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Control Analysis for Efficiency Optimization of a High Performance Hybrid Electric Vehicle with Both Pre and Post Transmission Motors
Technical Paper
2016-01-1253
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The drive to improve and optimize hybrid vehicle performance is increasing with the growth of the market. With this market growth, the automotive industry has recognized a need to train and educate the next generation of engineers in hybrid vehicle design. The University of Waterloo Alternative Fuels Team (UWAFT), as part of the EcoCAR 3 competition, has developed a control strategy for a novel parallel-split hybrid architecture. This architecture features an engine, transmission and two electric motors; one pre-transmission motor and one post-transmission motor.
The control strategy operates these powertrain components in a series, parallel, and all electric power flow, switching between these strategies to optimize the energy efficiency of the vehicle. Control strategies for these three power flows are compared through optimization of efficiencies within the powertrain. The resulting control strategy optimizations used by the team have increased the vehicle’s charge depleting range by 27.7 %., while decreasing energy consumption by 13.8 %. Additionally it produced a 30.5 % increase in miles per gallon gasoline equivalent in charge sustaining mode, increasing total range by 30.2%.
Authors
- Patrick Ellsworth - University of Waterloo
- Roydon Fraser - University of Waterloo
- Michael Fowler - University of Waterloo
- Daniel VanLanen - University of Waterloo
- Ben Gaffney - University of Waterloo
- Caixia Wang - University of Waterloo
- Trong Shen - University of Waterloo
- Wenhao Wu - University of Waterloo
- Paul McInnis - University of Waterloo
Topic
Citation
Ellsworth, P., Fraser, R., Fowler, M., VanLanen, D. et al., "Control Analysis for Efficiency Optimization of a High Performance Hybrid Electric Vehicle with Both Pre and Post Transmission Motors," SAE Technical Paper 2016-01-1253, 2016, https://doi.org/10.4271/2016-01-1253.Also In
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