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but you see, that the losses with the tires are almost constant, but aero goes up with square of speed
...What really puzzles me is the HVAC. Why is wh/mi less for city than highway? If they HVAC output is set the same (maybe that's a bad assumption?) you'll use more energy per mile at lower speeds, but the chart shows the opposite.
I'm still trying to sort some of that out, too. The information presented seems to be similar to what's in the third chart in this blog: Roadster Efficiency and Range | Blog | Tesla Motors
The aero drag does seem to be about what that chart shows for 55mph. But the tire friction seems notably higher at either speed. Drivetrain seems a little higher (if you add all the pieces together in the older chart). Maybe it's updated for Model S instead of the Roadster?
What really puzzles me is the HVAC. Why is wh/mi less for city than highway? If they HVAC output is set the same (maybe that's a bad assumption?) you'll use more energy per mile at lower speeds, but the chart shows the opposite.
Anyone have any comparative data on tire choice? I just swapped the rears for 225/45R-17 Michelin Primacy MX. They claim lower rolling resistance but what does that mean?
It means they are very resistant to rolling.
Huh? The opposite... They roll more easily. I don't know if either of you are joking.