Analysis of flux leakage in novel permanent magnet type eddy current retarder for vehicle applications

Author

Xiaobo, Zhao ; Changying, Ji

Author_Institution

Coll. of Eng., NanJing Agric. Univ., Nanjing

fYear

2008

fDate

3-5 Sept. 2008

Firstpage

1

Lastpage

4

Abstract

As vehicle speed increases, a more powerful brake system is required to ensure vehicle safety and its reliability. Much attention is presently focused upon the permanent magnet type eddy current retarder. In order to reduction of flux leakage for performance improvement of permanent magnet type eddy current retarder during the brake off. Firstly, flux leakage coefficient is obtained for the conventional permanent magnet type eddy current retarder. Then, a novel permanent magnet type eddy current retarder is introduced. Finally, its flux leakage is analyzed by experiments, including the influence of different air gap, the height and the surface area of permanent magnet respectively on magnetic field, which could help optimum design of retarder in future applications.

Keywords

brakes; eddy current braking; electric vehicles; magnetic leakage; permanent magnet machines; reliability; road safety; air gap; brake system; flux leakage coefficient; magnetic field; permanent-magnet type eddy current retarder; surface area; vehicle reliability; vehicle safety; Eddy currents; Magnetic analysis; Magnetic circuits; Magnetic flux leakage; Magnetic forces; Permanent magnets; Propulsion; Rotors; Stators; Vehicles; Flux leakage; Influencing factors; Novel permanent magnet type eddy current retarder;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE

Conference_Location

Harbin

Print_ISBN

978-1-4244-1848-0

Electronic_ISBN

978-1-4244-1849-7

Type

conf

DOI

10.1109/VPPC.2008.4677735

Filename

4677735