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by dopey
Sun Oct 23, 2022 4:17 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: CAN messages for pre-heat / cool and charge start/stop delays
Replies: 9
Views: 6299

Re: CAN messages for pre-heat / cool and charge start/stop delays

Yep, ordered an OVMS before I even picked up the i-miev :) Coming from a tesla, being able to see charge state and whether the car was locked is invaluable. I'm running the backend server myself in GCP. The app for OVMS gives you the information you want, but I did a slight modification for the serv...
by dopey
Sat Oct 22, 2022 8:13 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: CAN messages for pre-heat / cool and charge start/stop delays
Replies: 9
Views: 6299

Re: CAN messages for pre-heat / cool and charge start/stop delays

looking at the circuit diagrams, the remote module also sends out switched signals for heating/cooling If you've got an OVMS it should be possible to replicate these I do have OVMS, and quite a bit of can logging equipment now. Just lack the expertise to crack things -- also got busy with work :X T...
by dopey
Mon Aug 29, 2022 12:29 am
Forum: Batteries and Battery Management
Topic: Losing Charge When Parked Up
Replies: 20
Views: 1190

Re: Losing Charge When Parked Up

If I am not mistaken the traction battery is physically disconnected when the car is parked, making any sort of actual consumption 'impossible'. -- one reason heater, etc does not work until the car is in 'Ready'. The range gauge is some sort of estimate based off consumption+previous driving. Any c...
by dopey
Fri Aug 12, 2022 3:33 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

I'd guess those could be from the diag code reading and replying, but need to dig in. On your earlier comments about the way of writing the D0 bit 15 and being confusion. I believe this is from the C code used in OVMS now. The C syntax is D[0] & 15 to get bytes 0-3 of D0. 15 being Binary of 1111...
by dopey
Thu Aug 11, 2022 12:49 pm
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

I don't know how much one can alter the DBC format, since it's the kvaser standard. The positive with having a .DBC is it can be imported by majority of tools one would use working with canbus logs (savvycan, asammdf, kvaser, etc). If there is a spec to generate such a view I'm happy to code it :) h...
by dopey
Thu Aug 11, 2022 1:10 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

Lots of new or unknown high-priority PIDs were showing in the third raw capture file, 9.8Mb. We need a way to tag the data stream for significant events, such as sending commands, or getting DTCs, pressing a button or twisting a knob. One idea would be to press the brake pedal just before the actio...
by dopey
Wed Aug 10, 2022 1:41 pm
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

When you did the testing, did you manually turn the fan speed knob or did the iCarSoft Max do the actuation? So in the first test i found about 333 instances of the 3A4 pid, for example (1660146840.995169) slcan0 3A4# C1 19 BC D0 92 56 00 00 (1660146858.595504) slcan0 3A4# C1 1 9 BC D0 9 5 56 00 00...
by dopey
Wed Aug 10, 2022 9:41 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

I'll just pretend I didn't spend hour(s) staring at those tables trying to make my own joins. :) I did my first sniffing of iCarSoft Max. Few raw logs available here: https://github.com/slackspace-io/imiev-dbc/tree/main/rawLogs 1.) Actuated max fan speed 5x 2.) Actuated 'Max Heat' 5x 3.) New diagnos...
by dopey
Wed Aug 10, 2022 5:22 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

Wow, Jacob thank you for diving in to work on all this. i'm just a bit banger when it comes to CAN, but willing to help if i can. i don't know which GUI that Dala the Great (Daniel Ă–ster) is using over on the Leaf CAN buss .dbc activities, but it seems to be quite a useful tool. https://github.com/...
by dopey
Tue Aug 09, 2022 1:49 pm
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Decyphering iMiEV and iON CAR-CAN message data
Replies: 179
Views: 145095

Re: Decyphering iMiEV and iON CAR-CAN message data

First attempts at dbc is up; https://github.com/slackspace-io/imiev-dbc I am using the canmatrix python library. I'll add a readme, requirements, virtualenv steps, etc tomorrow. I initially started to just use the script to generate the dbc, and effectively hardcode the python to generate the dbc. T...

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