Experimental Verification of a Motor with Two Axially-Arranged Rotors

Electric vehicles are equipped with a number of electric motors and their inverters. In order to reduce the space of the motors, we have proposed a motor with two concentrically-arranged rotors which can be independently controlled, and a common outer stator. However, the previous motor was difficult to be practically used due to its complicated support structure. Therefore, we proposed an improved motor with two axially-arranged rotors. In this paper, the static and dynamic characteristics of the motor are computed and verified by carrying out measurements on a prototype. Both results were in good agreement, and the effectiveness of the proposed motor was shown.