Primo, significatione Brushless DC motricium
sunt crescente de in environment et industria, ut promovere progressionem electrica vehicles et accelerato in competition mundi magnis potentiae in agro electrica vehiculis. Sub current altilium technology restringitur, quam ad amplio industria efficientiam, amplio electrica car trinus, est focus in electrica currus industria. Big Satus Tortum Brushless DC motricium, celeritate imperium perficientur est bonum, princeps efficientiam, industria densitas, fortis ONERO capacity, firmum perficientur, tutum et reliable est idealis electrica vehiculum coegi motricium, est idealis electricum vehiculum coegi motricium, est idealis electrica vehiculum coegi motricium, est idealis electrica vehiculum coegi motor. In industriarum productio de Brushless DC motricium, ut amplio perficientur electrica vehiculum et accelerans progressionem electrica currus industria, electrica currus industria in patria adsequi cum mundo provectus gradu habet positivum munus in promovendo.
2, advanced
brushless dc motor for electric vehicle is mainly used in urban traffic, vehicle in most of the time the working state of the start, acceleration, braking, therefore starting performance of motor, acceleration, the efficiency of low speed and braking energy regeneration, motor overload capacity, the energy density, the reliability of machine is particularly important for electric vehicles, is one of the important indicators to measure electric vehicle motor. There is currently no optional dedicated motor, electric vehicles can only choose general motor, such as dc series motor, dc shunt motor, permanent magnet dc motor, asynchronous motor, etc. General motor load characteristic of constant load, the electric vehicle features for variable load characteristics, the two features do not match, affect the motor output, then influence the performance of electric vehicles. Praeterea, maximum efficientiam punctum omnium consilio in generali motore rated punctum prope, cum onus deviationis punctum, motricium efficientiam cecidit acriter, affectus est peregrinatione procul vehiculum. Switched invitus motor ad humilis celeritate magna torque, sed efficientiam humilis permanens magnes synchronum motricium habet princeps efficientiam, sed humilis celeritate torque non ascendat. Tantum Brushless DC motricium habet omnes commoda super motricium, quod habet seriem Motor Torque at Minimum Release Upgrade, SHROCENTUM DC Motor Celeritas Imperium SynchRonensis motricium et propinquus ad Reliability of Synchronous motricium et proxima ad Reliability de Asynchronois motricium et proxima ad Reliability vehiculis, valde idoneam ad necessitatem electrica vehiculis. Technical Indicatores in variis motor summary in mensa I. Omnes genera motricium
Technical Indicatores Summary Tabula I
Sex Machina Motor Permanent Magnet Motor Motor Motor Permanent Magnet Motor Motor Permanens SynchRonensis Motor Permanent V
IV II, III, V IV IV, V
humilis Celerens IV IV: 3, 4, 5
lower efficiency of 3, 3, 4, 3, 4, 5 5 average efficiency
3, 3, 4, 4 and 5 5 energy density 2, 3, 4, 2, 4, 5
overload capacity 4 4 4 5 4 3 5 5
regeneration 3 5
5 4 3 2 2 2 2 5 5 4 4 reliability
the manufacturing cost of 4, 4, 5 4 5 4 4
controller costs 5 5 4 4 4 4
and 36 36 and 37 meter 37 45 to 47
from the table above brushless dc motor is the most ideal electric vehicle drive motor, compared with other motor, its main advantages as follows: (1) motor external characteristic is good, very accord with the load characteristics of electric vehicles especially motor has low speed high torque characteristics of the precious, can provide large starting torque, satisfy the requirement of the vehicle acceleration. (2) the wide speed range, the motor can run at full power in any speed, this is the unique features of brushless dc motor, so that we can save the car mechanical transmission, change the internal combustion vehicle transmission mode, further improve the efficiency of the vehicle. (III) motricium cum altum efficientiam, praesertim sub lumine onus cars, motor potest adhuc ut altum efficientiam, est valde magna pretiosum Motor efficientiam plus quam X% plus quam ut ex Motricium Motor X%, altior quam XX%. (IV) Omindo facultatem est fortis, hoc genus motricium quam y series motor overload capacity potest esse melior magis quam XX%, potest occursum necessitates in vehiculum bumps clausus. (V) Regeneratia Braking effectus est bonum, propter permanens magneticam motricium rotor habet ipsum altum, cum currus downhill vel fregit motricium generans potest esse omnino in statum, ad recharge in altilium. VI. Motor parva volumine, lux pondus, princeps potentia potest efficaciter reducere pondus, nisi spatium. VII Non mechanica commutator motricium, utitur prorsus inclusum structuram, ne pulvis ab intrantes motor internum, princeps reliability. Simple quam asynchronous motricium erat motor imperium ratio.
brushless dc motor is developed on the basis of the permanent magnet synchronous motor, permanent magnet synchronous motor is higher than that in its efficiency and larger torque at low speed, two kinds of external characteristic of the motor as shown in figure 1.
3, the present situation of the brushless dc motor
the motor can be divided into dc motor, synchronous motor and induction motor, the division of three kinds of motor production in Sinis est relative patet, Brushless DC motricium est collectio trium genera motricium, motricium est progressionem summus gradu products, repraesentant progressionem directionem ex machina. Et Brushless DC motor Research est iustus coepi, maxime in institutions superioris doctrina, ut Zhejiang University, Beijing University of Aeronautics et Astronautics, Shanghai Jiaotong University of Studies, Tsinghua in I CY CY EXPLICYTA, Seres Academy of Sciences est XXVIII Motor Kw C. EXPLICIUM CY CY CY CY CY CY CY CY CY CY CY CY CY CY CY CY EXPLICIUM EXPECTATIMUM EXPLICIUM EXPLICITIA EXPLICIUM XV CY EXPLICIUM CYS experimentum. In Enterprise productio ex altum perficientur, magna facultatem huius generis motricium manufacturers et non solum productio simplici structuram, humilis perficientur, facultatem ad 0. Sub Motor II, propter electrica bicycle motricium manufacturers. DC ad developed in progressionem in gentium DC motricium et idem in Sina, sed sicut Civitatum Foederatarum, Iaponia provectus quam Sina in terms of Brushless DC motricium imperium.
