Technical Paper
Route-Optimized Energy Usage For A Plug-in Hybrid Electric Vehicle Using Mode Blending
2024-04-09
2024-01-2775
This paper presents a methodology to optimize the blending of charge-depleting (CD) and charge-sustaining (CS) modes in a multi-mode plug-in hybrid electric vehicle (PHEV). The objective of the optimization is to best use the to best utilize onboard energy for minimum overall energy consumption based on speed and elevation profile. The Optimization reduces overall energy consumption when the selected route cannot be completely driven in all-electric mode. The optimization method used splits the drive cycle into constant distance segments, then uses a reduced order model to sort the segments by best use of battery energy vs. fuel energy. The PHEV used in this investigation is the 2021 Chrysler Pacifica. Results support energy savings up to 20% which depend on the route and initial battery SOC. Initial optimization takes less then 4 seconds for 24 miles and less then 10 seconds for 96 miles.