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Chademo with Leaf PDM on Zombi VCU
Posted: Tue Feb 11, 2025 5:20 pm
by Rustybkts
Can the Zombi VCU control Chademo when the Leaf PDM is enabled which allows the use of the Leaf charger.
As soon as Chademo is selected on "Interface", the HV contactors close unless "Chargemodes" is selected to Ext_Digi.
Normally for Leaf PDM control it is set to Leaf_PDM.
I can use the Orion BMS for Chademo control but will need to trigger the HV contactors and assume that the HV request pin 51 is used to be triggered by the BMS.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Tue Feb 11, 2025 6:13 pm
by tom91
I believe the Nissan PDM as the Chademo gateway is not implemented.
Gen 1 and 2 are in the PDM, Gen 3 is via the VCU.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 11:31 am
by Rustybkts
I have HVreqFunc set to HVrequest but pin 51 doesn't work when connected to 12v high or ground.
Is this inhibited by any other input/setting and is high or low for on.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 11:41 am
by tom91
Okay pin function HVrequest is a dead end in code.
Use DCFCRequest with the Chademo DCFC set, it should enable properly on and off.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 12:06 pm
by Rustybkts
DCFCRequest not enabling HV contactors on pin 51 when set.
Tried using DCFCRequest on pin 50 GP12VINFunc but nothing.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 12:21 pm
by tom91
I have never used it and have no experience with Chademo on the Zombie, so other will need to chime in.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 12:38 pm
by tom91
Setting up my bench test zombie.
Code: Select all
Interface: Chademo
Charger: None
Pin Function DCFCRequest on pin 51 Hvrequest
Toggle Charge Mode on and off.
Code: Select all
Interface: Chademo
Charger: Leaf PDM
Pin Function DCFCRequest on pin 51 Hvrequest
No need for input it goes to AC charging, not good. Will need to review, Chademo needs to be reviewed as the different charger interfaces work slight different.
Chademo is not correctly setup to allow chargers do its own thing right now as its a dedicated DC interfaces and needs another way to do the AC charging.
All this is on the list of things to overhaul and clean up.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 1:45 pm
by Rustybkts
Yes I found that selecting Chademo on Interface with Charger set to Leaf PDM brings in the HV immediately as Chademo requires Ext_Digi.
I am not using the Zombi VCU for Chademo so only require the HVRequest input to pull in the HV contactors. The Orion will do the rest with possibly more control than the Zombi VCU offers.
From my perspective, I only require the Leaf PDM AC charging to detect 16A as well as 32A plugs (0x390 byte_5 0x84 and 0x88), HVRequest to pull in the HV contactors and some way of reducing the power drain on the 12v battery supply to the Leaf inverter and PDM as it is almost an amp in total.
Would be happy to beta test any changes.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 3:41 pm
by tom91
Rustybkts wrote: ↑Wed Feb 12, 2025 1:45 pm
Leaf PDM AC charging to detect 16A as well as 32A plugs (0x390 byte_5 0x84 and 0x88)
Where you find this info or share this testing?
Rustybkts wrote: ↑Wed Feb 12, 2025 1:45 pm
power drain on the 12v battery supply to the Leaf inverter and PDM
Sleep is coming with the updated Leaf CAN message generation.
Rustybkts wrote: ↑Wed Feb 12, 2025 1:45 pm
HVRequest input to pull in the HV contactors
Will look into this, needs working out properly and not just for your specific situation.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 4:33 pm
by Rustybkts
tom91 wrote: ↑Wed Feb 12, 2025 3:41 pm
Where you find this info or share this testing?
On an earlier thread last reply
viewtopic.php?t=6027
Sleep is coming with the updated Leaf CAN message generation.
I assume it will also rectify the requirement for a power reset of the VCU after each charge session
viewtopic.php?t=6088
Will look into this, needs working out properly and not just for your specific situation.
Understood but just needs to enable the HV contactor sequence when the Leaf PDM is selected and HVreqFunc is set to HVrequest and pin 51 enabled.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Wed Feb 12, 2025 4:52 pm
by tom91
Can you measure the Proximity to ground resistance of the two plugs used to produce this please.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Thu Feb 13, 2025 8:18 am
by J0hannes
Nissan PDM related, do you have PDM pin 9 energized when trying to have DCFC contactors controlled?
It's and additional layer of safety Nissan has implemented
Also, I don't know if this has been noted earlier, but the PDM has a plug in signal for indicator lamp. Pin 10 is pulled down when PDM thinks it has a charging plug. I'll be using this for a dash light as it's in Leaf.
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Thu Feb 13, 2025 5:18 pm
by Rustybkts
tom91 wrote: ↑Wed Feb 12, 2025 4:52 pm
Can you measure the Proximity to ground resistance of the two plugs used to produce this please.
The 32A EVSE lead is 222R and 16A lead is 680R
Re: Chademo with Leaf PDM on Zombi VCU
Posted: Thu Feb 13, 2025 5:25 pm
by Rustybkts
J0hannes wrote: ↑Thu Feb 13, 2025 8:18 am
Nissan PDM related, do you have PDM pin 9 energized when trying to have DCFC contactors controlled?
It's and additional layer of safety Nissan has implemented
Also, I don't know if this has been noted earlier, but the PDM has a plug in signal for indicator lamp. Pin 10 is pulled down when PDM thinks it has a charging plug. I'll be using this for a dash light as it's in Leaf.
Will try the charge lamp signal from the PDM as the 106 Electrique dash has one.
My AC charger is working so not sure if I will need the PDM pin 9 utilised.
CHAdeMO will be controlled solely by the Orion as long as I can enable the HV contactor sequence.