Evaluation of Energy Cost Index for an Electric Vehicle Motor over a particular Drive Cycle with Recycled Magnet Concept
Résumé
Nowadays, in automotive applications, the
electric vehicle motors generally utilize permanent magnet
motors due to their various advantages like high torque density,
high efficiency, compactness and ease of control. In this paper
emphasis is given to the evaluation of energy cost index for an
EV motor over a particular drive cycle during motors
operational lifetime. Performance evaluation over the entire
drive cycle, instead of at rated conditions, provides a better idea
of the efficiency and energy consumption of an electric motor.
Therefore, energy cost evaluation for the urban part of New
European Driving Cycle i.e. ECE-15 is selected in this study and
the energy cost index is evaluated for an EV motor for virgin
and recycled magnets utilized in the machine. The comparison
shows that utilizing recycled magnets can provide economical
advantage over using virgin magnets albeit under certain
assumptions.