mitch672
Posts: 1956
Joined: Fri Apr 23, 2010 2:10 pm
Location: Boston, MA

contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 1:50 pm

I sent Rich Rudman an email, asking about his plans for the Leaf, I am enclosing the email and his response as well, from the sound of it, we will need a west coast volunteer to assist with development, as he won't be buying a Leaf right away.

> Mr. Rudman,
>
> I have discovered your website, and the various DC chargers you have
> available, and I was wondering if you where planning on making or
> adapting one of your models for the upcoming Nissan Leaf. The Leaf is
> only comming with a 3.3KW onboard charger, that is accessed with the
> J-1772 EVSE equipment, that Nissan is trying to sell the Leaf owners
> for $2200 installed. I think a “real” DC charger, such as the PFC-50
> that can put out 12KW if you have 240V AC/50AMPs available is a much
> better value for your $3300 asking price. Of course it will need an
> interface cord/connector for the Leaf, and also probably an interface
> “box” or module to talk between the Leafs onboard BMS and the charger…
> But I think you and your company could come up with that, and it could
> be a great product for you. Nissan already has over 8,000 preorders
> worldwide for the Leaf, and it could be a very large market for you,
> it is certainly a much better value than the overpriced EVSE that
> Nissan is attempting to push out to the public, which will take over 8
> hours to charge the Leafs 24KW battery pack @ 3.3KW.
>
> I thought I would call your attention to this, although I am fairly
> certain you are probably already “on the case”
>
> I look forward to hearing about your plans, and what you might be
> coming out with for the Nissan Leaf.
>
> Thanks,
>
> Mitch
>
> Future RED SL Nissan Leaf owner
>
> Boston, MA
>
> P.S. We have a Nissan Leaf forum, some of these issues are being
> discussed on:
> search.php?search_id=active_topics
>

Here is his reply

Mitchell:
Yes I am looking at using out chargers for the leaf. At the moment I was just working on a 40Kw 3 phase fleet level charger, but the PFC50/75 would also be a good fit.

What I need to know is what it takes to use the DC interface feature on the Leaf. I have lots of questions, but I can see a 1000s customer base from here also.

The question is how do I do it, and can I keep it cheap, and my profit high.

Any information on the DC interface would be nice to see.

Please tell the forum that we intend to make as much gear as we can for the Leaf, Bigger chargers bigger battery packs, CAN scanners for viewing what ever is needed in the Leaf.
I was thinking it would be a good idea for Manzanita Micro to get a Leaf, but I over loaded on the Hybrids that I am still paying off.

Let me know what you folks want, I will make it if I can.

Rich Rudman
Manzanita Micro
2012 Advanced Plug in Prius (sold)
I Support OpenEVSE: http://code.google.com/p/open-evse/
My Fuelly page: http://www.fuelly.com/driver/mitch672/prius-plugin
Tesla Model S 85KW Dolphin Grey VIN: 03245, delivered 1/17/2013

KarenRei
Posts: 130
Joined: Fri Apr 23, 2010 2:56 pm

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 2:02 pm

Good to see that he's on it! :) Does he know that it's reportedly a TEPCO connector?

mitch672
Posts: 1956
Joined: Fri Apr 23, 2010 2:10 pm
Location: Boston, MA

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 2:06 pm

I'll tell him Karen :) He may not be aware of it yet, I think he really wants the technical specs on the Leaf and the DC port, but as of now, I don't think anyone can get that without an NDA, but he could probably contact Nissan and get that ahead of time, depending on how they feel about 3rd party add ons.
2012 Advanced Plug in Prius (sold)
I Support OpenEVSE: http://code.google.com/p/open-evse/
My Fuelly page: http://www.fuelly.com/driver/mitch672/prius-plugin
Tesla Model S 85KW Dolphin Grey VIN: 03245, delivered 1/17/2013

KarenRei
Posts: 130
Joined: Fri Apr 23, 2010 2:56 pm

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 3:06 pm

Image

Here's the same connector on the MiEV:

Image

I believe the connector in the TEPCO standard is called "JARI"

User avatar
EVDRIVER
Moderator
Posts: 6617
Joined: Sat Apr 24, 2010 7:51 am

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 3:23 pm

There are the following:

Two com pins
Two EV relay controls
One ground reference pin
Once proximity Pin for mating
Once "ready to charge pin

Standard EV stuff, if a CAN bus is used to talk to the large charger then doing a PFC will be more challenging as only chargers like the Brusa have a CAN bus. This is what Gary was mentioning earlier. The car BMS may need to talk over the CAN to control the charger, something the PFC does not do last I knew. Depending on the parameters though, something could be made.

http://grouper.ieee.org/groups/earthobs ... Kissel.pdf

mitch672
Posts: 1956
Joined: Fri Apr 23, 2010 2:10 pm
Location: Boston, MA

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 3:37 pm

Yes, I found a little more, the cars ECU does tell the charger what the current should be set to, so it will need to support the CAN bus most likely.

TEPCO Level III Specs

•Switching type, constant current power supply
•Input: 3-phase 200V (200~430V)
•Output power: 50 kW (10~100kW)
•Max DC output Voltage: 500V
•Output current: 125A (20~200A)
•JARI Level 3 DC Connector
•EV ECU determines optimal current; charger supplies current based on order from EV ECU
2012 Advanced Plug in Prius (sold)
I Support OpenEVSE: http://code.google.com/p/open-evse/
My Fuelly page: http://www.fuelly.com/driver/mitch672/prius-plugin
Tesla Model S 85KW Dolphin Grey VIN: 03245, delivered 1/17/2013

User avatar
evnow
Moderator
Posts: 11474
Joined: Thu Apr 22, 2010 11:41 am
Delivery Date: 25 Feb 2011
Leaf Number: 303
Location: Seattle, WA

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 4:30 pm

They would need to modify pfc-50 to add the communication features.

Ofcource, then the question is, would it be as per code & pass the UL. Those things add to the cost ...
1st Leaf : 2/28/2011 to 5/6/2013
2nd Leaf : 5/4/2013 to 3/21/2017
Volt : 3/25/2017 to 5/25/2018
Model 3 : 5/10/2018 to ?

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EVDRIVER
Moderator
Posts: 6617
Joined: Sat Apr 24, 2010 7:51 am

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 4:43 pm

mitch672 wrote:Yes, I found a little more, the cars ECU does tell the charger what the current should be set to, so it will need to support the CAN bus most likely.

TEPCO Level III Specs

•Switching type, constant current power supply
•Input: 3-phase 200V (200~430V)
•Output power: 50 kW (10~100kW)
•Max DC output Voltage: 500V
•Output current: 125A (20~200A)
•JARI Level 3 DC Connector
•EV ECU determines optimal current; charger supplies current based on order from EV ECU



Where did you find specs on the Leaf ECU? The specs on the connector are generic. If it does need CAN it could be made to control the PFC current like the Rudman Regs, etc.

mitch672
Posts: 1956
Joined: Fri Apr 23, 2010 2:10 pm
Location: Boston, MA

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 5:03 pm

2012 Advanced Plug in Prius (sold)
I Support OpenEVSE: http://code.google.com/p/open-evse/
My Fuelly page: http://www.fuelly.com/driver/mitch672/prius-plugin
Tesla Model S 85KW Dolphin Grey VIN: 03245, delivered 1/17/2013

User avatar
garygid
Gold Member
Posts: 12460
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: contact with Rich Rudman from manzanitamicro

Tue May 04, 2010 6:10 pm

This sounds much more workable ... a controlled-current power supply, with some maximum voltage and current.
See SOC/GID-Meter and CAN-Do Info
2010 Prius, now for sale
2011 LEAF, sold in 2015
2018 Tesla Model 3
2014 Tesla S, Model 3 in 2019
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle

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