Division 4.1 Worst case approach vehicle cool downF1

On request by the manufacturer and with approval by the approval authority, the Type 1 Test procedure for cool down may be applied instead of provisions of paragraph 3.6 of this Sub-Annex 6a. For that purpose:

(a)
The provisions of paragraph 2.7.2. of Sub-Annex 6 shall apply with the additional requirement of a minimum soak time of 9 hours.
(b)
The engine temperature shall be within ± 2 °C of the set point T_reg before the start of the ATCT test. That temperature shall be included in all relevant test sheets. In this case, the provision for cool down described in paragraph 3.9. of this Sub-Annex 6a and the criteria on engine compartment insulation can be skipped for all vehicles in the family.

This alternative is not allowed if the vehicle is equipped with an active heat storage device.

The application of that approach shall be included in all relevant test reports.

Annotations

Textual amendments

F1: Substituted by Commission Regulation (EU) 2018/1832 of 5 November 2018 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) 2017/1151 for the purpose of improving the emission type approval tests and procedures for light passenger and commercial vehicles, including those for in-service conformity and real-driving emissions and introducing devices for monitoring the consumption of fuel and electric energy (Text with EEA relevance).