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Re: A peek at the Leaf's Charger

Posted: Fri Feb 15, 2013 9:20 am
by FairwoodRed
jclemens wrote:I know a guy who got some Brusa chargers from an bankruptcy auction. he is selling them below retail at about 2k each.
http://blog.evtv.me/store/proddetail.php?prod=brusanlg
Thanks for posting that. I'm very interested and will be reading up to see if I can make one of these work. If I buy, I'll probably buy soon, but install is a long way off.

I know EVDRIVER said it's old news, but I hadn't seen it.

Re: A peek at the Leaf's Charger

Posted: Wed Jul 03, 2013 10:27 am
by metricmind
Actually I have done this, and a friend of mine (in Europe) has as well. Take a peek: http://www.metricmind.com/leaf/main.htm" onclick="window.open(this.href);return false;

I'd love to exchange notes. You're right, to do it OEM way, while straight forward, is not easy. But important thing is - it's been
done, proven to work, documented and known exactly what to do and how. Someone has to figure how to deliver kits (and/or
upgrading service if wanted) to people.

Victor

Re: A peek at the Leaf's Charger

Posted: Fri Jul 05, 2013 10:14 am
by FairwoodRed
metricmind wrote:Actually I have done this, and a friend of mine (in Europe) has as well. Take a peek: http://www.metricmind.com/leaf/main.htm" onclick="window.open(this.href);return false;

I'd love to exchange notes. You're right, to do it OEM way, while straight forward, is not easy. But important thing is - it's been
done, proven to work, documented and known exactly what to do and how. Someone has to figure how to deliver kits (and/or
upgrading service if wanted) to people.

Victor
Thanks for the link to what you did. There are some awesome photos there. I especially liked the one that showed the braid around the wires used for leak detection.

Re: A peek at the Leaf's Charger

Posted: Sun Sep 23, 2018 7:47 pm
by RkEvHopeful
Ingineer wrote:We are looking at offering the 6.7kW upgrade as a kit. Installation is simple, and anyone competent with mechanical assembly can install it with a few hand tools in under an hour. It does not require running wires in difficult places, everything is right there under the hood, nothing under the car or in the back.
...
My mission is to support Electric Mobility any way I can. I'll keep doing so as long as I'm able, and as time permits I'll keep on developing new things for our cars.

-Phil
Bumping an old thread. Did you release your plans for the 6.7kW upgrade kit to open source after you sold your Leaf?

I would like to develop an open source under-hood replacement for the 2011 Leaf onboard charger using your 6.7kW kit plans as a starting point. The goal being to avoid a Nissan visit when the 3.3kW charger dies, again.

Thanks,
Rex

Re: A peek at the Leaf's Charger

Posted: Sun Sep 23, 2018 10:28 pm
by Ingineer
No, I didn't release an open source version, and it depends on the Nissan charger for logic, just by adding a 3.4kW boost.

Re: A peek at the Leaf's Charger

Posted: Sat Sep 29, 2018 3:45 pm
by NiallDarwin
Ingineer wrote:I haven't done a full teardown, but here's the guts:

Image
(Click picture for high-res shot)


-Phil
Has anyone done a proper teardown and writeup? I've got a dead one of these that I'd like to understand and fix. I've also got a project to make a 14S (~50V) ATV that needs a charger. Maybe it would be possible to make the dead charger into something suitable.

Cheers :)

Re: A peek at the Leaf's Charger

Posted: Sun Sep 30, 2018 9:55 am
by RkEvHopeful
Image
(Click picture for high-res shot)


-Phil
NiallDarwin wrote: Has anyone done a proper teardown and writeup? I've got a dead one of these that I'd like to understand and fix. I've also got a project to make a 14S (~50V) ATV that needs a charger. Maybe it would be possible to make the dead charger into something suitable.

Cheers :)
I have a non-working charger as well and did some tracing of lines. The EV can bus and QC can bus run from the top connector to the lower right two chips ZJY5101, then down to two can bus transceiver chips TJA1050, then over to the 100-pin 14x14mm LQFP chip. The EV can bus goes to pins 41,42. The QC can bus goes to pins 47,49.

As you look at the picture, on 100-pin chip, pin 1 is the right side lower pin and the can bus pins are on the top side row.

Markings on the chip:
R5F71424FPV
SH2 A 1043
BK08484
I found the SH7147 Group Hardware Manual, it is a Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family SH7142, R5F7142:
https://www.renesas.com/us/en/doc/produ ... b1e5a5cdeb

From the Renesas website: https://www.renesas.com/us/en/products/ ... #documents

Re: A peek at the Leaf's Charger

Posted: Thu Oct 04, 2018 3:23 pm
by NiallDarwin
Good sleuthing, keep it up!

Re: A peek at the Leaf's Charger

Posted: Thu Feb 07, 2019 1:47 am
by cwerdna
Bumping an ancient thread again.

https://www.youtube.com/watch?v=5R4dGg8nIUs from http://evsenhanced.com/services/on-boar ... e-updates/ has a video of a guy removing the OBC from an '11 Leaf to fix a blown diode.

The guy's under the car at ~4:20. He's pulling the coolant lines at ~5:25 then removing the OBC at 5:40. At ~6:40 is where he talks about the bad diode and circles it on the board.

Re: A peek at the Leaf's Charger

Posted: Wed Oct 30, 2019 7:31 pm
by nlspace
@Niall and RK,

Have you made any progress--are you still trying to make repairs?