Browse Publications Technical Papers 2017-01-1594

Matching Design and Parameter Sensitivity Analysis of Micro Electric Vehicle Drive-motor’s Power 2017-01-1594

Micro electric vehicle has gained increasingly popularity among the public due to its compact size and reasonable price in China in recent years. Since design factors that influence the power of electric vehicle drive-motor like maximum speed, acceleration time and so on are not fixed but varies in certain scopes. Therefore, to optimize the process of matching drive-motor’s power, qualitatively and quantitatively studies should be done to determine the optimal parameter combination and improve the design efficiency.
In this paper, three basic operating conditions including driving at top speed, ascending and acceleration are considered in the matching process. And the Sobol’ method of global sensitivity analysis (GSA) is applied to evaluate the importance of design factors to the drive-motor’s power in each working mode. Then the most influential factors in determining the peak power are identified with Sobol’ method and an improved algorithm proposed in the paper by regarding the design process as a black-box model since the power of drive-motor must meet the three performance requirements of micro electric vehicle after all. Finally, local sensitivity analysis (LSA) based on the perturbation method is adopted to evaluate the impact of parameters variation on the power of drive-motor in a small range. In conclusion, the sensitivity analysis results reveal that acceleration time, vehicle’s maximum speed and the speed ratio of the drive-motor are the most crucial factors in the matching process while the others can be neglected under given conditions thus providing a reference to the enhancement of micro electric vehicle’s design efficiency.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 17% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

Study on the Effect of Inverter Modulation Methods and Operating Condition on Common Mode EMI for Motor Drive System


View Details


Switching Frequency Optimization of Boost Converter for HEV Applications


View Details


Implementation of an Optimal Control Like Energy Management for Hybrid Vehicles based on Driving Profiles


View Details