EURO 6 legislation defines procedures, tests and requirements for the approval of cars from 2014 referring in particular to the following elements:
- Exhaust emissions, including test cycles, emissions at low temperatures, idling emissions, smoke opacity, correct functioning and regeneration of after-treatment systems;
- emissions through evaporation and emissions from the engine crankcase;
- OBD (On-Board-Diagnosis) systems and performance of pollution control devices;
- Durability of pollution control devices, replacement of pollution control devices, in-service compliance, compliance of production and technical controls.
While petrol engines seem to be more easily adaptable to requirements compliance of EURO 6 legislation, things are more complex in relation to diesel engine. A great effort is needed in developing and assembling new components in the whole engine system.
The project was aimed at identifying modelling procedures of fluid-dynamic behaviour of the various engine components and at optimizing management and control procedures of the various engine subsystems.
The final objective is to identify those technologies that can enable the achievement of emission targets set out in legislation in time for industrialization and production of those engines that will be in the market in 2014 (at least two years before).