Many users of FSD have found that the highway stack tends to be extremely conservative. Even with FSD V13, it maintains a speed far lower than the one selected.
This has been an issue with FSD’s speed profiles for a long time. While tapping the accelerator sometimes works, on V13, FSD will often slow right back down to the speed it was originally at - maintaining whatever speed the ego prefers.
Set Speed Vs Max Speed
Phil Duan, a Senior Staff Software Engineer on Tesla’s AI team, made a series of comments about the “set speed” vs “max speed” and the issues many users are experiencing.
Set Speed: Back in October, Phil mentioned the fact that set speed is a legacy concept from cruise control. For FSD, the vehicle needs to be able to determine the correct speed - the user should just have to set a driving style, and FSD should do the right thing. That also includes picking the most appropriate speed to drive at, given the current environment.
Max Speed: Max Speed should be the maximum speed you want the vehicle to stay below. It should not be confused with Set Speed, which Phil says that by design, “FSD will unlikely accelerate to match it.”
Just like switching from signal stalks to signal buttons, this is another Tesla change that users will have to get used to - as FSD will only drive as fast as it deems safe rather than the speed the user wants to drive at.
Upcoming Change
Phil replied to Dan Burkland on X and mentioned that Tesla is aware of the feedback and that there will be an update to the highway stack to address the issue where the vehicle’s speed yoyos up and down. This update will, in particular, target the vehicle’s speed on the highway and the following distance to a lead vehicle - both of which are now not adjustable by the user in FSD V13.
While it looks like Tesla is going to improve the vehicle’s speed on the highway, a user-selectable speed is not something they’re going to add and users will need to continue to use Speed Profiles to “set” their driving speed.
We’re interested to see where this update takes us because many first-time users have experienced confusion over why their vehicle doesn’t achieve the speed that they set - having been conditioned to expect that speed as the set speed.
FSD V13.2 is about a month old now, so it looks like we may see FSD V13.3 soon.
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Back in 2023, Tesla put together a rather unique Supercharger site idea - one with a CyberCanopy. This canopy is intended to provide solar power for Supercharging, helping to reduce the impact on the local grid while also providing a futuristic and Cybertruck-themed location that would set it apart.
Unfortunately, the plans never moved beyond the filing stage. Instead, Tesla opened a standard-looking Supercharger at the same Canton, Massachusetts location. However, the site is still well-situated just off the highway and benefits from natural tree cover in the parking area.
However, Tesla is at it again with a concept for another CyberCanopy with RGB lighting. Thanks to MarkoRP for spotting this. No April Fool’s this time.
We want to build a few Superchargers cool enough to be worthy of the trip itself. - Max de Zegher
CyberCanopy 2
This second Supercharger with CyberCanopy is set for Roswell, New Mexico, at the Whataburger in town. Featuring just eight stalls, this will be one of Tesla’s smaller Supercharger sites, but for what it lacks in size, it makes up for it in uniqueness. The charging stalls are covered from the rain by a futuristic, Cybertruck-themed canopy, which will have solar panels installed on the top of it.
According to the plans, the CyberCanopy boasts 20.88kW of solar panels on its roof, providing shelter from the elements while also providing some power back to the grid.
RGB Lighting
At nighttime, the Supercharger will make a big statement. Tesla intends to light the long edges of the canopy, which will not only look amazing, but it’ll actually make finding the Supercharger easier in a large parking lot.
The lighting coming off the edge of the canopy reminds us a lot of the lightbar on the Cybertruck and now the new Model Y. It’s definitely the direction Tesla is moving for all their models, so expect all future models to have it, including the new Roadster and the next-gen model.
Tesla’s Max de Zegher also took to X after the plans for the new Supercharger were found and shared the image above. He stated that Tesla wants to build a few cool Superchargers that will be worth stopping at, even if they’re out of the way a little bit. So it seems like this isn’t just a concept, but an idea that Tesla wants to expand to several areas around the country or world.
We want to build a few Superchargers cool enough to be worthy of the trip itself. Wish we could have kept it under wraps for longer, but submittal was needed for Planning Approval. We can't hide anything from @MarcoRPi1! 🙂 pic.twitter.com/X2WaKDd408
This particular site doesn't have a Megapack or other form of energy storage, unlike the upcoming Harris Ranch Supercharger site in California. That means that Tesla won’t be storing the solar energy gained from this site, but instead will be either offsetting the immediate grid impact or serving energy back to the grid when the site isn’t actively charging.
Tesla will likely be incorporating V4 Superchargers, including both V4 posts and the new, more powerful V4 Cabinets, as the permit states that Tesla will be redesigning the site internally before beginning construction. For Cybertruck owners, 500kW charging may be around the corner.
We’re hoping Tesla continues to deploy these kinds of Supercharger sites around the world - they make a stylistic statement about Tesla’s futurism, like the Shell gas station that was upcycled into a Supercharger site earlier this year in Spain.
They also make a big impact for ownership because it is a far more comfortable charging experience when you stop at a site that’s shaded from the elements - and one that’s better for the environment with offset emissions.
It was a rainy April 1st when a news-searching author went on a delve into the depths of April Fools to find fact from falsehood. And while we found a lot of fantastic jokes, we also found some good ideas.
So, with a shoutout to MarcoRP on X, whose April Fool’s Joke gave us a good run for our money for a couple of minutes, we thought to ourselves - what would a Cybercab Charging Station / Cleaning Hub really look like?
Cybercab Wireless Charging Sites
Now, before continuing, we’d like to point out that the image up top is a joke from Marco - it isn’t an accurate or real site map submission from Tesla. However, it gave us the impetus to think critically about what is required for a Robotaxi fleet, based primarily on the Cybercab, to be able to service a city.
Requirements
Tesla will likely need to charge a small fleet of Cybercabs at a single time and in a single place. That means that the site needs to be large enough to cover a major metro area while also still being compact enough to not cost too much money to build out.
In addition, we need to factor in charge times. The Cybercab is likely to launch with a battery around 50 kWh, which will result in a range of approximately 300 miles. With that much range, the average Cybercab may not need to charge more than once or at all during daytime shifts, so instead, most of the vehicles will charge overnight.
MarcoRP
Math and Charge Times
The overnight charging means that most of these vehicles could be charged slowly. When we did some back-of-the-napkin math last year, we determined that Tesla’s wireless charger will likely peak around 17 kW (for comparison, Tesla’s Wall Connector at 32 amps charges at about 7 kW). If we scale Tesla’s wireless charger down slightly to 10 kW, accounting for some energy loss and the potential size of the site, that means a Cybercab will be able to charge in about 5 hours.
Tesla’s upcoming V4 Supercharger unit can currently handle 1.5MW per cabinet, but this slower-speed charging is A/C, not DC, which means there is a step-down loss of about 3-5%. Let’s make that a comfortable 10% for any other overages, but we can estimate around 1.35MW of power. That 1.3MW will easily handle charging up to 100 Cybercabs at once - all wirelessly, using Tesla’s unique beam-forming and beam-steering technology to keep efficiency high at every single stall.
Within about 5 hours, a whole fleet of 100 Cybercabs could be charged overnight when electricity rates are cheaper and still be out in time for the morning commute.
While this is all just hypothetical, it really does make sense that Tesla will be establishing these sites that won’t require much space or a ton of energy.
Tesla recently curtained off a large section of the parking garage at Giga Texas, as well as some of their chargers on the eastern end of the facility, leading us to believe they may just be testing this at scale internally.
There’s a lot to look forward to with Tesla’s V4 Supercharger deployment coming this year and with Robotaxi launching in just a couple of months.
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