search

kmalinich / node-bmw-client

A node.js powered interface for E38/E39/E53 + E6x/E9x BMW vehicles (Client side)
MIT License
145 stars 23 forks source link

PT-Can Backward Engineering #39

Open smartyy86 opened 3 years ago

smartyy86 commented 3 years ago

Hi there,

not precisely an issue more of an request: I registered here to be able to contact you, currently I'm developing a Module based on an Arduino and an additional Oil-Pressure Sensor which I want to use to check and verify the Oilpressure of the running Engine and compare it to the "nominal value" (in my case for S54 and S62 engines, because they are known to shear the oil in half). This module will constantly check if the Presure is in the required range, or if i.e. the Oil-Pump modulating Piston is broken. I would kindly ask you if you could help me with the PT-Can Codes, especially RPM, Throttle, Temperatur and maybe some other analog data which would be helpful you already seem to have reverse engineered, because I can't find data on the PT-Can anywhere else in the WWW (only K-Bus and K-Can). Thank you very much! Kind regards

Andrej

nberlette commented 3 years ago

@smartyy86 I saw this in my notifications and thought I'd chime in... A while back I found that in my E90 the PT-CAN pipes data to K-CAN (albeit at 1/5th of the speed), and with the same arbitration ID's as on PT-CAN. I believe its so the instruments/KOMBI can monitor both networks from the slower bus simultaneously.

I'll try to dig up an old forum post about it with other models, and if you dig around on the forums I'm sure you can find it. Saved me a lot of time and headache not tapping the PTCAN. Good luck

Artiik373 commented 1 year ago

@nberlette Hey, sorry to bother you and digging this up, but did you ever find it? I can't seem to find this information anywhere. I want to try to build a small display to keep track of temperatures, so not having the data coming from the PT-Can would be a deal breaker for using the K-Can. I also can't seem to find any of the PT-Can Values (such as Oil Temperature) in your or other e90 K-CAN dbc's.

Thanks for your time.