Ah, serve me right for reading posts backwards! This is an elegant solution :-)
John Lindsay > On 20 Apr 2016, at 4:35 PM, Cor van de Water via EV <ev@lists.evdl.org> wrote: > > Ah, I was mistaking the HPWC for the Supercharger, > but in fact it is the electrically J1772 compatible, > only mechanically different outlet (sleeker and more flexible, > due to the use of multiple thinner wires instead of a single > large gauge wire for each current conductor). > For that sleek Tesla variant of the J1772 it should be simple > (read: 3D printing effort) to manufacture a converter to standard J1772. > > The Redneck (no insult intended) way of dealing with this problem > would probably be to cut off the Tesla plug with 1 foot of cable, > attach a J1772 plug and recepticle in line and voila: both Tesla and > all other cars can charge at the HPWC. > > Cor van de Water > Chief Scientist > Proxim Wireless > > office +1 408 383 7626 Skype: cor_van_de_water > XoIP +31 87 784 1130 private: cvandewater.info > > http://www.proxim.com > > This email message (including any attachments) contains confidential and > proprietary information of Proxim Wireless Corporation. If you received > this message in error, please delete it and notify the sender. Any > unauthorized use, disclosure, distribution, or copying of any part of > this message is prohibited. > > > -----Original Message----- > From: Mike Nickerson [mailto:m...@nickersonranch.com] > Sent: Tuesday, April 19, 2016 11:38 PM > To: Cor van de Water; Electric Vehicle Discussion List; Cor van de Water > via EV > Subject: Re: [SPAM?] Re: [EVDL] Tesla's (cuckoo) EVSE grants ... > > Hi Cor, > > I'm certain that what you describe or something similar is being used by > the Tesla owned SuperCharger stations. The SuperCharger access was > included in the higher end models, but a purchased option on the base > model. Because of that, I'm sure they have authentication on the > SuperCharger stations. > > However, the HPWC are different. They are privately owned and often > purchased by owners for installation in their garage. Even if furnished > or funded partially by Tesla, they are still controlled by the local > business. The HPWC don't have any network connection of way to > authenticate or charge for access. > > The way that Tesla did their connector, it is more convenient to use the > proprietary connector. Using the J1772 adapter is another part that has > to be installed and removed, and another step. The adapter must be > removed to close the charging access door. > > There are news stories about a prototype HPWC to J1772 adapter being > tested. Nothing recently that I saw, though. See: > http://longtailpipe.com/2015/11/09/new-ev-charging-adapter-lets-j1772-ca > r-owners-use-tesla-hpwc-charging-stations-cool-or-theft/ > > Mike > > On April 19, 2016 10:05:04 PM MDT, Cor van de Water via EV > <ev@lists.evdl.org> wrote: >> I have the suspicion (never even charged at a Tesla station and >> certainly never been exposed to the protocol) that if the engineers at >> Tesla are worth their salt, that even though the chargers are not >> networked, they probably will ask the car to identify itself before >> starting a charging session, >> because without such a handshake, what keeps the world from charging >> for >> free at the Tesla chargers? >> It is relatively easy to create an asymmetric encrypted authentication, >> whereby you can easily check with the public key that it is a valid >> authentication, without being able to *generate* a valid >> authentication, >> since that requires the private key. We do this to avoid hackers from >> buying the lowest cost version of our product and upgrading it to a >> higher featured model, since the license key is encrypted in such a >> way. >> Tesla can generate keys for their vehicles that are used for the >> communication with the chargers (and other identification purposes). >> >> So, while it may be a great learning experience to try and >> reverse-engineer the Tesla charging protocol in similar way that the >> Leaf was used to record Chademo charging sessions, don't be surprised >> if >> there are encrypted messages that will prevent you from even playing >> back a recorded charging session to a charging station, to lure it into >> giving you a charge. >> >> Hope this gives some insight, >> >> Cor van de Water >> Chief Scientist >> Proxim Wireless >> >> office +1 408 383 7626 Skype: cor_van_de_water >> XoIP +31 87 784 1130 private: cvandewater.info >> >> http://www.proxim.com >> >> This email message (including any attachments) contains confidential >> and >> proprietary information of Proxim Wireless Corporation. If you >> received >> this message in error, please delete it and notify the sender. Any >> unauthorized use, disclosure, distribution, or copying of any part of >> this message is prohibited. >> >> >> -----Original Message----- >> From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Thomas Brannan >> via EV >> Sent: Tuesday, April 19, 2016 8:39 PM >> To: brucedp5; Electric Vehicle Discussion List >> Subject: Re: [EVDL] Tesla's (cuckoo) EVSE grants ... >> >> Sounds like a great opportunity for an entrepreneur - that HPWC coupler >> to >> j1772 adaptor. Kickstarter or indiegogo? >> Tom >> >> On Tue, Apr 19, 2016 at 2:13 PM, brucedp5 via EV <ev@lists.evdl.org> >> wrote: >> >>> >>> >>> With all the coming election noise, and the possiblity of no more >> EVSE >>> grants ringing in my ears, on a search I could not find a renewal of >> the >>> U.S. Fed grant to cover some of the cost of installing public EVSE as >>> before. >>> >>> But I found a self-promo news item touting a business' new EVSE. I >> noticed >>> their EVSE were two (proprietary) Tesla HPWC EVSE, that no other >> plugin but >>> a Tesla EV can use. >>> >>> I sent a message off to the business' contact (a NJ mall), letting >> them >>> know >>> that non-Tesla drivers are going to feel rebuffed, thus they could >> lose >>> plugin driver business. >>> >>> They kindly replied letting me know their HPWC EVSE was part of a >> Tesla >>> Destination Charging grant (Tesla paid for it). See >> http://www.teslarati.com/becoming-tesla-destination-charging-participan > t >> / >>> Becoming a Tesla Destination Charging Participant >>> Feb 25, 2016 >>> [link >>> https://teslafactory.wufoo.com/forms/q7b8imo1g0og2v/ >>> contact Tesla's Destination Charging program >>> ] >>> >>> BTW there is no HPWC to j1772 adaptors drivers can buy, so when HPWC >> are >>> installed, j1772 L2 drivers are shut-out. While I am not against >> Tesla, >>> helping to install 'Tesla-only' (proprietary) EVSE is the same >> problem >>> drivers had back in the late 1990's-on. >>> >>> GM would almost give away their inductive (proprietary, wireless) >> lpi,spi >>> EVSE, which would displace either one or both of the public EVSE >> being >>> installed at a host site, paid for with CA DMV fees (many EVSE sites >> had >>> two >>> spi and no conductive avcon EVSE). This cuckoo approach to public >> EVSE >>> domination ... >>> >>> [link >>> https://en.wikipedia.org/wiki/Cuckoo >>> Cuckoo ... Many species are brood parasites, laying their eggs in the >> nests >>> of other species, ... raise their ... young >>> https://en.wikipedia.org/wiki/Brood_parasite >>> ] >>> >>> is bad for the EV-cause, unless a HPWC coupler to j1772 adaptor is >> made >>> available for plugin drivers to buy. Since HPWC EVSE are >> non-networked, >>> buying an adaptor would be paid off with the free L2 charging. >>> >>> >>> >>> >>> For EVLN EV-newswire posts use: >>> http://evdl.org/evln/ >>> >>> >>> {brucedp.150m.com} >>> >>> -- >>> View this message in context: >> http://electric-vehicle-discussion-list.413529.n4.nabble.com/Tesla-s-cu > c >> koo-EVSE-grants-tp4681606.html >>> Sent from the Electric Vehicle Discussion List mailing list archive >> at >>> Nabble.com. >>> _______________________________________________ >>> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >>> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >>> Read EVAngel's EV News at http://evdl.org/evln/ >>> Please discuss EV drag racing at NEDRA ( >>> http://groups.yahoo.com/group/NEDRA) >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160419/a90 > a >> 23fc/attachment.htm> >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> Read EVAngel's EV News at http://evdl.org/evln/ >> Please discuss EV drag racing at 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 >> Read EVAngel's EV News at http://evdl.org/evln/ >> Please discuss EV drag racing at 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 > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at 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 Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
