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There’s a regulatory requirement that specifies how much minimum noise should be emitted in each frequency band. All BEVs need this pedestrian alert system. It
by garyfirestorm 4y ago
There’s a regulatory requirement that specifies how much minimum noise should be emitted in each frequency band. All BEVs need this pedestrian alert system. It takes into account that partially deaf people may not be able to hear certain frequencies say tire noise band.
- jillesvangurp 4y agoThere are a few models of ice cars that basically are very quiet when they drive slowly. Nobody ever complains about how quiet they are. It's not a problem. And it was never a problem in the past. It's only a problem when EV's are concerned. Or rather it's a problem people imagine is real because other people who also did not do their homework say it is so based on what they've heard.
- garyfirestorm 4y agoI actually work for an automotive company and specifically deal with vehicle acoustics. Yes EVs at low speeds are imperceptible and a danger to even a person with baseline hearing let alone a partially deaf or blind person. These regulations are there for a reason. It’s not imagination. We measure quantifiable data using reference microphones. Though I agree that some gas cars are extremely quiet and difficult to perceive, that doesn’t mean we should shackle ourselves and prevent meaningful change for next generation vehicles.