Title :
The analysis and simulation of motor´s torque ripple in electric vehicle
Author :
Wang, Yeqin ; Jing, Hui ; Chen, Wei ; Wang, Xinjian
Author_Institution :
Coll. of Automotive Eng., Tongji Univ., Shanghai, China
Abstract :
Electric vehicle has speed vibration problem in Low-speed condition; one of the reasons is that the vehicle power-train resonates with motor´s torque ripple in low motor speed. This paper analyzes the reason of motor´s torque ripple in low speed; and proposes a method to reduced torque ripple in particular speed that vehicle power-train´s natural frequency corresponding to; and builds motor model and motor controlling model in equivalent circuit software; and summarizes of the method to reduce the motor´s torque ripple and vehicle´s speed vibration preliminarily.
Keywords :
electric vehicles; power transmission (mechanical); torque; vehicle dynamics; vibrations; electric vehicle; equivalent circuit software; low-speed condition; motor controlling model; motor torque ripple; speed vibration problem; vehicle power-train; Inductance; Permanent magnet motors; Synchronous motors; Torque; Vehicles; Vibrations; Windings; motor´s torque balance equitation; motor´s torque ripple; the equivalent circuit model; vector control; vehicle´s speed vibration;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768486