Jean-Christophe Chamard

TL;DR: The aim of the eVADER project is to propose solutions in order to add warning sounds to electric or hybrid cars, while fulfilling two contradictory goals : sounds should be detectable but should not contribute to traffic noise annoyance.

TL;DR: In this article, the eVADER project aimed to enhance the technology of lectric-vehicles for the safety of pedestrians, especially the visually-impaired, by synthesizing sounds using different combinations of the 3 (features) X 3 (levels).

TL;DR: Results of the first study showed that adding external sounds improve EV detection, and modulating the frequency and increasing the pitch of these sounds makes them more effective; this improvement was confirmed in the ecological context.

TL;DR: In this article, the authors investigated the influence of some timbre parameters on the detectability and annoyance of warning sounds in a prototype vehicle including an automatic pedestrian detection device and an array of speakers focusing a warning sound in the direction of the pedestrian.

TL;DR: In this paper, the authors evaluated the influence of various timbre parameters on the detectability and the unpleasantness of a warning sound and showed that it is possible to make an electric vehicle easily detected while keeping its sound level much lower than the one of a conventional car.