ANNEX VVERIFYING ENGINE DATA

Appendix 8Important evaluation steps and equations of the engine pre-processing tool

4.Simulation of FC and cycle work over WHTC and respective subparts for actual engine for certification

4.1.

WHTC reference points are denormalized using the full load curve input in originally recorded resolution

4.2.

FC is calculated for WHTC denormalized reference values for engine speed and torque from subpoint 4.1

4.3.

FC is calculated with engine inertia set to 0

4.4.

FC is calculated with standard PT1-function (as in main vehicle simulation) for engine torque response active

4.5.

FC for all motoring points is set to 0

4.6.

FC for all non-motoring engine operation points is calculated from FC map by Delaunay interpolation method (as in main vehicle simulation)

4.7.

Cycle work and FC are calculated according to equations defined in paragraphs 5.1 and 5.2 of this Annex

4.8.

Simulated specific FC values are calculated analogous to equations defined in paragraphs 5.3.1 and 5.3.2 of this Annex for measured values