Design and optimization of dual rotor motor for electric vehicle application

Selection of a particular motor type for electric vehicle application is a very challenging task. Dual rotor motor (DRM) drive train due to its high torque density and compact size in comparison to drive trains with multiple motors has emerged as a potential alternative to conventional motor types such as permanent magnet motor and induction motors. Due to the presence of three magnetically coupled motor parts, design and optimization of DRM geometry becomes a complex job. In this paper different configurations of a particular type of DRM have been analyzed using finite element analysis (FEA). The FEA results obtained provides a clear understanding of the interaction of three fields as well as insight to the motor design aspects.