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-participant / > 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-cuc 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/a90a 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)
