"normal" Ambient temperature "normal" Altitude - PowerPoint PPT Presentation

OCE Informal Document No. 23a Ninth Plenary Meeting of the Working Group On Off-Cycle Emissions 11&12 January 2005 Palais des Nations, Geneva "normal" Ambient temperature "normal" Altitude in Europe ACEA proposal Submitted to the European Commission on 11 November 2002 File name 1 WWH-oce 12 January 2005

EU Normal operating conditions background • Directive 2001/27/EC contains provisions on test conditions under which the engine must meet the emissions standards • These provisions have been subject to review by the Commission. • The temperature / altitude distribution in the EU has been analysed through a collaboration between ACEA and the Aristoteles University in Tessalonniki to propose normal operating conditions. File name 2 WWH-oce 12 January 2005

EU Normal operating conditions selected criterion • Normal Operating Conditions consist of – minimum ambient temperature – maximum ambient temperature – maximum altitude. • The selection criterion for applying normal operating conditions was selected so that more than 90% of the vehicle kilometres within the EU would be driven within the 3 given conditions File name 3 WWH-oce 12 January 2005

EU Normal operating conditions source of information • All the EU 15 countries have been divided into administrative regions according to the Nomenclature of Territorial Units for Statistics (NUTS) In order to take into account the differences between North and South, the Scandinavian countries and Spain have been further divided. • Altitude : http://www.calle.com/world/index.html. • Temperature: http://www.weatherbase.com • Annual vehicle kilometres driven by each HDV class are taken from TRENDS for reference year 1995 File name 4 WWH-oce 12 January 2005

EU Normal operating conditions distribution analysis EU veh.km / temperature / altitude distribution 30,0% 25,0% v e h . k m f re q u e n c y 20,0% 15,0% 10,0% < 5,0% 1 0 0 m 4 0 0,0% 0 - 5 > 0 0 a l t i t ude 8 0 m 0 m File name t e mpe r a t ur e chart developped on data originating f rom LAT (Greece) 5 WWH-oce 12 January 2005

EU Normal operating conditions cumulative frequencies EU day and night 100% 90% cumulative frequencies 80% 70% EU 60% 50% EU day 40% EU night 30% 20% 10% 0% -20 -10 0 10 20 30 40 temperatures File name 6 WWH-oce 12 January 2005