Hacker News new | ask | show | jobs
by colatkinson 1395 days ago
Way back when EVs/hybrids were first hitting the market, I remember some chatter about basically adding an external speaker to play fake engine noises. Not perfect, but it might help a bit.

I've personally encountered a decent number of Tesla/e-bike drivers who have... nonstandard views on what a stop sign means, and the fact that the vehicles are silent is always a bit disconcerting.
1 comments
cmrdporcupine 1395 days ago
Most EVs do have such a speaker. But it only plays when they're driving at low speeds where they could be a threat to pedestrians, bikes, etc. And also there's no standardization of the noise.
link
ivan1783 1395 days ago
All EVs have a speaker and the noise is standardized. The problem is there is a different standard in each country and the solution is to make one noise which covers all of the standards - thats why it ends up sounding so strange. The combination of the various standards varies from OEM to OEM - thats why it ends up sounding different OEM to OEM.
link
cmrdporcupine 1395 days ago
I mean... maybe in the US? Here in Canada all the EVs seem to make a different noise. The noise my Volt makes is entirely different from my friend's 2nd gen Leaf, for example.

Maybe that's changing with the latest round of vehicles, but I don't recall hearing about any regulation passed.

link