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Get Free AccessWith the current energy environment background and development of the electrification of the automotive industry, a comprehensive economic indicator, in which the battery aging is further considered on the basis of conventional energy consumption, is proposed to research the energy optimization problem of two-speed electric vehicles. Firstly, a battery life model that adapts to vehicles under high dynamic conditions is introduced. Then, the speed optimal control problem of the two-speed electric vehicles in the acceleration–cruise–deceleration process is established and solved. Finally, the simulation results of two different performance indicators are contrasted and the performance improvement of the two-speed gearbox to the electric vehicles is analyzed. The simulation results under various working scenarios and driving cycles demonstrate that, compared with the conventional economic indicator considering the energy consumption only, the proposed economic indicator can significantly improve the battery life. In addition, it can also be seen that, compared with the one-speed electric vehicles, the application of a two-speed gearbox provides better performance from the aspects of battery aging saving and energy consumption.
Ying Lyu, Xuenan Sun, Hongyan Chu, Bingzhao Gao (2020). Improvement of Battery Life and Energy Economy for Electric Vehicles with Two-Speed Transmission. Energies, 13(13), pp. 3409-3409, DOI: 10.3390/en13133409.
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Type
Article
Year
2020
Authors
4
Datasets
0
Total Files
0
Language
English
Journal
Energies
DOI
10.3390/en13133409
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