For DC brush motors directly driven by 42V vehicle battery, carbon brush deterioration due to high voltage arc is a major factor to determine motor life [1]. The brush deterioration is significant especially in multipolar motors with lap-wound armature because they allow a large circulating current to flow into their brushes and it decreases commutation performance [2], [3], [4]. In this report, we propose 1) a new brush material capable of preventing brush deterioration even under high-voltage conditions and 2) a new winding method to minimize circulating current under electromagnetic polarization and to suppress high-voltage arc. With each of these new technologies, DC brush motor driven by 42V battery can operate longer than that driven by 14V battery.
Development of Commutation Technology for In-vehicle DC Motor Directly Driven by 42V Vehicle Battery
Sae International Journal of Passenger Cars- Electronic and Electrical Systems
Sae Int. J. Passeng. Cars – Electron. Electr. Syst
SAE World Congress & Exhibition ; 2009
2009-04-20
8 pages
Conference paper
English
Automotive engineering | 2009
|British Library Conference Proceedings | 2009
|The Drive and Control System for Electric Vehicle Driven Directly by Wheel Motor
British Library Conference Proceedings | 1999
|The drive and control system for electric vehicle driven directly by wheel motor
Automotive engineering | 1999
|European Patent Office | 2019
|