BMS software update

[Elmil]

I had campaign 170055 applied to MY15, I believe at a service in late August (vs when I had my charger replaced for a 2nd time back in June). It has not made any difference to the DCQC and "Blue light" indicator - it still doesn't come on, and it also has not changed the battery rebalance point - it is still happening at 82% ... are both of these changes expected with that BMS update? Did they mess it up on me? Having the balance point move to 92% would help me a lot - as the weather gets colder, I use a DCQC 3-4 times a week, and being able to go up to at least 84% if not a bit higher, would be of tremendous help - I currently stop at 80% because it takes 3-4 minutes to move past the 81% point (around 95,000km)

Ian.

It seems likely that you have not had the BMS upgrade - for me, the very common 82% balancing (just as you describe it) totally disappeared after the upgrade. Though, since then I have not seen any QC balancing at all, except for the very first time I had a 94% QC. Also, that time it was shorter than before, and happened at around 92%.
I'm not 100% sure that the blue light indications are related to the BMS upgrade itself; they are actually physically attached to the OBC, but the service guy didn't tell me anything about any upgrade of the OBC firmware. Still, the LED:s became active at that time.

To verify if the BMS software is updated, you could ask to get the battery report next time you have the car at service, and check the "cumulative operating time" or "cumulative energy charged" values. If the BMS was reset at last service, these values will be much too small.

[SoulEV2016]

balancing strategy don't work like you thing (frontier target job).
It's not an eBike/Bicycle PWM/BMS.

BMS on Soul EV has strategies (and memory of derivatives cells) on long charge, short charge and fast charge (and regulation on balancing device for thermal duration and moisture protection).

Because, it's complicate to balancing an user ... with 98S2P (98 cells in series + 2 cells in parallel on each of the 98 cells).

[Elmil]

balancing strategy don't work like you thing (frontier target job).
It's not an eBike/Bicycle PWM/BMS.

BMS on Soul EV has strategies (and memory of derivatives cells) on long charge, short charge and fast charge (and regulation on balancing device for thermal duration and moisture protection).

Because, it's complicate to balancing an user ... with 98S2P (98 cells in series + 2 cells in parallel on each of the 98 cells).

Actually, it's 96S2P..

The important thing here is wheather or not the BMS software has been upgraded, and what impact that would bring. Observing different behaviors, before and after, is the only way (for us) to draw a conclusion because Kia probably won't tell...

If any warranty claims on a battery pack showing bad performance is dismissed because the BMS software was recently updated and the data reset (showing 100% SOH), I hope Kia will show goodwill...

[zax123]

Hi all,

Our Canadian (Quebec) 2016 Kia SoulEV Premium has 35,000km on it. When it was new, we would get about 148km range on a nice day.

The car is now two years old with 35,000km and the range on a nice day is about 115km. That's a degradation of 22%.

I was wondering if that seemed normal to you guys. The range has lowered to a point where we can't use the car to do our regular daily trips sometimes and so we've brought it to Kia to have them check it out. We really need about 125km sometimes, and I figured the car should be able to do that after only two years.

In comparison, the battery on our Tesla which is now 4.5 years old and has 110,000km has degraded about 6 or 7%.

Anyway, was just wondering if you guys though a 22% degradation over this amount of time and mileage was normal.

Thanks!

Rob

[nibularr]

im in the GTA area and i only get about 118 km on a full 100% charge right now. with 47000 km
average around 5%C
my commute is 90 km each day

ill have my 2 years check in January would be curious to see what level its at now

[notfred]

I'm getting similar values on the Guessometer and I'm in Ottawa with a 2 year old 2016. My real world driving seems to show less drop in range than distance covered, although I'm doing a lot of short trips rather than big distances. I wonder if the BMS update has a more conservative range estimation?

I setup torque pro at the weekend, still don't have the displays sorted but I saw my max det was something like 12.5% for a SOH of 97.5%

[zax123]

In our experience, the guessometer has been pretty accurate and the car really does have much less range than when it was new. I just don't understand how the capacity can go down so much even with Kia leaving a buffer of battery capacity that they slowly use through the life of the car.

Is the car leaving a bunch of capacity unused that can be unlocked perhaps?

[SoulEV2016]

bad cell.

need service and pointing the 22% (and bad cell notification) to enable a "real" diagnostic of the battery pack (and cells).

[zax123]

bad cell.

need service and pointing the 22% (and bad cell notification) to enable a "real" diagnostic of the battery pack (and cells).

Hi there,

How can I prove it's a bad cell. You mention a notification...

The SOH is not showing anything wrong with the car. I'm not sure they connected it to a system which output the BMS info -- do dealers even have that? To be honest, they have pretty much no idea how to diagnose EV issues at the dealership...

[SoulEV2016]

and that's the problem : diagnostics.
GDS Android Tablet with Kia RED dougle can show (and more) the sames informations as Torque PRO.
and so, the bad cell during a charge or a heavy acceleration.

write a letter to your Kia country office ... to identify a lake of knowledge of your actual Kia service local dealer for the EV branch.