Is it possible that they can selectively control the amount of solder paste?


The solder mask (the area the solder can spread into, F.Mask) and the paste stencil (the area they actually apply the paste to, F.Paste) are separate files that you generate and upload. If you want less solder, just ...

Some of the features you're describing exist in the openinverter software and some don't. From memory:

* Pressing the brake pedal disables cruise control and disables the throttle.
* Gear selection does not require the brake to be pressed and this is not an option that currently exists.

If you ...

Is the kicad project on that github the latest version? Back silkscreen text is "Daisychain BMS v5". I ask because the readme mentions 3 interfaces and this one has 2 (my project is fine with one or two, so no worries there), and also the common mode filter has been increased past the original ...

The beauty of this unit is that it will run very well on a very wide range of voltages, but your best bet is to aim for the standard 96S (approx 360V nominal). This provides the best balance of safety (you're more likely to blow up the inverter and yourself at higher voltages), and torque (400V is ...

Bratitude wrote: ↑Sat Jun 28, 2025 9:56 pm If your planing on releasing your own standalone controller then fair enough, but the open in openinverter dose stand for something….

Congratulations on your 1000th post in this forum

If I post this info, then what will be the point of the inverter board that Damien is making now? Also I don't want to take away the bread of Johannes, his openinverter shop and so on. Sorry.


If this is your only motivation, then please send the data to Damien and Johannes and let them decide ...

As royhen99 says, the open source VCU you are looking for is ZombieVerter. This works great with Leaf hardware as well as some others.

This does feel like the polarity was reversed at the inverter, or maybe you . Are you able to trace things through and determine if that's the case? If the current stopped, then presumably something in the circuit opened. If it wasn't the contactor, and it wasn't the fuse, then I can only assume the ...

Hello everyone!

I just wanted to update this thread with some important information as I get questions about this from time to time.

First of all, to give a little background, the best way to build a BMS to work with these batteries would be to design a PCB with a bq76PL455A chip and an STM32 ...

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: https://openinverter.org/forum/viewtopic ...

Another milestone reached today. I ordered 10 QCA7005 chips to JLCPCBs factory and can now select it for assembly :)


This is fantastic news, and the price is perfectly reasonable considering the value of the finished board! Looking forward to seeing some "v1" boards.

:idea: :idea: :idea:

I love your (I assume 3D printed) light bulb test rig

Thx for the fast response and explanation.
So a async motor we don't use the foc, only for permanent magnet motors?


Correct. FOC is (probably) superior, but extremely difficult to implement on an async (induction) motors. Openinverter only supports FOC on permanent magnet motors. Don't worry ...

We've also got the chip serial which is unique


This sounds good. If we append the STM32 serial number to the 02:: prefix, we should get a nice unique and consistent address.


A) We decide we generate those for the users of focci. The easiest way (for now) is to use a local administered adress ...

Since we don't have a Vendor ID, the best way to generate a valid MAC address is to use a "locally administered" address.
For this to be valid, bit 0 of the first byte should be zero, to indicate a unicast address, and but 1 of the first byte should be one, to indicate locally administered. All ...

How does Zombieverter, in combination with SDU (or LDU), handle the overcurrent event when it is not aware of the tripmode (=1) setting of the OI board in the DU?

Zombie would not be aware of the error. It will simply leave the contactors closed until you turn the ignition key off. This is the ...

johu wrote: ↑Thu Jan 25, 2024 8:26 amI left PP dangling

Giggles.

Awesome work! Looks like it's filling up fast!

tom91 wrote: ↑Sun Nov 26, 2023 1:48 pm Zombie does not have EMC cert.

I was under the impression that Damien had the equipment necessary to certify this. I don't know if he's produced any documents though, and it may be a lot more complicated than doing a test and printing a certificate!

2. More irritating: The economy service does not populate the big elco anymore. They did the last time, but this time, they give the choice to either not populated it or switch to the expensive service. Any idea how to workaround this?
image.png


The short answer: don't use it. Use multiple ...

Which JLC part number has this inductor? I today changed from
https://jlcpcb.com/parts/componentSearch?searchTxt=C3000379 (which is 12.3 x 12.3mm)
to
https://jlcpcb.com/parts/componentSearch?searchTxt=C5127462 (11.5 x 10mm),
but this still looks bigger than the one in your screenshot, and we do ...

Usually a hardware failure would cause an immediate trip, excessive load under current seems like a configuration issue.
What hardware are you using, and what parameters?

Where do you guys source the QCA7005 chips?


Pretty sure the answer is Aliexpress. There are several sellers there offering them. However perhaps Uhi can point to a specific seller as I imagine it's a bit of a gamble what you'll actually get.
Maybe one day we get to the stage where it'll be ...

johu wrote: ↑Sat Nov 25, 2023 9:32 am One German customer has lost drive after it worked fine for 40.000 km and apparently he's not the only one.

That's a shame. Do you know the the nature of these failures, just randomly fried IGBTs?

As long as the motor is not spinning, and no throttle is applied (ideally in neutral) then it's safe to disconnect the HV.

You can turn off the HV first, or the HV and LV simultaneously.