If anyone knows the pinout of the parking actuator that would be amazing. The motor actuator is 12V to the outer two pins of the plug. Apply 12V in one direction to lock, reverse the polarity on the pins to unlock. You should only need ~5A of current to actuate, and you will head the gears moving i...

Puzzled that boards still can be bricked :( I think I mostly tested with 40V on the DC bus. Always observed the expected rise in power consumption. Won't be home for some weeks to come. There is another DC/DC converter that sends power from the DC bus to the gate driver. Maybe that is related? A co...

So I have had some failures followed by some successes, followed by confusion :lol: After bricking my Mini Mainboard with a firmware update (bad wifi connection dropout!), buying a Tag-Connect and STLINK, reprogramming following https://openinverter.org/forum/viewtopic.php?p=40323& (thanks for t...

If anyone's interested there is a new vid on my channel of my attempts to shorten the inverter housing. Damn! You made short work of that Scott. I don’t think the filter caps in the HV connector junction will be absolutely critical. I would say leave them out for now. Looks mean :evil: I would say ...

Hi folks I'm working in making the inverter package fit in the Mini, I'll have some progress up soon A quick question with this HV filter assembly, do I only need to keep the two circled connectors? Can I get rid of the rest? Tia That's right Scott, although you should try to keep the filter capaci...

It seems like the gate driver power consumption from the HV side keeps collapsing whenever I try to switch the IGBTs. Johannes, just in case you had something specific in your setup, was there a minimum voltage you had on the DC bus to make the inverter work? Also, do you have any information on the...

Oh... but do you have the board with 3 line drivers (5 pin chip next to header)? Yes, this is the release adaptor PCBA, it arrived a week ago, after a few months getting to the other side of the world. *edit* I migrated the missing parts from old board to the new on Tuesday and have been tinkering ...

I've been thinking the same thing. I believe that the accurate motor position could likely be derived with some kind of script that executes the following steps: slowly ramp up motor current (~5A/s) on a single phase to align the motor, holding at some safe threshold (% of maximum phase current mayb...

Simple issue after all! Looks like my SCK signal was being voltage divided between RN1 and RN2 on the Mainboard, meaning that my "Low" level was 1.7V (3.36V / 2 on my board). Therefore I wasn't getting a SCK down to the i3 gatedriver as it was constant-high signal after going through the l...

Well that's strange. MOSI and *CLK cycling together, with no data. Garbage on SCK, and nothing on MISO. I'm also only seeing pulses at 1kHz intervals, so I suspect I need to get an oscilloscope on the thing. Note there is one transition on MISO, which is when I turn on 30V to the DC bus to power the...

Also, did you check the solder jumper? https://openinverter.org/forum/viewtopic.php?p=36365#p36365 Yep, solder jumper checked. Just in case this helps at all Johannes, I have confirmed 32V reg, and I’m supplying 30V to the DC bus. It seems to have around 1W of consumption on the DC bus side, I’m gu...

Personally I am going for a SimpBMS system I think, have you looked at the BMS threads on here? I can recommend the SimpBMS for this, I have had one running the comms to the BMW i3 cell monitoring units already. Tom's code is solid and just works out of the box when programmed to talk to the i3 mod...

Hello all, Been a while since I was last here, I haven't made significant progress myself. However, I seem to be chasing an issue where I have no bus voltage sense comms on my board. Has anyone else got to the point where they have an inverter operational and where they could check that the board is...

I would recommend hacking the existing BMW i3 system. Tom DeBree has a neat little unit called the SimpBMS that already talks CAN to the BMW i3 submodules. It's very similar to the openinverter ethos in that it uses the existing OEM hardware with it's own "Brain" and control circuitry. Con...

I though I had cleared that screw post by now, oh well. Can't move the adapter PCB down any further because I believe it will then collide with the top cover. I just remembered you had mentioned that you fixed the screw post collision on the new adapter board rev, that would be it! I think it might...

Exciting times! Lots of new people with new inverters! I've been working on some mechanical integration bits and pieces, hopefully some that will help other members. 1: If you are planning on using the shield mounted under the inverter, you will have to knock out the centre post as it sticks up into...

In the video a little higher up states (7.00) it is a twelve pole motor and I am pretty sure that encoders use the same pole number. I have used it for my Unitch inverter and it "worked" even if I have not driven the car yet, only spun the engine. Sorry, my mistake I meant 6 pole pairs. I...

I'm currently in the mechanical design process, the volume where the board resides is rather awkward and I needed two revisions so far just to kind fo get that right. Oh, and I forgot to say I can help here maybe. I could maybe 3D model/scan the enclosure and create some CAD files for you if that h...

I posted From what I've been able to find out online, the BMW i3 inverter is using 8kHz PWM, whilst the Leaf is using 5kHz. This would potentially explain the why BMW is using a shorter deatime with the same IGBT moule as the (2018 on) Leaf. I would be surprised if it would be as low as 8kHz with a...

Hello all, I have been a long time admirer of the openinverter projects, and personally jumped in the deep end with an i3 about 1 year ago. Originally I thought that Damien stopping work the project had left my hopes of "open" control in the hands of an off the shelf inverter, but I discov...