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Boomer23
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Re: Ford Focus EV

Tue Jul 26, 2011 1:40 pm

Under-hood picture of the Focus EV is on Facebook today.

http://www.facebook.com/photo.php?fbid= ... =1&theater
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TonyWilliams
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Re: Ford Focus EV

Wed Jul 27, 2011 9:57 am

Any mention of a quick charge DC input?

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evnow
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Re: Ford Focus EV

Wed Jul 27, 2011 10:10 am

TonyWilliams wrote:Any mention of a quick charge DC input?
No - Ford has said Focus won't have a QC port.
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palmermd
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Re: Ford Focus EV

Wed Jul 27, 2011 10:26 am

evnow wrote:
TonyWilliams wrote:Any mention of a quick charge DC input?
No - Ford has said Focus won't have a QC port.
Actually that is "Yes, Ford has said Focus won't have a QC port". It was mentioned in the negative.
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evnow
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Re: Ford Focus EV

Wed Jul 27, 2011 10:34 am

palmermd wrote:Actually that is "Yes, Ford has said Focus won't have a QC port". It was mentioned in the negative.
That sounds jarring - may be the difference between the natural language and the artificial SAE.
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palmermd
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Re: Ford Focus EV

Wed Jul 27, 2011 10:45 am

evnow wrote:
palmermd wrote:Actually that is "Yes, Ford has said Focus won't have a QC port". It was mentioned in the negative.
That sounds jarring - may be the difference between the natural language and the artificial SAE.
sorry about that. just joking around. i guess i'm in a weird mood today. something about lack of sleep.
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TimeHorse
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Re: Ford Focus EV

Wed Jul 27, 2011 11:23 am

Nope, no TEPCO port of CHADeMo protocol on the Focus Electric since they're agnostic on quick-charge, could go with Type 2 Mode 4 or whatever it was the Europeans are pushing (edit: VDE-AR-E 2623-2-2). Some weird and harder to remember ISO standard.

Anyway, no TEPCO on Focus, no 6.6kW charger on LEAF. No converting CHADeMo to J1772 A/C because that's a waste of A/C to D/C back to A/C.

But what I wanna know is how hard it would be to build a device that was able to speak J1772 up to 240VAC 80A (a little less than 1/3 the power of a true CHADeMo connection) on one end (female) and convert it to CHADeMo with a TEPCO plug on the other. And if one were to use such a device, as it's going nowhere near the current and voltage levels of the standard CHADeMo, would it therefore not degrade the battery greatly to use it daily? I tell you, I'd pay real money for that if I could get the guarantee of no serious degradation of battery life. :S
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davewill
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Re: Ford Focus EV

Wed Jul 27, 2011 12:12 pm

TimeHorse wrote:But what I wanna know is how hard it would be to build a device that was able to speak J1772 up to 240VAC 80A (a little less than 1/3 the power of a true CHADeMo connection) on one end (female) and convert it to CHADeMo with a TEPCO plug on the other...
You can already find devices with a J1772 inlet and a 240v NEMA outlet (50a, I think). The hard part is getting/making a CHAdeMO charger that can be connected to standard 240v and doesn't cost an arm or leg. Plus the implementation detail of being sure that it doesn't draw more than the J1772 is offering. It wouldn't be cool to blow the breaker on some innocent public Blink or ChargePoint.
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TimeHorse
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Re: Ford Focus EV

Wed Jul 27, 2011 6:14 pm

davewill wrote:
TimeHorse wrote:But what I wanna know is how hard it would be to build a device that was able to speak J1772 up to 240VAC 80A (a little less than 1/3 the power of a true CHADeMo connection) on one end (female) and convert it to CHADeMo with a TEPCO plug on the other...
You can already find devices with a J1772 inlet and a 240v NEMA outlet (50a, I think). The hard part is getting/making a CHAdeMO charger that can be connected to standard 240v and doesn't cost an arm or leg. Plus the implementation detail of being sure that it doesn't draw more than the J1772 is offering. It wouldn't be cool to blow the breaker on some innocent public Blink or ChargePoint.
Well, my main reason is I have a Clipper Creek CS-100 with a 125A breaker in my garage so I'm well-suited to draw up to about 19.6W out of my wall. It'd be awesome for me to plug in and charge in about 90 minutes! Now, that's 1/3 the speed of true CHADeMO and it's unknown if a) CHADeMo can run at that wattage (by either throttling Amps or Volts) and b) if that amount of power will reduce battery life. Plus, I don't think you can time the CHADeMo, but it's be funny if I woke up each morning, walked down to plug my near-empty LEAF in, went back up, took a shower, breakfasted and then when I got to my car it was fully charged. :)

CHADeMO is a public standard, right? Or is it proprietary and that's why it's unlikely to see the light of day outside of industry?
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evnow
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Re: Ford Focus EV

Wed Jul 27, 2011 7:09 pm

TimeHorse wrote:Well, my main reason is I have a Clipper Creek CS-100 with a 125A breaker in my garage so I'm well-suited to draw up to about 19.6W out of my wall.
Yes - but you don't have a DC charger ...

I beleive CHADEMO is a direct DC connection to the battery. So voltage is important - and the charger needs to be able to handle all the communication & control for charging.
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