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.

 

[Usikker]

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...

Have you tried this software ?
https://elbil.spjeldager.dk/app-debug-v7.apk

If you install it on a android device you can see the volt of all your cell's including those extra in the 30kw battery (2018 model)
It also make log files so you can go back and if there is any cell that is way out compared to all other cell's you will see it

This is a sample from my 2018 model, not fully charged

"VIN","ELM327.Voltage_V","system.scan_start_time_ms","system.scan_end_time_ms","route.time_s","route.lat_deg","route.lng_deg","route.elevation_m","route.speed_mps","car.speed_kph","car.odo_km","car.ambient_C","car.lights","car.wipers","ldc.is_enabled","ldc.out_DC_V","ldc.out_DC_A","ldc.temperature_C","range.estimate_km","range.estimate_for_climate_km","charging.power_kW","battery.is_charging","battery.SOC_display_pct","battery.SOC_pct","battery.SOC_decimal_pct","battery.SOC_precise_pct","battery.DC_V","battery.DC_current_A","battery.accumulative_operating_time_s","battery.accumulative_charge_power_kWh","battery.accumulative_discharge_power_kWh","battery.fan_feedback_signal","battery.inlet_temperature_C","battery.min_temperature_C","battery.max_temperature_C","battery.module_temperature0_C","battery.module_temperature1_C","battery.module_temperature2_C","battery.module_temperature3_C","battery.module_temperature4_C","battery.module_temperature5_C","battery.module_temperature6_C","battery.module_temperature7_C","battery.heat1_temperature_C","battery.heat2_temperature_C","battery.auxiliaryVoltage_V","battery.ChaDeMo_is_plugged","battery.J1772_is_plugged","battery.accumulative_charge_current_Ah","battery.accumulative_discharge_current_Ah","battery.airbag_hwire_duty","battery.available_charge_power_kW","battery.available_discharge_power_kW","battery.cell_voltage0_V","battery.cell_voltage100_V","battery.cell_voltage10_V","battery.cell_voltage11_V","battery.cell_voltage12_V","battery.cell_voltage13_V","battery.cell_voltage14_V","battery.cell_voltage15_V","battery.cell_voltage16_V","battery.cell_voltage17_V","battery.cell_voltage18_V","battery.cell_voltage19_V","battery.cell_voltage1_V","battery.cell_voltage20_V","battery.cell_voltage21_V","battery.cell_voltage22_V","battery.cell_voltage23_V","battery.cell_voltage24_V","battery.cell_voltage25_V","battery.cell_voltage26_V","battery.cell_voltage27_V","battery.cell_voltage28_V","battery.cell_voltage29_V","battery.cell_voltage2_V","battery.cell_voltage30_V","battery.cell_voltage31_V","battery.cell_voltage32_V","battery.cell_voltage33_V","battery.cell_voltage34_V","battery.cell_voltage35_V","battery.cell_voltage36_V","battery.cell_voltage37_V","battery.cell_voltage38_V","battery.cell_voltage39_V","battery.cell_voltage3_V","battery.cell_voltage40_V","battery.cell_voltage41_V","battery.cell_voltage42_V","battery.cell_voltage43_V","battery.cell_voltage44_V","battery.cell_voltage45_V","battery.cell_voltage46_V","battery.cell_voltage47_V","battery.cell_voltage48_V","battery.cell_voltage49_V","battery.cell_voltage4_V","battery.cell_voltage50_V","battery.cell_voltage51_V","battery.cell_voltage52_V","battery.cell_voltage53_V","battery.cell_voltage54_V","battery.cell_voltage55_V","battery.cell_voltage56_V","battery.cell_voltage57_V","battery.cell_voltage58_V","battery.cell_voltage59_V","battery.cell_voltage5_V","battery.cell_voltage60_V","battery.cell_voltage61_V","battery.cell_voltage62_V","battery.cell_voltage63_V","battery.cell_voltage64_V","battery.cell_voltage65_V","battery.cell_voltage66_V","battery.cell_voltage67_V","battery.cell_voltage68_V","battery.cell_voltage69_V","battery.cell_voltage6_V","battery.cell_voltage70_V","battery.cell_voltage71_V","battery.cell_voltage72_V","battery.cell_voltage73_V","battery.cell_voltage74_V","battery.cell_voltage75_V","battery.cell_voltage76_V","battery.cell_voltage77_V","battery.cell_voltage78_V","battery.cell_voltage79_V","battery.cell_voltage7_V","battery.cell_voltage80_V","battery.cell_voltage81_V","battery.cell_voltage82_V","battery.cell_voltage83_V","battery.cell_voltage84_V","battery.cell_voltage85_V","battery.cell_voltage86_V","battery.cell_voltage87_V","battery.cell_voltage88_V","battery.cell_voltage89_V","battery.cell_voltage8_V","battery.cell_voltage90_V","battery.cell_voltage91_V","battery.cell_voltage92_V","battery.cell_voltage93_V","battery.cell_voltage94_V","battery.cell_voltage95_V","battery.cell_voltage96_V","battery.cell_voltage97_V","battery.cell_voltage98_V","battery.cell_voltage99_V","battery.cell_voltage9_V","battery.drive_motor_speed_rpm","battery.fan_status","battery.max_cell_detoriation_n","battery.max_cell_detoriation_pct","battery.max_cell_voltage_V","battery.max_cell_voltage_n","battery.min_cell_detoriation_n","battery.min_cell_detoriation_pct","battery.min_cell_voltage_V","battery.min_cell_voltage_n","ldc.in_DC_V"
"KNAJX81EFJ70#####",28.3,1511092376583,1511092379550,1511020893000,59.741715000000006,10.033753333333333,82.0,0.0,0.0,7073.3,0.5,"ON","OFF",true,14.3,23,3,131,9.1,0.0,false,87.5,83.5,83.5,97.734375,397.1,7.5,2358651.0,1407.3000000000002,1367.7,0,5.0,5.0,4.0,6.0,4.0,5.0,6.0,6.0,5.0,5.0,4.0,5.0,4.0,14.0,false,false,3660.6000000000004,3658.4,80,45.14,90.0,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,0.0,"FAN_STOP",0,0.0,3.96,33,0,0.0,3.96,1,396
"KNAJX81EFJ70#####",14.0,1511092381598,1511092384956,1511092383000,59.741640000000004,10.033998333333333,49.5,0.11941556,0.0,7073.3,0.5,"ON","OFF",true,14.3,23,3,131,9.1,0.0,false,87.5,83.5,83.5,97.92578125,397.0,8.1,2358656.0,1407.3000000000002,1367.7,0,5.0,5.0,4.0,6.0,4.0,5.0,6.0,6.0,5.0,5.0,4.0,5.0,4.0,14.0,false,false,3660.6000000000004,3658.4,85,45.14,90.0,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.96,3.94,3.94,3.94,3.94,3.96,3.94,3.96,3.94,3.94,3.96,3.96,3.96,3.94,3.94,3.94,3.94,3.94,3.96,3.94,3.94,3.94,3.96,3.96,3.94,3.94,3.94,3.94,3.96,3.96,3.94,3.96,3.94,3.94,3.94,3.94,3.96,3.96,3.96,3.96,3.96,0.0,"FAN_STOP",0,0.0,3.96,12,0,0.0,3.96,1,396

 

[JejuSoul]

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The BMS software update is known as Service Action 297

 

[edzee3]

FWIW, I took my '15 Soul EV into dealer today for the SC155 Steering Gear Pinon recall.
They installed the SA297 BMS Logic Improvement and the SA306 OBC update at the same time.

 

[ZuinigeRijder]

Today I went to the garage for the recall of the Electronic Braking System software update in the Netherlands. After the software update was finished, I was told that also another update popped up (brand new?) for the BMS. They could not tell me what the update did, but apparently an improvement. Now again all my counters are reset, so Torque shows 110% SOH :mrgreen:

This morning I left with 100% and 155 km range and after the BMS reset I had with 78% still 155 km range.
Of course the BMS must learn that my SOH is around 91% with 133500 km driven (6 years old) and I cannot trust the km left.

This is the third time the BMS is updated/reset:
27-6-2017 SA297?
18-7-2018 SA297?
17-9-2020 SA427?

Maybe the BMS update is the one mentioned in this post: SA427 PSEV BMS/FATC Logic Improvement

I found this information

July 21, 2020
Components, Electric System
NHTSA ID Number: 10177748

Manufacturer Communication Number: TSB_ELE203

Summary

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: BMS/FATC OPERATION LOGIC IMPROVEMENT WHILE BATTERY CHARGING (SA427) - This bulletin provides the procedure to upgrade the Battery Management System (BMS) and Full Auto Temperature Control (FATC) software on some 2016-2017MY Soul (PS EV) vehicles, produced from May 21, 2015 through August 29, 2017, in order to improve air conditioning operation while the battery is charging.

 

[JejuSoul]

...This is the third time the BMS is updated/reset...

I have never had a BMS update in 5 years on my blue car.
The white car got a BMS upgrade when they changed the battery.

I assume that these fixes are cumulative so that the latest update includes all the previous ones.
Have you noticed many changes since these updates were done.

 

[ZuinigeRijder]

...This is the third time the BMS is updated/reset...

I have never had a BMS update in 5 years on my blue car.
The white car got a BMS upgrade when they changed the battery.

I assume that these fixes are cumulative so that the latest update includes all the previous ones.
Have you noticed many changes since these updates were done.

I do not think they are cumulative, but if they install the updates, I think those updates will be installed all (one after each other). So did this update also pop-up when the EPB update was done.

Unfortunately resulting in another BMS reset.

I did not see really difference, the last update is only meant for Air-conditioning while charging, when you have configured this. I do not preheat or precool my car.

I had once a flat 12 V battery, therefore there was a LCM update. After replacement of the 12 V battery and this update, the 12V battery still is Ok. Although I also disabled GPS time, because there were also people suspecting battery drain because the GPS unit was not shutting down correctly always.

 

[JejuSoul]

-
I saw this post from someone who had just got the most recent BMS update done. ( SA427)

Sitting in my car, using fast charger. Charge gets to about 80% and all of a sudden the air conditioning kicks on and the fan is running on high. The car is not on and I do not have climate control on. What’s going on? To my knowledge this has never happened before. It was in for service yesterday and they did do software updates.

Facebook Kia Soul EV Forum: Oct 19th 2020

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Here is a list of the various ROM-IDs for each of the BMS Firmware updates on the original Soul EV.



This is badly translated from the Korean as is so often the case with Hyundai / Kia.
E4050 - 'Elevated Temp' actually means with Battery Heater.
E4000 - 'Non-Heating' means without Battery Heater.

I still think that if you get the latest update it will include all the previous ones as a cumulative fix.

My blue car bought in 2015 has never had a BMS update.
I had it serviced recently and still no updates.

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