A Brushless Permanent Magnet Machine With Integrated Differential

Author

Atallah, K. ; Jiabin Wang

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK

Volume

47

Issue

10

fYear

2011

Firstpage

4246

Lastpage

4249

Abstract

Road vehicles are equipped with at least one differential which enables torque to be transmitted to the driving wheels while still being able to rotate at different speeds. The paper presents a brushless permanent magnet machine with integrated differential, where the torque is transmitted to the wheels/axles through two permanent magnet eddy current couplings. Simulation studies have shown that such differential would exhibit the characteristics of limited-slip mechanical differential and the permanent magnet eddy current couplings can transmit the torque of the traction machine with efficiencies in excess of 99%.

Keywords

brushless machines; eddy currents; permanent magnet machines; power transmission (mechanical); road vehicles; torque; traction; wheels; brushless permanent magnet machine; driving wheels; integrated differential; limited-slip mechanical differential; permanent magnet eddy current coupling; road vehicles; torque; traction machine; Axles; Couplings; Eddy currents; Permanent magnet machines; Permanent magnets; Torque; Wheels; Couplings; eddy currents; permanent magnet machines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2157897

Filename

6027604