E-Mobility: How Does the Future Sound?

Authors

Univ.-Prof. Dr.-Ing. S. Pischinger, Dipl.-Ing. K. Wolff, Dr.-Ing. G. Eisele, Dr.-Ing. P. Genender, FEV Motorentechnik GmbH, Aachen; Dipl.-Ing. Dipl.-Wirt.-Ing. G. Schürmann, RWTH Aachen University

Year

2011

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 735

Summary

The interior noise of electric vehicles is analyzed by the example of FEV’s Liiondrive and compared to the corresponding series vehicle Fiat 500. Beside objective analysis audio lab panel tests including virtual sound modifications were performed for subjective evaluation. Due to the missing combustion engine noise the Liiondrive is up to 12 dB(A) quieter than the ICE-vehicle. The pleasantness impression can be further improved by reducing the high frequency noise shares from gear toothing and electromagnetic orders. The low load dependency leads to a rather undynamic impression, which can be improved by a load dependent admix of low frequency E-motor orders. Due to the negative side effect on pleasantness this fits for electric vehicles in the sporty market segment.

Order Members Login