Search found 9 matches

by BogdanT
Tue Jun 01, 2021 11:25 am
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

Looks like a TCCharger, they should work fine.
This is a long-shot, but try setting param 6 Charger CAN msg spd to 1000ms (1 sec).

LE: is it flashing only Red? or combination Red/Green?
by BogdanT
Fri Feb 26, 2021 11:34 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

That's the charger's to handle (the charge curve). BMS will just command the "max current", and will taper that curent down when the battery is close to fully charged.
by BogdanT
Fri Feb 26, 2021 9:36 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

The map function changes a value based on ranges. In this scenario it will start reducing the current when the highest cell voltage reaches the histeresis value. Something like: HighCell = ChargeSetPoint - Histeresis => Max charge current (slowly reduce current until) HighCell = ChargeSetPoint => 0 ...
by BogdanT
Tue Jan 12, 2021 12:19 am
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

Awesome! Could you also look out for something I noticed with Paul? Balancing process seems to drain the other cells as well (as of now assumed to be due to constant voltage sampling @200ms during balancing). At 100mV discharged (by balance) from the top cells you should also see around 30mV dischar...
by BogdanT
Tue Jan 05, 2021 10:19 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

I'm currently testing some updates on the balance process (only Volt/Ampera version) with Paul (speed in particular). Can you share your results with the main branch software?
PS: if you want to test the updates send me a PM
by BogdanT
Sun Dec 20, 2020 5:02 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

I'll ping you in 1-2 days, it's a bit of a mess now as I got carried away and updated a bunch on the program logic + the display. it'll probably require SIMP & display update.
by BogdanT
Thu Dec 17, 2020 7:18 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

So far so good on my side. Balanced to 15mV now back to charging.
I do see some modules that report a constant temperature (17C)... Maybe the sensors are broken?
by BogdanT
Thu Dec 17, 2020 1:31 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

No, neither debug or display will show if it's actually working. Checking the code I noticed that balancing on Volt/Ampera was never enabled (bug) - I sent it to Tom and he reactivated the balancing commands 2 days ago. Then, when I tested, it froze my BICMs. I checked the balance code and noticed t...
by BogdanT
Thu Dec 17, 2020 8:17 am
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 266474

Re: Simp BMS

Jumping aboard this train. Is anyone using Volt/Ampera + SIMP BMS up for some testing? I noticed that the balancing code on the SIMP is not ok, and would like to push a patch but not before testing on some different setups. Shoot me a PM if balancing is not working on your side and would like to test.