NEDCtesztek

NEDCtesztek is a Hungarian term that translates to "NEDC tests" in English. It refers to the New European Driving Cycle, a standardized laboratory test procedure used to measure the fuel consumption and CO2 emissions of new passenger cars. The NEDC was adopted in Europe in 1970 and has undergone several revisions over the years to better reflect real-world driving conditions, although it has also faced criticism for not being representative enough.

The NEDC test consists of a series of standardized driving phases, including urban, extra-urban, and combined cycles. Each phase involves accelerating, decelerating, and cruising at specific speeds and durations. The test is conducted in a controlled laboratory environment using a dynamometer, which simulates road resistance. Throughout the test, fuel consumption and emissions are measured and recorded.

The results of the NEDC tests are used for regulatory purposes, such as setting emission standards and providing consumers with information about a car's efficiency. However, many studies and real-world driving data have indicated a significant gap between NEDC figures and actual fuel economy achieved by drivers. This discrepancy led to the development and eventual replacement of the NEDC with the Worldwide Harmonized Light Vehicles Test Procedure (WLTP) in 2017, which aims to provide more accurate and realistic fuel consumption and emissions data.