This is a great improvement to my EV charging automation. I installed a wallbox, and extended the range of charging power from 1.4-2.4 kW to 1.4-11kW. This does not seem like a complicated thing, but if you have a wallbox yourselves, you know that 3-phase wallboxes start at 4.5kW. And 1 phase wallboxes end on 3.8kW. How did I manage to get control through the whole range? Check it out!
The script: gist.github.com/bruxy70/1ca13...
00:00 - intro
00:44 - issues: controlling cars, not wallbox
01:21 - issue: unofficial API
02:29 - issue: power ranges
03:59 - EV charging types
08:25 - EV charging limits
09:48 - switching from 1phase to 2 or 3phases
12:40 - asymmetric inverter limits
13:52 - limiting the frequency of phase changes
14:41 - switching phases
15:49 - controlling charging current
16:58 - script walk-through
31:35 - script review in YAML
33:46 - sharing script
34:13 - calling script by automation - charging modes
36:18 - outro