Your certified trailblazer
Ready for VECTO: Certified simulation for maximum efficiency
Lorries and buses account for around a quarter of all CO₂ emissions from road transport. However, the Paris Agreement stipulates that lorry manufacturers must reduce the average CO2 emissions of new commercial vehicles by 15% by 2025 compared with 2019, and by 30% by 2030. To monitor this, the VECTO simulation tool was developed in 2019. This tool can be used to calculate the fuel consumption and CO₂ emissions of commercial vehicles. Truck manufacturers must now record the VECTO value for each of their vehicles.


OUR SOLUTION
VECTO: Vehicle Energy Consumption Calculation Tool
The following data is required to calculate the VECTO value:
- Simulated driving behaviour
- Engine power
- Tyre rolling resistance
- Aerodynamic drag coefficient (cw)
Aerodynamic drag can be determined by means of an experimental constant-speed test. However, this method proves to be very labour-intensive.

The Vecto Tool
Why act now?
One alternative is to determine the drag coefficient using CFD analysis. However, in order to use the drag coefficients calculated by a CFD analysis in VECTO, the analysis expert must be certified. To obtain certification, the analyst must demonstrate the quality of their simulation results by carrying out a comparative simulation themselves.
To do this, a drag coefficient analysis must be performed using a basic simulation model provided by the EU. In addition to the original base model, calculations involving add-on components must also be demonstrated. This involves integrating Tall Rear Flaps (TRF) and Long Side Covers (LSC) into the base model and repeating the drag coefficient simulation.
CFD analysis: fast, smart, sustainable
Your alternative to the prototype
Independence from physical components
Digital simulation – faster development without physical prototypes.
Cost and time savings
There is no need for prototype production, and adjustments to the simulation model can be implemented at short notice.
Automated results analysis
Results can be displayed and compared at the touch of a button.
No external influences
Weather conditions and other environmental factors do not affect the analysis.
CO₂ reduction
The elimination of physical tests reduces emissions.
A better understanding of fluid flow
Detailed visualisations enable a more in-depth analysis of flow phenomena.
DOWNLOAD
Vecto Factsheet
Further solutions