Well, I've gone and signed the papers and it's official - a new 2016 Soul EV is on the way!
Now for the fun part... I've been looking into EVSE and have settled on something for home.
Now I just have to figure out what to do about the longer trips where I will have 240v available at my destination (friends). The included charger is 12A Level 1, so very very slow (6km per hour, I've heard - maybe just over 1.1kw per hour after overhead).
I've considered building an OPENEVSE (I have an electronics background and this project looks quite simple).
Alternatively, I've also seen the evse-upgrade online, which provides you with an "upgraded" factory charger capable of 120/240v, 12A operation. I've been studying the J1772 protocol, and pinouts for the connector-to-vehicle. As I see it (and I could be wrong), the EVSE ONLY controls the current via signalling (duty cycle of the 1000hz square wave). I assume the onboard charger, then, is smart and watches for line voltage (120 vs. 240) and acts accordingly... I cannot see how this info would also be in the signalling. This makes intuitive sense to me as well, in case of any voltage drop, or slight local differences in voltage, etc. The charger would have to be able to adjust for that...
Fine... So the "upgraded" factory charger doesn't have to do anything to the signal. Aside from changing the cord, what exactly do they do to the EVSE to upgrade it then?
I was thinking about that, because I assume the factory included EVSE in much of Europe is running on 208v or 230v, no? 120v seems mostly isolated to NA. In the interest of mass production efficiency, I very much doubt there is much difference between the two models, internally.
I am wondering what the difference is between those (European) chargers, and ours in NA? Power supply to the controller, or something else? Relays?
If anyone has any info here, I'd love to hear about it...