power facts from the tesla roadster
DESCRIPTION
A good review of what the Tesla roadster delivers using current battery technology and no gearbox. Although not yet at the levels I would hope for a car that would be deemed attractive by fellow European motorists, maybe this is close enough to suggest the goal is not that far any more.TRANSCRIPT
Power facts in electric cars
From Tesla Motors’ Roadster185 kW 0-14’000 RPM
one speed gearAll data from the Tesla users blog
Power required vs. stable speed
Europe’s Europe’s highway highway speed rangespeed range
Energy absorbed per mile vs. speed
From 18 kWh/100 km @ 105 kmh
Up to 25 kWh/100 km @ 140 kmh
Range vs. stable speed
Current capabilitiesCurrent capabilitiesFrom 210 to 290 kmhFrom 210 to 290 kmh@ EU highway speed@ EU highway speed
Better here:Better here:400 to 500 km 400 to 500 km range @ EU range @ EU highway speedshighway speeds
Sources of energy loss
Air conditioning…
« Sweet spot » of performance« Sweet spot » of performance@ 50 kmh@ 50 kmh
Aerodynamic dragAerodynamic drag