91040
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 11:40 am

What safety protocols does he use with this and why couldn't they be designed into a DC charger?
1st Capacity Bar loss 30k mi 16.25mo
2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah
4th- 86.5k mi 43mo 42.61Ah
5th- 101k mi 50.5mo 38.38Ah, end 36.13Ah
New Battery 9/28/15 104k mi 66.14Ah
1st- 160.5k mi 34mo 54.02Ah

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TonyWilliams
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 11:43 am

91040 wrote:What safety protocols does he use with this and why couldn't they be designed into a DC charger?
I honestly don't know. Phil would be to the guy to ask. I didn't spend more than just a few minutes looking this over.

When I saw the equivalent of an aircraft APU on the trailer, all I could see was numerous failures :mrgreen:

91040
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 12:32 pm

Thanks for your insights. Maybe Phil will post.
1st Capacity Bar loss 30k mi 16.25mo
2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah
4th- 86.5k mi 43mo 42.61Ah
5th- 101k mi 50.5mo 38.38Ah, end 36.13Ah
New Battery 9/28/15 104k mi 66.14Ah
1st- 160.5k mi 34mo 54.02Ah

DarkStar
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Leaf Number: 568
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 2:03 pm

TonyWilliams wrote:Yes, it is a ChaDeMo connector. The charger did not come with ChaDeMo protocols.

Check out these chargers:
http://www.manzanitamicro.com" onclick="window.open(this.href);return false;
Ahh yes, I've spoke with Rich a few times over at Manzanita Micro.
TonyWilliams wrote:He is using a connection between the front of the battery pack and the inverter. He intends to bypass the protocols, but there are limits to max power to prevent battery protections from kicking in.
And that answers my next immediate question, now I really can't wait to hear more from Phil! :D
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TEG
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 4:09 pm

I think Phil mentioned that the LEAF main power connection (pack to inverter) seems to allow up to about 27kW of extra power to show up from "somewhere else" (e.g., his trailer generator) without causing an error condition. I would bet it confuses the DTE/GOM even more if the battery seems to be recharging itself as you drive. Phil is working on interfacing with the car electronics (CAN bus) to make it more cooperative about what is happening to the car, not just sneaking some extra power in there.

I would say it is a preliminary work in progress / proof-of-concept right now and still needs a bit more work before it is properly integrated.

He also mentioned an estimated highway MPG value, which I don't recall exactly... I think it was mid 30s. You lose efficiency going engine->generator->inverter->motor->wheels instead of just engine->transmission->wheels like a Prius (or even Volt) does.
This combo vehicle probably isn't the best thing for long distance trips, but it does provide a way for someone to occasionally take the longer trip, and then use the LEAF as intended (EV only) once in another city where you drop off the trailer.

It could also be super handy to go rescue someone who ran low of power, and could benefit from a visit from a portable quick charger.

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evnow
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 4:27 pm

TEG wrote:He also mentioned an estimated highway MPG value, which I don't recall exactly... I think it was mid 30s. You lose efficiency going engine->generator->inverter->motor->wheels instead of just engine->transmission->wheels like a Prius (or even Volt) does.
If we think EV efficiency from wall to wheels is 80% - serial range extender can be more efficient if that 20% loss is more than made up by running the engine at a constant load. I can imagine someone in the future creating an engine specifically meant for serial range extension that makes it efficient enough to challenge Prius efficiency.
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 4:50 pm

So said Fisker, then they ended up with 20MPG highway on gasoline for the Karma... :(

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evnow
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Re: Towable Turbine Powered CHAdeMO Charger

Mon Dec 05, 2011 5:14 pm

TEG wrote:So said Fisker, then they ended up with 20MPG highway on gasoline for the Karma... :(
Well, Karma is too heavy & the ICE is not purpose built.
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turbo2ltr
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Re: Towable Turbine Powered CHAdeMO Charger

Wed Dec 07, 2011 10:03 am

So who's trailer is this?

Capstone turbine?
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mitch672
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Re: Towable Turbine Powered CHAdeMO Charger

Wed Dec 07, 2011 10:16 am

Phil posted details below, no need to "guess" any longer.

All I can say is, wow Phil, I'd like one in the Boston area, when you prove the concept.
I think this could be a game changer for the Leaf, and certainly make up for the lack of DC Fast chargers in most of the country, a few dozen of these scattered in major US cities would make a huge difference until the "actual" DC fast chargers could be deployed, and as we can see, thats not going all that quickly even on the West coast, never mind the East coast and the rest of the country.

Thanks for your pioneering work and vision, perhaps you can partner up with someone when you are ready to mfr and produce these, someone with deep pockets of course, this is way beyond what a normal "hobbyist" or "enthusiast" would come up with.
Last edited by mitch672 on Wed Dec 07, 2011 10:56 am, edited 3 times in total.
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