Design of Electric or Hybrid vehicle alert sound system for pedestrian

Jean-Christophe Chamard , Vincent Roussarie (1)

1 PSA Peugeot Citroën

The arrival of fully or hybrid electric vehicles raised safety problems respect to the other users (pedestrians, cyclists,…) because of their low emission level. A technical solution to solve this problem is to generate an alert sound. This signal has to improve the interaction of the vehicle with its environment. Thus , the signal must carry relative information to the situation of rolling: speed of the vehicle, stabilized speed, phase of acceleration/deceleration, intentions of the driver… All this without disturb the resident's quietness. How translate this in term of signal processing and how define the level of emission? We propose to present the results of tests carried out with an aim of answering those questions.

Mots clés: Alert sound system; electric vehicle; noise level

Domaines: Acoustique [physics.class-ph]

Jean-Christophe Chamard, Vincent Roussarie. Design of Electric or Hybrid vehicle alert sound system for pedestrian. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811353⟩