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Title:

Eco-Routing Method for Electric Vehicles based on the Distribution of Vehicle Specific Power: A Case Study in Beijing

Accession Number:

01763904

Record Type:

Component

Abstract:

Electric vehicles (EVs) and eco-routing strategies have both attracted more and more attention as road transportation are associated with an increasing trend in energy consumption. Existing research shows that the current eco-routing strategies for traffic flows applies the strategy for conventional vehicles (CVs) based on the energy consumption characteristics of CVs. However, the energy consumption of combustion engines and electric motors are significantly different. It leads to different energy consumption characteristics of EVs and CVs, especially during urban driving conditions. It cannot maximize the energy-saving efficiency for EVs when using the eco-routes planned for CVs. The distribution of vehicle-specific power (VSP) represents better the traffic variations for modeling energy consumption of traffic flows, compared with city-specific driving cycles. In this context, this study designed an eco-routing method for EVs, primarily based on the energy consumption rates and the facility- and speed-specific VSP distribution of EVs. The method includes three parts: 1) Analyzing the difference in energy consumption rates of CVs and EVs in VSP bins; 2) Analyzing the effects of different speed correction factors (SCFs) on the energy consumption factor of EVs and CVs further; 3) Proposing different eco-routing strategies for EVs and CVs. Results of a case study in Beijing show that the method performs well in evaluating the energy consumption for both CVs and EVs. CVs and EVs have a noticeable distinction in eco-routes. For EVs, it obtained 11.3% extra energy savings by using the proposed eco-routing method for EVs comparing with using the method for CVs.

Supplemental Notes:

This paper was sponsored by TRB committee AMS10 Standing Committee on Air Quality and Greenhouse Gas Mitigation. Alternate title: Eco-Routing Method for Electric Vehicles based on Vehicle Specific Power: A Case Study in Beijing

Report/Paper Numbers:

TRBAM-21-04180

Language:

English

Corporate Authors:

Transportation Research Board

Authors:

Lei, Xue
Song, Guohua
Zhai, Zhiqiang
Wu, Yizheng
Li, Zufen

Pagination:

19p

Publication Date:

2021

Conference:

Transportation Research Board 100th Annual Meeting

Location: Washington DC, United States
Date: 2021-1-5 to 2021-1-29
Sponsors: Transportation Research Board; Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Beijing (China)

Subject Areas:

Environment; Highways; Operations and Traffic Management

Source Data:

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-04180

Files:

TRIS, TRB, ATRI

Created Date:

Dec 23 2020 11:14AM