alexbeatle wrote: ↑Sun Oct 30, 2022 12:34 am Also, which car your heat exchanger is from?

I believe this is a heat exchange from a golf GTE / A3 Etron. if you order one make sure you have the high pressure side pipe as it has a restrictor installed inside as the heat exchange does not have a TXV on it.

looking good, are you planning on doing a teardown ?

this connector might be the same
https://www.te.com/usa-en/product-2208277-3.html

as these are the values the control unit are giving I would say they are right. I'm assuming Muehlpower did some very accurate guess work. also just realized what's in his original post lines up with my results and theres a few mistakes in the wiki. as i am emulating the pump and the values are clea...

EV_Builder wrote: ↑Tue Sep 20, 2022 6:36 am This looks like CANBus, Muehlpower = LIN bus.

no this is definitely the linbus data from the compressor

I just simulated the AC pump to the climate control and got some values. They seem very different from muehlpower results but these are from VCDS so i trust them. i didnt not go thru all the error and status options but i will in the future. byte 1 errors to do later byte 2 status inverter temp 01 o...

its possible that the the other 2 bytes are fine value. Like 0-4bar representation. and that the other 2 bytes are course. So to get the total pressure you calculate the 0-4bar values and the course value and sum them up. I came across a current sensor who did this with 2 analog outputs. i will giv...

Great plot @pete9008 the data should be very accurate as i emulated the pressure sensor and read the values of a factory climate control module via diagnostic. its a shame i don't know what byte 3 and 4 do as i couldn't see any values on diagnostic change. I was trying to do the same with sending th...

hi its been a while. i had some free time today and was working decoding the pressure reading from the factory sensor. i connected upto the heater control on my work bench and send the can wakeup signal and connected VCDS to read the ac pressure sensor values. i then emulator the lin bus signals to ...

This should be the pin out for the i3 resolver

as always its been too long, but i decided to make my own custom housing, trying to keep everything compact. just got to cad up the capacitor. hard part is trying to keep all the water cooling but still be machinable

it would be interesting to see how VESC does there automatic FOC as that is also open source and a good controller.

have you scanned it with Vcds? check the airbag module as that is what sends the crash shutdown signal. there are also two removable fuses around the car which are supposed to make it safe to work on. what has happened to the car before this error appeared ? https://www.nfpa.org/-/media/Files/Traini...

i would just take the car for a normal mot and see if it passes first

Thanks @muehlpower sorry i miss that message. i will add it to the wiki

HI,

Does anyone have the LIN control signals for the VW / Audi GTE Etron coolant heater.

hopefully this helps. A_SIN_HI and A_SIN_LO Setpoint value: 22.4 ohm to 33.6 ohm A_COS_HI and A_COS_LO Setpoint value: 22.4 ohm to 33.6 ohm U_POS_HI and U_POS_LO Setpoint value: 13.6 ohm to 20.4 ohm Nominal values ‐-20 °C 318 kOhm ‐10 °C 175 kOhm ‐5 °C 132 kOhm 0 °C 101 kOhm 5 °C 78 kOhm 10 °C 60 kO...

Very nice! That manual says can or lin. I wonder if it's model specific or if they're all capable of both. They seem to be listed under different part numbers so i would assume they cant do both. i have sent messages out on all 64 channels and got the following replays 8e, ff ff ff ff ,71 enhanced ...

There pretty much the same apart from the 7PP. the letter at the end signifies a hardware or software revision normally minor changes. the 12E compressors was originally for the VW E-up but was also used on the early golf GTEs before they where changed to the 5QE ones all the ones i have seen are R1...

Thanks Johu,

yep the i3 option wasnt on the parameters page on the wiki so i missed it.

Happy New year all :D finally got some time to power up the board and look at the software. just a silly question is there any recommended default parameters to start off with. i remember the being talking of a lower dead time and wasnt sure where the output for the 32v converter was from. thought i...

came across this manual

Hi Love the Project great work, How goes your progress ? i would be slightly concerned with the high voltage wiring. have two split packs in parallel such a distance apart could possibly cause uneven loading on high load made worse when the battery try to balance afterwards. having wiring live outsi...

I think one is enough, anymore and you could find yourself running around the car everytime you go over a speed bump especially london speed bumps

Does your existing vehicle have an airbag module or is it something you want to add ?

if your adding you could use the old style inerita switch which would be alot cheaper and faster with alot less problem solving.

https://www.ebay.co.uk/itm/254172211379

like the link above.

Thanks Johu, Received mine yeasterday

Just a quick one do you have the pinout for the ampseal plug ?