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Dynamic modeling and simulation of starting and acceleration for electric vehicle(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年06期
Page:
98-102
Research Field:
Publishing date:
2009-12-20

Info

Title:
Dynamic modeling and simulation of starting and acceleration for electric vehicle
Author(s):
WANG Guiping1; 2;  MA Jian2;  YANG Panpan1;  YAN Maode1
1. School of Electronic and Control Engineering, Changan University, Xian 710064, Shaanxi, China; 2. School of Automobile, Changan University, Xian 710064, Shaanxi, China
Keywords:
automobile engineering;  electric vehicle;  brushless direct current motor;  starting and acceleration process;  double closedloop speed regulating system
PACS:
U469.72
DOI:
-
Abstract:
In order to enhance the performance of starting and acceleration processes for electric vehicle (EV) driven by singlemotor, the dynamic model is presented by analyzing the equation of running resistance and the mathematic model of brushless directing current motor (BLDCM), which can realize the reasonable combination of vehicle and motor. On the basis of this dynamic model, the simulation model of vehicle speed and current double closedloop speed regulating system is established, and the step response of vehicle speed is simulated by employing the Matlab 7.0/Simulink software. The results show that: the mechanical properties of motor can be improved by using speed and current dualloop speed control strategy that makes the starting and acceleration processes to correspond with the drivers driving habits; the overshoot is small, the output speed following input signal changes quickly, and the system has better performance and stronger antiinterfere ability. Therefore, the double closedloop speed regulating system can satisfy the demands of starting and acceleration process for driving system of EV. 7 figs, 9 refs.

References:

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Last Update: 2009-12-20