Transmission Ratio Optimization of Two-Speed Pure Electric Vehicle

Zi Qiang Tang; Dang Ping Ma; Xian Wu Gong

doi:10.4028/www.scientific.net/AMM.722.271

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 722Transmission Ratio Optimization of Two-Speed Pure...

Transmission Ratio Optimization of Two-Speed Pure Electric Vehicle

Abstract:

In order to improve the driving range of two-speed pure electric vehicle (EV), within the constraint of EV power performance, and the optimization objective is the minimum vehicle energy consumption under the NEDC (New European Driving Cycle) drive cycle, transmission ratios of an EV were optimized by using genetic algorithm (GA) under the economy shift schedule. The driving range and the power performance before and after transmission ratio optimization were analyzed. Simulation results show that the proposed optimization algorithm is effective, and the driving range improves by 1.73% and the acceleration time increases by 0.006s after optimization, but still meets the requirements of vehicle power performances.

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Periodical:

Applied Mechanics and Materials (Volume 722)

Pages:

271-275

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.722.271

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Online since:

December 2014

Authors:

Zi Qiang Tang*, Dang Ping Ma, Xian Wu Gong

Keywords:

Economic Shift Schedule, Genetic Algorithm (GA), Pure Electric Vehicle, Transmission Ratio Optimization

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* - Corresponding Author

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