1. The brushless motor is actually an AC motor, which is connected to the frequency of a rectangular wave voltage to control the speed, such as a common electric moped.

2. The design structure (number of pole pairs) of the brushless motor is the rated speed of the motor under rated conditions.

3, when it is higher than the rated voltage of the motor, the output power of the motor can be increased, showing the phenomenon of speed increase, but the current of the motor coil increases, the heat generation increases, and the service life of the motor decreases, resulting in the deterioration of electric vehicles. The braking distance is extended and the risk factor is increased