Stand alone OBC/PDModule EV system Can 2015 - SOLVED
- Thread starter 49thdiver
- Start date
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mafify said:Curious question, The SOC is updating on the battery standalone? :shock:
The SOC and SOH comes from the BMU that's inside HV battery.
Lots people make up small loom to power it up and get can messages.
If you google will find wiring info to connect an odb2 plug to it and use leaf spy if wanted
TrueSoln said:
I am getting the 55B messages from the BMS already, but it doesn't update. That is my main issue. Tried to send 50B, 1F2, 1D4, 11A and 50C.
What I think is there is a certain msg from the VCM that keep the BMS updating values
Only worked on the 24kWh but no response from the AZE01 30,40 and 62 kWh.
dala is helping me so far in that thread: https://mynissanleaf.com/viewtopic.php?p=611329#p611329
mafify said:
My battery is on its own Can bus line so only reading info from it
Nothing sent to it and SOC updates go up as battery charges is what im seeing
You may find need to charge some time to get a SOC change
But kw value changed when power getting to it so can look for that.
I dont have a NISSAN VCM so nothing keeping any values
Just a battery on own CAN line,
With Motor, Inverter, PDM/OBC
Did you check you have all wiring correct
Pin 29 & 30 going to correct pins on the charger port
I put info back a few pages
https://mynissanleaf.com/viewtopic.php?f=44&t=30915&start=120
TrueSoln said:
So a quick recap, I have 24, 30, 40 and 62 kWh packs. when I send the 50B wake up signal , I can make SOC updates on only 24 and 30 kWh. It failed on the 40 and 62 kWh and I both backs are a ZE1 2018+ model
Also, for me to see the SOC update, I have a discharge and charge system at 20 Amp which can change the SOC in very high range. I can see the voltage updates as expected
Another question too . So I only have the +IGN and the +12 to power the BMS. 3 relays which is Neg, Pos, Pre and 1 ground. last is the CAN H and CAN L. To charge and discharge the battery, there is a high terminal connected to the system that discharge and charge the battery.
I can't use this two pins as you mentioned with the charger port because there is no one . what do they actually does, do they tell the BMS that battery is charging? :shock:
. So I only have the +IGN and the +12 to power the BMS. 3 relays which is Neg, Pos, Pre and 1 ground. last is the CAN H and CAN L. To charge and discharge the battery, there is a high terminal connected to the system that discharge and charge the battery. I can't use this two pins as you mentioned with the charger port because there is no one
. what do they actually does, do they tell the BMS that battery is charging? :shock:
49thdiver
Well-known member
TrueSoln said:
This sounds great just wondering about the 10ms and 100ms timing:
I have recorded similar 390/393 messages on a working leaf.
My recordings of 50B & 11A are the same
My recordings of 1F2, 1DC,1D4 are different
My recordings of 1DB are similar
5BC is also different
I note that you are using the same msg as Jack Bauer except for 11A & 1DB
See questions below regarding timing.
for clarity do you send the groups of 4 each 10ms or 100ms ie at 10ms,11ms,12ms,13ms and 101ms,102ms,103ms,104ms or one of the group at each 10ms or 100ms interval
Hoping to continue testing on my setup this weekend. Good luck with the boating.
Certainly what you have offered is exciting news.
With thanks.
Make a function that goes off every 10ms
Then you send first message in pattern.
Next time after 10ms send second message in pattern.
Do that for all 4 then start at first again.
In the 10ms function.
You can send 1 from each of the patterns at that time.
Then you need same setup for the 100ms patterns
Then you send first message in pattern.
Next time after 10ms send second message in pattern.
Do that for all 4 then start at first again.
In the 10ms function.
You can send 1 from each of the patterns at that time.
Then you need same setup for the 100ms patterns
49thdiver
Well-known member
Thanks been working on it this morning, just working on testing that the output looks right and will then test on charger any moment now. Thanks for your input you have confirmed my thoughts.
As I am re-writing the code I have only found some minor changes in the message content.
Fingers crossed.
As I am re-writing the code I have only found some minor changes in the message content.
Fingers crossed.
49thdiver
Well-known member
@TrueSoln
Very Close now.
Relays in the PDM are clicking in a rhythmical sequence attempting to connect and charge.
I have never had it do this before, very exciting.
I will be checking msg data again looking for an error or sequencing issue.
It may be Sunday before I can get back to it.
Hopefully you have not been waiting on me and have been able to get out in the boat.
Video !!
Peter
Very Close now.
Relays in the PDM are clicking in a rhythmical sequence attempting to connect and charge.
I have never had it do this before, very exciting.
I will be checking msg data again looking for an error or sequencing issue.
It may be Sunday before I can get back to it.
Hopefully you have not been waiting on me and have been able to get out in the boat.
Video !!
Peter
49thdiver said:@TrueSoln
Very Close now.
Relays in the PDM are clicking in a rhythmical sequence attempting to connect and charge.
I have never had it do this before, very exciting.
Keep going, sounds like you close.
49thdiver said:
@49thdiver im just updating my controller to work with my mobile phone app so can monitor data
Need to see temp, torque, rpm and KW bat using
So we can see what speed best to run at and work out the range
Hope to try new interface tomorrow
49thdiver
Well-known member
Very interested in the torque, rpm, speed/range as I understand that the hydro-dynamics of pushing water vs spinning wheels is very different. I have heard one "marine expert" suggest that high thrust at low rpm is not as efficient as piston engines. I am a boater sporting twin 50's on a 17ft aluminum catamaran hull, would love to switch to electric. Back to reviewing the code for the charger at the moment very excited to have got some relay action in the PDM/OBC.
49thdiver
Well-known member
@TrueSoln
False alarm, relays were not clicking because of my code.
I had forgotten to disconnect the canbus to the VCM, my code was interfering with the VCM trying to start charging. Frustrating to be so close but so far.
I am back to analyzing the recordings of it working with the VCM (whole car) connected.
I am using the Kvaser data base as a reference to eliminate as you have done unneeded inverter and AC commands. Due to the charge voltage and current there is a lot of variation in the command content. The details slowly drive you crazy.
Stay tuned, Peter
False alarm, relays were not clicking because of my code.
I had forgotten to disconnect the canbus to the VCM, my code was interfering with the VCM trying to start charging. Frustrating to be so close but so far.
I am back to analyzing the recordings of it working with the VCM (whole car) connected.
I am using the Kvaser data base as a reference to eliminate as you have done unneeded inverter and AC commands. Due to the charge voltage and current there is a lot of variation in the command content. The details slowly drive you crazy.
Stay tuned, Peter
49thdiver said:
Have you checked your wiring,
a) Power to Pin 18 & 19
b) CAN is 11 & 27
c) 29 and 30 need to be connected to the port plugging the ac charger in to as its can lines also
(You sure you ac home charger working, i had a left also at home to make sure of that)
e) The main Aux 12Vbattery needs the GND and 12V leads connect from OBC/PDM and battery
This is the pin out for Plug F23 for older Gen2
49thdiver
Well-known member
nlspace said:
That's correct the diagram is harness side or H.S. as indicated on the drawing in the manual. You can see from the photo of the connector that the diagram is the mirror. We would not have got this far with the connector being backwards
but certainly a good tip for those watching.
