A driving cycle is a series of data points representing the speed of a vehicle versus time.
[5] On the contrary, the current Worldwide harmonized Light vehicles Test Procedure (WLTP) strives to mimic real world driving behavior.
[clarification needed] At the end of the 1960s, increased use of automobile vehicles led to the first regulations on limiting emissions.
To avoid this and to protect the common market, all member states adopts the same requirements, either in addition to or in place of their existing rules, in order to allow the EEC-type approval procedure, defined by Council Directive in 1970.
[11] In the 1980s, the old NEDC as European homologation lab-bench procedure was established to simulate urban driving condition of a passenger car.
[18][19] From 1 September 2019 all the light duty vehicles that are to be registered in the EU countries (but also in Switzerland, Norway, Iceland and Turkey) must comply with the WLTP standards, part of the Global regulations:[20] In the European Union, including UK, the WLTP replaces the NEDC.
[21][22] CATC are concluded from a research covering over 17 vehicle models, 2.5 million data inputs, 700 thousand car owners and 31 provinces in China.
Indian Drive Cycle with a European driver model does not give a fair comparison of the on road trials.
This is a technique for prediction of future driving cycles and patterns for different types of vehicle applications.
These cycles are used as an important input in designing and evaluating future power train systems and vehicle concepts.
As of today, obsolete drive cycles are used during the design phase and due to this the changes in traffic conditions and infrastructure which has occurred during the last decade are not taken into account.
Desirably, traffic simulation models are automatically generated and used to collect predicted drive cycles.