Prius' artificial engine noise demonstrated, explained
The approval of the Pedestrian Safety Enhancement Act last year essentially mandated that electric vehicles or hybrids running only on electric power--devoid of the actual engine noise that makes pedestrians (particularly the visually impaired) aware that a vehicle is approaching--must now generate some sort of artificial proximity notification noise. However, although the Act mandated that EVs must make a sound, it didn't specify exactly what sound they should make. This means that every EV and hybrid manufacturer is free to make its cars sound like anything.
Toyota has released a video that explains the vehicle proximity notification sound designed … Read more