Study on optimizing torque distribution strategy for independent 4WD electric vehicle

Author

Lin Cheng ; Chen Xing ; Shi Junhui

Author_Institution

Sch. of Mech. Eng., Beijing Inst. of Technol., Beijing, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

6

Abstract

This paper looks into the energy efficiency optimization problem of electric vehicle driven by four independent motors by developing an optimizing torque distribution strategy based on the motor efficiency map. Firstly analyzing the efficiency characteristic of the driven motor and deriving the optimizing objective function, considering the limitation of the road adhesion force, and the torque distribution coefficient is got by numerical computation. Simulation test is carried out on different adhesion coefficient road and over the ECE(Economic Commission for Europe) based on the Matlab/Simulink platform. The simulation results certify the effectiveness of this strategy.

Keywords

adhesion; battery powered vehicles; energy conservation; optimisation; permanent magnet motors; power distribution economics; road vehicles; synchronous motors; ECE; Economic Commission for Europe; electric vehicle energy efficiency optimization problem; independent 4WD electric vehicle motor efficiency; numerical computation; permanent magnet synchronus motor; road adhesion force coefficient; torque distribution coefficient; torque distribution strategy optimization; Adhesives; Electric vehicles; Mathematical model; Permanent magnet motors; Roads; Torque; electric vehicle; motor efficiency; torque distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940941

Filename

6940941