NVH challenges of modern automotive powertrains English Free

The ‘ecological conscience’ of consumer, the CO2 reduction imposed by legislation and the low consumption tax policy adopted by majority of countries, motivate car manufacturers to develop new generation of low CO2 emission cars. The reduction of rolling friction (low resistance pneumatics), of air resistance and of overall mass is the design imperative for low consumption vehicles.
Still, the most important reduction of fuel consumption and CO2 emission is to be achieved by new generation of powertrain. This implies different new technologies which can represent a marked impact on NVH-behavior of engines.
In the past, NVH was considered as a secondary performance. However, the rise of high quality products made car manufacturers change their point of view. NVH has become a selective performance, allowing the positioning a car in the upper commercial product range, which generates the best profits. Therefore, in actual highly competitive automotive market, the acoustic comfort of vehicle is a major issue, particularly when power train noise and vibration are concerned...

INGENIEURS DE L'AUTO SE DIGITALISE

 

 

La revue Ingénieurs de l’Auto est maintenant diffusée en print et on line. Une grande première pour la SIA avec ce numéro 865, disponible au format numérique.

Cette version digitale sera, à chaque numéro, réservée aux membres de la SIA abonnés.

Exceptionnellement pour ce premier numéro on line, et en lien avec la situation de confinement et de télétravail de beaucoup d’ingénieurs de notre industrie, la version digitale du numéro de Mai est accessible à tous.

 

DÉCOUVRIR LA REVUE