Search found 955 matches

by catphish
Thu Apr 11, 2024 7:48 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

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:
by catphish
Sun Feb 18, 2024 7:00 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

I love your (I assume 3D printed) light bulb test rig :)
by catphish
Fri Feb 16, 2024 10:40 am
Forum: Tesla
Topic: Rear SDU on foc?
Replies: 3
Views: 537

Re: Rear SDU on foc?

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 though...
by catphish
Tue Feb 13, 2024 11:11 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

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. I per...
by catphish
Tue Feb 13, 2024 8:47 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

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...
by catphish
Fri Jan 26, 2024 6:51 pm
Forum: Vehicle Control (VCU)
Topic: Zombieverter and Tesla SDU Openinverter
Replies: 7
Views: 6082

Re: Zombieverter and Tesla SDU Openinverter

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 beha...
by catphish
Thu Jan 25, 2024 1:05 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

johu wrote: Thu Jan 25, 2024 8:26 amI left PP dangling
Giggles.
by catphish
Sun Jan 14, 2024 1:13 am
Forum: News
Topic: The Garage is back! (kindof)
Replies: 5
Views: 1358

Re: The Garage is back! (kindof)

Awesome work! Looks like it's filling up fast!
by catphish
Sun Dec 24, 2023 10:32 am
Forum: Vehicle Control (VCU)
Topic: EMC proof of the zombieverter
Replies: 13
Views: 15796

Re: EMC proof of the zombieverter

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!
by catphish
Tue Dec 19, 2023 11:14 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

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 smaller ...
by catphish
Mon Dec 18, 2023 2:35 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

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 not...
by catphish
Wed Nov 29, 2023 8:15 pm
Forum: General
Topic: Investigating using sine f/w
Replies: 6
Views: 5190

Re: Investigating using sine f/w

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?
by catphish
Sun Nov 26, 2023 11:28 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

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 worth sh...
by catphish
Sat Nov 25, 2023 2:41 pm
Forum: Tesla
Topic: How to not kill a tesla drive unit
Replies: 19
Views: 10752

Re: How to not kill a tesla drive unit

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?
by catphish
Tue Nov 07, 2023 12:22 pm
Forum: Tesla
Topic: About to spin for the 1st time, but how to properly turn OFF the system [SOLVED]
Replies: 2
Views: 76831

Re: About to spin for the 1st time, but how to properly turn OFF the system [SOLVED]

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.
by catphish
Sun Oct 29, 2023 8:50 pm
Forum: Tesla
Topic: Tesla LDU board problem
Replies: 16
Views: 7554

Re: Tesla LDU board problem

Wifi is disconnecting every now and then .. sometimes parameters won't seem so show up to web interface and might take a long time to appear. This is annoying but totally normal on many older openinverter boards. I've had these problems on most boards I've used (though I think the latest boards use...
by catphish
Thu Oct 26, 2023 7:41 pm
Forum: Classifieds
Topic: Wanted: Arduino programmed in North America
Replies: 2
Views: 4440

Re: Wanted: Arduino programmed in North America

If I'm understanding correctly, the program already exists.

I know you said you don't have much time, but I'd say loading an existing program onto an Arduino is extremely easy. I would strongly suggest that you at least try. The page you linked provides a program that will do this.
by catphish
Fri Oct 20, 2023 9:36 pm
Forum: Inverters / Motor Controllers
Topic: Accelerator pedal dead zone
Replies: 104
Views: 76495

Re: Accelerator pedal dead zone

uhi22 wrote: Fri Oct 20, 2023 8:52 pm Very good. But really for the esp32-web-interface?
Yeah, I definitely opened that in the wrong project! Fixed now :)
by catphish
Fri Oct 20, 2023 8:32 pm
Forum: General
Topic: Feature and Issue tracking
Replies: 9
Views: 162656

Re: Feature and Issue tracking

I've created an issue for another frequently requested feature - dead-zone free regen throttle mapping: https://github.com/jsphuebner/stm32-sine/issues/38

Please could we create some tags to properly label "feature requests" and "bugs"?
by catphish
Fri Oct 20, 2023 8:31 pm
Forum: Inverters / Motor Controllers
Topic: Accelerator pedal dead zone
Replies: 104
Views: 76495

Re: Accelerator pedal dead zone

I've created a Github issue to track this feature request: https://github.com/jsphuebner/stm32-sine/issues/38
by catphish
Fri Oct 20, 2023 7:45 pm
Forum: Inverters / Motor Controllers
Topic: Accelerator pedal dead zone
Replies: 104
Views: 76495

Re: Accelerator pedal dead zone

One nice thing about making regen proportional to speed is that as well as eliminating the deadzone, it also replaces brkrampstr.
Please see my old thread and patch here: viewtopic.php?p=42509
by catphish
Fri Oct 20, 2023 7:32 pm
Forum: General
Topic: Feature and Issue tracking
Replies: 9
Views: 162656

Re: Feature and Issue tracking

I think this is an excellent step forward. Thank you!
by catphish
Thu Oct 05, 2023 9:08 am
Forum: Tesla
Topic: Tesla small drive unit help
Replies: 4
Views: 3086

Re: Tesla small drive unit help

Please post your configuration and wait until someone looks over it to make sure you don't break anything. It sounds like you haven't calibrated your throttle input, which is definitely necessary
by catphish
Sun Oct 01, 2023 10:25 am
Forum: Tesla
Topic: SDU: No udc voltage
Replies: 25
Views: 12077

Re: SDU: No udc voltage

If you're definitely seeing 186V going into the inverter and at the same time, udc is showing near zero then one of two things must be wrong:
1) The udc measurement circuit is broken.
2) The udcgain parameter is wrong

I'm not sure if this helps you, but I can't think what else could be wrong here.
by catphish
Sun Sep 24, 2023 11:31 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 594
Views: 9460658

Re: Develop a QCA7000 board?

I've just had a look at the FOCCCI board (actually mostly just the buck regulator), and I would strongly recommend making some layout improvements here for the next revision of the board. In particular, the current paths for the input and output capacitors are much too long. 1) The input capacitor (...