I just wonder why the electric motor, like Brushless Dc motor or switched reluctance motor, cannot generate adequate electricity to charge the battery or other energy storages at the low speed? Someone told me that the charge efficiency of a motor is a function of motor speed and especially an electronic switch or circuit is used for controlling the output current. But I'm still totally off the board. Because I think since the rotor (armature) is still running, there must be output current to the energy storage, thus the motor can also charge the battery at low speed.
Oh! Please! Could somebody just explain what happened as the motor is at low speed?
2007-02-20
00:27:59
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5 answers
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asked by
burningcalories
2
in
Engineering