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Re: Testing FOC for synchronous motor

Posted: Fri Mar 26, 2021 6:25 am
by Isaac96
glink wrote: Fri Mar 26, 2021 5:19 am Thanks to both! Haven't calibrated anything, I do the POT adjustment with CAN communication. Potmin=0 Potmax=4095 Throtcur=1
No, I haven't gone through the procedure, as was leaning on this to be correct with syncofs=0: https://openinverter.org/wiki/Configura ... Leaf_Motor
If this is not correct and anyone has done the Nissan Leaf EM57 motor calibration, please share!


I believe this video has what you need. Also see the wiki: https://openinverter.org/wiki/Using_FOC_Software

Re: Testing FOC for synchronous motor

Posted: Fri Mar 26, 2021 8:28 am
by mjc506
Also remember that the pot controls torque and not speed. And that with the default settings, some of the pedal travel is reserved for a bit of regen, to emulate engine braking.

I'd recommend watching Damien's syncofs video, and taking your time setting syncofs -it's one of the more important parameters. Make sure you've calibrated your current sensors, udc, etc as per the 'getting started' guide on the wiki.

Re: Testing FOC for synchronous motor

Posted: Fri Mar 26, 2021 2:37 pm
by ZooKeeper
Yes, one cannot get meaningful throttle control prior to successful syncof calibration and it is unlikely that two different motors would have the same settings.

Re: Testing FOC for synchronous motor

Posted: Fri Mar 26, 2021 3:12 pm
by johu
That said, for Leaf motors it is hovering around 0. Not sure what happens with swapped resolver wires though

Re: Testing FOC for synchronous motor

Posted: Fri Mar 26, 2021 8:04 pm
by glink
johu wrote: Fri Mar 26, 2021 3:12 pm That said, for Leaf motors it is hovering around 0. Not sure what happens with swapped resolver wires though
Hmm, maybe I have the resolver wires messed up as well, but thought it was only one permutation that would work