A Matlab-based modeling and simulation package for electric and hybrid electric vehicle design

This paper discusses a simulation and modeling package developed at Texas A &M University, V-Elph 2.01. V-Elph facilitates in-depth studies of electric vehicle (EV) and hybrid EV (HEV) configurations or energy management strat egies through visual programming by creating components as hierarchical sub systems that can be used interchangeably as embedded systems, V-Elph is com posed of detailed models of four major types of components: electric motors , internal combustion engines, batteries, and support components that can b e integrated to model and simulate drive trains having all electric, series hybrid, and parallel hybrid configurations. V-Elph was written in the Matl ab/Simulink graphical simulation language and is portable to most computer platforms. This paper also discusses the methodology for designing vehicle drive train s using the V-Elph package. An EV, a series HEV, a parallel HEV, and a conv entional internal combustion engine (ICE) driven drive train have been desi gned using the simulation package. Simulation results such as fuel consumpt ion, vehicle emissions, and complexity are compared and discussed for each vehicle.