CN204526800U - A kind of wheel hub power driven system and the battery-driven car containing this system - Google Patents

Abstract

The utility model discloses a kind of wheel hub power driven system and the battery-driven car containing this system, described wheel hub power driven system comprises wheel hub, deceleration/torque changing apparatus, power supply modulator, driving actuation means and at least a set of electric device; Described electric device comprise coaxially turn, stator unit and permanent magnet rotor unit; 1 rotor unit is at least set on coaxially turning; Stator unit at least arranges one and is not more than 70mm with the relative air gap of rotor unit; Described coaxially turning coaxially is arranged with wheel hub; Described battery-driven car comprises vehicle frame, battery pack and at least one wheel, at least arranges a set of described wheel hub power driven system; Electric energy supplementary device can be installed additional during described battery-driven car configuration secondary battery.The utility model structure is simple, combination is diversified, cost is low, adapts to energy-saving electric vehicle designing requirement.

Description

A kind of wheel hub power driven system and the battery-driven car containing this system

Technical field

The utility model relates to battery-driven car and mains power design field thereof, is specifically related to a kind of structure of wheel hub power driven system and driving thereof and braking method, and the increasing Cheng Fangfa of battery-driven car containing this wheel hub power driven system.

Background technology

The mainly two-wheel car of battery-driven car in the market, the market maintenance of China's electric two-wheel vehicle has reached more than 1.5 hundred million; Except two-wheel car, electro-tricycle also rises rapidly in recent years, discloses 2013 exceeded 1,000 ten thousand according to industry information, and the low-speed electronic four-wheeled market in region also obtain tremendous development.

Current electric vehicle motor is just from universal to Specialty Design future development, its power-supply controller of electric also tries hard to use pulse modulation technique to reduce the reactive loss of machine operation process, market oneself generally apply the pulse pattern of PWQ technology and variable duty ratio, controlled by its turn-on and turn-off to quartz conductor electrical device, mouth is made to obtain the identical and pulse that width is not identical of a series of amplitude, for replacing sinusoidal waveform or the waveform needed for other, by changing the size of circuit output voltage or output frequency, reach the object controlling motor speed.

On battery-driven car market, in recent years colleague all attempts to develop the electric drive wheel arranging motor drive mechanism at wheel rim both at home and abroad, but do not obtain and count on one's card, such as, on market a kind ofly establish tooth in rim outer rim and the Electrical Bicycle of output shaft band tooth electrical motor is installed, by the axle outputting power of gear transmission electrical motor, owing to adopting the electrical motor of traditional design and power supply mode powered by conventional energy, its energy conversion efficiency and hub-type electric machinery together, and arrange in rim outer rim the restriction that electrical motor can be subject to power.On electric four-wheel vehicle market, the main flow thinking of the high-power hub-type electric machine of current exploitation, that electrical motor is set in wheel hub inside, because the weight/volume specific power of conventional electric motor is low, hub weight is caused to increase, practical power consumption index is not low, and cost performance is not high, and the kind of market product is also less.

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 provides fuel outputting power to internal combustion engine system; The parallel electric motor system increasing a set of electrical connection battery pack on this traditional design basis, electrical motor provides electric energy outputting power by battery pack; Two-way power by oil, electric power conversion device shares machine driven system, 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 its distinct disadvantage is that manufacturing cost is high.

Utility model content

The purpose of this utility model, be to provide a kind of design plan at wheel hub outer setting electric device, simultaneously for the design defect of conventional electric motor power supply mode, a kind of design plan direct supply being changed into sequential power supply mode is provided, structure is simple, torque is large, and technique easily realizes, and meets the technical design demand of battery-driven car.

The wheel hub power driven system of a kind of battery-driven car that the utility model provides, described wheel hub power driven system comprises wheel hub 6, deceleration/torque changing apparatus 2, power supply modulator 1, drives actuation means 9a and at least a set of electric device 3; Described electric device 3 comprises the 3e that coaxially turns, stator unit 3a and permanent magnet rotor unit 3b; The described 3e that coaxially turns is an annular machinery circle with turning cylinder, it is at least arranged 1 rotor unit 3b; When multiple rotor unit is arranged around coaxially turning, interval arranges and pole orientation is identical; Described stator unit at least arranges one at close fixed position of coaxially turning, and the relative air gap 3d of the periodicity that itself and rotor unit are formed is not more than 70mm; Described coaxially turning is arranged with wheel hub 6 coaxial 7, and by decelerations/torque changing apparatus 2 and described wheel hub mechanical drive;

Described power supply modulator at least 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, the inside winding of sequential current output terminal electrical connection stator unit, driving signal input electrical connection drives actuation means 9a; The electromagnetic pole direction that described power supply modulator makes stator unit be formed to the inner winding power of stator unit 3a, is set to contrary with the magnetic pole that described rotor unit 3b moves in opposite directions; Power supply modulator obtains the instruction of user and corresponding output timing electric current by driving actuation means, makes wheel hub power driven system realize driving.

Preferably, the rating horsepower of wheel hub power driven system described in the utility model is not more than 28KW.

Preferably, described deceleration/torque changing apparatus 2 comprises some gear combination, and its mechanical drive input end is connected with the 3e that coaxially turns, and its mechanical drive mouth and wheel hub 6 are connected; Deceleration/torque changing apparatus 2 is independent to be arranged, or with 3e or wheel hub 6 integrated setting of coaxially turning.

Preferably, described rotor unit 3b be arranged at the 3e that coaxially turns comprises be embedded in coaxially turn outer rim, inner edge, inside or with integrated design manufacture of coaxially turning, do not limit shape not affecting under the prerequisite being installed on and coaxially turning; The setting of described rotor unit on coaxially turning, comprises N/S the two poles of the earth line 12 to overlap with coaxial normal 10/vertical 4 kinds of typical combination states, and line deflection in N/S the two poles of the earth is no more than 20 degree of angles on 4 kinds of typical combination state bases; Some rotor units are preferably evenly arranged when interval of coaxially turning is installed.

Preferably, 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 formed around the magnetic core of magnetic media material by least one group of good conductor loop by drawing the multi-thread external loop of centre tap composition between different winding;

The mode that the inside winding of described stator unit is externally electrically connected comprises the loop of two lines or multi-thread formation.

Preferably, described stator unit 3a is arranged on the solid mechanical device of 3e inside of coaxially turning, or is arranged near outside vehicle frame or the mechanical device that is connected with vehicle frame of coaxially turning; When described stator unit is installed near coaxially turning, N/S the two poles of the earth line 12 that its inner winding energising is formed is perpendicular or parallel with coaxial normal 10, comprises the line deflection of N/S the two poles of the earth and is no more than 20 degree of angles; The windings in series of several stator units, to be connected in parallel, comprise several around core arrangement combination, it is arranged follows electromagnetic pole direction and rotor unit 3b and to move the contrary fundamental principle of magnetic pole in opposite directions, is preferred with the magnetic flow acquisition of its inner winding combination energising through air gap 3d maxim.

Preferably, the some deceleration/torque changing apparatus 2 of described configuration of coaxially turning and some wheel hub 6 coaxial transmissions, or described wheel hub arranged coaxial some coaxially turn 3e and the transmission of some deceleration/torque changing apparatus 2.

Preferably, the electric device 3 of described wheel hub power driven system 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 device is at least at the inside of the 3e that coaxially turns or outer setting one sensing unit.

Preferably, described sensing device also comprises the inside winding of stator unit 3a, and described inner winding comprises around the multi-thread winding of stator unit magnetic core and by the multi-thread external loop be in series between some stator unit windings.

In the utility model, described wheel hub power driven system also comprises electro-magnetic braking device 9b, and described power supply modulator 1 also comprises speed-slackening signal input end 1e, its electrical connection electro-magnetic braking device 9b; Described power supply modulator obtains the instruction of user and corresponding output timing electric current by electro-magnetic braking device, makes wheel hub power driven system obtain braking.

In the utility model, direct supply is converted to sequential electric current by described power supply modulator 1, and the stator unit 3a in electric device is energized and power-off with being limited at the timing cycles of power supply modulator setting.

Battery-driven car containing above-mentioned arbitrary wheel hub power driven system described in the utility model comprises vehicle frame 4, battery pack 8 and at least one wheel 5, and described battery-driven car at least arranges a set of described wheel hub power driven system; Described battery pack comprises disposable primary battery 8a or the secondary battery 8b used that can repeatedly charge, or both combine setting.

The vehicle frame of described battery-driven car is any;

The wheel of described battery-driven car comprises the accurate single-wheel structure of single-wheel hub and coaxial compact installation two wheel hubs.

Preferably, the combination of described primary battery 8a and secondary battery 8b arranges and comprises electricity and be connected in parallel.

Preferred, electric energy supplementary device 18 is installed additional during described battery-driven car configuration secondary battery 8b, described electric energy supplementary device comprises the arbitrary primary battery 8a of material and control setup combines, or is that internal combustion engine generator and system control device combine, or both combine setting; Electric energy supplementary device is electrically connected secondary battery by logic charging unit 17; Described logic charging unit is independently arranged, or its partial logic function or whole logic function is integrated in power supply modulator 1.Described increasing journey system comprises electric energy supplementary device and logic charging unit.

The control setup of described primary battery 8a at least comprises primary battery starter gear; Described internal combustion engine generator comprises combustion engine and electrical generator, and described system control device at least comprises internal combustion engine start and shutdown feature; The fuel of described combustion engine is any; The combination of described electric energy supplementary device is arranged, comprise primary battery and control setup, internal combustion engine generator and control setup respectively arrange a set of more than.Described logic charging unit at least comprises battery charge controller, and its design also can have the control setup of primary battery concurrently or/and the function of circuit control device of electrical generator.

The invention also discloses a kind of driving method of aforementioned wheel hub power driven system, the method controls electric device 3 and hub rotation according to the position relationship of described rotor unit 3b and stator unit 3a by power supply modulator 1 output timing drive current;

Described sequential defines according to rotation of wheel direction, 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, and each make and break period comprises power supply time domain and power-off time domain; Described power supply time domain is positioned at the 30 degree≤θ≤90 degree corresponding time period, the dynamic angle that the direction that described θ is rotor unit electromagnetic force and its normal component suffered by the axle is formed; Power supply modulator 1 not outgoing current in described power-off time domain.

Preferably, current waveform, frequency and the dutycycle be energized in time domain/period of the day from 11 p.m. to 1 a.m territory is not limit.

Preferably, described energising time domain obtains extraneous input by driving actuation means 9a, determines according to road speed.

Preferably, described energising time domain T ₁in the magnetic flux density of initial electric current, voltage or stator unit 3a obtain road speed instantaneous value by sensing device and combine the instruction that drives actuation means 9a to provide and adjust.

Preferably, described method also comprises aligning step; Described aligning step be using stator unit 3a and rotor unit 3b periodically relative, the θ of trapping gap 3d be that the state of 0 is 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, by comparing with period last time, thus know spin cycle time and the speed of a motor vehicle of corresponding wheel hub, and control outgoing current.

The invention also discloses the braking method of described wheel hub power driven system, the method by described at rotor unit convergence stator unit, rotor unit relative with the coaxial normal in stator unit place (θ is 0) and in being in away from state at least one time domain, power supply modulator 1 output timing current control electric device 3 and wheel hub braking;

Described rotor unit convergence stator unit is the 0≤θ≤30 degree corresponding time periods, the dynamic angle that the direction that described θ is rotor unit electromagnetic force and its normal component suffered by the axle is formed.

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

Described power supply modulator 1 pair of electric device 3 driving/braking energising logical relation be set to or.

Preferably, described outgoing current rate-determining steps comprises:

1) actuation means 9a is driven to power supply modulator 1 without when inputting instruction, power supply modulator dormancy;

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

3) when the speed of a motor vehicle or energising frequency reach the threshold value of setting, described power supply modulator power-off.

The one that the invention also discloses described battery-driven car configuration secondary battery increases Cheng Fangfa, the method needs for secondary battery 8b continues electric energy supplement in electric device 3 runs, or when secondary battery real-time voltage or remaining capacity value are lower than set threshold values, enable electric energy supplementary device 18 for secondary battery electric energy supplement.

The utility model, for the design feature of wheel hub power driven system, is implanted the numerical control programming logic optimized, is made it to realize efficient electricity-saving to power supply modulator.Described wheel hub power driven system 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 be intended to secondary battery electric energy supplement 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: electric device has the 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, carry out that the wheel hub electric-based system architecture that designs is simple with this scheme, combination variation, cost be low, effectively adapt to the designing requirement of high-end energy-saving electric vehicle.

Accompanying drawing explanation

Fig. 1 a is a kind of basic design schematic diagram of described wheel hub power driven system.

Fig. 1 b is a kind of basic machine perspective structure schematic diagram of described wheel hub power driven system.

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

Fig. 2 b is that the another kind of magnetic pole that rotor unit is coaxially being turned arranges schematic diagram.

Fig. 3 a is that stator unit winding two ends line is set to the schematic diagram vertical with normal of coaxially turning.

Fig. 3 b is the schematic diagram that stator unit winding two ends line is set to 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 that rotor unit Impact direction on coaxially turning decomposes and dynamic angle theta schematic diagram.

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

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

Fig. 7 b is that coaxial rotor counterclockwise rotates corresponding a kind of power on/off time domain schematic diagram.

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

Fig. 7 d is a kind of power on/off time domain schematic diagram corresponding to clickwise of coaxially turning.

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

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

Fig. 9 a is a kind of logic control constructs schematic diagram that increasing journey system is charged to secondary battery.

Fig. 9 b is the another kind of logic control constructs schematic diagram that increasing journey system is charged to secondary battery.

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

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

Figure 10 c 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, driving signal input; 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; 17, logic charging unit; 18, electric energy supplementary device; The angle of electromagnetic force and its normal component suffered by θ, rotor unit.

Detailed description of the invention

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

The physical construction of wheel hub power driven system described in the utility model comprises wheel hub 6, deceleration/torque changing apparatus 2 and electric device 3, wherein coaxially turn 3e and the wheel hub of electric device are coaxially arranged, between the two by the transmission of deceleration/torque changing apparatus, the basic design that a kind of deceleration/torque changing apparatus is coaxially independently arranged as shown in Figure 1a, as shown in Figure 1 b, it joins a kind of integral structure signal of two-wheel car as shown in Figure 10 a to the signal of its basic machine perspective structure.

The stator unit of described electric device is formed by good wire wounded core, and wherein good wire uses copper cash or copper facing aluminum core line usually, can produce the magnetic media material of stronger complementary field under a kind of outside magnetic field effect that magnetic core is known to the skilled person; The material of described rotor unit be magnet steel, nd-fe-b etc. one class well known to a person skilled in the art permanent magnet, himself intrinsic magnetic and pole orientation do not change because of external magnetic field; When rotor unit is arranged on coaxially turning, N/S magnetic pole is arranged in the same way, and does not resemble the N/S magnetic pole alternately arrangement of routine techniques employing.

See Fig. 2 a, outer rim of coaxially turning arranges a rotor unit, S pole-face is in coaxially turning, coaxially turn and interior a stator unit 3a is set, relative air gap 3d is enough little in both motions, if stator unit energising N pole-face to coaxially turning, then rotor unit convergence energising stator unit time, can be attracted and be made coaxially to turn accelerated movement; In another embodiment, the S pole anticlockwise direction of rotor unit moves stator unit in opposite directions, and corresponding thereto, both magnetic action are similarly attracting, as shown in Figure 2 b in the N pole of stator unit winding energising; It is the basic model of electric device described in the utility model that this stator unit electromagnetic pole and the attracting relation of rotor unit are arranged.

As shown in fig. 4 a, rotor unit can be analyzed to coaxial normal 10 direction F around the electromagnetic force F suffered by axle ₁₀with tangent line 11 direction F ₁₁, wherein contributive around axle to rotor unit is tangential forces F ₁₁, F and F ₁₀direction define dynamic angle theta.Rotor unit is stressed relevant in the interval of coaxially turning to stator unit electromagnetic field effect around axle, be column or double-tee stator unit to one around core, its electromagnetism line of force passes through the maximum interval of air gap, vertical to the corresponding normal 10 of coaxially turning corresponding to electromagnetic pole the two poles of the earth line 12, as shown in Figure 3 a; The two poles of the earth line that column or I-shape 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.

The initial point that rotor unit enters said stator unit electromagnetic field effect interval around axle is a F and F ₁₁the state particular point overlapped, with between effective force area of electromagnetic force state description rotor unit, be positioned at rotor unit and stator unit and be between coaxial normal 10 (θ is 0 state) is benchmark, θ is ± 90 degree lane place (described ± relative according to the hand of rotation of coaxially turning define).When θ is 90, F ₁₁for maxim; The F when θ is 0 ₁₁be 0, F ₁₀for maxim, 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 ∠ θ be 45 degree for train spacing point, be with propulsive effort F at the status and appearance of θ > 45 degree ₁₁being main, is with braking force F at the status and appearance of θ < 45 degree ₁₀be main.

The electric device actuation techniques scheme of the utility model wheel hub power driven system is: the time domain of corresponding 30 degree of power supply modulator≤θ≤90 degree is energized, all the other time domain power-off; In this energising time domain, the time domain energising should selected in degree even 75 degree, 60 degree≤θ≤90≤θ≤90 degree based on the design of economizing on electricity; Need to make full use of the design of rotor inertia of coaxially turning, the time domain can to select in degree even 30 degree, 45 degree≤θ≤90≤θ≤90 degree is energized; Due to θ in < 45 degree of states with braking force F ₁₀be main, lost economize on electricity in θ < 30 degree of state energisings and driven meaning; The current switching time domain that this preferably drives as shown in Figure 6, 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 braking technology scheme of described electric device is: the corresponding T of power supply modulator ₂and T ₀part time domain or all time domain be set to energising, described T ₂for the time domain of rotor unit around corresponding 0 degree of axle convergence stator unit≤θ≤35 degree, described T ₀for rotor unit is around the corresponding time domain of axle away from stator unit; In like manner, because θ exists considerable tangential electromagnetic force F when > 30 degree of states ₁₁, unhelpful to Brake Design.

Above-mentioned power supply modulator according to ∠ θ state to the control of switching electricity, can approximate transform be electric current sequential relative time control because power supply modulator can be sentenced by timing alignment know that θ is from 90 degree to 0 degree, i.e. (T ₁+ T ₂) time period, as long as setting T ₁with T ₂relative time, be namely similar to the switching electric control to θ corresponding state; The time domain energising of such as corresponding 90 degree to 45 degree of control θ, can briefly be set in (T ₁+ T ₂) time period initial 1/2 time domain energising, 1/2 time domain power-off afterwards; In like manner, when the time domain energising of corresponding 30 degree to 0 degree of control θ, (T can be briefly set in ₁+ T ₂) time period initial 2/3 time domain power-off, afterwards 1/3 time domain energising.(T ₁+ T ₂) be an amount relevant to rotating speed of coaxially turning, control to substitute with relative time and control to there will be deviation when electric device speed change to the state of θ, this bias correction depends on and carries out time calibration to power supply modulator respective design program.

θ is the hidden variable of a respective rotor unit and stator unit relative motion, the exact location that rotor unit is 90 degree around the corresponding θ of axle on coaxially turning be one to circular arc degree of coaxially turning, air-gap separation, stator unit around the relevant value of the parameters such as core shape and arrangement thereof, there is multiple theoretical model, should through test inhabitant area during specific design; θ is normally used to be 90 degree and θ to be the aobvious state position of 0 degree to judge the one foundation of electric device inside relative position as sensing device, the work-based logic of power supply modulator can be realized by ordinary tap control path, also CPU 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 realize.

Fig. 7 a is the partial schematic diagram 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 denotes the T that a kind of T of setting is π/8, corresponding coaxial rotor counterclockwise hand of rotation ₁, T ₂and T ₀schematic frequency domain, Fig. 7 c is the energising logical schematic of one of them cycle T.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.

Moment and the set electric current sequential of power supply modulator startup power supply directly define hand of rotation of turning, when the corresponding described rotor unit of sequential electric current to be positioned at θ be-90 degree to θ be-30 degree state areas between arrange (herein-value interval with θ be 0, to be positioned at θ be 90 degree to relatively aforementioned power supply time domain respective rotor unit is relatively define between the setting area of 30 degree to θ), corresponding clockwise direction of then turning rotates, Fig. 7 d denote a kind of structure and Fig. 7 b roughly the same, and the corresponding T of dextrorotation veer of turning ₁, T ₂and T ₀the signal region of sequential.

As shown in Figure 8 a, be provided with two stator unit 3a in coaxially turning, be provided with 8 rotor unit 3b on coaxially turning, power supply modulator will provide 8 cycles for (T respectively for two stator units in the swing circle of coaxially turning 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 10 rotor units, 12 stator units combine 12 rotor units (as shown in Figure 8 b) 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, 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 inside windings in series of such as 4 stator units, tap totally three external electric connection of power supply modulator of line are drawn in the middle of series connection winding, 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.

Power supply modulator 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, 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.

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 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, 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 the rotating speed of coaxially turning.The time sequence frequency of power supply modulator institute outgoing current, rotates the implicit (T of one-period with coaxially turning ₁+ T ₂+ T ₀) sequential effect number of times, energising mean intensity and the rotating speed of coaxially turning be mutually corresponding all physical quantity relations, when multiple impose a condition enter logic working state after, control the rotating speed that sequential energising frequency namely controls wheel hub power driven system.The rotating speed of this manual control wheel hub power driven system is by driving the input end 1d of actuation means 9a electric connection of power supply modulator to realize.

The utility model wheel hub power driven system has a kind of special state when starting, and is in same normal 10, θ is when being 0, easily occur stall when electric device inner rotator unit is just in stator unit trapping gap.As non-cooperation battery-driven car is designed to power-assist starting, can to the static start-up routine of power supply modulator respective design electric device; A simple example of so-called static start-up routine, that power supply modulator is 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 rotor unit that makes coaxially to turn is subject to same polarity and repels each other and depart from the state that θ is 0, avoids starting not smoothly.

When wheel hub power driven system needs electromagnetic force braking function, 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; The braking energising intensity that the function of electro-magnetic braking device exports for controllable power modulator, braking electrical current is larger, and electromagnetic braking effect is better.

What stator unit 3a was connected in coaxially turn 3e inside or outside and solid mechanical device arranges main points, 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 inner solid mechanical device of coaxially turning, is similar to the stator of conventional motors; Described outside solid mechanical device of coaxially turning, can be considered the local of vehicle frame.Fig. 1 b is that stator unit is arranged at inner a kind of preferred exemplary of coaxially turning, and stator unit also can be arranged on the outside of coaxially turning.

Described deceleration/torque changing apparatus 2 generally comprises 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, is preferably independently arranged at outside of coaxially turning; Deceleration/torque changing apparatus also can carry out integral design with coaxially turning, and even carries out integral design with wheel hub; But when outside non-coaxial of coaxially turning arranges deceleration/torque changing apparatus, the adjustment such as suspension, damping spring center of gravity usually need be configured, not preferred scheme.

In the utility model, 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.The controlling functions such as illuminating lamp, turning/stop, tail and number plate light, sound ring that battery-driven car routine uses, be generally made up of the switch of several electric connection of power supply, such source switch can be arranged separately, also correlation function can be implanted power supply modulator and unify programming realization.

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 still difficult meets the demand of electric vehicle electric device to discharge performance, and more sane technical scheme uses as auxiliary electric energy.

Battery-driven car described in the utility model, preferably in the technical foundation of configuration secondary battery, increases and arranges electric energy supplementary device 18 and logic charging unit 17, and the usage of trade is referred to as and increases journey system; The radical function of described logic charging unit is the real-time status of monitoring secondary battery 8b, and is secondary battery electric energy supplement under the work-based logic of setting, as illustrated in fig. 9; The real-time status of described secondary battery 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 starting electric energy supplementary device is that secondary battery supplements electricity.The function that described logic charging monitoring and DC charging control, also partly or entirely can migrate to power supply modulator to realize, shown in Fig. 9 b be a kind of monitor secondary battery real-time voltage by power supply modulator and control recharge logic, basic design schematic diagram that DC charging function is completed by logic charging unit.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 secondary battery 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.

Preference described in this specification sheets is only recommendation, some technical schemes can partly use, also can add or combine and use other mature technologys, as long as according to the magnetic action character of electric device inside, by the magnetic sequential electric current 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 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 described wheel hub power driven system, battery-driven car increase journey scheme and the distortion of derivative technology is implemented, and all should be put into protection domain of the present utility model.

Embodiment 1,

The wheel hub power driven system of battery-driven car and an electric two-wheel vehicle for coupling thereof, select vehicle frame as shown in Figure 10 a, and the girth of wheel is that 1000mm, battery pack 8b select 24V12Ah ferric phosphate lithium cell to be arranged on the inside of vehicle frame; Electric device is located at the trailing wheel of car.The 3e that coaxially turns of electric device is the annular titanium aluminium alloy circle that has turning cylinder, girth is 300mm, and the outer rim of this alloy ring is connected 8 rotor unit 3b, on the inner mechanical device be connected with dead axle of alloy ring, installs a stator unit 3a; Coaxially turn 3e and wheel hub 6 is coaxially installed, and be provided with a deceleration/torque changing apparatus 2 by some gear combination therebetween, and realized and wheel hub 6 mechanical drive by decelerations/torque changing apparatus 2, the reduction ratio of deceleration/torque changing apparatus 2 is 10:1.

Coaxially turn the S pole-face of upper 8 rotor units to hand of rotation of coaxially turning (anticlockwise direction as shown in Figure 2 b); Rotor unit is processed into the cell type junior unit that length is 16mm, and width gets maxim when not affecting installation, snugly fits into the outer rim of the 3e that coaxially turns; Stator unit 3a selects channel magnet around core, be processed into and corresponding arc of coaxially turning around core bottom, coil winding is formed around spill magnetic core 48 circle by the copper cash of a diameter 0.55mm, Installation features: fixed position stator unit being arranged on coaxially turn inside close its inner rim, spill around core top just to coaxial rotating inner edge (as shown in Figure 3 c), and coaxial rotating inner edge forms the interval of 8mm, two ends correspondence is coaxially turned occupy-place 30 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 coaxially turning through the speed limit that deceleration/torque changing apparatus is corresponding is 56 turns/s, and spin cycle time corresponding to speed limit of coaxially turning got by meter is 18ms; 8 rotor units are set on coaxially turning, (the T of the inner winding power of power supply modulator 1 pair of stator unit ₁+ T ₂+ T ₀) timing cycles minimum value T is 18ms/8 and 2.25ms; Power supply modulator setting power supply timing T ₁: (T ₂+ T ₀) be 1:6, the intensity of current that its corresponding maximum speed per hour exports is 12A when rated voltage 24V, this current value according to complete vehicle weight, the specified body weight of chaufeur is in conjunction with electric device design and through test inhabitant area, be as the criterion with experiment value.The power input 1a of power supply modulator is electrically connected the both positive and negative polarity of battery pack, Timing driver current output terminal 1b is electrically connected the coil winding of stator unit, induced signal input end 1c is electrically connected sensing unit 3c, and driving signal input 1d electrical connection drives actuation means 9a.Power supply modulator, to the energising direction of stator unit, is set to the extremely inverse hand of rotation (clockwise direction as shown in Figure 2 b) of coaxially turning of N.Sensing unit is made up of a magnetoelectric induction winding, by captive screw, sensing unit is connected in the position of coaxially turn inside close its inner rim.

The external driving actuation means 9a of this electric two-wheel vehicle adopts 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 output in real time by changing resistance, thus control the normal speed of a motor vehicle of Electrical Bicycle.The control unit of the power on/off such as illuminating lamp, turning/stop, tail and number plate light, the sound ring manipulation that Electrical Bicycle routine uses all adopts commercial products supporting.

Power supply modulator adopts pulse digit technology to realize, its nucleus module comprises the driver module of a conventional CPU and design horse power 500W, 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, only 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 work-based logic of power supply modulator setting is: be designated as benchmark coordinate and fiducial time with stator unit 3a with rotor unit 3b periodicity trapping gap 3d state that is relative, that be in same normal 10 (θ is for 0), when manpower assistant or with drive actuation means 9a to provide drive singal and sensing unit 3c perception rotor unit is that moment of 90 degree of positions, (respective rotor unit entered spill initial time relative within the scope of core two ends around axle to θ, fine values is as the criterion with experiment), it is 8A, T that power supply modulator starts output initial current ₁with (T ₂+ T ₀) ratio be 1:6 switching electricity sequential; When rotor unit around each forward of axle 7 to reference seat timestamp, power supply modulator carries out a time and returns 0 calibration and record this period, by comparing period to reference seat target with rotor unit forward last time, know the instantaneous value of this period, and further work logic is judged: if drive actuation means to power supply modulator without input instruction, power supply modulator dormancy; If the instruction driving actuation means to provide accelerates, then power supply modulator is the time period of 90 degree of positions to θ around axle at next cycle respective rotor unit 3b, continues to perform T ₁with (T ₂+ T ₀) ratio is the switching electricity sequential of 1:6, 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 12A, the logic state of above-mentioned setting will make sequential energising frequency more and more higher, and 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 1/2.25ms (correspondence coaxially turn rotating speed 56 turns/s) or the continuous 3s of power supply modulator outgoing current maintains the state of 12A time, the unconditional power-off of power supply modulator and reach the design objective of automatic speed-limiting.

Wheel hub power driven system described in the present embodiment also can configure the front-wheel of two-wheel car or front and rear wheel configures simultaneously, or is configured on single wheel cycle, comprises or be configured in the front-wheel of three-wheel vehicle, as shown in fig. lob.

Embodiment 2,

The initia start-up current of embodiment 1 is changed into: power supply modulator in 5s with I ₁intensity 8A is benchmark, the corresponding every next cycle of swing circle of coaxially turning automatically strengthen 1.2% intensity of current, from actuation means 9a further work to be driven instructions such as 6s are initial: if drive actuation means without input instruction, power supply modulator dormancy; If the instruction driving actuation means to provide accelerates, then power supply modulator is when next cycle starts energising to stator unit winding, performs T ₁with (T ₂+ T ₀) ratio is the electric current sequential of 1:6, the mean intensity of energising in real time provides by driving actuation means.

All the other are identical with embodiment 1, and this slow acceleration mode more adapts to safe design requirement.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,

Electromagnetic force braking function is set up to the electric device described in embodiment 1.

Electro-magnetic braking device is ten grades of rheostats, and power supply modulator corresponding increase speed-slackening signal input end 1e is electrically connected electro-magnetic braking device 9b, as shown in Figure 5 c; 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 it be 30 degree around axle to θ is the time period of 0 position to θ that energising time domain is set in sensing unit 3c perception rotor unit 3b.

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 12A, ten grades of electric currents are on average arranged.

Embodiment 4,

The brake logic that embodiment 3 power supply modulator exports is optimized for: the time domain that rotor unit is relative with the coaxial normal in stator unit place and be in away from state is increased, namely as startup T to the braking energising time domain of stator unit winding ₂during 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, energising Startup time is 0 beginning timing with θ; Power supply modulator is at this T ₀the braking current intensity that part time domain exports and T ₂time domain is identical.

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 may correspond to cycle sequential T and is briefly set as: at (T ₁+ T ₂+ T ₀) in sequential, the time domain power-off of initial 1/3, afterwards the time domain energising of 2/3.

Previous embodiment 3 is braked energising time domain and is set to the θ time period corresponding from 30 ~ 0 degree of positions, also can change to the time period of 15 ~ 0 degree of positions.Also can change further and stator unit is arranged at interior scheme of coaxially turning, stator unit is changed on outside vehicle frame of coaxially turning fixing, the technical design of air gap 3d requires identical.

Embodiment 5,

Corresponding two wheels 5 at the crossbeam two ends of battery-driven car.Two cover electric devices installed respectively by the wheel hub 6 of corresponding two wheels, two coaxially turn 3e respectively corresponding two wheels install near its wheel hub 6, a deceleration/torque changing apparatus 2 by some gear combination is respectively set therebetween, the reduction ratio of deceleration/torque changing apparatus is 9:1, two deceleration/torque changing apparatus 2 and two 3e and two wheel hub 6 concentrics of coaxially turning are installed, and realize two cover electric devices to the mechanical drive of two wheel hubs 6 in crossbeam two ends by two deceleration/torque changing apparatus 2.Two cover electric devices share a power supply modulator, and all the other and embodiment 4 are roughly the same.

The present embodiment can be deformed into: crossbeam is arranged the 3e that coaxially turns, its both sides respectively arrange a deceleration/torque changing apparatus 2, realizes a set of electric device by two deceleration/torque changing apparatus to two of crossbeam two ends hub drive.Can be deformed into further in addition: the wheel hub of each wheel in crossbeam both sides configures two cover electric devices respectively and a deceleration/torque changing apparatus 2, two overlaps electric device by a deceleration/torque changing apparatus to a hub drive.

The present embodiment arranges the technical scheme of wheel hub power driven system at crossbeam, and the crossbeam of the two-wheel car that easily extensible power designs coaxially walks abreast at two-wheeled, three-wheel vehicle two trailing wheels and the crossbeam of four-wheeled two front-wheels or two trailing wheels are installed.There is differential because of during two of crossbeam two ends wheel turning drivings, speed limit or the differential program by the built-in turning driving of power supply modulator 1 should be designed especially.

Embodiment 6,

Being set up by the stator unit 3a of embodiment 5 electric three-wheel truck electric device is two, be arranged on the ad hoc mechanical device of the outside vehicle frame of the 3e that coaxially turns, the titanium aluminium alloy 3e that coaxially turns is fitted together to the rotor unit 3b of 8 alternate settings in inside with integrated forming technique.Changing into around core of two stator units is cylindrical, and number of turns of winding is identical with embodiment 1, cylindrical vertical to the normal 10 of coaxially turning corresponding around core two ends line 12 during installation, as shown in Figure 3 a; Two stator units are arranged on the side of 3e outside of coaxially turning, install near the annular position of the outer rim 9mm that coaxially turns, the mechanical spacing that technical requirements and hand of rotation adjoin rotor unit 3b is identical, the winding electric of two stator unit 3a is connected in series, at common in 3e swing circle and its well-distributed 8 the rotor unit generation electromagnetic forces of coaxially turning.In the present embodiment, drive power supply time domain be defined as θ from 90 degree to 30 degree the corresponding time period, brake power time domain be defined as θ from 30 degree to 0 degree the corresponding time period.

Two stator unit 3a also can change into by the present embodiment to be installed at 3e both sides space symmetr of coaxially turning, and winding electric is connected in series, and the electromagnetic pole direction of two stator units is identical.

Embodiment 7,

In the design basis of embodiment 1, by spill around the top of core inverse hand of rotation deflection 5 degree angles of coaxially turning, the two poles of the earth line following wind axle of rotor unit 3b hand of rotation of turning deflects 5 degree of angles, and all the other and embodiment 1 are roughly the same.This distortion is because forming the angle of inclination of electromagnetic field after the winding energising of stator unit 3a inside, more meet rotor unit with dynamicmodel periodically attracting in 3e rotation of coaxially turning, acquired implementation result is better than embodiment 1.

In addition, also sensing unit 3c can be changed is arranged on the vehicle frame 4 of front-wheel, annular region any part in front-wheel 5 cycle in the face of sensing unit 3c, one piece of permanent magnet is set specially, make the induction winding of sensing unit 3c periodically obtain induced signal with wheel 5 rotates, acquired implementation result and embodiment 1 are roughly the same.

In order to save copper material further, the stator unit winding of embodiment 1 can also be changed into two-wire wounded core, one of them winding loop is formed around spill magnetic core 48 circle by the copper cash of a diameter 0.55mm, powers for power, electric connection of power supply modulator 1; Another winding loop is formed around spill magnetic core 15 circle by the copper cash of a diameter 0.20mm, is used as to substitute the independent sensing unit 3c arranged, as the judgment signal source of the adjoint rotating inner part relative position of coaxially turning of rotor unit 3b.

Embodiment 8,

Design the wheel hub power driven system that a kind of 12 stator unit 3a and 12 rotor unit 3b combines.

The mechanical device that the 3e that coaxially turns is inner ad hoc arranges 12 stator unit 3a, stator unit around core be I-shape, copper wire diameter 0.8mm, number of turns of winding 45 encloses, during installation, I-shape overlaps 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 ring part bit interval of coaxial rotating inner edge 6mm; The titanium aluminium alloy 3e that coaxially turns is fitted together to the rotor unit 3b of 12 alternate average settings in inside with integrated forming technique, N is extremely all just to the axle of coaxially turning.

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 external loop (being similar to the Δ shape connection of the inner winding of conventional motors) of composition 3 lines, 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 1 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; 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.What the present embodiment can utilize the external two-phase of stator unit 3a winding to feed back further compares differetial-potential difference between two, as the signal source that stator unit and rotor unit relative position differentiate, substitutes the independent sensing unit arranged.

Deceleration/the torque changing apparatus 2 of the present embodiment configuration and reduction ratio and embodiment 1 roughly the same, by decelerations/torque changing apparatus 2 realization and wheel hub 6 mechanical drive; The driving of electric device power time domain be defined as θ from 90 degree to 60 degree the corresponding time period, can briefly be set as: at (T ₁+ T ₂+ T ₀) in sequential, initial 1/6 time domain energising, 5/6 time domain power-off afterwards.Braking power supply time domain is briefly set as: at (T ₁+ T ₂+ T ₀) in sequential, initial 5/12 time domain power-off, afterwards 7/12 time domain energising.

The reverse direction of this wheel hub power driven system rotates, by power supply modulator, electric device is defined to the moment and the electric current sequential that stator unit winding are started to power supply against rotation of wheel direction, sequential current start correspond to θ be-90 degree to θ be-30 degree intervals arrange (θ described herein-value interval, be using θ be 0 state as benchmark coordinate and define according to the inside relative position of aforementioned rotation of wheel direction to rotor unit and stator unit).

Embodiment 9,

Wheel hub power driven system described in embodiment 8 is arranged on two front-wheels of electric four-wheel vehicle shown in Figure 10 c, power supply modulator 1 relative set is that 2 road electric currents export and are electrically connected the stator unit 3a winding of two 3e inside of coaxially turning respectively.There is differential when turning driving in the present embodiment two electric drive wheels, should design speed limit especially, or to the built-in differential program of power supply modulator 1.The battery pack of four-wheeled described in the present embodiment selects 48V100Ah zinc-nickel cell 8b, and installs increasing journey system additional to this four-wheeled, and the electric energy supplementary device 18 increasing journey system selects 48V1000Ah aluminium air primary battery system; The mode of operation of electric energy supplementary device is set to synchronous working when four-wheeled starts, and continues floating charge to battery pack in electric device runs, and logic charging unit 17 is designed to constant potential 54V, limits the mode of operation of maximum charging current 20A.

Wheel hub power driven system described in the present embodiment independently can assemble battery-driven car, and the battery-driven car of central power formula also can be coordinated to install, and described electric device is arranged at an at least corresponding wheel hub, and electric energy is saved on multi-path ground.

Embodiment 10,

Journey system is increased to the battery-driven car described in embodiment 9 and carries out technology enforcement distortion.

Described increasing journey system is with methyl alcohol generator system for electric energy supplementary device 18, and 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, work-based logic is: when the real-time voltage monitoring battery pack drops to 46V, automatic startup methyl alcohol generator system is ferric phosphate lithium cell group 8b electric energy supplement, its charging mode of operation is that constant potential 56.2V limits maximum current 20A, automatically stops charging when charging current is less than 3A.

Embodiment 11,

Wheel hub power driven system is implemented in the accurate single-wheel of coaxial compact installation two wheel hubs.

The structure of coaxial compact installation two wheel hubs is considered as accurate single-wheel, and arrange the 3e that coaxially turns between two wheel hubs 6 of two wheels, each wheel hub is all built-in with deceleration/torque changing apparatus 2, coaxially turns by deceleration/torque changing apparatus to both sides hub drive; The rotor unit 3b that all built-in integrated design of coaxially turning manufactures, stator unit 3a and sensing unit 3c is arranged on inside of coaxially turning, and power supply modulator 1 and battery pack 8 are arranged on vehicle frame optional position.

The present embodiment, owing to electric drive wheel being designed to the accurate single-wheel structure of two coaxial compact installations of wheel hub, makes the electric running effect of the accurate single-wheel of deformation design more stable, is applicable to a wheel or multiple battery-driven car of taking turns.

The present embodiment can technology deformation design further, deceleration/torque changing apparatus 2 is built in the scheme of wheel hub 6, changes into the outside that deceleration/torque changing apparatus 2 is built in the 3e that coaxially turns.

Embodiment 12,

On the basis of embodiment 9 and embodiment 10, increase journey system to electric four-wheel vehicle design is two.

Described two electric energy supplementary device 18 increasing journey system 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 zinc-nickel cell group 8b 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, by the programming Control of power supply modulator 1, realizes the monitoring to the real-time voltage/remaining capacity of zinc-nickel cell group and charging control function; When two increasing journey system is zinc-nickel cell group electric energy supplement, preferentially enable internal-combustion engine generator system 18b, the fuel that internal-combustion engine generator system uses is any; When internal-combustion engine generator system can not work, continuing to enable aluminum air battery system 18a is zinc-nickel cell group electric energy supplement.

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 (9)

1. the wheel hub power driven system of a battery-driven car, it is characterized in that, described wheel hub power driven system comprises wheel hub (6), deceleration/torque changing apparatus (2), power supply modulator (1), drives actuation means (9a) and at least a set of electric device (3); Described electric device (3) comprises coaxially turn (3e), stator unit (3a) and permanent magnet rotor unit (3b); Described coaxially turn (3e) is an annular machinery circle with turning cylinder, it is at least arranged 1 rotor unit (3b); When multiple rotor unit is arranged around coaxially turning, interval arranges and pole orientation is identical; Described stator unit (3a) at least arranges one at close fixed position of coaxially turning, and the relative air gap of the periodicity that itself and rotor unit are formed (3d) is not more than 70mm; Described coaxially turning is arranged with wheel hub (6) coaxial (7), and by decelerations/torque changing apparatus (2) and described wheel hub mechanical drive;

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), the inside winding of sequential current output terminal electrical connection stator unit, driving signal input electrical connection drives actuation means (9a).

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

3. wheel hub power driven 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. wheel hub power driven 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 turn (3e) or outer setting one sensing unit.

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

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

7. a battery-driven car, it is characterized in that, it is containing, for example the electric device described in any one of claim 1 ~ 6, described battery-driven car comprises vehicle frame (4), battery pack (8) and at least one wheel (5), and described battery-driven car at least arranges a set of described wheel hub power driven system; Described battery pack comprises disposable primary battery (8a) or the secondary battery (8b) used that can repeatedly charge, or both combine setting.

8. battery-driven car according to claim 7, it is characterized in that, electric energy supplementary device (18) is installed additional during described battery-driven car configuration secondary battery (8b), described electric energy supplementary device comprises the arbitrary primary battery of material (8a) and combines with control setup, or be that internal combustion engine generator and system control device combine, or both combine setting; Electric energy supplementary device is by logic charging unit (17) electrical connection secondary battery.

9. battery-driven car according to claim 8, is characterized in that, described logic charging unit (17) is independent to be arranged, or its partial logic function or whole logic function is integrated in power supply modulator (1).