Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:5:p14
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 5 (pt 14/36)
Character Range: 458582–461644

overall design of an engine system or vehicle for the purposes of controlling exhaust emissions that includes one BECS and one set of AECS;

         "emission control system" means the exhaust aftertreatment system, the electronic management controller(s) of the engine system and any emission-related component of the engine system in the exhaust which supplies an input to or receives an output from this(these) controller(s), and when applicable the communication interface (hardware and messages) between the engine system electronic control unit(s) (EECU) and any other power train or vehicle control unit with respect to emissions management;

         "engine-aftertreatment system family" means, for testing over a service accumulation schedule to establish deterioration factors accord- ing to Annex II to Commission Directive 2005/78/EC implementing Directive 2005/55/EC of the European Parliament and of the Coun- cil on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive igni- tion engines fuelled with natural gas or liquefied petroleum gas for use in vehicles and amending Annexes I, II, III, IV and VI thereto (**) and for checking the conformity of in-service vehicles/engines according to Annex III to Directive 2005/78/EC, a manufacturer's group- ing of engines that comply with the definition of engine family but which are further grouped into engines utilising a similar exhaust after-treatment system;

         "engine system" means the engine, the emission control system and the communication interface (hardware and messages) between the engine system electronic control unit(s) (EECU) and any other powertrain or vehicle control unit;

         "engine family" means a manufacturers grouping of engine systems which, through their design as defined in Annex II, Appendix 2 to this Directive, have similar exhaust emission characteristics; all members of the family must comply with the applicable emission limit values;

         "engine operating speed range" means the engine speed range, most frequently used during engine field operation, which lies between the low and high speeds, as set out in Annex III to this Directive;

         "engine speeds A, B and C" means the test speeds within the engine operating speed range to be used for the ESC test and the ELR test, as set out in Annex III, Appendix 1 to this Directive;

         "engine setting" means a specific engine/vehicle configuration that includes the emission control strategy (ECS), one single engine per- formance rating (the type-approved full-load curve) and, if used, one set of torque limiters;

         "engine type" means a category of engines which do not differ in such essential respects as engine characteristics as defined in Annex II to this Directive;

         "exhaust aftertreatment system" means a catalyst (oxidation or 3-way), particulate