286
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 20 Oct 2023
286 points (86.1% liked)
Technology
59366 readers
1351 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
It's got a lot of new things to them
800v power train
Newer 4680 cells
~85% custom chip controllers (up from 60s on Y)
48v power electronics instead of 12v, which is fairly new to everyone and the supply chain isn't as robust as the 12v one, but long term it's good for industry. (Edit I've heard talk of how they connect everything is going to be very different too, but nothing I've seen confirmed)
Folding the stainless steel at scale
9000T press, biggest one made
The wheels that can turn on front and back
New assembly method (excluding stainless steel part)
I'm sure there's more they didn't tell us.
It went from being a weird vehicle (love or hate it) to a new technology platform.
How is 48v better than 24v, for example? I don't really know much about car electronics
ok i work in a kind of tangential industry and can kind of answer this probably
in general the higher the voltage the smaller the current, which you're generally happy about because your 1) electrical losses and 2) cable/wire diameter are both proportional to current
the tradeoffs being 1) it gets harder and more important to isolate the circuit (e.g. your wire insulation that prevents the 12V bus from shorting out to the vehicle chassis now needs to be thicker) and 2) all the stuff people make for cars (i dunno, windshield wiper motors, radiator fans, whatever) is currently for 12V
in general this move probably makes sense, provided they're able to figure out their supply chains, and if tesla can position themselves as being like the first company to figure out a bunch of these 48V components at scale that's probably going to be really good for them. they did a kind of similar thing with the charging infrastructure if i understand currently, like now the tesla charging cable is the de facto north american standard
I'm no expert, but even with ordinary 12V wiring, the insulation is generally rated for up to 600V, just because it's not really practical to make it any thinner...