Knuckles wrote: ↑Wed Apr 24, 2024 2:40 pm is this possible with focci and clara?

You can draw power from a vehicle that is equipped with Foccci (video coming)

The EVSE should shut down CP (or make it 12V) when setting current limits below 6A. Or and least when sending an explicit stop command. In that case you'd omit PP wakeup. CP wakeup is always active. So basically go with the 3rd approach from here https://openinverter.org/forum/viewtopic.php?p=69417#...

Also verify that you get equal torque response in forward and reverse. That kind of indicates a correct syncofs

Bigpie wrote: ↑Wed Apr 24, 2024 7:30 am Maybe one of the phase's is intermittently failing?

Yes most likely connection problem. Resolver, current sensors or PWM channels. A web UI screenshot in failed state would help

Proton wrote: ↑Wed Apr 24, 2024 2:59 am Can I get a discount too? lol

Or cut a deal with Jacob, he's getting some made (if we only knew where he's from - please share your location )

EDIT: but yes if you buy 6 or more from the shop you can get a discount, too since you'd still be the first to buy that quantity

As long as it's EV you're fine
In the "full editor" when replying there is an attachment tab below now that your first post was approved

And we have liftoff :) Applied about 2A excitation current and then did the syncofs calibration. Then used idlespeed to spin at 1000 rpm. Works a treat. Emits some alien sounds, not sure if that is mechanical or electrical. Video coming soon. Remaining question: how do we determine inverter temperat...

serh270 wrote: ↑Tue Apr 23, 2024 6:45 pm So as long as a new ChargeCurrent is sent <1 sec, the CANTIMEOUT error should not occur?

Yes

serh270 wrote: ↑Tue Apr 23, 2024 6:45 pm I am using whatever came installed on the 4.2 foccci board.

From the shop? Then I think it should be recent enough

serh270 wrote: ↑Tue Apr 23, 2024 5:45 pm Are these just the "receive" mappings in the can mapping portion of the web interface?

CanWatchdog is reset automatically when a new ChargeCurrent is received via CAN. Of course provided you are using a recent version.

Good testing day today. Got the main inverter and the exciter inverter going. 1713815378169.jpg All runs fine from 3V3 control signals. I haven't found temperature and bus voltage signals so maybe that is on SPI comms again. But I also found that I forgot to break out two pins so will check these ne...

Since you'd be the first to deploy this on a larger pack I'd be willing to discount on that. Let me know

The 2WD version of the the vehicle is always more efficient than the 4WD. Partly explained by the weight difference but not just that. Also most 4WD vehicles use a PM motor in the rear and async motor in front. It only steps into action on high torque requests. For fine grained control I'd suggest a...

No he must have replaced it with the DELETED text himself.
When I delete spammers I can delete their posts along with the user. Sometimes I delete users that have no posts and haven't been active for more than a year. But never ones that posted something

Yes just cut the direction signal. Works even mid-drive

Yay, road trip reporting time :) Another 1000 km covered going to Augsburg and back. Key takeaways The VCU restarts no longer occured CCS charging was absolutely flawless except one session getting interrupted when someone used the other outlet on the same charger. Could restart no problem Battery r...

If you disconnect the relays from the inverter does the web interface then stay alive?

When we want to run it at circa 400v and with a more common ratio of around the 3.6:1 both of those factors have a large effect on the motors top speed. Motor top speed is not limited by voltage. Peak power CAN be limited by voltage given it's not limited by inverter or motor anyway. Field weakenin...

MrX wrote: ↑Wed Apr 17, 2024 10:00 am I thought that at some stage there was an i3 variant added which mapped the tmphs sense correctly

When setting snshs=BMWI3 it will switch over to SPI comms for udc also

Re info from PM: You have fixed the motor case grounding which is good but it seems power supply to the inverter is not stable. How much current does your contactor consume? 5.32.R gives the BrakeCheck status because cruisemode != Off so it wants to see the brake pedal once at startup. After that yo...

With the above established I want to return to the original questions and the (partly premature) conclusions. So we start with a perfectly working car and a terminal class that remained largely unchanged for years. After fixing a completely unrelated problem with the battery the VCU starts to do spu...

Alright, more changes. Now I no longer managed to lockup the terminal or entire processor. The USART has an overrun flag and apparently while that is active it no longer accepts data. So now I a) disable the RX DMA while running a command - that stops the watchdog reset b) reset the resulting overru...

I have added an echo 0|1 command now and also allow turning off echo in the constructor. So now for the car project I turn it off by default. Upcoming versions of the ESP firmware can turn it off via the command https://github.com/jsphuebner/libopeninv/commit/df951cc1b7fae2dd483429b873bcbbe838746db2...

Reboot problem solved: viewtopic.php?t=4925

Today I found 90% of the cause of an issue that has been plaguing me for months now. I had random reboots of my VCU mid drive. Read up on the whole story here: https://openinverter.org/forum/viewtopic.php?p=66887&hilit=reset#p66887 Lately I had the VCU restart during charging but there was one i...

Congratulations :) (to finishing of course) I don't think the Tesla inverter took damage as it has reverse polarity protection, both the logic board and the power board. EDIT (after watching the video): Do you have a solid ground connection to the inverter? The contactors will pull a surge from grou...