Hi Peri,
I feel extremely lucky - I mean I built my own electric 914, and work in
a company that provides free charging, and now I'm getting to work on
wireless EV charging. :)
As for the timeframe of the standard, I really don't know when it would
become "reality". I suspect that by the end of next year it should be
solid, perhaps even published.
What the standards groups are planning for is power ranges up to 75KW or
even 100KW. There are several companies that are content with 3.3KW, but
my personal opinion is that this is entirely too short-sighted. We
shouldn't have to change the interconnects if we are going to shove more
power through.
Cheers, Peter
On 9/10/13 8:48 AM, Peri Hartman wrote:
Peter, you are lucky to be in such a critical place of influence! How far
in the future are standards being designed for? My quip has been that what
we have today will be inadequate once batteries can hold enough energy for
200+ miles per charge. A whole new set of charging interconnects may be
needed, perhaps like what Tesla has. I'd like to hear your thoughts on
this.
Peri Hartman
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Peter C. Thompson
Sent: 10 September, 2013 8:07 AM
To: [email protected]
Subject: Re: [EVDL] EVLN: Nissan Expanding Global EV Lineup To Five Models
On 9/10/13 1:15 AM, David Rees wrote:
On Thu, Sep 5, 2013 at 9:03 PM, Peter C. Thompson <[email protected]>
wrote:
Nope, try again. :) We're getting much better than that. Better than
my
homebuilt plug-in car can do.
http://qualcommhalo.com
I see you are an engineer working there! Cool! The only docs on the
site say "comparable" charging times - which doesn't say much. If
efficiency can get over 95% it'd almost be good enough for me to
consider using for bulk charging - otherwise I'd prefer a
hard-connection where efficiency is typically 98-99%. I hate turning
energy into heat unless I need it!
The real proposition is in the city - where you dare not leave anything
that
the punks down the street can steal.
Not just theft of cables, but vandalism is a real issue as well.
My biggest issue is that we already have a quite a few different
charging standards (J1772 for L1/L2, CHAdeMO for DCQC, J1772-Combo,
Tesla has two different plugs (Roadster, Model S). Not to mention the
various EV plugs that came before J1772 (which have thankfully mostly
died off) and European standards (Mennekes).
And now wireless charging standards - how many different manufactures
of wireless charging are going to come out? Qualcomm has theirs - I
know Nissan is also actively working on one and so is Toyota...
Fragmentation is a big hindrance to plug-in vehicle adoption.
-Dave
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Fragmentation is something we are trying to address in the standards
realm (that's what my job is - dealing with SAE and IEC) - we are
working on the specs to basically require interoperability. So even if
there are different methods of power transmission, the hardware will
require a minimum level of efficiency.
Power transmission efficiency is something that we are working on
internally, so once I have something I'm allowed to publish, I'll let
you know.
Cheers, Peter
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