Method for evaluating the real-world driving energy consumptions of electric vehicles

Xinmei Yuan, Chuanpu Zhang, Guokai Hong, Xueqi Huang and Lili Li

Energy, 2017, vol. 141, issue C, 1955-1968

Abstract: Energy consumption directly determines the environmental benefits and driving range of electric vehicles. The energy consumptions of vehicles are generally evaluated using standardized driving cycle tests; however, the results from standardized driving cycle tests deviate from the results characterizing real driving and present opportunities for cheating. The evaluation of the real-world driving energy consumptions of electric vehicles is becoming a requirement in proposed vehicle regulations. In this paper, a method for evaluating the energy consumption characteristics of electric vehicles under real-world driving conditions is proposed. A simplified analytical function for estimating the energy consumption of an electric vehicle is derived. Using regression analysis, the effects of driving conditions are decoupled, and the independent energy consumption characteristics are obtained. Simulation and experimental data are used to validate the proposed method. The results show that the independent energy consumption characteristics obtained by the proposed method perfectly represent the energy consumptions of electric vehicles under different driving conditions. Therefore, the proposed method represents a possible alternative mechanism for extending the scope of energy consumption evaluations of electric vehicles, providing a basis for the comprehensive assessment of the environmental benefits of electric vehicles.

Keywords: Electric vehicles; Driving cycle; Real driving; Energy consumption evaluation; Regulation (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (37)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:141:y:2017:i:c:p:1955-1968

DOI: 10.1016/j.energy.2017.11.134

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