CN104670010B - A kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function - Google Patents
A kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function Download PDFInfo
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- CN104670010B CN104670010B CN201510072725.6A CN201510072725A CN104670010B CN 104670010 B CN104670010 B CN 104670010B CN 201510072725 A CN201510072725 A CN 201510072725A CN 104670010 B CN104670010 B CN 104670010B
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Abstract
The invention discloses a kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function, including：Motor, main differential mechanism, coupling transmission device.Main differential mechanism includes drive shaft, transmission device, the first output shaft and the second output shaft that can be rotated about the axis；Coupling transmission device includes the first planetary gear train and the second planetary gear train, second planetary gear train is connected with motor output shaft, receive the torque of motor output shaft output, and export another torque, first planetary gear train is connected with second planetary gear train, the torque of the second planetary gear train output is received, the first planetary gear train is connected with transmission device, and torque in opposite direction is provided for the first output shaft and the second output shaft.The present invention can give the fixed direction allocation of the driving torque selectivity by its transmission to both sides semiaxis, by directly forcing the planetary gear for connecting two output shafts to carry out what two torques for exporting between centers distributed to transferring certainly, i.e. torque distribution is directly completed inside differential mechanism.
Description
Technical field
The present invention relates to vehicle transmission field, more particularly to a kind of electronic active spur gear for possessing torque fixed direction allocation function
Differential mechanism.
Background technology
Automobile differential is the critical piece of drive axle, and its effect is exactly to vehicle right and left both sides semiaxis passing power
While, it is allowed to left and right semiaxis is rotated with different rotating speeds, meets that both sides wheel is travelled in a manner of pure rolling as far as possible, is reduced
Tire and the friction on ground.
When the vehicle is running, spur gear differential mechanism all has difference between two wheels of balance left and right as conventional carrier
The function of rotating speed.In this case, it is small will to be faster than orbital radius for the big vehicle wheel rotational speeds of Ackermann steer angle orbital radius
Wheel, but the allotment ratio of left and right wheelses torque is fixed 1：1.This is feasible to a certain extent, but in order to realize
The Optimal Control of vehicle, the big wheel of turning path radius should export bigger torque than the wheel under turning path radius.
In fact, the active differential mechanism with torque fixed direction allocation function is arranged on back axle, it can prevent that vehicle front-wheel steer is insufficient,
And when active torque distribution control system is intervened, vehicle deceleration can't be made, therefore improve vehicle safety and motor-driven
Performance.
In addition, though conventional carrier can be such that the driving force of automobile reasonably distributes on good flat road surface is adhered to
On each driving wheel, but rugged, heavy road condition is once run into, when one of driving wheel skids even idle running completely,
Whole driving wheels can be wasted on the wheel of skidding by differential mechanism, make automobile can not normally travel.Certainly, there are Anti-slip type and locking
There is effectively solving this in formula differential mechanism, but such differential mechanism tends to the rotating speed for making the side drive wheel of wheel two
It is identical.So the mobility of vehicle high-speed turning is limited to a certain extent.
Based on this, it is necessary on the basis of spur gear differential mechanism mechanical structure, design is a kind of new to possess torque orientation
The electronic active differential mechanism of distribution capability.
The content of the invention
The present invention has designed and developed a kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function, solves
In the prior art can only mean allocation left and right wheelses torque the defects of, realize orient on demand by drive shaft input torque
It is assigned in left and right wheelses.
Technical scheme provided by the invention is：
A kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function, including：
Motor, it has the motor output shaft of exportable torque；
Main differential mechanism, it includes drive shaft, transmission device, the first output shaft and the second output shaft that can be rotated about the axis,
The drive shaft will drive first output shaft and the second output shaft can be with identical or different rotating speed by transmission device
Rotating Vortex；
Coupling transmission device, it includes the first planetary gear train and the second planetary gear train, second planetary gear train with it is described
Motor output shaft connects, and receives the torque of motor output shaft output, and exports another torque, first planetary gear train with
The second planetary gear train connection, receive the torque of the second planetary gear train output, first planetary gear train and the biography
Dynamic device connection, torque in opposite direction is provided for first output shaft and the second output shaft.
Preferably, the transmission device includes
First sun gear, it is fixedly and coaxially connected with first output shaft, to be rotated jointly with first output shaft；
Second sun gear, it is fixedly and coaxially connected with second output shaft, to be rotated jointly with second output shaft；
First planetary gear, it is engaged with first sun gear；
Second planetary gear, it is engaged with second sun gear；
First planet carrier, it is rotatably connected with first planetary gear；
Second planet carrier, it is rotatably connected with second planetary gear；
Differential carrier, it is rotatably connected with first planet carrier and the second planet carrier, and the drive shaft passes through a pair
Meshed gears drives the differential carrier to rotate so that first planetary gear and the second planetary gear rotating around described first too
Sun wheel and the revolution of the second sun gear.
Preferably, first planetary gear train includes the 3rd sun gear, the third line star-wheel, fourth line star-wheel and the first tooth
Circle, the 3rd sun gear are fixed with respect to ground, the 3rd sun gear and the third line star-wheel, fourth line star-wheel and the first gear ring
Engage successively, the fourth line star-wheel is rotatably connected with second planet carrier, rotatably connects on the third line star-wheel
The third line carrier is connected to, so that the revolution of the third line star-wheel is exported by the third line carrier.
Preferably, second planetary gear train include the 4th sun gear, fifth line star-wheel, the second gear ring, the described 4th
Sun gear is fixedly and coaxially connected with the motor output shaft, so that the 4th sun gear revolves jointly with the motor output shaft
Turn, the fifth line star-wheel is meshed with the 4th sun gear and the second gear ring respectively, rotatable on the fifth line star-wheel
Be connected with fourth line carrier so that the revolution of the fifth line star-wheel is exported by the fourth line carrier, described the third line
Carrier is mutually fixedly connected with fourth line carrier, and first gear ring is mutually fixedly connected with second gear ring.
Preferably, the third line carrier and fourth line carrier are integrally formed.
Preferably, first gear ring is integrally formed with second gear ring.
A kind of automobile, including the above-mentioned electronic active spur gear differential mechanism for possessing torque fixed direction allocation function.
The beneficial effects of the invention are as follows：
The electronic positive differential mechanism of active is traditional optimal replacement based on differential mechanism of the clutch with coupling transmission device
Person, because the differential mechanism does not use conventional carrier conical pinion gear, and planetary gear spur gear arranged in parallel is used, this
Space and weight greatly reduce needed for meaning, and potential torque capacity significantly improves.And the design of the differential mechanism is more
Compact, lightly, noise is lower.Efficiency and performance greatly promote.There is data to suggest that traditional cone is replaced using spur gear differential mechanism
Type gear differential mechanism can be that the back axle of intermediate car mitigates more than 30% weight and almost 70% transverse axis space.
1st, the electronic active spur gear differential mechanism of the present invention for possessing torque fixed direction allocation function can will pass through it
The fixed direction allocation of the driving torque selectivity of transmission gives both sides semiaxis, and in torque fixed direction allocation, it is total due to that will not change
Torque, therefore vehicle deceleration will not be made, and the turning mobility of automobile and the Driving of driver can be increased.
2nd, described active differential mechanism is by directly forcing the planetary gear for connecting left and right semiaxis to carry out a left side to transferring certainly
What the torque between right axle shaft distributed, i.e. torque distribution is directly completed inside differential mechanism.So the differential mechanism no longer needs
Any unnecessary component, its required axial space greatly reduce.
Power transmission mechanism when the 3rd, being distributed using a set of coupling mechanism as the differential mechanism torque, while have deceleration work(concurrently
Energy and power coupling function, and differential speed motor can be arranged in coaxial fashion, make differential design compacter.The motor
Do not rotate when being distributed without torque, only just rotated in active distribution of torque to provide torque.
4th, a motor is only needed to realize the power source of torque distribution as differential mechanism, it is easily controllable.Only need to control
Torque on the distribution left and right semiaxis of the forward or reverse can orientation of rotor processed.This is based on clutch different from other
Or brake realizes the differential mechanism of torque distribution, it needs to possess two sets of clutches or brake as power source simultaneously, causes
Part is various, complicated.
5 and the power source that is distributed as the differential mechanism torque using motor, the differential mechanism is also helped in electric automobile
Or the application on hybrid vehicle, and then expand the use field of the differential mechanism.I.e. the present invention both may be mounted at biography
Unite on the vehicle of power source, can also be arranged on the vehicle of new energy power, have wide range of applications.
6th, because the present invention is the Curve guide impeller on the basis of original spur gear differential design, therefore with transformation processing
Cost is low, the characteristics of manufacturing process and good technological process inheritance.
Brief description of the drawings
Fig. 1 is the structural representation of differential mechanism of the present invention.
Fig. 2 is A-A sectional views in Fig. 1.
Fig. 3 is the first epicyclic train operation principle of the present invention.
Fig. 4 is that path schematic diagram is flowed in torque when differential mechanism torque fixed direction allocation device of the present invention does not work.
Fig. 5 is that path schematic diagram is flowed in the torque that torque fixed direction allocation device distributes under vehicle right-hand bend operating mode.
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.
Automobile differential is that one kind can make rotary motion reach two axles from an axle, and makes the latter each other can be with difference
The differential attachment of rotating speed rotation, as shown in figure 1, automobile differential distributes to torque caused by vehicle motor is located at car respectively
First output shaft 62 and the second output shaft 64 at left and right sides of, make them be rotated along its axis.
Differential mechanism of the present invention includes differential carrier 22, includes other workpieces in it, differential mechanism also include by
The row of the two asymmetric sun gear 18 of first sun gear 16 and second and the first planetary gear 12 and the second planetary gear 14 compositions
Star wheel device.Engagement the first planetary gear 12 and the second planetary gear 14 of differential mechanism respectively with the first sun gear 16 and the second sun gear
18 engagements, i.e. the first planetary gear 12 engages with the first sun gear 16 without being engaged with the second sun gear 18, the second planetary gear 14 and
Second sun gear 18 is engaged without being engaged with the first sun gear 16.And the first sun gear 16 and the second sun gear 18 are respectively with
One output shaft 62 is connected with the second output shaft 64.First planet carrier 26 of the first planetary gear 12 is connected with differential carrier 22 to be allowed to
It can be rotated together with differential carrier 22.And the other end of the second planetary gear 14 passes through differential mechanism with its second planet carrier 36
Hole 15 on shell 22 is protruding to be connected with the first epicyclic train 30 of torque fixed direction allocation device 60.The commutating tooth of this form
Taking turns differential mechanism can be realized by the form that the second planetary gear 14 combines with its second planet carrier 36 and torque distribution devices 60
To the first output shaft 62 and the ability of the torque fixed direction allocation of the second output shaft 64, and the first planetary gear 12 of the differential mechanism and
Two planetary gears 14 realize the function that cone planetary gear is same in bevel differential in theory.
Differential mechanism of the present invention can carry out work according to conventional differential.Pass through power train and hair outside drive shaft 72
Motivation is connected to transmit the driving torque of engine, is provided with taper drive gear 74 thereon.Taper drive gear 74 and peace
Bevel ring gear 66 on differential carrier 22 engages.When engine applies torque and rotates drive shaft 72, taper thereon
The rotation conic gear ring 66 of drive gear 74 and differential carrier 22.Differential carrier 22 and then the first planet carrier 26, Jin Er of rotation
One planet carrier 26 makes the first planetary gear 12 and the second planetary gear 14 produces the revolution around x-axis and rotates what is be engaged with respectively
First sun gear 16 and the second sun gear 18, and then rotate the first output shaft 62 and the second output shaft 64.If the first output shaft
62 or second than another axle of one of output shaft 64 rotate soon, such as when being turned, the first planetary gear 12 and
Two planetary gears 14 will rotation respectively, but will torque be transferred to the first sun gear 16 and the second sun gear being engaged with respectively
18 and the first output shaft 62 or the second output shaft 64 that are attached thereto.
Spur gear differential mechanism of the present invention also has is output to the first output shaft 62 and the second output shaft by engine
The ability of torque selectivity fixed direction allocation on 64, to make one of the first output shaft 62 and the second output shaft 64 can
Than another axle transmits bigger torque.The ability of this distribution to left and right wheelses torque orientation can greatly improve vehicle
Turning mobility.Therefore, differential mechanism of the present invention is equipped with a torque fixed direction allocation device 60.Receiving control signal
When, additional torque can be assigned to by torque fixed direction allocation device 60 by the first planetary gear 12 and the second planetary gear 14
On first output shaft 62 and the second output shaft 64.Torque fixed direction allocation device 60 mainly includes a coupled transmission mechanism 50 and one
Individual differential speed motor 70.
The coupled transmission mechanism 50 of torque fixed direction allocation device 60 includes the first epicyclic train 30 and the second planetary gear
It is 40.Fig. 2 is referred in the lump, and the first epicyclic train 30 has fixed 3rd sun gear 44, prevents it from around X-axis
Rotated.First epicyclic train 30 also have two can be rotated around sun gear 44, intermeshing but not be total to frame the 3rd
Planetary gear 34 and fourth line star-wheel 24, three sun gears 44 are only engaged with the third line star-wheel 34 without being engaged with fourth line star-wheel 24.
Wherein, the second planetary gear 14 of fourth line star-wheel 24 and differential mechanism shares the second planet carrier 36, and its gear outer end and second
Planetary gear 14 links together from the part that the hole 15 of differential carrier 22 is stretched.So can of fourth planet gear 24 is same
Second planetary gear 14 forms an entirety, and the can of torque fixed direction allocation device 60 is by controlling fourth planet gear 24
Torque carries out the control to differential mechanism torque.
The third planet gear 34 of first epicyclic train 30 also has the third line carrier 42, for the second planetary gear
Be 40 connection on.First epicyclic train 30 also has first gear ring 28 that can be rotated freely, and is equally used for and row
In the connection of star gear train 40, the first gear ring 28 is engaged with fourth line star-wheel 24 but not engaged with the third line star-wheel 34.
Second epicyclic train 40 of coupled transmission mechanism 50 has second gear ring 32 that can be rotated freely, and
Second gear ring 32 connects together with the first gear ring 28, the second gear ring 32 of epicyclic train 40 and the of the first epicyclic train 30
One gear ring 28 can be processed into an entirety.Second epicyclic train 40 also includes the 4th sun gear 56, turns for connecting
On the differential speed motor 70 of square fixed direction allocation device 60.Epicyclic train 40 also has a fifth line star-wheel 52, and it is located at second
Between the sun gear 56 of gear ring 32 and the 4th and it is engaged with.The fourth line carrier of the fifth line star-wheel 52 of second epicyclic train 40
54 are connected with the third line carrier 42 of the third line star-wheel 34 of the first epicyclic train 30, as preferable, the second planetary gear
It is that the third line carrier 42 of 40 epicyclic train 30 of fourth line carrier 54 and first can be processed into an entirety.
The differential speed motor 70 of torque fixed direction allocation device 60 includes a cartridge type motor 46 and rotor 58, above-mentioned
The second output shaft 64 be just connected from the hollow position of cartridge type motor 46 is protruding with wheel.Cartridge type motor 46 is solid
It is fixed motionless, and rotor 58 can be rotated with output torque around X-axis.Wherein the rotor 58 of differential speed motor 70 is with coupling
4th sun gear 56 of the second epicyclic train 40 of transmission mechanism 50 is connected.As preferable, the 4th sun gear 56 can be with
Rotor 58 is processed as an entirety.
When cartridge type motor 46 receives control signal, the rotation around X-axis will occur for rotor 58, it is same must can
The 4th sun gear 56 on rotor 58 is set to produce the rotation around X-axis.The level of torque acted on rotor 58 can be with
It is controlled according to electric machine controller.
When automobile straight-line travelling, direct torque function is closed, and rotor 58 does not produce rotation, has no effect on automobile drive
The distribution of dynamic torque.Now, differential carrier 22 and the first planet carrier 26 and the second planet carrier 36 thereon, the first sun gear 16
All rotated with the second sun gear 18 and the first output shaft 62 and the second output shaft 64 with same speed.And then first planetary gear
12 and the second planetary gear 14 occur without rotation, and then with the second planetary gear 14 to be connected around the revolution with identical speed of X-axis
The fourth planet gear 24 of the first epicyclic train 30 revolution with identical speed around X-axis occurs without rotation, Jin Er
The fourth line star-wheel 24 of one epicyclic train 30 is rotated its first gear ring 28 and rotated with same speed around X-axis.And then second row
Second gear ring 32 of star gear train 40 is also rotated with same speed.With reference to figure 3, at this point it is possible to the public affairs fourth line star-wheel 24
Turn effect to the third line star-wheel 34 and regard a gear ring 38 as to rotate effect to the third line star-wheel 34, as shown in figure 3, i.e. gear ring
38th, the third line star-wheel 34 and sun gear 44 form the rotary speed and the third line star-wheel 34 of an epicyclic train 20 and gear ring 38
Revolution speed be identical.And the revolution speed of planetary gear 34 is different from the rotary speed of gear ring 38, so planet
The revolution speed of gear 24 and 34 is different, i.e., the revolution speed of the third line star-wheel 34 will be faster than fourth line star-wheel 24 slightly
Revolution speed.The number for designing third planet gear 34 herein is five, and the number of fourth line star-wheel 24 is four.When the 4th
When the gear teeth meshing scope of planetary gear 24 and third planet gear 34 is more than 18 degree, third planet gear 34a can not have also
When departing from fourth planet gear 24a, third planet gear 34b cans are smoothly engaged and are driven with fourth planet gear 24b,
Similarly, according to the tooth form and the number of teeth of gear ring 38 come design under conditions of the tooth form of fourth line star-wheel 24 and the number of teeth any one the 4th
Mutually can smoothly it be driven between planetary gear 24, third planet gear 34 without de- tooth occurs, plays tooth behavior.And can
To be worked as normal epicyclic gear train.
Now, it is ensured that planetary gear train 20 is formed and by by the 3rd sun gear 44, the third line star-wheel 34 and gear ring 38
The planet row characteristic parameter one for the second planetary gear train 40 that four sun gears 56, the gear ring 32 of fifth line star-wheel 52 and second form
Cause, due to the fourth line star-wheel 52 of the planetary gear train 40 of the third line carrier 42 and second of the third line star-wheel 34 of planetary gear train 20
Fourth line carrier 54 links together, i.e., the third line carrier 42 of planetary gear train 20 and 40 and fourth line carrier 54 be at any time
All there is identical rotating speed.The second gear ring 32 of the planetary gear train 40 of gear ring 38 and second of planetary gear train 20 is with identical speed simultaneously
Degree rotation, it can be seen from planetary equation of motion, now, the 3rd sun gear 44 and epicyclic train of epicyclic train 20
40 the 4th sun gear 56 has identical rotary speed.And the 3rd sun gear 44 maintains static, it is known that, now the second row
4th sun gear 56 of star wheel series 40 does not rotate.I.e. rotor 58 does not rotate now.
When direct torque function is opened, the cartridge type motor 46 of torque fixed direction allocation device 60 receives control signal,
Rotor 58 can rotate with the 4th sun gear 56 thereon, and then the second epicyclic train 40 of coupled transmission mechanism 50
Fourth line star-wheel 52 can revolve round the sun in the same direction, and then its fourth line carrier 54 rotates in the same direction, and the second row
Second gear ring 32 of star gear train 40 rotates in a reverse direction.And then first epicyclic train 30 the third line star-wheel 34
Three planet carriers 42 rotate in the same direction, and then the third line star-wheel 34 thereon revolves round the sun in the same direction and rotation, and the
First gear ring 28 of one epicyclic train 30 and the second gear ring 32 of the second planetary gear train 40 are in the same direction but and the third line
The opposite direction of star-wheel 34 rotates.So, the fourth line star-wheel 24 engaged with the first gear ring 28 and the third line star-wheel 34 can occur
Rotation.And then first planetary gear 12 and the second planetary gear 14 can also rotate.In this sense, when automobile is kept straight on and is turned
When the cartridge type motor 46 of square fixed direction allocation device 60 does not receive control signal, rotor 58 does not rotate, and does not influence
The distribution of Automobile drive torque.And in automobile turning or when needing torque to distribute under other operating modes, controlled motor can be passed through
Rotating forward or reversely rotating for rotor 58 carrys out the specific torque distributed on the first output shaft 62 and the second output shaft 64.Work as
When the rotating speed of both sides wheel is identical, rotor 58 remains static, and is just rotated only in active distribution of torque to provide
Torque.
Generally, when differential mechanism is run, cartridge type motor 46 does not receive control signal, and its rotor 58 is not
The rotation around X-axis can occur, so especially suitable for the situation when its straight line travels.In the case, by drive shaft 72
The driving torque of offer mean allocation between the first output shaft 62 and the second output shaft 64 and the wheel of its driving.This and biography
Differential mechanism application method of uniting is identical, and now, the differential mechanism can substantially be used as a conventional carrier to run, by whole torques
And power passes to differential carrier 22 simultaneously by bevel ring gear 66 and then rotates the first planet carrier 26 and the second planet carrier 36 thereon,
And then revolution around X-axis occurs for the first planetary gear 12 inside differential mechanism and the second planetary gear 14 without rotation, and then the first row
The planetary gear 14 of star-wheel 12 and second rotates the first sun gear 16 and the second sun gear 18 being engaged with respectively, and then rotates respectively
First output shaft 62 and the second output shaft 64, as shown in Figure 4.Because cartridge type motor 46 is without reception control signal, motor
Rotor 58 does not rotate, and torque fixed direction allocation device 60 does not transmit any torque, and is not influenceing differential mechanism just in addition
Often operation.
When the vehicle is turning, particularly to be carried out at high speed turning, the cartridge type motor of torque fixed direction allocation device 60
46 should receive control signal, rotate rotor 58, so as to which more torques orientation is sent into vehicle outer side car
On wheel.For example, when vehicle enters a right bend, it is assumed that as positive direction, on the contrary is anti-for the direction of rotation of wheel during driving
Direction.Now, in the wheel of vehicle left side and the first output shaft 62 by than being revolved in the wheel of vehicle right side and the second output shaft 64
Turn soon.The cartridge type motor 46 of torque fixed direction allocation device 60 receives control signal, makes rotor 58 and thereon
4th sun gear 56 produces the rotation of opposite direction, and then the fifth line star-wheel of the second epicyclic train 40 of coupled transmission mechanism 50
52 produce the revolution of opposite direction, and then the fourth line carrier 54 of row Alcor wheel 52 can produce the rotation of opposite direction, so couple
Second gear ring 32 of the second epicyclic train 40 of transmission mechanism 50 can produce the rotation of positive direction.And then coupled transmission mechanism 50
The third line carrier 42 of the first epicyclic train 30 can produce the rotation of opposite direction, and then the third line star-wheel 34 thereon also produces
The revolution and rotation of raw opposite direction, and the first gear ring 28 of the first epicyclic train 30 can produce the rotation of positive direction, Jin Er
Between the gear ring 28 of the third line star-wheel 34 and first and the fourth line star-wheel 24 that engages can produce the rotation of positive direction.So,
The second planetary gear 14 and the first planetary gear 12 being attached thereto just no longer only freely revolve round the sun around X-axis, but produce respectively square
To rotation and opposite direction rotation.And then produce to the second sun gear 18 being engaged with respectively and the first sun gear 16 and its
Each the second connected output shaft 64 and the opposite direction of the first output shaft 62 and the torque of positive direction.In fact, torque orientation point
Coupled transmission mechanism 50 with device 60 serves the effect of a torque amplification, and it can apply applies than cartridge type motor 46
The much larger torque of torque on to the 4th sun gear 56 is on the first planetary gear 12 and the second planetary gear 14.Due to the second planet
The planetary gear 12 of wheel 14 and first produces the resistance hindered and the power actuated to the second output shaft 64 and the first output shaft 62 respectively,
It is more shifted to driving torque on the first output shaft 62 rather than on the second output shaft 64, as shown in Figure 5 by differential carrier 22.
Therefore, by the pressure rotation of the second planetary gear 14 and the first planetary gear 12, the first output shaft 62 can be made to possess higher rotating speed
Rotate.Therefore, now torque fixed direction allocation device 60 serves the effect for promoting the first output shaft 62 to exceed the speed limit.
In general, the torque of the opposite direction of cartridge type motor 46 rotation of torque fixed direction allocation device 60 is bigger, passes through
The driving torque that torque fixed direction allocation device 60 passes to the first output shaft 62 is bigger.
The effect degree of torque fixed direction allocation device 60 depends on several conditions, and all these conditions can be by installed in vehicle
On Sensor monitoring, and handled by a processor, the control signal of cartridge type motor 46, quilt manipulated with control
The condition of monitoring includes speed, yaw-rate, lateral direction of car and longitudinal acceleration, steering angle, wheel skid rate, engine and speed change
Device operational factor and the temperature of cartridge type motor 46 etc..
Similar, when car enters a left bend, the wheel of vehicle right side and the second output shaft 64 will be more left than in vehicle
The wheel of side and the rotation of the first output shaft 62 are faster.Now, the cartridge type motor 46 of torque fixed direction allocation device 60 should
Control signal is received, rotor 58 and the 4th sun gear 56 thereon is produced the rotation of positive direction.Similarly, now coupling passes
Motivation structure 50 can be such that the first planetary gear 12 and the second planetary gear 14 is produced respectively to the first output shaft 62 or the second output shaft 64
The raw power actuated and the resistance hindered.Therefore driving torque is more shifted on the second output shaft 64, and it is defeated to give second
The higher rotational speed of shaft 64.
In addition, if vehicle is into the poor road surface of wet-skid road surface or some other road conditions, it is necessary to press specific road surface bar
When part is to distribute the torque on the first output shaft 62 and the second output shaft 64, the hollow of torque fixed direction allocation device 60 can also be allowed
Shaft type motor 46 receives electric signal, is made according to the torque that road conditions condition is actively distributed on the first output shaft 62 and the second output shaft 64
The traveling that vehicle can be stablized.
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, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (6)
- A kind of 1. electronic active spur gear differential mechanism for possessing torque fixed direction allocation function, it is characterised in that including：Motor, it has the motor output shaft of exportable torque；Main differential mechanism, it includes drive shaft, transmission device, the first output shaft and the second output shaft that can be rotated about the axis, described Drive shaft will drive first output shaft and the second output shaft in the same direction with identical or different rotating speed by transmission device Rotation；Coupling transmission device, it includes the first planetary gear train and the second planetary gear train, second planetary gear train and the motor Export axis connection, receive the torque of motor output shaft output, and export another torque, first planetary gear train with it is described Second planetary gear train connects, and receives the torque of the second planetary gear train output, and first planetary gear train fills with the transmission Connection is put, torque in opposite direction is provided for first output shaft and the second output shaft；First planetary gear train includes the 3rd sun gear, the third line star-wheel, fourth line star-wheel and the first gear ring, and the described 3rd too The relative ground of sun wheel is fixed, and the 3rd sun gear and the third line star-wheel, fourth line star-wheel and the first gear ring engage successively, described Fourth line star-wheel is rotatably connected with the second planet carrier, and the third line carrier is rotatably connected with the third line star-wheel, with The revolution of the third line star-wheel is set to be exported by the third line carrier.
- 2. the electronic active spur gear differential mechanism according to claim 1 for possessing torque fixed direction allocation function, its feature exist In the transmission device includes:First sun gear, it is fixedly and coaxially connected with first output shaft, to be rotated jointly with first output shaft；Second sun gear, it is fixedly and coaxially connected with second output shaft, to be rotated jointly with second output shaft；First planetary gear, it is engaged with first sun gear；Second planetary gear, it is engaged with second sun gear；First planet carrier, it is rotatably connected with first planetary gear；Second planet carrier, it is also rotatably connected with second planetary gear, and second planet carrier is fourth line star-wheel Shared with the second planetary gear；Differential carrier, it is rotatably connected with first planet carrier and the second planet carrier, and the drive shaft passes through a pair of meshing Gear drive the differential carrier to rotate so that first planetary gear and the second planetary gear are rotating around first sun gear Revolved round the sun with the second sun gear.
- 3. the electronic active spur gear differential mechanism according to claim 2 for possessing torque fixed direction allocation function, its feature exist In second planetary gear train includes the 4th sun gear, fifth line star-wheel, the second gear ring, the 4th sun gear and the electricity Machine output shaft is fixedly and coaxially connected, so that the 4th sun gear rotates jointly with the motor output shaft, the fifth line star Wheel is meshed with the 4th sun gear and the second gear ring respectively, and fourth planet is rotatably connected with the fifth line star-wheel Frame, so that the revolution of the fifth line star-wheel is exported by the fourth line carrier, the third line carrier and fourth line carrier Mutually it is fixedly connected, first gear ring is mutually fixedly connected with second gear ring.
- 4. the electronic active spur gear differential mechanism according to claim 3 for possessing torque fixed direction allocation function, its feature exist In the third line carrier and fourth line carrier are integrally formed.
- 5. the electronic active spur gear differential mechanism according to claim 3 for possessing torque fixed direction allocation function, its feature exist In first gear ring is integrally formed with second gear ring.
- 6. a kind of automobile, it is characterised in that including possessing torque fixed direction allocation function as any one of claim 1-5 Electronic active spur gear differential mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072725.6A CN104670010B (en) | 2015-02-11 | 2015-02-11 | A kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072725.6A CN104670010B (en) | 2015-02-11 | 2015-02-11 | A kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104670010A CN104670010A (en) | 2015-06-03 |
| CN104670010B true CN104670010B (en) | 2018-04-03 |
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| DE102015223130B4 (en) * | 2015-11-24 | 2020-02-06 | Schaeffler Technologies AG & Co. KG | Drive device with a differential gear and a torque vectoring unit |
| DE102015223915B4 (en) * | 2015-12-01 | 2018-08-30 | Schaeffler Technologies AG & Co. KG | Bearing assembly for a stepped planet, and hereby equipped planetary gear for a motor vehicle drive unit |
| CN106801736B (en) * | 2017-04-02 | 2023-01-10 | 凌子龙 | Differential mechanism |
| CN106884959B (en) * | 2017-04-21 | 2023-03-31 | 吉林大学 | Electric differential mechanism with torque directional distribution function |
| CN107035847B (en) * | 2017-04-21 | 2023-04-07 | 吉林大学 | Electric differential mechanism with torque directional distribution function |
| CN109423777B (en) * | 2017-08-23 | 2021-07-06 | 拓卡奔马机电科技有限公司 | Cloth-pricking and thread-taking-up mechanism of sewing machine |
| EP3879134B1 (en) * | 2020-03-13 | 2023-11-15 | Volvo Car Corporation | Transmission arrangement with torque vectoring |
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| JP2687052B2 (en) * | 1991-04-19 | 1997-12-08 | 本田技研工業株式会社 | Torque distribution mechanism of differential gear |
| JP2004330973A (en) * | 2003-05-09 | 2004-11-25 | Honda Motor Co Ltd | Vehicular driving force distributing device |
| DE102004024086A1 (en) * | 2004-05-14 | 2005-12-08 | Audi Ag | Drive device for motor vehicles |
| US20060025267A1 (en) * | 2004-07-29 | 2006-02-02 | Mircea Gradu | Differential with torque vectoring capabilities |
| CN201575122U (en) * | 2009-11-27 | 2010-09-08 | 东风汽车有限公司设备制造厂 | Differential mechanism |
| US8663051B2 (en) * | 2010-07-14 | 2014-03-04 | E-Aam Driveline Systems Ab | Axle assembly with torque distribution drive mechanism |
| CN204452026U (en) * | 2015-02-11 | 2015-07-08 | 吉林大学 | A kind of electronic active spur gear diff possessing torque fixed direction allocation function |
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