Nissan Leaf Gen3 inverter

Nissan Leaf/e-NV200 drive stack topics
Kelju
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Re: Nissan Leaf Gen3 inverter

Post by Kelju »

johu wrote: Thu Sep 02, 2021 7:51 pm Early forum release, thanks :)
You can pull more than 225A short term. I've also tuned my inverter to about 120 kW (with the openinverter board) and ran it on the 24 kWh pack. Even went full throttle for a few minutes doing a speed not allowed in Finland ;)
This is great news!
Did you do this with the Gen3 motor?
I haven't worked on this basically since I blew up an IGBT.
It would be nice to understand what went wrong in my setup.
Did you use the adapter board that I send you?
I recall you mentioning, that some connections were missing from it. Would you mind posting those remarks here. I could then implement those changes to the board.
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Re: Nissan Leaf Gen3 inverter

Post by Bratitude »

Kelju wrote: Sat Nov 13, 2021 2:22 pm
johu wrote: Thu Sep 02, 2021 7:51 pm Early forum release, thanks :)
You can pull more than 225A short term. I've also tuned my inverter to about 120 kW (with the openinverter board) and ran it on the 24 kWh pack. Even went full throttle for a few minutes doing a speed not allowed in Finland ;)
This is great news!
Did you do this with the Gen3 motor?
I haven't worked on this basically since I blew up an IGBT.
It would be nice to understand what went wrong in my setup.
Did you use the adapter board that I send you?
I recall you mentioning, that some connections were missing from it. Would you mind posting those remarks here. I could then implement those changes to the board.

I believe this is just the Gen2 inverter with the oi board here.

Would you mind posting your gen3 adapter board design board here?
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OlegAzeo
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Re: Nissan Leaf Gen3 inverter

Post by OlegAzeo »

there will be no fuse problems. On all versions 24,40,62 batteries - 225A and 500V or 450V.
it is short circuit only.
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Re: Nissan Leaf Gen3 inverter

Post by OlegAzeo »

my 160kw inverter installed on leaf 2014 gives max 145kw and 400A, why is that? changed the multiplier and there is no difference at the maximum current.
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Re: Nissan Leaf Gen3 inverter

Post by OlegAzeo »

Dala wrote: Fri Nov 12, 2021 1:11 pm I couldn't resist, so I installed the 160kW inverter with the 40kWh pack. No fuse problems so far :)

Fuse on 40kw and 62kw have same p/n.
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Leo M
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Re: Nissan Leaf Gen3 inverter

Post by Leo M »


This is the same as Gen3. Only the 450A assembly .Nissan Note e-Power
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Re: Nissan Leaf Gen3 inverter

Post by earthman »

drprox wrote: Thu Oct 28, 2021 6:19 am Its simply an amplifier circuit to reduce the amplitude of the phase current signals, so the inverter drives more current to achieve its target 'torque'.
please tell me in more detail, I'm not very good at electronics, but I have a familiar master, I need to explain to him what needs to be done)
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Re: Nissan Leaf Gen3 inverter

Post by Kelju »

Has anyone measured the quiescent current (or rather the sleep current) consumption of the Gen3 inverter?
As soon as the inverter is supplied with KL30 supply (permanent 12V on pins 1 and 6), the inverter spits out a couple of CAN messages and the input current settles around 450mA and stays there while the CAN communication stops.
Seems to be a quite high consumption to draw from the 12V battery while shut down.
I thought the inverter is waiting for KL15 (ignition switch) signal for some time and then would go to sleep, but this did not happen, at least not in a minute or two.
When KL15 is supplied, the consumption does not noticeably increase.

Any thoughts?
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Re: Nissan Leaf Gen3 inverter

Post by Kelju »

Today I continued to test the KL30 (or T30 as in "terminal 30") current consumption. I left the KL30 on for over an hour and sure enough the consumption stayed around 450mA the whole time.
Should this thing be commanded to sleep via CAN?
@Jack Bauer, if you still have your setup available, could you check the consumption on yours?
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Dala
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Re: Nissan Leaf Gen3 inverter

Post by Dala »

So I here have some pictures with the "differences" between the 110kW and 160kW inverters:
https://imgur.com/a/LhKM37f

Seems like all components are the same and only firmware will determine the power output.
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Re: Nissan Leaf Gen3 inverter

Post by johu »

So still worthwhile openinvertering it then :) I mean the 110 kW version at least.
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Dala
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Re: Nissan Leaf Gen3 inverter

Post by Dala »

2013 LEAF with a 110kW inverter and CAN-bridge putting down some nice smooth graphs 8-)
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Re: Nissan Leaf Gen3 inverter

Post by lsh3rd »

I'm curious if you ever baselined the car with the 80KW inverter and if it shows more than 80KW at the wheels? I'm sure we'll be looking forward to you doing the same with the 160KW inverter!
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Dala
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Re: Nissan Leaf Gen3 inverter

Post by Dala »

lsh3rd wrote: Wed Jan 05, 2022 6:42 pm I'm curious if you ever baselined the car with the 80KW inverter and if it shows more than 80KW at the wheels? I'm sure we'll be looking forward to you doing the same with the 160KW inverter!
Yes this is the stock numbers from the 80kW inverter:
Image

And then the 110kW in the previous post. Sadly they didn't have a 160kW inverter, these are quite rare still!
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Re: Nissan Leaf Gen3 inverter

Post by schildere »

johu wrote: Fri Nov 26, 2021 10:52 am So still worthwhile openinvertering it then :) I mean the 110 kW version at least.
Sorry for maybe hi-jacking this thread, but I can't get my hands around this: when using Brain Board Rev 3 for Leaf Gen 2 on a 110kW motor/inverter (Gen 3): will it work (as the board is built for Gen 2)? And, if so, will it provide more power, of does that require a firmware upgrade of the Brain Board later on?

Happy to hear :)
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Re: Nissan Leaf Gen3 inverter

Post by Bratitude »

schildere wrote: Tue Jan 25, 2022 9:09 pm
when using Brain Board Rev 3 for Leaf Gen 2 on a 110kW motor/inverter (Gen 3): will it work (as the board is built for Gen 2)?
*leaf gen 2 inverter

yes, the em57 motor, is the same for every leaf 2012 onward. the inverters are different. theres a 80, 110, and 160kw version of the inverter. so any of those inverters will work with the em57.
Currently theres only a replacement brain board for the gen2 (80kw) inverter, which has so far has been pushed to about 140kw.

theres currently no fully functional replacement boards for the gen3+ 110/160kw inverters.
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Re: Nissan Leaf Gen3 inverter

Post by schildere »

Thanks! To get the most of the 110kW with the Gen 2 board, is that a matter of buying and installing the board and change settings, or is it not that simple? Or does it require soldering and/or tinkering with the board for Gen 2 to get the it working on a 110kW inverter with more power than the 80kW?
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Re: Nissan Leaf Gen3 inverter

Post by Bratitude »

schildere wrote: Wed Jan 26, 2022 10:23 am Thanks! To get the most of the 110kW with the Gen 2 board, is that a matter of buying and installing the board and change settings, or is it not that simple? Or does it require soldering and/or tinkering with the board for Gen 2 to get the it working on a 110kW inverter with more power than the 80kW?
I think you don’t understand that a Gen2 board dose not work with the 110kw inverter. It only fits in the Gen2 80kw inverter
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eCRX
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Re: Nissan Leaf Gen3 inverter

Post by eCRX »

The generation of the "brain board" and the generation of the leaf inverter are two separate things. The leaf inverter is just one of inverters that you can do a brain transplant on.

The purpose of this discussion thread is to a) as a community, figure out how to adapt and configure the brain board into the leaf gen 3 inverter. b) to torcher lurkers like me with anticipation. :cry:
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Re: Nissan Leaf Gen3 inverter

Post by schildere »

That clarifies a lot, thanks! + sorry for my misunderstanding.
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Re: Nissan Leaf Gen3 inverter

Post by Domt177 »

Has anyone found a supplier for the connectors for the Gen3 leaf inverter (or Gen1 leaf battery connector as they’re the same)

Just got my 160kw inverter and haven’t got any of the connectors for it.
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Re: Nissan Leaf Gen3 inverter

Post by Bratitude »

Domt177 wrote: Sun Jan 30, 2022 11:33 am Has anyone found a supplier for the connectors for the Gen3 leaf inverter (or Gen1 leaf battery connector as they’re the same)

Just got my 160kw inverter and haven’t got any of the connectors for it.
https://evsenhanced.com/product/nissan- ... ying-lead/
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Re: Nissan Leaf Gen3 inverter

Post by Jestroman »

Hi all,

I have my 160kw inverter ready to install, just wondering if I am better of uploading my resolver code with the inverter out of the car first ? I have the full wiring loom etc. this may also prove the inverter is functional before removing the old 80kw one?. If anyone can give me some tips? I will be using an arduino nano and canbus module. I also managed to find the code for it on here. Ill be installing this on a 2014 24kwh leaf, my SOH is about 83% with good cell balance, so hoping it will be fine with the couple of seconds here and there on 160kw, well 145kw limit currently. Also the 62kwh loom is different to the 2014 where its plugged into the car, so ill have to get creative on soldering, i was going to use those solderless joiners that you heat?
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Re: Nissan Leaf Gen3 inverter

Post by Kelju »

If you have a wiring loom available, I would suggest you do it before dismantling the stack from the car. You do realize that you also need to request higher torque from the inverter to get the higher power out, right? Something that the OEM VCU does not inherently do in an otherwise stock Leaf. But I assume you got this covered as you are also mentioning a 145kW limt.
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Re: Nissan Leaf Gen3 inverter

Post by Alibro »

Jestroman wrote: Thu Mar 10, 2022 10:40 am Hi all,

I have my 160kw inverter ready to install, just wondering if I am better of uploading my resolver code with the inverter out of the car first ? I have the full wiring loom etc. this may also prove the inverter is functional before removing the old 80kw one?. If anyone can give me some tips? I will be using an arduino nano and canbus module. I also managed to find the code for it on here. Ill be installing this on a 2014 24kwh leaf, my SOH is about 83% with good cell balance, so hoping it will be fine with the couple of seconds here and there on 160kw, well 145kw limit currently. Also the 62kwh loom is different to the 2014 where its plugged into the car, so ill have to get creative on soldering, i was going to use those solderless joiners that you heat?
I'd suggest you do several practice runs with the solderless joiners and test the joins before using them for real.
I don't believe the solder flows into the wires with them but just coats the outside. I bought a load for a similar use but decided against them. The thought of bad connections in the future doesn't appeal.
I need a bigger hammer!
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