Concept & Methodology

The VISION-xEV concept is about mastering component development and system integration complexity by providing a highly efficient and virtual component and system integration framework to reduce development time and costs for all future electrified powertrains.

Based on simulation models of the powertrain components, such as electrical energy storage and energy conversion, internal combustion engine and after-treatment system, the transmission/driveline and the vehicle, the models needed for the thermal management (powertrain cooling & HVAC system) and the related controller models,  the VISION-xEV component and system integration framework is developed according to the following methodology: 

  • Elaboration of novel high-fidelity and reduced order models as well as the related parameter identification strategies and methods for the xEV relevant powertrain components, and validation against experimental data.
  • Coupling and interfacing of the newly developed models with the various in-house research codes and major commercial software tools in order to ensure numerically stable and robust solutions, in addition to ease of use and flexible exchange of models  among the different stakeholders. Specific emphasize is put on achieving the highest possible degree of modularity and flexibility in order to enable evaluation of a large variety of component combinations within future electrified/hybrid powertrains.
  • As a major outcome of VISION-xEV a neutral component and system model integration and co-simulation approach is envisioned, enabling seamless interoperability of component and sub-system models originating from different sources and based on the major relevant commercial / non-commercial simulation platforms currently used in the automotive community. This is demonstrated for 4 Use-cases defined at the start of the project.
Schematic of the VISION-xEV building blocks