Impact of road gradient on energy consumption of electric vehicles

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Indexed by:期刊论文

Date of Publication:2017-07-01

Journal:TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

Included Journals:SCIE、EI、SSCI、Scopus

Volume:54

Page Number:74-81

ISSN No.:1361-9209

Key Words:Electric vehicle; Energy efficiency; Road gradient; Fixed effect model

Abstract:We investigate the impact of road gradient on the electricity consumption of electric vehicles (EVs) by combining long-term GPS tracking data with digital elevation map (DEM) data for roads in Aichi prefecture, Japan. Eight regression models are constructed and analysed to compare the differences between linear and logarithmic forms of trip energy consumption, differences between considering the road gradient or not, and differences between considering the fixed effects of EVs or not. By categorizing gradients and assigning a percentage of the trip distance to each category, a significantly better model of electricity consumption can be achieved. The results of this study are a novel contribution toward understanding the challenges and benefits associated with downgrade braking on energy regeneration. (C) 2017 Elsevier Ltd. All rights reserved.

Date of Publication:2017-07-01