GOM seems a bit pessimistic

JamieGeek

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This morning I went for a little drive (100 miles or so, see trip meter). When I left it was -3F out, when I arrived home it was 20F out. Range when I left was showing 180 miles with 100% charged. Reset the Trip 1 meter sitting in the garage before pulling out after preconditioning it for a good 30 minutes.

Lets look at some details:
1613588678763.png

When I got home:
1613588706972.png

Here you see I have 53% battery left which means I used 47% of the battery.

This means I used 88*.47=41.4kWh of electricity.

If I do this: 103.7/41.4 = 2.5miles/kWh...thats funny the trip meter says 2.3.

Using the 2.5 miles/kWh figure means my 100% range should have been 220 miles and my current GOM should be showing 116 miles.

(I'm guessing the trip computer uses the GOM value to come up with the 2.3 figure instead of simply using the miles traveled!?)

Cruise control was set at 77mph and HVAC was set to 68F (Note, however, that the first leg of the trip--1/2 of it--was during rush hour and I didn't get a chance to do 77 mph that much. The 2nd leg was pretty much all 77 mph.)





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agoldman

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climate use 28%...
 

zhackwyatt

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This morning I went for a little drive (100 miles or so, see trip meter). When I left it was -3F out, when I arrived home it was 20F out. Range when I left was showing 180 miles with 100% charged. Reset the Trip 1 meter sitting in the garage before pulling out after preconditioning it for a good 30 minutes.

Lets look at some details:
1613588678763.png

When I got home:
1613588706972.png

Here you see I have 53% battery left which means I used 47% of the battery.

This means I used 88*.47=41.4kWh of electricity.

If I do this: 103.7/41.4 = 2.5miles/kWh...thats funny the trip meter says 2.3.

Using the 2.5 miles/kWh figure means my 100% range should have been 220 miles and my current GOM should be showing 116 miles.

(I'm guessing the trip computer uses the GOM value to come up with the 2.3 figure instead of simply using the miles traveled!?)

Cruise control was set at 77mph and HVAC was set to 68F (Note, however, that the first leg of the trip--1/2 of it--was during rush hour and I didn't get a chance to do 77 mph that much. The 2nd leg was pretty much all 77 mph.)
Maybe trip doesn't account for regen.
 
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JamieGeek

JamieGeek

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  • Thread starter
  • Thread Starter
  • #5
climate use 28%...
That is a possibility: The trip meter is only using kWh for route to calculate its miles/kWh figure.

But that would make the miles/kWh value larger.

(Frankly 28% is pretty good in <0F temps.)
(Still think the trip meter there should list out the values in kWh; not percentages.)
 

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