An investigation of compared emission values by NEDC and WLTC methods of a diesel engine

Most of the vehicles used in the world have traditional internal combustion engines and use fossil fuels. Exhaust emissions that contain harmful gases from these engines spread to the environment and cause environmental pollution. The problem of polluting the environment is the problem of exhaust gas emissions resulting from the operation of motor vehicles at the international level. In order to solve this problem, emission limits have been applied since the beginning of 90s according to NEDC (New European Driving Cycle) test for passenger cars. In addition, emission limits have been tightened over the years. After the revised version manipulation of Volkswagen in America, the issue of a more realistic test procedure, which would represent real-life conditions, was essential rather than the NEDC cycle. For this reason, the European Commission set up a commission for the evaluation of the existing NEDC test procedure. The Commission has developed the WLTC (World-wide harmonized Light duty Test Cycle) test method which will better represent the real life. As of September 2018, the emission limits of passenger cars in European Union Countries are evaluated according to the WLTC test procedure. Inthisstudy, the NEDC and WLTC test methodswill be compared, in whichways WLTC willbetterrepresentthereal life drivingconditions. Inthecomparison of NEDC and WLTC test procedures, a dieselpassengervehiclewill be testedcomparatively in bothcycletests. Accordingto NEDC and WLTC test results, theemissionvalues andfuelconsumptionwill be compared.