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Influence of User Preferences on the Revealed Utility Factor of Plug-In Hybrid Electric Vehicles †

1
Transportation Technology and Policy Graduate Group, Plug-in Hybrid and Electric Vehicle Research Center, Institute of Transportation Studies, 1590 Tilia Street, Davis, CA 95616, USA
2
Director, Plug-in Hybrid and Electric Vehicle Research Center, Institute of Transportation Studies, 1590 Tilia Street, Davis, CA 95616, USA
*
Author to whom correspondence should be addressed.
A previous version of this paper was presented at the 32nd Electric Vehicles Symposium, Lyon, France, in May 2019. Session E7, Paper # 6160341.
World Electr. Veh. J. 2020, 11(1), 6; https://doi.org/10.3390/wevj11010006
Received: 28 November 2019 / Revised: 18 December 2019 / Accepted: 18 December 2019 / Published: 22 December 2019
Plug-in hybrid electric vehicles (PHEVs) are an effective intermediate vehicle technology option in the long-term transition pathway towards light-duty vehicle electrification. Their net environmental impact is evaluated using the performance metric Utility Factor (UF), which quantifies the fraction of vehicle miles traveled (VMT) on electricity. There are concerns about the gap between Environmental Protection Agency (EPA) sticker label and real-world UF due to the inability of test cycles to represent actual driving conditions and assumptions about their driving and charging differing from their actual usage patterns. Using multi-year longitudinal data from 153 PHEVs (11–53 miles all-electric range) in California, this paper systematically evaluates how observed driving and charging, energy consumption, and UF differs from sticker label expectations. Principal Components Analysis and regression model results indicated that UF of short-range PHEVs (less than 20-mile range) was lower than label expectations mainly due to higher annual VMT and high-speed driving. Long-distance travel and high-speed driving were the major reasons for the lower UF of longer-range PHEVs (at least 35-mile range) compared to label values. Enhancing charging infrastructure access at both home and away locations, and increasing the frequency of home charging, improves the UF of short-range and longer-range PHEVs respectively. View Full-Text
Keywords: longitudinal data; plug-in hybrid electric vehicle (PHEV); utility factor (UF) longitudinal data; plug-in hybrid electric vehicle (PHEV); utility factor (UF)
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MDPI and ACS Style

Srinivasa Raghavan, S.; Tal, G. Influence of User Preferences on the Revealed Utility Factor of Plug-In Hybrid Electric Vehicles. World Electr. Veh. J. 2020, 11, 6. https://doi.org/10.3390/wevj11010006

AMA Style

Srinivasa Raghavan S, Tal G. Influence of User Preferences on the Revealed Utility Factor of Plug-In Hybrid Electric Vehicles. World Electric Vehicle Journal. 2020; 11(1):6. https://doi.org/10.3390/wevj11010006

Chicago/Turabian Style

Srinivasa Raghavan, Seshadri, and Gil Tal. 2020. "Influence of User Preferences on the Revealed Utility Factor of Plug-In Hybrid Electric Vehicles" World Electric Vehicle Journal 11, no. 1: 6. https://doi.org/10.3390/wevj11010006

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