View Single Post
Old 07-10-2021, 09:13 PM   #7345 (permalink)
thingstodo
Master EcoModder
 
Join Date: Sep 2010
Location: Saskatoon, canada
Posts: 1,488

Ford Prefect - '18 Ford F150 XLT XTR

Tess - '22 Tesla Y LR
Thanks: 746
Thanked 565 Times in 447 Posts
Quote:
Originally Posted by jedsmd View Post
Hi All
I have one of Paul's IGBT DC controllers (stinky diaper?).
I am trying to limit battery current to protect a new set of batteries.

The controller config file currently has "bat-amps-lim" set to 0000. I assume the zero value means battery amps are not limited.

My desired value is a max of 400 amps. If I set bat-amps-lim to 0400, the controller stops working. I think it is limiting battery amps to zero or a very low value.

Does anyone know if "bat-amps.lim" works? Am I not setting or using it correctly?
Thanks
I have not tested it ... at least I don't think so .. but I think that there is an implied decimal. So 400 = 40.0 amps.

I have tried the motor amps limit, and it does work. The motor current can't be larger than the battery current .. so if the battery current is not working you can work around it with the motor current.

The only bad part about this is that your acceleration will be worse, since the battery current can be 400 amps at your pack voltage, while the motor current is 1600 amps at 1/4 of your pack voltage.

Let us know what you figure out!
__________________
In THEORY there is no difference between Theory and Practice
In PRACTICE there IS!
  Reply With Quote
The Following User Says Thank You to thingstodo For This Useful Post:
jedsmd (07-11-2021)