Cost-effective electric traction drive with high efficiency at low-load operation

Author

Gerling, Dieter ; Dajaku, Gurakuq ; Mühlbauer, Klaus

Author_Institution

Univ. of Fed. Defense Munich, Neubiberg, Germany

fYear

2010

Firstpage

1

Lastpage

6

Abstract

This paper presents the impact of a new electric motor design on the entire electric power train. As an example, the characteristics of a typical future battery electric vehicle are taken. The main intention of the new motor design is to considerably enhance the efficiency of the electric motor at low-load operation points, as these are the most relevant ones during typical driving cycles of a vehicle. It is shown that the efficiency at low-load can be improved by up to 10 percent points and even more. In addition, lower current level and lower torque ripple are gained. Using this new motor design for an electric power train of a prospective battery electric vehicle, the advantages are proved by driving cycle simulations. The economic and ecologic impact of this new electric drive is described in detail.

Keywords

battery powered vehicles; torque; traction motor drives; battery electric vehicle; cost effective electric traction drive; driving cycles; ecologic impact; economic impact; electric motor design; electric power train; low load operation point; torque ripple; Permanent magnet motors; Rotors; Stator windings; Torque; Traction motors; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Emobility - Electrical Power Train, 2010

Conference_Location

Leipzig

Print_ISBN

978-1-4244-8410-2

Type

conf

DOI

10.1109/EMOBILITY.2010.5668075

Filename

5668075