Skid prevention for EVs based on the emulation of torque characteristics of separately-wound DC Motor

Author

Kodama, Shinya ; Li, Lianbing ; Hori, Yoichi

Author_Institution

Dept. of Electr. Eng., Tokyo Univ., Japan

fYear

2004

fDate

25-28 March 2004

Firstpage

75

Lastpage

80

Abstract

It is well-known that the separately-wound DC motor has effective torque (current) reduction characteristics in response to rapid increase of the rotational speed of the motor. This characteristics has been utilized in adhesion control of electric locomotives with DC motor. In this paper, how to realize a new skid prevention method for EVs utilizing this characteristics is mentioned. In order to compensate for Back-EMF, disturbance observer is introduced. By selecting the time constant or observer gain properly, the torque (current) reduction characteristics can be adjusted freely in some range. The experimental results of the hardware skid simulator utilizing Motor-Generator setup verified the effectiveness of our proposed method.

Keywords

DC motors; adhesion; electric locomotives; machine control; motion control; observers; EV; adhesion control; back EMF compensation; current reduction characteristics; disturbance observer; electric locomotives; electric vehicle; hardware skid simulator; motor rotational speed; motor-generator setup; separately wound DC motor; skid prevention; torque characteristics; Adhesives; DC motors; Emulation; Laplace equations; Road vehicles; Tires; Torque; Vehicle driving; Vehicle dynamics; Wheels;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Motion Control, 2004. AMC '04. The 8th IEEE International Workshop on

Print_ISBN

0-7803-8300-1

Type

conf

DOI

10.1109/AMC.2004.1297645

Filename

1297645