VECTO is the simulation tool that has been developed by the European
Commission and is used for determining CO2 emissions and Fuel Consumption
from Heavy Duty Vehicles (trucks, buses and coaches) with a Gross Vehicle
Weight above 3500kg.
Since 1 January 2019, the tool is mandatory for new trucks under certain
vehicle categories in application to the certification legislation under
type approval.
CO2 emissions and fuel consumption data determined with VECTO, together
with other related parameters, must be monitored and reported to the
Commission by Member States and manufacturers, and made publicly available
for each of those new trucks.
Five different mission profiles for trucks and five different mission
profiles for buses and coaches have been developed and implemented in the
tool to better reflect the current European fleet. VECTO is a downloadable
executable file designed to operate on a single computer.
The inputs for VECTO are characteristic parameters to determine the power
consumption of every relevant vehicle component. Among others, the
parameters for rolling resistance, air drag, masses and inertias, gearbox
friction, auxiliary power and engine performance are input values to
simulate fuel consumption and CO2 emissions on standardised driving
cycles.