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Measurement of vehicle exhaust gas pollutant emissions according to real driving emissions testing procedure

An overview of the present state in the field of measurement and homologation of passenger cars, light commercial vehicles and trucks with regard to exhaust gas pollutant emissions is presented. The issue of non-compliance with the amount of harmful emissions in everyday use conditions has been elaborated, resulting in the need for introducing additional homologation procedures to measure their amount in the form of the new real driving emissions (RDE) testing procedure. The Power Binning Testing Method was described and the measurement on the vehicle was carried out using this method, which included adaptation, manufacturing and installation of measuring equipment. On board measurement of unit emission of CO2, NOx and CO were conducted, recorded and calculated for passenger car, euro 5 compliant. Based on the analysis of the obtained results, conclusions on the justification of the method used as well as the verification of emissions in realistic conditions were made. The biggest drawbacks as well as the proposed solutions are explained for some of them. Measured carbon monoxide emissions are within permitted limits, CO2 emissions and fuel consumption are 13.4% more than factory declared, while NOx emissions exceed 3.5 times the permissible emissions.

vehicle homologation ; exhaust gas emissions ; real driving emissions (RDE) testing procedure ; Power Binning Testing Method ;

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