A1 Journal article (refereed), original research

Moving magnet linear actuator with selfholding functionality

Publication Details
Authors: Immonen Paula, Ruuskanen Vesa, Pyrhönen Juha
Publisher: Institution of Engineering and Technology (IET)
Publication year: 2018
Language: English
Related Journal or Series Information: IET Electrical Systems in Transportation
Volume number: 8
Issue number: 3
Start page: 182
End page: 187
Number of pages: 6
ISSN: 2042-9738
eISSN: 2042-9746
JUFO-Level of this publication: 1
Open Access: Not an Open Access publication


Electromagnetic design of a moving magnet frictionless linear actuator
with self-holding functionality for mechanical gear shifting in a
transmission application is presented. The actuator consists of a
tubular magnetic circuit with stationary armature and axially moving
rotating permanent magnet assembly with radial magnetisation in the air
gap. The armature contains a two-piece magnetic core with a space for a
winding. The effects of armature slot opening and magnetic circuit
materials on the self-holding force and the acting force are studied in
the whole moving range. The designed moving magnet linear actuator
improves the performance of the vehicle by enabling shift times below 50
ms with no energy consumption between the shifts.

LUT Focus Areas

Last updated on 2020-20-03 at 10:03