3.PERFORMANCE REQUIREMENTS
3.1.The performance requirements shall be those set out in Section 5 of Annex 9B to UN/ECE Regulation No 49.
3.2. OBD threshold limits
3.2.1.The OBD threshold limits (hereinafter ‘OTLs’) applicable to the OBD system are those specified in the rows ‘general requirements’ of Table 1 for compression-ignition engines and of Table 2 for gas-fuelled engines and positive-ignition engines fitted to vehicles belonging to category M3, to N2 vehicles having a maximum permissible mass exceeding 7,5 tonnes, and to N3 vehicles.
3.2.2.Until the end of the phase-in period set out in Article 4(7), the OBD threshold limits specified in rows ‘phase-in period’ of Table 1 for compression-ignition engines and of Table 2 for gas fuelled engines and positive-ignition engines fitted to vehicles belonging to category M3, to N2 vehicles having a maximum permissible mass exceeding 7,5 tonnes and, to N3 vehicles shall apply.
Table 1
OTLs (Compression-ignition engines)
Limit in mg/kWh | ||
---|---|---|
NOx | PM Mass | |
Phase-in period | 1 500 | 25 |
General requirements | 1 200 | 25 |
Table 2
OTLs (all gas fuelled engines and positive-ignition engines fitted to vehicles belonging to category M3, to N2 vehicles having a maximum permissible mass exceeding 7,5 tonnes, and to N3 vehicles)
a The OTL for CO shall be set at a later stage. | ||
Limit in mg/kWh | ||
---|---|---|
NOx | COa | |
phase-in period | 1 500 | |
general requirements | 1 200 |