JeffK
Well-Known Member
If you head is over there in a crash, then it probably isn't attached to your body anymore....
Wear a seatbelt and you don't have to worry about it (unless your head falls off).
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Wear a seatbelt and you don't have to worry about it (unless your head falls off).
stopcrazypp
Well-Known Member
It doesn't really make a difference, an unrestrained passenger can also hit the steering column on the side if there is a side crash by the same standard.
FlatSix911
Porsche 918 Hybrid
The safety issue regarding the display is absurd. Take a look at this crash test video of the Model X. Around the 20 second mark you'll see that the airbag deploys long before the driver's head can reach the steering wheel, let alone a center mounted screen which is farther away. Granted, this isn't the Model 3 but I'm sure it will behave similarly. If there were no airbags then sure, there might be a need for some concern. But airbags totally eliminate it.
Oh there is a valid safety concern alright - not for the passengers but the screen itself. The basics of physics for that screen mount says various point will experience quite high forces in daily use. Won't be surprised if after a couple of years, cracks start to appear here and there.
Waiting4M3
Active Member
"But, what about ..."
fill in your blank here with baseless conjecture on supposedly bad design that no one has actually used in person yet
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Waiting4M3
Active Member
Wouldn't be surprised if cracks don't appear. There is this thing called engineering, and people study it, and apply it. Sometimes things go wrong but most of the time things get made right. Lets give a little respect to the professionals, shall we?
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JeffK
Well-Known Member
stopcrazypp
Well-Known Member
Not seeing it. The screen will be used for finger touch and that is basically it. I don't see how it will experience high forces in daily use.
The steering column experiences a ton more force (twist from steering, toward dash from pushing on horn, downward from resting hands, upward left or right when kneeing with legs) but I have yet to hear of cracks appearing.
I had a Nissan Quest which had a central speedo and nothing in front of the steering wheel except storage. I had no problem with it. However, apparently most people did because Nissan went back to a traditional speedo behind steering wheel after a couple years. It seems like some manufacturers toyed with the central speedo idea only to revert to traditional after some time. I wonder how successful Tesla will be with it this time.
BluestarE3
Active Member
Although Toyota has stayed with their implementation on the Prius for two decades. I guess it depends on how wildly popular the Model 3 will remain after the pent up reservations have been delivered. New buyers will know exactly how the production version will look, so they won't be subject to wishfully hoping for a "spaceship" or HUD instead of just the single, central display. If it sells well, it will become the new norm that others will try to emulate.
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Sorry mate I am a research engineer myself so I would know the basics - at least one would hope, and it's not a question of respect. The basics of physics is well understood, from theory to practice. Most of these things can be analysed exhaustively through virtual simulation tools even before the first samples are produced. There is no need to make basic mistakes and fix, engineering brain cycles are better utilized elsewhere. Get a few kids in this car and one of them will try to pull it out with force. Drop something on the floor and someone could pull against the screen while picking up. Forget the textbook use case, these cars will be daily workhorses. It might still survive but it's not a well thought of contraption from a structural point of view and that is my point. It will also be poor from a vibration point of view, try Google vibration theory of cantilever beams.
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Waiting4M3
Active Member
Do you have any valid reason for this second guessing?
Edit: and I just want to point out that me doubting your judgement is no different from you doubting Tesla engineer's judgement.
JeffK
Well-Known Member
You say this and in the same breath disrespect Tesla engineers who have excellent modelling tools and years of experience in various industries.
Exactly!
JeffK
Well-Known Member
Haha actually I'm using the same logic on the performance version. I'll let these RWD beta testers find any flaws first.Hey, I get mine 18 months from the first deliveries so mistakes will be long fixed by then
N5329K
Active Member
I can think of one possible reason why an outside engineer might have a different and perhaps clearer perspective: he doesn't have Mr. Musk telling him to "make it so."
It depends on the engineering culture but saying, "No, that's not optimum," might be (a lot) harder for a Tesla engineer. Other than that, physics and materials are physics and materials.
Robin
sperkin
Active Member
Thanks for the video and now I'm 100% sure the LCD screen in the RC is not final. Take a look at the right hand during the crash. Say goodbye to your right hand in a Model 3 if you get in a crash if the LCD screen is there. Take a look at side impact and overlap videos and they all show the right hand swing.
stopcrazypp
Well-Known Member
What are you talking about? The right hand moves forward and smacks the dash (and the top left of the screen). With the Model 3 design, it would either smack the dash or the front of the screen going forward. Not seeing how that will take your hand off? It's not like the screen is a knife.
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