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Tesla Unveils 500-Mile Range Semi Truck, 620-Mile Range Roadster 2.0
Rei writes: During a live reveal on Thursday, Tesla unveiled its new electric Class 8 Heavy Duty vehicle. As most people familiar with Tesla products would expect, the day cab truck features staggeringly fast acceleration for a vehicle of its size. It can accelerate 0-60 in 5 seconds without a trailer and 20 seconds with a 40-ton gross weight while being able to pull its maximum payload up a 5-degree grade at 65mph (versus a typical maximum of 45mph). The 500-mile range is for the vehicle at full load and highway speeds (80% of U.S. freight routes are 250 miles or less). Tesla also boasts a million mile no-breakdown guarantee; even losing two of its four motors it can out-accelerate a typical diesel truck. The total cost per mile is pegged at 83% of operating a diesel, but when convoying is utilized -- where multiple trucks mirror the action of a lead truck -- the costs drop to 57%, a price cheaper than rail. Tesla went a step further and stole the show from their own event by having the first prototype of the new Tesla Roadster drive out of the back of the truck. With the base model alone boasting a 620 mile range on a 200kWh battery pack with 10kN torque, providing a 1.9 second 0-60, 4.2 second 0-100, and 8.9 second quarter mile, the 2+2-seating convertible will easily be the fastest-accelerating production car in the world. Top speed is not disclosed, but said to be "at least 250mph." The vehicle's release date, however, is not scheduled until 2020.
Energy consumption is stated at "under 2kWh/mile", which is reasonable. So a 500 mile range would be a 1MWh battery pack. The larger the battery pack, the more you approach individual cell energy densities, so they're probably getting around 200Wh/kg. Hence the battery pack (the heaviest portion of the tractor) probably weighs around 5 tonnes. Given that a typical semi tractor weighs about 8 tonnes, the two should be comparable.
We gotta go to a crappy town where I'm a hero.
Electric wins *more* in hilly terrain because it can climb grades faster, and regens on the downslopes.
Salt isn't going to attack electric vehicle tractors any more than ICE tractors. And the vehicle uses a smooth belly pan anyway, it's not like the underside is a bunch of exposed wiring.
Batteries that are discharged over the course of 7 hours are not "stressed". And Tesla batteries have superb longevity (check the charts/graphs tab).
We gotta go to a crappy town where I'm a hero.
"Someone on youtube commented that the batteries add about 20,000 or 40,000 lbs extra weight compared to a diesel truck. That will reduce the total capacity of payload these trucks can carry, won't it?"
That's why they removed the large Diesel motor, the transmission, cooling, fuel and water tanks .....
Also I read a few days ago, that some mining companies use giant electric trucks to move 60 tons of materiel down the mountain (generating electricity) and empty back up the mountain, so they generate more energy than they use.
They have to go to the power outlet only once after each shift, not to load, but to _unload_ their surplus electricity.