New design scope for aerodynamic and acoustic optimization of the underbody of fully electrified vehicles
Sponsor: Bond Laminates GmbH
The Audi e- tron is Audi's first fully electric series- prodction sports utility vehicle and forms an integral part of a systematic electrification strategy for the product range. The e-tron here represents the vanguard of the new drve system and with its intelligent solutions, makes good the brand's claim of " Vorsprung durch Technik".
Battery electric vehicles differ in many respects from the vehicle concepts of vehicles conventionally powered by the internal combustion engine. Both the package and the vehicle architecture must be rethought and redesigned. The aaplies in particular to the entire drive train, which is radically changed by the elimination of elementary components such as converters, cardan shafts, the internal cobustion engine, exhaust systems an so on.
In return, completely new components arrive with new ovarall- verhicle requirements and design criteria, such as the high- voltage battery, electric motors and a much more extensive wiring system. Even in the area of the underbody, BEVs offer comppletely new design possibilities, but also challenges. This paper deals with the newly developed underbody concept of the Audi e-tron, which in dies form has not been used in any previous series- production car with all- terrain capabiltiy.
Not only the extent to which the underbody concept differs from the classic underbodies of cars with internal combustion engines will be described but als which possibilities have emerged fro optimzation with regard to arodynamics, acoutics and body protection. At the same time, it will be shown which challenges have come and hand-in-hand with such novel concept.