1, brushless motor is electric bicycle manufacturer is the brushless toothless motor is generally used. Its speed control system than the cost of a brush, speed control system of high-speed motor, controller in use are prone to failure. Electric bicycle with brushless motor speed must be to more than 35 km/h, can play the best efficiency, but we know that electric bicycle as a non-motor vehicle management, speed must be under 20 km/hour, so the brushless motor is electric bicycle is chosen to reduce the working efficiency, desirability is not strong. Now it is used in the main point is the noise is small. Brushless motor is to use electronic circuit commutation! Have polarity detection element! 2, brush motor brush motor rotor is chosen by most domestic electric bicycle manufacturers, it USES the carbon brush as two contacts of motor power, use the transfer speed and the controller to control, through the secondary gear deceleration and overrunning clutch to achieve electric bicycle 0The infinite speed of 20 km/h. Currently used this brush with high gold content in high speed motor, the motor gear strength is stronger, good abrasion resistance, reasonable design, so the repair rate is low; And change gear and motor maintenance costs less, effectively reduce the electric bicycle repair costs; And a brush motor can easily human riding by overrunning clutch and the flywheel. Is to use brush brush motor mechanical reversing!
