Electric tricycle points by installation location: a motor and the wheel hub of two. According to the current points have a dc motor and ac asynchronous motor (Differential motor)； Electric tricycle with dc motor, dc motor and brushless dc motor; Dc motor rotor coil within the communication circuit, a motor is through the brush commutation; Brushless motor is through the dc to ac inverter circuit, and then to the coil. Most don't need ac motor commutator segment (Brush)And you don't normally need permanent magnets. But there are exceptions, such as the series motor, series motor, tend to have two pieces of carbon brush. According to the rotor and stator have one without the magnet, permanent magnet motor with series; The permanent magnet motor, brushless motor with a brush.
