When the motor is working, the coil and commutator rotate, and the magnetic steel and carbon brush do not rotate. The alternating change of the coil current direction is completed with the commutator and brush that the motor rotates. In the electric vehicle industry, brush motors are divided into high-speed brush motors and low-speed brush motors. There are many differences between brush motor and brushless motor. From the name, we can see that brush motor has carbon brush, and brushless motor has no carbon brush.