Document ID: chunk:federal_register_of_legislation:F2012C00283:reg:7:p35
Version: federal_register_of_legislation:F2012C00283
Segment Type: reg
Provision Reference: reg 7 (pt 35/51)
Character Range: 602962–606152

For more details of the schematic process see Figure 8/3

Figure 8/3
Parameters measured during emissions test during and between cycles where regeneration occurs (schematic example)

              For application of a simple and realistic case, the following description gives a detailed explanation of the schematic example shown in Figure 8/3 above:
              1. "DPF": regenerative, equidistant events, similar emissions (±15 per cent) from event to event
                Dk = Dk+1  = D1

                dk  = dk+1   = d1

                Mrik – Msik = Mrik+1 – Msik+1

                nk  =  n

              2. "DeNOx": the desulphurisation (SO2 removal) event is initiated before an influence of sulphur on emissions is detectable (±15 per cent of measured emissions) and in this example for exothermic reason together with the last DPF regeneration event performed.
               M'sik,j=1 = constant  Msik = Msik+1 = Msi2
                   Mrik = Mrik+1 = Mri2
               For SO2 removal event: Mri2, Msi2, d2, D2, n2 = 1
              3. Complete system (DPF + DeNOx):

               The calculation of the factor (Ki) for multiple periodic regenerating systems is only possible after a certain number of regeneration phases for each system. After performing the complete procedure (A to B, see Figure 8/2), the original starting conditions A should be reached again.
              3.4.1.  Extension of approval for a multiple periodic regeneration system
              3.4.1.1. If the technical parameter(s) and or the regeneration strategy of a multiple regeneration system for all events within this combined system are changed, the complete procedure including all regenerative devices should be performed by measurements to update the multiple ki – factor.
              3.4.1.2. If a single device of the multiple regeneration system changed only in strategy parameters (i.e. such as "D" and/or "d" for DPF) and the manufacturer could present technical feasible data and information to the Technical Service that:
               (a) There is no detectable interaction to the other device(s) of the system;  and
               (b) The important parameters (i.e. construction, working principle,  volume, location etc.) are identical;
               The necessary update procedure for ki could be simplified.
               As agreed between the manufacturer and the Technical Service in such a case only a single event of sampling/storage and regeneration should be performed and the test results ("Msi", "Mri") in combination with the changed parameters ("D" and/or "d") could be introduced in the relevant formula(s) to update the multiple ki - factor in a mathematical way under substitution of the existing basis ki - factor formula(s)."
Annex 14
  Emissions test procedure for hybrid electric vehicles (HEV)
              1. Introduction
              1.1. This annex defines the specific provisions regarding type-approval of a hybrid electric vehicle (HEV) as defined in paragraph 2.21.2. of this Regulation.
              1.2. As a general principle, for the tests of Type I, II, III, IV, V, VI and OBD, hybrid electric vehicles shall be