Comparison of Two In-Wheel Permanent Magnet Motors for Military Applications

In this paper, the authors present and compare two structures of PM high torque in-wheel motors. The first one is a classical surface mounted permanent magnet motor and the second one is a new structure of transverse Vernier hybrid reluctance motor. Those two structures have been designed and realized in order to be tested within the ECCE platform which is a 10-ton 4WD armored car dedicated to the test of different electrical components for military electrical vehicles. The authors present the results of the two machines design and various experimental results. The conclusion of the paper is that the classical surface mounted permanent magnet motor is more adapted to this particular application. Indeed, the second structure is interesting to the economical point of view, because the PM weight could be lower. But, unfortunately this structure is unable to provide the needed maximal torque because of the flux leakages due to the saturation of magnetic material