12-23-2017, 09:24 PM
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#61 (permalink)
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EcoModding Lurker
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Since range is such a sticking point for EVs, especially with these big rigs, they really could benefit from a transmission, even if it's just a simple 2-speed DCT to switch over at highway speeds. I understand why they don't have them now, from a marketing standpoint, since simplicity, cheapness, and low maintenance/downtime sells in this case (especially for brand unity within transmission-phobic Tesla), but they really should include one when they make the sleeper cab version for the longer hauls. On those dedicated highway haulers where acceleration matters less than on these short-route trucks they might offset the cost/weight of the DCTs by nixing two of the four Model3 motors and adding a couple of differentials (still wouldn't have major power losses since it wouldn't have the hypoid gear). Maybe I'm being too idealistic, expecting too much from a startup poking its head into B2B, but the thought of all these huge motors running at unnecessarily high RPM at speed after pouring in current to accelerate with high slip just hurts my soul.
https://www.researchgate.net/profile...y-Recovery.pdf
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12-23-2017, 11:32 PM
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#62 (permalink)
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Master EcoModder
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If they in fact use a standard Tesla 'big block' they they would gain efficiency by using Quaiffe limited-slips instead of doing torque vectoring with the brakes.
The RPMs are not unnecessarily high, there's no herky-jerky motion as with a reciprocating engine. A Tesla motor takes 15 minutes to spin down on it's own.
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09-10-2019, 03:57 PM
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#63 (permalink)
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Not Doug
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Tesla has 1,000,000-mile and 20-year battery technology
This is a different type of battery than they have used until now. This is supposed to be a big deal.
https://www.teslarati.com/tesla-semi...e-battery/amp/
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09-10-2019, 05:40 PM
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#64 (permalink)
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06-27-2021, 11:15 AM
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#65 (permalink)
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Corporate imperialist
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I'm going to have to agree with Paul mason on this one.
His tractor trailer numbers are fairly close, a day cab truck can haul about 25 tons, yah that's fine for local, useless for long distance.
I was thinking a tesla truck battery would reduce capacity from 20 tons to 10 to 15 tons, Paul thinks it will be reduced to 5 tons. Hey what can I say I'm optimistic.
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06-27-2021, 01:39 PM
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#66 (permalink)
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This is how they could drastically increase the passenger capacity of that boring loop:
It takes ten times as many passengers as a Tesla model X but doesn't cost more. (and goes about the same speed as they drive in those tunnels!)
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06-27-2021, 03:51 PM
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#67 (permalink)
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I still think the Semi would be a good platform for a Presidential Limousine.
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06-28-2021, 04:18 PM
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#68 (permalink)
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Human Environmentalist
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I think a Toyota Camry would be a good platform for a presidential car.
If I owned a business that transports cash, it would utilize normal SUVs of various types so that they would be inconspicuous. That's way more important than being armored.
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