What question did this study set out to answer?

This research aims to enhance the accuracy of energy consumption calculations for light battery electric vehicles (BEVs) by comparing model predictions to real-world data.

March 26, 2026Open Access

Study of energy consumption calculation model accuracy for light BEV

Key Points

This research aims to enhance the accuracy of energy consumption calculations for light battery electric vehicles (BEVs) by comparing model predictions to real-world data.
Developed a motor efficiency map using a chassis dynamometer.
Created an energy consumption calculation model in MATLAB/Simulink.
Utilized traffic flow simulation (SUMO) to analyze energy usage patterns.
Conducted real road tests in Utsunomiya City for validation.
The energy consumption model predictions aligned closely with real road test results.
Reported improvements in mileage per charge based on simulation data.
Verified calculation accuracy with a focus on real-world driving conditions.

Abstract

In order to achieve carbon neutrality in 2050, sales of BEVs are increasing worldwide, and large number of light BEVs sold in Japan. We believe that it is effective to combine a numerical model of an electric vehicle using Matlab with a traffic flow simulation (SUMO) to study methods for improving energy consumption, with the aim of improving the mileage per charge on real roads. In this study, we created a motor efficiency map using a chassis dynamometer and created a light BEV energy consumption calculation model using Matlab/simulink. We will report the results of verifying the calculation accuracy of energy consumption calculation model by comparing with the results of real road test results in Utsunomiya City.

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