Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:110:p53
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 110 (pt 53/59)
Character Range: 753469–756676

the reagent characteristics declared by the manufacturer and recorded in Annex II to this Directive is present on the vehicle.

              6.5.4.6.        If the fluid in the reagent tank does not correspond to the minimum requirements declared by the manufacturer as recorded in Annex II to this Directive the additional requirements of section 6.5.4.12 shall apply.

              6.5.4.7.        Engine systems shall include a means for determining reagent consumption and providing off-board access to consumption information.

              6.5.4.8.        Average reagent consumption and average demanded reagent consumption by the engine system either over the previous complete 48 hour period of engine operation or the period needed for a demanded reagent consumption of at least 15 litres, whichever is longer, shall be available via the serial port of the standard diagnostic connector as referred to in section 6.8.3 of Annex IV to Directive 2005/78/EC.

              6.5.4.9.        In order to monitor reagent consumption, at least the following parameters within the engine shall be monitored:

                -           level of reagent in on-vehicle storage tank,

                -           flow of reagent or injection of reagent as close as technically possible to the point of injection into an exhaust aftertreatment system.

              6.5.4.10.     Any deviation more than 50 % in average reagent consumption and average demanded reagent consumption by the engine system over the period defined in section 6.5.4.8 shall result in application of the measures laid down in section 6.5.4.12.

              6.5.4.11.     In the case of interruption in reagent dosing activity the measures laid down in section 6.5.4.12 shall apply. This is not required where such interruption is demanded by the engine ECU because engine operating conditions are such that the engine's emission performance does not require reagent dosing, provided that the manufacturer has clearly informed the approval authority when such operating conditions apply.

              6.5.4.12.     Any failure detected with respect to sections 6.5.4.6, 6.5.4.10 or 6.5.4.11 shall trigger the same conse- quences in the same order as those referred to in sections 6.5.3.2, 6.5.3.3 or 6.5.3.4.

              6.5.5.            Measures to discourage tampering of exhaust aftertreatment systems

              6.5.5.1.        Any engine system covered by this section shall include a torque limiter that will alert the driver that the   engine system is operating incorrectly or the vehicle is being operated in an incorrect manner and thereby encourage the prompt rectification of any fault(s).

              6.5.5.2.        The torque limiter shall be activated when the vehicle becomes stationary for the first time after the conditions of either sections 6.5.3.4, 6.5.4.3, 6.5.4.6, 6.5.4.10 or 6.5.4.11 have occurred.

              6.5.5.3.        Where the torque limiter comes into effect, the engine torque shall not, in any case, exceed a constant value  of:

                -           60 % of the engine maximum torque for vehicles of category N3 > 16 tonnes, M1 > 7,5 tonnes, M3/III and M3/B > 7,5