5. Introducing a new vehicle.

Here follows an overview of the contents of the CO₂MPAS input file. The section provides information on the inputs that are expected to be filled in in the input file for CO₂MPAS to work. Please, be sure to check the glossary for the definitions used in the input file.

• The About tab Welcomes the user to the CO₂MPAS declaration file and provides indications on how to fill the file.

All the inputs required to run simulations with the CO₂MPAS model are provided through the input Excel file. Note that the tabs marked in red are required for the model to run in type approval mode.

• The Inputs tab has to be necessarily filled in to run simulations. This tab contains information regarding the simulated vehicle: characteristics of the engine, fuel, gearbox, tyres, and battery; road loads; CO₂ emission declared; drive modes; and further optional installed technologies. All the yellow cells are compulsory. Note that from input file version 2.2.6, the vehicle-family-id is a compulsory item that is automatically generated when filling in the items in cells C4 to C8. Some of the inputs have to be set by means of the dedicated drop-down menus.

• The NEDC-H and NEDC-L tabs are optional. These tabs are intended to be populated with the time series measured during the NEDC-H and NEDC-L tests, respectively in case that the theoretical NEDC cycle was not followed. Introduce time & velocity time-series, and/or gear, and/or bag phases. The provided time-series have to have the same length. If the NEDC gearshifting is provided it will override the default NEDC gearshifting. This is of use for vehicles with particular gearshifting as vehicles starting from 2nd gear in NEDC: "If the maximum speed which can be attained in first gear is below 15 km/h, the second, third and fourth gears shall be used for the urban cycle (Part One) and the second, third, fourth and fifth gears for the extra-urban cycle (Part Two). The second, third and fourth gears may also be used for the urban cycle (Part One) and the second, third, fourth and fifth gears for the extra-urban cycle (Part Two) when the manufacturer's instructions recommend starting in second gear on level ground, or when first gear is therein defined as a gear reserved for cross-country driving, crawling or towing.".
  For capped vehicles, the gearshifting and bag phases have to be provided together with the velocity profile in the respective columns.

• The WLTP-H and WLTP-L tabs are intended to be populated with the time series measured during the WLTP-H and WLTP-L tests, respectively. The time series are used to calibrate the CO₂MPAS model. At least one of the two tabs has to filled in to enable CO₂MPAS model to run. The tabs contain the following time series: time, dyno velocity, obd velocity, engine speed, engine coolant temperature, engine load, alternator and battery currents. The bag_phases column is to be filled only for non-standard WLTC such as for capped vehicles and it used to properly calibrate the model. The columns must have the same length.

• The prediction.WLTP is an optional tab. It aims at calculating emission with specific velocity profile and/or bag phases and/or gearshifting pattern. If the tab is left empty, emissions are calculated based on the theoretical WLTP velocities and gear shifts. For capped vehicles, the WLTP bag_phases time series has to be provided in the appropiate column. The contents of this tab do not affect the NEDC prediction and thus the calculation of the CO₂MPAS deviation.

• The gear_box_ratios tab is compulsory. The model requires the ratio of each gear to run unless it is a vehicle with a CVT transmission. For vehicles with more than 1 final drive, the parameter final drive ratio in the Inputs has to be left empty and the final drive ratios array in the gear_box_ratios tab has to be filled in with the final drive applied to each gear.

• The active_cylinder ratios is only required when the vehicle's engine is equipped with cylinder deactivation technology. Set the ratios of deactivation of cylinders of the engine in this tab (i.e. a vehicle with 4 cylinders that deactivates 2 cylinders has a ratio of 0.5).

• The T1_map tab is required. The T1 map (array of speed, and power) of the tested vehicle has to be provided as a way to establish the full load curve (the information regarding the max engine power, the engine max speed at max power, and the max torque is taken by CO₂MPAS from this tab).

Technologies:

Since v1.4.1("Rally"), it is possible to declare a series of technologies for the vehicle, though some are marked as "untested" due to the lack of sufficient experimental data for their validation:

	positive ignition	compression ignition
Variable Valve Actuation (VVA):	Declare if present	Not enabled
Lean Burn:	Declare if present	Not relevant
Cylinder Deactivation:	Declaration Optional in V1.4.X (not validated)	Declaration Optional in V1.4.X (not validated)
Exhaust Gas Re-circulation (EGR):	Declaration Optional in V1.4.X (not validated)	Declare if present
Selective Catalytic Reduction (SCR):	Not Enabled	Declaration Optional in V1.4.X (not validated)
Gearbox Thermal Management:	Declaration Optional in V1.4.X (not validated)	Declaration Optional in V1.4.X (not validated)

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