Worldwide harmonized Light vehicles Test Procedures (WLTP)
Overview
Background & policy context:
Although major improvements have been made in the past two decades, air quality levels in cities still are of major concern to public health.
To achieve a further reduction in citizens' exposure to air pollutants, lowering the exhaust emissions from road vehicles is required. In 2013, important works of the phase 1a of the worldwide harmonized driving cycle (WLTP) were carried out. In future, air conditioning systems and other energy consuming features are planned to be implemented into the driving cycle. Doing so, a more realistic test result is expected.
Objectives:
Within this project, a scientific assistance of the European and International works at the WLTP phase 1b and phase 2 is provided. Therefore, suitable concepts for upcoming problems have to be developed, applied in own investigations and proofed about their practicality.
Furthermore, existing testing methods for emissions of heavy vehicles and busses are going to be applied on vehicles of the emission level Euro VI.
Current test protocols concentrate on nitrogen oxides (NOx), carbon monoxide (CO) ,volatile organic compounds (VOC) and particle mater (PM). To extend this spectrum, in phases 1b 2 of the project other pollutants such as aldehydes are explored.
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