Rivian Unveils Custom Silicon, R2 Lidar Roadmap, and Universal Hands Free
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The electric vehicle landscape just got a whole lot more intriguing with Rivian's unveiling of custom silicon, a new lidar roadmap, and universal hands-free tech. As commenters dug into the news, a lively debate erupted over whether designing bespoke chips is worth the effort, with some questioning if Rivian can truly outdo industry giants like AMD and Nvidia. Rivian owners chimed in with mixed reviews of their vehicle's software, ranging from "disappointing" to "beats Tesla's UX hands down." Amidst the chatter, a surprising consensus emerged: even with quirks, Rivian's tech is giving legacy automakers a run for their money.
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But, VW is willing to pay $5B for their software platform. I think they want to extend that to being able to sell custom chips and “AI” capabilities, whatever that means.
* Doors refuse to open
* Lose the ability to control media playback using any controls
* Any button in the UI just opens and closes the windows
Granted, I'm a server side/backend engineer mostly, and I don't know much about writing software/firmware for a very hostile emf environment. But if any project I worked on had bugs like this, fixed at the rate they're fixed on Rivian, I would assume a badly flawed architecture or non existent technical leadership
Yet VW paid billions for this very software. I can't imagine how bad it must've been on their own stack that they gave up and bought this other seemingly broken stack
The Rivian app does not permit you to send a command to the car while the app thinks the car is processing a command. Trunk opening? You can’t unlock the door. On top of this, if you try to open the trunk while outside Bluetooth range and then Bluetooth connects, you are still stuck waiting for the pending command to complete.
Oh, and the ridiculous “hey let’s always remind you that you own a Rivian” Live Activity seems to synchronize on a schedule that involves being hours and hours out of date.
The Rivian app sucks.
If something's wrong with your car's head unit firmware or android auto connection or whatever, of course you'd have a technician look at it?
Pretty much, yeah. I race SCCA and build race cars. Exactly why I want nothing to do with these, you don’t own it. You’re leasing the hardware that’s hogtied to the software.
As a car guy, it surprises me you weren't aware of this trend yet but I guess we all find out sooner or later. But hey - maybe that '89 Carrera will keep on trucking for a few more decades though - good luck!
https://theoutline.com/post/1398/why-can-t-karen-sandler-get...
I think you might be the one needing the luck
Stuff like "Doors refuse to open" is vague enough it could be a similar kind of issue which needs physical service/replacement rather than just a software update, especially if other buttons are triggering completely separate actions with the windows. Or it could very well be 100% software issues, and that could be more apparent with more details like "only does it after transitioning from this screen or pressing things in this order" type problems.
I really wish they would hire a strong frontend team. I can almost always figure out what happened just from the signal, and it's usually a state machine getting stuck. Which I have some sympathy for, but also you just can't have that happen in something that is going to feel polished and responsive.
- Yolk steering is terrible
- Lack of physical knobs. Haptics are nice but haptics don't work well for cars.
- Tesla menus are getting stuffed more and more with options, making affordance and UI crowding much worse
- The horn is a button press...no one in a emergency situation is looking for a button press..
- Native apps (for example Spotify) are inferior to just using my phone via bluetooth
- Calendar integration / notification is too chatty
one funny one is that periodically you can trigger the "more cowbell" rainbow road easter egg. You can cancel the road animation, but you can't cancel the easter egg music or control the volume.
Kidding, but seriously, this hasn't been my experience with Rivian, though I've only tried them for a brief period of time. How often do you have these issues?
Yea, Tesla has some. But they aren't sharing their secret sauce. You can't just throw a desktop computer in a car and expect it to survive for the duration. Ford et all aren't anywhere close to having "premium silicon".
So you're only option right now is to build your own. And hope maybe that you can sell/license your designs to others later and make bucks.
They are all expensive, but less than the risk adjusted cost of developing a chip.
And their chips give "1600 sparse INT8 TOPS" vs the Orin's "more than 1,000 INT8 TOPS" -- so comparable enough? And going forward they can tailor it to exactly what they want?
I've been involved with similar efforts on both sides before. Making your own hardware is not a clear cut win even if you hit timelines and performance. I wish them luck (not least because I might need a new job someday), but this is an incredibly difficult space.
NVIDIA also tailor their chips to customers. It's a more scalable platform than their marketing hints at... Not to mention that they also iterate fairly quickly.
So far anyway, being on a specialised architecture is a disadvantage; it's much easier to use the advances that come from research and competitors. Unless you really think that you are ahead of the completion, and can sell some fairly inflexible solution for a while.
One the business side, the economics are fabulous, your competitors can't "clone" your product if they don't have your special sauce components. So in many ways it becomes a strategic advantage to maintaining your market position.
But all of that because the all up cost to go from specification to parts meeting the specification dropped into the range where you could build special parts and still price at the market for your finished product.
A really interesting illustration is to look at disk drive controller boards from the Shugart Associates ST-506 (5MB) drive, to Seagate's current offerings. It is illustrative because disk drives are a product that has been ruthlessly economized because of low margins. The ST-506 is all TTL logic and standard analog parts, and yet current products have semiconductor parts that are made exactly to Seagate's design specs and aren't sold to anyone else.
So to answer your question; apparently the economics work out. The costs associated with designing, testing, and packaging your own silicon appears to be cost effective even on products with exceptionally tight margins, it is likely a clear winner on a product that enjoys the margins that electric vehicles offer.
In a vacuum there are potentially some advantages to doing your own silicon, especially if your goal is to sell the platform to other automakers as an OEM.
But custom silicon is pricey as hell (if you're doing anything non-trivial, at least), and the payoffs have a long lead time. For a company that's bleeding cash aggressively, with a short runway, to engage in this seems iffy. This sort of move makes a lot more sense if Rivian was an established maker that's cash-flow positive and is looking to cement their long-term lead with free cash flow. Buuuuut they aren't that.
1. He has a STEM PhD (from MIT)
2. He is conservative in what he discloses
3. Not outspoken or political
IMO one of Rivian’s benefits is its image as the anti-Tesla
It isn't however opaque for optical glass (since the LIDAR has to shine through optical glass in the first place) so it hits your camera lens, goes straight through, and slams the sensor.
I was just speaking in terms of the commonplace LIDAR solutions for road use.
The eye safety threshold for 850/905 nm is a lot lower than 1550 nm, so they output way less power, but the much better sensitivity of silicon sensors makes up for it partially. You can also squeeze out more range using clever signal processing and a large optical aperture (which allows you to output more light, but since the light is spread out across the aperture, the intensity doesn't exceed the threshold). Typically, the range of 850/905 nm lidars is less than that of 1550 nm lidars though.
On the bright side, due to lower power, there hasn't been any instances (to my knowledge) of 850 nm and 905 nm lidars damaging cameras, whereas at least two different 1550 nm lidars have been known to destroy cameras (Luminar and AEye).
On the Luminar lidar website [1] they proudly advertise "1,000,000x pulse energy of 905nm".
[1] https://www.luminartech.com/technology
Engineers should design in a way where the worst case possible is the assumption not the exception
Automotive LiDAR is designed to meet Class-1 laser eye-safety standard, which means "safe under normal conditions." It isn't some subjective/marketing thing, it is an official laser safety classification that is very regulated.
However, if you try to break that "normal conditions" rule by pressing your eyeball directly against an automotive LiDAR sensor for a very long period of time while it is blasting, you might cause yourself some damage.
The reason for why your phone camera would get damaged, but not your eyes, is due to the nature of how camera lenses work. They are designed to gather as much light as possible from a direction and focus it onto a flat, tiny sensor. The same LiDAR beam that is spread out for a large retina can become hyper-concentrated onto a handful of pixels through the camera optics.
Sorry if this is a silly question, I honestly don’t have the greatest understanding of EM.
> If you have many lidars around, the beams from each 905 nm lidar will be focused to a different spot on your retina, and you are no worse off than if there was a single lidar. But if there are many 1550 nm lidars around, their beams will have a cumulative effect at heating up your cornea, potentially exceeding the safety threshold.
[1] https://news.ycombinator.com/item?id=46127479
Am I being catastrophically pessimistic to think that in addition to swatting insects as it moves forward, the cars lidar is blinding insects in a several hundred meter path ?
I’m very optimistic about automated cars being better than most humans but wonder about side effects.
It seems like, due to the inverse square law, the main issue is how close you can get your eye to a LIDAR sensor under normal operation, not how many sensors are scattered across the environment. The one exception I can think of is a car that puts multiple LIDAR arrays next to each other (within a foot or two). But maybe I'm misunderstanding something!
Also, it’s something of a nitpick but physically point sources still end up as a circle.
Wasn't sure what level of knowledge you were coming from re: PSFs, so I was keeping it basic.
1550nm might be worse for sensors because a good portion of the light is only being dumped into the metal layers - pure silicon is mostly transparent to 1550nm. Not sure how doped silicon would work. I can tell you that 1070nm barely works on an IQ3 Achromatic back…
https://www.pmoptics.com/silicon.html
There is a flip side to this though. Quick searches show that the safety of being absorbed and then dissipated by the water in the eye also makes that wavelength perform worse in rain and fog. I think a scarier concept is a laser that can penetrate through water (remember humans are mostly bags of salt water) which could, maybe, potentially, cause bad effects.
Class 1 is pretty darned safe, but if you're continually bathed by 50 passing cars an hour while walking on a sidewalk... pitch it to a PhD student you know as something they should find or run a study on.
There was another discussion a week back https://news.ycombinator.com/item?id=46126780
The lack of accessible certification/testing docs for the lidars is also worrying. Where is the proof that it was even tested?
TIL barcode readers can cause serious eye damage when misused. You'd think they'd have warning labels on these things given how common self-checkout is nowadays and how curious/stupid children can be
Iphone face unlock users lidar to scan your face when you look at it.
But yes there are lidar sensors out there where if broken in the right way could burn out your retinas permanently.
Those are my bearish questions. On the bullish side I the VW deal shows that they're willing and able to license part of their platform, so possibly have a big chance to recoup costs and maybe turn a profit just on that side, which justifies a big software + autonomy investment.
Oh, I think everyone missed this. Rivian is betting Elon made a big mistake by designing FSD to be strictly for Tesla. Rivian are doing FSD to license it out to other manufacturers. They're planning to open a new market.
Cruise automation was also for years working on custom silicon, I knew people there. Many people working on the custom devices didn't really believe in the mission statement either, but they were paid well, and got to do fun work, so they took the job.
What makes Rivian, or Tesla better at making the "normal" car pieces compared to Toyota, or Honda? The answer is they're really not better at those things and quite worse typically ; bad fit and finish, rattles, corroding suspension components, difficult to buy replacement parts, etc.
If these companies were truly about making electric cars available to all, a partnership with a car company that knows how to do the "regular car stuff" makes a LOT more sense.
Instead you have these companies that might be innovative in the drive train, electronics, batteries, and co-packaging who have to learn all the "hard" stuff normal car companies have been doing for a 100-years.
Now, instead of moving into a partnership with a regular car company, they're becoming hardware/software organizations making custom silicon with custom software.
Even doing custom silicon and the associated software takes YEARS of expertise to do it and not have a 1000 warts, not withtsanding going into a MOVING VEHICLE where the risks of making mistakes is life and limb.
So, my conclusion is this is more fancy smoke and mirrors to impress investors and the general public, but not in the best interest of end-users (people who buy vehicles to use as transportation).
Personally I think they will ship R2 Gen 2 vehicles to the early adopters that are less concerned with ADAS.
My R2 reservation is very late (I had to redo it for reasons) so I probably won't be able to order one until it's available anyways.
But it wasn't pushing-six-figures smitten, which is where you're at when you get a new one with customizations.
This 1000%.
Electric cars are supposed to be simple. Give me something in a shape of a Civic, with the engine replaced with a motor and a battery good for 150 miles, and sell it for $10-12k new. Don't even need an entertainment cluster, give me a place to put a tablet or a phone and just have a bluetooth speaker.
Instead, we are getting these boutique, expensive vehicles packed full of tech, but in the end, they still fundamentally suck as cars compared to gas alternatives.
I think this is more or less the pitch behind Slate (https://www.slate.auto/en), though it's more of a truck/SUV form factor.
Illegal - backup camera is required. Speakers probably too for alerts. Also you are super naive if you think that's where actual cost is.
This is why the rest of the car has to be an already proven platform that is cheap to make.
The only part an EV doesn't have is the engine and gearbox. Admittedly, these are pretty major components, but it's a technology mature enough to be extremely reliable if the manufacturer cares to make it so.
But what an EV has instead is a massive battery, charging electronics, a DC-DC converter keeping the 12V battery charged, and various electric motors and actuators for the air conditioning and coolant loops. These are significant more reliable than oily engines in lab environments, but the automotive environment tests the mettle of seemingly resilient components.
i can assure you my expensive EV does not suck as a car compared to gas alternatives, its better in almost every way. insane performance compared to any gas car, superb handling, way better driving UX tech, silent, clean. & 400mil range is just fine for me thanks. Yes it cost a lot.
Cars used to compete on distinctions between driving experience/fuel economy/reliability/etc. In comparison, differences between electric cars is mostly superfluous. They're very interchangeable.
For the next generation of car buyers, infotainment and features are going to be the main features. And if you are handing all of that away to the tech companies, your entire company is going to just become another captive hardware partner of the tech giants.
I've been using car play for the better part of the past decade and don't know what it looks like in vehicles without it.
It’s the reason I always seek out CarPlay and why Tesla has reportedly decided it’s worth adding CarPlay to capture people like me.
I would expect you can still skip forward and back, and read titles. So as long as you start before you drive you might be gucci?
But that is all, no playlists control.
I use Android Auto on rental cars all the time.
My daily driver is a Tesla (Model S /w MCU v2) that doesn't have it. And doesn't need it to provide a usable experience.
Android Automotive has a much smaller library than Android Auto, so the selection for audio apps, such as podcasts and music, are much more limited. The options for map software is smaller too. Also Android Automotive doesn't necessarily use your phone's existing internet connection. Depending on the maker, you have to subscribe to a separate data plan.
1. Waze;
2. My preferred third-party podcasting app.
Who was this announcement for? I’m at a point where I think Rivian’s real customers are investors.
That's one alternative.
Another alternative would be that you get what you get at purchase time, and you have to buy a new car to get the newest update.
"Continuous development" isn't always a selling point when it's something with your life in its hands. A great example is Tesla. There are plenty of people who are thrilled with the continuous updates and changes to everything, and there are plenty of people that mock Tesla for it. Both groups are large markets that will have companies cater to them.
Don't get me wrong, as another commenter brought up, I hate traffic too, and the annual fatalities from vehicles are obviously a tragedy. Neither of them motivate me to sign away my rights and autonomy to auto manufacturers.
What happens when these companies decide they suddenly don't like you, cancel your subscription, and suddenly you're not allowed to drive, or I suppose rather use, the vehicle you "own"? It will become the same "subscription to life" dystopian nightmare everything else is becoming.
Or how about how these subscriptions will never be what the consumer actually wants? You'll be forced to pay for useless extra features, ever increasing prices, and planned obsolescence until they've squeezed maximum value out of every single person. I mean imagine trying to work with Comcast to get your "car subscription" sorted.
You know else reduces traffic and fatalities? Allowing workers to actually work from home. Driving during COVID was a dream come true. Let's let the commercial real estate market fail as it was primed to.
Which, these issues can be reduced if we stop giving people small slaps on the wrist for driving in ways that greatly endanger others. Hefty fines, temporary/ permanent driving bans, etc. Make people actually pause to consider their actions for once in their lives.
Wow, an improvement we can start doing _today_, that doesn't involve forking over billions of dollars to tech companies to pump out half-baked "self-driving" capabilities. These companies' mission isn't to save lives, in case that's not obvious, it's to _make money_. They are not and have never been interested in potentially simpler/ better solutions if they don't lead to sucking the consumer dry of their money.
People have this strange obsession with over-complicating everything they possibly can.
Of course any of the above if they work are a good thing. We are debating cost/benefit here though.
4) The "smarter" the vehicle, the more they get to track you and sell your data. You'd think "oh in that case I'm sure it'll be like google where I'd pay a reduced price that's offset by the ad money". No, they will obviously happily rip you off on the vehicle itself AND by selling your data.
I'd be ecstatic to see the entire industry wiped out by a newcomer on the scene.
This makes it harder not easier!. Cars can only see for $50-100k because they last for many years. When the person who wouldn't caught dead in a car more than 3 years old trades in for a new one it gets sold. If the car only lasted 5-7 years that used car buyer would factor that in and be unwilling to pay nearly as much - they would have no choice because banks won't give you a 6 year loan on a car that only has 2-4 years left.
Planned obsolesce exists, but they are thinking of 12-20 year old cars need to go. Any car that makes it to 25 though is a collectors item and they want you to show it off at car shows (preferably not a daily driver though) so people think you can make cars that go that long.
I will say it _can_ be difficult to keep up though, you don't necessarily find out a particular model is a lemon until it's too late, so it can take some years for everyone to learn and adjust. I mean a buddy of mine only found out in 2024 that his 2016 Explorer had a common/ known engine flaw (the water pump frequently goes bad and requires an engine rebuild). And so how do you reconcile that against for example some of Ford's other accomplishments? I mean, there's loads of F150s that have lasted forever (or at least used to).
In theory banks/ insurers would have enough data today to be able to map the general trend; so I don't think you're wrong, but at the same time I will counter that we may not yet be fully experiencing the effects of any obsolescence being implemented today.
I guess my larger/ real point is that I just foresee this industry heading the same way as phones, and many computers.
I’ve recently posted items about my smart home. Point of DIY it doesn’t need to suck, cost a lot or hold you captive.
https://news.ycombinator.com/item?id=45999721
The non-Tesla manufacturers have noticed this and positioned products accordingly. Tesla does Musk-driven-development so only caters to the one group.
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