Thanks for the info.
It would be nice to get a good description of just what the
Japanese "home power" accessory does.
We are concentrating solely on charging until we get that
well done. The details of the charging CAN communication
are becoming more clear as we are able to run little experiments.
Gradually our guesses are becoming quite-likely descriptions,
and even some good conjectures of functionality.
We are experimenting with a hacked power supply that we
would not recommend to others, at least for safety reasons.
However, in carefully controlled circumstances (indoors, no kids
running around, etc.) we are able to use this supply to get
about 28 amps DC into the car's battery, via the QC port, with
no modifications to the car. Yes, around 10 kW in, until the car
tapers off the charging rate.
This power supply might be able to provide a bit more power,
but we are using 240v via a standard 50 amp breaker, and that
is enough power to both get a rapid-charge from this "mini-QC"
system that I affectionately call "Robomo", and test the interface
meaningfully.
Yes, we managed to test the breaker too, and it does work!
We have several people that are already saying "I want one!",
but it is not wise to encourage anybody to duplicate this test
equipment. However, for those capable of contributing to the
project, with sufficient skills, and with sufficient safety
considerations taken care of, we will consider sharing more
details, and providing some guidance toward duplicating what
we are doing. PM me if you qualify and want to spend
two or three thousand, and substantial time, to participate.
However, it is premature, and might even be considered
a bit irresponsible to make our guesses and conjectures
fully public at this time.
Indeed, we could use some appropriate legal help to better
evaluate just how and when to share what we are lerning.
Any volunteers, please PM me.
We are still concentrating on the control of the charging session,
along with the necessary control of a non-optimal power supply,
as needed to do the charging-session experiments.
As we get more comfortable with our results, we will try charging
other LEAFs, then other year models, and possibly even other
QC capable makes and models. Sure, there really not many, yet.
So, a parallel effort should be the design of a suitable power
supply. One with up to 50 amps 240v (12 kW input) is the
first goal, with a 24 kW input version kept in mind.
Folks with suitable skills, like switching transformer design,
driving circuits for regulating the output voltage and current
of an efficient, air-cooled, compact power supply are needed.
Sure, we can bumble through it, but real experience would
be a substantial help.
We are carefully avoiding or regulating contact with
those that have access to, or appear that they might
or could have access to, any proprietary or "regulated"
Chademo information. The associated constraints
are just way too burdensome, even if they might
not be legally enforceable. Remember Tucker?
More later, as appropriate.
Cheers, Gary