FairwoodRed
Posts: 459
Joined: Wed May 18, 2011 10:25 am
Location: Fairwood, WA

Re: A peek at the Leaf's Charger

Fri Feb 15, 2013 9:20 am

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.

metricmind
Posts: 46
Joined: Wed Jul 03, 2013 8:42 am
Delivery Date: 10 Sep 2012

Re: A peek at the Leaf's Charger

Wed Jul 03, 2013 10:27 am

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

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

FairwoodRed
Posts: 459
Joined: Wed May 18, 2011 10:25 am
Location: Fairwood, WA

Re: A peek at the Leaf's Charger

Fri Jul 05, 2013 10:14 am

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

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.

RkEvHopeful
Gold Member
Posts: 18
Joined: Tue Apr 12, 2011 7:40 am
Delivery Date: 07 Jul 2011
Leaf Number: 6154

Re: A peek at the Leaf's Charger

Sun Sep 23, 2018 7:47 pm

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

User avatar
Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

Re: A peek at the Leaf's Charger

Sun Sep 23, 2018 10:28 pm

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.
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/ - - - - Like us on Facebook: EVSE Upgrade

NiallDarwin
Posts: 33
Joined: Thu Jul 09, 2015 1:58 am
Delivery Date: 12 Dec 2015
Leaf Number: 004321
Location: New Zealand

Re: A peek at the Leaf's Charger

Sat Sep 29, 2018 3:45 pm

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 :)

RkEvHopeful
Gold Member
Posts: 18
Joined: Tue Apr 12, 2011 7:40 am
Delivery Date: 07 Jul 2011
Leaf Number: 6154

Re: A peek at the Leaf's Charger

Sun Sep 30, 2018 9:55 am

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/products/mpumcu/001/rej09b0230_sh7147hm.pdf?key=e76f358255c2ab18777f37b1e5a5cdeb

From the Renesas website: https://www.renesas.com/us/en/products/microcontrollers-microprocessors/superh/sh7147/sh7147/device/R5F71424AK64FPV.html#documents
Last edited by RkEvHopeful on Fri Oct 05, 2018 9:08 pm, edited 1 time in total.

NiallDarwin
Posts: 33
Joined: Thu Jul 09, 2015 1:58 am
Delivery Date: 12 Dec 2015
Leaf Number: 004321
Location: New Zealand

Re: A peek at the Leaf's Charger

Thu Oct 04, 2018 3:23 pm

Good sleuthing, keep it up!

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