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Division 4.3.5 Fuel consumption mapping cycle (FCMC)

United Kingdom

Original text. Later amendments are not shown.

The fuel consumption mapping cycle (FCMC) in accordance with this paragraph shall be omitted for all other engines except the CO2-parent engine of the engine CO2-family. The fuel map data recorded for the CO2-parent engine of the engine CO2-family shall also be applicable to all engines within the same engine CO2-family.

In the case that upon request of the manufacturer the provisions defined in Article 15(5) of this Regulation are applied, the fuel consumption mapping cycle shall be performed additionally for that specific engine.

The engine fuel map shall be measured in a series of steady state engine operation points, as defined according to paragraph 4.3.5.2. The metrics of this map are the fuel consumption in g/h depending on engine speed in min-1 and engine torque in Nm.

  1. 4.3.5.1Handling of interruptions during the FCMC
  2. 4.3.5.2Grid of target setpoints
  3. 4.3.5.3Measurement signals and data recording
  4. 4.3.5.4Preconditioning of the engine system
  5. 4.3.5.5Test sequence
  6. 4.3.5.6Data evaluation for emission monitoring
  7. 4.3.5.7Validity of data