Electric Bus Forward and Backward Models Validation Methodology Based on Dynamometer Tests Measurements

Abstract

The main research areas on electro mobility converge from the same simulation tool as research method, the power flow simulation model. The simulation of electric buses is fast and relatively accurate way for energy efficiency studies. This is the reaso that a validated model with real data from an electric bus is crucial. This paper aims to develop a methodology for validating the power train model of a vehicle. A sequential approach has been proposed starting from the dynamometer speed and acceleration profiles determination from the dynamometer. Taking the dynamometer data as a reference the backward model wheel forces constants and powertrain efficiencies are determined. Finally, once the bakcward model has been validated the forward model is validated using the backward model as a reference.