Document ID: chunk:federal_register_of_legislation:F2024L00447:reg:0:p53
Version: federal_register_of_legislation:F2024L00447
Segment Type: reg
Provision Reference: reg 0 (pt 53/57)
Character Range: 238932–241969

altitude signals

              4.3.3. Calculation of the final result

              The positive cumulative elevation gain of a total trip shall be calculated by integrating all positive interpolated and smoothed road grades, i.e., roadgrade,2(d). The result should be normalized by the total test distance dtot and expressed in meters of cumulative elevation gain per one hundred kilometres of distance.

              The waypoint vehicle speed vw shall then be calculated over each discrete way point of 1m:

For 3-phase WLTP evaluation all datasets with vw ≤ 100 km/h are used for the calculation of the cumulative positive altitude gain of the complete trip.
All of the positive interpolated and smoothed road gradients that correspond to ≤ 100 km/h datasets shall be integrated.
The number of 1m waypoints which correspond to ≤ 100 km/h datasets shall be integrated and converted to km to define the ≤ 100 km/h test distance d100 [km].
The positive cumulative elevation gain of the urban part of the trip shall then be calculated based on the vehicle speed over each discrete way point. All datasets with vw ≤ 60 km/h belong to the urban part of the trip. All of the positive interpolated and smoothed road grades that correspond to urban datasets shall be integrated.
              The number of 1m waypoints which correspond to urban datasets shall be integrated and converted to km to define the urban test distance d urban [km].

              The positive cumulative elevation gain of the urban part of a trip shall then be calculated by dividing the urban elevation gain by the urban test distance, and expressed in metres of cumulative elevation gain per one hundred kilometres of distance.

Annex 11

Calculation of the final RDE emissions results
              1. Introduction

              This annex describes the procedure to calculate the final criteria emissions for the complete and urban part of an RDE trip for the 3-phase and 4-phase WLTP.

              2. Symbols, Parameters and Units

              Index (k) refers to the category (t=total, u=urban, 1-2=first two phases of the WLTP test)

                         ICk is the distance share of usage of the internal combustion engine for an OVC-HEV over the RDE trip

                         dICE,k is the distance driven [km], with the internal combustion engine on for an OVC-HEV over the RDE trip

                         dEV,k is the distance driven [km], with the internal combustion engine off for an OVC-HEV over the RDE trip

                         MRDE,k is the final RDE distance-specific mass of gaseous pollutants [mg/km] or particle number [#/km]

                         mRDE,k is the distance-specific mass of gaseous pollutant [mg/km] or particle number [#/km] emissions, emitted over the complete RDE trip and prior to any correction in accordance with this annex

                          is the distance-specific mass of CO2 [g/km], emitted over the RDE trip

                          is the distance-specific mass of CO2 [g/km],