A Simulation Platform for Optimization of Electric Vehicles With Modular Drivetrain Topologies

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A Simulation Platform for Optimization of Electric Vehicles With Modular Drivetrain Topologies

Nemeth, Thomas / Bubert, Andreas / Becker, Jan N. / De Doncker, Rik W. / Sauer, Dirk Uwe

Ongoing electrification among all vehicle classes and growing demands for efficiency and driving power lead to a modularization of electric drivetrains. Multiple traction machines and battery packs of different types and power ratings can be used to meet the requirements for all vehicle types. This paper introduces a simulation methodology that can be used to evaluate and optimize modular drivetrains and their components. A flexible simulation platform and the models of all components of the electric drivetrain (battery, dc–dc converter, inverter, and traction machine) are presented. Novelties including silicon carbide-based dc–dc converters and hybrid battery storage systems are also described in detail. The functionality of this simulation tool is demonstrated with a comparison of three drivetrain configurations for a sports car. Finally, the simulation results are used to demonstrate the advantages and disadvantages of each topology.