CN1799893A - Vehicular multifunctional electromagnetic differential system - Google Patents

Vehicular multifunctional electromagnetic differential system Download PDF

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Publication number
CN1799893A
CN1799893A CNA2005101002819A CN200510100281A CN1799893A CN 1799893 A CN1799893 A CN 1799893A CN A2005101002819 A CNA2005101002819 A CN A2005101002819A CN 200510100281 A CN200510100281 A CN 200510100281A CN 1799893 A CN1799893 A CN 1799893A
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rotor
motor
differential system
machine
double
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罗玉涛
黄向东
周斯加
赵克刚
杨荣山
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The invention relates to a multifunctional electromagnetic speed differential system which can be used a drive speed differential integrated system of electric power vehicle and mixed power vehicle, and as a speed baffle used in the driven bridge of traditional vehicle. The invention comprises a dual-rotor motor and a controller. Wherein, the dual-rotor motor is formed by a outer rotor and a inner rotor coiled by excitation winding and; one rotor via connection device is connected to the wheels on one side; another rotor via steering gear and connection device is connected to the wheel on another side; the excitation winding of outer rotor via sliding ring is connected to the controller; and the controller is connected to vehicle power resource. The invention can reduce mechanical transmission to attain high transmission efficiency, smaller size and lighter weight.

Description

A kind of Vehicular multifunctional electromagnetic differential system
Technical field
The present invention relates to power actuated vehicle differential and auxiliary braking field, it specifically is the differential force speed system of various pure electric automobiles, hybrid vehicle, particularly traditional vehicle-mounted propulsion source (driving engine, electrical motor) and diff are assembled a cover multifunction dynamic differential system, the invention still further relates to the auxiliary braking field of vehicle.
Background technology
Present various battery-driven car and hybrid vehicle development are rapidly, but existing a lot of battery-driven car or hybrid vehicle are to increase dynamical element such as electrical motor to form on the driving system basis of original orthodox car, though can utilize the drive technology of original maturation like this, reduce the performance of elec. vehicle performance to a great extent.As shown in Figure 1, traditional open type diff is a representative type compound planet gear structure, comprises planetary gear carrier 1, planetary wheel 2, axle side gear 3.Drive torque is added on the planetary gear carrier 1, and planetary gear carrier 1 is around its axis rotation, if the moment on the axle side gear of the left and right sides equates that then planetary wheel 2 can be around its axis rotation, moment is passed through axle side gear 3 mean allocation to the semiaxis of the left and right sides; If the moment on the axle side gear of the left and right sides is unequal, then planetary wheel 2 is around the rotation of its axis, and left and right sides semiaxis rotating speed is unequal, and the moment of transmission equates, and equates with the minimum drag square received on the semiaxis of the left and right sides.Under a unsettled situation of drive wheel, if transmission shaft is uniform rotation, hesive drive wheel does not have propulsive effort, if transmission shaft is to quicken to rotate, the propulsive effort of hesive drive wheel also only equals the angular acceleration of unsettled wheel and the product of rotor inertia.Therefore, traditional open type diff driving efficiency is low, and off-road capability is relatively poor.
Limited slip differential can be used for part and remedy the transmission defective of open type diff at cross-country road.It is improved in the mechanism of open type diff, increases friction lining between differential gear box and side gear, and the power that the additional torque that Limited slip differential provides and friction lining transmit is relevant with the speed discrepancy of two drive wheels.But Limited slip differential make the cornering properties variation of vehicle and the sliding coefficient of limit big more turn to difficult more, simultaneously the friction lining life-span limited, structure is complicated.
Locking differential comprises mechanical locking and electronic locking, and is locked diff by certain structure in order to guarantee the rideability of vehicle under the cross-country road conditions of complexity, maybe the wheel locking that skids can be realized the power transmission of maximal efficiency.The machinery locking differential is under the situation of locking, and transmitting ratio is fixed to 1: 1, though this diff can provide maximum propulsive effort at cross-country road, its shortcoming is that Vehicular turn is extremely difficult under the situation of diff locking; The possibility that exists single wheel to bear the moment of torsion of driving engine 100%, semiaxis can be out of shape because moment of torsion is excessive or fracture; Vehicle is in the process that turns to, and two-semiaxle bears opposite moment of torsion, if the both sides adhesion of tyres is all very big, can twist off semiaxis.This in addition diff is carried out the locking action and can be produced bigger noise in the vehicle ' process.
E-Diff lock and above-mentioned several comparing, do not change the structure and the characteristic of open type diff, but utilize anti-skid brake system (ABS) or EBD (Electric Brakeforce Distribution) (EBD) system to carry out the action of the wheel of one-sided brake slip, limit the speed discrepancy of two drive wheels, guarantee that two drive wheels are all dynamic.This system safety is better, can not damage vehicle.But need equipment ABS and EBD system, involve great expense and under harsh cross-country environment, the reliability of electronic product is not as engineering goods, and the propulsive effort of one-sided wheel, big not as locking differential.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of differential transmission systems that efficiently, simply integrates driving, differential function that is suitable for various traditional combustion engine automobiles, pure electric vehicle, hybrid vehicle is provided, not only solved the driving efficiency problem that above-mentioned traditional diff applies to the motor-driven vehicle, and can also use as the retarder of common vehicle through simple adjustment.
Purpose of the present invention is achieved through the following technical solutions:
A kind of Vehicular multifunctional electromagnetic differential system is characterized in that, described electromagnetic differential system comprises double-rotor machine, controller, power bus; Outer rotor that described double-rotor machine is twined by excitation winding and internal rotor cooperate and constitute, and a rotor is connected with single wheel by connecting device in described outer rotor and the internal rotor, and another rotor is connected with the opposite side wheel by connecting device; Excitation winding on the described outer rotor is connected with controller by slip ring mechanism, and controller also is connected with power bus.
For further realizing purpose of the present invention: the preferred left and right sides of described connecting device constant-velocity universal joint.Magnet stopper is preferably installed in both sides on the output shaft of outer rotor and internal rotor.Described Vehicular multifunctional electromagnetic differential system also comprises accumulator, and accumulator is connected with power bus.The combination of described vehicular energy memory device preferred battery group or super capacitor or battery pack and super capacitor.Described double-rotor machine preferably adopts permanent magnet DC motor, series DC machine to obtain compositely excited DC machine; According to such technology general knowledge, by changing the shape and the structure of current colector, described double-rotor machine is preferred alternating current dynamo also.Arbitrary rotor preferably is connected with connecting device by the reversing gear connection in the described double-rotor machine, so that the rotation in the same way of both sides wheel.
Principle of the present invention:
When the present invention works on various battery-driven cars, the differential principle of work of its main driving be utilized double-rotor machine to changeing the traction principle.Utilize application force and antagonistic force to be equal to shared principle to changeing the traction spinner motor, make this motor subsystem motion change separately of can two of simultaneous adaptations working, thereby in native system, play the driving differential action.In the primary mover, the power that conversion process of energy forms produces in pairs in the mode of application force and antagonistic force symbiosis.Between application force and the antagonistic force except that action direction on the contrary, the various features of power are all identical with fundamental property.For hybrid vehicle, owing to the electric energy accumulator is equipped with, as battery, super capacitor etc.When vehicle need drive, the energy of accumulator can allow double-rotor machine that extra propulsive effort is provided by power bus and controller, be beneficial to improve the dynamic property of vehicle, and the control by control policy, with the driving engine co-ordination, realize energy-conservation and reduce discharging.When car brakeing, double-rotor machine is operated in power generation mode, and the mechanical energy of vehicle inertia is transformed into electric energy, is stored in the accumulator.Therefore, the double-rotor machine in this patent also has the function of motor simultaneously except that possessing differential function, constitute multi-functional differential system.
Beneficial effect of the present invention:
Differential system of the present invention is made up of double-rotor machine, electric-control system, power bus etc., its characteristics are because double-rotor machine has two output shafts, not only propulsive effort can be provided but also can produce differential effect, function unites two into one, traditional transmission shaft, main reduction gear, diff etc. have been saved, thereby shortened whole power transfer path greatly, improved the efficient of car load.Simultaneously, provide a kind of later-model retarder practical plan, not only simple in structure and have an energy recovery function.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is traditional open type diff scheme drawing.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the double-rotor machine structural representation among Fig. 2.
Fig. 4 is the structural representation of Fig. 2 when being used for conventional truck and using as retarder.
Shown in the figure: 1. planetary gear carrier; 2. planetary wheel; 3. axle side gear; 4. wheel; 5. left and right sides constant-velocity universal joint; 6. differential gear box; 7. excitation winding; 8. slip ring mechanism; 9. power bus; 10. electric machine controller; 11. reversing gear; 12. anti-skidding magnet stopper; 13. sliver; 14. accumulator; 15. double-rotor machine; 16. internal rotor; 17. outer rotor.
The specific embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples, but embodiments of the present invention are not limited thereto.
Embodiment 1
Vehicular multifunctional electromagnetic differential system is used for diff.Motor selects for use the squirrel-cage alternating current asynchronous to changeing the traction double-rotor machine.Be used for hybrid vehicle.
As Fig. 2, apparatus of the present invention are by forming changeing traction double-rotor machine 15, differential gear box 6, reversing gear 11, left and right sides constant-velocity universal joint 5, electric machine controller 10, power bus 9, anti-skidding magnet stopper 12 etc.Outer rotor 17 and internal rotor 16 cooperations that commentaries on classics traction double-rotor machine 15 is twined by excitation winding constitute, and outer rotor 17 is connected with single wheel 4 by connecting device, and internal rotor 16 is connected with opposite side wheel 4 with connecting device by reversing gear 11; Excitation winding 7 on the outer rotor 17 is connected with controller 10 by slip ring mechanism 8, and controller 10 also is connected with power bus 9.Connecting device is a constant-velocity universal joint.
The control policy of native system is done corresponding adjustment by the difference of battery-driven car of equipping or hybrid vehicle control policy, control signal is imported into by the external world in the electric machine controller 10 of native system, and controller 10 produces corresponding action control double-rotor machine 15 kinematic parameters.Generally speaking, the internal rotor 16 of motor rotates to two different directions with unofficial biography 17, and outer rotor 17 directly drives constant-velocity universal joint 5 and rotates, and is connected with constant-velocity universal joint 5 after internal rotor 16 connects reversing gear 11 again.Reversing gear plays the direction of variation by the torque of internal rotor 16 outputs, makes two wheels that identical sense of motion be arranged.In the motor-driven vehicle, power bus 9 is to motor 15 power supplies, and when braking energy reclaimed, motor 15 sent to power bus conversely.
As shown in Figure 3, introduce the excitation winding 7 on the outer rotor 17 and constitute C/LOOP through lead and carbon brush, slip ring mechanism 8 by the electric current of electric machine controller 10 outputs.Based on the same mechanism of common squirrel-cage AC induction motor, the alternating current that flows into this motor excitation winding produces rotating field, causes the sliver 13 interior induced potentials that produce of internal rotor 16 windings.Because of sliver 13 current hysteresis after-potentials, the mutual action of excitation winding 7 and 16 generations of internal rotor constitutes electromagnetic torque, and carries out transformation of energy.Because when the air-gap field of transmission electromagnetic power constituted electromagnetic forcees to internal rotor 16, excitation winding 7 parts also bore counter-force simultaneously, so the electromagnetic torque that the electromagnetic force of this a pair of action and reaction constitutes is equivalent oppositely directed two torques.And the mechanical mechanism of this motor 15 has two mechanism freedoms, so act on internal rotor 16 and the excitation winding 7 equivalent oppositely directed two electromagnetic torques respectively inside and outside two rotors that internal rotor 16 and excitation winding 7 form respectively 16,17 is turned round simultaneously along reciprocal direction.When two rotors, 16,17 speeds discrepancy surpass setting value, the magnet stopper 12 of the very fast side of rotating speed will move, the speed discrepancy of control both sides.From conservation of angular momentum principle, also must be oppositely equivalent to the electromagnetic torque that the internal rotor and the outer rotor of commentaries on classics traction double-rotor machine are exported respectively.
Electromagnetic torque for the non-salient pole alternating current dynamo is: T m = p ∂ W m ∂ θ ST
In the formula: T mBe electromagnetic torque; P is a number of pole-pairs; W mBe that the interior magnetic of air gap altogether can; θ STBe the angle between excitation winding magnetic potential axis and internal rotor rotor magnetic potential axis.
Can draw: T → md ≡ - T → mj
And in the common electric machine, with the corresponding antagonistic force of electromagnetic force that drives the internal rotor running, the counter-force that the base frame by equipment produces is offset and is not done work, and the double-rotor machine in the native system then utilizes the drive wheels running of doing work jointly of application force and antagonistic force.Rotating field kinematic velocity-electromagnetism rotation speed n s, be the amount of determining for the numerical value of frame of reference with respect to excitation winding 7.Can see that this excitation winding 7 same frame of reference greatly to commentaries on classics traction double-rotor machine 15 relatively rotate.For common AC asynchronous motor, slip n refers to the electromagnetism rotation speed n sPoor with internal rotor rotor speed n:
Δn＝n s-n
According to the relativism of motion, when opposite, internal rotor 16 rotating speeds of motor are n to the direction vector of the excitation winding 7 of changeing traction double-rotor machine 15 and rotating field rotation d=n-n jWhen excitation winding 7 maintained static, internal rotor 16 rotating speeds of motor were n d=n; And it is identical with the direction vector that rotating field rotates to work as excitation winding 7, and the internal rotor rotating speed of motor then is n d=n+n jThe excitation winding of common electric machine belongs to stator component, so n j=0, so common electric machine is a kind of extraordinary circumstances of double-rotor machine 15 when excitation winding 7 is fixed.
The described system of present embodiment has made up two former moving assemblies to changeing traction double-rotor machine 15, so under the conventional state of general normal traction load, the rotating speed that this motor rotation constitutes is characterized as: n=n d+ n j
In fact rotation speed n is exactly internal rotor 16 with the excitation winding 7 of motion is the rotating speed of frame of reference, and when excitation winding rotating speed when being zero, rotation speed n is exactly the rotating speed of internal rotor in common electric machine.To changeing in the traction double-rotor machine 15, rotation speed n is called relative rotation speed.In operational process, technical parameters such as the electric current of motor, electromagnetic torque are not subjected to n d, n jThe influence that changes, but arbitrary subtle change of relative rotation speed n have then all constituted technical parameters such as the electric current of motor and electromagnetic torque and have changed.Therefore, the variation of a series of technical parameters such as electric current of changeing traction double-rotor machine 15 is all only set up corresponding relation by the variation of this motor relative rotation speed one by one.The actual speed of two rotors of this motor then be with its sum or the algebraic value form and the relative rotation speed of difference set up reciprocity variation relation.The principle of the diff that uses on this and the conventional truck is very similar.
Two rotor output characteristic of changeing traction double-rotor machine 15 are had:
T md+T mj＝2T m n＝n d+n j
When to 15 runnings of commentaries on classics traction double-rotor machine the time, on two rotors of electrical motor, produce onesize and moment that direction is opposite, so two rotors of motor turn round in the opposite direction.By being installed in the reversing gear 11 of the outer any side of two rotors of motor, finally the both sides semiaxis that drives respectively by two rotors of motor to same direction with identical moment of torsion horsepower output.
Motion analysis:
If ω WlAngular velocity omega for left side wheel WrCireular frequency for right side wheels
ω AlThe angular velocity omega of left side constant-velocity universal joint ArThe cireular frequency of right side constant-velocity universal joint
ω dThe angular velocity omega of internal rotor rotor zExcitation winding rotor velocity ω gThe cireular frequency of reversing gear
J WlThe rotor inertia J of left side wheel WrThe rotor inertia of right side wheels
J AlThe rotor inertia J of left side constant-velocity universal joint ArThe rotor inertia of right side constant-velocity universal joint
J dThe rotor inertia J of internal rotor rotor zExcitation winding rotor moment of inertia J gThe reversing gear rotor inertia
In the time of the vehicle straight-line travelling, left side wheel 4 be connected with the outer rotor 17 that excitation winding 7 cooperates with double-rotor machine 15 again after left side constant-velocity universal joint 5 is connected, so the rotating speed of these three parts equates to have: ω Wl=ω Al=ω dAnd right side wheels 4 be connected with reversing gear 5 after right side constant-velocity universal joint 4 is connected, 11 be connected with the rotor portion that internal rotor links to each other with double-rotor machine 15 backward by turns through commutating tooth, have identical rotating speed: ω Wr=ω Ar=ω g=ω zBecause the reversing gear transmitting ratio is 1: 1,, do not change the size of stator output torque just with the change that turns at two ends.
In the above motion process, about the moment when not having angular acceleration, exported of two wheels be identical, direction is identical, but when electrical motor quickened or runs slowly, the rotor inertia of (left side constant-velocity universal joint 5 with left side wheel 4 etc.) right side (reversing gear 11, right side constant-velocity universal joint 3, right side wheels 4 etc.) was not necessarily identical promptly because 15 two rotors of motor 16,17 and the part that links to each other thereof:
Figure A20051010028100071
Can cause the acceleration or the deceleration disunity of left and right wheels like this, influence riding stability.For addressing this problem, can select size and the weight of suitably selecting reversing gear 11 for use for use.Because to the rotor inertia of the excitation winding part 7 bonded assembly outer rotors 17 that change traction double-rotor machine 17 rotor inertia greater than internal rotor part rotor 16, and the rotor inertia of left and right sides constant-velocity universal joint 11 and wheel 4 is equal substantially, so the size that only need suitably select reversing gear 11 for use and weight just can be so that following formula become immediately:
J wl+J al+J d＝J z+J g+J wr+J ar
Above-mentioned working process is the service condition of vehicle under the straight-line travelling state, the present invention has driving and two kinds of functions of differential, the relative motion of two rotors produces when driving function by motor rotation, and differential function can be drawn by the output characteristic of the double-rotor machine of talking about previously.
For common differential speed gears such as open type diff, as shown in Figure 1, the rotating speed of planetary gear carrier 1, left and right sides axle side gear 3 is used n respectively p, n Hl, n HrExpression.In diff, three rotation speed n p, n Hl, n HrFollowing relation: 2n is arranged p=n Hl+ n HrWherein had only the wherein value of two rotating speeds given, the value of another rotating speed could be determined.And in the present embodiment to n in three rotating speeds that change the traction double-rotor machine, n d, n jAlso only known the wherein value of two rotating speeds, the value of a rotating speed of residue just can be determined.And for common open type diff, the moment T that distributes on two axle side gears Hl, T HrT is arranged Hl=T Hr, in the present invention, two rotor output torques of double-rotor machine have: T Md=-T Mj, similar T is also arranged because the existence of reversing gear outputs to the moment of left and right sides semiaxis at last Hl=T HrBecause the special kinematics characteristic of double-rotor machine that present embodiment adopts is so native system self just possesses the differential function that differential gear train is arranged.
In order to improve the carrying capacity of automobile on bad road surface, when touching mire or ice and snow road as a drive wheel of automobile, trackslip in the wheel original place on muddy road surface, and in good ground-surface wheel transfixion.This is because very little at wheel on the muddy road surface and the adhesive ability between the road surface, the road surface can only be very little to the semiaxis effect the moment of reaction, though another wheel and good ground-surface adhesive ability are very big, but because two characteristics that the rotor output torque is identical in the motor, the torque that the torque that makes wheel on good road surface be assigned to can only obtain with the drive wheel that generation is trackslipped equates, cause total tractive force to be not enough to overcome resistance to motion, automobile can not move.In order to address the above problem, on 15 two rotor of output shaft axle of motor, magnet stopper 12 has been installed all, (the drive wheel wheel speed of the maximum that calculates about the turn radius 5m according to general automobile is poor greater than 40% when the difference of the absolute rotating speed of electrical motor two output shafts, the different model vehicle parameter is set different) time, magnet stopper will be worked, with rotating speed faster output shaft embrace, increasing its moment of reaction, improve the output torque of the slower output shaft of rotating speed.
Embodiment 2
Vehicular multifunctional electromagnetic differential system is used for diff.Selecting permanent magnet DC motor for use is to changeing the traction double-rotor machine.Be used for internal-combustion engines vehicle.
Compare with embodiment 1, replace excitation winding with permanent magnet changeing the traction double-rotor permanent magnet direct current motor, as the source, stationary magnetic field, like this can be so that the volume of motor, weight, loss and heating etc. improve, and also it is simple in structure, also is convenient to processing.The used permanent-magnet material kind of motor is more, and as general-duty ferrite, aluminium nickel brill, rare earth permanent magnet, bonded permanent magnet etc., present embodiment is a ferrite.The shape of permanent-magnet material generally also has annular, watt shape, fan-shaped, square etc., and present embodiment is a watt shape.According to the internal-combustion engines vehicle performance demands, select promising 4 utmost points of magnetic pole.The conventional DC controller is adopted in control to this motor.The structure of present embodiment differential system and principle of work are with embodiment 1.
Embodiment 3
Vehicular multifunctional electromagnetic differential system is used for diff.Selecting series-wound DC motor for use is to changeing the traction double-rotor machine.Be used for pure electric vehicle.
Series-wound DC motor has that rotating speed height, volume are little, in light weight, speed governing characteristics easily, thus in a lot of power tools as propulsion source.Double-rotor machine in the native system also can be selected the motor of this type for use.But series-wound electric motor is prone to stall and the armature temperature is sharply raise.So when using series-wound electric motor, will on build guality, propose, and use rational control policy and safety precautions than higher requirement.The conventional DC controller is adopted in control to this motor.The structure of system and principle of work are with embodiment 1.
Embodiment 4
Vehicular multifunctional electromagnetic differential system is used for diff.Selecting compositely excited DC machine for use is to changeing the traction double-rotor machine.Be used for hybrid vehicle.
Compositely excited DC machine and series-wound electric motor performance characteristic are more approaching, just change the excitation winding connection mode between rotor.System architecture and principle of work are with embodiment 1.
For top 4 embodiment, no matter select the double-rotor machine of which kind of type for use, no matter be used for which kind of automobile, just changed the connection mode of motor internal, select suitable control policy and controller for use, can reach same output effect.
Embodiment 5
Vehicular multifunctional electromagnetic differential system is used for conventional truck as retarder.This system is installed in general-utility car axle drive shaft (this system also can be installed in nonpowered axle).
As shown in Figure 4, when cruising, double-rotor machine excitation winding 7 and no power, though internal rotor 16 and excitation winding 7 have relative motion, because motor at open-circuit condition, does not have the existence of excitation field, do not hinder mutually between two rotors 16,17 in moment existence, independent operation separately.In the time will slowing down, excitation winding 7 coil electricities, excitation field produces, thus the motion that the magnetic field interaction of the magnetic field of internal rotor 16 and excitation winding 7 is held reaches slow purpose.The motor of this moment is actually an electrical generator, and the electric energy that is converted to by mechanical energy feeds back to vehicle-mounted accumulator 14 through controller 10.The present embodiment accumulator adopts battery pack.According to the general knowledge of such technology, also has same effect as the combination of adopting super capacitor or battery pack and super capacitor.
Mode of operation: mainly contain two kinds of mode of operations:
(1) drive pattern.When automobile will advance or retreat (motor antiport), by vehicle-mounted accumulator 14 power supplies, via controller 10 was regulated back input motor 15.Controller 10 can be monitored the accelerator open degree signal simultaneously, brake signal, vehicle speed signal, working state signal and battery SOC state etc.Controller 10 receives behind above these signals the purpose that arrives control motor output speed and torque by physical quantitys such as the electric current of control input double-rotor machine 15 and voltages this moment.
(2) regenerative brake pattern.When vehicle will slow down or brake, controller 10 passed through the accelerator open degree signal, and the judgement of brake signal is to select suitable brake torque.At this moment, kinetic energy is converted to electric energy after passing to two rotors 16,17 of motor 15 from wheel 4, by the adjusting of controller 10, electric energy is fed back in the accumulator 14 by power bus 9 again.If the requirement of brake torque out of reach brake signal, controller 10 will be made judgement and send instruction, brake jointly by former mechanical oil-pressure brake system and two systems of electrical motor energy feedback.

Claims (8)

1, a kind of Vehicular multifunctional electromagnetic differential system is characterized in that, described electromagnetic differential system comprises double-rotor machine, controller, power bus; Outer rotor that described double-rotor machine is twined by excitation winding and internal rotor cooperate and constitute, and a rotor is connected with single wheel by connecting device in described outer rotor and the internal rotor, and another rotor is connected with the opposite side wheel by connecting device; Excitation winding on the described outer rotor is connected with controller by slip ring mechanism, and controller also is connected with power bus.
According to the described Vehicular multifunctional electromagnetic differential system of claim 1, it is characterized in that 2, described double-rotor machine is permanent magnet DC motor, series DC machine, compositely excited DC machine or alternating-current motor/AC motor.
According to described kind of Vehicular multifunctional electromagnetic differential system of claim 2, it is characterized in that 3, described alternating-current motor/AC motor is that the squirrel-cage alternating current asynchronous is to changeing the traction double-rotor machine.
According to the described Vehicular multifunctional electromagnetic differential system of claim 1, it is characterized in that 4, both sides are equipped with magnet stopper on the output shaft of described outer rotor and internal rotor.
According to the described Vehicular multifunctional electromagnetic differential system of claim 1, it is characterized in that 5, described system also comprises accumulator, described accumulator is connected with power bus.
According to the described Vehicular multifunctional electromagnetic differential system of claim 5, it is characterized in that 6, described accumulator is the combination of battery pack or super capacitor or battery pack and super capacitor.
According to the described Vehicular multifunctional electromagnetic differential system of claim 1, it is characterized in that 7, described connecting device is a left and right sides constant-velocity universal joint.
According to the described Vehicular multifunctional electromagnetic differential system of claim 1, it is characterized in that 8, arbitrary rotor is connected with reversing gear in the described double-rotor machine, reversing gear also is connected with connecting device.
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CN102136785A (en) * 2011-03-28 2011-07-27 罗丙伍 Environment-friendly high-efficiency energy-saving generator
CN103192694A (en) * 2012-01-10 2013-07-10 沃尔沃汽车公司 Motor vehicle drive unit
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CN103148125A (en) * 2013-03-25 2013-06-12 沈锡鹤 Magneto-rheological power braking device
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CN112389275A (en) * 2020-11-16 2021-02-23 睿驰电装(大连)电动系统有限公司 Safety control method and device based on electric drive active heating mode
CN112693583A (en) * 2020-12-18 2021-04-23 浙江科技学院 Single-motor-driven full-freedom underwater micro unmanned aerial vehicle
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