Tesla (HPWC) to J1772 prototype demo already exists: https://youtu.be/VFEJyqGErag
I love owner enthusiast hacker types ;-) Rob On Apr 20, 2016 9:30 AM, "John Lindsay via EV" <[email protected]> wrote: > 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 <[email protected]> > 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:[email protected]] > > 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 > > <[email protected]> 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:[email protected]] 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 <[email protected]> > >> 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) > > -------------- next part -------------- An HTML attachment was scrubbed... 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