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Electric vehicle motor refers to the driving motor used for electric vehicles. The forms are also different according to the use environment and frequency. Different types of motors have different characteristics. Permanent magnet DC motors are widely used in electric vehicles. Brushless DC motor is characterized by brushless, high reliability, no commutation spark, low mechanical noise and other advantages.

Generally speaking, because brushless DC motor has no friction loss of mechanical commutation, gearbox consumption and speed regulating circuit loss, the efficiency can generally be higher than 85%. However, considering the highest cost performance in actual design, in order to reduce material consumption, it is generally designed to be 76%. The efficiency of the brush DC motor is usually about 70% due to the consumption of the gearbox and overrunning clutch.