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Normal Operating Sounds

tesla.com

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Re: Normal Operating Sounds

#181

Post by janoc »

londons_explore wrote: post #143

If I was the engineering team, I would be trying to eliminate all these noises. Every single one of these could be engineered away. For example the pops and bangs at a supercharger is the metal shield deforming when heated. Instead, it should have circular ridges stamped into it around the fixing points to let it expand against the springiness of the steel. The clunk noise from brakes could be engineered away by usin…

It is a matter of priorities. If that was a high priced Bentley where the customer doesn't expect anything but the best for their money, sure, go ahead.

But for a Model 3 where you need to carefully manage costs or you will either price yourself out of the market (and Tesla is already at the high end of it!) or go bankrupt I think you will have much bigger fish to fry than dealing with such noises.

You also obviously don't understand the engineering decisions - e.g. having the high voltage always on is not possible/allowed. It is a legal requirement because it must be possible to disable the high voltage circuit when doing maintenance on the car - or in the case of an accident. And it needs to switch off the moment the airbags activate, it is not only there for the firemen to turn off.

Also having the high voltage circuit off when the car is parked reduces the risks of fire should anything happen (malfunction, another vehicle crashes into a parked Tesla, etc.)

Manual lever is of no use in such situations. Pyrofuses Tesla already has.

Re: Normal Operating Sounds

#182

Post by Angostura »

joshspankit wrote: post #144
xg15 wrote: post #136

Earlier quoted context omitted.

I find it interesting that you can find stuff like this even in biology: When you shiver in cold weather, your body is basically doing the same.

This is an aside, but as a native of winter cold: shivering is an excellent strategy to avoid death, but it’s a terrible strategy for actually feeling warm. (Better is moving, relaxing, and massaging the ears/hands/feet to promote blood flow.)

> shivering is an excellent strategy to avoid death, but it’s a terrible strategy for actually feeling warm.

Sounds like an excellent survival strategy - saves you, but leaves discomfort so you have an incentive to get somewhere safer.

Re: Normal Operating Sounds

#183

Post by dmix »

ranman wrote: post #171
londons_explore wrote: post #143

If I was the engineering team, I would be trying to eliminate all these noises. Every single one of these could be engineered away. For example the pops and bangs at a supercharger is the metal shield deforming when heated. Instead, it should have circular ridges stamped into it around the fixing points to let it expand against the springiness of the steel. The clunk noise from brakes could be engineered away by usin…

> Every single one of these could be engineered away. You clearly didn't read half of the article. 50% of these are purposeful chimes. Also, why? What is the value of making a compressor or fan more quiet on the 3? It would be much better to lower the cost. Worry about the sound on the higher end vehicles but let the 3 be low cost.

Especially considering the alternative people are coming from is a loud very noisy machine with lots of moving parts, the fact it makes any sounds is probably not a big deal in the sum of things. Maybe eventually as everyone is in EVs this will be something people notice/care about in a competitive product way and you could or try to eliminate or shape the sounds to be more pleasing beyond. It’d probably make iteration more expensive if it became a requirement.

Most of the time they operate with lots of ambient noise of the tires on the road and outside the car which probably makes a lot of these barely audible or noticeable.

Re: Normal Operating Sounds

#184

Post by rainbowzootsuit »

bigyikes wrote: post #7

This one is pretty cool and definitely surprised me. > Motor Humming or Whirring when Navigating to a Supercharger … > In some circumstances (such as cold weather), it is normal for the motor(s) and components to make noise, such as humming or whirring as it generates heat to warm the Battery. Super cool that the motors can be used for things other than moving the vehicle. It reminds me of how ESCs for RC vehicles us…

Back when I watched more F1 racing they had a musical performance where they used the telematic systems of some cars, with their high revving motors, to play notes ie the telematics selectively. I couldn't readily find a reference but remember the event.

Re: Normal Operating Sounds

#185

Post by jowea »

londons_explore wrote: post #143

If I was the engineering team, I would be trying to eliminate all these noises. Every single one of these could be engineered away. For example the pops and bangs at a supercharger is the metal shield deforming when heated. Instead, it should have circular ridges stamped into it around the fixing points to let it expand against the springiness of the steel. The clunk noise from brakes could be engineered away by usin…

Don't you think customers want the audio feedback that everything is working fine?

Re: Normal Operating Sounds

#186

Post by jowea »

bigyikes wrote: post #12
Waterluvian wrote: post #8

Earlier quoted context omitted.

I always thought about this growing up. How the engine’s heat is used directly to heat the cabin and there is no heater. Also my gaming PC in the winter. It feels like free compute given I’m heating anyways.

> Also my gaming PC in the winter. It feels like free compute given I’m heating anyways. Totally. If it's cold and you have an idle rig, you might as well use it to run a crypto miner before reaching for an actual heater.

Won't you damage your GPU faster by doing that?

Re: Normal Operating Sounds

#187

Post by masto »

AYBABTME wrote: post #14

The loud "pops" at superchargers and when driving after supercharging surprised me for a while. I would stop to look under the car if I had hit something. The pops while charging are sort of self-explanatory, but those while driving took me a while to associate back to the prior supercharging. Basically, changes in temperatures are causing the pops. It's kind of weird and slightly annoying. Sometimes it happens for q…

I appreciate those pops and bangs, as a reminder of what it means to pump 250kW into a battery I'm sitting on top of. Especially in comparison to the 48kW that supplies my entire house.

Re: Normal Operating Sounds

#190

Post by [deleted] »

londons_explore wrote: post #143

If I was the engineering team, I would be trying to eliminate all these noises. Every single one of these could be engineered away. For example the pops and bangs at a supercharger is the metal shield deforming when heated. Instead, it should have circular ridges stamped into it around the fixing points to let it expand against the springiness of the steel. The clunk noise from brakes could be engineered away by usin…

[deleted]
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