Cees
Posts: 4
Joined: Sun Jul 21, 2019 4:03 am
Delivery Date: 21 Jul 2019

Re: Stand alone OBC/PDModule EV system Can 2015

Mon Apr 20, 2020 2:53 am

Hi all,

I'm attempting the same (running OBC standalone) with a 2014 Gen2 one.
Because that's what I've got lying around in case you're wondering :).
I've got most of the original loom connecting the PDM to the type 1 charge port and 12V battery.
An Arduino + CAN shield are playing VCM on pins 24 & 25 of plug E61.
I'm sending out the 1F2 message carousel and get message 393 with data 20,70,00,00,20,00,00,1b in return.
So something's not quite right yet :o .

Would anyone have a recording of the relevant CAN traffic for a Gen2?
Ideally starting with the car off > plug in > wait for contactors to click > count to 20 > plug out.

Cheers,
Cees.

TrueSoln
Posts: 24
Joined: Mon Sep 30, 2019 2:44 am
Delivery Date: 01 Dec 2018

Re: Stand alone OBC/PDModule EV system Can 2015

Tue Apr 21, 2020 2:28 am

Cees wrote:
Mon Apr 20, 2020 2:53 am
I'm sending out the 1F2 message carousel and get message 393 with data 20,70,00,00,20,00,00,1b in return.
You sure about a message from OBC of ID 393,
never seen any one mention a message ID off 393 before on threads.

Not in this or main threads
https://docs.google.com/spreadsheets/d/ ... edit#gid=0

mux
Posts: 299
Joined: Sat Jan 13, 2018 3:52 am
Delivery Date: 13 Oct 2011
Leaf Number: 6177

Re: Stand alone OBC/PDModule EV system Can 2015

Tue Apr 21, 2020 3:30 am

Oh yeah, 393 exists on gen2, I have it in a bunch of my logs as well. It's basically completely static data all the time.

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Dala
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Joined: Sun Oct 28, 2018 11:24 am
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Leaf Number: 316851
Location: Finland
Contact: Website

Re: Stand alone OBC/PDModule EV system Can 2015

Tue Apr 21, 2020 11:37 am

TrueSoln wrote:
Tue Apr 21, 2020 2:28 am
You sure about a message from OBC of ID 393,
never seen any one mention a message ID off 393 before on threads.

Not in this or main threads
https://docs.google.com/spreadsheets/d/ ... edit#gid=0
That excel sheet is obsolete, all the cool kids are using proper database files now ;)
https://github.com/dalathegreat/leaf_can_bus_messages

Good info, I'll add it that on the AZE0 this comes from the PDM. Previously it was listed as unknown sender module.

nlspace
Posts: 206
Joined: Mon Jun 05, 2017 10:21 pm
Delivery Date: 06 Jun 2017

Re: Stand alone OBC/PDModule EV system Can 2015

Tue Apr 21, 2020 1:44 pm

Thank you for creating the DBC database files, trying to sort thru the spreadsheets was painful.

"The DBC file type was developed by Vector Informatik GmbH in the 1990s to provide a standard means of storing information described in a CAN network. Used by the automotive industry primarily, Vector database files (.dbc) have since become the de facto standard for exchanging CAN descriptions."

TrueSoln
Posts: 24
Joined: Mon Sep 30, 2019 2:44 am
Delivery Date: 01 Dec 2018

Re: Stand alone OBC/PDModule EV system Can 2015

Tue Apr 21, 2020 2:29 pm

Dala wrote:
Tue Apr 21, 2020 11:37 am
That excel sheet is obsolete, all the cool kids are using proper database files now ;)
https://github.com/dalathegreat/leaf_can_bus_messages
Can some one just delete all the sheet's in that google excel page and just have it so have URL then of where most update info is then.

TrueSoln
Posts: 24
Joined: Mon Sep 30, 2019 2:44 am
Delivery Date: 01 Dec 2018

Re: Stand alone OBC/PDModule EV system Can 2015

Sat Apr 25, 2020 4:24 pm

Been able now to source a new fuze,
But still not see it charge

When I turn it on, and activate CAN messages
I do see the light on the EVSE change to charging,
And I hear some relays in junction box click
But Im just not seeing any volts out of the box yet

Im wondering is I have woken it up and now need send cmd to say next step.
Any one actual got it to work yet on Gen1 or Gen2 charger from leaf ?

To know its working I would expect to see about 400v on the High Voltage Bus line
Is that what other would expect also as confirm it working?

nlspace
Posts: 206
Joined: Mon Jun 05, 2017 10:21 pm
Delivery Date: 06 Jun 2017

Re: Stand alone OBC/PDModule EV system Can 2015

Sat Apr 25, 2020 4:36 pm

Which fuse blew?

The charger will read the pack voltage and adjust the output to match that voltage, then ramp up the charging current to the pack and adjust up the voltage as needed to maintain the commanded set point current.

TrueSoln
Posts: 24
Joined: Mon Sep 30, 2019 2:44 am
Delivery Date: 01 Dec 2018

Re: Stand alone OBC/PDModule EV system Can 2015

Sat Apr 25, 2020 5:54 pm

nlspace wrote:
Sat Apr 25, 2020 4:36 pm
Which fuse blew?
Was the battery fuse, was playing with inverter cmd and forgot to pre charge

nlspace wrote:
Sat Apr 25, 2020 4:36 pm
The charger will read the pack voltage and adjust the output to match that voltage,
then ramp up the charging current to the pack and adjust up the voltage
as needed to maintain the commanded set point current.
Ahh ok, so wont actual see a spike in voltage when charger turns on.
Not able to check current so will just have to leave on longer and see if battery can messages show higher SOC.
nlspace wrote:
Sat Apr 25, 2020 4:36 pm
maintain the commanded set point current.
Is set point current one done with CAN message or relating to the charger we have ?

FYI, I just manged get a complete 2104 Nissan Leaf (Damaged one)
So will try and get working and can do some test on Gen2 with it.
Cut some wires and do some invasive test.

nlspace
Posts: 206
Joined: Mon Jun 05, 2017 10:21 pm
Delivery Date: 06 Jun 2017

Re: Stand alone OBC/PDModule EV system Can 2015

Sun Apr 26, 2020 8:22 am

TrueSoln wrote:
Sat Apr 25, 2020 5:54 pm
...
Is set point current one done with CAN message or relating to the charger we have ?

FYI, I just manged get a complete 2104 Nissan Leaf (Damaged one)
So will try and get working and can do some test on Gen2 with it.
Cut some wires and do some invasive test.
It is all done by CAN messages. Sounds like you have something fun to play with now.

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