High performance traction motor design and construction for small passenger electric car

This paper introduces an enhanced permanent magnet motor, that has been optimized for small passenger cars propulsion. The proposed motor configuration utilizes efficiently the energy stored in the permanent magnets and provides optimal power density under specific size constrains and traditional material technology. Finite element modeling enables to determine the detailed motor configuration, through parametric optimization. Furthermore, the motor characteristics, deriving from the FEM analysis, are incorporated to an advanced dynamic model, suitable for control purposes. The methodology adopted has been validated by comparing the simulation results to measurements obtained on an appropriate test bench.