Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p28
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 28/150)
Character Range: 792458–795577

sequence.

              2.2.1.2. The manufacturer shall provide the description of such strategies in the documentation considered in paragraphs 3.1.3. (a) and 3.1.3. (b) of this Regulation.

              2.2.1.3. In the case of a hybrid vehicle, the operating sequence shall start at the time of the engine start or at the time when the vehicle starts moving, whichever occurs first.

              2.2.2. Driving cycle

              2.2.2.1. For vehicles that employ engine shut-off strategies that are commanded by the engine control system (for example hybrid bus with engine shut-off at idle) and that are followed by an engine cranking, the (engine shut-off – engine cranking) sequence shall be considered as part of the existing driving cycle.

              2.2.2.2. The manufacturer shall provide the description of such strategies in the documentation considered in paragraphs 3.1.3. (a) and 3.1.3. (b) of this Regulation.

              2.2.2.3. In the case of a hybrid vehicle, the driving cycle shall start at the time of the engine start or at the time when the vehicle starts moving, whichever occurs first.

              2.3. Additional provisions concerning monitoring requirements.

              2.3.1.  Malfunctioning injectors

              As an alternative to the monitor specified in line (d) of the table in item 7 of Appendix 3 to Annex 9B to this Regulation, the manufacturer may opt for compliance with the provisions specified in paragraphs 2.3.1.1. to 2.3.1.2.1. of this annex.
              2.3.1.1.  The manufacturer shall submit to the Type Approval Authority an analysis of the long-term effects on the emission control system of malfunctioning fuel injectors (for example clogged or soiled injectors) even if the OBD Threshold Limits (OTLs) are not exceeded as a consequence of these malfunctions.

              2.3.1.2.  After the period set out in paragraph 4.10.7. of this Regulation the manufacturer shall submit to the Type Approval Authority a plan of the monitoring techniques he intends to use in addition to those required by Appendix 3 to Annex 9B in order to diagnose the effects considered in paragraph 2.3.1.1.

              2.3.1.2.1.  After approval of this plan by the authority, the manufacturer shall implement those techniques in the OBD system in order to get a type approval.

              2.3.2. Monitoring requirements concerning particulate after treatment devices

              2.3.2.1.  The performance of the particulate after treatment device including the filtration and continuous regeneration processes shall be monitored against the OBD threshold limit specified in Table 1.

              2.3.2.2. In the case of a wall flow diesel particulate filter (DPF), until the date specified in paragraph 13.2.3. of this Regulation for new type approvals and paragraph 13.3.3. for new registrations, the manufacturer may choose to apply the performance monitoring requirements set out in Appendix 8 to Annex 9B instead of the requirements of paragraph 2.3.2.1., if he can demonstrate with technical documentation that in case of deterioration there is