Commission Regulation (EU) No 582/2011Show full title

8. REAGENT CONSUMPTION MONITORING U.K.

8.1. The vehicle shall include a means of determining reagent consumption and providing off-board access to consumption information. U.K.

8.2. Reagent consumption and dosing activity counters U.K.

8.2.1. A specific counter shall be attributed to the reagent consumption (the ‘reagent consumption counter’) and another to the dosing activity (the ‘dosing activity counter’). These counters shall count the number of engine operating hours which occur with an incorrect reagent consumption and, respectively, an interruption of the reagent dosing activity. U.K.

8.2.2. Details of the reagent consumption counter and dosing counter activation and deactivation criteria and mechanisms are described in Appendix 2 to this Annex. U.K.

8.2.3. The reagent consumption counter and the dosing counter information shall be made available in a standardised manner according to the provisions of Appendix 5 to this Annex. U.K.

8.3. Monitoring conditions U.K.

8.3.1. The maximum detection period for insufficient reagent consumption is 48 hours or the period equivalent to a demanded reagent consumption of at least 15 litres, whichever is longer. U.K.

8.3.2. In order to monitor reagent consumption, at least one of the following parameters within the vehicle or engine shall be monitored: U.K.

(a)

the level of reagent in the on-vehicle storage tank;

(b)

the flow of reagent or quantity of reagent injected at a position as close as technically possible to the point of injection into an exhaust after-treatment system.

8.4. Activation of the driver warning system U.K.

8.4.1. The driver warning system described in Section 4 shall be activated if a deviation of more than 20 % between the average reagent consumption and the average demanded reagent consumption by the engine system over a period to be defined by the manufacturer, which shall not be longer than the maximum period defined in Section 8.3.1, is detected. When the warning system includes a message display system, it shall display a message indicating the reason for the warning (for example, ‘urea dosing malfunction’, ‘AdBlue dosing malfunction’, or ‘reagent dosing malfunction’). U.K.

8.4.1.1. Until the end of the phase-in period specified in Article 4(7) the driver warning system described in Section 4 shall be activated if a deviation of more than 50 % between the average reagent consumption and the average demanded reagent consumption by the engine system over the period to be defined by the manufacturer, which shall not be longer than the maximum period defined in Section 8.3.1 is detected. U.K.

8.4.2. The driver warning system described in Section 4 shall be activated in the case of interruption in reagent dosing. When the warning system includes a message display system, it shall display a message indicating an appropriate warning. This activation shall not be required where the interruption is demanded by the engine ECU because the vehicle operating conditions are such that the vehicle’s emission performance does not require reagent dosing. U.K.

8.5. Activation of the driver inducement system U.K.

[F1 8.5.1. The low-level inducement system described in Section 5.3 shall be enabled, and subsequently activated in accordance with the requirements of that section, if an error in the reagent consumption or an interruption in reagent dosing is not rectified within 10 engine operating hours after the activation of the driver warning system specified in Sections 8.4.1 and 8.4.2. U.K.

Textual Amendments

F1 Substituted by Commission Regulation (EU) No 64/2012 of 23 January 2012 amending Regulation (EU) No 582/2011 implementing and amending Regulation (EC) No 595/2009 of the European Parliament and of the Council with respect to emissions from heavy duty vehicles (Euro VI) (Text with EEA relevance).

8.5.2. The severe inducement system described in Section 5.4 shall be enabled, and subsequently activated in accordance with the requirements of that section, if an error in the reagent consumption or an interruption in reagent dosing is not rectified within 20 engine operating hours after the activation of the driver warning system in Sections 8.4.1 and 8.4.2.] U.K.

8.5.3. The number of hours prior to activation of the inducement systems shall be reduced in case of a repetitive occurrence of the malfunction in accordance with the mechanism described in Appendix 2. U.K.