I am not so sure. During the autonomy day presentation they talked about how they were constrained when designing the HW3 computer because it HAD to be retrofittable. They stated HW4 didn’t have those constraints.
I don't believe they did but if you have a time stamp for the video I'd love to hear it.
My recollection is the only mention of HW4 at all was that it'd be 3x more powerful, and was about 2 years out, and they didn't discuss it further.
Is it possible to switch computers? Let's say someone has a totalled car with FSD. Could they take out the computer and put it into car that had 2.5 hardware and would it work?
If they worked for Tesla and had the tools and access to do so, yes it would work.
That's literally what all the 2.5 owners who bought FSD got. A HW3 computer switched in.
I do not believe it would work for someone with no root access to the system-- though possibly
@verygreen could confirm.
That is precisely why I mentioned those. Don’t assume no one is paying attention.
I think you are grossly underestimating how much work it takes to make a reliable, automotive quality wiring harness
I think you're grossly overestimating it. Especially in a Tesla where there's good sized wiring troughs throughout the vehicle if they need to add something, and the newer computers have upgraded from 100mb to gigabit ethernet links so they could handle PLENTY more data coming in from more sensors if need be.
. Installation would require adding new fuses
No, it wouldn't.
The car doesn't have any fuses.
Tesla uses smart MOSFETs to control the 12V circuits.
You might wanna read up on how the vehicle works before discussing further.
I've personally seen cars marked as 'do not fix, scrap only' that their only problem was an out of date harness system.
blew my mind, but as I talked to more and more 'car guys' at work, it seems this is a fact. harness cost and labor and how deeply buried it is in the latest cars, changing it out or making major mods is a non-starter.
(its also an argument why reducing harness complexity is a goal they all seek, but its mostly talk; and if we end up with true redundancy, it will actually get 'worse', since 2x as many wires (perhaps) are needed in asil-d circuits).
Teslas wiring harnesses are an area they've been working on pretty hard.
Total wiring length in the Model 3 at launch was
half what it was in the Model S for example.
Tesla has patents on newer systems using vastly less wire than that too (like another 15x reduction in length) but I don't think it has appeared in any vehicles yet.
If you don’t think Tesla said all cars produced would have hardware capable of fsd, could you translate this from English to whatever language you speak?
“All Tesla vehicles produced in our factory, including Model 3, have the hardware needed for full self-driving capability at a safety level substantially greater than that of a human driver.”
My apologies I misread your question.
I thought you were asking if I believed the statement was true (which I did not, and pointed out nobody should have who was buying a 3, since they'd already admitted and shown it wasn't true before 3s were being delivered to real customers).
Instead you asked if I believe they ever
made the statement. Which, obviously, yes, since I'd have to believe they made it to be able to believe it wasn't accurate
Once they got to that point, their solution for it was to tell folks if they bought FSD and it turned out they needed any HW upgrades to use it, Tesla would upgrade them at no charge.
Which is why I bought FSD. And why I got HW3 at no charge.
I expect to get HW4 that way too if it's needed.... (or, a refund with interest I suppose if there's genuinely not any ability to do that)