Unusually accurate GOM?

[SnBGC]

There are plenty of examples from forum members with GOM readings that are way off the mark. No question about it. I am just curious how many of us have vehicles with fairly accurate GOM readings most times. My car has always been pretty good. I think there was 2 or 3 days way back when winter first hit that freaked out the guestimate but otherwise it's pretty darn close.

It is very common for me to consume 45%-55% of my battery charge on any given day so it is very easy to double check the accuracy of the GOM. I have done this at least a dozen times and it always comes up to around 2%-3% variance. Usually the GOM estimates lower than what I can actually travel. Screen grab below is just one of many examples that I have recorded. On this particular day, I started out with an estimated 291 miles of range and later that day after consuming 50% of my charge, I had traveled 150 miles with an estimated 148 left on the GOM. Pretty close IMO. Much better than any ICE vehicle's GOM from what I remember anyway.....

Anyone else out there with an accurate GOM?

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[JerryL]

There are plenty of examples from forum members with GOM readings that are way off the mark. No question about it. I am just curious how many of us have vehicles with fairly accurate GOM readings most times. My car has always been pretty good. I think there was 2 or 3 days way back when winter first hit that freaked out the guestimate but otherwise it's pretty darn close.

It is very common for me to consume 45%-55% of my battery charge on any given day so it is very easy to double check the accuracy of the GOM. I have done this at least a dozen times and it always comes up to around 2%-3% variance. Usually the GOM estimates lower than what I can actually travel. Screen grab below is just one of many examples that I have recorded. I start my day with estimated 291 miles of range and the at 50% S.O.C. I have traveled 150 miles with an estimated 148 left on the GOM. Pretty close IMO. Much better than any ICE vehicle's GOM from what I remember anyway.....

Anyone else out there with an accurate GOM?

What is GOM

 

[mjs020294]

What is GOM

guess-o-meter

 

[ponydsp]

Mine is very accurate, more accurate than my ice MB GL. Once the GL is filled up, it will show 650 miles but as soon as I drive a block, it will drop down to 550 miles to empty.

 

[vinny2487]

Mine has been very accurate after I did the initial reset when I first got the car. The GOM has always been within +/- 10 miles, which isn't too bad.

 

[SpaceEVDriver]

Mine is usually inaccurately low by about 10-30%. But every so often it's within a few %. I've never seen it promise more miles than I could drive.

 

[SnBGC]

What is GOM

Nickname of the range estimation.

 

[SnBGC]

Mine has been very accurate after I did the initial reset when I first got the car. The GOM has always been within +/- 10 miles, which isn't too bad.

Same here. I think the dealer reset it right before they sold me the car. Hasn't been touched since.

 

[SnBGC]

Mine is usually inaccurately low by about 10-30%. But every so often it's within a few %. I've never seen it promise more miles than I could drive.

Really curious why some cars are great at estimating the range while others are so very very bad at it. Perplexing for sure. ?

 

[zhackwyatt]

Really curious why some cars are great at estimating the range while others are so very very bad at it. Perplexing for sure. ?

Wonder if it depends on how variable your driving is. Here in Phoenix, my GOM will give me 30 extra miles compared to EPA rating in moderate weather which is accurate for me. Then I took the car on a long drive for the first time. It was overestimating the range. On the way back home it was more accurate. Now it's showing me at 330 on a full charge again.

 

[SpaceEVDriver]

Wonder if it depends on how variable your driving is. Here in Phoenix, my GOM will give me 30 extra miles compared to EPA rating in moderate weather which is accurate for me. Then I took the car on a long drive for the first time. It was overestimating the range. On the way back home it was more accurate. Now it's showing me at 330 on a full charge again.

I think it is driving variability. I'm not even convinced it has any kind of learning other than just basic average mi/kWh. But, I've only had it for 2500 miles, and haven't been experimenting enough yet.

 

[phil]

I don't know how accurate it is for me, and really don't care. Same as my gas cars, it gives me a decent general idea of when I should fill up, and that's good enough.

I would never expect precision in a miles-to-empty reading in any car.

 

[SnBGC]

Wonder if it depends on how variable your driving is. Here in Phoenix, my GOM will give me 30 extra miles compared to EPA rating in moderate weather which is accurate for me. Then I took the car on a long drive for the first time. It was overestimating the range. On the way back home it was more accurate. Now it's showing me at 330 on a full charge again.

My car is also running about 10% over EPA estimated range.
Sounds like your car is running well. Great to hear! ?

 

[DaMeatMan]

There are plenty of examples from forum members with GOM readings that are way off the mark. No question about it. I am just curious how many of us have vehicles with fairly accurate GOM readings most times. My car has always been pretty good. I think there was 2 or 3 days way back when winter first hit that freaked out the guestimate but otherwise it's pretty darn close.

It is very common for me to consume 45%-55% of my battery charge on any given day so it is very easy to double check the accuracy of the GOM. I have done this at least a dozen times and it always comes up to around 2%-3% variance. Usually the GOM estimates lower than what I can actually travel. Screen grab below is just one of many examples that I have recorded. On this particular day, I started out with an estimated 291 miles of range and later that day after consuming 50% of my charge, I had traveled 150 miles with an estimated 148 left on the GOM. Pretty close IMO. Much better than any ICE vehicle's GOM from what I remember anyway.....

Anyone else out there with an accurate GOM?

I totally agree and have noticed the same, that my MME is pretty accurate and what is displayed on screen, is pretty darn close to what I get in real world albeit a few percent too pessimistic. But I would rather know I cam (at least) achieve what is displayed and have real world info, rather than be lied to with a big number that gets me half way to where I'm going. People freak out when they see that number drop as a result of real world conditions, but that's the reality of ANY EV based on current tech and battery chemistry, the only difference is that some manufacturers make you feel good by hiding that reality with bogus inflated numbers that are disconnected from anything achievable in the real world.

 

[2FlyMache]

I'm wondering if this is more closely related to the amount of miles you've driven for the car to learn. I have almost 18K miles and mine is pretty close as well, even in winter. I noticed the OP was around 33K

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