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It's quite obvious no-one is reading the article. The rear brakes locked and were dragged ~50 feet. The front axle CONTINUED pulling the Cybertruck for those 5
by CobaltFire 2y ago
It's quite obvious no-one is reading the article.
The rear brakes locked and were dragged ~50 feet. The front axle CONTINUED pulling the Cybertruck for those 50 feet, with the brakes applied.
There is absolutely no engineering case in which this should be expected behavior.
- shkkmo 2y agoThe people who read the article tend to filter into the comments a bit slower because of, well, reading the article.
- ow3p945j4293 2y ago[flagged]
- drawkward 2y agoFirst they came for the burnouts, but I was not a burnout so I didn't care...
- bottlepalm 2y agoWhere's the video? He said he'd release it a month ago https://x.com/bfreshwa/status/1793996219317891282 https://x.com/bfreshwa/status/1793996219317891282
- CobaltFire 2y agoThere is security camera footage from his house embedded in the linked article... In case that is still too difficult, here's a link: https://x.com/bfreshwa/status/1803823968547217903 https://x.com/bfreshwa/status/1803823968547217903
- KennyBlanken 2y agoPeople should archive that, because even before he bought Twitter he'd DMCA videos that were bad PR for Tesla. Edit: speaking of suppression of bad PR, HN mods nerfed this submission into the ground https://hnrankings.info/40782552/ https://hnrankings.info/40782552/
- dzhiurgis 2y agoBut video proves no claims. No skid marks, no locked steering. Looks like he just ripped too fast and didn't have enough distance to brake. > mods nerfed this submission into the ground Because it's Jalopnik, known anti-EV and especially anti-Tesla page ran by Gawker. Look at all the submissions from the domain and tell me they aren't biased.
- romwell 2y agoThe video is in the article: https://x.com/bfreshwa/status/1803823968547217903 https://x.com/bfreshwa/status/1803823968547217903
- FireBeyond 2y agoRight. Your brakes should always overpower your throttle, electric, ICE, whatever. I have to be very delicate with my brakes around town, because 15" ventilated disc brakes are great for high performance, but VERY grabby. But at least I feel confident that they'll stop me (and keep me stopped) very quickly.
- tamimio 2y ago> ventilated disc brakes are great for high performance, but VERY grabby. I installed the same last year, and the difference is obvious. I'm glad how "grabby" they were; a few times, it was an imminent accident without them.
- userbinator 2y agoIf you've ever driven a vehicle with air brakes, they are even more "grabby"; to the extent that you need to be careful not to cause the tires to lock up.
- 486sx33 2y agoThere are lots of ICE vehicles that have enough power to overcome their brakes My diesel pickup could easily rip the brakes to shreds under acceleration. Electric vehicles are known for crazy amounts of torque as well… sounds like somehow this guy had both the accelerator and the brake pedals depressed at once. It’s weird
- jjav 2y ago> There are lots of ICE vehicles that have enough power to overcome their brakes My diesel pickup could easily rip the brakes to shreds under acceleration. I'll dispute that. Have you actually tried that? If so, your brakes are defective. There's an easy intuitive way to visualize this. Remember that any change in speed or direction is acceleration. Braking is just acceleration with a negative sign. The engine generates horsepower to accelerate the car from zero to some speed. While we don't usually speak of HP when talking about brakes, it is equivalent. We can also compute how many HP the brakes are producing when accelerating (with a negative sign) the car from that speed down to zero. So: a car that has a more powerful engine than brakes would be able to accelerate from 0 to 60 (or pick some speed) faster than the time it takes to brake from 60 to zero. Can you think of any car or truck that can accelerate faster than it can brake? Doubt it (unless the brakes are broken). To your truck example, I have a one-ton turbo diesel truck. I hadn't tried this experiment so was curious after your comment and went for a drive. As I expected, if I hold down the brakes the truck won't budge even at full throttle. The brakes are massively more powerful than the engine. They have to be, after all those brakes are designed to bring the full rated capacity of the truck and trailer (28,000lb) to a stop from highway speeds. The engine, while very powerful, has way less power (acceleration potential) than the brakes.
- romwell 2y agoI mean, here's Tesla's response: >We have reviewed logs and due to the terrain the accelerator may or may not disengage when the brake is depressed Can it be clearer than that? They literally say that the Cybertruck may continue pressing on the gas pedal while the driver is slamming the brake pedal. That's, like, the first thing they tell you not to do. Additionally, the engine being able to overpower the brakes while stationary (or close to that) is not something that you commonly see in automobiles. As in: I'm not aware of any other vehicle with brakes designed that badly. As a cherry on top, the steering wheel was also non-operational during the incident. Which is surely an innovation in drive-by-wire implementations.
- jjav 2y ago> Which is surely an innovation in drive-by-wire implementations. I wish it was illegal to have drive by wire in brakes or steering. These are the two most vital systems in a car that I absolutely need to retain control of in order to stay alive. All software has some bugs, so we need to acknowledge that. Brakes and steering are too vital to let them be controlled by software alone, when we know there are always some bugs in all software.
- dzhiurgis 2y agoSo you'd ban 50% of planes too (Airbus)?
- inferiorhuman 2y agoYeah I mean I'm all for banning people from driving an Airbus on public roads. And Boeings, Bombardiers, Leers, and every other FBW airplane. We should probably extend this to all planes though, just to be safe.
- romwell 2y ago>So you'd ban 50% of planes too (Airbus)? Aside from the obvious answers (planes are regulated differently from cars, getting a pilot's license requires more training, etc), let me point out that autopilots for planes existed for over a century, but we are only getting some semblance of that in cars now because flying is a much easier control problem to solve. See, there's not many obstacles in the air.
- goalonetwo 2y agoUnfortunately anything Musk adjacent will result in people absolutely defending Musk against all factual basis or the complete opposite.
- multimoon 2y agoUnfortunately anything Musk adjacent will result in people absolutely jumping on the hate bandwagon before there are details. Let’s wait until we know more details of what happened. This could’ve been the trucks fault, or it could’ve been the driver falling asleep and blaming the truck. If this was poor design on Tesla’s fault, then yes we criticize them, however we criticize the company as a whole (including musk), not just their CEO. I’m not sure why everyone is so entrenched and hyper fixated one way or another on one human being.
- jjav 2y ago> Let’s wait until we know more details of what happened. Yes, there are some unknowns here, would be great to find out all the details. > This could’ve been the trucks fault, or it could’ve been the driver falling asleep and blaming the truck. But based on the facts known so far, we know this is not it. The driver was braking hard given the locked rear wheels.
- XenophileJKO 2y agoI don't think we know the facts. Are there good forensic photos of the accident? I saw the video and it was hard to see any details other then the truck running up the driveway. For example I'm really interested in how they determined that the "back" tires were locked. The back axle has 2x the power of the front in the Cyberbeast. The suspicious part is the the driver said the steering was non-responsive. Without better information, I suspect either user or system failure with full throttle and brakes causing the front wheels to lock up (because they have more brake force and half HP) causing the loss of steering and back wheels overpowering brakes.
- 2y ago
- silverquiet 2y agoIt just occurred to me that this should be possible in a front wheel drive vehicle with the parking brake applied but for some reason the rear wheels still roll if you forget to release it. Not something I’ve ever tested on purpose though.
- Kye 2y agoI'm no fancy automotive engineer but it seems like there's no reason the brake shouldn't directly break the circuit supplying power to the wheels.
- sn0wf1re 2y agoIt's a legal requirement for motorized bicycles in BC (Canada), crazy that it isn't a requirement for automobiles.
- ulfw 2y agoThere seem to be barely any legal requirements for Teslas in the US. The Cybertruck as is wouldn't be legal in the EU (and hence is not sold). How the lack of indicator stalks is legal is beyond me, as is the utter lack of buttons or the lack of speed indication in a driver's line of sight. The behaviour of using a screen with submenus to setup things while you're driving is madness if you think about it. We're not allowed to use our touch screen phones while driving but are allowed to use a touch screen bolted-on touch screen.
- buffington 2y agoI’m currently renting a new Ford F-150 ICE truck and all of its UI is controlled through the enormous touch screen. There are physical buttons too, but they’re just remote inputs to the central UI. It also has a video display behind the steering wheel, where half the display is dominated by a menu, and gauges are displayed on either side of the menu. You can barely see the speedometer. I own a Tesla Model 3, and have ranted about how awful its touchscreen only control is bad for ages, but the Ford is significantly worse. Just today, the truck’s UI bugged out in such a way that half the exterior lights were blinking, while a period bell sound would blast every few seconds. A message on the screen complained that the car “needed to be running to…” with the rest cut off by a nondescript grey square.
- me_me_me 2y agoI dont remember who was it, but a guy on yt tried to find pedestrian crash test for cybertruck, finding out that US has no such requirement at all.
- rasz 2y ago>dragged ~50 feet "2024 Tesla Cybertruck Dual Motor Foundation Series Specifications 0-60 MPH 3.8 sec BRAKING, 60-0 MPH 126 ft" Car accelerated ~~2/3 of the way on the video~~ Edit after re-watching: car was floored downhill with slight wheelspin for 8 seconds, it was slowing down when you can hear screaming tires for less than 2 seconds. Looks to me like it was fully braking after all, after someone decided to floor brand new 4 second to 60 EV vehicle into a building and shat his pants.