Category: Cars, including self-driving

“I feel the need for speed,” said my friend who flew the F/A-18 for the U.S. Navy to the Hertz folks in Tampa. They rented him a Volvo XC40 EV, purportedly capable of 293 miles of range. It’s 190 miles and 3 hours to get from Tampa to our neighborhood in Jupiter, according to The Google. It took him more than 7 hours, an average speed of 25 mph. He found various chargers along the way, e.g., from ChargePoint, but they often charged at only 6.5 kW, less than what you’d need to feed a climate-safe induction range.

Adding insult to injury, as he watched the divergence between miles to destination and miles to empty he was treated to an NPR broadcast about the irrationality of range anxiety. As with inflation, if Americans were only a little more intelligent they would see everything the same way that the D.C. ruling class does.

Perhaps there would have been some way for him to plan the trip around the availability of high-speed chargers, but that’s in a theoretical world, not our real world. His take-away: “I will never buy an electric car.”

Full post, including comments

Our current central planners love electric vehicles. “Slow Rollout of National Charging System Could Hinder E.V. Adoption” (New York Times):

More than two years ago, lawmakers approved billions of dollars [at least $5 billion] to build out a national electric vehicle charging network in the hopes of encouraging more drivers to switch to cleaner cars. The money, included in the bipartisan infrastructure law, was intended to help assure drivers they could reliably travel longer distances without running out of power.

But a robust federal charging network is still years away. Only two states — Ohio and New York — have opened any charging stations so far.

Central planners also love asylum-seekers and other immigrants without educational credentials. One popular job for low-skill immigrants is working in a food truck.

Our HOA sometimes hires a food truck for events on the common grass field. The sound of the truck’s generator is clearly audible and it would be much nicer if the truck were powered from a big EV battery.

What if the central planners in Washington, D.C. could be convinced to ladle out the taxpayer cash to a food truck EV startup?

What are the engineering requirements? A Google search shows that 5,000 watts (roughly 44 amps at 115V) is a good ballpark for the maximum draw of a typical food truck. Maybe the average load would be 2,500 watts and that needs to be supported for at least 6 hours, which implies a 15,000 watt-hour battery (15 kWh). The standard Tesla Cybertruck has a 123 kWh battery, so that should get the food truck to the site, run for two shifts if necessary, and get the food truck home. (The Ford F150 comes in 98 and 131 kWh “usable capacity” versions.)

In addition to saving the planet and providing jobs for asylum-seekers who wish to work, the Bidentrucks would reduce the ambient noise levels in our cities, which is an important equity issue. (“Noise pollution more common in communities of color and racially segregated cities” (Harvard 2017))

Maybe this all-electric truck wouldn’t help Greta Thunberg with her #FreePalestine goal, but it could save humanity from extinction.

Full post, including comments

Florida Power & Light is our remarkably entrepreneurial local electric utility. They may have purchased a mailing list of “total douches very likely to own a Tesla” because they recently sent me an email trying to sell an unlimited charge-at-home plan for EVs:

If they don’t need to pull a permit and run wires inside the garage, in other words, it is $372 per year for all of the electricity that you can fit into your Cybertruck or F150 Lightning. That’s an interesting way to help sell the idea of EVs.

This is on top of the somewhat fake SolarTogether program for virtue signalers who want to say that they’re using all solar power at home.

(Of course, I immediately signed up for SolarTogether. It’s a small price to pay for the virtue points!)

If we did have a Tesla and if we could fit it into our 2-car garage (mostly filled with bicycles, shelves, boxes, an heirloom sports car), I would definitely sign up for this new FPL scheme.

Full post, including comments

The Cybertruck is officially launched. I wrote about this product in 2019:

With today’s Teslas, one expects the driver to emerge and deliver a lecture on climate change, the merits of Elizabeth Warren, unions (except at Tesla itself), and a larger government, etc. What would the image be of someone who drives what looks like a high school kid’s first SolidWorks project?

How did they pick the name? This is for people who used to say “I’m using the Interweb”?

How are they going to deliver this car at $40-50k profitably? Isn’t stainless steel expensive?

(The announced 2023 base price is 61,000 Bidies; it is fair to say that this is the same or less than 50,000 2019 dollars?)

What does the Elon Musk book describe? A 2018 design session:

The Chevy Silverado was still on the showroom floor for reference. In front of it were three large display boards with pictures of a wide variety of vehicles, including ones from video games and sci-fi movies. They ranged from retro to futuristic, sleek to jagged, curvaceous to jarring. With his hands casually in his pockets, von Holzhausen had the easygoing and loose-limbed manner of a surfer looking for the right wave. Musk, arms akimbo, was coiled like a bear searching for prey. After a while, Dave Morris and then a few other designers wandered in. As he looked at the pictures on the display boards, Musk gravitated to the ones that had a futuristic, cyber look. They had recently settled on the design for the Model Y, a crossover version of the Model 3, and Musk had been talked out of some of his more radical and unconventional suggestions. Having played it safe with the Model Y, he did not want that to happen with the design of the pickup truck. “Let’s be bold,” he said. “Let’s surprise people.”

Every time someone would point to a picture that was more conventional, Musk would push back and point to the car from the video game Halo or in the trailer for the forthcoming game Cyberpunk 2077 or from Ridley Scott’s movie Blade Runner. His son Saxon, who is autistic, had recently asked an offbeat question that resonated: “Why doesn’t the future look like the future?” Musk would quote Saxon’s question repeatedly. As he said to the design team that Friday, “I want the future to look like the future.” There were a few dissenting voices suggesting that something too futuristic would not sell. After all, this was a pickup truck. “I don’t care if no one buys it,” he said at the end of the session. “We’re not doing a traditional boring truck. We can always do that later. I want to build something that’s cool. Like, don’t resist me.”

(maybe Musk was right on the highlighted point; Ford and GM are selling traditional-looking electric pickups and demand is weak)

What did the in-house design nerds think in 2019?

When Musk walked in the door leading from the SpaceX factory, his reaction was instantaneous. “That’s it!” he exclaimed. “I love it. We are doing that. Yes, this is what we are going to do! Yes, okay, done.” It became known as the Cybertruck. “A majority of people in this studio hated it,” says von Holzhausen. “They were like, ‘You can’t be serious.’ They didn’t want to have anything to do with it. It was just too weird.” Some of the engineers started working secretly on an alternative version. Von Holzhausen, who is as gentle as Musk is brusque, spent time listening carefully to their concerns. “If you don’t have buy-in from the people around you, it’s hard to get things done,” he says. Musk was less patient. When some designers pushed him to at least do some market testing, Musk replied, “I don’t do focus groups.”

An Australian hater:

Full post, including comments

From Elon Musk, the book:

Almost every year, Musk would make another prediction that Full Self-Driving was just a year or two away. “When will someone be able to buy one of your cars and literally just take the hands off the wheel and go to sleep and wake up and find that they’ve arrived?” Chris Anderson asked him at a TED Talk in May 2017. “That’s about two years,” Musk replied. In an interview with Kara Swisher at a Code Conference at the end of 2018, he said Tesla was “on track to do it next year.” In early 2019, he doubled down. “I think we will be feature complete, Full Self-Driving, this year,” he declared on a podcast with ARK Invest. “I would say I am certain of that. That is not a question mark.”

So they’ll fail again in 2024? Maybe not.

For years, Tesla’s Autopilot system relied on a rules-based approach. It took visual data from a car’s cameras and identified such things as lane markings, pedestrians, vehicles, traffic signals, and anything else in range of the eight cameras. Then the software applied a set of rules, such as Stop when the light is red; Go when it’s green; Stay in the middle of the lane markers; Don’t cross double-yellow lines into incoming traffic; Proceed through an intersection only when there are no cars coming fast enough to hit you; and so on. Tesla’s engineers manually wrote and updated hundreds of thousands of lines of C++ code to apply these rules to complex situations.

C++?!?! Seriously?

According to the book, Tesla is shifting to a ChatGPT-style machine learning approach:

“Instead of determining the proper path of the car based only on rules,” Shroff says, “we determine the car’s proper path by also relying on a neural network that learns from millions of examples of what humans have done.” In other words, it’s human imitation. Faced with a situation, the neural network chooses a path based on what humans have done in thousands of similar situations. It’s like the way humans learn to speak and drive and play chess and eat spaghetti and do almost everything else; we might be given a set of rules to follow, but mainly we pick up the skills by observing how other people do them. It was the approach to machine learning envisioned by Alan Turing in his 1950 paper, “Computing Machinery and Intelligence.”

By early 2023, the neural network planner project had analyzed 10 million frames of video collected from the cars of Tesla customers. Does that mean it would merely be as good as the average of human drivers? “No, because we only use data from humans when they handled a situation well,” Shroff explains. Human labelers, many of them based in Buffalo, New York, assessed the videos and gave them grades. Musk told them to look for things “a five-star Uber driver would do,” and those were the videos used to train the computer.

During the discussion, Musk latched on to a key fact the team had discovered: the neural network did not work well until it had been trained on at least a million video clips, and it started getting really good after one-and-a-half million clips. This gave Tesla a huge advantage over other car and AI companies. It had a fleet of almost two million Teslas around the world collecting billions of video frames per day. “We are uniquely positioned to do this,” Elluswamy said at the meeting.

Despite grand claims by academics seeking funding, rules-based AI generally failed to do anything interesting or practical from 1970-2010 (see MYCIN and CADUCEUS, for example). Statistical approaches to AI, however, began to deliver useful systems, e.g., for speech recognition, starting around 2010.

How Tesla describes the future:

FSD would provide a huge lifestyle boost here in South Florida where there are a lot of 1- and 2-hour drives that lead to interesting places, such as parks, cultural events, theme parks, etc. The drives themselves, however, are boring: straight highways, a lot of traffic close to Miami and Orlando. FSD should work quite well. FSD would also be good for getting to/from international airports. There are a lot more flights from FLL and MIA than from PBI, which is closer to our house, but with a self-driving car it might become more sensible to fly out of farther-away airports.

Full post, including comments