Together tech enthusiasts, crafters, educators across the globe. A celebration of the Maker Movement, a family-friendly showcase of invention and creativity that gathers.The premier publication of maker projects, skill-building tutorials, in-depth reviews, and inspirational stories,.The new WLTP procedure will provide a more realistic criterion for comparing the fuel consumption and CO2 emission values of different vehicle models as it has been designed to better reflect real driving behavior and take into account the specific technical characteristics of the individual model and version, including optional equipment. For this reason, only a standardized laboratory test allows to obtain values with which it is possible to compare vehicles and different models in a fair way. air conditioning), traffic and weather conditions that are characteristic of each geographical area and each driver. Therefore, there will still be a difference between emissions and consumption measured in the laboratory and those resulting from the use of the vehicle in the real world, and the extent of this difference will depend on factors such as driving behavior, the use of on-board systems (e. The new WLTP test procedure is more representative of current driving conditions than the NEDC procedure, but it cannot take into account all possible cases including the effect of the driving style that is specific to each individual driver. ROAD CONSUMPTION AND EMISSIONS OF PASSENGER CARS Used vehicles will not be affected by this step and will maintain their certified NEDC values. From 2021 onwards, WLTP data will be the only consumption/ CO2 emissions values for all cars. In addition, some countries may continue to use the NEDC data for fiscal purposes. Indeed, NEDC values will be used to assess the average CO2 emissions of cars registered in the EU throughout 2020. Until the end of 2020, both fuel consumption and CO2 emission values in WLTP and NEDC will be present in the vehicle documents. The WLTP applies to new passenger car models from 1 September 2017, to all passenger cars registered from 1 September 2018 and is mandatory for all EU Member States. The WLTP procedure will gradually replace the NEDC procedure. The procedure also takes into account all vehicle’s optional contents that affect aerodynamics, rolling resistance and vehicle mass, resulting in a CO2 value that reflects the characteristics of the single vehicle. These parts of the cycle simulate urban and suburban driving and driving on extra-urban roads and motorways. The WLTP test consists of four parts depending on the maximum speed: Low (up to 56.5 km/h), Medium (up to 76.6 km/h), High (up to 97.4 km/h), Extra-high (up to 131.3 km/h). The distance travelled doubles from 11 to 23.25 kilometers. The maximum speed increases from 120 to 131.3 km/ h, the average speed is 46.5 km/h and the total cycle time is 30 minutes, 10 minutes more than the previous NEDC. The new WLTP procedure is characterized by a more dynamic driving profile with more significant acceleration. The new protocol aims to provide customers with more realistic data, better reflecting the daily use of the vehicle. WLTP procedure: WLTP uses new Worldwide harmonised Light-duty vehicle Test Cycles (WLTC) to measure fuel consumption, CO2 and pollutant emissions from passenger cars and light commercial vehicles. The average speed of the NEDC is only 34 km/h, accelerations are low and the maximum speed is just 120 km/h. However, the composition of this cycle is no longer consistent with current driving styles and distances travelled on different types of roads. In 1992 it was also considered to have an extra-urban phase and since 1997 it has been used for measuring consumption and CO2 emissions. The first European driving cycle came into force in 1970 and referred to an urban route. NEDC (New European Driving Cycle): it has been the European driving cycle used so far for the measurement of fuel consumption and emissions from passenger cars and light commercial vehicles. On 1 September 2017, the new Worldwide harmonised Light-duty vehicle Test Procedure (WLTP) came into force in Europe and will gradually replace the New European Driving Cycle (NEDC) protocol. This is important because only a laboratory test, which follows a standardized and repeatable procedure, allows consumers to compare different car models. In this way, the tests are reproducible and the results comparable. The tests to assess fuel consumption, CO2 and pollutant emissions are carried out in the laboratory and are based on specific driving cycles.
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