Leaf Gen 1 board

Nissan Leaf/e-NV200 drive stack topics
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johu
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Re: Leaf Gen 1 board

Post by johu »

Very nice addition, thanks! UDC is it PWM or an analog signal? Which pull-up resistance?
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Re: Leaf Gen 1 board

Post by InductiveJon »

Analog signal, I used a 10K pullup and that seems to be working. Got the offset and gain dialed in the software so it's pretty close to the measured values at 0V and 315V which is what my pack is sitting at right now. For reference, I measured 0.4V at 0 and just over 3V at full potential with the OEM controller on this pin.

I still need to hook up my variable power supply so I can verify it at a few different voltage levels.

I'm better at software than hardware, so there may be a better approach but it's working to close the precharge / main contactors as needed.

For the desat, any suggestions on how to safely trigger an error condition so I can confirm the behavior?
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Re: Leaf Gen 1 board

Post by johu »

Very nice.

For testing desat on the Gen2 I simply shorted out the opto coupler diode on the HV side. They are normally on and switch off in error condition
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Re: Leaf Gen 1 board

Post by Romale »

johu wrote: Mon Aug 29, 2022 2:26 pm Very nice.

For testing desat on the Gen2 I simply shorted out the opto coupler diode on the HV side. They are normally on and switch off in error condition

super!
I just lacked a way to find a desat for a module from nissan note e-power
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Re: Leaf Gen 1 board

Post by CarlSVB »

Hi I am a Newbie to this forum, however, I have been involved with a few EV builds over here in Perth Australia. I recently bought a Leaf gen 1 motor, inverter and what I think is the leaf VCU? is my best option to have this gen 1 board made from the available files, then run a VCU control board as read in other forum posts. Or has someone used the original VCU and sent required can signals to it? is it possible to buy a pre-made board and components for running a gen 1 leaf motor?
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Re: Leaf Gen 1 board

Post by Romale »

InductiveJon wrote: Wed Aug 24, 2022 3:06 pm Spent some time working with this board recently and wanted to add a few things:

CN3-12 is indeed the UDC signal. It needs to be pulled up to 5V.

could you show in the photo or schematically a picture which pin from the native driver board is the UDC ?
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Re: Leaf Gen 1 board

Post by Romale »

CarlSVB wrote: Tue May 16, 2023 11:47 am Hi I am a Newbie to this forum, however, I have been involved with a few EV builds over here in Perth Australia. I recently bought a Leaf gen 1 motor, inverter and what I think is the leaf VCU? is my best option to have this gen 1 board made from the available files, then run a VCU control board as read in other forum posts. Or has someone used the original VCU and sent required can signals to it? is it possible to buy a pre-made board and components for running a gen 1 leaf motor?
hi. there are no ready-made TRANSITION boards, only if someone did it for himself and has an extra one. the v3 brain itself will be perfectly able to control this and will give you almost twice as much power as the factory control! or you can look in the direction of the zombiverter and control the factory brain by kan, but the power will also only be factory
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Re: Leaf Gen 1 board

Post by johu »

CarlSVB wrote: Tue May 16, 2023 11:47 am Hi I am a Newbie to this forum, however, I have been involved with a few EV builds over here in Perth Australia. I recently bought a Leaf gen 1 motor, inverter and what I think is the leaf VCU? is my best option to have this gen 1 board made from the available files, then run a VCU control board as read in other forum posts. Or has someone used the original VCU and sent required can signals to it? is it possible to buy a pre-made board and components for running a gen 1 leaf motor?
Also check out ZombieVerter which runs any Leaf board via CAN
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