A statistical analysis of energy and power demand for the tractive purposes of an electric vehicle in urban traffic - an analysis of a short and long observation period

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Slaski, G.^1 ; Ohde, B.^1

Poznan University of Technology, Poznan, Poland^1

关键词: Coefficient of variation;    Data distribution;    Electric power;    Macroscopic energy;    Observation Period;    Standard deviation;    Statistical dispersion;    Vehicle energy consumption;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012027/pdf
DOI  :  10.1088/1757-899X/148/1/012027

来源: IOP

【 摘 要 】

The article presents the results of a statistical dispersion analysis of an energy and power demand for tractive purposes of a battery electric vehicle. The authors compare data distribution for different values of an average speed in two approaches, namely a short and long period of observation. The short period of observation (generally around several hundred meters) results from a previously proposed macroscopic energy consumption model based on an average speed per road section. This approach yielded high values of standard deviation and coefficient of variation (the ratio between standard deviation and the mean) around 0.7-1.2. The long period of observation (about several kilometers long) is similar in length to standardized speed cycles used in testing a vehicle energy consumption and available range. The data were analysed to determine the impact of observation length on the energy and power demand variation. The analysis was based on a simulation of electric power and energy consumption performed with speed profiles data recorded in Poznan agglomeration.