through the torque of the 3rd clutch 3 the first semiaxis 1402 of input, the part of torque three of the decile of differential carrier 1401 to the first semiaxis
Sum is constituted, and its result isThe torque for finally entering the second semiaxis 1403 by TV controlled motors 1001 is
As above as can be seen that being inputted by TV controlled motors 1001 into torque of the first semiaxis 1402 and the second semiaxis 1403 etc.
It is big reversely therefore not change total zigzag tread patterns torque, and the left side wheel torque reduction being connected with the first semiaxis 1402, with the
The connected right side wheels torque increase of two semiaxis 1403, can produce a yaw moment for helping to turn left, improve automobile
Left-hand bend mobility, torque distribution stream now is as shown in Figure 7.If it should be noted that TV controlled motors are exported at this moment
Negative sense torque, then driving torque orientation is assigned to left side wheel by right side wheels, by produce one prevent vehicle from excessively turning
To yaw moment, for keeping stability of automobile.
It can similarly obtain, when automobile high speed is turned right, the output negative sense of motor controller controls TV controlled motors 1001 turns
Square, a yaw moment for helping to turn right can be produced on the premise of total zigzag tread patterns torque is not changed, vapour is improved
The right-hand bend mobility of car, torque distribution stream is as shown in Figure 8.If it should be noted that TV controlled motors export forward direction at this moment
Torque, then driving torque orientation is assigned to right side wheels by left side wheel, by produce one prevent vehicle oversteering
Yaw moment, for keeping stability of automobile.
3rd, TV controlled motors torque coupling pattern
When automobile need not increase turning mobility and maintain stability, such as turned when automobile is kept straight on normal differential
Operating mode, without carrying out torque fixed direction allocation.In order to improve power assembly utilization rate and drive efficiency, it is to avoid reactive loss, work as vapour
When car is in some specific operations, TV controlled motors drive running car jointly with main drive motor.Now, main drive motor is carried
For underlying constant power output, TV controlled motors " peak load shifting ".I.e. in starting or anxious accelerating mode, torque-demand is big, is
Avoid main drive motor from entering peak load inefficient interval, now control TV controlled motors to participate in driving, its output torque
Common driving running car after being coupled with main drive motor；It is smaller in vehicle demand power, and it is in TV controlled motor high efficiency
When interval (such as middle Smaller load runs at a low speed operating mode), it can now control TV controlled motors that vehicle traveling is operated alone；Whole
When car demand power is between main drive motor high efficient area (such as moderate duty high speed at the uniform velocity driving cycle), now control
Vehicle traveling is operated alone in main drive motor.
As shown in figure 9, now the clutch 3 of first clutch 1 and the 3rd disconnects, the clutch 4 of second clutch 2 and the 4th
Engage, the 5th clutch 5 disconnects, the 6th clutch 6 is engaged, the planet carrier 1033 in the first planetary gear train 1030 is fixed on drive
On dynamic axle housing body, the planet carrier 1053 in third planet train 1050 is fixed on Driving axle housing, the 6th planet carrier 1063 with
Differential carrier 1401 is connected.Double planet wheel rows of mixing is passed through in torque after TV controlled motors are amplified through TV controlled motors reducing gear 1100 again
TV coupling mechanisms 1200 are transferred to the ring gear 1051 of third planet train after further converting, due to the row of third planet train
Carrier is fixed, and the then torque further discharges big rear input to third planet by third planet and arranges sun gear 1054 i.e. just
On gear differential mechanism shell 1401.Now vehicle traveling can be each operated alone in TV controlled motors and main drive motor, also can be simultaneously
Join torque coupling driving vehicle traveling, provide bigger driving torque for automobile to meet vehicle and accelerate power demand, torque point
Flow is as shown in Figure 10.
4th, TV controlled motors rotating speed CGCM
When automobile need not increase turning mobility and maintain stability, such as turned when automobile is kept straight on normal differential
Operating mode, without carrying out torque fixed direction allocation.Under some specific operations, to maintain main drive motor to be transported all the time in high efficient district
Turn, TV controlled motors can be coupled as velodyne with main drive motor rotating speed, remaining efficient at its at main motor rotating speed
Driving vehicle variable speed traveling, on the one hand maintains main motor efficiency operation, on the other hand by main driving while rate is interval
A part of power of motor is converted into electric energy and is stored into again in battery.
As shown in figure 11, now first clutch 1, the 3rd clutch 3 are disconnected, and second clutch 2 is engaged, the 4th clutch
Device 4 is disconnected, and the 5th clutch 5 is engaged, and the 6th clutch 6 disconnects, and the planet carrier 1033 in the first planetary gear train 1030 is fixed on
On Driving axle housing, the planet carrier 1053 in third planet train 1050 is connected with the 6th planet carrier 1063.Wherein main driving electricity
Machine 1002 can be connected through reducing gear 1500 and power transmission cover 7 with the third line carrier 1053, and TV controlled motors 1001 can slow down through TV
Mechanism 1100 is connected with double planet wheel rows of mixing TV coupling mechanisms 1200 with the 3rd gear ring 1051, the sun gear of differential carrier 1401 and the 3rd
1054 are fixedly connected, therefore main drive motor 1002, TV controlled motors 1001 and differential carrier 1041 pass through third planet train
1050 rotating speeds are coupled, and are changed the rotating speed of TV controlled motors 1001, that is, are adjusted the rotating speed of main drive motor 1002, now TV controls electricity
The output torque of machine 1001 is determined by the output torque of main drive motor 1002, is dragged power generation operation state in counter, is made automobile
Realize variable speed.Power distribution stream is as shown in figure 12.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (10)
1. a kind of bi-motor coupling driving bridge with torque fixed direction allocation function, it is characterised in that including：
Main driving mechanism, it is arranged on spur gear differential mechanism side, for output driving torque, driving vehicle traveling；
TV controls drive mechanism, and it is arranged on the opposite side of the spur gear differential mechanism, for output control power；
First single epicyclic train, it includes the first sun gear, the first planetary gear, the first planet carrier and the first gear ring, institute
State the first sun gear to be rotatably supported on the first semiaxis, first gear ring controls the output end of drive mechanism to be connected with TV；
Second single epicyclic train, it includes the second sun gear, the second planetary gear, the second planet carrier and the second gear ring, institute
State the second gear ring to be fixed on Driving axle housing, second sun gear is fixedly and coaxially connected with the first sun gear；
3rd single epicyclic train, it includes the 3rd sun gear, the third line star-wheel, the third line carrier and the 3rd gear ring, institute
State the 3rd sun gear to be fixedly connected with differential casing, the 3rd gear ring is fixedly connected with the second planet carrier；
First clutch, it is connected with the first semiaxis and the first planet carrier respectively, so that the first semiaxis and the separation of the first planet carrier
Or engagement；
3rd clutch, it is connected with the first semiaxis and the third line carrier respectively, so that the first semiaxis and the separation of the third line carrier
Or engagement；
Wherein, the first single epicyclic train and the second single epicyclic train have identical characteristic parameter.
2. the bi-motor coupling driving bridge according to claim 1 with torque fixed direction allocation function, it is characterised in that also
Including：
Second clutch, it is connected with the first planet carrier and Driving axle housing respectively, so that the first planet carrier and Driving axle housing
Separation is engaged；
4th clutch, it is connected with the third line carrier and Driving axle housing respectively, so that the third line carrier and Driving axle housing
Separation is engaged.
3. the bi-motor coupling driving bridge according to claim 1 with torque fixed direction allocation function, it is characterised in that also
Including：
Power transmission cover, it is hollow cylinder Flange-shaped Parts, and accommodating spur gear differential mechanism in it, its one end is solid with bolt with the third line carrier
Fixed connection, to facilitate spur gear differential mechanism to mount and dismount.
4. the bi-motor coupling driving bridge according to claim 1 with torque fixed direction allocation function, it is characterised in that also
Including：
5th clutch, it is connected with power transmission cover and main driving mechanism output end respectively, so that power transmission cover and main driving mechanism are defeated
Go out end separation or engage；
6th clutch, it is connected with main driving mechanism output end and differential casing respectively, so that main driving mechanism output end
Separate or engage with differential casing.
5. the bi-motor coupling driving bridge according to claim 1 with torque fixed direction allocation function, it is characterised in that institute
Stating TV control drive mechanisms includes TV controlled motors and TV reducing gears；
The TV controlled motors have hollow output shaft, and first semiaxis is rotatably supported at the hollow output shaft, and
And passed from hollow output shaft.
6. the bi-motor coupling driving bridge according to claim 5 with torque fixed direction allocation function, it is characterised in that institute
Stating TV reducing gears includes：
4th single epicyclic train, it includes the 4th sun gear, fourth line star-wheel, fourth line carrier and the 4th gear ring, institute
State the 4th sun gear to be fixedly connected with hollow output shaft, the 4th gear ring is fixed on Driving axle housing；
5th single epicyclic train, it includes the 5th sun gear, fifth line star-wheel, fifth line carrier and the 5th gear ring, institute
State the 5th sun gear to be fixedly connected with fourth line carrier, the 5th gear ring is fixed on driving axle housing, the fifth line carrier
It is fixedly connected with the first gear ring.
7. the bi-motor coupling driving bridge according to claim 1 with torque fixed direction allocation function, it is characterised in that institute
Stating main driving mechanism includes main drive motor and main gear reducer structure.
8. the bi-motor coupling driving bridge according to claim 7 with torque fixed direction allocation function, it is characterised in that institute
Stating main drive motor has a hollow output shaft, and the second semiaxis is rotatably supported at the hollow output shaft, and from hollow defeated
Passed in shaft.
9. the bi-motor coupling driving bridge according to claim 7 with torque fixed direction allocation function, it is characterised in that institute
Stating main gear reducer structure includes：
7th single epicyclic train, it includes the 7th sun gear, the 7th planetary gear, the 7th planet carrier and the 7th gear ring, institute
State the 7th sun gear to be fixedly connected with main drive motor output shaft, the 7th gear ring is fixed on Driving axle housing；
6th single epicyclic train, it includes the 6th sun gear, the 6th planetary gear, the 6th planet carrier and the 6th gear ring, institute
State the 6th sun gear to be fixedly connected with the 7th planet carrier, the 6th gear ring is fixed on Driving axle housing, the 6th planet
Frame is fixedly connected with the 5th clutch and the 6th clutch.
10. a kind of bi-motor coupling driving bridge with torque fixed direction allocation function, it is characterised in that including：
Main driving mechanism, it is arranged on spur gear differential mechanism side, for output driving torque, driving vehicle traveling；
TV controls drive mechanism, and it is arranged on the opposite side of the spur gear differential mechanism, for output control power；
First single double pinions system, it includes the first sun gear, the first planetary gear, the first planet carrier and the first tooth
Circle, first sun gear is rotatably supported on the first semiaxis, and first gear ring controls the output end of drive mechanism with TV
Connection；
Second single double pinions system, it includes the second sun gear, the second planetary gear, the second planet carrier and the second tooth
Circle, second gear ring is fixed on Driving axle housing, and second sun gear is fixedly and coaxially connected with the first sun gear；
3rd single epicyclic train, it includes the 3rd sun gear, the third line star-wheel, the third line carrier and the 3rd gear ring, institute
State the 3rd sun gear to be fixedly connected with differential casing, the 3rd gear ring is fixedly connected with the second planet carrier；
First clutch, it is connected with the first semiaxis and the first planet carrier respectively, so that the first semiaxis and the separation of the first planet carrier
Or engagement；
3rd clutch, it is connected with the first semiaxis and the third line carrier respectively, so that the first semiaxis and the separation of the third line carrier
Or engagement；
Second clutch, it is connected with the first planet carrier and Driving axle housing respectively, so that the first planet carrier and Driving axle housing
Separation is engaged；
4th clutch, it is connected with the third line carrier and Driving axle housing respectively, so that the third line carrier and Driving axle housing
Separation is engaged；
Power transmission cover, it is hollow cylinder Flange-shaped Parts, and accommodating spur gear differential mechanism in it, its one end is solid with bolt with the third line carrier
Fixed connection, to facilitate spur gear differential mechanism to mount and dismount；
5th clutch, it is connected with power transmission cover and main driving mechanism output end respectively, so that power transmission cover and main driving mechanism are defeated
Go out end separation or engage；
6th clutch, it is connected with main driving mechanism output end and differential casing respectively, so that main driving mechanism output end
Separate or engage with differential casing；
Wherein, the first single double pinions system has identical characteristic parameter with the second single double pinions system.
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| CN201710266538.0A CN106965660B (en) | 2017-04-21 | 2017-04-21 | Double-motor coupling drive axle with torque directional distribution function |
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|---|---|---|---|
| CN201710266538.0A CN106965660B (en) | 2017-04-21 | 2017-04-21 | Double-motor coupling drive axle with torque directional distribution function |
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| CN113022227A (en) * | 2021-04-27 | 2021-06-25 | 吉林大学 | Multi-mode double-motor coupling electric drive axle |
| CN113103826A (en) * | 2021-05-12 | 2021-07-13 | 吉林大学 | Torque directional distribution electric drive axle adopting double-planet-wheel cylindrical gear differential mechanism |
| CN113400864A (en) * | 2021-08-12 | 2021-09-17 | 吉林大学 | Multi-mode torque-vectoring electric transaxle using a one-way clutch |
| CN113415107A (en) * | 2021-08-12 | 2021-09-21 | 吉林大学 | Two-mode electric drive axle capable of carrying out torque parallel connection and torque directional distribution |
| CN114454711A (en) * | 2022-02-25 | 2022-05-10 | 金龙联合汽车工业（苏州）有限公司 | Coaxial double-planet-row type double-motor drive axle |
| CN116494743A (en) * | 2023-06-12 | 2023-07-28 | 中国重汽集团济南动力有限公司 | Electric drive axle system and car |
| US11859704B2 (en) * | 2021-12-22 | 2024-01-02 | Jilin University | Four-mode dual-motor coupling electric drive axle |
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| US11859704B2 (en) * | 2021-12-22 | 2024-01-02 | Jilin University | Four-mode dual-motor coupling electric drive axle |
| CN114454711A (en) * | 2022-02-25 | 2022-05-10 | 金龙联合汽车工业（苏州）有限公司 | Coaxial double-planet-row type double-motor drive axle |
| CN116494743A (en) * | 2023-06-12 | 2023-07-28 | 中国重汽集团济南动力有限公司 | Electric drive axle system and car |
| CN116494743B (en) * | 2023-06-12 | 2024-04-16 | 中国重汽集团济南动力有限公司 | Electric drive axle system and car |
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