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A Comparative Study on Energy Management Strategies for an Automotive Range-Extender Electric Powertrain Tongji University
- Format:
- Book
- Conference/Event
- Author/Creator:
- Feng, Jian, author.
- Conference Name:
- Vehicle Electrification and Powertrain Diversification Technology Forum Part I (2021-11-25 : Shanghai, China)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- In this work, the influences of various real-timely available energy management strategies on vehicle fuel consumption (VFC) and energy flow of a range-extender electric vehicle were studied The strategies include single-point, multi-point, speed-following, and equivalent consumption minimization strategy. In addition, the dynamic programming method which cannot be used in real time, but can provide the optimal solution for a known drive situation was used for comparison. VFCs and energy flow characteristics with different strategies under Worldwide Harmonized Light Vehicles Test Cycle (WLTC) were obtained through computer modeling, and the results were verified experimentally on a range-extender test bench. The experimental results are consistent with the modeled ones in general with a maximum deviation of 4.11%, which verifies the accuracy of the simulation models. By comparing the results, it was found that the single-point and multi-point strategy delivered better VFC among the studied strategies. Further analysis of the energy loss revealed that although the battery loss of single-point strategy is greater, the engine loss is minimal. Thus, for the present powertrain configuration, a strategy with less engine loss should be selected. In a word, through the above series of comparisons, the fundamental differences in energy transmission and performance characteristics of different energy management strategies in extended-range powertrain are clearly revealed, which provides a good reference for engineering applications
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-01-7027
- Access Restriction:
- Restricted for use by site license
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