Computer Aided Match Method for Matching the Electrical Motor and the Gearbox of the Pure Electrical Vehicle - Advanced Research on Computer Education, Simulation and Modeling - page 13

Fig. 14. Driving force of different ratios Fig. 15. 80% efficiency area and force intersection
The driving force curve of different ratios and the resistance force curve which is
shown in Fig. 14 can be plotted using MATLAB. It can be seen from Fig.14 that the
power performance is satisfied. Then plot the intersection point of the driving force of
the same pedal voltage and different ratios using “+” in Fig. 13, which is shown in
Fig. 15. the intersection point is gained using “ginput” command in Fig. 14.
It can be seen that the intersection point curve of the driving force pass through the
high efficiency concurrent area when the pedal voltage is low. Therefore, the power
performance and the economy could be satisfied simultaneously.
5 Conclusion
A computer aided matching method for match gearbox and the electrical motor of the
pure electrical vehicle based on the MATLAB is described in the forgoing paragraph
by a particular designing case.
The method is based on the character of the motor, so the power performance and
the economy could be satisfied simultaneously.
The whole matching process is visible by the assistance of MATLAB, so the
designing productivity is increased.
If an automated transmission system is adopted in the pure electrical vehicle, the
shifting schedule could be obtained expediently using this computer aided matching
method.
References
1. Liu, H., Yin, H., Wang, Q., Liu, P.: Design and Simulation of Power-train Matching for
Micro-electric Cars. Micro Electrical Motor 43, 56-58 (2010)
2. Ji, F., Gao, F., Wu, Z.: Interval Optimization Method of Power Train Parameters in Pure
Electric Car. Transactions of the Chinese Society for Agricultural Machinery 37, 5-7 (2006)
3. Zeng, H., Huang, J.: The Matching of EV between the Motor and Transmission. Equipment
Manufacturing Technology 2, 40-42 (2010)
4. Zha, H., Zong, Z., Liu, Z., Wu, Q.: Matching Design and Simulation of Power Train
Parameters for Electrical Vehicle. ACTA Scientiarum Natrualium Universitatis Sunyatseni
49, 4-51 (2010)
5. Yu, Z.: Automotive Theory, 2nd edn. Mechanical Industry Press, Beijing (1999)