The electrification of engines of cars and heavy goods vehicles will result in a significant reduction of the noise of the power train and in a different acoustic response of the vehicles.
This reduction will be beneficial for the exterior noise of vehicles, but will have adverse consequences on the indoor soundscape. Secondary noise sources (energy recovery systems, pumps, compressors, etc.) will then become predominant, burdening comfort and reducing driving safety.
The main objective of the TESSA project is the control of vibration noise of original equipment and accessories in road transport vehicles (cars, trucks) for the introduction of low noise electric powertrains made of composite materials.
The means used to achieve this goal are:
- Implementation of standardized and simplified methods for characterizing vibration sources by taking into account measurement uncertainties and dispersion;
- Implementation of protocol for exchange and sharing digital models for the design of the cheapest components and borne noise generator equipment.