Unwanted "over current" messages Prius20  [SOLVED]

Topics concerning the Toyota and Lexus inverter drop in boards
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alehandro
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Unwanted "over current" messages Prius20

Post by alehandro »

Hi guys. My setup consists of a Prius20 inverter and a Lexus motor. When I use it at full power (160A 180V battery current), I sometimes get the inverter to stop due to excess current, this creates inconvenience. With the settings I could not get it to work without failures. Maybe you have a firmware version with the ability to not receive current limit messages?
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Re: Unwanted "over current" messages Prius20

Post by johu »

I think I will include this in the next release. Had similar issues and created a FW on the fly that ignores the input and just keeps going. Runs fine.
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alehandro
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Re: Unwanted "over current" messages Prius20

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johu wrote: Thu May 02, 2024 7:03 pm I think I will include this in the next release. Had similar issues and created a FW on the fly that ignores the input and just keeps going. Runs fine.
Oh, that's great Johannes, I'll wait for the new firmware release for normal operation without a current error. Thank you for all the work!
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Re: Unwanted "over current" messages Prius20  [SOLVED]

Post by johu »

You can download a preliminary binary here: https://github.com/jsphuebner/stm32-sin ... 8942103986
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Re: Unwanted "over current" messages Prius20

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johu wrote: Fri May 03, 2024 4:40 pm You can download a preliminary binary here: https://github.com/jsphuebner/stm32-sin ... 8942103986
It looks like I couldn't make friends with the demo versions of the firmware 8-). I downloaded the binary file via the web interface and could no longer see the parameters in the console. I thought maybe I had damaged the bootloader and repeated the installation via St-link. And so, when I use the bootloader version 4 and the hex file, I see the download process happening without any comments (I rely on this), after that I again do not see the parameters in the web interface. Okay, I tried everything again with bootloader version 5 and now I can see the 5.34 parameters in the console. But as soon as I restarted the board's power, the parameters are no longer displayed, even here http://192.168.4.1/cmd?cmd=json. I repeated the download several times, the parameters disappeared as soon as the board was restarted. Although the LED blinks as if everything is in order. I took a screenshot immediately after installing the firmware without turning off the power. I decided to download the previous version 5.32, the parameters do not disappear.
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Re: Unwanted "over current" messages Prius20

Post by alehandro »

A snapshot before the board was powered off. If you restart, only the web interface without parameters will be visible. I will assume that the file 5.34, after being extracted from the zip folder, somehow affects the memory of the stm32.
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Re: Unwanted "over current" messages Prius20

Post by johu »

Wait, I had this yesterday also. Can you put the latest firmware on the ESP module
https://github.com/jsphuebner/esp8266-web-interface
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Re: Unwanted "over current" messages Prius20

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johu wrote: Tue May 07, 2024 7:10 am Wait, I had this yesterday also. Can you put the latest firmware on the ESP module
https://github.com/jsphuebner/esp8266-web-interface
Thanks Johannes, updating the web interface helped. Now I see the parameters in the console even after a reboot VCU.
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Re: Unwanted "over current" messages Prius20

Post by alehandro »

johu wrote: Fri May 03, 2024 4:40 pm You can download a preliminary binary here: https://github.com/jsphuebner/stm32-sin ... 8942103986
Now stopping the inverter due to the “over current” message is no longer a concern. Thank you very much, Johannes. :lol:
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Re: Unwanted "over current" messages Prius20

Post by johu »

Great 👍
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