The conditions for the acceptability of electric vehicles by civil society require an increase in the range and a rapid charge of these vehicles. To increase the range, it is necessary to reduce the consumption of heating and air conditioning, which requires a heat pump and a more powerful ventilation system. Reducing the charging time requires a very high thermal power to be dissipated on the vehicle and the charging station, which again requires more powerful ventilation systems. In both cases, there is a significant increase in noise, especially in the city and at night. The project therefore proposes to design acoustically optimised electric cooling modules that meet current noise standards in an urban environment by combining active and passive methods of controlling the noise of the ventilation system. The methodology will also be innovative and will be based on an original combination of direct aero-acoustic simulations of the complete modules, whose dimensions will be parameterised and adjustable under the computer-aided design software. To efficiently calculate the noise of such complex geometry systems, the Boltzmann method on Cartesian grids will be used. This method will allow rapid iteration on the shape parameters of the module and the fan blades and thus to test various passive noise reduction techniques to arrive at a final prototype module that is significantly quieter than the initial module. Several aeroacoustic experimental methods will be used in parallel to validate the new concepts.