Design of a Magnetic-Geared Outer-Rotor Permanent-Magnet Brushless Motor for Electric Vehicles

By K. Chau, Dong Zhang, Jingwei Jiang, Chunhua Liu, Yuejin Zhang. IEEE transactions on magnetics, 2007

401 citations recorded by the source corpus.

This paper proposes a novel in-wheel motor, which artfully integrates a magnetic gear into a permanent-magnet brushless (PMBL) DC motor so that they can share a common PM rotor, hence offering both high efficiency and high power density. Moreover, the low-speed requirement for direct driving and the high-speed requirement for compact motor design can be achieved simultaneously. A 2-kW 600/4400-rpm magnetic-geared outer-rotor PMBL DC motor is designed and analyzed, which is particularly suitable for battery-powered electric motorcycles

Subfields: Control and Systems Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/2b925d08eed82138088177f179fa3a1ebc9a32d0

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In Control and Systems Engineering

In Electrical and Electronic Engineering

Citations in the corpus

Comparison of Coaxial Magnetic Gears With Different Topologies (2009, background): “They are particularly attractive for those applications desiring a high speed reduction ratio, such as electric vehicles [5] and wind generators [6].”
Overview of Permanent-Magnet Brushless Drives for Electric and Hybrid Electric Vehicles (2008, neutral): “design can be achieved simultaneously [45].”
A novel magnetic harmonic gear (2007, methodology): “It has been shown that state-of-the-art magnetic gears can exhibit torque densities of up to 100 kN/m(3)[6], [7], and methods of integrating such gears with permanentmagnet brushless machines in order to achieve a high-torque density “pseudo” direct drive are already being proposed [8], [9].”
A Novel “Pseudo” Direct-Drive Brushless Permanent Magnet Machine (2008, background): “1, or to incorporate the electrical machine within the bore of a magnetic gear [6].”
Comparative Study Between Mechanical and Magnetic Planetary Gears (2011, background): “These actuators are suitable for high-torque low-speed application like electric vehicles [10]–[12].”
Analytical Computation of the Magnetic Field Distribution in a Magnetic Gear (2010, background): “The later actuators are suitable for high torque low speed application like electric vehicles [7] or wind power generation [8].”