Reverse sound

[Glen Baker LLC]

There is a standardized minimum sound requirement for electric vehicles (EVs) to alert the blind and visually impaired:
Federal Motor Vehicle Safety Standard No. 141
This standard requires EVs and hybrid vehicles to produce sounds that meet certain minimum requirements. The standard applies to passenger cars, light trucks, vans, and low speed vehicles.
Alert sound requirements
The alert sound can change depending on the vehicle's speed and direction. For example, the sound may be different when the vehicle is stationary, in reverse, or moving at different speeds.
Sound guidelines....
The sound should indicate the vehicle's presence, help determine its location and speed, and not be annoying.
The standard was established to reduce the risk of pedestrian crashes, especially for those who are blind or visually impaired. The NHTSA's statistical crash data study found that hybrid vehicles have a pedestrian crash rate that is 1.18 times higher than conventional vehicles

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[MrMoustache]

What if a train sounded like a baby crying? Or a dog barking?

Your reply was genuinely, sincerely on the money, so please don't mistake my intent when I say that the above is the most surreal image ever evoked on this forum, and also that if trains sounded like crying babies, I would for sure never risk beating the train crossing, and might possibly avoind railroad tracks altogether.

 

[Mr Pibb]

I guess if you got enough money you don't have to worry about stuff like that.

They bought a maverick, I'm doubting they have "fuck you" money.

 

[NotARealTruck]

That is cute. The study says that quiet vehicles are more harmful because they don't make sound to alert non-drivers, then says they can't allow different sounds because there is no data to support it. So they adopt and adapt a rule from one set of metrics and don't bother to actually perform tests.

Must have missed all the information about cognitive white noise and how it is the difference in pitch/timbre/amplitude of noise that draws our attention to something. Bikers call it "loud pipes save lives". Emergency vehicles use modulated sound to alert, and help in directionality of the sound so people can move out of the way.

Ohh well, i guess it will just have to be one of the many many things people can do, but shouldn't do. Being silent is super bad, however being unique isn't...right?

to be fair if they let you put whatever sound file in what's stopping someone from just uploading a blank audio file because they don't like the noise? Or some hippy uploading bird noises that nobodys going to hear.

 

[Mr Pibb]

to be fair if they let you put whatever sound file in what's stopping someone from just uploading a blank audio file because they don't like the noise? Or some hippy uploading bird noises that nobodys going to hear.

In feel like we need to go the dumb and dumber route with the most annoying sound in the world.

 

[CD_SM]

I actually find that chime to be a little too quiet to notice. A lot quieter than any ICE engine running in reverse (which if you've ever noticed, is louder than going forward.).

It took me a while to realize that my Kia was running in electric mode every time it backed up. I had to think about it to remember that it's easier to just reverse an electric motor and they probably left a physical reverse gear off).

Yes, they left off the reverse gear, (Priuses are the same way). Makes the truck lighter, simpler, and probably more reliable. However IIUC the all electric reverse is also why the tow rating on the hybrid is so low.

FWIW, the hybrid transmission has a total of about 12 moving parts - it's very simple and clever, and is a major reason why so many taxis are Priusses.

 

[Benilla]

and not be annoying.

Well would ya look at that, interesting they'd put in such subjectivity in the guidelines

 

[Six Foot Pickle]

My question is, when can we modify it and add in different sounds. I mean if it has to have a sound, why can't it be like ringtones? A turn of the century steam engine bell? The Jetson's spaceship? Imperial March? Top Gun theme?

Yeah! Even a garbage truck horn when backing up! You can hear those rascals clear3 across a parking lot and people start looking around when they hear that!!

 

[atomguy245]

You don't like sounding like a delivery truck when backing up?

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