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VW Passat GTE
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676 Posts
Let's do a little man maths...
  • 90 miles from 24kWh = 266W/mile
  • Randomly googling around, the blower motor in a Jetta consumes between 3.8A and 19.8A: Blower motor draw
  • Assuming it's 12V, that's 45.6W to 237.6W.
  • With the fan running, your consumption is now between 311W/mile and 504W/mile.
  • With a 24kWh battery, that's a range of 47.9 miles to 77.2 miles.
So yeah, seems reasonable.
 

· Registered
VW Passat GTE
Joined
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676 Posts
Good analysis but some units are off. Only about 21.5 kWh is usable (when new). Also, 266 Wh (Wh not W) is a bit of a rough average. Could be as low as 200 Wh/mile or as high as 350 Wh/mile, depending on how you drive. Assuming 266 Wh/mile average efficiency, if the fan uses 235 W, and is running for an hour, that means it consumes 235 Wh but the per mile usage depends on how fast you drive. If you average 50 mph, then the fan adds 4.5 Wh/mile. The fan itself is a small energy use compared to the PTC heater, which is rated at 5000 W.
Yup, man maths ;)
 
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