Charge Timing Choice Behavior of Battery Electric Vehicle Users
This paper aims to examine choice behavior in respect of the time at which battery electric vehicle users charge their vehicles. The focus is on normal charging after the last trip of the day, and the alternatives presented are no charging, charging immediately after arrival, nighttime charging, and charging at other times. A mixed logit model with unobserved heterogeneity is applied to panel data extracted from a two-year field trial on battery electric vehicle usage in Japan. Estimation results, obtained using separate models for commercial and private vehicles, suggest that state of charge, interval in days before the next travel day, and vehicle-miles to be traveled on the next travel day are the main predictors for whether a user charges the vehicle or not, and that users tend to charge during the nighttime in the latter half of the trial. On the other hand, experience of fast charging has little or no effect on commercial users, while it prompts private users to charge immediately after arrival at home and to charge at nighttime. Further, the correlations between alternatives in the estimation results, especially the highly positive correlation between no charging and nighttime charging, reveal that it may be possible to encourage charging during off-peak hours to lessen the load on the electricity grid. This finding is supported by the high standard deviation for the alternative of nighttime charging.
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Supplemental Notes:
- Alternate title: Charge Timing Choice Behavior of Electric Vehicle Users. This paper was sponsored by TRB committee ADC80 Alternative Transportation Fuels and Technologies.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Sun, Xiaohui
- Yamamoto, Toshiyuki
- Morikawa, Takayuki
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Conference:
- Transportation Research Board 94th Annual Meeting
- Location: Washington DC, United States
- Date: 2015-1-11 to 2015-1-15
- Date: 2015
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 21p
- Monograph Title: TRB 94th Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Choice models; Drivers; Electric vehicle charging; Heterogeneity; Logits; Periods of the day
- Geographic Terms: Japan
- Subject Areas: Energy; Highways; Vehicles and Equipment; I90: Vehicles;
Filing Info
- Accession Number: 01554342
- Record Type: Publication
- Report/Paper Numbers: 15-2438
- Files: TRIS, TRB, ATRI
- Created Date: Feb 26 2015 9:49AM