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How is SOC or range calculated?

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Does anyone know how SOC or range is calculated on the Roadster? My fake sheet (bricks 46-54) has confused the roadster to drop it's range to 17 miles.

Voltage SOC Brick
3.91 84.11 1
3.89 82.27 2
3.91 85.15 3
3.93 89.25 4
3.93 90.02 5
3.94 90.74 6
3.94 91.23 7
3.94 91.53 8
3.95 92.47 9
3.90 83.08 10
3.89 81.28 11
3.90 84.30 12
3.92 88.24 13
3.93 89.77 14
3.94 90.23 15
3.94 90.73 16
3.94 91.54 17
3.95 91.98 18
3.90 84.30 19
3.89 81.28 20
3.91 85.15 21
3.93 89.25 22
3.93 89.77 23
3.94 90.74 24
3.94 90.73 25
3.94 91.52 26
3.95 92.19 27
3.90 84.11 28
3.89 82.27 29
3.90 84.11 30
3.93 89.25 31
3.94 90.55 32
3.94 90.84 33
3.94 91.53 34
3.94 91.76 35
3.95 92.76 36
3.90 83.90 37
3.90 83.30 38
3.91 85.15 39
3.93 89.25 40
3.93 89.84 41
3.94 90.55 42
3.94 91.23 43
3.94 91.77 44
3.95 92.48 45
3.82 30.74 46
3.81 22.61 47
3.75 28.75 48
3.82 28.83 49
3.74 25.58 50
3.80 45.06 51
3.77 47.77 52
3.78 51.28 53
3.81 66.87 54
3.90 84.11 55
3.90 83.30 56
3.91 85.15 57
3.93 89.25 58
3.93 90.23 59
3.94 90.73 60
3.94 91.23 61
3.94 91.53 62
3.95 92.47 63
3.89 82.27 64
3.89 80.33 65
3.90 83.08 66
3.92 88.24 67
3.93 89.76 68
3.93 90.23 69
3.94 90.51 70
3.94 91.23 71
3.94 91.76 72
3.90 84.11 73
3.90 84.30 74
3.92 87.23 75
3.93 89.25 76
3.94 90.23 77
3.94 90.84 78
3.94 91.54 79
3.95 92.47 80
3.95 92.98 81
3.91 84.11 82
3.90 82.27 83
3.91 85.15 84
3.93 89.03 85
3.94 90.55 86
3.94 90.84 87
3.94 91.23 88
3.94 91.77 89
3.95 92.47 90
3.91 86.20 91
3.90 84.11 92
3.92 87.23 93
3.93 89.80 94
3.94 90.55 95
3.94 91.23 96
3.94 91.56 97
3.94 91.77 98
3.95 92.49 99
 
3.81 22.61 47

17 miles in standard or range; ideal or rated?

Standard could make sense. Range has to be calculated from the brick with the lowest amount of left energy.

This is what I believe:
SOC range in standard mode: 10 - 100 % SOC (not sure about the 10%)
SOC range in range mode: 0 - 110 % SOC

Your lowest brick has a SOC of 22% which is 12 % in standard mode.
That would be 141 miles (rated?) for 100 % SOC.

- - - Updated - - -

3.81 22.61 47
3.75 28.75 48

That's strange. Brick #47 has a higher voltage but lower SOC...

So the SOC seems not to be calculated from the voltage only.
 
17 miles in standard or range; ideal or rated?

Standard could make sense. Range has to be calculated from the brick with the lowest amount of left energy.

This is what I believe:
SOC range in standard mode: 10 - 100 % SOC (not sure about the 10%)
SOC range in range mode: 0 - 110 % SOC

Your lowest brick has a SOC of 22% which is 12 % in standard mode.
That would be 141 miles (rated?) for 100 % SOC.

- - - Updated - - -



That's strange. Brick #47 has a higher voltage but lower SOC...

So the SOC seems not to be calculated from the voltage only.

Thanks Marco.

It was in standard mode.

Before the mileage drop, I said I had 144 mile range, I think I need to do more playing on the fake sheet and gather more data.
 
I noticed the lowest brick as I bring up the voltage on it, that range start to rise, seem like a direct correlation but I assume some SOC is factored in it.

Sigh, I accidentally burnt out resistor R73 on the dc-dc converter... hopefully this will be an easy fix.

Edit: BMB fixed, in case anyone cares, R73 is likely a current limiting resistor to the DC-DC converter, so if the DC-DC converter ever goes bad R73 will burn out.
 
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