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[BI] Tesla's semi truck can be driven around 'like a sports car' - Page 29

post #281 of 334
True that. They also have miles and miles of nothing but miles and miles. Their railroad trains are often miles long.
     
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post #282 of 334
Quote:
Originally Posted by prjindigo View Post

This is stupid because the average 500hp tractor can be driven around like a sports car at speeds under 15mph all day.

What we need is a Tesla Model P for the Redneck Olympics.


I wanna see one stuck in a mud bog

To speak a little seriously to what you are saying; a good friend of mine has a something near 900 HP/1,100 Torque truck he does mud drags in, the damn thing is bonkers! To that point, Elon stated in the video that the Tesla Semi in a tug-of-war with a diesel the Tesla would pull the diesel...up a hill.
    
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post #283 of 334
Quote:
Originally Posted by PostalTwinkie View Post

To speak a little seriously to what you are saying; a good friend of mine has a something near 900 HP/1,100 Torque truck he does mud drags in, the damn thing is bonkers! To that point, Elon stated in the video that the Tesla Semi in a tug-of-war with a diesel the Tesla would pull the diesel...up a hill.

Tugs are all based on traction. Torque, while obviously very important, is secondary.
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post #284 of 334
tracks are best for tugs, tires simply slip no matter how big it is.

Torque actually holds a lot of meaning in a tug of war, simply put its the main thing that decides how much peak power can be put at the moment of pulling.
post #285 of 334
Quote:
Originally Posted by epic1337 View Post

tracks are best for tugs, tires simply slip no matter how big it is.

Torque actually holds a lot of meaning in a tug of war, simply put its the main thing that decides how much peak power can be put at the moment of pulling.

Of course, but assuming remotely similar torque traction rules. 1,500 lbs of torque will lose to 500 lbs of torque if traction is not there. More tq less traction, typically. Gotta have a really good surface and great rubber.
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post #286 of 334
Quote:
Originally Posted by SoloCamo View Post

Of course, but assuming remotely similar torque traction rules. 1,500 lbs of torque will lose to 500 lbs of torque if traction is not there. More tq less traction, typically. Gotta have a really good surface and great rubber.

Do you for a moment think the people designing this truck don't know things like this?

As the prototype truck currently sits it can out-haul by weight, ease, and range any diesel truck - per Musk. It will take heavier loads, longer distances, without the same kind of struggle as a diesel when it comes to hills, acceleration, etc. On top of having all the nice things like pretty much driving itself at highway speeds.

More broadly to the thread; even ignoring what Musk says about the future of ICEs vs EVs, every other expert agrees that EVs will take over. The industry is already tooling for that to happen at the expense of several billion dollars.

Don't worry, we still get to keep our ICEs because someone has to shake the Prius windows at the red lights!
    
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post #287 of 334
Quote:
Originally Posted by Mand12 View Post

It's called a tractor because its purpose is to pull something. The agricultural ones pull things too.

What I'd like to know if the things we see commonly on the roads are "semi" trucks, what is a full truck?

A truck that is a full on truck with the cargo area being fully integrated into the truck itself and not reliant on a trailer? I would guess the term "semi truck" refers to the fact that without a trailer its not really a fully functional truck.
post #288 of 334
yes, semis and fulls are practically the same thing, the only difference is that one is detachable while the other isn't.
post #289 of 334
Quote:
Originally Posted by PostalTwinkie View Post

Do you for a moment think the people designing this truck don't know things like this?

As the prototype truck currently sits it can out-haul by weight, ease, and range any diesel truck - per Musk. It will take heavier loads, longer distances, without the same kind of struggle as a diesel when it comes to hills, acceleration, etc. On top of having all the nice things like pretty much driving itself at highway speeds.

More broadly to the thread; even ignoring what Musk says about the future of ICEs vs EVs, every other expert agrees that EVs will take over. The industry is already tooling for that to happen at the expense of several billion dollars.

Don't worry, we still get to keep our ICEs because someone has to shake the Prius windows at the red lights!

I don't think the engineers you mention are engineering for tug of war competitions between two trucks. I wasn't talking about hauling or what Musk mentioned at all. Tug of war is completely pointless and only makes everyone go home with damaged drivetrains.
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post #290 of 334
I've been around trucks most of my life... while I find this interesting to say the least I personally have a tough time swallowing this as a feasible investment...

1. Short Distances I think these will do good, and would preform well both economically and overall driveability.
2. Flat terrain I think this would also be a benefit (well aware of the torque in a servo) but the more flat an area the more mpg a car gets, well same applies for a EV... all those hills especially with a load on would drain that battery very fast.

Pulling 80ton up a 6% grade 6 miles, for example... well lets just say you're making no land speed records. smile.gif

3. Weather, always a huge factor, and frankly why I don't buy into the whole "it can drive itself thing." in normal conditions sure I get it, but put 2" of ice on the road, and 6" of snow on top of that, with more idiots out there then you can count... well lets just say I'm white knuckled to begin with, but driving in conditions like that, requires a certain finesse, and knowing every little blurp about you're rig. something I would think a computer could not understand. Frankly I don't expect some people on this forum to understand that statement, but unfortunately I can't really explain it further or in more detail. LOL

Driving a truck like a sports car, well I really laughed at that one. If I saw a trucker driving a truck like that, well I certainly would **** of his way LOL. in all seriousness any professional driver treats their rig like a baby, why? because it's their livelihood! doh.gif not to mention the contents need to get from point a to point b unharmed. smile.gif

besides imo diesel is the way to go, most vehicle manufacturers should have done this years ago not just with full size pickups (for example), but as an option for most models of any vehicle. of course you got them bad apples... black smoke spewing out as some jack-wagon floors it and cuts you off. this demograph typically has the "bulls nuts" hanging from the trailer hitch, and a sticker in the back saying "prius repellent" with arrow pointing to his oversized straight stacks in a short bed pickup... imo that is just as annoying as the riceburner with the megaphone muffler.
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