Shunt needed with OI board?

Tell us about the project you do with the open inverter
Post Reply
ardillolambo
Posts: 33
Joined: Mon Sep 20, 2021 8:09 pm
Has thanked: 3 times
Been thanked: 4 times

Shunt needed with OI board?

Post by ardillolambo »

Guys,
I'm panning using a custom digital dash board to display info such as speed, temperature and all that kind of things....can I get all that data from the OI inverter board or do I need a shunt resistor?
arber333
Posts: 3241
Joined: Mon Dec 24, 2018 1:37 pm
Location: Slovenia
Has thanked: 74 times
Been thanked: 223 times
Contact:

Re: Shunt needed with OI board?

Post by arber333 »

ardillolambo wrote: Wed Dec 07, 2022 2:14 pm Guys,
I'm panning using a custom digital dash board to display info such as speed, temperature and all that kind of things....can I get all that data from the OI inverter board or do I need a shunt resistor?
Hm... OI can output CAN data stream. But i dont know if you can directly use the DC current data. Maybe not really accurate...
Speed and temp info is there and can be slaved to CAN.
User avatar
johu
Site Admin
Posts: 5681
Joined: Thu Nov 08, 2018 10:52 pm
Location: Kassel/Germany
Has thanked: 153 times
Been thanked: 959 times
Contact:

Re: Shunt needed with OI board?

Post by johu »

The DC current figure is as accurate as the current sensors are calibrated, That said it doesn't include miscellaneous currents like DC/DC, heater etc. Better source current from the BMS (or a shunt)
Support R/D and forum on Patreon: https://patreon.com/openinverter - Subscribe on odysee: https://odysee.com/@openinverter:9
ardillolambo
Posts: 33
Joined: Mon Sep 20, 2021 8:09 pm
Has thanked: 3 times
Been thanked: 4 times

Re: Shunt needed with OI board?

Post by ardillolambo »

johu wrote: Wed Dec 07, 2022 4:42 pm The DC current figure is as accurate as the current sensors are calibrated, That said it doesn't include miscellaneous currents like DC/DC, heater etc. Better source current from the BMS (or a shunt)
Johu
Any particular shunt that you will recommend for a dual motor set up?
Post Reply