Chevrolet exits all ICE production by 2035
Chevy exits ICE engines Hopefully the other manufacturers won't follow suit. Being from Texas and starting to thaw out from our latest freeze of the century, I don't see how our current power g...
Forum Discussion
wnjj wrote:RoyJ wrote:
Still don't see how an 80k lbs semi can go 600 miles on a 1,000 kWh pack.
It’s likely because power demand doesn’t go up directly with weight but rolling resistance. More weight means some more rolling resistance on the bearings and tires but mostly it costs you on hills, where a regenerative system pays you back on the downhills. In other words, an 80k semi doesn’t take 4x the power of a 20k RV.
I definitely agree it's not linear, no where near 4x the power. But I also don't think is so non-linear that we can have:
- 900 Wh / mile for a 5,400 lbs Model X towing 4,600 lbs trailer
- 1667 Wh / mile for a 25,000 lbs semi towing 55,000 lbs trailer
In other words, only 85% increase in power, for 8x increase in GVW, and much larger frontal area.
The latter is what the Tesla semi needs to hit 600 miles on a 1000 kWh pack.
