Tesla Model S Shunt

Topics concerning the Tesla front and rear drive unit drop-in board
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nilsvr
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Tesla Model S Shunt

Post by nilsvr »

Hi,

I have aquired the original Tesla contactors and additionally got the shunt from the battery pack. The only thread i found about this piece is from 2017 when Damien got one as a donation and posted about it on DIY Electric car forum.
https://www.diyelectriccar.com/threads/ ... nt.189858/
Sadly there was never an update post.

Did someone manage to use this shunt for current measuring or do i need to buy another one.

I am planning on using SimpBMS for the Battery (I3) and an LDU with the evbmw board.

Best regards
Nils
tom91
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Re: Tesla Model S Shunt

Post by tom91 »

Shunt requires isolated comms, and people have had it working. However this is not compatible with the SimpBMS.
Also be careful the OE Tesla Contactors are none economised thus need a diode and be setup as per SimpBMS usermanual.
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nilsvr
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Re: Tesla Model S Shunt

Post by nilsvr »

Thank you for the info.
Then i guess i will be on the lookout for another current sensor.
I also have the contactors from an I3 Battery pack and will check if they have an economizer. (And maybe there is even a current sensor in the I3 SME)
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