ELECTRIC BICYCLE

摘要

An electric bicycle employing chain, V-belt or friction pulley drives and a motor controller circuit variable in both frequency and duty cycle. Regenerative braking and the conversion of the motor to a transformer for charging the bicycle battery is disclosed as is both tires and a rim adapter to convert a standard bicycle rim to a belt drive. The pressure of the armature brushes of the motor is variable under light load conditions to increase motor efficiency.