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Ford App overestimating Efficiency

KingJo3y

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Anyone else seeing unrealistic efficiency numbers in their Ford App? Believe it is way overcounting miles traveled for some reason, leading the the bogus efficiency numbers.

Ford F-150 Lightning Ford App overestimating Efficiency Screenshot_20230602_092202_FordPass
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RickLightning

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Yes, EVERYONE ELSE. Ongoing issue for two years now (Mach-E). Miles from previous trip may not reset. Try turning on the truck by NOT pressing the brake pedal. Then press the brake pedal and push Start again.
 

jdmackes

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Yes, EVERYONE ELSE. Ongoing issue for two years now (Mach-E). Miles from previous trip may not reset. Try turning on the truck by NOT pressing the brake pedal. Then press the brake pedal and push Start again.
I've noticed this sometimes too, never posted cause I figured it was an issue that everyone had but I'm glad to see it confirmed now
 

Zprime29

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I've tried every combination I can think of between pressing the brake and turning the truck on and off, I've given up trying to make it reset reliably. About once a week, I go into the log and delete anything that look erroneous and that seems to help my GOM (my speculation).

Are we able to generate logs from OBDII apps? I really need to find my adapter this weekend so I can start exploring the possibilities.
 

RickLightning

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Are we able to generate logs from OBDII apps? I really need to find my adapter this weekend so I can start exploring the possibilities.
No.
 

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RickLightning

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I was referring to a log that would show a trip, and the efficiency of that trip, like the EV log in FordPass.

Correct me if I am wrong, but you can't simply use an OBD adapter, and Car Scanner, and pull up stored data showing that, correct?

What you are doing is much, much more sophisticated. And, you're storing the data as you go, right? You can't pull up the data for a trip from a week before you connected your box, right?
 

Zprime29

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If the data is timestamped in the CSV, it would be trivial to write a script for trip logs. Definitely looking for that OBD adapter this weekend!
 

mr.Magoo

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Correct me if I am wrong, but you can't simply use an OBD adapter, and Car Scanner, and pull up stored data showing that, correct?

You can't pull up the data for a trip from a week before you connected your box, right?
Well, yes and no.
You're right, there's nothing saved in the vehicle that you can access (that I know of anyway) after the fact.
But as long as you have Car Scanner connected/running, it can log anything you want and write that to a timestamped file that can be exported to graphs in the app or to a CSV file (example below).
This file can then later be used in Excel.

There's no good way of logging "real-time" energy use (that I know of), plus the speed of the interface wouldn't allow you to get the granularity to get accurate enough readings, so the easiest way is to look at "mpE" is the estimated amount of energy (energy, not SoC) left in the battery and simply divide distance witt that energy.
I do it this way in my black box and the result matches what the car/ford pass says when they get it "right".


[EDIT] And before someone corrects me...
Yes, theoretically you can look at the volt/amp on the battery pack and the LVB and figure out the usage and potentially convert torque/rpm readings on the motors to kW, but you're only logging so fast and each log value will be a snapshot in time vs. accumulated change since the last time so for this to work properly/be accurate you'd have to log every 50ms (millisecond) or so (which OBD isn't designed to do / handle) instead of every minute or in my case 15s.


SECONDS PID VALUE UNITS LATITUDE LONGTITUDE
21373.59339 Average speed (GPS) 0.16700357 km/h 42.4678448 -83.1451347
21373.59339 Speed (GPS) 0 km/h 42.4678448 -83.1451347
21373.59839 Altitude (GPS) 168.8999939 m 42.4678448 -83.1451347
21373.59839 Altitude (GPS) 168.8999939 m 42.4678448 -83.1451347
21373.59839 Average speed (GPS) 0.1661607978 km/h 42.4678448 -83.1451347
21373.59839 Speed (GPS) 0 km/h 42.4678448 -83.1451347
21373.59939 Altitude (GPS) 168.8999939 m 42.4678448 -83.1451347
21373.61339 Altitude (GPS) 168.8999939 m 42.4678448 -83.1451347
21373.61339 Average speed (GPS) 0.1638229109 km/h 42.4678448 -83.1451347
21373.61339 Speed (GPS) 0 km/h 42.4678448 -83.1451347
21374.35439 Altitude (GPS) 168.8999939 m 42.4678448 -83.1451347
21374.35439 Average speed (GPS) 0.09526968043 km/h 42.4678448 -83.1451347
21374.35439 Speed (GPS) 0 km/h 42.4678448 -83.1451347
21374.35639 Altitude (GPS) 168.8999939 m 42.4678448 -83.1451347
21374.35639 Average speed (GPS) 0.09518627722 km/h 42.4678448 -83.1451347
21374.35639 Speed (GPS) 0 km/h 42.4678448 -83.1451347
21374.37939 Altitude (GPS) 168.8999939 m 42.4678792 -83.1452631
 
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djwildstar

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Here''s a screenshot from last week. I'm pretty sure in this case that I didn't turn off the truck at a fast charger, but rather moved it away from the charger and parked before I shut down. So FordPass only looked at the state of charge when I started up, the state of charge when I shut down, and concluded that I had somehow driven nearly 150 miles on a half a kilowatt-hour.

Ford F-150 Lightning Ford App overestimating Efficiency IMG_3892
 

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RickLightning

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Here''s a screenshot from last week. I'm pretty sure in this case that I didn't turn off the truck at a fast charger, but rather moved it away from the charger and parked before I shut down. So FordPass only looked at the state of charge when I started up, the state of charge when I shut down, and concluded that I had somehow driven nearly 150 miles on a half a kilowatt-hour.

IMG_3892.jpeg
No, it just didn't reset the mileage. And it used the 0.4kWh that you used to drive the less than a mile. Happens all the time.
 

mr.Magoo

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and here's my trip report from pulling into the garage (it used the mileage from the previous trip and energy use from pulling into the garage).

Ford F-150 Lightning Ford App overestimating Efficiency Screenshot_20230503_041551_FordPass
 

gregoryhcain

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Yes, I have seen some crazy numbers like that as well. Most certainly a software programming issue. If you really want to know your efficiency you need to calculate it yourself the hard way using the odometer and the number of kwh you add to get back to your starting point. The app is fiction on this one
 


 


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