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Commission Regulation (EU) 2017/2400Show full title
Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance)
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- Revised 01/09/20203.68 MB
- Revised 01/03/20193.55 MB
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Changes over time for: Appendix 3
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Appendix 3 Engine CO2-Family
1.Parameters defining the engine CO2-familyU.K.
The engine CO2-family, as determined by the manufacturer, shall comply with the membership criteria defined in accordance with paragraph 5.2.3. of Annex 4 to UN/ECE Regulation 49 Rev.06. An engine CO2-family may consist of only one engine.
In addition to those membership criteria, the engine CO2-family, as determined by the manufacturer, shall comply with the membership criteria listed in paragraph 1.1 to 1.9 of this Appendix.
In addition to the parameters listed below, the manufacturer may introduce additional criteria allowing the definition of families of more restricted size. These parameters are not necessarily parameters that have an influence on the level of fuel consumption.
1.1.Combustion relevant geometric dataU.K.
1.1.1.Displacement per cylinderU.K.
1.1.2.Number of cylindersU.K.
1.1.3.Bore and stroke dataU.K.
1.1.4.Combustion chamber geometry and compression ratioU.K.
1.1.5.Valve diameters and port geometryU.K.
1.1.6.Fuel injectors (design and position)U.K.
1.1.7.Cylinder head designU.K.
1.1.8.Piston and piston ring designU.K.
1.2.Air management relevant componentsU.K.
1.2.1.Pressure charging equipment type (waste gate, VTG, 2-stage, other) and thermodynamic characteristicsU.K.
1.2.2.Charge air cooling conceptU.K.
1.2.3.Valve timing concept (fixed, partly flexible, flexible)U.K.
1.2.4.EGR concept (uncooled/cooled, high/low pressure, EGR-control)U.K.
1.3.Injection systemU.K.
1.4.Auxiliary/equipment propulsion concept (mechanically, electrically, other)U.K.
1.5.Waste heat recovery (yes/no; concept and system)U.K.
1.6.Aftertreatment systemU.K.
1.6.1.Reagent dosing system characteristics (reagent and dosing concept)U.K.
1.6.2.Catalyst and DPF (arrangement, material and coating)U.K.
1.6.3.HC dosing system characteristics (design and dosing concept)U.K.
1.7.Full load curveU.K.
1.7.1.The torque values at each engine speed of the full load curve of the CO2-parent engine determined in accordance with paragraph 4.3.1. shall be equal or higher than for all other engine within the same CO2-family at the same engine speed over the whole engine speed range recorded.U.K.
1.7.2.The torque values at each engine speed of the full load curve of the engine with the lowest power rating of all engines within the engine CO2-family determined in accordance with paragraph 4.3.1. shall be equal or lower than for all other engines within the same CO2-family at the same engine speed over the whole engine speed range recorded.U.K.
1.8.Characteristic engine test speedsU.K.
1.8.1.The engine idle speed, nidle, of the CO2-parent engine as declared by the manufacturer at the application for certification in the information document in accordance with Appendix 2 to this Annex shall be equal or lower than for all other engines within the same CO2-family.U.K.
1.8.2.The engine speed n95h of all other engines than the CO2-parent engine within the same CO2-family, determined from the engine full load curve recorded in accordance with paragraph 4.3.1 by applying the definitions of characteristic engine speeds in accordance with paragraph 7.4.6. of Annex 4 to UN/ECE Regulation 49 Rev.06, shall not deviate from the engine speed n95h of the CO2-parent engine by more than ± 3 percent.U.K.
1.8.3.The engine speed n57 of all other engines than the CO2-parent engine within the same CO2-family, determined from the engine full load curve recorded in accordance with paragraph 4.3.1 by applying the definitions in accordance with paragraph 4.3.5.2.1, shall not deviate from the engine speed n57 of the CO2-parent engine by more than ± 3 percent.U.K.
1.9.Minimum number of points in the fuel consumption mapU.K.
1.9.1.All engines within the same CO2-family shall have a minimum number of 54 mapping points of the fuel consumption map located below their respective engine full load curve determined in accordance with paragraph 4.3.1.U.K.
2.Choice of the CO2-parent engineU.K.
The CO2-parent engine of the engine CO2-family shall be selected in accordance with the following criteria:
2.1.Highest power rating of all engines within the engine CO2-family.U.K.
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