Yeah, unfortunately you're probably right. But, the 2013 car I have registers 0xBD which is way too many AH. It very well might be capacity of some sort. GIDS maybe? Oh well, the search continues.
On Jan 27, 2017 6:37 AM, "Cor van de Water via EV" <ev@lists.evdl.org> wrote: > Sounds like that byte is the battery capacity in 0.5Ah since when new it > is reported as 66 Ah which would be 132 or 84h and slowly degrading from > there. > Cor > > > On Jan 27, 2017, at 2:28 AM, Tom Parker via EV <ev@lists.evdl.org> > wrote: > > > >> On 27/01/17 13:36, Collin Kidder via EV wrote: > >> > >> Any logs anyone could send me from a Leaf would be great. But, I might > >> be on to something. Byte 4 (the fifth byte if you start counting at 0) > >> is always a constant value for a given car. It stays the same across > >> all 0x5C0 frames, it stays the same whether driving or charging. Every > >> vehicle I've got a capture from has a unique byte here that never > >> changes with any captures from that car no matter what else the car is > >> doing. Pretty much all of the rest of the bytes change as you charge > >> or discharge. I think what might be happening is that this byte is a > >> sort of identifier that the rest of the system uses to see whether the > >> pack is the same one it last knew. 256 unique values might not seem > >> like a lot but that means that your odds of getting a pack with the > >> same byte as your old pack is 1/256 or less than 0.5% - not so likely. > >> One way to test this would be to set up a man in the middle > >> configuration and then change that byte and see if it makes the car > >> puke. Or, take a car with a replaced pack and try to change the > >> reported byte from the new LBC to the reported byte from the old LBC > >> and see if the car then wants to work better. > > > > I don't see a constant here. With the exception of one capture, each > capture from my car has a single value in byte 4 but it is decreasing > (except once when it went down and up) slowly over the last year or so for > which I have data: > > > > Each line represents one capture and has the following format > > byte_number value_in_hex:count_in_decimal > > > > 4 84:7 > > 4 84:12 > > 4 84:14 > > 4 84:80 > > 4 84:252 > > 4 84:128 > > 4 84:10 > > 4 84:14 > > 4 82:1607 > > 4 82:40 > > 4 82:22 > > 4 82:91 > > 4 80:40 > > 4 80:4332 > > 4 7e:14 > > 4 7e:53 > > 4 7c:531 fe:1 > > 4 7c:36 > > 4 7c:19 > > 4 7c:6 > > 4 7a:72 > > 4 7c:8 > > 4 7c:22 > > 4 7c:8 > > 4 7c:28 > > 4 7c:30 > > 4 7c:1 > > 4 7a:40 > > 4 7a:165 > > 4 7a:38 > > 4 7a:54 > > > > The exception was captured during remote climate control, and I have 531 > frames with 7c with one frame containing fe about 2/3 of the way through > the capture: > > > > 157227 2017-01-07 08:38:05.031301 LBC 0x5c0 16 STD: > 0x000005c0 c0 72 74 00 7c d4 00 00 > > 157533 2017-01-07 08:38:05.531215 LBC 0x5c0 16 STD: > 0x000005c0 00 fe fe 00 fe fc 00 00 > > 157227 2017-01-07 08:38:05.031301 LBC 0x5c0 16 STD: > 0x000005c0 c0 72 74 00 7c d4 00 00 > > > > I have 2 short captures made on the same day from a Gen 2 and there it > alternates between two values: > > > > 4 ba:5 c0:2 > > 4 ba:8 c0:4 > > _______________________________________________ > > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > > Read EVAngel's EV News at http://evdl.org/evln/ > > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20170127/455724ef/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
