Advanced hybrid vehicle architectures can exploit multiple power sources and
optimal control to achieve high efficiency operation. In this work, a method for
generating the best-possible energy efficiency benchmark for a hybrid architecture
is introduced. The benchmark program uses Dynamic Programming to analyse a
reduced-fidelity MATLAB model over standard driving cycles, and bypasses vehicle
controls to identify the optimal control actions and resulting fuel consumption of the
Series-Parallel Multiple-Regime retrofitted PHEV of the UVic EcoCAR2 program.
The simulation results indicate an optimal fuel consumption value of 4.74L/100km,
in the parallel regime, compared to the stock Malibu's 8.83L/100km. The results are
found to be sensitive to the allowed level of regenerative braking, with an optimal
consumption value of 6.56L/100km obtained with restricted regen power limits. The
parallel regime provided more efficient operation overall, especially during more aggressive driving conditions. However, the series regime provided more desirable operation during gentle driving conditions, where opportunities for regenerative braking
are limited.
The generated powertrain control profiles were then used to drive a higher-fidelity
Simulink model. Due to the significant difference between the model structures of
the MATLAB and Simulink models, comparison of results were not conclusive. A
different simulation approach is required to make this proof-of-concept more useful
for controls development. This research forms the foundation for further studies. / Graduate / 0540 / snkaban@gmail.com
| Identifer | oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/5992 |
| Date | 23 April 2015 |
| Creators | Kaban, Stefan |
| Contributors | Dong, Zuomin, Crawford, Curran |
| Source Sets | University of Victoria |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Rights | Available to the World Wide Web, http://creativecommons.org/publicdomain/zero/1.0/ |
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