Electric vehicle motor characteristics: Made by rare-earth permanent magnent as main material with new technique advantaged and typical mechatronic productcan mainly use on Elcectric car and botat.reactive power loss, small size, light weight, long-term operation is not heat, particularly suitable for electric vehicles to reduce weight and save battery power, continued to extend the work of driving mileage requirements. compared with asynchronous motor, improve efficiency by 5%-12%