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Energies 2014, 7(3), 1539-1554; doi:10.3390/en7031539
Article

Electromagnetic Design of a New Electrically Controlled Magnetic Variable-Speed Gearing Machine

*  and
Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
* Author to whom correspondence should be addressed.
Received: 13 December 2013 / Revised: 18 February 2014 / Accepted: 27 February 2014 / Published: 13 March 2014
(This article belongs to the Special Issue Advances in Hybrid Vehicles)
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Abstract

This paper proposes a new electrically controlled magnetic variable-speed gearing (EC-MVSG) machine, which is capable of providing controllable gear ratios for hybrid electric vehicle (HEV) applications. The key design feature involves the adoption of a magnetic gearing structure and acceptance of the memory machine flux-mnemonic concept. Hence, the proposed machine can not only offer a gear-shifting mechanism for torque and speed transmission, but also provide variable gear ratios for torque and speed variation. The electromagnetic design is studied and discussed. The finite-element method is developed with the hysteresis model to verify the validity of the machine design.
Keywords: magnetic gear; memory machine; permanent-magnet (PM) machine; hysteresis model; finite element method; electrically controlled gear ratio; hybrid electric vehicle (HEV) magnetic gear; memory machine; permanent-magnet (PM) machine; hysteresis model; finite element method; electrically controlled gear ratio; hybrid electric vehicle (HEV)
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Liu, C.; Chau, K.T. Electromagnetic Design of a New Electrically Controlled Magnetic Variable-Speed Gearing Machine. Energies 2014, 7, 1539-1554.

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