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Energies 2014, 7(3), 1483-1499; doi:10.3390/en7031483

A Magnetless Axial-Flux Machine for Range-Extended Electric Vehicles

Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
Author to whom correspondence should be addressed.
Received: 10 January 2014 / Revised: 11 February 2014 / Accepted: 27 February 2014 / Published: 11 March 2014
(This article belongs to the Special Issue Advances in Hybrid Vehicles)


A new magnetless axial-flux doubly-salient DC-field (AF-DSDC) machine is proposed and implemented into the application of a range-extended electric vehicle (RE-EV). By employing the radial active part for the torque production, the proposed machine can produce satisfactory torque density to fulfill the requirements of the RE-EV system. With the support of the 3D finite element method (3D-FEM), the performances of the proposed machine are calculated and compared with the requirements of the typical passenger RE-EV applications. To offer a more comprehensive illustration, the common radial-flux (RF) machines are included for comparison. View Full-Text
Keywords: range-extended electric vehicle (RE-EV); magnetless; axial-flux (AF) machine; 3D finite element method (3D-FEM) range-extended electric vehicle (RE-EV); magnetless; axial-flux (AF) machine; 3D finite element method (3D-FEM)

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lee, C.H.T.; Liu, C.; Chau, K.T. A Magnetless Axial-Flux Machine for Range-Extended Electric Vehicles. Energies 2014, 7, 1483-1499.

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