openinverter forum

I was hoping someone could point me in the direction of a good set of tested parameters to start with for my Tesla SDU.
Thanks! Chip

Openinverter.org/parameters has some

I did considerable work tuning the SDU. I posted a set of parameters here that I deemed to be a good safe starting point: https://openinverter.org/parameters/view.html?id=27

There is also another (I believe more aggressively tuned) version that posted here: viewtopic.php?p=45898#p45898

Either of those should be a good starting point, though they were developed at 310V so your results may vary at higher voltages.

Thanks Catphish!
If my nominal voltage is 390, what would you suggest tweaking if I were to copy your parameters for my first shot?

catphish wrote: ↑Sun Sep 15, 2024 11:30 pm I did considerable work tuning the SDU. I posted a set of parameters here that I deemed to be a good safe starting point: https://openinverter.org/parameters/view.html?id=27

There is also another (I believe more aggressively tuned) version that posted here: viewtopic.php?p=45898#p45898

Either of those should be a good starting point, though they were developed at 310V so your results may vary at higher voltages.

why do different parameter sets have different sign settings for current sensors and OC?
Some of these values are negative, others have positive values.

It's random. They just need to have the same sign (ocurlim and ilXgain). In FOC it is relevant in sine not

johu wrote: ↑Fri Oct 04, 2024 2:47 pm It's random. They just need to have the same sign (ocurlim and ilXgain). In FOC it is relevant in sine not

Thanks! I would never have thought of it.

This is sort of tangentially related - I have a V8 SDU board. I see that the WiFi was flaky once the drive unit is closed up and is therefore no included on the current release of control boards. In its stead, what is the best procedure for viewing and manipulating the inverter parameters? I'm nearly ready to close everything up and put it into the chassis, but I want to do my due diligence to ensure things look correct before I jump 3 steps ahead.

I use esp12e wi-fi modules with v8 boards, soldering them with wires. they work perfectly through the inverter housing and the car. very good communication quality.

just don't forget to put the communication module in insulation and attach it to the board with hot glue so that it doesn't hang out!

What is that resistor doing on the Wifi board? I can't quite make out which terminals you've jumped there.

Rx, Tx, Gnd, +3.3v
This 10K resistor is needed to power the module startup. the same resistor is on the reverse side of the other two pins.

it's probably worth noting that I solder already stitched Wi-Fi modules using a separate programmer for this.

I can’t figure it out. I am too dumb for programming, I guess.