Design requirements: extra traction, increased torque Developed specifically for traction and higher low-speed torque loads, and applications for which starting torque requirements are greater than continuous torque requirements, the electric-drive system uses multi-phase motors in which the windings connect several inverter terminals to each other, and are not grounded in the conventional way. The different connectors act like different gear rates, and the motor can electronically change “gears” by operating the inverter at the harmonics of the drive frequency. The system therefore uses harmonic drive to essentially fool the drive electronics into thinking they are operating at a higher speed. The net benefit is that the motor drive is capable of achieving five times the torque speed of a similarly sized unit and is therefore much smaller and lighter. |
伏虎降龍 發(fā)表于 2014-7-2 13:10+ `4 K, Q% R9 W q2 [2 t
50KW的內(nèi)燃機很重嗎?柴油機吧,如果為了輕便??梢圆捎?br /> (1)小型飛機用的活塞發(fā)動機,但是要配置變速箱。 ...
zerowing 發(fā)表于 2014-7-2 13:046 R" K5 X" T" l# p8 t. o' h( E0 {
先搞清楚最低重量需求再考慮是否該減肥和如何減肥。POWERPUSH只有55.1kw的功率。一輛思域就有103kw,但是你 ...
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