Torque Density and Efficiency Improvements of a Switched Reluctance Motor Without Rare-Earth Material for Hybrid Vehicles

By Akira Chiba, Y. Takano, M. Takeno, T. Imakawa, N. Hoshi, M. Takemoto, S. Ogasawara. IEEE transactions on industry applications, 2011

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Development of a Rare-Earth-Free SR Motor With High Torque Density for Hybrid Vehicles (2015, methodology): “In our previous papers [25], [26], we fabricated and tested the SRM1a and SRM1b motors.”
Design of switched reluctance motor competitive to 60 kW IPMSM in third generation hybrid electric vehicle (2011, background): “The efficiency, torque and a power-and-speed-range are reported to be competitive to the IPMSM [25] [26].”
Multiport Converter for Fast Charging of Electrical Vehicle Battery (2011, methodology): “The switch signals were tested using a DSP combined with an FPGA because of the large number of switches.”
Comparison of the Test Result and 3D-FEM Analysis at the Knee Point of a 60 kW SRM for a HEV (2013, methodology): “The price and the supply of rare earth material have been recognized as one of the major problems for HEV mass production.”
Automotive Electric Propulsion Systems With Reduced or No Permanent Magnets: An Overview (2014, background): “The authors worked on improving the duty cycle requirements for an SRM [17], [18].”