Advantages:

a) electronically commutated has always replace the traditional mechanical commutation, reliable, never wear, low failure rate, about 6 times life than brush motors, on behalf of the direction of the development of electric vehicles;

b) is a static motor no-load current;

c) high efficiency;

d) small size.

Disadvantages:

a) low speed when starting a slight vibration, such as speed increase the commutation frequency increases, you feel the vibration phenomenon;

b) the price is high, the controller requires high;

c) easy to form a resonance, because any one thing has a natural vibration frequency, the vibration frequency of the vibration frequency of the brushless motor and the frame or plastic member identical or close to it is easy to form a resonance phenomenon, but can be adjusted to the resonantThe phenomena is reduced to the minimum extent. Brushless motor drive electric cars sometimes emits a buzzing sound is a normal phenomenon.

d) foot riding more laborious, the best combination of electric drive with pedal assistant.