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In the thesis project IEPC CO2 data influence on VECTO simulation, the component performance of integrated electric powertrain components (IEPC) with different DC power levels, and different numbers of gears, was studied. The vehicle performance of battery electric vehicles (BEV) of vehicle groups 5, 9, and 10 was also evaluated. The study was performed in accordance with the CO2 certification measures described in the determination Regulation (EU) 2017/2400 and the amending Regulation (EU) 2022/1379. The certification does not only treat CO2 values specifically, but also the energy consumption of vehicles. The software VECTO, developed to effectively enforce compliance with the regulations, was used to determine the energy consumption for different simulation scenarios (and the parameters influencing, or being influenced by, it). Only zero-emission heavy-duty vehicles (ZEV) were studied. Therefore, no CO2 values were calculated, but the procedure of the calculations was studied in order to gain an increased understanding of the certification procedure and reporting. From the simulations performed, important results were obtained such as optimised operational range values for different simulation scenarios. Future testing and development could be based on the increased understanding gained from this project, resulting in more efficient and cost-effective testing procedures. The goal is that the project report and project presentation could serve as an introduction to CO2 certification and VECTO simulations of vehicles and components and be helpful in the context of similar future studies.

More specifically, the study proved that input data based on measured component data, more torque steps, and fewer driving axles, had a positive impact on the operational range of the vehicle for different mission profiles. In this study, the difference between the highest and the lowest operational range value obtained for a specific mission profile subgroup was as high as 15%–27%. Conclusions were also drawn regarding what impact different driving cycles, power levels, and output shaft torque speed values, had on the results.