edatoakrun wrote: Marktm wrote:
cwerdna wrote:Not sure what you mean by this.
...V2H is actually available (Setec Power) to be used in the U.S. today with CHAdeMO protocols (and maybe CCS/PLC?)...
While there are many examples of CHAdeMO ports being used to discharge energy from BEVs, FCVs and PHEVs, using CCS or TSLA ports to access a vehicles energy source (AFAIK) has never even been demonstrated.
Not qualified to explain why, but have been told variously both that it is a design issue, and/or that the manufacturers using those ports simply do not want to pursue the application.
Stupid behavior, IMO, whichever explanation is correct.
My understanding from researching this a bit is SAE CCS uses Homelink GreenPHY (specifically, the lower-speed control channel portion) sent over the J1772 connector's AC leads (which doesn't normally have any AC live on it, iirc, so I guess it's PLC on a wire pair that has no power?) with Ethernet, but I've not found details on what the protocol looks like. I do know Qualcomm seems to be the only ones building chips to support that. Couldn't find the individual chips for sale.
The SAE CCS Type 1 connector, used in the USA, is available (made by Phoenix Contact) but retails over $1000 ( http://www.mouser.com/search/ProductDet ... key1628122
). CHAdeMO is much further along in terms of being able to buy hardware and connectors to build alternative systems (like V2H).
I think it would be nice to build a cottage industry around 3rd party SAE CCS hardware, cheaper pump handles + cables along with easily purchased GreenPHY adapters. If anything, the option to install your own lower-power fast charger at home (e.g. 19kW) would be enticing along with the option to have a CCS "generator" for powering heavy stuff in the field. The latter being a solid use-case for future BEV work trucks/semis and the like.
Then again, over at the Focus Electric forum, someone got ambitious and installed a CHAdeMO port for his car (pre-2017, so it had no fast charge capability anyhow) by tapping into a high voltage junction box atop the motor... and using Arduino to monitor the OBD-II CAN messages for controlling the charge session. http://www.myfocuselectric.com/forum/vi ... it=chademo