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 > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) > > 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 _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
