Development of High-Efficiency, Fully Recyclable eMotors for Light Mobility Applications Produced in the EU

This article presents a new generation of electric motors developed for light mobility and industrial applications. The motor range is based on synchronous reluctance technology using non-rare-earth permanent magnets. Three continuous power levels have been developed: 2, 4 and 6 kW. The challenges related to that motor range is their high continuous performances (cooled by natural convection) under nominal 48V, and reparability easiness without adding complexity. These motors stand out thanks to their competitive manufacturing cost and peak efficiency above 94%, which is a remarkable performance for this power and torque class. A prototype of a 6 kW continuous power has been produced and benchmarked. The experimental test showed a high level of correlation with the simulation calculation.