2.3.2.Vehicles with Compression Ignition EnginesU.K.
2.3.2.1.The following bench ageing procedure is applicable for compression-ignition vehicles including hybrid vehicles.U.K.
The bench ageing procedure requires the installation of the aftertreatment system on a aftertreatment system ageing bench.
Ageing on the bench is conducted by following the standard diesel bench cycle (SDBC) for the number of regenerations/desulphurisations calculated from the bench ageing duration (BAD) equation.
2.3.2.2.Standard Diesel Bench Cycle (SDBC). Standard bench ageing is conducted following the SDBC. The SDBC shall be run for the period of time calculated from the bench ageing duration (BAD) equation. The SDBC is described in Appendix 2 of this Annex.U.K.
2.3.2.3.Regeneration data. Regeneration intervals shall be measured during at least 10 full cycles of the SRC cycle as described in Appendix 3. As an alternative the intervals from the Ki determination may be used.U.K.
If applicable, desulphurisation intervals shall also be considered based on manufacturer’s data
2.3.2.4.Diesel bench-ageing duration. Bench ageing duration is calculated using the BAD equation as follows:U.K.
Bench-Ageing Duration = number of regeneration and/or desulphurisation cycles (whichever is the longer) equivalent to 160 000 km of driving
2.3.2.5.Ageing Bench. The ageing bench shall follow the SDBC and deliver appropriate exhaust flow, exhaust constituents, and exhaust temperature to the aftertreatment system inlet.U.K.
The manufacturer shall record the number of regenerations/desulphurisations (if applicable) to assure that sufficient ageing has actually occurred.