Quote:
Originally Posted by hayden55
Do you have a link?
I tried searching it but i only found a study by them on the average life cycle of a car that they used for comparison of life cycle emissions (which i noted they expected it to be 200,000 km or 124,000 mi before dissassembly and recycling). The average here in america for age of car on road is 12.1 years and at 15,000 miles per year average thats 181,500 miles.
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A) MOTOR TREND published data for the R1T.
B) EPA HWY is 66 MPG-e.
C) I'm guestimating that an owner might see the EPA MPG @ 100 km/h ( AeroStealth's 2014 F-150 produced its EPA HWY mpg @ 100-km/h )
D) With a useable 133-kWh, 133,000-watt/h, and 66 mpg= 296.057-miles.
E) 449.237 Wh/mile
F) @ 95% efficiency ,Road Load is 426.77571 Wh/mi, or 35.4835- hp.
G) Estimating a frontal area of 35.212-sq-ft, and 90.933 feet/second, aero power absorption is 17.1854-hp.
H) Subtracting that from Road Load, leaves 18.298 hp- RR left over.
I) @ 90.933 ft/sec, 550-lb-ft/sec/ hp, and 7443-pounds test weight, the Tire rolling force coefficient of 0.014869609 falls out.
So that's where the Cf rr comes from.
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I'll have to look through my rat's nest at home to see about the VOLVO EV SUV research. It was either SAE or Elsevier Publishing where it came from.