CN204605503U - A kind of hub system of battery-driven car and battery-driven car thereof - Google Patents

Abstract

The hub system of a kind of battery-driven car of the utility model comprises electric hub device, battery pack and increasing journey system; Described electric hub device comprises power supply modulator, deceleration/torque changing apparatus, wheel hub, driving actuation means and at least a set of electric device; Described electric device comprise coaxially turn, at least one stator unit and some rotor units; Described coaxially turning is an annular machinery circle with turning cylinder; Described rotor unit comprises at least one permanent magnet rotor unit and at least one magnetizer rotor unit, on it is arranged at and coaxially turns; Described stator unit is arranged on coaxially turns interior and is not more than 40mm with its air gap; Described coaxially turning coaxially is arranged with wheel hub, and electric device and deceleration/torque changing apparatus are all arranged in wheel hub; Described increasing journey system comprises logic charging unit and electric energy supplementary device, the input end electrical connection electric energy supplementary device of logic charging unit, its mouth electrical connection battery pack.

Description

A kind of hub system of battery-driven car and battery-driven car thereof

Technical field

The utility model relates to the mains power design field of Electrical Bicycle, the increasing journey method of designing of particularly a kind of driving of electric device of sequential current control, braking method and supporting battery-driven car thereof.

Background technology

The domestic Electrical Bicycle market mainstream is adapted electric drive wheel, this kind of electric drive wheel is actual is tradition is arranged on axle electrical motor distortion in wheel hub, rotor extending design be by mechanical device transmission of torque to rim.Strict, narrow sense wheel hub refers to the part such as flange, bearing seat be connected with transmission shaft, and the current demestic user wheel rim that refers to, the wheel hub described in this specification sheets contains wheel hub and wheel rim two parts of narrow sense more.

Wheel hub motor technology is also known as wheel inner electric machine technology, and power, transmission and brake equipment are all incorporated in wheel hub by its maximum feature exactly, and it is new things not, and as far back as 1900, first Porsche just produced the electronlmobil of front-wheel equipment wheel hub motor.The electric drive wheel that current electric automobile market main flow uses, its structure is except hub body, major part generally comprises wheel hub motor, brake disc, brake callipers, Active Suspensions motor, suspension, damping spring etc., weight designs far beyond traditional hub body, only weigh with power density index of unit volume, existing utilization conventional art manufactures and designs wheel hub electric motor and also has longer road to walk.

Current battery-driven car market generally believes that motor technology is full-fledged, and for the motor of battery-driven car design specialized is very little, competition mainly concentrates on the control of material and human cost.The permanent-magnet brushless DC electric machine of fast development in recent years, form primarily of motor body, position detector and power inverter controller, general structure is that permanent magnet is arranged on rotor, the arrangement of magnetic pole N/S interleaved, some windings are arranged on stator, position detector forms electronic commutator and replaces mechanical contact reversing arrangement together with inverter controller, and winding energising forms rotating field and rotor is rotated; The obvious problem of this conventional design is the degree of approximation control of deformed sine wave, although its power is powered adopt the modulation of PWQ technology, control thought method is still limited to the traditional design of motor interior rotating field.

Mileages of continuation is short is the weakness of present stage battery-driven car, industry generally believes before high energy battery enters commercialization, mileages of continuation by increasing number of batteries lifting battery-driven car is unrealistic, therefore automotive market main flow is development oil, electric double source hybrid vehicle at present, its design philosophy is: the power using electrical motor when vehicle starting or low speed, automobile is transformed to when reaching certain speed threshold and uses the power of combustion engine, thus reduce automobile start to walk or low speed time the exhaust pollution that not exclusively causes at combustion in IC engine because of fuel oil; Its technical foundation architectural feature is: Fuel Tank 19 provides fuel outputting power to internal combustion engine system 20; The parallel electric motor system 21 increasing a set of electrical connection battery pack 8 on this traditional design basis, electrical motor provides electric energy outputting power by battery pack; Two-way power by oil, electric power conversion device 22 shares machine driven system 23, by the transmission of power of combustion engine or electrical motor on wheel hub, the design of this kind of double-source dynamic can be referred to as oil, Electronmotive Force parallel system, and the signal of its basic design is as shown in Figure 1.

Utility model content

The purpose of this utility model, be the defect overcoming existing battery-driven car institute adapted wheel hub electric motor, a kind of structure is provided to be different from traditional design, electric hub device by sequential current control, a kind of range-extending technique scheme based on battery-driven car electric energy supplement is under steam provided simultaneously, structure is simple, torque is large, and technique easily realizes.

The hub system of a kind of battery-driven car that the utility model provides, described hub system comprises electric hub device 13, battery pack 8 and increases journey system 16; Described electric hub device comprises power supply modulator 1, deceleration/torque changing apparatus 2, wheel hub 6, drives actuation means 9a and electric device 3; Described power supply modulator comprises power input 1a, sequential current output terminal 1b and driving signal input 1d, the both positive and negative polarity of described power input electrical connection battery pack 8; Described electric device comprises the 3e that coaxially turns, at least one stator unit 3a and some rotor unit 3b; Described coaxially turning is an annular machinery circle with turning cylinder; Described rotor unit comprises at least one permanent magnet rotor unit 3b1 and at least one magnetizer rotor unit 3b2, it is alternate be arranged at and coaxially turn on, and with rotation of coaxially turning; Described stator unit is arranged on the fixed position near coaxial rotating inner edge, and stator unit is not more than 40mm with the relative air gap 3d formed that coaxially turns; Described coaxially turning coaxially is arranged with wheel hub, and electric device and deceleration/torque changing apparatus are all arranged in wheel hub, at least arrange a set of electric device in wheel hub;

Described battery pack 8 is the secondary battery used that can repeatedly charge;

The inside winding of the sequential current output terminal electrical connection stator unit of described power supply modulator, driving signal input electrical connection drives actuation means; Described power supply modulator obtains the driving instruction of user by driving actuation means, and in the inside winding output current of corresponding time sequence to stator unit, makes electric device realize driving/braking by deceleration/torque changing apparatus to wheel hub.

Design is replaced each other in the position that the stator unit 3a/ rotor unit 3b of described electric device 3 can turn at confronting coaxial, coordinates relevant apparatus design also can obtain motorized effect.

Preferably, the rating horsepower of electric hub device described in the utility model is no more than 25KW.

Preferably, the wheel hub inside of described electric hub device at least arranges a set of electric device.

Described rotor unit 3b (comprising permanent magnet rotor unit 3b1 and magnetizer rotor unit 3b2) is alternate be arranged at coaxially turn on comprise and be entrenched in its outer rim, inner edge or inner and carry out integrated design manufacture with coaxially turning; Rotor unit does not limit shape not affecting under the prerequisite being installed on and coaxially turning; The alternate setting when coaxially turning installation of several rotor units, preferably evenly arrangement.

Preferably, described permanent magnet rotor unit 3b1 several on the 3e that coaxially turns homopolarity to setting, comprise N/S the two poles of the earth line to overlap with 6 coaxial normals 10 of turning/vertical 4 kinds of typical combination states, and line deflection in N/S the two poles of the earth is no more than 15 degree of angles on 4 kinds of typical combination state bases.

Preferably, the deceleration/torque changing apparatus 2 of described electric hub device 13 forms for some gear combination, its drive input and 3e mechanical attachment of coaxially turning, its transmission output and wheel hub 6 mechanical attachment; Deceleration/torque changing apparatus can independently be arranged, or with coaxially turn or wheel hub integrated setting.

Preferably, described deceleration/torque changing apparatus 2 is arranged at coaxially turns between 3e and wheel hub 6, and coaxially to arrange with wheel hub with coaxially turning.

Preferably, described stator unit 3a is formed around the magnetic core of magnetic media material by least one group of good conductor loop, and its Inside coil winding can connect by series, parallel arbitrarily, or by drawing the multi-thread external loop of centre tap composition between different winding; The mode of external electrical connection can be the loop of two lines or multi-thread formation; The arrangement state of the electromagnetic pole corresponding permanent magnet rotor unit 3b1 that stator unit energising is formed is set to contrary with its motion polarity in opposite directions.

Described stator unit 3a around core arrangement or several combinations, it is preferred for obtaining maxim with its inner winding energising through the magnetic flow of air gap 3d.

Preferably, described electric device 3 also comprises sensing device, and described sensing device comprises some sensing unit 3c that can respond to described rotor unit 3b and stator unit 3a relative position; Described sensing unit is electrically connected with the transducing signal input end 1c of described power supply modulator; Described electric hub device is at least at the inside of coaxially turning or outer setting one sensing unit;

Preferably, described sensing device also comprises the inside winding of stator unit, and described inner winding comprises the multi-thread external loop around being in series between the winding of stator unit magnetic core and some stator unit windings.

Preferably, described electric hub device 13 also comprises electro-magnetic braking device 9b, described power supply modulator 1 also comprises speed-slackening signal input end 1e, it is electrically connected electro-magnetic braking device, by electro-magnetic braking device obtain user brake instruction and in the winding output current of corresponding time sequence to the stator unit of electric device.

Described driving actuation means 9a can be set to conventional rotating handles formula, plug-type joystick or other any manual control modes, is set to remote control outside comprising.

In the utility model, direct supply is converted to sequential electric current by described power supply modulator 1, and the stator unit in electric device is energized and power-off with being limited at the time domain periodic of power supply modulator setting.

The increasing journey system 16 of hub system described in the utility model comprises logic charging unit 17 and electric energy supplementary device 18; The input end 17a of described logic charging unit is electrically connected electric energy supplementary device, and its mouth 17b is electrically connected the both positive and negative polarity of battery pack 8; Described increasing journey system is battery pack electric energy supplement in the logic working state of setting.

Preferably, the electric energy supplementary device 18 of described increasing journey system 16 combines for the arbitrary primary battery of material and control setup, and described control setup at least comprises primary battery starter gear;

Preferably, the electric energy supplementary device 18 of described increasing journey system 16 combines for internal combustion engine generator and control system device; Described internal combustion engine generator at least comprises combustion engine and electrical generator, and described control system device at least comprises Fuel Tank 19 and startor of internal combustion engine; The fuel of described combustion engine is any;

Preferred, the electric energy supplementary device 18 of described increasing journey system 16 combines setting by primary battery and control setup, internal combustion engine generator and system and device and forms.

The logic charging unit 17 of described increasing journey system 16 at least comprises charged with direct current device, can independently arrange, or is integrated in power supply modulator 1 by its partial logic function or whole logic function; The design of described logic charging unit, also can have the control setup of primary battery concurrently or/and the function of circuit control device of electrical generator.

In the utility model, the described battery-driven car containing above-mentioned arbitrary hub system comprises the battery-driven car of one or more wheel and electronic, autocycle; The wheel of described battery-driven car comprises the accurate single-wheel structure of single-wheel and coaxial compact installation two wheel hubs.

The invention also discloses a kind of electric hub device driving method of aforementioned hub system, the method, according to the position relationship of described rotor unit 3a and described stator unit 3b, is coaxially turned and hub rotation by power supply modulator output timing current control;

Described sequential is according to coaxially turning hand of rotation and defining, described sequential electric current combines the rotor unit number on coaxially turning according to the useful effect interval of stator unit electromagnetic field on coaxially turning and arranges several make and break periods T, and each make and break period T comprises power supply time domain and power-off time domain; Described power supply time domain is positioned at the corresponding time period, described in the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, described in for rotor unit overlaps determined around axle tangential direction with electromagnetic force direction suffered by it value; Power supply modulator 1 not outgoing current in described power-off time domain.

Preferably, the electric current of described power supply time domain not notch shape, frequency and dutycycle.

Preferably, described energising time domain T ₁in the magnetic flux density of initial electric current, voltage or stator unit obtain by sensing device rotating speed instantaneous value of coaxially turning and combine the instruction that drives actuation means 9a to provide and adjust.

Preferably, described method also comprises aligning step; Described aligning step be by stator unit and rotor unit periodically relative, the state that is in same normal of trapping gap ( be 0) as benchmark coordinate and fiducial time, when rotor unit goes to reference seat timestamp at every turn, power supply modulator carries out a time and returns 0 calibration and record this period, compare period by going to reference seat target with rotor unit last time, thus know and coaxially turn and the spin cycle time of wheel hub, and control outgoing current.

The invention also discloses the electric hub device braking method of described hub system, the method, according to described rotor unit convergence stator unit, rotor unit relative with the same normal in stator unit place (φ is 0) and in being in away from state at least one time domain, makes power supply modulator 1 output timing current control coaxially turn and wheel hub braking by manipulation electro-magnetic braking device 9b;

Described sequential defines according to rotation of wheel direction; Described rotor unit convergence stator unit is the corresponding time period of state, described in the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, described in for rotor unit overlaps determined around axle tangential direction with electromagnetic force direction suffered by it value.

Preferably, described method also comprises aligning step, and described aligning step will be 0 as benchmark coordinate and fiducial time, know rotor unit convergence/relatively/away from the location status of stator unit by sensing device.

The logical relation of described power supply modulator to the driving of electric device energising and braking energising be set to or.

Preferably, described outgoing current rate-determining steps comprises:

1) when driving actuation means 9 pairs of power supply modulators 1 without input instruction, power supply modulator dormancy;

2) when driving actuation means 9 to provide assisted instruction, power supply modulator 1 output timing electric current;

3) when electric device rotating speed or energising frequency reach the threshold value of setting, described power supply modulator power-off.

The invention also discloses the electric power replenishing method of the hub system of described battery-driven car, the method needs for battery pack 8 continues electric energy supplement in electric hub device 13 runs, or when the real-time voltage of battery pack or remaining capacity value are lower than set threshold values, enable and increase journey system 16, make electric energy supplementary device 18 be batteries charging electric energy supplement by logic charging unit 17.

The utility model implants Technology of NC Programming for the feature of electric hub device, makes it to be limited at setting time domain energising work, has both saved electric energy and has additionally reduced accumulated heat; Described electric hub device is applied to battery-driven car can use primary battery or secondary battery, described primary battery comprises the battery of all disposable electric discharges and various fuel cell, and such as zinc-air battery, aluminium-air cell and hydrogen converting electrical energy etc. can provide the device of disposable electric energy; Described secondary battery is rechargeable battery after comprising all electric discharges, such as lithium cell, lead battery, metal hydrogen storage battery etc.In view of the energy storage density of current battery-driven car market institute adapted secondary battery is lower, the utility model devises the increasing journey system being intended to electric energy and supplementing for this state of the art, effectively solves the short known subject matter of full charge endurance of electromobile.

The utility model has the advantage of: electronic hub device has the obvious energy-saving effect that sequential power supply control brings, increase journey system and effectively can overcome the short subject matter of full charge endurance of electromobile, so that the hub system structure that this scheme carries out designing is simple, cost is low, effectively adapt to the designing requirement of high-end energy-saving electric vehicle.

Accompanying drawing explanation

Fig. 1 is the oily Electronmotive Force basic design schematic diagram of conventional double source hybrid vehicle.

Fig. 2 a is a kind of basic design schematic diagram of the utility model hub system.

Fig. 2 b is a kind of basic design schematic diagram of the utility model electric hub device.

Fig. 2 c is the another kind of basic design schematic diagram of the utility model hub system.

Fig. 2 d is that a kind of magnetic pole that permanent magnet rotor unit is being turned arranges schematic diagram.

Fig. 2 e is that the another kind of magnetic pole that permanent magnet rotor unit is being turned arranges schematic diagram.

Fig. 2 f is that the one that magnetizer rotor unit is being turned arranges schematic diagram.

Fig. 3 a is that stator unit column type is set to the schematic diagram vertical with normal of coaxially turning around core.

Fig. 3 b is the schematic diagram that stator unit column type is set to around core overlap with normal of coaxially turning.

Fig. 3 c be stator unit matrix around core top just to the structural representation of coaxial rotating inner edge.

Fig. 4 a is basic design and the electromagnetic force Directional Decomposition schematic diagram of electric device in wheel hub.

Fig. 4 b is that rotor unit is in the view of coaxial normal with stator unit.

Fig. 5 a is the groundwork logical schematic of power supply modulator.

Fig. 5 b is a kind of block combiner schematic diagram realizing the digital means logic of power supply modulator.

Fig. 5 c is the work-based logic schematic diagram that power supply modulator sets up electro-magnetic braking device input end.

Fig. 6 a is the time diagram of power supply modulator outgoing current in periodicity break-make.

Fig. 6 b is the one energising logical schematic that a stator unit combines a rotor unit.

Fig. 7 a is a kind of local structure schematic diagram that a stator unit combines 8 rotor units.

Fig. 7 b is the power on/off time domain schematic diagram of swing circle corresponding power modulator of coaxially turning.

Fig. 7 c is the one energising logical schematic that a corresponding stator unit combines 8 rotor units.

Fig. 8 is a kind of local structure schematic diagram that two stator units combine 8 rotor units.

Fig. 9 a is a kind of local structure schematic diagram that 8 stator units combine 12 rotor units.

Fig. 9 b is a kind of local structure schematic diagram that 12 stator units combine 12 rotor units.

Figure 10 a is a kind of local structure schematic diagram that the utility model is applied to electro-tricycle.

Figure 10 b is a kind of local structure schematic diagram that the utility model is applied to electric four-wheel vehicle.

Accompanying drawing identifies:

1, power supply modulator; 1a, DC supply input; 1b, sequential current output terminal; 1c, induced signal input end; 1d, train signal input end; 1e, speed-slackening signal input end; 2, deceleration/torque changing apparatus; 3, electric device; 3a, stator unit; 3b, rotor unit; 3c, sensing unit; 3d, air gap; 3e, coaxially to turn; 4, vehicle frame; 5, wheel; 6, wheel hub; 7, wheel shaft; 8, battery pack; 9a, driving actuation means; 9b, electro-magnetic braking device; 10, coaxial normal; 11, wheel tangent line; 12, winding two extreme direction line; 13, electric hub device; 16, journey system is increased; 17, logic charging unit; 17a logic charging unit input end; 17b, logic charging unit mouth; 18, electric energy supplementary device; 19, Fuel Tank; 20, internal combustion engine system; 21, electric motor system; 22, oil, electric power conversion device; 23, machine driven system; normal angle.

Detailed description of the invention

Further the utility model is described in detail below in conjunction with drawings and Examples.

See Fig. 2 a, the obvious characteristic of the hub system of the utility model hub system and the electric hybrid vehicle of routine oil is distinguished and is: one, the drive system and the dynamic transfer system that increase journey system 16 and battery-driven car have nothing to do: they are two years old, the electric energy supplementary device 18 increasing journey system can be the system of internal combustion engine generator combination or the system of primary battery combination, or its combination; Its three, the basic design of electric hub device is different from mode and routine techniques.

Fig. 2 b is a kind of basic design schematic diagram of the basic machine of electric hub device described in the utility model, and the obvious difference of this physical construction and general hub-type electric machine is:

1, electromagnetic force occurring source: the separate unit coming from good wire wounded core, described good wire uses copper material or copper-plated metal usually, magnetic core uses conventional magnetic media material, such magnetic medium be known to the skilled person a kind of under magnetic fields internal state change and produce the material of stronger complementary field.

2, coaxially turn upper: rotor unit has permanent magnet and magnetizer bi-material, and what such magnetizer was known to the skilled person a kind ofly responds to magnetisation and the magnetic pole material contrary with outer magnetic field direction under magnetic fields; And pole orientation is identical when several permanent magnet rotor unit are arranged on coaxially turning.

See Fig. 2 d, 3e outer rim of coaxially turning is provided with a permanent magnet rotor unit 3b1, S pole-face is to interior setting of coaxially turning, a stator unit 3a is provided with in coaxially turning, relative air gap 3d is enough little in both motions, if stator unit energising N pole-face to coaxially turning, then permanent magnet rotor unit convergence energising stator unit time, its electromagnetic attracting force can be subject to and make coaxially to turn accelerated movement; In another embodiment, the S polar motion stator unit in opposite directions of permanent magnet rotor unit, body hand of rotation is reversed corresponding thereto in the N pole of stator unit winding energising, and both magnetic action are similarly attracting, as shown in Figure 2 e; If turned, 6 outer rims arrange magnetizer rotor unit 3b2, and because its year magnetic is for by stator unit electromagnetic field inducing institute extremely, no matter how the energising direction of stator unit winding is arranged, and both magnetic action are attracting, as shown in figure 2f; It is the basic model of the utility model electric hub device that this stator unit electromagnetic pole and the attracting relation of rotor unit are arranged, the rotor unit arranging two kinds of different substrate materials on coaxially turning is because permanent magnet and magnetizer have and initiatively carry magnetic and by two kinds of different qualities of dynamic load magnetic, can combine according to its different qualities variation, to adapt to the control that electric hub device drove, braked multiple real-time status.

As shown in fig. 4 a, when the stator unit of rotor unit convergence energising, the electromagnetic force F that it is subject to can be analyzed to normal 10 direction F corresponding to axle ₁₀and corresponding tangent line 11 direction F ₁₁, wherein contributive around axle to rotor unit is tangential forces F ₁₁.Rotor unit around axle stressed relevant in the interval of coaxially turning to stator unit electromagnetic field effect, be the stator unit of column to one around core, its electromagnetism line of force passes through the maximum interval of air gap, corresponding to electromagnetic pole the two poles of the earth line 12 vertical to the corresponding normal 10 of coaxially turning (parallel with corresponding tangent line 11), as shown in Figure 3 a; The two poles of the earth line that column also can be set to electromagnetic pole around core overlaps to the corresponding normal of coaxially turning, and as shown in Figure 3 b, selects when this set-up mode is generally multiple stator unit combination arrangement.For matrix around core, its electromagnetic force, between the sphere of action of rotor unit, is positioned at matrix around core top just to the two ends scope of coaxially turning, as shown in Figure 3 c.

Rotor unit is when axle moves, and itself and the determined normal of axle and stator unit and the determined normal of axle are a dynamic angle it overlaps with suffered electromagnetic force F action direction around axle tangential direction is a special state, now angle for definite value the useful effect of electromagnetic force suffered by rotor unit is interval, be positioned at to be 0 state be benchmark in lane place (described ± relatively to define according to the hand of rotation of coaxially turning).When when being 0, F ₁₀for maxim, F ₁₁be 0, now to rotor unit around axle without contribution, as shown in Figure 4 b.F ₁₁and F ₁₀be a pair shifting kinematic variable, its theoretical strong and weak conversion with for train spacing point, status and appearance be with propulsive effort F ₁₁be main, status and appearance be with braking force F ₁₀be main.

The driving power supply technique scheme of electric device described in the utility model is: power supply modulator is corresponding state time domain energising, all the other time domain power-off; When main design goal is for economize on electricity, preferably even corresponding time domain energising; When needing to make full use of the rotor inertia of coaxially turning, preferably even corresponding time domain energising; Cause state with considerable F ₁₀, state energising is to driving the design sense rotating and lost and optimized economize on electricity; The break-make time domain of this drive current described as shown in Figure 6 a, wherein T ₁for current"on"time, T ₂and T ₀be power-off time, (T ₁+ T ₂+ T ₀) constitute Timing driver current cycle T.The technical scheme of the utility model electric hub device braking power supply is: the corresponding T of power supply modulator ₂and T ₀part time domain or all time domain be set to energising, described T ₂for rotor unit is corresponding around axle time domain, described T ₀for rotor unit is away from the corresponding time domain of stator unit, preferably this time domain braking be because there is considerable tangential force F in state ₁₁, unhelpful to Brake Design.Electric device passes through the real-time transmission of deceleration/torque changing apparatus, corresponding driving/braking state transfer on wheel hub.

Above-mentioned basis the switching electric control of corresponding states can approximate transform be that relative time controls, because be 0 state and state is aobvious state, and power supply modulator is easily sentenced by timing alignment and known from to 0, i.e. (T ₁+ T ₂) time period, as long as setting T ₁with T ₂relative time, it is right to be namely equivalent to the switching electricity temporal scalable of corresponding state; Such as control corresponding extremely time domain energising, can briefly be set as: at (T ₁+ T ₂) time period initial 1/2 time domain energising, 1/2 time domain power-off afterwards; In like manner, control is worked as corresponding to the time domain energising of 0, can briefly be set as: at (T ₁+ T ₂) time period initial 2/3 time domain power-off, afterwards 1/3 time domain energising; But (T ₁+ T ₂) be an amount relevant to rotating speed of coaxially turning, determine with the relative time of sequential current cycle state can there is deviation when speed change, this deviation can corresponding each cycle be 0 state calibrate.

After stator unit setting (comprising combination) scheme is determined, aobvious state position determined simultaneously, during actual design, normally use aobvious state position judge the one foundation of the inner relative position of electric device as sensing device; exact location be one to radian of turning, air-gap separation, stator unit around the relevant value of the parameters such as core shape and arrangement thereof, have multiple theoretical model, should through test inhabitant area during specific design.The corresponding work-based logic exporting driving or braking current of power supply modulator can be realized by ordinary tap control path, and CPU also can be adopted to programme in conjunction with power model group circuit realiration, or the special chip adopting large-scale integration circuit technology to manufacture realizes.

Concerning electric device by a stator unit 3a combination coaxial turn a upper permanent magnet rotor unit and a magnetizer rotor unit simple analysis example, the electromagnetic force useful effect that rotor unit is not in stator unit around the axial period π most of the time is interval, first should consider T break period of electric current timing cycles T during programming ₀, and then preferred power-off time T ₂with driving T current"on"time ₁, improve the degree of utilization of electric energy, Fig. 6 b is that this simple analysis example permanent magnet rotor unit 3b1 and magnetizer rotor unit 3b2 is separated by 180 degree when being symmetrical arranged, the driving energising sequential logic schematic diagram of corresponding one of them rotor unit 3b1/3b2.The advantage that combination arranges bi-material rotor unit is: if only arrange permanent magnet rotor unit on coaxially turning, because its magnetic pole is fixed, no matter how pole orientation arranges all can not be followed the electromagnetic force of stator unit with dynamic antipole form, energy conversion efficiency is high not as magnetizer rotor unit; If only arrange magnetizer rotor unit on coaxially turning, because it is induction magnetisation, when its be just in be in stator unit trapping gap same normal 10, when being 0, easily there is stall.Above alternately be provided with permanent magnet rotor unit 3b1 when turning, power supply modulator is sentenced by sensing device and is known permanent magnet rotor unit be the position of 0, the corresponding static state that sends starts sequential electric current; The so-called static simple example starting sequential electric current, encounter above-mentioned stall, power supply modulator when setting-up time maxim can not get sensing device feedback signal, send the starting current contrary with normal drive current direction in real time, above at least one the permanent magnet rotor unit that makes to turn is subject to the same polarity effect of repelling each other and departs from the state being in same normal with stator unit trapping gap, avoids stall to occur.

Concerning electric device to be combined the analysis case of n rotor unit 3b (3b1/3b2) by stator unit 3a, stator unit 3a is, with n rotor unit 3b, electromagnetic action occurs at the swing circle π that coaxially turns, power supply modulator 1 preferably sends the energising sequential that n cycle is T, and the correspondence swing circle π that coaxially turns has n T ₁, a n T ₂and n T ₀sequential working logic, this unitized design proposes high requirement to power supply modulator.Rotor unit not arranges The more the better, and its number n on coaxially turning is limited to the interval corresponding space occupy-place of suffered stator unit electromagnetic force useful effect, otherwise the sequential current cycle that power supply modulator correspondence exports can be overlapping.Fig. 7 a is the structural representation sketch that a stator unit combines 8 rotor units, stator unit coaxially turn swing circle π respectively with 8 rotor unit generation magnetic action, the theoretical sequential electric current that power supply modulator is corresponding is divided into 8 (T ₁+ T ₂+ T ₀) cycle, Fig. 7 b denote a kind of T of setting be π/8, at T corresponding to hand of rotation of coaxially turning ₁, T ₂and T ₀schematic frequency domain, Fig. 7 c is the energising logical schematic of one of them cycle T.

As shown in Figure 8, the inside of coaxially turning of electric device is provided with two stator unit 3a, is provided with 8 rotor unit 3b on coaxially turning, and in the swing circle of coaxially turning, power supply modulator will provide 8 cycles for (T for two stator units respectively ₁+ T ₂+ T ₀) sequential electric current, this combination proposes higher designing requirement to power supply modulator.8 stator units can be selected further to combine 12 rotor units (as illustrated in fig. 9), 12 stator units combine 12 rotor units (as shown in figure 9b) etc.In theory when H stator unit and n rotor unit unitized design, if power supply modulator is to H the discrete power supply of stator unit winding, need corresponding design n*H electric current sequential T, i.e. n*H (T ₁+ T ₂+ T ₀) electric current sequential, programming will be very complicated, therefore in the utility system design of multiple stator unit 3a, preferred H stator unit winding electric series combination, or H stator unit winding is divided into some groups of external source modulator, the such as windings in series of 12 stator units, tap totally three external electric connection of power supply modulator of line (being similar to the Δ shape connection of the inner winding of conventional motors) are drawn in the middle of every 4 windings, the difference of the differetial-potential that technically these three lines also can be utilized to compare between two, as the signal source that a kind of rotor unit and stator unit relative position differentiate, substitute the independent sensing unit arranged.

In theory, also can combine at coaxially turn installation rotor unit and several stator units, though this equivalent arrangements can be implemented technically, but because of the cost of stator unit relatively high, not preferred scheme.

Power supply modulator 1 can realize by ordinary tap circuit layout or pulse digit technology, the fundamental functional modules of the latter generally comprises power converting circuit, the microprocessor of internal memory contain job procedure and signal input and output circuit, the sequential electric current of driver module output is correspondingly controlled by sensing unit 3c feedback signal, Dynamic controlling is carried out to electric device 3, its work-based logic such as Fig. 5 a shows, and Fig. 5 b is a kind of block combiner schematic diagram realizing the digital means logic of power supply modulator basic function.

The work-based logic transformation directive signal of power supply modulator normally obtains from the sensing unit being connected in coaxially turn inside or outside, sensing unit is not limited to use magnetoelectric induction winding or Hall element, also photoelectric encoder etc. can be used, when rotor unit is around axle 7 cyclical movement, the rate of change that sensing unit can obtain electric current (voltage) feeds back to power supply modulator, and power supply modulator is sentenced according to this induced signal the relative position of knowing rotor unit 3b and correspondingly sent electric current sequential.According to the operating accuracy of sensing unit 3c and reliability requirement, sensing unit 3c can coaxially turn inside or outer setting one or several, even be deformed into become the mode of multi-thread circuit feedback from above-mentioned multiple stator unit windings in series and use stator unit 3a Double-wire ring around winding feedback mode obtain work-based logic transformation directive signal, now the induced signal input end 1c of power supply modulator is corresponding built-in, and its response process proposes high requirement to the job procedure logic of power supply modulator 1.Due to the development of large-scale integration circuit technology, the programming technique realizing the conversion of above-mentioned work-based logic is that industry professional person is known, and institute is it is to be understood that sequential current cycle, energising subset time domain and the basic design parameter such as amplitude change and power-off time domain therebetween.

To sum up, described power supply modulator is a logic power on-off system, sequential power cycles/frequency reflects unit time internal stator unit 3a to the energization action number of times of rotor unit 3b, this time sequence frequency remote definition rotating speed of electric hub device and the energising amplitude required for stator unit or electromagnetic force (coming from power supply modulator to be energized to the winding of stator unit), energising amplitude is larger, unit time internal stator unit energising is larger to the application force of rotor unit, effect number of times is more, and it is faster that its result reflects rotating speed of coaxially turning.The sequential power frequency that power supply modulator exports, rotates the implicit (T of one-period with coaxially turning ₁+ T ₂+ T ₀) sequential effect number of times, energising mean intensity and rotating speed be mutually corresponding all physical quantity relations, therefore after power supply modulator many imposes a condition and enter logic working state, the frequency controlling sequential energising namely controls rotating speed.This manually operated electric hub device rotating speed is by driving the input end 1d of actuation means 9a electric connection of power supply modulator to realize.

As utilization T ₂when electromagnetic force braking function is set up in time domain energising, the corresponding speed-slackening signal input end 1e set up of power supply modulator is electrically connected with electro-magnetic braking device 9b, as shown in Figure 5 c; Electro-magnetic braking device 9b can be set to a continuous or multistage rheostat, and its function is the braking current intensity controlling power supply modulator output, and braking current is larger, and electromagnetic braking effect is better.

Described stator unit 3a is in the inner main points be connected with solid mechanical device of the 3e that coaxially turns, the relative air gap 3d that will make rotor unit that magnetic action effectively occurs with its formation in Periodic Rotating, this air gap is that stator unit transmits the energy channel of electromagnetic force to rotor unit, air gap is more little is more conducive to magnetic energy effect transmission, but the too small easy generation Mechanical Contact of air gap, needs comprehensive rigidity and the machining accuracy of holding material during design.

Described deceleration/torque changing apparatus 2 is generally formed by some gear combination, the rotating speed changing mechanical drive input end or the technical goal changing torque can be reached by the combination of some gears, the design plan of deceleration/torque changing apparatus is more, and the 3e that preferably and coaxially turns coaxially arranges and is arranged at and coaxially to turn and between wheel hub.Deceleration/torque changing apparatus can independently be arranged, also can with coaxially to turn or electric device entirety carries out integrated design, be even arranged at and coaxially turn and the local location of endless belt between wheel hub; But this kind of design arranging deceleration/torque changing apparatus at the inner local location of wheel hub, need configure the device such as suspension, damping spring adjustment center of gravity, not preferred technical scheme usually in wheel hub.

The traditional product of described driving actuation means 9a is rheostat or the potential device of a deformation design, artificial easily manipulation, with technical development in recent years, the special actuation means be much based upon on photosensitive, Hall control principle basis reaches its maturity, this series products is generally designed to conventional rotating handles formula, also can be designed to plug-type joystick or other any manual control modes, comprise remote control.

Existing market main flow battery-driven car is configuration secondary battery, and because the specific energy of secondary battery is low, lead battery is generally only 40VAh/Kg, and lithium cell is generally 120VAh/Kg, and the course continuation mileage of joining car owes desirable; The advantage of primary battery is that self-discharge is little, specific energy is high, the specific energy of the aluminium-air cell that Recent experimental room makes reaches more than 8000VAh/Kg, but the general defect large with internal resistance of this kind of metal electrode primary battery, though its specific energy is high but large current discharging capability is not strong, although its following application prospect is had an optimistic view of by industry, but present stage is the difficult electric device discharge performance demand meeting battery-driven car still, and more sane technical scheme uses as auxiliary electric energy.

The utility model hub system arranges to increase journey system 16 in the technical foundation of electric device configuration secondary battery, and described increasing journey system comprises logic charging unit 17 and electric energy supplementary device 18; The radical function of described logic charging unit is the real-time status of monitoring battery pack 8, and is battery pack electric energy supplement under the work-based logic of setting, as shown in Figure 2 a; The real-time status of described battery pack at least comprises real-time voltage or remaining capacity, the nominal operating voltage of the lead battery of such as certain battery-driven car is 48V, its normal working voltage interval is 42.0V to 53.2V, when the threshold voltage that setting lead battery supplements electricity is 47V, as long as the real-time voltage that logic charging unit monitors battery pack drops to 47V, namely automatic or manual startup electric energy supplementary device 18 is the supplementary electricity of battery pack.The function that described logic charging monitoring and DC charging control, also can realize to power supply modulator by Partial Transformation, shown in Fig. 2 c be a kind of monitor battery pack real-time voltage by power supply modulator 1 and control recharge logic, basic design schematic diagram that DC charging function is completed by logic charging unit 17; Logic charging unit even all can be transplanted to power supply modulator and carry out integrated design.The electric energy supplementary device of described increasing journey system, can combine for the arbitrary primary battery of material and DC charging control setup, such as, adopt aluminium-air cell.

Electric energy supplementary device also can combine for Fuel Tank, combustion engine, electrical generator and rectifying device, the combination of such device is relative maturity technology, and described fuel includes but not limited to methyl alcohol, ethanol, gasoline, diesel oil, natural gas, gaseous state or liquified hydrogen etc.; Known in the industry, an important feature of combustion engine is that the state burning when low speed or speed change is insufficient, but operating mode is general all more satisfactory under the invariable power state of constant speed especially high speed, increasing journey systemic-function due to the utility model battery-driven car is only be battery pack electric energy supplement, combustion engine can be arranged on invariable power operating mode, even if the energy source of electric energy supplementary device adopts automotive fuel, the burning and exhausting of fuel is also very low.

Two class electric energy supplementary devices of described increasing journey system, may be combined with in battery-driven car design and use.

Described preference is only recommendation, and some technical schemes may be combined with and use, partly can use and also can add other mature technologys.As long as according to the magnetic current energy feature of electric device, by the sequential electric current also configuration increasing journey system that can accurately control power supply modulator design, the basic fundamental target of the utility model scheme can be realized.

To the professional person that battery-driven car and wheel hub motor technology are comparatively understood in depth, be all not difficult on described scheme basis, be out of shape with drawing inferences about other cases from one instance and implement the utility model content.The basic design of electric hub device described in the utility model, increase journey system schema and the distortion of derivative technology is implemented, protection domain of the present utility model all should be put into.

Embodiment 1,

A hub system for assistance type electro-tricycle, comprises electric hub device 13, battery pack 8 and increases journey system 16; Electric hub device is arranged at front-wheel, and its supporting vehicle frame 4 and machinery local schematic construction are as shown in Figure 10 a; Battery pack 8 selects the plumbic acid colloid battery of nominal 48V20Ah, is arranged on the bottom of vehicle frame; Increase journey system with methyl alcohol generator system for electric energy supplementary device 18, generator system is combined by methanol fuel tank, methyl alcohol combustion engine, electrical generator and rectifying device; The logic charging unit 17 increasing journey system limits the functional module such as current charges module and work-based logic control module formed primarily of battery pack real-time voltage monitoring modular, constant voltage, its input end 17a is electrically connected electric energy supplementary device, and its mouth 17b is electrically connected the both positive and negative polarity of battery pack.

The wheel hub 6 outer rim girth of this battery-driven car is 1000mm, and the 3e that coaxially turns of electric device 3 is the annular titanium aluminium alloy circle that has turning cylinder, girth is 300mm, on the mechanical device that alloy ring inside and dead axle are connected, installs a stator unit 3a; Coaxially turn and coaxially to install with wheel hub 6, be provided with a deceleration/torque changing apparatus 2 by some gear combination therebetween, as shown in Figure 2 b; Electric device is realized and wheel hub mechanical drive by deceleration/torque changing apparatus, and the reduction ratio of deceleration/torque changing apparatus is 10:1.

Coaxially the turning of electric device is designed with two rotor units, 180 degree of installations of being separated by coaxially turning, and one of them is permanent magnet rotor unit 3b1, and material is nd-fe-b, another is magnetizer rotor unit 3b2, selects market to be easy to the ferromagnet purchased, wherein, the two poles of the earth line of permanent magnet rotor unit 3b1 is parallel with the tangent line of coaxially turning, S pole-face to hand of rotation of coaxially turning, as shown in Figure 2 e, two rotor units are processed into cell type junior unit, and the Design of length of this junior unit is 10mm, and width gets maxim when not affecting installation, snugly fits into the outer rim of the 3e that coaxially turns, stator unit 3a selects market to be easy to the channel magnet purchased around core, there is more magnetic domain in this ferromagnet inside, under outside magnetic field effect, magnetic domain easily turns to and produces the complementary field consistent and much better than with outer magnetic field direction, spill is processed into and corresponding arc of coaxially turning around core bottom, coil winding is formed around spill magnetic core 55 circle by the copper cash of a diameter 0.75mm, Installation features: fixed position stator unit being arranged on coaxially turn inside close its inner rim 7mm, captive screw is fixed, spill around core top just to coaxial rotating inner edge (as shown in Figure 3 c), two ends correspondence is coaxially turned occupy-place 34 degree of mechanical angles.

The maximum speed per hour of setting electric two-wheel vehicle is about 20km/h and 5.6m/s (5.6 turns/s), and meter is picked up the car and taken turns corresponding spin cycle time is 180ms; The 3e that coaxially turns is 56 turns/s through the speed limit of deceleration/torque changing apparatus 2 correspondence, corresponding spin cycle time 18ms, i.e. (the T that powers of power supply modulator 1 pair of electric device ₁+ T ₂+ T ₀) timing cycles minimum value T is 18ms; Power supply modulator is realized by general pulse digital means, design overload power 1200W, T in setting timing cycles ₁: (T ₂+ T ₀) be 1:35, the T that the timing cycles that namely speed limit is corresponding is powered ₁value 0.5ms, all the other 17.5ms are off-position; The intensity of current that the corresponding maximum speed per hour of power supply modulator exports is 16A when rated voltage is set to 48V, and this current value to design in conjunction with electric device 3 according to complete vehicle weight, the specified body weight of chaufeur and through test inhabitant area.Electric hub device is located at the trailing wheel of two-wheel car.

The power input 1a of power supply modulator is electrically connected the both positive and negative polarity of battery pack 8, Timing driver current output terminal 1b is electrically connected the coil winding of stator unit 3a, induced signal input end 1c is electrically connected sensing unit 3c, and train signal input end 1d is electrically connected and drives actuation means 9a.The energising direction of the inner winding of stator unit, be set to shown in Fig. 2 b around the extremely inverse hand of rotation of coaxially turning of core N.Sensing unit 3c is made up of a magnetoelectric induction winding, by captive screw, sensing unit is connected in the position of coaxially turn 3e inside close its inner rim.Drive actuation means 9a to adopt the rotating potentiometer of stepless variable resistance, Conventional hand grips formula, by the Aided design with electronic control circuit, control the intensity of current of power supply modulator 1 output in real time by changing resistance, thus control the normal speed of a motor vehicle of battery-driven car.The accessory that battery-driven car routine uses all adopts commercial products supporting.

The work-based logic that power supply modulator 1 sets is: relative with stator unit 3a and rotor unit 3b periodicity trapping gap 3d, be in same normal 10 ( be 0) state be designated as benchmark coordinate and fiducial time, when manpower assistant or drive actuation means 9a to provide drive singal and sensing unit 3c perception rotor unit 3b goes to around axle 7 reach in the moment (about 17 degree, respective rotor unit enters spill initial time relative within the scope of core two ends, and fine values is through test inhabitant area) of position, power supply modulator starts output 12A electric current; When rotor unit 3b goes to reference seat timestamp around axle 7 at every turn, power supply modulator carries out a time and returns 0 calibration and record this period, compare period by going to reference seat target last time with rotor unit, know the instantaneous value of this period, and according to real-time status, further work logic is judged: if drive actuation means 9a to power supply modulator without input instruction, power supply modulator dormancy; If the instruction driving actuation means 9a to provide accelerates, then power supply modulator at next cycle respective rotor unit 3b around axle extremely for the time period of position, perform T ₁with (T ₂+ T ₀) ratio is the switching electricity sequential of 1:35, the mean intensity of in real time energising provides by driving actuation means; If drive actuation means to maintain the state of power supply modulator outgoing current close to 16A, the logic state of above-mentioned setting will make the sequential of power supply modulator energising frequency more and more higher, in corresponding wheel 5 each cycle, stator unit 3a gets more and more to the electromagnetic force number of times of rotor unit 3b, and the speed of a motor vehicle is more and more faster; When sequential energising frequency higher than set 1/18ms (correspondence coaxially turn rotating speed 56 turns/s) or the continuous 5s of power supply modulator outgoing current maintains the state of 16A time, the unconditional power-off of power supply modulator and reach the design objective of automatic speed-limiting.

The work-based logic that the logic charging unit 17 increasing journey system sets is: when the real-time voltage monitoring battery pack 8 drops to 47V, automatic startup methyl alcohol generator system is battery pack 8 electric energy supplement, its charging mode of operation is that constant potential 58.8V limits maximum current 4A, automatically stops charging when charging current is less than 0.5A.

Electric hub device described in the present embodiment, also can correspondingly be arranged on single wheel cycle, or is arranged on the front-wheel of two-wheel car, trailing wheel or front and rear wheel and arranges simultaneously; Each wheel can be installed by a set of electric hub device, also may correspond to wheel installation two cover and much more even to overlap electric hub device; Increasing journey system described in the present embodiment is the fuel of electric energy supplementary device owing to adopting methyl alcohol, and methyl alcohol combustion engine is arranged on invariable power operating mode, discharges very low; The power-assisted course continuation mileage of this two-wheel car, depends primarily on the capacity of methyl alcohol that Fuel Tank carries instead of battery pack 8.

Embodiment 2,

Electric energy supplementary device embodiment 1 being increased journey system changes into aluminium air primary battery by methyl alcohol generator system, power supply modulator 1 adopts pulse digit technology to realize, nucleus module comprises the driver module of a conventional CPU and design horse power 1500W, its refinement work-based logic as shown in Figure 5 b, wherein impulse transfer modulate circuit mainly completes and impulse singla is converted to step signal, pulse signal generator mainly produces required impulse singla, secondly through the pulse of differential circuit output spike, then through the negative half period filtering of limiter circuit by spike, remaining positive axis spike, carry out integration with the integrating circuit of integrated transporting discharging composition to add up, add voltage comparator and control circuit, just constitute complete step pulse signal, parameter adjustment is carried out to each element of circuit, thus be met the step signal of work-based logic requirement.Power supply modulator is at T ₁in energising sequential, the pulse current making driver module produce a series of amplitude to successively decrease with sequential by control chip (CPU), impulse rate 30KHz.

The function setting increasing the logic charging unit 17 of journey system is charge to battery pack 8 in the mode of constant potential, restriction electric current, and its work-based logic instruction is sent by power supply modulator 1; Power supply modulator has the function to the monitoring of battery pack real time capacity and signal transacting concurrently, there are the functional modules such as time meter, signal trigger and logic processor inside, its external equipment comprises loading capacity calibration unit, and this loading capacity calibration unit forms at the track remodelling of commercial special loading capacity instrument, the display of extraction loading capacity; The work-based logic increasing journey system is: loading capacity calibration unit carries out the once differentiation stream size of test in every 5 minutes to battery pack 8, when the real time capacity of battery pack is more than 45% of nominal capacity time, signal trigger module does not work, and logic charging unit should be static mutually; When real time capacity≤45% nominal capacity of battery pack, signal trigger module sends signal, and logic processor module is corresponding, and to send signal enabling aluminum air battery system 18 by logic charging unit 17 be battery pack 8 electric energy supplement.

The electric boosted increasing journey of the present embodiment two-wheel car depends on the accumulate capacity of aluminium-air cell; Described aluminium-air cell, also can be replaced into zinc-air battery or storage hydrogen device for converting electric energy.Stator former unit winding starts the moment of energising, also can change into (T ₁+ T ₂) time period is reference point time delay 1% to 5%.

Embodiment 3,

Embodiment 2 basis uses T ₂time domain energising sets up electromagnetic force braking function to electric hub device.

Power supply modulator corresponding increase speed-slackening signal input end 1e is electrically connected electro-magnetic braking device 9b, and as shown in Figure 5 c, electro-magnetic braking device is ten grades of rheostats; When manual control electro-magnetic braking device sends speed-slackening signal, power supply modulator cuts off T ₁the electric current of corresponding sequential, starts T ₂time domain is energized, and this braking energising time domain is set in sensing unit 3c perception rotor unit 3b around axle extremely be 5 degree to arrive it is the time period of 0 position.

The braking current that power supply modulator exports, ten grades of resistance shelves of corresponding electro-magnetic braking device 9b are set to ten grades of intensity, and the intensity of current that setting exports is: chopped-off head 5A, final stage 16A, ten grades of electric currents are on average arranged.

Embodiment 4,

The brake logic of embodiment 3 electric hub device is optimized for further: power supply modulator starts T ₂while time domain energising, by T ₀the work-based logic of part time domain is synchronously transformed to energising, this T ₀numerical value and the (T of part time domain ₁+ T ₂) equal, T ₀energising Startup time with it is 0 beginning timing; Power supply modulator is at this T ₀the intensity of current that part time domain exports and T ₂time domain is identical, and this scheme can strengthen electromagnetic force braking effect.

The present embodiment adds rotor unit and stator unit to the braking of stator unit winding energising and is in time domain away from state; This braking energising time domain T ₂also can corresponding cycle sequential T and being briefly set as: at (T ₁+ T ₂+ T ₀) in sequential, initial 6/17 time domain power-off, afterwards 12/17 time domain energising.

Aforementioned braking time domain it is the time period that also can change to time period of 5 ~ 0 degree of positions 2 ~ 0 degree of positions.

Embodiment 5,

The hub system of electric wheel hub is installed respectively at crossbeam two ends.

In the present embodiment, the basic machine of two electric hub devices shares a power supply modulator, wheel hub outer rim girth is 1500mm, the 3e that coaxially turns of the basic machine inside of each electric device is the annular alloy steel ring that has turning cylinder, girth is 500mm, chimeric 8 rotor units on it, comprising 4 permanent magnet rotor unit 3b1 and 4 magnetizer rotor unit 3b2, the S of 4 permanent magnet rotor unit 3b1 is extremely all just to the axle of turning, the average setting alternate with magnetizer of the permanent magnet of 8 rotor units, its local structure are as shown in Figure 7a; Coaxially turning on the inner mechanical device be connected with dead axle, install one with the stator unit 3a of its inner rim spacing 8mm; Coaxially turn and to install with wheel hub 6 concentric, a deceleration/torque changing apparatus 2 by some gear combination is set therebetween, deceleration/torque changing apparatus with coaxially to turn and wheel hub 6 concentric is installed, reduction ratio is 9:1.

Underlying parameter reference example 1 and adjusting, the winding of stator unit is adjusted to 60 circles, matrix is 45 degree around the mechanical angle of the corresponding occupy-place of coaxially turning of core, continue to select speed limit 20Km/h and 5.6m/s (3.7 turns/s), the speed limit of coaxially turning through deceleration/torque changing apparatus 2 correspondence is 33.3 turns/s, spin cycle time corresponding to speed limit got by meter is 30ms, because of the stator unit that is arranged on 3e outside of coaxially turning coaxially to turn in a swing circle respectively with 8 rotor unit generation electromagnetic forces, (the T that power supply modulator is powered to electric device ₁+ T ₂+ T ₀) the corresponding speed limit value of timing cycles is 3.75ms, chooses (T ₁: T ₂: T ₀) be 0.675:1.2:1.875; Power supply modulator selects large scale digital logical switch integrated circuit to realize, design maximum overload capacity 1500W.Power supply modulator, to the energising direction of stator unit inside winding, is set to around the extremely inverse hand of rotation of coaxially turning of core N.

The work-based logic of power supply modulator setting and the method for embodiment 1 are roughly the same, by the sequential energising frequency of period regulation record, the real-time speed of a motor vehicle can be known, when sequential energising frequency is higher than 1/3.75ms (correspondence coaxially turn rotating speed 33.3 turns/s), the unconditional power-off of power supply modulator and reach the design objective of automatic speed-limiting.

Battery pack in the present embodiment selects nominal 55.5V40Ah plumbic acid colloid battery, and increasing journey Operation system setting and embodiment 1 are roughly the same; The present embodiment hub system is than previous example, and two In-wheel-motor driving can make electrical vehicular power double; Described design of installing electric drive wheel at crossbeam two ends respectively, can be two trailing wheels of the two-wheel car that walks abreast of coaxial two-wheeled or three-wheel vehicle, also can be two front-wheels or two trailing wheels of four-wheeled; The present embodiment battery-driven car is installed at same crossbeam two ends because of two electric drive wheels, and during turning driving, two electric drive wheels exist differential, should design speed limit especially, or by the differential program to the built-in turning driving of power supply modulator 1, makes turning driving more stable.

In the present embodiment, drive power supply time domain T ₁also may be defined as from extremely the corresponding time period, be briefly set as: at (T ₁+ T ₂+ T ₀) in sequential, initial 1/4 time domain energising, 3/4 time domain power-off afterwards.

Embodiment 6,

It is two that the stator unit 3a of electric hub device sets up by the basis of embodiment 5, the 3e that coaxially turns is fitted together to 8 rotor unit 3b with integrated forming technique in inside, rotor unit comprises 4 permanent magnet rotor unit 3b1 and 4 magnetizer rotor unit 3b2, the S of 4 permanent magnet rotor unit 3b1 is extremely all just to the axle of turning, and the permanent magnet of 8 rotor units and magnetizer be alternate average setting between two.Changing into around core of two stator units is cylindrical, and number of turns of winding 60 encloses, vertical to the normal 10 of coaxially turning corresponding around core two ends during installation, as shown in Figure 3 a; Two stator units are arranged on the center of the inner plane normal of the 3e that coaxially turns, the annular position near coaxial rotating inner edge 6mm, the mechanical spacing that technical requirements and hand of rotation adjoin rotor unit 3b is identical, the winding electric of two stator units is connected in series, at common in 3e swing circle and its well-distributed 8 the rotor unit generation electromagnetic forces of coaxially turning; The spin cycle time that power supply modulator correspondence is coaxially turned is identical with embodiment 7.

Battery pack in the present embodiment selects 66V50Ah ferric phosphate lithium cell, and the setting of increasing journey system 16 and embodiment 2 are roughly the same; Driving time domain is defined as from extremely the corresponding time period, braking time domain is defined as for extremely it was 0 corresponding time period.Because have employed two stator unit 3a, power effect doubles.

The mechanical layout of two stator unit 3a in the present embodiment, also can change into and inner monosymmetricly determine body region installation turning, the winding electric of two stator units is connected in series, and electromagnetic pole direction is identical.

Embodiment 7,

Be arranged on the hub system of electric four-wheel vehicle as shown in fig. lob, electric hub device is arranged on two trailing wheels; Battery pack 8 selects 48V100Ah plumbic acid colloid battery, increases the electric energy replenishment control mode of journey system 16 pairs of battery pack, is set to electric energy supplementary device 18 and continues batteries charging in battery-driven car runs.

In the present embodiment, the mechanical device that the 3e that coaxially turns of electric hub device is inner ad hoc arranges 12 stator unit 3a, what stator unit was selected is cylindrical around core, number of turns of winding is adjusted to 55 circles, cylindrically during installation to overlap to the normal 10 of coaxially turning corresponding around core two ends line 12, as shown in Figure 3 b, and be uniformly distributed near the annular position of coaxial rotating inner edge 8mm; Power supply modulator, to the energising direction after stator unit combination, is set to the extremely inverse hand of rotation of coaxially turning of N.The titanium aluminium alloy 3e that coaxially turns is fitted together to the rotor unit 3b of 12 alternate settings in inside with integrated forming technique, comprising 3 permanent magnet rotor unit 3b1 and 9 magnetizer rotor unit 3b2, the N of 3 permanent magnet rotor unit 3b1 is extremely all just to the axle of turning, during installation, alternate 1 the permanent magnet rotor unit of every 3 magnetizer rotor units, 12 rotor unit alternate average settings on turning.

In electric device, the winding electric of 12 stator units is connected in series, tap is drawn in the middle of the winding of every 4 stator units, the electric external loops of external formation 3 lines composition (being similar to the Δ shape connection of the inner winding of conventional motors), coaxially turn in 3e swing circle with its well-distributed 12 rotor unit generation electromagnetic forces; The electric connection mode correspondence of power supply modulator is designed to three wire circuit, time sequential pulse electric current mean allocation in each loop that three lines are formed of its corresponding output; What the present embodiment can utilize the external two-phase of stator unit 3a winding to feed back compares differetial-potential difference between two, as the signal source that interior location differentiates, substitutes the independent sensing unit arranged.

The driving of the present embodiment, brake control mode and stator former unit are arranged at coaxially turns inner Method And Principle roughly the same, and the driving of power supply modulator time domain of powering is defined as from extremely the corresponding time period, braking power supply time domain is defined as from extremely it is 0 degree of corresponding time period.

The driving of the present embodiment time domain of powering also can briefly be set as: at (the T of power supply modulator ₁+ T ₂+ T ₀) in cycle sequential, initial 1/10 time domain energising, 9/10 time domain power-off afterwards.Braking power supply time domain T ₂also can briefly be set as: at (T ₁+ T ₂+ T ₀) in sequential, initial 3/8 time domain power-off, afterwards 5/8 time domain energising.

In the hub system of the present embodiment, the electric energy supplementary device 18 increasing journey system 16 both can be fuel generator system, also can be primary battery system; Mode of operation due to electric energy supplementary device is the synchronous working when battery-driven car starts, and to battery pack floating charge in electric hub device runs, logic charging unit 17 is designed to constant potential 54V, limits the mode of operation of maximum charging current 10A; There is differential when turning driving in the present embodiment two trailing wheels, the built-in differential program of reply power supply modulator, makes turning driving more stable.

Embodiment 8,

The hub system that accurate single-wheel structure electric car uses, described accurate single-wheel structure is coaxial compact installation two wheels, and the physical construction of electric hub device is established between two wheels, i.e. the wheel of two coaxial compact installations shares a set of electric hub device; Electric hub device inner and mode, battery pack 8, increase journey system 16 and design with reference to previous example according to the performance requirement of car; Actuation means 9a is driven to be set to remote control.

The accurate single-wheel structure of coaxial compact installation two wheel described in the present embodiment can at the front-wheel of front and back electric motor car with two wheels, trailing wheel, even former and later two be taken turns and are out of shape enforcement further, make battery-driven car travel effect more stable.

Embodiment 9,

Design a kind of two hub system increasing the electric four-wheel vehicle of journey system 16.

The supporting vehicle frame 4 of this electric four-wheel vehicle and mechanical local structure are as shown in fig. lob; The electric device 13 of hub system is selected to turn described in embodiment 7 and to be provided with 12 rotor unit 3b on 6, describedly to determine body 5 inside and be provided with the structure of 12 stator unit 3a as motor body, power supply modulator 1 adopts general pulse digital means to realize, and set driving, brake logic controlling functions and embodiment 7 are roughly the same.

Battery pack 8 selects 96V100Ah ferric phosphate lithium cell.

The electric energy supplementary device 18 of two increasing journey system 16 is combined by aluminium air primary battery system 18a (comprising aluminium-air cell and control system thereof) and internal-combustion engine generator system 18b (comprising Fuel Tank, combustion engine, electrical generator and rectifying device and control system thereof) respectively; The functional module of the logic charging unit 17 of two increasing journey system comprises charging module and control module, charging module is provided with two-way input end, is electrically connected the electric energy output end of aluminum air battery system 18a and the electric energy output end of electrical connection internal-combustion engine generator system 18b respectively; The charging module mouth electrical connection battery pack 8 of logic charging unit 17, its work startup realizes logic control by the control module of logic charging unit 17 by electric connection of power supply modulator 1.

Logic charging unit 17 is by the programming Control of power supply modulator 1, realize the monitoring to the real-time voltage/remaining capacity of battery pack 8 and charging control function, its control method to aluminum air battery system 18a and the control method to internal-combustion engine generator system 18b are as described in embodiment 1 and embodiment 2; When two increasing journey system 16 is battery pack 8 electric energy supplement, preferentially enables internal-combustion engine generator system 18b, continue to enable aluminum air battery system 18a when internal-combustion engine generator system can not work.The fuel that internal-combustion engine generator system uses is any.

Above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or equivalent replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (10)

1. a hub system for battery-driven car, is characterized in that, described hub system comprises electric hub device (13), battery pack (8) and increases journey system (16); Described electric hub device comprises power supply modulator (1), deceleration/torque changing apparatus (2), wheel hub (6), drives actuation means (9a) and electric device (3); Described power supply modulator comprises power input (1a), sequential current output terminal (1b) and driving signal input (1d), the both positive and negative polarity of described power input electrical connection battery pack; Described electric device (3) comprises coaxially turn (3e), at least one stator unit (3a) and some rotor units (3b); Described coaxially turning is an annular machinery circle with turning cylinder; Described rotor unit comprises at least one permanent magnet rotor unit (3b1) and at least one magnetizer rotor unit (3b2), it is alternate be arranged at and coaxially turn on, and with rotation of coaxially turning; Described stator unit is arranged on the fixed position near coaxial rotating inner edge, and stator unit is not more than 40mm with the relative air gap (3d) formed of coaxially turning; Described coaxially turning coaxially is arranged with wheel hub, and electric device and deceleration/torque changing apparatus are all arranged in wheel hub, at least arrange a set of electric device in wheel hub;

Described battery pack (8) is the secondary battery used that can repeatedly charge;

The inside winding of the sequential current output terminal electrical connection stator unit of described power supply modulator, driving signal input electrical connection drives actuation means.

2. hub system according to claim 1, it is characterized in that, described deceleration/torque changing apparatus (2) comprises some gear combination, its drive input and (3e) mechanical attachment of coaxially turning, its transmission output and wheel hub (6) mechanical attachment; Deceleration/torque changing apparatus is independently arranged, or with coaxially turn or wheel hub integrated setting.

3. hub system according to claim 1, it is characterized in that, described stator unit (3a) is formed around the magnetic core of magnetic media material by least one group of good conductor loop, by connected in series or in parallel between the winding that its several combination obtains, or by drawing the multi-thread external loop of centre tap composition between different winding.

4. hub system according to claim 1, it is characterized in that, described electric device (3) also comprises sensing device, and described sensing device comprises some sensing units (3c) responding to described rotor unit (3b) and stator unit (3a) relative position; Described sensing unit is electrically connected with the transducing signal input end (1c) of described power supply modulator; Described electric device is at least at the inside of coaxially turning or outer setting one sensing unit.

5. hub system according to claim 4, it is characterized in that, the sensing device of described electric device (3) also comprises the inside winding of stator unit (3a), and described inner winding comprises the multi-thread external loop around being in series between the winding of stator unit magnetic core and some stator unit windings.

6. hub system according to claim 1, it is characterized in that, described electric hub device (13) also comprises electro-magnetic braking device (9b), described power supply modulator also comprises speed-slackening signal input end (1e), its electrical connection electro-magnetic braking device (9b).

7. hub system according to claim 1, is characterized in that, described increasing journey system (16) comprises logic charging unit (17) and electric energy supplementary device (18); The input end (17a) of logic charging unit is electrically connected electric energy supplementary device (18), and its mouth (17b) is electrically connected the both positive and negative polarity of battery pack (8).

8. the hub system according to claim 1 or 7, is characterized in that, the electric energy supplementary device (18) of described increasing journey system (16) combines for the arbitrary primary battery of material and control setup; Or combine for internal combustion engine generator and system and device; Or both combine setting.

9. hub system according to claim 7, it is characterized in that, the logic charging unit (17) of described increasing journey system (16) at least comprises charged with direct current device, it is independently arranged, or partial logic function or whole logic function is integrated in power supply modulator (1).

10. the battery-driven car containing the arbitrary hub system of claim 1 ~ 9, described battery-driven car comprises the battery-driven car of one or more wheel and electronic, autocycle; The wheel of described battery-driven car comprises the accurate single-wheel structure of single-wheel and coaxial compact installation two wheel hubs.