The New European Driving Cycle (NEDC) was replaced in September 2018 with WLTP (World harmonized Light Vehicle Testing Procedure). WLTP is a completely overhauled set of rules that will govern the emission testing. Only cars passing from these new standards will be allowed for sale all over Europe. This new process has a profound impact on the European markets as well as other regions that import cars from Europe. This standard tests the cars for longer distances and shorter idle times. Also, check out our site for cheap car leasing in The UK.
NEDC:
This standard applies to all the passenger vehicles and other small commercial vehicles. This standard was introduced in the EU in 1992 to test for values for fuel consumption and carbon emissions. There are a lot of indicators and factors which were taken into account for testing these values.
WLTP:
The Worldwide Harmonized Light-Duty Vehicles Test Procedure has been the worldwide standard since 2018 which tests the small vehicles and passenger vehicles for fuel consumption and emissions. According to the new standards, it aims to give a more realistic overview of much more accurate consumption values because of its more interactive, inclusive, and dynamic procedure.
Difference between the NEDC and WLTP
The new WLTP standard overhauls the parameters for determining fuel consumption and fuel emissions. This is how the two compares.
Transparency:
The new testing procedure will aim at the vehicle’s day to day usage and thus better assess the fuel consumption by having real-time results based on real-world performance.
This profiling is closer to the actual day to day usage rather than the NEDC which tested the vehicles based on an average mean value. The old procedure was similar to laboratory testing which only compares different vehicles based on theoretical values without reflecting on actual real-world usage. The WLTP gives a detailed and more defined prognosis of the consumptions that accurately reflects the vehicle’s true mileage.
Comparable testing results:
The WLTP standards give accurate and comparable results that can be used worldwide. The main reason to develop the WLTP is to standardize the procedure of determining the consumption and exhaust emissions worldwide. This should apply universally to every engine type like petrol, diesel, CNG as well as electrical engines. For qualifying under the WLTP vehicles of the same type must display the same results. Lab measurement is also essential for comparability and for that very reason a dynamometer is used.
Climate protection:
The new international climate targets have gotten stricter and the new testing standards have brought the methods in conformity with the results. The WLTP aims to help achieve the international climate targets as set by the international institution to reduce the burden on the environment caused by CO2 emissions. According to the new standards, reducing the CO2 emissions to a minimum level is of keen importance. WLTP standard enables compliance with the international CO2 limits.
Europe has reported having produced 4,72 billion tons of CO2 emissions alone. Therefore, the EU has decided to reduce these emissions by 20 percent by 2020. These goals can be realized by standardizing fuel consumption through WLTP.
