"The quickest acceleration—from zero to 60 mph in 20 seconds, fully loaded." sound of cargo falling over :P But serious question: how important is acceleration for trucks?
Tesla Semi
551–560 of 575 posts
Re: Tesla Semi
#552Earlier quoted context omitted.
"Well, it's a fraction of the cost to operate, but if a tire blows, the mechanic will have to detach a piece of plastic. So I think we'll pass."
Don’t worry, when the tire blows it’ll take that fiddly piece of plastic with it. Which I think is at least part of parent’s point.
Re: Tesla Semi
#553Re: Tesla Semi
#554Ok as a mechanic a few million questions: * What happens when a wheel seal goes? Do I have to remove all that ridiculous plastic on #2,3 axels?? * What happens when a tire blows? Is it going to destroy all that plastic and take out a few more tires in the process? * Why all the glass? I've spend entire days replacing windshields for a 12 or so truck shop which generally come in two (drivers and passengers), the Tesla…
Re: Tesla Semi
#555Earlier quoted context omitted.
Then it's dead out of the gate, almost every trucking company in existence does in house repairs due to cost.
Call me a fanboy, but something tells me that the guy who built a revolutionary space program from scratch while successfully running a revolutionary auto company, probably has some ability to think things through pretty comprehensively from all angles and plan effectively for what's needed. Do you think you've just pointed out something that never occurred to him? Do you think if you could share your comments with h…
Re: Tesla Semi
#556Earlier quoted context omitted.
Pretty sure Model 3 production is going amazingly well, yeah. Astoundingly well. But the media's portrayal of it has people convinced otherwise. Let's try this perspective instead: "Decade-old electric car company moves up plan for mass production of new affordable long-range sedan by 2 years" And then ask ourselves, after moving it up by 2 years, does a 3-month delay mean "things are going badly"? If I say I'm going…
> If I say I'm going to leap 500 feet, and then I leap 450 feet, do you say I failed? Yes, that's what the word failed means.
Re: Tesla Semi
#557Earlier quoted context omitted.
> If you check out the reveal, you'll see that it doesn't have those rediculous covers https://tctechcrunch2011.files.wordpress.com/2017/11/tesla-s... ? I'm not sure what you mean. Looks about the same as the linked page to me. > nor does it have near zero clearance between the cab and trailer which would prevent articulation, and nor does it have near zero ground clearance. https://i.imgur.com/cECtzId.png https://i.…
Odd, the article I read had this image: https://c1cleantechnicacom-wpengine.netdna-ssl.com/files/201... (or one like it), and looking at the video, it seems they had both on stage? Are there two models? It didn't seem to be discussed.
Re: Tesla Semi
#558Earlier quoted context omitted.
Is that possible? Assuming 500 miles of range at 2kwh a mile is a 1000kwh battery, charged over 30 minutes, is 2 megawatts, if the voltage is the same as the supercharger (480V) requires 4000 amps...
Google says your average powerline carries 10k amps.. so it seems within reason, but it would require some power upgrades ;)
Re: Tesla Semi
#559Earlier quoted context omitted.
30 square meters, laying flat. So maybe 3kW. While the engines need more like 100kW. You can't effectively power any vehicle with 15% efficient solar panels.
No, but you can improve the range by a few percent.
Re: Tesla Semi
#560Earlier quoted context omitted.
There will always be situations where you can no longer recover energy, fully electric or hybrid. Your battery could be full, or overheating. At that point, you have to waste the energy. I believe the normal way to handle this scenario is to just fall back to mechanical braking.
Why do most/all electric and hybrid cars have regenerative braking while ICE cars don't? It's because, as the GP said, the battery would be quickly topped up and extra energy wasted. Only electric vehicles doing frequent stops/downhills can make productive use of regenerative braking. Potential energy lost by a truck going 10 m (vertically) downhill: 40 000 kg * g * 10 m = 4e6 J. Capacity of car starter battery: 40 A…
https://arstechnica.com/cars/2017/09/this-cement-quarry-dump...