1. Judgment of the phase angle of the brushless motor. The phase angle of the brushless motor is the abbreviation of the phase algebraic angle of the brushless motor, which refers to the angle at which the current direction of each coil of the brushless motor changes in one energization cycle. The common phase algebraic angles of brushless motors for electric vehicles are 120° and 60°.
2. Wiring method of brushed motor. Brushed motors generally have positive and negative leads. Generally speaking, the red wire is the positive electrode of the motor, and the black wire is the negative electrode of the motor. If the positive and negative poles are exchanged, it will only make the motor reverse, and generally will not damage the motor.
