WLTP – On the increased importance of aerodynamics and impact on development procedures

Abstract

For some years a new test procedure has been developed among the UN for the determination of pollutant and CO2 emissions and fuel consumption, which should represent the average customer behaviour. Beside the EU various other countries are involved (e.g., India, Japan). The test procedure WLTP and the underlying driving cycle WLTC was developed with the help of worldwide accumulated driving data and covers driving situations from city up to highway traffic.