CN105811695A - Power system for electric car, and driving, braking and electric energy supplement method for power system - Google Patents

Power system for electric car, and driving, braking and electric energy supplement method for power system Download PDF

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Publication number
CN105811695A
CN105811695A CN201410852410.9A CN201410852410A CN105811695A CN 105811695 A CN105811695 A CN 105811695A CN 201410852410 A CN201410852410 A CN 201410852410A CN 105811695 A CN105811695 A CN 105811695A
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China
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electric
power supply
stator unit
unit
electric device
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刘粤荣
姚飞
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NANJING MENGQI INTELLIGENT TECHNOLOGY Co Ltd
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NANJING MENGQI INTELLIGENT TECHNOLOGY Co Ltd
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Priority to CN201410852410.9A priority Critical patent/CN105811695A/en
Publication of CN105811695A publication Critical patent/CN105811695A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a power system for an electric car, and the system comprises an electric device, a battery pack, and a range increasing system. The electric device comprises a power modulator, a speed reduction/torque changing device, a drive operating device, a fixed body, and a rotating body. The rotating body is an annular mechanical ring with a rotating shaft, wherein the rotating body is provided with a plurality of rotor units made of magnetic conduction dielectric materials at intervals. The fixed body is a mechanical disc with a fixed shaft, and the interior of the fixed body is at least provided with one stator unit which is installed at a position close to the rotating body. The fixed boy and the rotating body are arranged coaxially, and an air gap between the fixed body and the rotating body is not greater than 45mm. The speed reduction/torque changing device is coaxial with the rotating body, and is disposed outside the rotating body. The power modulator obtains a user instruction through the drive operating device/an electromagnetic braking device, correspondingly outputs a time sequence current, and achieves the driving/braking of the electric device. The range increasing system of the power system supplements power for the battery pack.

Description

The dynamical system of electric motor car and driving, braking, electric power replenishing method
Technical field
The present invention relates to the dynamic design field of electric motor car, particularly to the increasing journey method for designing of a kind of power supply modulator producing sequential electric current and the driving of electric device driven, braking method and supporting electric motor car.
Background technology
The current main flow in electric bicycle market is the motor that adapted is arranged on wheel shaft, and motor designs is outer rotor form, and outer rotor, by the wheel rim mechanical attachment of spoke with wheel, makes rotation of wheel by motor torque.When specifically manufacturing, the market mainstream is that spoke is carried out integrated manufacture with the wheel rim of wheel, and outward appearance is Electric Motor Wheel, and spoke is deformed into power transmission rib, by power transmission rib, motor torque is transferred to wheel rim.Domestic electric machine industry is intended to be used in the technology successful experience of electric bicycle, is extended to the hub-type electric machine that electric automobile uses.
The wheel hub motor technology that electric automobile uses is also known as wheel inner electric machine technology, power, transmission and brake unit are all incorporated in wheel hub by its maximum feature exactly, wheel hub motor technology is not new things, as far back as 1900, first Porsche is just manufactured that the electric automobile of front-wheel equipment wheel hub motor, at 20 century 70s, this technology is applied in fields such as Mine haul cars, and current electric automobile industry focus is exploitation passenger car wheel hub motor.
The structure of conventional wheel hub motor is except hub body at present, component weight is far beyond hub body (generally comprising wheel hub motor, brake disc, brake callipers, Active Suspensions motor, suspension, damping spring etc.), and the deadweight of wheel hub is required higher by automobile, the aluminium alloy wheel hub of conventional sedan is ratio conventional steel wheel hub on average light about 2kg only, and when speed is 60km/h, oil-saving rate can reach 5%-7%;If therefore industry specialists subtracts pound it is believed that motor can not be multiple, the technical meaning of wheel hub inner electric machine is very limited;Only weighing with one index of power density of unit volume, what existing motor did not reach far away wheel hub inner electric machine is typically designed requirement.
Fig. 1 a is the structural representation of a kind of traditional 4 pole permanent magnet brush direct current inner rotor motors, permanent magnet 13 magnetic pole replaces symmetry arrangement, apart certain interval 14 along the inner edge N/S determining body 5, some windings are arranged on turns in 6 annular regions relative with permanent magnet, outer confession unidirectional current is energized to winding by mechanical contact reversing arrangement, rotating excitation field can be internally formed and the rotation that makes to turn, export power by rotating shaft.
Permanent-magnet brushless DC electric machine obtains fast development in recent years, it is mainly made up of motor body, position detector and power inverter controller, permanent magnet is generally located on upper, N/S magnetic pole alternately certain interval arrangement apart of turning, some windings are arranged on surely internal, position detector constitutes electronic commutator together with inverter and replaces mechanical contact reversing arrangement, and winding energising forms rotating excitation field and makes rotation of turning.PWQ technology that control aspect is commonly used, the degree of approximation that the subject matter of this permanent-magnet brushless DC electric machine is deformed sine wave controls, the employing PWQ technology modulation although its power is powered, but in control thought method, it is limited to the traditional design of motor interior rotating excitation field.
Mileages of continuation is short is the weakness of present stage electric motor car, industry generally believes before high energy battery enters commercialization, mileages of continuation by increasing number of batteries lifting electric motor car is unrealistic, therefore automobile market main flow is to develop double source hybrid vehicle oily, electric at present, its design philosophy is: use the power of motor when vehicle starting or low speed, automobile is transformed to the power using internal combustion engine when reaching certain speed threshold, thus reduce automobile starting or during low speed because of exhaust pollution that fuel oil not exclusively causes at combustion in IC engine;Its technical foundation architectural feature is: fuel tank 19 provides fuel output power to internal combustion engine system 20;The parallel electric motor system 21 increasing a set of electrical connection set of cells 8 on this traditional design basis, motor is provided electric energy output power by set of cells;Two-way power shares machine driven system 23 by oil, electric power conversion device 22, is delivered on wheel hub by the power of internal combustion engine or motor, and the design of this kind of double-source dynamic can be referred to as oil, electric power parallel system, and its base structure is illustrated as shown in Figure 1 b.
Summary of the invention
The purpose of the present invention, it is in that to overcome the defect of existing electronic DC motor for vehicles internal structure and power supply mode, there is provided a kind of internal structure be different from conventional motors design electric device and sequential current-modulation scheme, a kind of range-extending technique scheme based on pure electric vehicle is provided simultaneously, simple in construction, technique easily realizes.
The dynamical system of a kind of multi-source electric motor car provided by the invention, described dynamical system includes electric device 13, set of cells 8 and increases journey system 16;Described electric device includes power supply modulator 1, deceleration/torque changing apparatus 2, drives actuation means 9a, determines body 5 and turn 6;Described turning is an annular machinery circle with rotation axle, at least provided with a rotor unit 3b being made up of magnetic conductive media solid or software moulding material on it;Described to determine body be a mechanical disk with fixing axle, internal at least provided with a stator unit 3a and be arranged close to the position turned;Described determine body and turn concentric arrange, both are relative, and air gap 3d is not more than 45mm;Described deceleration/torque changing apparatus is coaxially disposed with turning;
Described power supply modulator includes power input 1a, sequential current output terminal 1b and driving signal input 1d, the both positive and negative polarity of power input electrical connection set of cells 8, the inside winding of sequential current output terminal electrical connection stator unit, driving signal input electrical connection drives actuation means;Described power supply modulator is by driving actuation means to obtain the driving instruction of user, and in the corresponding time sequence inside winding output current to stator unit, makes the driving/braking realized deceleration/torque changing apparatus of turning of electric device;Described set of cells is the repeatable secondary cell used that repeatedly charges.
Preferably, the rated power of described power supply modulator is less than 25kW.
The rotor unit 3b of described electric device be arranged at turn on include being entrenched in turn outer rim, inner edge or internal and with implementation integrated design manufacture of turning;Rotor unit is installed under the premise turned and does not limit shape not affecting;Several rotor units alternate setting when turning installation, it is preferable that uniformly arrange.
Preferably, the stator unit 3a/ rotor unit 3b of described electric device can determine body 5/ turn 6 position replace design each other, coordinate relevant apparatus design also can obtain motorized effect.
Preferably, the deceleration/torque changing apparatus 2 of described electric device includes some gear combination, its drive input and mechanical attachment of turning, its transmission output and the rotary apparatus mechanical attachment outside electric device;Deceleration/torque changing apparatus 2 is independently arranged, or is arranged at, with 6 integrated coaxials of turning, the outside turned.
Preferably, the stator unit 3a of described electric device is formed around the magnetic core of magnetic media material by the good conductor loop of least one set, and its Inside coil winding can arbitrarily connect by series, parallel, or forms multi-thread external loop by drawing centre tap between different windings;Externally the mode of electrical connection can be the loop of two lines or multi-thread composition;
Preferably, arranging around core or several combinations of the stator unit of described electric device, it is preferred for obtaining maximum with its inside winding energising through the magnetic flux of air gap 3d.
Described electric device also includes sensing device, and described sensing device includes some sensing unit 3c that can sense described rotor unit 3b and stator unit 3a relative position;Described sensing unit electrically connects with the transducing signal input 1c of described power supply modulator;Described electric device at least interiorly or exteriorly arranges a sensing unit what turn;
Preferably, described sensing device also includes the inside winding of stator unit, and described internal winding includes surrounding the winding of stator unit magnetic core and by the multi-thread external loop being in series between some stator unit windings.
Preferably, described electric device also includes electro-magnetic braking device 9b, described power supply modulator 1 also includes brake signal input 1e, and it electrically connects electro-magnetic braking device, obtains the brake instruction of user and in the corresponding time sequence winding output current to the stator unit of electric device by electro-magnetic braking device.
The driving actuation means 9a of described electric device may be configured as conventional rotating handles formula, plug-type stick or other any manual control modes, including outside be set to remote control.
In the present invention, DC source is converted to sequential electric current by the power supply modulator of described electric device, make the stator unit in electric device be limited at power supply modulator set time domain periodic be energized and power-off.
The increasing journey system 16 of dynamical system of the present invention includes logic charging device 17 and electric energy supplementary device 18;The input 17a of described logic charging device electrically connects electric energy supplementary device, and its outfan 17b electrically connects the both positive and negative polarity of set of cells 8;Described increasing journey system in the logic working state set as set of cells electric energy supplement.
Preferably, the electric energy supplementary device 18 of described increasing journey system 16 combines with controlling device for the arbitrary one-shot battery of material, and described control device at least includes one-shot battery and starts device;
Preferably, the electric energy supplementary device 18 of described increasing journey system 16 combines with controlling system and device for internal combustion engine generator;Described internal combustion engine generator at least includes internal combustion engine and electromotor, and described control system and device at least includes fuel tank 19 and startor of internal combustion engine;The fuel of described internal combustion engine is any;
It is furthermore preferred that the electric energy supplementary device 18 of described increasing journey system 16 is formed with controlling device, internal combustion engine generator and system and device combination setting by one-shot battery.
The logic charging device 17 of described increasing journey system 16 at least includes charged with direct current device, can be independently arranged, or its part logic function or whole logic function is integrated in power supply modulator 1;The design of described logic charging device 17, what also can have one-shot battery concurrently controls device or/and the function of circuit control device of electromotor.
The present invention contains the electric motor car of any of the above-described dynamical system, and described electric motor car includes one or more wheel;Described electric motor car is at least provided with a set of electric device, and the wheel of described installation electric device includes single-wheel and the quasi-single-wheel structure of coaxial compact installation two wheel.
The invention also discloses the electric device driving method of a kind of previous power system, the method is controlled electric device by power supply modulator by the position relationship output timing electric current of described rotor unit 3a and stator unit 3b and rotates;
Described sequential defines according to rotation of wheel direction, described sequential electric current combines the rotor unit number on turning according to stator unit electromagnetic field useful effect interval on turning and arranges several make and break periods, and each make and break period includes power supply time domain and power-off time domain;Described power supply time domain is positioned atThe corresponding time period, described inFor the dynamic angle that rotor unit is formed with stator unit and the determined normal of axle around axle the normal determined with axle, described inDetermined around stator unit electromagnetic force direction coincidence status suffered by axle tangential direction and its for rotor unitValue;In described power-off time domain, power supply modulator 1 does not export electric current.
Preferably, the electric current of described power supply time domain not notch shape, frequency and dutycycle.
Preferably, described energising time domain T1The magnetic flux density of interior initial electric current, voltage or stator unit is obtained rotating speed instantaneous value of turning and combines the driving actuation means 9a instruction provided and adjust by sensing device.
Preferably, described method also includes aligning step;Described aligning step be by stator unit and rotor unit periodically trapping gap is relative, be in same normal state (It is 0) as benchmark coordinate and fiducial time, when rotor unit goes to reference seat timestamp every time, power supply modulator carries out a time and returns 0 calibration and record this cycle time, by comparing cycle time to reference seat target with rotor unit forward last time, thus knowing spin cycle time of turning, and control output electric current.
The invention also discloses the electric device braking method of described dynamical system, the method according to described rotor unit convergence stator unit, rotor unit relative with the same normal in stator unit place (Be 0) and rotor unit and stator unit be in away from, at least one time domain of state, making power supply modulator 1 output timing electric current control electric device braking by manipulating electro-magnetic braking device 9b;
Described sequential defines according to rotation of wheel direction;Described rotor unit convergence stator unit isThe corresponding time period of state, described inFor the dynamic angle that rotor unit is formed with stator unit and the determined normal of axle around axle the normal determined with axle, described inFor rotor unit turn around axle tangential direction with its suffered by stator unit electromagnetic force direction coincidence status determinedValue.
Preferably, described method also includes aligning step, and described aligning step willIt is 0 as benchmark coordinate and fiducial time, knows rotor unit convergence/relatively/away from the location status of stator unit by sensing device.
Described power supply modulator to electric device drive energising and braking energising logical relation be set to or.
Preferably, described output electric current rate-determining steps includes:
1) when driving actuation means 9 to power supply modulator 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 set, described power supply modulator power-off.
The invention also discloses the electric power replenishing method of the dynamical system of described electric motor car, the method needs to continue electric energy supplement for set of cells 8 in electric device 13 runs, or when set of cells real-time voltage or remaining capacity value are lower than set threshold values, enabling increasing journey system 16, making electric energy supplementary device 18 is set of cells charging electric energy supplement by logic charging device 17.
The present invention is directed to the design feature of electric device and power supply modulator is implanted Technology of NC Programming, specify that the work-based logic driving the power supply timing cycle, so as to realize efficient electricity-saving.This design can bring two obvious benefits: one is that stator unit in electric device is defined and periodically powers on, need not the time domain dormancy of work, save electric energy;Two is that power supply modulator regularity is interrupted, and effectively reduces the energising accumulated heat of electric device.
The electric device of dynamical system of the present invention is applied to electric motor car can use one-shot battery or secondary cell, described one-shot battery includes the battery of all disposable electric discharges and various fuel cell, for instance zinc-air battery, aluminium-air cell and hydrogen converting electrical energy etc. can provide the device of disposable electric energy;Described secondary cell is rechargeable battery after including all electric discharges, for instance lithium battery, plumbous battery, metal hydrogen storage battery etc..In view of the energy storage density of current electric motor car market institute adapted secondary cell is relatively low, the present invention is directed to this state of the art devise be intended to electric energy supplement increasing journey system, efficiently solve the known subject matter that full charge endurance of electromobile is short.
It is an advantage of the current invention that: electric device has the energy-saving effect that sequential power supply control brings, increase the subject matter that journey system can effectively overcome full charge endurance of electromobile short, simple with the power system architecture that this scheme is designed, modular design is diversified, cost is low, adapts to the designing requirement of high-end energy-saving electric vehicle.
Accompanying drawing explanation
Fig. 1 a is the structural representation of a kind of traditional 4 pole permanent magnet brush direct current inner rotor motors.
Fig. 1 b is the oily electric power base structure schematic diagram of conventional double source hybrid vehicle.
Fig. 2 a is a kind of base structure schematic diagram of dynamical system of the present invention.
Fig. 2 b is the motor body base structure schematic diagram of dynamical system of the present invention.
Fig. 2 c is the another kind of base structure schematic diagram of dynamical system of the present invention.
Fig. 2 d is the partial structurtes schematic diagram that the present invention is applied to tricycle.
Fig. 3 a is that stator unit column type is set to the schematic diagram vertical with normal of turning around core.
Fig. 3 b is the schematic diagram that stator unit column type is set to around core overlap with normal of turning.
Fig. 3 c be stator unit matrix around core top just structural representation to rotating inner edge.
Fig. 4 a is that rotor unit rotating shaft forms dynamic angleAnd suffered electromagnetic force Directional Decomposition schematic diagram.
Fig. 4 b is the view that rotor unit and stator unit are in coaxial normal.
Fig. 5 a is the groundwork logical schematic of power supply modulator.
Fig. 5 b is the block combiner schematic diagram of a kind of digital technology logic realizing power supply modulator.
Fig. 5 c is the work-based logic schematic diagram that power supply modulator sets up electro-magnetic braking device input.
Fig. 6 a is the power supply modulator output electric current time diagram in periodically break-make.
Fig. 6 b is the one energising logical schematic of a corresponding stator unit one rotor unit of combination.
Fig. 7 a is a kind of partial structurtes schematic diagram of stator unit 8 rotor units of combination.
Fig. 7 b is the power on/off time domain schematic diagram of swing circle corresponding power manipulator of turning.
Fig. 7 c is the one energising logical schematic of a corresponding stator unit 8 rotor units of combination.
Fig. 8 is the partial structurtes schematic diagram of two stator unit 8 rotor units of combination.
Fig. 9 is the partial structurtes schematic diagram of 12 stator unit 12 rotor units of combination.
Accompanying drawing identifies:
1, power supply modulator;1a, DC supply input;1b, sequential current output terminal;1c, induced signal input;1d, train signal input;1e, brake signal input;2, deceleration/torque changing apparatus;3a, stator unit;3b, rotor unit;3c, sensing unit;3d, air gap;4, vehicle frame;5, body is determined;6, turn;7, wheel shaft;8, set of cells;9a, driving actuation means;9b, electro-magnetic braking device;10, coaxial normal;11, turn tangent line;12, winding two extreme direction line;13, electric device;14, interval;15, permanent magnet;16, journey system is increased;17, logic charging device;The input of 17a logic charging device;17b, logic charging device outfan;18, electric energy supplementary device;19, fuel tank;20, internal combustion engine system;21, electric motor system;22, oily, electric power conversion device;23, machine driven system;Around axle normal angle.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail further.
Referring to Fig. 2 a, the obvious technical characteristic of the dynamical system of the dynamical system of multi-source electric motor car of the present invention and conventional oil electricity hybrid vehicle is distinctive in that: one, increasing journey system 16 is electrically connect with set of cells 8, its function is only setting logic state as set of cells electric energy supplement, unrelated with the Driving force system of electric motor car and dynamic transfer system: they are two years old, increase journey system electric energy supplementary device 18 can be internal combustion engine generator combination system or one-shot battery combination system, or its combination;Its three, the electric device base structure of dynamical system is different from control mode.
As shown in Figure 2 b, being clearly distinguished from of its frame for movement and general permanent magnet brush or brushless direct current motor is in that the base structure of a kind of motor body of electric device of the present invention:
1, stationary part: electromagnetic force is derived from the separate unit of good wire wounded core, described good wire generally uses copper material or copper-plated metal, magnetic core uses conventional magnetic media material, such magnetizing mediums be known to the skilled person a kind of under the action of a magnetic field internal state change and produce the material of higher complementary field.
2, rotor: rotor unit 3b material adopts the magnetic conductor of non-permanent magnet, such magnetic conductor be known to the skilled person a kind of under the action of a magnetic field internal state change and produce the material of opposing magnetic field, it arranges on turning and is absent from N/S pole orientation, and several alternate settings are also absent from N/S magnetic pole and are arranged alternately.Rotor unit load magnetic is that no matter the energising of stator unit winding is positive and negative direction electric current, and the electromagnetic force that rotor unit senses magnetisation and is subject to is all attracting owing to forming electromagnetic field in the energising of stator unit winding and sensing magnetisation.
As shown in fig. 4 a, when a rotor unit is arranged on the outer rim turned, what stator unit was positioned close to rotating inner edge determines body region, and both relative air gaps that moves are sufficiently small, during the stator unit that then rotor unit is energized around axle convergence, electromagnetic attraction can be subject to and make accelerated motion of turning;Electromagnetic force F suffered by rotor unit can be analyzed to coaxial normal 10 direction F10With around axle tangent line 11 direction F11, wherein that rotor unit is contributive around axle is F11.Rotor unit is relevant in the interval turned to stator unit electromagnetic field effect around axle institute stress, it is 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 turned (parallel with corresponding tangent line 11), as shown in Figure 3 a;The two poles of the earth line that column also may be configured as electromagnetic pole around core overlaps to the corresponding normal turned, and as shown in Figure 3 b, this set-up mode is selected when being generally the combination arrangement of multiple stator unit.For matrix around core, its electromagnetic force is interval to the effect of rotor unit, is positioned at matrix around core top just to the two ends scope turned, as shown in Figure 3 c.
Rotor unit is on turning when axle moves, and itself and the determined normal of axle are a dynamic angle with stator unit and the determined normal of axleIt overlaps with suffered electromagnetic force F action direction around the tangential direction of axle convergence stator unit is a special state, now angleFor definite valueThe useful effect of electromagnetic force suffered by rotor unit is interval, be positioned atBe 0 state it is benchmarkIn interval, position (described ± relatively to define according to the direction of rotation turned).WhenWhen being 0, F10For maximum, F11Be 0, now to rotor unit around axle without contribution, as shown in Figure 4 b.When rotor unit because normal broken through by rotary inertia, stator unit energising gives rotor unit and remains suction, turns and will become retarded motion.To this real-time status, routine techniques is to be continued to run with by control electric current paraphase, generally use brush or electronic installation and unidirectional current is modulated to energising direction checker, thus supervening the conventional arts such as current phase, induced current and corresponding phase angle position control thereof;But the magnetic effect of above basic model is energized with stator unit winding, direction is unrelated, is not suitable for paraphase, and therefore the control mode of electric device is different from conventional art.
Rotor unit around axle fromForExtremelyIt is in the interval of 0 state, F11And F10Be shifting a pair kinematic variables, its theoretical strong and weak conversion withFor separation,State interval show as with driving force F11It is main, andState interval show as with brake force F10It is main.The drive scheme of electric device of the present invention, principle is to use F11Being main state interval energising, between all the other state areas, power-off continues to run with to make full use of the rotary inertia turned;Additionally, F also can be used10The state being main is interval and rotor unit deviate from stator unit (From 0 toFor) state interval energising, make electric device obtain braking;Turn the real-time transmission by deceleration/torque changing apparatus, corresponding driving/braking state is transferred to the outside of electric device.
The technical scheme of electric device of the present invention driving power supply is: power supply modulator is correspondingState time domain energising, all the other time domain power-off;When main design goal is for economize on electricity, it is preferable thatEven Corresponding time domain energising;When needing to make full use of the rotary inertia turned, it is preferable thatEvenCorresponding time domain energising;CauseState with considerable F10,State energising has lost optimization design sense to driving to rotate;The break-make time domain of this driving electric current described as shown in Figure 6 a, wherein T1For conduction time, T2And T0It is power-off time, (T1+T2+T0) constitute Timing driver current cycle T.The technical scheme of electric device of the present invention braking power supply is: power supply modulator correspondence T2And T0Part time domain or all time domain be set to energising, described T2Corresponding around axle for rotor unitTime domain, described T0For the rotor unit corresponding time domain away from stator unit, it is preferable that this braking time domain be due to?ExtremelyThere is considerable tangential force F in corresponding states11, Brake Design is unhelpful.
Above-mentioned basisThe switching electric control of corresponding states, in the scope that industrial design error allows, it is possible to approximate transform is relative time control, becauseBe 0 state andState is aobvious state, and power supply modulator is easily sentenced by timing alignment and knownFromTo 0, i.e. (T1+T2) time period, as long as set T1With T2Relative time, it is right to be namely equivalent toThe switching electricity temporal scalable of corresponding state;Such as controlCorrespondingExtremelyTime domain energising, can briefly be set as: at (T1+T2) time period initial 1/2 time domain energising, 1/2 time domain power-off afterwards;In like manner, control is worked asCorrespondingTime domain to 0 is energized, and can briefly be set as: at (T1+T2) time period initial 2/3 time domain power-off, 1/3 time domain energising afterwards;(T1+T2) it is an amount relevant to rotating speed of turning, determine with the relative time of timing cyclesState there will be deviation when speed change state, due to power supply modulator correspondence each cycleBe 0 state be provided with time calibration, must give and correcting in time in next cycle.
After stator unit setting (including combination) scheme is determined,Aobvious state position be determined simultaneously, during actual design, it is common that useAobvious state position judge the one foundation of the internal relative position of electric device as sensing device;Exact position 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.Power supply modulator exports the work-based logic of driving or stalling current accordingly can be controlled circuit realization by ordinary tap, it is possible to adopt CPU programming in conjunction with power model group circuit realiration, or the special chip realization that employing large scale integrated circuit technology manufactures.
Electric device is combined by a stator unit 3a simple analysis example of the upper rotor unit 3b that turns, rotor unit is not at the electromagnetic force valid interval of stator unit around the axial period most of the time, should first consider the power-off time T in electric current timing cycles T during programming0, and then preferred power-off time T2With driving T conduction time1, improving the utilization rate of electric energy, Fig. 6 b is that a kind of of this simple analysis example drives energising sequential logic schematic diagram.
Electric device is combined by a stator unit 3a analysis case of n rotor unit 3b, electromagnetic action is there is with n rotor unit 3b in stator unit 3a at the swing circle π that turns, power supply modulator preferably sends the energising sequential that n cycle is T, and the correspondence swing circle π that turns has n T1, n T2And n T0Sequential working logic, power supply modulator is proposed high requirement by this modular design.Rotor unit not arranges The more the better, and its number n on turning is limited to the interval corresponding space occupy-place of suffered stator unit electromagnetic force useful effect, and otherwise the sequential current cycle of power supply modulator correspondence output can overlap.
Fig. 7 a is electric device by a stator unit combines the structural representation of 8 rotor units, stator unit turn a 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 (T1+T2+T0) cycle, it is π/8 Ts corresponding with direction of rotation of turning that Fig. 7 b denotes a kind of T1、T2And T0Signal region, Fig. 7 c is the energising logical schematic of one of them cycle T.
As shown in Figure 8, the body 5 of determining of electric device is provided with two stator unit 3a, and turning 6 is provided with 8 rotor unit 3b, and in the swing circle turned, power supply modulator to provide 8 cycles for (T for two stator units respectively1+T2+T0) sequential electric current, power supply modulator is proposed higher designing requirement by this combination.Optional 8 stator units combine 10 rotor units, 12 stator unit 12 rotor units (as shown in Figure 9) of combination further, etc..In theory when H stator unit and n rotor unit modular design, if power supply modulator is to H the discrete power supply of stator unit winding, need correspondence n*H electric current sequential of design, i.e. n*H (T1+T2+T0) electric current sequential, programming is by sufficiently complex;Therefore in the utility system of multiple stator unit 3a designs, preferred H the electrically coupled in series combination of stator unit winding, or H stator unit winding is divided into some groups of external power supply manipulators, the inside windings in series of such as 4 stator units, tap totally three external electric connection of power supply manipulators of line are drawn in the middle of series connection winding, technically it is also with the difference of the differetial-potential that these three lines compare between two, as the signal source that a kind of rotor unit differentiates with stator unit relative position, substitute the sensing unit being independently arranged.
In theory, it is also possible in one rotor unit of installation and the combination of several stator units of turning, though but this equivalent arrangements can implement technically, but because the cost of stator unit is of a relatively high, not preferred scheme.
Power supply modulator can use ordinary tap circuit design or pulse digit technology to realize, the fundamental functional modules of the latter generally comprises power converting circuit, interior storage has microprocessor and the signal input and output circuit of working procedure, can pass through sensing unit 3c feedback signal and correspondingly control to drive the sequential electric current of module output;The groundwork logic of power supply modulator such as Fig. 5 a shows, and Fig. 5 b is a kind of block combiner schematic diagram realizing digital technology logic.
The work-based logic transformation directive signal of power supply modulator usually obtains from being connected in the sensing unit turned interiorly or exteriorly, sensing unit is not limited to use magnetoelectric induction winding or Hall element, it is used as photoelectric encoder etc., when rotor unit moves around axial period, sensing unit can obtain the rate of change of electric current (voltage) and feed back to power supply modulator, and power supply modulator is sentenced, according to this induced signal, the relative position knowing rotor unit 3b and sent electric current sequential accordingly.According to the operating accuracy of sensing unit 3c and reliability requirement, sensing unit can interiorly or exteriorly arrange one or several turning, even be deformed into from above-mentioned multiple stator unit windings in series become multi-thread circuit feedback mode and use stator unit 3a Double-wire ring around winding feedback mode obtain work-based logic transformation directive signal, now the induced signal input 1c of power supply modulator is built-in accordingly, and its response processes the working procedure logic to power supply modulator and proposes high requirement.Development due to large scale integrated circuit technology, it is achieved the programming technique of above-mentioned work-based logic conversion is that industry professional person is known, institute is it is to be understood that sequential current cycle, energising subset time domain and amplitude change and the basic design parameter such as power-off time domain therebetween.
To sum up, the power supply modulator of described electric device is a logic power switching system, sequential power cycles/frequency reflects the unit interval inner stator unit 3a energization action number of times to rotor unit 3b, energising amplitude required for this time sequence frequency remote definition electric device rotating speed and stator unit or electromagnetic force (coming from power supply modulator to be energized to the winding of stator unit), energising amplitude is more big, the energising of unit interval inner stator unit is more big to the active force of rotor unit, effect number of times is more many, and the rotating speed that its result reflects electric device is more fast.The time sequence frequency of the exported electric current of power supply modulator, rotates cycle implicit (T with turning1+T2+T0) sequential effect number of times, energising mean intensity and electric device rotating speed be mutually corresponding all physical quantity relations, therefore when, after many entrance logic working states that imposes a condition of power supply modulator, the frequency controlling sequential energising namely controls speed.This Artificial Control electric device rotating speed is by driving the input 1d of actuation means 9a electric connection of power supply manipulator to realize.
When electric device needs to brake, power supply modulator is set up brake signal input 1e accordingly and is electrically connected with electro-magnetic braking device 9b, as shown in Figure 5 c;From safe design theory, it is not necessary to the power saving for braking energising too much considers;Electro-magnetic braking device may be configured as a continuous or multistage rheostat, and its function is control the stalling current intensity that power supply modulator exports, and stalling current is more big, and braking effect is more good.
The stator unit of described electric device interior arranges main points turning, it is to make rotor unit relative air gap 3d of formed effective generation magnetic action 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 more is conducive to magnetic energy effect to transmit, but the too small easy generation Mechanical Contact of air gap, need to comprehensively hold rigidity and the machining accuracy of material during design.
Described deceleration/torque changing apparatus 2 is generally formed by some gear combination, can reach change the rotating speed of machine driving input or change the technical goal of torque by the combination of some gears, the design of deceleration/torque changing apparatus is more, it is preferable that be coaxially disposed in outside of turning with turning;Deceleration/torque changing apparatus both can be independently arranged, it is also possible in outside implementation integration global design of turning;Even it is deformed into and outside rotary apparatus disjunctor design;But turn outside non-coaxial deceleration/torque changing apparatus is set time, generally need to configure suspension, damping spring etc. and adjust center of gravity, not preferred scheme.
The traditional product driving actuation means 9a of described electric device is rheostat or the potentiometer of an easily manipulation deformation design, artificial, with technical development in recent years, the special actuation means being much based upon on photosensitive, Hall control principle basis reaches its maturity, this series products is typically designed as conventional rotating handles formula, also may be designed as plug-type stick or other any manual control modes, including remote control.
Market mainstream electric motor car is configuration secondary cell, and owing to the specific energy of secondary cell is low, plumbous battery is typically only 40VAh/Kg, and lithium battery is generally 120VAh/Kg, and the course continuation mileage joining car owes ideal;The advantage of one-shot battery is that self discharge is little, specific energy is high, the aluminium-air cell specific energy that Recent experimental room makes has reached more than 8000VAh/Kg, but this kind of metal electrode one-shot battery is generally with the defect that internal resistance is big, 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 electric motor car still, more sane technical scheme is to use as auxiliary electric energy.
Dynamical system of the present invention is the increasing journey system 16 that arranges in the technical foundation that electric device configures secondary cell, and described increasing journey system includes logic charging device 17 and electric energy supplementary device 18;The major function of described logic charging device is the real-time status of monitoring set of cells 8, and is set of cells electric energy supplement under the work-based logic set, as shown in Figure 2 a;The real-time status of described set of cells at least includes real-time voltage or remaining capacity, the nominal operating voltage of the lead battery of such as certain electric motor car is 48V, its normal working voltage interval is 42.0V to 53.2V, when setting lead battery and supplementing the threshold voltage of electricity as 47V, as long as the real-time voltage that logic charging device monitors set of cells drops to 47V, namely automatic or manual startup electric energy supplementary device 18 supplements electricity for set of cells.The function that described logic charging monitoring and DC charging control, can also partly or entirely migrate to power supply modulator to realize, shown in Fig. 2 c be a kind of by power supply modulator 1 monitor set of cells real-time voltage and control recharge logic, base structure schematic diagram that DC charging function is completed by logic charging device 17.The electric energy supplementary device of described increasing journey system, it is possible to control device for the arbitrary one-shot battery of material and DC charging and combine, for instance adopt aluminium-air cell.
Electric energy supplementary device can also be that fuel tank, internal combustion engine, electromotor and fairing combine, and the combination of such device is relative maturity technology, and described fuel includes but not limited to methanol, ethanol, gasoline, diesel oil, natural gas, gaseous state or liquified hydrogen etc.;Known in the industry, the state burning that one important feature of internal combustion engine is 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, owing to the increasing journey systemic-function of electric motor car of the present invention is only for set of cells electric energy supplement, internal combustion engine may be provided at invariable power operating mode, even if the energy source of electric energy supplementary device is to adopt automotive fuel, the burning and exhausting of fuel is also very low.
Two class electric energy supplementary devices of described increasing journey system, can be combined in electric motor car design and use.
Described preference is only recommendation, and some technical schemes can be combined and use, it is possible to part uses or adds other mature technologies.As long as the magnetic current energy feature according to electric device, by power supply modulator being designed the sequential electric current being accurately controlled and configuring increasing journey system, the basic fundamental target of the present invention program can be realized.
The professional person that electric motor car and motor technology are relatively understood in depth, is not difficult on scheme basis of the present invention, ground deformation implementation present invention of drawing inferences about other cases from one instance.Such as on existing pulse direct-current motor basis, market, converted by the change of sensing mode and controller current sequence and partly implement the present invention.The electric current sequential control method of power supply modulator of the present invention, the base structure of dynamical system, electric power replenishing method and derivative technology deformation implementation thereof, all should be put into protection scope of the present invention.
Embodiment 1,
The dynamical system of a kind of assistance type electro-tricycle, including electric device 13, set of cells 8 and increasing journey system 16;Electric device is arranged in the wheel hub of front-wheel, and its partial structurtes and supporting vehicle frame 4 are as shown in Figure 2 d;The set of cells 8 of this electric motor car selects the plumbic acid colloid battery of nominal 48V38Ah, is arranged on the inside of vehicle frame;Increasing journey system with methanol generator system for electric energy supplementary device 18, generator system is combined by methanol fuel tank, methanol internal combustion engine, electromotor and fairing;The logic charging device 17 increasing journey system is mainly made up of functional modules such as set of cells real-time voltage monitoring modular, constant voltage current limit charging module and work-based logic control modules, its input 17a electrically connects electric energy supplementary device, and its outfan 17b electrically connects the both positive and negative polarity of set of cells.
It is 1000mm that this electric motor car arranges the wheel circumference of electric device, and the body 5 of determining of electric device is designed as the disk with dead axle, and dead axle exterior mechanical parameter is with reference to the design data of conventional electric two-wheel vehicle wheel shaft, and is used for replacing conventional two wheeler wheel shaft and installing;Turn and 6 be one there is the annular titanium-aluminium alloy circle rotating axle, girth 100mm, be sleeved on disk determine the outside of body with determining body concentric;At the connected rotor unit 3b of outer rim of turning, determine one stator unit 3a of installation on body at disk;Outside of turning is provided with one by the deceleration/torque changing apparatus 2 of some gear combination, and itself and concentric of turning are installed, as shown in Figure 2 b;The speed reducing ratio of deceleration/torque changing apparatus is 10:1, is provided with some mechanical holes outside it, and one end perforation of some spokes is fixing, and the wheel hub inner edge of the connected wheel of the other end makes electric device realize and wheel drive.
The rotor unit 3b material of electric device selects market to be prone to the ferromagnet of buying, is processed into box-like junior unit, and Design of length is that 10mm, width and thickness take maximum when not affecting installation, snugly fits into the outer rim turned;Stator unit 3a selects market to be prone to the channel magnet of buying around core, more magnetic domain is there is inside this ferromagnet, 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 turning around core bottom, coil windings is formed around spill magnetic core 50 circle by the copper cash of a diameter 0.60mm, Installation features: body region determined by the disk that stator unit is arranged close to rotating inner edge 8mm, captive screw is fixed, spill is turned circular arc around the arc correspondence of core and is installed, top is just to rotating inner edge (as shown in Figure 3 c), two ends correspondence is turned 30 degree of mechanical angles of occupy-place.
Setting electric device and join car maximum speed per hour 20km/h and 5.6m/s (5.6 turns/s), meter is picked up the car and taken turns corresponding spin cycle time is 180ms;6 speed limits passing through deceleration/torque changing apparatus 2 correspondence of turning of electric device are 56 turns/s, corresponding spin cycle time 18ms, (the T that namely electric device is powered by power supply modulator1+T2+T0) timing cycles minima T is 18ms;Power supply modulator adopts general pulse digital technology to realize (controlling circuit also by conventional electrical to realize), maximum overload capacity 350W, sets T1: (T2+T0) for 1:35, the sequential power-up period T that namely speed limit is corresponding1Value 0.5ms, all the other 17.5ms are off-position;The current intensity of power supply modulator correspondence the max speed output is 18A, and this current value designs and through test inhabitant area in conjunction with electric device according to complete vehicle weight, the specified body weight of driver.The power input 1a of power supply modulator electrically connects the both positive and negative polarity of set of cells 8, Timing driver current output terminal 1b electrically connects the coil windings of stator unit 3a, induced signal input 1c electrically connects sensing unit 3c, train signal input 1d electrical connection and drives actuation means 9a.Sensing unit 3c is made up of a magnetoelectric induction winding, and sensing unit is connected in the position of turn inside close its inner rim by captive screw.
What electric device was external drives actuation means 9a to adopt the rotating potentiometer of stepless variable resistance, Conventional hand grips formula, by the Aided design with electronic control circuit, can pass through to change resistance and control the current intensity of power supply modulator output in real time, thus controlling the normal speed of electric two-wheel vehicle.The control unit 2 of the power on/off manipulations such as the conventional use of illuminating lamp of electric motor car, turning/stop, tail and number plate light, sound ring, all adopts commercial products supporting.
The work-based logic that the power supply modulator of electric device sets as: with stator unit 3a and rotor unit 3b, periodically trapping gap 3d is relative, be in same normal 10 (Be 0) state be designated as benchmark coordinate and fiducial time, when manpower assistant or drive actuation means 9a provide driving signal and rotor unit 3b go to normal direction angle coaxial with reference seat target around axle 7ReachMoment (about 15 degree, respective rotor unit enters the initial time relative within the scope of core two ends of spill, and this fine values is through test inhabitant area), power supply modulator starts output 10A electric current;When rotor unit 3b goes to reference seat timestamp around axle 7 every time, power supply modulator carries out a time and returns 0 calibration and record this cycle time, compare cycle time by going to reference seat target last time with rotor unit, know the instantaneous value of this cycle time, and according to real-time status, further work logic is judged: if driving actuation means 9a to power supply modulator without input instruction, power supply modulator dormancy;If driving the actuation means 9a instruction provided is accelerate, then power supply modulator goes to around axle at next cycle respective rotor unitIn the moment of position, perform T1With (T2+T0) ratio is the switching electricity sequential of 1:35, the mean intensity of energising is by driving actuation means to provide in real time;If driving actuation means to maintain the power supply modulator output electric current state close to 18A, the logic state of above-mentioned setting is by more and more higher for the sequential energising frequency making power supply modulator, in corresponding wheel each cycle, the electromagnetic force number of times of rotor unit 3b is got more and more by stator unit 3a, and speed is more and more faster;When sequential be energized frequency maintain the state of 18A higher than set 1/18ms (correspondence turn 56 turns/s of rotating speed) or the power supply modulator output continuous 3s of electric current time, the unconditional power-off of power supply modulator 1 and reach the design object of automatic speed-limiting.
Increase the work-based logic that sets of logic charging device 17 of journey system as: when the real-time voltage monitoring set of cells drops to 47V, automatically starting methanol generator system is set of cells 8 electric energy supplement, its charging working method is that constant voltage 56.4V limits maximum current 8A, is automatically stopped charging when charging current is less than 1.0A.
Electric device described in the present embodiment, wheel and the front-wheel of two wheeler, trailing wheel and the front and back wheel that also can be arranged on single block accordingly are arranged simultaneously;Corresponding each wheel can be installed by a set of electric device, it is possible to much more even a corresponding wheel is installed two sets and to be overlapped electric device;Increasing journey system described in the present embodiment is due to the fuel that employing methanol is electric energy supplementary device, and methanol internal combustion engine is arranged on invariable power operating mode, discharges very low;The power-assisted course continuation mileage of electro-tricycle described in the present embodiment, depends primarily on the capacity of methanol that fuel tank carries rather than set of cells.
Embodiment 2,
nullThe electric energy supplementary device that embodiment 1 increases journey system is changed into aluminum air one-shot battery by methanol generator system,Power supply modulator adopts pulse digit technology to realize: power supply modulator 1 nucleus module includes the driving module of a conventional CPU and design power 500W,Its refinement work-based logic is as shown in Figure 5 b,Wherein impulse transfer modulate circuit has been mainly pulse signal has been converted to step signal,Pulse signal generator mainly produces required pulse signal,Secondly through peaker output spike pulse,It is then passed through amplitude limiter circuit to be filtered by the negative half period of spike,Remaining positive axis spike,It is integrated adding up with the integrating circuit of integrated transporting discharging composition,Plus voltage comparator and control circuit,Just constitute complete step pulse signal,Each element of circuit is carried out parameter adjustment,Thus being met the step signal of work-based logic requirement.Power supply modulator is at T1In energising sequential, driving module is made to produce the pulse current that a series of amplitudes are successively decreased, pulse frequency 30KHz with sequential by control chip (CPU).
The function of the logic charging device 17 increasing journey system is set as in the way of constant voltage, current limit set of cells 8 is charged, and its work-based logic instruction is sent by power supply modulator 1;Power supply modulator has the function to the monitoring of set of cells real time capacity and signal processing concurrently, there are the functional modules such as timer, signal trigger and logic processor inside, its ancillary equipment includes discharge capacity verifying attachment, and the track remodelling that this discharge capacity verifying attachment shows in commercial special discharge capacity instrument, extraction discharge capacity forms;The work-based logic increasing journey system is: set of cells 8 is carried out the once differentiation stream size of test in every 5 minutes by discharge capacity verifying attachment, when the real time capacity of set of cells is when more than the 45% of nominal capacity, signal trigger module does not work, and logic charging device should be static mutually;When real time capacity≤45% nominal capacity of set of cells, signal trigger module sends signal, and it is set of cells 8 electric energy supplement that logic processor module sends signal enabling aluminum air battery system 18 accordingly by logic charging device 17.
The electric boosted increasing journey of the present embodiment electro-tricycle depends on the storage capacitance of aluminium-air cell;Described aluminium-air cell, it is also possible to be replaced into zinc-air battery or hydrogen storage device for converting electric energy.
All the other are identical with embodiment 1, and previous embodiment 1 power supply modulator starts the position moment to the energising of stator unit 3a winding, it is also possible to change into rotor unit 3b around axle extremelyReach 14.5 degree of corresponding states.
Embodiment 3,
Embodiment 2 basis uses T2Electric device is set up electromagnetic force braking function by time domain energising.
Power supply modulator increases a brake signal input 1e accordingly and electrically connects electro-magnetic braking device 9b, and as shown in Figure 5 c, electro-magnetic braking device is ten grades of rheostats;When Artificial Control electro-magnetic braking device sends brake signal, power supply modulator cuts off T1The electric current of corresponding sequential, starts T2Time domain is energized, and energising braking time domain is set in sensing unit 3c perception rotor unit 3b around axle extremelyForArriveIt it is the time period of 0 degree of position.
The stalling 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, sets the current intensity that exports as: chopped-off head 5A, final stage 16A, ten grades of electric currents are on average arranged.
The present embodiment is owing to having additional the soft brake type brake unit of electromagnetism, and slowing effect is mild.
Embodiment 4,
The brake logic of embodiment 3 electric device is optimized for further: power supply modulator starts T2While time domain energising, by T0The work-based logic of part time domain synchronizes to be transformed to energising, this T described0The numerical value of part time domain and (T1+T2) equal, T0Energising Startup time withIt it is 0 beginning timing;Power supply modulator is at this T0Current intensity that part time domain exports and T2Time domain is identical, and this scheme can strengthen the electromagnetic force braking effect of electric device.
The braking energising of stator unit winding is added the present embodiment rotor unit and stator unit is in the time domain away from state;This braking energising time domain can also corresponding cycle sequential T and be briefly set as: at (T1+T2+T0) in sequential, initial 3/8 time domain power-off, afterwards 5/8 time domain energising.
The present embodiment has been greatly reinforced the braking effect of electromagnetic brake, and driving safety coefficient is higher.Aforementioned braking time domainForTime period to 0 degree of position can also change toThe time period of degree position.
Embodiment 5,
The electric motor car dynamical system of Electric Motor Wheel it is respectively mounted at crossbeam two ends.
In the present embodiment, each Electric Motor Wheel is correspondingly arranged a set of deceleration/torque changing apparatus 2, determines body 5 and turn 6, and the machinery of two Electric Motor Wheel shares a power supply modulator;The underlying parameter of electric device designs with reference to embodiment 1 and adjusts, and wheel circumference is 1500mm, and each turning 6 is one and has and rotate the annular alloy steel ring that axle, girth are 500mm, and inner homogeneous is chimeric 8 rotor unit 3b respectively;The coil windings of stator unit 3a is adjusted to 60 circles, and the turn mechanical angle of occupy-place of correspondence is 45 degree, with steel ring inner edge spacing 6mm;Deceleration/torque changing apparatus 2 and coaxial integrated design and installation of turning, speed reducing ratio is 9:1.
Electric device continues to select the design to matching vehicle speed limit 20Km/h and 5.6m/s (3.7 turns/s), turn through the speed limit that deceleration/torque changing apparatus is corresponding be 33.3 turns/s, it is 30ms that meter takes spin cycle time corresponding to speed limit, because stator unit 3a with 8 rotor unit 3b, electromagnetic force occurs respectively in a swing circle of turning, stator unit winding is driven power supply time domain T by power supply modulator1ForFrom 22.5 degree toIt it is the time period of 15 degree of positions;Power supply modulator selects large scale digital logic switch integrated circuit to realize, maximum overload capacity 1200W.
The work-based logic that power supply modulator sets is similar with the method for embodiment 1, by the sequential of period regulation record energising frequency, would know that real-time speed, when sequential be energized frequency higher than 1/3.75ms (correspondence turn 33.3 turns/s of rotating speed) time, the unconditional power-off of power supply modulator 1 and reach the design object of automatic speed-limiting.
Set of cells in the present embodiment selects 55.5V40Ah ferric phosphate lithium cell, increases journey system and arranges similar with embodiment 1;Power supply time domain is driven also to may be set toFrom 22.5 degree toIt it is the time period of 3.75 degree of positions.
The present embodiment dynamical system is than precedent, and two In-wheel-motor driving can make electrical vehicular power double;The described design being respectively mounted Electric Motor Wheel at crossbeam two ends, it is possible to be two trailing wheels of the parallel two wheeler of coaxial two-wheeled or tricycle, it is also possible to be two front-wheels of carriage or two trailing wheels;The present embodiment electric motor car is installed at same crossbeam two ends because of two Electric Motor Wheel, and during turning driving, two Electric Motor Wheel exist differential, should be specifically designed speed limit, or by the differential program to the built-in turning driving of power supply modulator 1, make turning driving more stable.
Embodiment 6,
Being set up by the embodiment 5 often stator unit 3a overlapped in electromechanical device and be two, alloy is turned and is fitted together to the rotor unit 3b of 8 alternate settings with integrated forming technique in inside.Two stator units change cylinder into around core, umber of turn is all 60 circles, cylindrical vertical with corresponding normal 10 of turning around core two ends during installation, as shown in Figure 3 a;Two stator units are arranged on the center of internal plane normal of turning, determine body annular position near rotating inner edge 5mm, technology requires that the mechanical spacing that two stator units adjoin rotor unit 3b with direction of rotation is identical, the winding of two stator units is electrically connected in series, common 8 rotor unit generation electromagnetic forces equally distributed with it in swing circle of turning.The present embodiment is because have employed two stator unit 3a, and power effect doubles.
Set of cells in the present embodiment selects 66V50Ah ferric phosphate lithium cell, increases journey system 16 and arranges similar with embodiment 2;Power supply modulator correspondence spin cycle time of turning is identical;Power supply time domain is driven to be defined asThe corresponding time period from 22.5 degree to 10 degree, braking power supply time domain is defined asFrom the time period of 7 degree to 0 degree.
Two stator unit 3a of the present embodiment can also change into and installing at both sides space symmetr of turning, and winding is electrically connected in series, and electromagnetic pole direction is identical.
Embodiment 7,
A kind of dynamical system of electric four-wheel vehicle, electric device is arranged on two front-wheels;The set of cells 8 of this electric motor car selects 48V100Ah plumbic acid colloid battery, increases the journey system 16 electric energy replenishment control mode to set of cells, is set to electric energy supplementary device 18 and persistently set of cells is charged in electric motor car runs.
In the dynamical system of the present embodiment, the body of determining of electric device is connected with fixing axle, and the wheel hub inner edge with wheel of turning of electric device is connected;12 stator unit 3a are set inside body 5 determining, stator unit is cylindrical around core, and umber of turn is adjusted to 55 circles, overlaps with corresponding normal 10 of turning around core two ends line 12 during installation, and be uniformly distributed at the annular position near rotating inner edge 5mm, as shown in Figure 3 b;Titanium-aluminium alloy turn 6 with integrated forming technique in inside alternate chimeric 12 rotor unit 3b.
The winding of 12 stator units in body of determining of electric device is electrically connected in series, tap is drawn in the middle of the winding of every 4 stator units, externally form 3 lines and form electric external loop (being similar to the Δ shape connection of the internal winding of conventional motors), 12 rotor unit generation electromagnetic forces equally distributed with it in swing circle of turning;The electric connection mode correspondence of power supply modulator is designed as three wire circuit, its time sequential pulse electric current mean allocation in each loop that three lines are constituted exported accordingly;The present embodiment can compare differetial-potential difference between two further with the external biphase feedback of stator unit 3a winding, as the signal source that interior location differentiates, substitutes the sensing unit being independently arranged.
The method that the driving of the electric device of the present embodiment, brake control mode and stator former unit are arranged at inside of turning is similar, drives power supply time domain to be defined asFromArriveThe corresponding time period, can briefly be set as: at (T1+T2+T0) in sequential, initial 1/6 time domain energising, 5/6 time domain power-off afterwards;Braking power supply time domain is defined asFromTo 0 degree and rotor unit away from the corresponding (T of stator unit1+T2) time period, can briefly be set as: at (T1+T2+T0) in sequential, initial 1/3 time domain power-off, afterwards 2/3 time domain energising.
In the dynamical system of the present embodiment, the electric energy supplementary device 18 increasing journey system 16 both can be fuel generator system, it is also possible to be one-shot battery system;Owing to the working method of electric energy supplementary device is to work asynchronously when electric motor car starts, and to set of cells floating charging in electric device runs, logic charging device 17 is designed as constant voltage 54V, limits the working method of maximum charging current 10A;There is differential, the differential program of the reply built-in turning driving of power supply modulator because of two front-wheels in the present embodiment, make turning driving more stable when turning.
Embodiment 8,
The sensing unit 3c of electric device described in embodiment 1 is connected in inside the 3e that turns of electric device, sensing unit 3c is arranged on the vehicle frame 4 of front-wheel by the present embodiment, in the front-wheel cycle in the face of the annular region any part of sensing unit 3c, one piece of permanent magnet is set specially, the sensing winding making sensing unit periodically obtains induced signal with rotation of wheel, and acquired implementation result is similar with embodiment 1.
Embodiment 9,
The dynamical system that a kind of quasi-single-wheel structure electric car uses, described quasi-single-wheel structure is two wheels of coaxial compact installation, and the mechanical structure portion of electric device is located on the axle between two wheels;Set of cells selects 24V10Ah ferric phosphate lithium cell, and the electric energy supplementary device 18 increasing journey system 16 uses aluminum air battery system, and the working method of logic charging device 17 arranges similar with embodiment 7;8 rotor unit 3b that the 6 all built-in integrated designs of turning of electric device manufacture, internal body 5 of determining of turning is provided with two electrically coupled in series stator unit 3a, stator unit and between turning air gap 3d be 6mm, outside of turning arranges two deceleration/torque changing apparatus 2 being coaxial therewith, and the speed reducing ratio of deceleration/torque changing apparatus is 12:1;The outside of each deceleration/torque changing apparatus is provided with the business of some power transmission muscle, and its one end is connected by the outside of machinery with deceleration/torque changing apparatus 2, the wheel rim of the connected wheel of the other end, makes electric device realize the machine driving to coaxial compact two wheels of installation.
In the present embodiment, power supply time domain is driven to be defined asFromArriveSpending the corresponding time period, braking power supply time domain is defined asFromTo 0 degree of corresponding time period, actuation means 9a is driven to be set to remote control.
Described in the present embodiment coaxial compact installation two wheel quasi-single-wheel structure can further the front-wheel of front and back two wheeler, trailing wheel, former and later two take turns or tricycle front-wheel implement, make electric motor car travel effect more stable.
Embodiment 10,
The stator unit winding of embodiment 1 is changed into two-wire wounded core, two windings are formed by two 0.60mm copper cash wounded core 50 circles, one of them winding electric connection of power supply manipulator is powered for power, another winding is used as to substitute the sensing unit being independently arranged, as the rotor unit 3b differentiation signal source with position of rotation of turning.
Additionally the winding of stator unit can be optimized further and be designed as: power power winding by the copper cash of a diameter 0.60mm around spill magnetic core 50 circle form, sensing winding is formed around spill magnetic core 18 circle by the copper cash of a diameter 0.18mm, can more save copper material.
Embodiment 11,
Design the dynamical system of a kind of double; two electric four-wheel vehicle increasing journey system 16.
The supporting vehicle frame 4 of this electric four-wheel vehicle and machinery partial structurtes are as shown in Figure 2 d;The electric device 13 of dynamical system is selected to turn described in embodiment 7 and is provided with 12 rotor unit 3b on 6, determines body 5 and be internally provided with the structure of 12 stator unit 3a as motor body, power supply modulator 1 adopts general pulse digital technology to realize, and set driving, brake logic logic control function are similar with embodiment 7.
Set of cells 8 selects 96V100Ah ferric phosphate lithium cell.
The electric energy supplementary device 18 of double; two increasing journey systems 16 is combined by aluminum air one-shot battery system 18a (including aluminium-air cell and control system thereof) and internal-combustion engine generator system 18b (including fuel tank, internal combustion engine, electromotor and fairing and control system thereof) respectively;The functional module of the logic charging device 17 of double; two increasing journey systems includes charging module and controls module, charging module is provided with two-way input, 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;The charging module outfan electrical connection set of cells 8 of logic charging device 17, its work startup is realized logic control by the control module of logic charging device 17 by electric connection of power supply manipulator 1.
The logic charging device 17 programming Control by power supply modulator 1, realize monitoring and the charging control function of the real-time voltage/remaining capacity to set of cells 8, described in its control method to aluminum air battery system 18a and the control method to internal-combustion engine generator system 18b such as embodiment 1 and embodiment 2;When double; two increasing journey systems 16 are set of cells 8 electric energy supplement, preferentially enable 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 example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to embodiment, it will be understood by those within the art that, technical scheme is modified or equivalent replacement, without departure from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.

Claims (15)

1. the dynamical system of an electric motor car, it is characterised in that described dynamical system includes electric device (13), set of cells (8) and increases journey system (16);Described electric device includes power supply modulator (1), deceleration/torque changing apparatus (2), drives actuation means (9a), determines body (5) and turn (6);Described turn (6) are one and have the annular machinery circle rotating axle, at least provided with a rotor unit (3b) being made up of magnetic conductive media solid or software moulding material on it;Described to determine body (5) be a mechanical disk with fixing axle, internal at least provided with a stator unit (3a) and be arranged close to the position turned;Described determine body and turn concentric arrange, both are not more than 45mm by relative air gap (3d);Described deceleration/torque changing apparatus is coaxially disposed with turning;
Described power supply modulator includes power input (1a), sequential current output terminal (1b) and driving signal input (1d), the both positive and negative polarity of power input electrical connection set of cells, the inside winding of sequential current output terminal electrical connection stator unit, driving signal input electrical connection drives actuation means;Described power supply modulator is by driving actuation means to obtain the driving instruction of user, and in the corresponding time sequence inside winding output current to stator unit, makes electric device realize driving/braking;Described set of cells (8) is the repeatable secondary cell used that repeatedly charges.
2. dynamical system according to claim 1, it is characterized in that, described deceleration/torque changing apparatus (2) is formed by some gear combination, its drive input and (6) mechanical attachment of turning, transmission output and the rotary apparatus mechanical attachment outside electric device;Deceleration/torque changing apparatus (2) is independently arranged, or is arranged at, with (6) integrated coaxial of turning, the outside turned.
3. dynamical system according to claim 1, it is characterized in that, the stator unit (3a) of described electric device (13) is formed around the magnetic core of magnetic media material by the good conductor loop of least one set, by connected in series or in parallel between the winding that its several combination obtains, or form multi-thread external loop by drawing centre tap between different windings.
4. dynamical system according to claim 1, it is characterized in that, described electric device (13) also includes sensing device, and described sensing device includes some sensing units (3c) that can sense described rotor unit (3b) and stator unit (3a) relative position;Described sensing unit electrically connects with the transducing signal input (1c) of described power supply modulator;Described electric device at least interiorly or exteriorly arranges a sensing unit what turn.
5. dynamical system according to claim 4, it is characterized in that, the sensing device of described electric device (13) also includes the inside winding of stator unit (3a), and described internal winding includes surrounding the winding of stator unit magnetic core and by the multi-thread external loop being in series between some stator unit windings.
6. dynamical system according to claim 1, it is characterized in that, described electric device (13) also includes electro-magnetic braking device (9b), described power supply modulator also includes brake signal input (1e), it electrically connects electro-magnetic braking device, obtains the braking instruction of user and in the corresponding time sequence inside winding output current to the stator unit (3a) of electric device by electro-magnetic braking device.
7. dynamical system according to claim 1, it is characterised in that described increasing journey system (16) includes logic charging device (17) and electric energy supplementary device (18);The input (17a) of described logic charging device electrically connects electric energy supplementary device (18), and its outfan (17b) electrically connects the both positive and negative polarity of set of cells (8);Described increasing journey system in the logic working state set as set of cells electric energy supplement.
8. the dynamical system according to claim 1 or 7, it is characterised in that the electric energy supplementary device (18) of described increasing journey system (16) combines with controlling device for one-shot battery;Or combine for internal combustion engine generator and system and device;Or both combine setting.
9. the dynamical system according to claim 1 or 7, it is characterized in that, the logic charging device (17) of described increasing journey system (16) at least includes charged with direct current device, it is independently arranged, or its part logic function or whole logic function is integrated in power supply modulator (1).
10. containing the electric motor car of the arbitrary dynamical system of claim 1~9, described electric motor car includes the electric motor car of one or more wheel and electronic, autocycle;The wheel of described electric motor car is at least provided with a set of described electric device, and the wheel of described electric motor car includes single-wheel and the quasi-single-wheel structure of coaxial compact installation two wheel.
11. based on the electric device driving method of the arbitrary dynamical system of claim 1~9, the method is controlled electric device by power supply modulator by the position relationship output timing electric current of described rotor unit (3b) and stator unit (3a) and rotates;
Described sequential defines according to rotation of wheel direction, described sequential electric current combines the rotor unit number on turning according to stator unit electromagnetic field useful effect interval on turning and arranges several make and break periods, and each make and break period includes power supply time domain and power-off time domain;Described power supply time domain is positioned atThe corresponding time period, described inFor the dynamic angle that rotor unit is formed with stator unit and the determined normal of axle around axle the normal determined with axle, described inFor rotor unit around axle tangential direction with its suffered by electromagnetic force direction overlap determinedValue;
In described power-off time domain, power supply modulator (1) does not export electric current.
12. method according to claim 11, it is characterized in that, the magnetic flux density of electric current initial in described energising time domain, voltage or stator unit (3a) is obtained rotating speed instantaneous value of turning and combines the instruction driving actuation means (9a) to provide and adjust by sensing device.
13. method according to claim 11, it is characterised in that described method also includes aligning step;Described aligning step be rotor unit is relative with the coaxial normal in stator unit place,Be 0 state as benchmark coordinate and fiducial time, when each forward of rotor unit to reference seat timestamp, power supply modulator (1) carries out a time and returns 0 calibration and record this cycle time, by comparing cycle time to reference seat target with rotor unit forward last time, thus knowing the spin cycle time turned, and control output electric current.
14. the electric device braking method based on the arbitrary dynamical system of claim 1~9, at described rotor unit convergence stator unit, rotor unit, and rotor unit relative with the coaxial normal in stator unit place and stator unit are in away from least one time domain of state the method, and output timing electric current controls electric device braking;
Described rotor unit convergence stator unit isThe corresponding time period of state, described inFor the dynamic angle that rotor unit is formed with stator unit and the determined normal of axle around axle the normal determined with axle, described inFor rotor unit around axle tangential direction with its suffered by electromagnetic force direction overlap determinedValue.
15. the electric power replenishing method based on the arbitrary dynamical system of claim 7~9, the method needs to continue electric energy supplement for set of cells (8) in electric device (13) runs, or when set of cells real-time voltage or remaining capacity value are lower than set threshold values, enabling increasing journey system (16), making electric energy supplementary device (18) is set of cells charging electric energy supplement by logic charging device (17).
CN201410852410.9A 2014-12-31 2014-12-31 Power system for electric car, and driving, braking and electric energy supplement method for power system Pending CN105811695A (en)

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US20090263260A1 (en) * 2005-10-24 2009-10-22 Naomi Goto Inverter device
CN101564986A (en) * 2009-05-06 2009-10-28 华南理工大学 Integrated electric wheel drive unit for electric automobile
CN103097168A (en) * 2010-03-10 2013-05-08 Ntn株式会社 Motor driving system for electric vehicle
CN103770778A (en) * 2014-01-21 2014-05-07 浙江众泰新能源汽车科技有限公司 Control method of range-extended type electric vehicle by considering minimum use cost

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090263260A1 (en) * 2005-10-24 2009-10-22 Naomi Goto Inverter device
CN201134723Y (en) * 2006-12-18 2008-10-15 綦学尧 External rotor toothless mesh planet speed reducing electric hub
CN101564986A (en) * 2009-05-06 2009-10-28 华南理工大学 Integrated electric wheel drive unit for electric automobile
CN103097168A (en) * 2010-03-10 2013-05-08 Ntn株式会社 Motor driving system for electric vehicle
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