upgrade leaf to 13.3kw charging

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g4qber
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upgrade leaf to 13.3kw charging

Post by g4qber » Tue, 03 Dec 2013, 13:18

http://www.upgrademyleaf.com/examples-o ... r-upgrade/

Not for the faint hearted

<updated title to 13.3>
10+3.3
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coulomb
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upgrade leaf to 13.3kw charging

Post by coulomb » Tue, 03 Dec 2013, 13:54

g4qber wrote: Not for the faint hearted

Absolutely. Victor is a true hacker (in the good sense of the word).

Impressive to see it all on one page.
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Johny
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upgrade leaf to 13.3kw charging

Post by Johny » Tue, 03 Dec 2013, 14:13

Very nice.

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Gabz
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upgrade leaf to 13.3kw charging

Post by Gabz » Tue, 03 Dec 2013, 15:34

i think it would be easier to put on of these http://www.evtec.ch/c5website/index.php ... nd_charge/ in the boot
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upgrade leaf to 13.3kw charging

Post by Johny » Tue, 03 Dec 2013, 15:44

Yes, while interesting that anyone would go to that much trouble (and very tidy it was), that Bruza approach would be horribly expensive (once labour was taken into account as well) and no doubt would void warranty on the Leaf (IMO).
A portable CHAdeMO charger that could somehow be made un-stealable (biggest problem IMO) may be a less expensive way of doing it.
In almost all the cases where he sited an advantage to be able to fast charge at destination, it would have been feasable to "chuck" the CHAdeMO unit in the back of the Leaf.
The stealable issue could be handled by a disconnect alarm perhaps - since it's so fast that you must be close by.

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acmotor
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upgrade leaf to 13.3kw charging

Post by acmotor » Tue, 03 Dec 2013, 17:35

You have got to be kidding right ????
Sorry guys, hacking gone wrong.
Great blog, great machining Image , great hacking (if it was required !) but.... hasn't he heard of CHAdeMO ?

It is fantastic to see the hacking coming on stream for the production EVs. However, hacking the VFD profile for power/regen mods or modifying battery capacity seem far more important than a mod that requires a 50A 240V outlet. IMHO

I quote "my leaf can recharge anywhere in 100 minutes" sounds like a politician crossed with a late night TV steak knife add.



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Gabz
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upgrade leaf to 13.3kw charging

Post by Gabz » Tue, 03 Dec 2013, 17:55

i would debate the anywhere how many places have 250V 50amp in Australia let alone in the USA.

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upgrade leaf to 13.3kw charging

Post by coulomb » Wed, 04 Dec 2013, 02:27

Gabz wrote: i would debate the anywhere how many places have 250V 50amp in Australia let alone in the USA.

True.

But it has adjustable current demand, with a neat user interface. So it can use pretty much any power source, though maybe he can't dial down the original 3.3 kW charger (I didn't check to see if that's possible or not).

But he can charge anywhere that any other Leaf can, while also taking advantage of *up to* 50 A if it happens to be available. Assuming of course that you know the limits for the source. And presumably, any J1772 source does know its limits. He seems to be one of Weber's crowd though, preferring not to use fancy 1772 connectors and EVSEs.

Edit: but perhaps I'm misunderstanding his connectors, and where he can and can't get power from. In the USA, he'd need a prodigious collection of power cord adapters, since they seem to have so many standards. Even here, you'd want a 15, 20, 25, and 32 A plug adapter, and you'd stop at one extra 3.3 kW charger. The convenient backwards compatible plugs are great for a fixed power load, but for a fixed power source and variable power load, they don't help.

Or go to three phase, but even there we have multiple standards (20 A and 32 A being common, and not backwards compatible).
Last edited by coulomb on Tue, 03 Dec 2013, 15:40, edited 1 time in total.
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5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

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upgrade leaf to 13.3kw charging

Post by jonescg » Wed, 04 Dec 2013, 02:36

I think there is nothing wrong with a seriously capable AC charger on board, provided it can be dialled down to 2 kW or so. There are thousands and thousands of 32A, 3 phase outlets in Australia, but about 3 fast DC chargers. Based on today's available charging infrastructure, I would seriously consider the AC charging route.

The more elegant solution is 240 V AC, 32A single phase charging for day to day use (2 kW to 7 kW capable; not too shabby) and >50 kW DC charging for long trips, provided they are available on your route.
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upgrade leaf to 13.3kw charging

Post by acmotor » Wed, 04 Dec 2013, 06:29

jonescg wrote: I think there is nothing wrong with a seriously capable AC charger on board, provided it can be dialled down to 2 kW or so....    


Agreed, as in most cases you will be dialled down to 2.2kW. Image

Another point that is coming to light is the efficiency of the onboard chargers. 80 something % maybe.
The onboard 13.3kW charger in this thread losses more power than my EV takes to charge at 10A ! Scary !
Hopefully DC charging from stored PV energy will be more efficient. Image
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upgrade leaf to 13.3kw charging

Post by Johny » Wed, 04 Dec 2013, 14:34

It also occured to me that, to actually use his system, you have to have access to a J1772 charge point AND a high current 240 VAC outlet at the same location - within a few meters. That's not going to be that easy to come by. So on reflection - interesting but fairly useless project.

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