CN105799523A - Power system of electric vehicle and driving method, braking method and electric energy supplementing method of power system - Google Patents

Power system of electric vehicle and driving method, braking method and electric energy supplementing method of power system Download PDF

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Publication number
CN105799523A
CN105799523A CN201410855446.2A CN201410855446A CN105799523A CN 105799523 A CN105799523 A CN 105799523A CN 201410855446 A CN201410855446 A CN 201410855446A CN 105799523 A CN105799523 A CN 105799523A
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China
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electric
power supply
stator unit
unit
supply modulator
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刘粤荣
姚飞
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Shenzhen Beauty Energy Co Ltd
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Individual
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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
    • Y02T10/70Energy 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 of an electric vehicle. The power device comprises an electric device, a battery pack and a stroke increasing system; the electric device comprises a power source modulator, a speed reducing/ moment changing device, a driving and controlling device, a fixed body and a rotating body; the rotating body is an annular mechanical ring with a rotating shaft, and multiple rotor units made of magnetically-conductive dielectric materials are arranged on the rotating body at intervals; the fixed body is a mechanical disc with a fixed shaft, and the fixed body is internally provided with one or more stator units and mounted to the position close to the rotating body; the fixed body and the rotating body are coaxially arranged, and a relative air gap between the fixed body and the rotating body is not greater than 30 mm; the speed reducing/ moment changing device is coaxial with the rotating body and arranged outside the rotating body; the power source modulator obtains a command of a user through the driving and controlling device and an electromagnetic braking device and outputs a time sequence current correspondingly, and driving and braking of the electrical device are achieved; the stroke increasing system of the power system supplements electric energy for the battery pack.

Description

A kind of electric motor car dynamical system 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 the driving of electric device, braking method and supporting electric motor car thereof that a kind of sequential electric current drives.
Background technology
Current domestic electric bicycle market is usually 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.
Industry specialists generally believes, owing to the structure of current wheel hub motor is except hub body, 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%;Therefore, if motor can not be multiple subtracts pound, 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.
In recent years the permanent-magnet brushless DC electric machine of fast development is obtained, mainly it is 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 the power supply mode of existing electronic DC motor for vehicles, a kind of internal structure and power supply control is provided to be different from the electric device of conventional motors design, a kind of range-extending technique scheme based on pure electric vehicle is provided simultaneously, simple in construction, electric device torque is big, and technique easily realizes.
The dynamical system of a kind of 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 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;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 30mm;Described deceleration/torque changing apparatus is coaxially disposed with turning;Described set of cells 8 is the repeatable secondary cell used that repeatedly charges;
The inside winding of the sequential current output terminal electrical connection stator unit of described power supply modulator, driving signal input electrical connection drives actuation means;Described power supply modulator 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.
Preferably, the rated power of described power supply modulator is less than 15kW.
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 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;
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.
Preferably, the electric device of described dynamical system 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.
In the present invention, the described electric motor car containing any of the above-described dynamical system 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 electric device, and the wheel installing 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 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 turning direction of rotation, 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 T, and each make and break period T includes power supply time domain and power-off time domain;Described power supply time domain is positioned at the 20 degree≤θ≤90 degree corresponding time period, and ∠ θ is the dynamic angle that rotor unit is formed around the direction of electromagnetic field captivation suffered by axle Yu its normal component of force;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 is that periodically trapping gap is relative, be in the state (θ is 0) of same normal as benchmark coordinate and fiducial time using stator unit and rotor unit, 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 is 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 according to described rotor unit convergence stator unit, rotor unit relative with the same normal in stator unit place (∠ θ is 0) and rotor unit and stator unit;
Described sequential defines according to rotation of wheel direction;Described rotor unit convergence stator unit is the 0≤θ≤35 degree corresponding time periods, and ∠ θ is the dynamic angle that rotor unit is formed around the direction of electromagnetic field captivation suffered by axle Yu its normal component of force on turning.
Preferably, described method also includes 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 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 1 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 application characteristic of electric device, electrical source of power is implanted the Technology of NC Programming optimized, specify that power supply timing logical constitution, this design can bring two obvious technology incomes: one is the time domain energising that power supply modulator is limited at setting, in the time domain dormancy not needing work, save electric energy;Two be electric device energising in regularity interrupt, make energising accumulated heat reduce.Described electric device 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 and devise and be intended to the increasing journey system that electric energy supplements, effectively 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 obvious 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, cost is low, effectively 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.
A kind of base structure schematic diagram of Fig. 2 a dynamical system of the present invention.
Fig. 2 b is a kind of base structure schematic diagram of electric device body of the present invention.
Fig. 2 c is the another kind of base structure schematic diagram of dynamical system of the present invention.
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.
The base structure of Fig. 4 a electric device and 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 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 a kind of partial structurtes schematic diagram of two stator unit 8 rotor units of combination.
Fig. 9 is a kind of partial structurtes schematic diagram of 12 stator unit 12 rotor units of combination.
Figure 10 a is vehicle frame and the local structural representation that the present invention is applied to two wheeler.
Figure 10 b is vehicle frame and the local structural representation that the present invention is applied to carriage.
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, secondary battery;9a, driving actuation means;9b, electro-magnetic braking device;10, coaxial normal;11, wheel 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;The angle of θ, electromagnetic force and its normal component of force.
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 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, F and F10Direction define dynamic angle theta.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.
In the electromagnetic action interval suffered by above-mentioned rotor unit convergence stator unit, there is F and F11The state particular point overlapped, this particular point shows as F and overlaps around axle tangential direction with rotor unit, interval with effective stress of electromagnetic force state description rotor unit, be positioned at rotor unit be in stator unit coaxial normal 10 (θ is 0 state) be benchmark, ∠ θ be ± 90 degree interval, position (direction of rotation that described ± basis is turned and relative define).When ∠ θ is 90, F11For maximum;The F when ∠ θ is 011It is 0, F10For maximum, to rotor unit around axle without contribution, as shown in Figure 4 b.During rotor unit convergence stator unit, F11And F10Being shifting a pair kinematic variables, its theoretical strong and weak conversion, shows as with around axle driving force F in the state interval of θ > 45 degree with θ for 45 degree for separation11It is main, shows as with normal direction brake force F in the state interval of θ < 45 degree10It is main.The electric device actuation techniques scheme of dynamical system of the present invention is to use F11It is main state interval energising, power-off between all the other state areas, utilize the rotary inertia turned to continue to run with;Additionally, F also can be used10The state being main is interval and rotor unit deviates from the state interval energising of stator unit and makes acquisition braking of turning;Turn the real-time transmission by deceleration/torque changing apparatus, corresponding driving/braking state is transferred to the outside of electric device.
The driving preferred version of electric device of the present invention is: the time domain energising of corresponding 20 degree≤θ≤90 degree of power supply modulator, all the other time domain power-off;In this energising time domain, the time domain of even 75 degree≤θ≤90 degree 60 degree≤θ≤90 degree should be selected to be energized based on the design of economize on electricity;Need to make full use of the design of rotary inertia of turning, may select the energising of the time domain of even 20 degree≤θ≤< 90 degree 30 degree≤θ≤90 degree;Due to ∠ θ in 45 degree of states of < with considerable F10, continue energising in 20 degree of states of θ < and lost optimization design sense;The current switching time domain that this preferably drives 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.When needs use electromagnetic force braking electric device, the preferred version for electric braking is: power supply modulator correspondence T2And T0Part time domain or all time domain be set to energising, described T2Preferred rotor unit is around the time domain of corresponding 0 degree≤< θ≤35 degree of axle convergence stator unit, described T0For rotor unit around the axle corresponding time domain away from stator unit;In like manner, it is preferable that time domain energising braking in θ≤35 degree is owing to θ exists considerable tangential electromagnetic force F when 35 to 45 spend state11, Brake Design is unhelpful.
The control according to ∠ θ state correspondence switching electricity of the above-mentioned power supply modulator, specific design can transform to relative time control, because θ is 0 state and θ is that 90 degree of states are aobvious state, power supply modulator is easily sentenced by timing alignment and is known that θ is from 90 degree to 0 degree, i.e. (T1+T2) time period, as long as set T1With T2Relative time, be namely equivalent to the switching electric control to ∠ θ corresponding state;Such as control the time domain energising of corresponding 90 degree to 45 degree of θ, 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, when the time domain energising controlling corresponding 30 degree to 0 degree of θ, can briefly be set as: at (T1+T2) time period initial 2/3 time domain power-off, 1/3 time domain energising afterwards;Because of (T1+T2) time period be an amount relevant to rotating speed of turning, the real-time status to judge θ cycle time there will be deviation in electric device speed change state, owing to power supply modulator is provided with the time calibration that corresponding θ is 0 degree of state, must give and correcting in time in next cycle.
∠ θ is the hidden variable of a respective rotor unit and stator unit relative motion, after inner stator unit setting of turning (including combination to arrange) scheme is determined, the aobvious state position that corresponding θ is 90 degree is determined simultaneously, its 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, there is multiple theoretical model, its numerical relation is determined according to specific design scheme, and through test inhabitant area;When being commonly designed, it is the aobvious state position using θ to be 90 degree, judges the internal relative position of electric device as sensing device and power supply modulator is sent the one foundation of work order.Described power supply modulator exports the work-based logic of driving or stalling current accordingly, both can be controlled circuit by ordinary tap and realize, it is possible to adopts CPU programming in conjunction with power model group circuit realiration, or adopts the special chip that large scale integrated circuit technology manufactures to realize.
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 a kind of sequential logic schematic diagram driving energising of this simple analysis example.
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 1 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 the partial structurtes schematic diagram of stator unit 8 rotor units of combination, 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, Fig. 7 b denotes the T that a kind of T of setting is corresponding with direction of rotation of turning as π/81、T2And T0Schematic frequency domain, Fig. 7 c is the energising logical schematic of one of them cycle T.
As shown in Figure 8, turning of electric device is internally provided with two stator unit 3a, is provided with 8 rotor unit 3b on turning, 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 1 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 1 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 is around axle 7 cycle movement, 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 1 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), because T1The amplitude of energising time domain is more big, and 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 it is more fast that its result reflects electric device rotating speed.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 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 speed is by driving the input 1d of actuation means 9a electric connection of power supply manipulator to realize.
Technology is required higher electric motor car, T can be used2The electromagnetic force braking function of electric device is set up in time domain energising, and the brake signal input 1e that power supply modulator is set up accordingly electrically connects with electro-magnetic braking device 9b, as shown in Figure 5 c;From the design concept of safety first, it is not necessary to the power saving for braking energising too much considers;Electro-magnetic braking device 9b 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 electromagnetic 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 of described driving actuation means 9a 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.
Existing market main flow 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 specific energy of the aluminium-air cell 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 electric two-wheel vehicle, including electric device 13 set of cells 8 and increasing journey system 16;Electric device is arranged at trailing wheel, and its supporting vehicle frame 4 and machinery partial structurtes are as shown in Figure 10 a;The set of cells 8 of this electric motor car selects the ferric phosphate lithium cell of nominal 24V10Ah, is arranged on inside the whippletree 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 of dead axle in addition, 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;Turning of electric device 6 is one and has and rotate the annular titanium-aluminium alloy circle that axle, girth are 100mm, can be sleeved on disk determine the outside of body with determining body concentric;One stator unit 3a of installation on body is determined 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, and as shown in Figure 2 b, the speed reducing ratio of deceleration/torque changing apparatus is 10:1;The outside of deceleration/torque changing apparatus is provided with some mechanical holes, and one end perforation of some spokes is fixing, and the wheel rim of the connected wheel of the other end makes electric device realize and wheel drive.
Alloy ring turn outer rim rotor unit 3b material select market be prone to buying ferromagnet, be processed into box-like junior unit, 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 45 circle by the copper cash of a diameter 0.50mm, Installation features: body region determined by the disk that stator unit is arranged close to rotating inner edge 6mm, 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 35 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 12A, and this current value is in conjunction with electric device design and through test inhabitant area 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 two-wheel vehicle, turning/stop, tail and number plate light, sound ring, all adopts commercial products supporting.
The work-based logic that power supply modulator sets as: with stator unit 3a and rotor unit 3b, periodically trapping gap 3d is relative, the state that is in same normal 10 (θ is as 0) is designated as benchmark coordinate and fiducial time, drive signal and sensing unit 3c perception rotor unit around the moment (initial time that respective rotor unit entrance spill is relative within the scope of core two ends that axle to θ is 90 degree of positions when manpower assistant or driving actuation means 9a provide, this fine values is through test inhabitant area), power supply modulator starts output 8A electric current;When rotor unit is every time around axle to reference seat timestamp, 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 to power supply modulator without input instruction, power supply modulator dormancy;If driving the instruction that provides of actuation means is accelerate, then power supply modulator is the time period of 90 degree of positions at rotor unit around next cycle of axle correspondence θ, performs 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 power supply modulator maintains the output electric current state close to 12A, above-mentioned setting logic 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 is energized frequency higher than set 1/18ms (correspondence turn 56 turns/s of rotating speed) or when the power supply modulator output continuous 5s of electric current maintains 12A, the unconditional power-off of power supply modulator 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 8 drops to 23V, automatically starting methanol generator system is set of cells 8 electric energy supplement, its charging working method is that constant voltage 29.4V limits maximum current 3A, is automatically stopped charging when charging current is less than 0.5A.
Electric device described in the present embodiment, can be arranged at front and rear wheel simultaneously, also can be arranged on the front-wheel of single block, two wheeler or tricycle accordingly;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 this two wheeler, depends primarily on the capacity of methanol that fuel tank carries rather than set of cells 8.
Embodiment 2,
The 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 1 adopts pulse digit technology to realize, 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 two wheeler 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.Stator former unit winding starts the moment of energising, it is possible to change into (T1+T2) time period is reference value time delay 1% to 5%.
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, braking energising time domain be set in sensing unit 3c perception rotor unit 3b around axle to θ be 30 degree to the time period that θ is 0 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 has additional the soft braking function of electromagnetic force due to electric device, 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 T0The numerical value of part time domain and (T1+T2) equal, T0Energising Startup time is with ∠ θ for 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 corresponding cycle sequential T and be briefly set as: at (T1+T2+T0) in sequential, initial 1/3 time domain power-off, afterwards 2/3 time domain energising.
Aforementioned braking time domain θ is the time period that can also change to time period of 30~0 degree of positions 15~0 degree of positions.
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 7mm;Deceleration/torque changing apparatus 2 and coaxial integrated design and installation of turning, speed reducing ratio is 9:1.
Electric device continues selection and joins the design of car 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, electromagnetic force is there is with 8 rotor unit 3b respectively in the stator unit 3a because being arranged on outside of turning in a swing circle of turning, power supply modulator sets the timing cycles of corresponding speed limit as 3.75ms, and electric device drives the (T of power supply1+T2+T0) cycle timing settings (T1: T2: T0) it is (0.75:1.2:1.875);Power supply modulator selects large scale digital logic switch integrated circuit to realize, maximum overload capacity 800W.
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 and reach the design object of automatic speed-limiting.
Set of cells in the present embodiment selects nominal 55.5V40Ah plumbic acid colloid battery, increases journey system and arranges similar with embodiment 1;The present embodiment dynamical system is than previous example, 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 6 internal plane normal of turning, determine body annular position near rotating inner edge 6mm, 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;The driving of power supply modulator power time domain be defined as θ from 90 degree to 70 degree the corresponding time period, braking power supply time domain be defined as the θ time period from 15 degree to 0.Two stator unit 3a can also be changed into by the present embodiment to be installed at both sides space symmetr of turning, and winding is electrically connected in series, and electromagnetic pole direction is identical.
Embodiment 7,
Being arranged on the dynamical system of electric four-wheel vehicle as shown in fig. lob, 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 is connected;Determine body 5 inside and 12 stator unit 3a are set, stator unit is cylindrical around core, and umber of turn is adjusted to 55 circles, and during installation, cylinder overlaps with corresponding normal 10 of turning around core two ends line 12, as shown in Figure 3 b, 12 stator units are uniformly distributed at the annular position near rotating inner edge 8mm;Titanium-aluminium alloy turn 6 with integrated forming technique in inside the rotor unit 3b of chimeric 12 alternate settings.
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 star-star-delta connection Y-Y 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 present embodiment electric device, brake control mode and stator former unit are arranged at inside of turning is similar, drive power supply time domain be defined as θ from 90 degree to 60 degree the corresponding time period, braking power supply time domain is defined as θ from 30 degree to-90 degree (θ is-is worth to define away from the state of stator unit according to rotor unit) accordingly time periods.Drive power supply time domain T1Also 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 T2Also 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 trailing wheels in the present embodiment, make turning driving more stable when turning driving.
Embodiment 8,
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, and namely the wheel of two coaxial compact installations shares a set of electric device;Electric device is internal and control mode, set of cells 8, increases journey system 16 and designs with reference to previous example according to the performance requirement of car;Actuation means 9a is driven to be set to remote control.
The quasi-single-wheel structure of coaxial compact installation two wheel described in the present embodiment can at the front-wheel of front and back electric motor car with two wheels, trailing wheel, even former and later two take turns in addition deformation implementation further, make electric motor car travel effect more stable.
Embodiment 9,
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 fig. lob;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, described determine 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 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. an electric motor car dynamical system, 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 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);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 not more than 30mm by relative air gap (3d);Described deceleration/torque changing apparatus is coaxially disposed with turning;Described set of cells (8) is the repeatable secondary cell used that repeatedly charges;
The inside winding of the sequential current output terminal electrical connection stator unit of described power supply modulator, driving signal input electrical connection drives actuation means;Described power supply modulator is by driving actuation means to obtain the instruction of user, and in the corresponding time sequence inside winding output current to stator unit, makes electric device realize driving/braking.
2. dynamical system according to claim 1, it is characterized in that, deceleration/the torque changing apparatus (2) of described electric device (13) 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 the arbitrary one-shot battery of material;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 electric device, and the wheel installing electric device 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 (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 T, and each make and break period includes power supply time domain and power-off time domain;Described power supply time domain is positioned at the 20 degree≤θ≤90 degree corresponding time period, and described θ is the dynamic angle that rotor unit is formed around the direction of electromagnetic force suffered by axle Yu its normal component of force;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 is rotor unit is relative with the coaxial normal in stator unit place, θ 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 is the 0≤θ≤35 degree corresponding time periods, and described θ is the dynamic angle that rotor unit is formed around the direction of electromagnetic force suffered by axle Yu its normal component of force.
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).
CN201410855446.2A 2014-12-31 2014-12-31 Power system of electric vehicle and driving method, braking method and electric energy supplementing method of power system Pending CN105799523A (en)

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