Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Search results

  1. D

    Review: Hankook iON evo AS vs Pirelli AS+ Elect vs Michelin PS 4S vs Michelin PS AS 4

    Do you have the summer iON or All season?
  2. D

    Review: Hankook iON evo AS vs Pirelli AS+ Elect vs Michelin PS 4S vs Michelin PS AS 4

    I think it's now clear that with the iON EVO, Hankook is joining the top league of tire makers---Michelin, Bridgestone, Continental & Pirelli.
  3. D

    Review: Hankook iON evo AS vs Pirelli AS+ Elect vs Michelin PS 4S vs Michelin PS AS 4

    At Discount tire online I see Bridgetone Turanza EV and Hankook iON AS SUV as (US) all-season EV specific tires.
  4. D

    FSD beta v12.3 pulls the ultimate April Fools joke

    It followed a path which would be OK (starting out) for a Model 3 in California. Maybe other states have sharper turns or build their intersections somewhat differently, or the curbs look different in some as yet not understood way. It's still a very small minority of turns and so from...
  5. D

    FSD beta v12.3 pulls the ultimate April Fools joke

    Also I wonder about the rate of hitting the curb in California vs outside California. Nets make assumptions all the time. I have a 3 in CA and little problem---but that's where the data set is concentrated.
  6. D

    FSD beta v12.3 pulls the ultimate April Fools joke

    I have a hypothesis. Are all the reports of curbing wheels from Model Y & X? There is a major influence of Model 3 training data of course. The path charted by Model 3 from human drivers is not always acceptable for Y and X as they are wider, but the FSD system might not take that into...
  7. D

    Review: Hankook iON evo AS vs Pirelli AS+ Elect vs Michelin PS 4S vs Michelin PS AS 4

    The standard size for Y LR recently is 255/45R19, not 245. There appears to be a PZERO PZ4 104Y in 255/45R19. It appears to be a summer tire. https://www.pirelli.com/tires/en-us/car/catalog/product/new-p-zero/255_45-r19/104y-xl-tesla-elect-pncs?frontId=3980400
  8. D

    Review: Hankook iON evo AS vs Pirelli AS+ Elect vs Michelin PS 4S vs Michelin PS AS 4

    It is available in North America in a few places (search for IK01 code not IH01 code). example: https://simpletire.com/brands/hankook-tires/ion-evo-ik01 The AS version has a 50k mile treadwear warranty, but the summer version has none, despite being at the same price. That says to me that...
  9. D

    Sleeping with the Enemy!!

    You will probably sell most of the ICE cars as they consume insurance, fuel and registration money. If you're considering this, then do it sooner rather than later. I had an EV and ICE simultaneously for a while. Should have sold the ICE immediately---it stopped passing smog and became a...
  10. D

    Is all neural networks really a good idea?

    With their existing/previous rule-based driving system there is some sort of underlying optimization problem and scoring of preferred paths and it simulated these and had rules to choose/filter them. They could run that off-line back in the lab (with higher fidelity as well) and find segments &...
  11. D

    Is all neural networks really a good idea?

    That may be possible but the shared configuration would be the lowest common view of these and not the highest performing. They must do something like this to some degree as 3 and Y training are shared with otherwise identical cameras but higher forward camera position on the Y. Supposedly the...
  12. D

    Is all neural networks really a good idea?

    I think the second is standard. It has the problem that the representations for perception were human decided and not necessarily optimal for control, so if the human-decided perception dimensions are insufficient for good driving performance the system will not learn to fix it. It's not...
  13. D

    Is all neural networks really a good idea?

    Its pretty shocking they haven't added more cameras---the usual position other makers use is outboard on the mirrors which can give a great view in many directions, close to what you suggest. And it's useful for looking down for parking/curbs/children and human use as well.
  14. D

    Is all neural networks really a good idea?

    It is behaving as I would expect. As a L2+ driving assistant it feels more natural, more human like (except at stop signs where they mandated by government unrealistic behavior), but it makes mistakes that the previous rule-based system did not, particularly about driveable areas as sometimes...
  15. D

    FSD beta v12.3 pulls the ultimate April Fools joke

    Training set problem. It was obvious from first glance this wasn't in California, which will be the majority of train set so far. In CA there very rarely are streets where the curb narrows in significantly right before the turn (or there would be lines painted for the parking spots or turns)...
  16. D

    FSD Beta 12.3 GA

    12.x still has old technology on divided highways, and isn't any better. Only slower street driving is on the new neural network planning technology, and works better (though with new problems) than before. Also what you show is a problem with bad mapping and maybe inaccurate GPS. If you set...
  17. D

    Most efficient tire?

    Yes, but USA all-season aren't really winter tires as you would know them. They're harder than USA-summer tires (which are soft for performance at higher temperatures) to last longer, but have more grooves and sipes for slight winter grip. I believe they use more synthetic compounds for...
  18. D

    Most efficient tire?

    The link is about the summer version. I haven't seen quantitative results on the North American all-season version, which is no doubt tuned more to efficiency and less to performance.
  19. D

    Most efficient tire?

    Yes it looks excellent and achives its goals. I wish USA had objective required tire ratings like EU, particularly for numerical rolling resistance (the number is more informative than 5 letters).
  20. D

    Most efficient tire?

    Apparently, but only in one size: 245/40ZR20 XL 99Y It must be a one-off OEM for an EV. It's the only time I think I see them in USA. My previous car BMW i3 had a summer eco tire, and it was also a rare OEM in a ridiculous size. (On the i3 they attracted damage terribly, I replaced many without...
  21. D

    Artificial Intelligence

    There's no doubt that OpenAI put the good stuff outside of Microsoft's rights. Just like 1990 when IBM thought they had all the rights to PC-DOS and was developing OS/2 with MSFT while in fact Microsoft secretly was snaking them.
  22. D

    Autopilot is useless on non-highway roads.

    Phantom braking is also a function of road type and weather. Hot weather making mirages, or altitude undulations, on a long straight road with little traffic (e.g. summer interstate travel in low density areas) is most likely to cause PB.
  23. D

    FSD v12.x (end to end AI)

    I think they'll have to go to having fleet-wide mapping and routing from human driven data, but then not use that too literally in the navigation path (don't force it as the actual path) but only as another input to the neural network planner and router, and train all of that with realistic...
  24. D

    FSD v12.x (end to end AI)

    This isnt so hard--in theory. The maps have metadata about the lanes in each intersection and where they can turn. Car would have to recognize this sufficiently ahead of time and pre-emptively match the lanes now to the needed lane at the intersection, but it can do some of this already. It...
  25. D

    Artificial Intelligence

    Eldon Tyrell, 2049
  26. D

    FSD v12.x (end to end AI)

    Likely good weather/better road states vs worse weather, ugly roads with poor markers.
  27. D

    FSD v12.x (end to end AI)

    In my case, the freeways I use frequently are true limited access US Interstate (I-5, I-8, I-15) or California state highways, and that was what I was talking about in my experience. There is no "Auto" speed option on the freeway and the feel there is like the previous 11.4.9 version, whereas...
  28. D

    FSD v12.x (end to end AI)

    I thought the V12 only updated the city-streets part with neural network control. The release notes specifically mention "city streets". I received it 2 days ago. Lower speed street driving behavior is obviously completely different, and a significant improvement, by far the biggest change in...
  29. D

    New AutoPilot is horrible after update

    Unfortunate, because the latest 12.3 FSD update is a major improvement (actual improvement contrary to Elon's previous hype) but not yet on highways. I assume it will be soon, and then move to regular AP.
  30. D

    Some new data from research on Tesla model 3 cells

    I think that is mechanistically possibly explaining the origin of the empirical aging ~ sqrt(time) behavior, perhaps a mixture of a few different chemical mechanisms at once. SEI formation: bad (irreversible lithium loss) + Increasing homogeneity (good). you can get full text here...
  31. D

    Some new data from research on Tesla model 3 cells

    It's much easier to test in the lab, and it's important for energy storage and commercial use. I think it shows that a NMC battery used up to 75% is as good as LFP for cyclic aging---and has 25% more peak capacity for occasional bursts. So for energy storage they could use 75% for daily use...
  32. D

    Artificial Intelligence

    If Sam were actually telling the truth: I'm baffling people with bullshit until I win. They'll freak and regulate me before I win. I'm special, very special. I lied, because I wanted to recruit the best from Tesla before Elon realized what we were doing. Same with Apple and Google, suckers...
  33. D

    Electric vehicles release more toxic emissions, are worse for the environment than gas-powered cars: study

    The emissions from battery manufacturing for using recycled minerals will be much less than the raw minerals. Plus there's all the combustion smog and particulates which have major health detriments, directly measurable and real, which are localized to the community and not some far off global...
  34. D

    Artificial Intelligence

    A usual human working environment problem is something like "well what do you think we should work on next?" Ed Witten and Terry Tao have ideas of useful and interesting new research ideas, short and long term. An AI that answers textbook like questions has no idea about that so far. They...
  35. D

    Range Loss Over Time, What Can Be Expected, Efficiency, How to Maintain Battery Health

    The change is regulatory not technological. EPA decided that reported range/efficiency must be average of best and worst modes, not a default.
  36. D

    Toyota Ammonia Engine

    Why? If only the cost of ammonia has significant embedded capital costs which would decline on a unit price level with scaleup. I suspect that's not true, that much of the cost is embedded energy and input materials cost and it's already a major industrialized product with decades of...
  37. D

    Toyota Ammonia Engine

    The only real application of ammonia as combustion fuel is to replace bunker fuel in mid-range oceangoing ships. And even there ports might have problems as leaks could be worse than petroleum.
  38. D

    Artificial Intelligence

    Not quite. Drug development is based on university research which licenses out a patent. But even from there there is a tremendous amount of work needed to push through clinical trials and it starts out as a normal corporation from the beginning. Elon doesn't know anything about AI himself...
  39. D

    Some new data from research on Tesla model 3 cells

    I don't either. Because there isn't any way to set maximum charge limit. And running out of battery capacity is much less predictable, and undesirable. And a new battery is $75.
  40. D

    Mileage lower than expected

    EPA real world is possible with 18" aeros and 3LR, but only with significant city/low speed driving, and little or no stopping and letting the car sit. That's unrealistic---you drive long distances on highway and EPA highway rating should be shown by default and is lower.
  41. D

    What Percent is Your Tesla Charged to While at Home?

    Remember when Tesla says '80%' they say 'up to 80%', not at 80%. So 50%, like how a few of us do here, is within Tesla's recommendations.
  42. D

    Mileage lower than expected

    My guess is that the display, even in UK, is calibrated to to the USA EPA mileage rating. The US rating system is more accurate on average, but the test procedures allow for too much manufacturer discretion and variation vs WLTP. So relative comparison of WLTP is more accurate, but real world...
  43. D

    Some new data from research on Tesla model 3 cells

    The battery management systems on cars are better and don't allow that low discharge which would cause damage. So practically aging happens at higher SOC in cars. I wouldn't be surprised if some phone makers extend the allowable voltage ranges past what is optimal for battery life. There...
  44. D

    Some new data from research on Tesla model 3 cells

    Unclear. You might get less ongoing calendar degradation if you have no liquid electrolyte (but they've gone back on that in research finding solid only is too difficult, so its more of a separator), but as dendrites are always the problem with solid lithium anodes, you will be more likely to...
  45. D

    Range Loss Over Time, What Can Be Expected, Efficiency, How to Maintain Battery Health

    For calendar aging yes and long term use, but cyclic behavior and not needing a tow is a different consideration. Your daily charging habits matter more than long road trip behaviors, unless long road trips are every day. Daily max charge of 50-55% seems to be great. Most people will drive...
  46. D

    Hankook new iON tire, an "EV" tire (not the same as Kinergy GT)

    Pirelli PZero AS Elect. It used to be ~$250 on Discount Tire website near me, and now $212 for 235/45R18. And $80 off temporarily on a set of 4. General GMax AS-07 Nokian One (80k mile warranty)
  47. D

    Range Loss Over Time, What Can Be Expected, Efficiency, How to Maintain Battery Health

    Sure. Set charge limit to 52%. Set off-peak charging, end charging early in the morning. That's it. It has impacted my life exactly 0 times. I have 3.9% degradation after 20 months (extrapolating from miles & state of charge estimate in car). I have seen none obviously apparent in 6...
  48. D

    Range Loss Over Time, What Can Be Expected, Efficiency, How to Maintain Battery Health

    Only for the amount of time above 55%. If it is perpetually above 55% the calendar degradation will be 2x the calendar degradation of below 55%. If you charge to 65% late, and then drive it down, it will less than 24 hrs above 55%. It's not about maximum SOC per day, but continuous time...