Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:5:p13
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 5 (pt 13/36)
Character Range: 455693–458859

regeneration process will not require a special test procedure;

         "control area" means the area between the engine speeds A and C and between 25 to 100 per cent load;

         "declared maximum power (Pmax)" means the maximum power in EC kW (net power) as declared by the manufacturer in his application for type-approval;

         "defeat strategy" means:

                -          an AECS that reduces the effectiveness of the emission control relative to the BECS under conditions that may reasonably be expected to be encountered in normal vehicle operation and use,

           or

                -          a BECS that discriminates between operation on a standardised type-approval test and other operations and provides a lesser level of emission control under conditions not substantially included in the applicable type-approval test procedures,

         "deNOx system" means an exhaust aftertreatment system designed to reduce emissions of oxides of nitrogen (NOx) (e.g. there are pres- ently passive and active lean NOx catalysts, NOx adsorbers and Selective Catalytic Reduction (SCR) systems);

         "delay time" means the time between the change of the component to be measured at the reference point and a system response of 10 % of the final reading (t10). For the gaseous components, this is basically the transport time of the measured component from the sampling probe to the detector. For the delay time, the sampling probe is defined as the reference point;

         "diesel engine" means an engine which works on the compression-ignition principle;

         "ELR test" means a test cycle consisting of a sequence of load steps at constant engine speeds to be applied in accordance with section 6.2 of this Annex;

         "ESC test" means a test cycle consisting of 13 steady state modes to be applied in accordance with section 6.2 of this Annex;

         "ETC test" means a test cycle consisting of 1 800 second-by-second transient modes to be applied in accordance with section 6.2 of this Annex;

         "element of design" means in respect of a vehicle or engine,

                -          any control system, including computer software, electronic control systems and computer logic,

                -          any control system calibrations,

                -          the result of systems interaction,

           or

                -          any hardware items,

         "emissions-related defect" means a deficiency or deviation from normal production tolerances in design, materials or workmanship in a device, system or assembly that affects any parameter, specification or component belonging to the emission control system. A missing component may be considered to be an "emissions-related defect";

         "emission control strategy (ECS)" means an element or set of elements of design that is incorporated into the 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