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OMG no Karen! I guess a couple of servo motors connected to an Arduino, operating the "+" and "-" of the map shall do the job. All in the name of science, of course!

My friend is playing MP3 from a USB stick for over 1 year and the eMMC is still alive (and slowing :) ) I would think that the .MP3 data is accessed directly by the MCU's CPU, therefore not putting a load on the eMMC. Altought, like you mention, there maybe some sort of caching to the eMMC...

So... asking for a friend: is there an automated task that can be run to stress the usage of the eMMC in a MCU1? Like a webpage always refreshing/putting a load on the eMMC?

6 months later: "Dear Rui, Thank you for contacting Referral Program. I have checked on your concern and can confirm that the ARACHNID Wheels is already selected. Unfortunately, i do not have any lead time for the Wheels at this very moment. The issue basically is that our tire partners...

Redrick00, this - and the linked thread - is the correct answer to your (correct) findings. Summing it up: because of discharge losses (not accounted for in Tesla's energy consumption meter) you'll never, ever, ever be able to see the car report a +70kWh "energy consumption since last charge"...

Hi, I'm looking to buy 2 Tesla battery modules - Probably from Europe in order to minimize shipping costs (to Portugal), - In perfect working order, - With some sort of history from the donor car (would really like to avoid stolen items) - Preferably 444 cell 5.3kWh modules. Can also check...

Because my modules are going to be heavy cycled, and after noticing several reports like this one, I just want to play it safe on the degradation side. The reports are mainly with the 90's and early 75 packs. Not the 60 (not software limited), 70 (not software limited), 85 or 100.

Hi, I'm looking to buy 2 Tesla battery modules - Probably from Europe in order to minimize shipping costs (to Portugal), - In perfect working order, - With some sort of history from the donor car (would really like to avoid stolen items) - Preferably 444 cell 5.3kWh modules. Can also check...

Because calculating the consumption in relation to 100% of the energy that entered the battery is something that would have a small margin of error (much smaller than the energy that's currently not being accounted for), you prefer to have a super precise measurement of the energy that is...

Just a sec. Let me just upload the code to Github. Or I would happily sell Elon or Space X the graph on the 1st post for $5000.!

Why is that curious? It's clearly stated on the 1st post that that is the overall conclusion of the experiment: "Model S is NOT measuring the battery’s discharge (in)efficiency" It was right there on the 1st post! The word accuracy is referred in relation to an indicator that Tesla calls...

Energy Star (ENERGY STAR | The Simple Choice for Energy Efficiency) closely monitors energy efficiency on dehumidifiers, dishwashers, refrigerators, room air cleaners, HVACs and even geothermal heat pumps, but indeed no EVs, so perhaps you have a point when you say "it's likely that EVs will...

So sorry, but what's been pointed is that the car's BMS indicates the energy in the battery. It's an insurmountable fact. Pointing in the opposite direction is plain insanity. PS: Towing, going uphill and using the AC has nothing to do with the ability to estimate the amount of energy left in...

They don't show that number where they should: in the consumption and in what Tesla calls Total Energy (which should be called Part of the Energy). And, additionally, that number DOES NOT show you charge efficiency: you pull 55 from the wall, and 50 enter the battery. The car shows you the 50...

Man, I know all of that!!! :(:(

Ok, so, you're saying the BMS can't calculate the amount of energy left in the pack, but does its best to estimate the remaining capacity... had no idea those were 2 different things! Thanks! PS: just to be clear. 1. I'm being sarcastic, sorry. 2. If you connect to the car's Can bus you can...

So, you're saying that it's not true that the car BMS calculates (the word is calculate, not measure) the amount of energy left in the pack. Is that really what you're saying? Because.... that's what you're saying! If what you are saying is not what you are saying, please choose your words...

Again: - I'm not concerned about energy going in. Energy going in IS NOT covered in this thread. - This thread is EXCLUSIVELY related to the energy going out of the battery pack, and the fact that the car's consumption indicator doesn't show the consumption of ALL the energy that was stored in...

The objective of the car's "Consumption" meter should be to know... your consumption (ultimately, in $ or €)! If any energy is lost due to balancing, internal resistance of the battery, AND that lost energy can be accounted for, then it SHOULD be included in the car's Consumption indicator. Not...

It could account for them by difference. Like this. As for the rest of your post, including your doubts regarding the inclusion of vampire drain in the Wh/km reading, yes, I 100% agree with you. It could add some confusion / difficulty to compare or conclude anything. Still, it would be nice to...

In your observations I believe your also witnessing the (normal) losses during charging, which are covered in this topic. And yes, the ACTUAL cost of driving a Tesla (or any EV?): wh/mile x cost of electricity x 105% to 110% to account for charging losses x 105% to 115% to account for...

Also for the sake of clarity regarding the conclusions of the 1st post, I do exactly the same things to minimize vampire drain. Additionally, almost all my data points are from daily driving & charging. These 2 aspects minimize the impact that vampire drain could have on the car’s consumption...

Darmie, in this topic, we are only covering consumption accuracy, not charging efficiency! For the first, it's a more well know fact that you only get ~85%-95% efficiency when charging. What's less known - and what's being discussed here - is that the car doesn't account all the actually energy...

There's a very simple way to do it: The car's BMS calculates, in real time, the amount of energy left in the battery. Meaning, in every single moment, the car has information of the kWh left in the pack. That’s were the SoC % indicator comes from. The car also measures the miles / KMs covered...

That is not correct. If you fill your tank with 50 liters and drive for 500 KM until the gas runs out, every single ICE car will report a 10l/100Km average. ICE cars obviously also report the fuel used when idling when calculating the average fuel consumption. For sure, nothing new here...

Thanks for pointing that out but, as you mention on that thread, that one has "no data on the old chargers but others may have." This thread is precisely the data for older pre-facelift cars. Posting your data here for comparison, it's also clear that (as most people know), the new cars have a...

Yes, vampire drain does account for some of the difference but, as you can see from the correlation between discharge rate and the error of the car's reported consumption, the main reason must be in the discharge efficiency. And, as a matter of fact, the vampire drain SHOULD ALSO be included...

1) As you should imagine, someone that's uses a meter, reads the car API, reads car data from the CAN bus, and opens a topic in TMC does know that there are inefficiencies, does know why Tesla cools the battery, and does know (and wrote on the 1st post) that a higher C-rate increases...

The car's dashboard does NOT show the TOTAL consumption of the energy that entered the battery! This is a bold statement, but also a very verifiable one. For 1 month, after each daily drive, I took note of the kWh used, reported in the car's dashboard (Model S 85D) I charged every night to...

It's a relatively known fact that, when charging any EV, there are losses. These: Are mainly related to the efficiency of the car’s onboard inverter in the AC/DC conversion, but can also result from active cooling of the battery during charging. That happens when charging at higher amps and/or...

What happened to the Volvo's front is the difference between saving or killing a pedestrian in the advent of a collision!!! Cars move forward so, in order to save pedestrians lives, they need/should have enormous capacity to absorb energy in a frontal collision. The repair bill for the Model 3...

The interior of mine is way different than yours! Bought it some 3 years ago from China (from Aliexpress, I think). Worked fine with other ICE cars, but doesn't work with TM-Spy. Bought the new one from Amazon.co.uk

I finally got Tm-Spy to work with my 85D! Coincidentally, it didn't work with an adapter that looks just like the one Speedy posted above (see my post #409), but is working now with the one: Three questions regarding the data I'm getting: 1) What do the numbers 81.7 and 83.2 mean? (circled...

Can anyone help by looking at the TLC file? I have no idea what to look for. If it's my ODB reader that is incompatible, can you point to a cheap one that works well / gets the job done? (this is just for fun; no need to spend alot)

I connected my ODBII to the adapter cable, but can't get TM-Spy to work on my Dec-2015 Model S 85D. The ODBII dongle works fine on other cars (Audi Q2, VW Scirocco), using a Samsung J5 and the Torque app. But on TM-Spy, it either: 1) Doesn't connect at all, or, 2) Alternates very rapidly...