Duration:

Compared with the NEDC, the WLTP cycle lasts ten minutes longer and includes only 13 percent standing time. The total length of the cycle is 23.5 kilometers - i.e. more than twice as long as the eleven kilometers in the NEDC. The advantage is that the driving behavior of the end consumer can be better represented and the calculated values are more realistic.

Dynamics:

The maximum acceleration rises from 1 m/s2 to 1.6-1.7 m/s2; this means more braking, which once again more accurately reflects real driving behavior.

Speed:

The WLTP includes higher speeds of up to 131 km/h. The average speed is 46.5 km/h - around 13 km/h faster on average than in the NEDC. This means that the WLTP subjects the vehicles to higher variations in speed. The relationship is clear: Higher speeds and more dynamic driving profiles are closer to the actual driving behavior of customers and can lead to higher, and therefore more realistic, fuel consumption.

Optional equipment:

In contrast to the NEDC, which included only the rolling resistance, i.e. wheels and tires, as an additional component, the WLTP also considers optional equipment with an impact on

  • vehicle aerodynamics,
  • rolling resistance,
  • vehicle mass oder
  • power consumption. The inclusion of optional equipment makes WLTP consumption figures higher, but also more realistic, in the majority of cases. In the first phase of implementation of the WLTP, however, the air conditioning system will be left out of consideration on the grounds of reproducibility (great differences in the principle of operation depending on the manufacturer). Work is currently underway on a legal measurement procedure for the next phase.

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