TeslaMate Super Thread

[cwanja]

Teslamate (and others) just report what the BMS is giving them. Since you only used 0.2 kwh and 0.7 on the two trips, that is a VERY VERY low number where even a tenth will make a large difference. I don't know what the precision of the data the BMS provides over the API, but you can bet it's not terribly precise. Couple that with that value is an "average" of the thousands of cell readings, and you can see where imprecision might occur.

Try a longer drive, like much longer. And look at consumption trends over time to get a real value of how your car is behaving.

I do not believe TeslaMate is pulling any efficiency data from the API, nor do I actually know of any public BMS endpoints. TeslaMate is actually calculating (and recalculating) the efficiency post-charge sessions. See more information here Frequently Asked Questions | TeslaMate

 

[citivolus]

Thank you all. Sounds like the answer is very short drives + BMS providing limited data precision -> big swings in reported efficiency.

 

[citivolus]

Sorry I’ve looked everywhere but how exactly does Teslamate define the calculation for “Efficiency”?

I do not believe TeslaMate is pulling any efficiency data from the API, nor do I actually know of any public BMS endpoints. TeslaMate is actually calculating (and recalculating) the efficiency post-charge sessions. See more information here Frequently Asked Questions | TeslaMate

 

[jmaddr]

It doesn’t seem any more complex than ideal consumption divided by measured consumption.
For example, if it sees 325whr/mi for a trip and ideal is 245whr/mi then 245/315 gives you 78% efficiency.

 

[citivolus]

It doesn’t seem any more complex than ideal consumption divided by measured consumption.
For example, if it sees 325whr/mi for a trip and ideal is 245whr/mi then 245/315 gives you 78% efficiency.

Thanks but where is “Ideal consumption”?

 

[jmaddr]

Thanks but where is “Ideal consumption”?

On the efficiency dashboard of course.
This is on my ‘19 M3P:

 

[jmaddr]

It’s the value of the ideal line in the efficiency applet in the car.

 

[citivolus]

Like others I’ve followed instructions to install Teslamate on an instance of Google Cloud using their free tier. I just got a notification that the free trial will end. Anyone know what I need to do to continue using the free tier? I thought I read that it can continue indefinitely if you don’t use too much resources.

 

[cwanja]

Like others I’ve followed instructions to install Teslamate on an instance of Google Cloud using their free tier. I just got a notification that the free trial will end. Anyone know what I need to do to continue using the free tier? I thought I read that it can continue indefinitely if you don’t use too much resources.

I am not a Google Cloud user, but looks like functions / products of Google Cloud are free. See the second bullet. But you have a 90 day / $300 trial.

Free cloud features and trial offer | Google Cloud Free Program

Discover the free cloud features that come with the Google Cloud trial offer and more information on how to upgrade your account.

cloud.google.com

 

[citivolus]

I am not a Google Cloud user, but looks like functions / products of Google Cloud are free. See the second bullet. But you have a 90 day / $300 trial.

Free cloud features and trial offer | Google Cloud Free Program

Discover the free cloud features that come with the Google Cloud trial offer and more information on how to upgrade your account.

cloud.google.com

FWIW, I just "activated" my GCP account as a real billeable customer. I did confirm with them that my setup should not incur any charges as long as I stay within the parameters of the free tier. Fingers crossed!

 

[Unc1e_Jason]

I just setup TeslaMate in the Oracle Free Cloud and its working great. I've ran other servers there and they way the have things setup you won't ever be charged.