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General Category => Electric Motorcycle News => Topic started by: nigezero on November 17, 2017, 02:49:22 AM

Title: Other EVs: Tesla Truck and Roadster 2.0
Post by: nigezero on November 17, 2017, 02:49:22 AM
Tesla are about to launch an incredible all electric truck. Doubling production volume of batteries and motors reduces cost by 19% according to Moore’s Law, and this article is a decent analysis of where they are at; extremely cool.

Seems to me that this is where Zero are stuck - until they can seriously ramp up their volumes growth, prices aren’t going to change much.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: nigezero on November 17, 2017, 02:50:27 AM
http://www.afr.com/business/transport/trucking/teslas-truck-is-about-to-be-revealed-heres-what-it-must-do-for-truckers-20171115-gzmbmn
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: togo on November 17, 2017, 03:36:08 AM
> Seems to me that this is where Zero are stuck - until they can seriously ramp up their volumes growth, prices aren’t going to change much.

Some truth to that, I guess.  Battery supplier Faresis does also supply forklift manufacturers, so they benefit from that volume as well, but nothing like the kind of explosive growth the automobile or trucking industries can offer.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Richard230 on November 17, 2017, 04:54:50 AM
Tesla are about to launch an incredible all electric truck. Doubling production volume of batteries and motors reduces cost by 19% according to Moore’s Law, and this article is a decent analysis of where they are at; extremely cool.

Seems to me that this is where Zero are stuck - until they can seriously ramp up their volumes growth, prices aren’t going to change much.

I don't think Moor's Law applies to batteries and motors, just computer circuits.  ???
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: 42Cliffside on November 17, 2017, 06:11:47 AM

Well, there is this:

Electric vehicle battery cost dropped 80% in 6 years down to $227/kWh – Tesla claims to be below $190/kWh
https://electrek.co/2017/01/30/electric-vehicle-battery-cost-dropped-80-6-years-227kwh-tesla-190kwh/ (https://electrek.co/2017/01/30/electric-vehicle-battery-cost-dropped-80-6-years-227kwh-tesla-190kwh/)
Fred Lambert - Jan. 30th 2017 8:43 am ET  @FredericLambert
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: ctrlburn on November 17, 2017, 06:28:51 AM
Each Tesla truck (or Cummings truck) should come with an incorporated electric motorcycle.

( DOT doesn't like strapping a fueled ICE bike on a commercial vehicle. )

Park the Semi at the truckstop and use the cycle for errands and excursions.

I suppose I drove semi WAY before GPS - but wouldn't it be a dream if you didn't know exactly where the destination and loading dock was, you could park the truck, easily hop on a Zero (or Brammo for Cummins) and zip ahead and plan your route?     

Or looking for your trailer at a 100 acre drop yard on an FX?
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: 42Cliffside on November 17, 2017, 11:21:04 AM
OMG The trucks, the Green powered MegaChargers at .07 guaranteed...

That Insane 'Base Model' Roadster ... OMG!!! 10,000NM torque
OMG. :o

(https://pbs.twimg.com/media/DOz6iKQWkAAnJjZ.jpg)
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Doctorbass on November 17, 2017, 11:42:34 AM
New TESLA 2.0:

- 1000km at HIGHWAY speed!
- 0-60mph en 1.9 secondes
- 0-100mph 4.2s
- Max speed 402+ km/h
- 3 motors
- 10 000Nm de torque!!!!!! ( 7375 Lb-ft)
- le 1/4 de mile in 8.9s
- 4 seat
New PLAD mode that is higher performance than previous Ludicrous mode

Release date 2019

Bye bye Buggati Chirron, Mc Laren 720s and other petrolosaures!

Doc
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Richard230 on November 17, 2017, 08:36:39 PM
All I can say is that is more than I need.  I am happy to just keep up with traffic and have enough range to get to where I want to be and return home. Plus, I am also happy if the traffic on our freeways is moving at least 30 mph, which has been happening less and less lately. Who needs that kind of performance?  ??? But then I drive a 1999 Saturn station wagon that now has 25K miles on the clock, so what do I know.  ::)
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Doug S on November 17, 2017, 08:57:29 PM
For those of us in the US, that 10,000 N-M of torque translates to 7400 ft-lbs! That really threw me for a minute -- there aren't many drag racers with that kind of torque -- but then I realized it's at the rear wheel, so that includes torque multiplication by the overall drive gearing ratio.

That's still monstrous, but not QUITE as mind-boggling as I thought at first. But 0-60 in 1.9 seconds is a really, really high bar to set for any hypercar now or ever.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Richard230 on November 17, 2017, 09:08:11 PM
For those of us in the US, that 10,000 N-M of torque translates to 7400 ft-lbs! That really threw me for a minute -- there aren't many drag racers with that kind of torque -- but then I realized it's at the rear wheel, so that includes torque multiplication by the overall drive gearing ratio.

That's still monstrous, but not QUITE as mind-boggling as I thought at first. But 0-60 in 1.9 seconds is a really, really high bar to set for any hypercar now or ever.

And how are you going to get that much torque to the pavement - without your very expensive tires going up in smoke?   ???
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Doug S on November 17, 2017, 10:39:09 PM
And how are you going to get that much torque to the pavement - without your very expensive tires going up in smoke?   ???

One of the best things about high-performance EVs is that modulating power to the wheels is trivial. The computer that controls the motors is also connected to the wheel speed sensors, so power to the wheels can easily be controlled to manage wheelspin. Obviously they've got it figured out, with a 0-60 time of 1.9 seconds!
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Aikirob on November 18, 2017, 02:40:04 AM
whats the price of the truck?
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: 42Cliffside on November 18, 2017, 04:07:50 AM
Quote
Obviously they've got it figured out, with a 0-60 time of 1.9 seconds!

That makes everything I've ever seen seem slow. Wow Have your head back indeed Good Advice!.

https://youtu.be/BfDRT_BwkbE

https://twitter.com/UTITweet/status/931645703591309312 (https://twitter.com/UTITweet/status/931645703591309312)
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: NEW2elec on November 18, 2017, 06:50:23 AM
Yeah the race specs are great and all but do you see what I see?

The thing has a 200 kWh battery!
In that tiny package!
Has to be solid state batteries!

It's all coming together.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: grmarks on November 18, 2017, 08:29:50 AM
I disagree, its most likelt Tesla's new cells (in the model 3), look at how hight the door sill is, my gues is 2 layers of batteries under the back seats, 1 layer under the front seats. No one has solid state batteries yet. 
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: NEW2elec on November 18, 2017, 09:27:02 AM
Can't be.  A 100D model S is over 5000lbs this car would be 6500-7000 lbs with double the standard Li-ion cells even with carbon fiber panels and less room.  That thing couldn't corner worth a damn or have a 1.9 0-60 time even with a rocket engine at that weight.

No one has solid state batteries (out) yet.  This is for 2020.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Doug S on November 18, 2017, 10:30:27 AM
All very speculative, but I'm guessing grmarks is right. The motor(s) for this car are very small compared to an ICE car, there might not be much if any trunk space on a "roadster", so there might be plenty of space even in such a small car to double, triple, even quadruple up in places. Also, Tesla has invested f-tons of money into their 18650 cell. I doubt they're going to abandon them. The cylindrical cells are also pretty easily water-cooled, which a high-performance EV needs.

And I'm not sure the capacity has to be 200+ kWh either. It's a tiny car, so very small frontal area, and I'm sure the drag coefficient is at least somewhat lower than any car they've built to date. In the name of performance, they've also undoubtedly optimized everything for low resistance current paths, which lead to high efficiency. Who knows how far 150 kWh could take a car that size, that clean and that efficient?
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: NEW2elec on November 18, 2017, 11:35:21 AM
From Elon's mouth "200kWh battery" paraphrased "ample storage space" also a 2+2ish cabin not a true roadster.
Tesla is already past the 18650 for a 2170 cell.  Even if they are much better than the 18650's the size and weight just couldn't work in this car.  Not to mention the discharge rate to for that quick jump and the heat for 250+ MPH I just don't think anything they use now could take it.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Shadow on November 18, 2017, 12:42:31 PM
Watched it. Interesting. Moved topic to /News.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Richard230 on November 18, 2017, 09:08:19 PM
I just saw a TV news story about Tesla's all-electric big-rig semi-truck.  The report said that it would be able to travel for 500 miles, carrying a 80,000 pound load at 55 mph on one charge.  And it would also be able to maintain 65 mph uphill, fully loaded, and its 0-60 time would be twice as fast as a diesel-powered big rig. It seems doubtful to me that they would be able to get that kind of performance and apparent power density from the cells currently being manufactured in their new "gigafactory".  ???

Frankly, I am amazed at those claims.  :o  Can you imagine the amount of battery power that truck must be carrying, what the batteries must weigh and how long they would take to charge, or what kind of infrastructure it would take to charge them quickly (downtime is really important to a trucking company)? 

The news report said that Walmart had already ordered 15 of Tesla's new trucks, even though no purchase price for the truck has yet been announced.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Alan Stewart on November 19, 2017, 01:41:22 AM
Compare the original Tesla Powerwall (18650 cells) versus the new Powerwall 2 (2170 cells and next generation packaging):

6.4 kWh vs. 13.5 kWh (2.1x)
214 lbs vs. 265 lbs (1.24x)
12,558 cu in vs. 8,207 cu in (0.65x)
$3000 vs. $5500 (1.83x)

More than twice the capacity, only a quarter heavier, only two thirds the volume, and cheaper per kWh too. It’s obvious how the 200 kWh Roadster battery is possible. (Though some of the volume difference is due to the change to rectilinear form instead of the original more curvilinear design.)
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: 42Cliffside on November 20, 2017, 03:32:08 AM
Quote
Can you imagine the amount of battery power that truck must be carrying, what the batteries must weigh and how long they would take to charge

-I've seen estimates of 800kWh on board smaller options avail

-400 miles in 30 min as your truck loads/unloads or at other MegaCharger stations

-1.6MWh charger at a promised price of $0.07/kWh sourced green for tesla trucks

https://cleantechnica.com/2017/11/17/tesla-semi-8-charger-holes-800-kwh-battery-tesla-megacharger-1-6-megawatts/ (https://cleantechnica.com/2017/11/17/tesla-semi-8-charger-holes-800-kwh-battery-tesla-megacharger-1-6-megawatts/)
(https://c1cleantechnicacom-wpengine.netdna-ssl.com/files/2017/11/Tesla-Semi-Charging-Port-KManAuto.jpg)

as for ease of maintenance, here is the Entire drive train, 2 engines/gearboxes per axle unit. Super clean for a manufacturing prototype.

https://www.youtube.com/watch?v=fMctLIU1Eus
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: ESokoloff on November 20, 2017, 04:54:55 AM
Yeah the race specs are great and all but do you see what I see?

The thing has a 200 kWh battery!
In that tiny package!
Has to be solid state batteries!

It's all coming together.

I'm guessing this pre-production car does not have Solid State battery's as those are a few years out.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: NEW2elec on November 20, 2017, 06:45:17 AM
I'm only using critical thinking here.  I was under the impression the S already used the 2170 cells.
So doubling that battery weight would have killed the roadster.  If they can get a 200kWh in that small space with just their 2170 cells (that are cheaper) why in the world are they not in the S and X models now.  If you can get 200 in the roadster put 500 in the S already, it's R&D is done just throw in those new cells.

It was for that reason that I feel the roadster has more advanced cells than even the 2170s.

And for the record I want one very very much.  I did click the "reserve one" button but backed out since I figured I would have to live in it.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Alan Stewart on November 20, 2017, 08:59:46 AM
Than Model S and X still use 18650 cells. as I recall improved packaging and cooling made the 100 kWh versions possible. The Model is the first car to use the new 2170 cell.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: Doug S on November 20, 2017, 08:59:31 PM
And for the record I want one very very much.  I did click the "reserve one" button but backed out since I figured I would have to live in it.

lol I was telling my gf about it this weekend, and she (not surprisingly) said she just didn't understand the need for that much power and torque when the top speed allowed just about anywhere in the US is 75 mph.

Of course she's right. And of course that doesn't mean I don't want one. But yea, it might have to wait until I earn my fifth million bucks or so.
Title: Re: Other EVs: Tesla Truck and Roadster 2.0
Post by: NEW2elec on November 27, 2017, 07:57:36 AM
For the record Bloomberg thinks something is up too.

Search for this article:   Tesla’s Newest Promises Break the Laws of Batteries