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> Or can and power over twisted pair. I was reading an anti-Musk subreddit over on Reddit and I think the cybertruck is doing this? They were mad that the cyb
by jrockway 3y ago
> Or can and power over twisted pair.
I was reading an anti-Musk subreddit over on Reddit and I think the cybertruck is doing this? They were mad that the cybertruck uses 48V and Ethernet cables, but to me, that seems perfect for CAN and power. We already use 48V (or similar) for PoE, and CAN needs a twisted pair... so why not buy that off the shelf instead of using a custom wiring harness?
I don't think the cybertruck is a particularly attractive vehicle, but I also don't think they're crazy for trying that. You can do 10Gbps over a cat-6 cable and it works great. So I'd expect that you can easily do CAN.
- deleted 3y ago[deleted]
- dreamcompiler 3y agoMusk has publicly stated that CAN is too slow for modern cars, which is why they chose ethernet for the Cybertruck. https://youtube.com/watch?v=ky1Z2klPalw https://youtube.com/watch?v=ky1Z2klPalw
- hef19898 3y agoCAN buses run into bandwidth issues at some point. Just remove all the OTA, car-as-a-service and de-facto surveillance crap, and one should be able to get away with CAN buses. Nothing wrong with ethernet, but listening to Musks statements, especially in fields I have some not even deep knowledge, alwqys like listening to a very confident, but otherwise clueless, 1st semester student selling you semester 2 basics as the latest and hottest shit under the sun nobody else even considered possible so far...
- panick21_ 3y agoThe question is do you want to have something that is high performance or something that you 'can get away with'. We get it, you don't like the features of modern cars. Well sure if they built the car you would like, then CAN bus is fine. But that's simply not where the future is going, if you like it doesn't matter. Its simply not relevant when car CEO discuss what is needed for modern cars. You solution of 'just remove X,Y,Y features' is just a laughable suggestion here. Its like saying 'you don't need a new graphics card', I play 'Star Craft: Brood War' just fine. Ok I agree, I don't play AAA games either but to criticize a Nvidia CEO for saying the need higher performance would be totally absurd. Cars will get more electronics parts, more cameras, more safety equipment, more communication and so on and so on. Moving to higher voltage and PoE is simply a logical thing to do given that reality. If Musk is so utterly clueless, what of the things he said is actually wrong? Musk even literally said its not 'hot shit', its just bringing things up to date. But that's the simple facts of the automotive industry, lots of 'we did it because we have always done it' and despite it not being 'hot shit' its really hard to change. So in the automotive industry, such changes are great because if you are building millions of something, it makes a very bit difference. Seems to me you are reading into it what you want to read into it.
- noughtme 3y agoDidn’t read the article, but Musk mentioned in an interview yesterday they are specifically not using CAN and are using Ethernet. He didn’t explicitly say, but it seems likely they are using PoE, saving a lot of wiring as you can daisy chain a higher bandwidth connection and you don’t need separate power cables. https://youtube.com/watch?v=ky1Z2klPalw https://youtube.com/watch?v=ky1Z2klPalw
- Geee 3y agoYeah, Elon talked about this in his latest interview with Munro. It seems that they just use Ethernet rather than CAN bus.[0] [0] https://youtu.be/ky1Z2klPalw?t=791 https://youtu.be/ky1Z2klPalw?t=791
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- inemesitaffia 3y agoHave a reddit link?. Search didn't help