Fluke said:
Having used the updated SYNC software for a couple of days, I've noticed a couple of things good and bad.
In the one drive I've made so far since the update, I've noticed that the guess-o-meter (GOM) is showing a much higher number than it ever had in the time I've owned the car before the update. I saw 92 this morning, when previously I had never seen anything higher than 74 (driving the exact same route, with the same driving style).
I looked at my Wh/mile usage for the trip and it was virtually identical to previous trips, so I know the car didn't use any less energy (and therefore isn't actually more efficient). Therefore I can attribute this behaviour to one of three things:
1)
Previous usage data got wiped out during the update and affected the GOM's calculations. I know this is true to a certain degree, because although my historical Wh/mile data is still intact, my "miles from regen" got reset to 0 (probably when the PCU got wiped). It's unclear how this would affect the GOM however.
2)
The GOM algorithm has improved. This is surely possible, and if the GOM has a better approach for sampling historical usage and current usage to create a more realistic number, then it would explain this beahviour. My trip to work is entirely downhill, so I actually always expected to see a number this high and was somewhat surprised I never did previously.
3)
The PCU update draws deeper into the battery state of charge (SoC). It's entirely possible Ford has decided they can safely tap deeper into the SoC without affecting safety, performance or longevity. More available kWh would obviously equate to a greater range.
Of course this is all speculation based on one trip, so I'll hold any conclusions until I see this behaviour repeat itself a few times to know there really is a difference. If #3 is true, then surely others will be reporting a greater range as well (after the update).
It's entirely possible that after a few trips back and forth to work it'll go back to what I was seeing previously.
WP