JoeS wrote:Coulomb, thank you very much for your detailed explanation with the schematic - I should have reviewed the J1772 interface myself before posting. The concept of the J1772 switch triggering the vehicle controller to first ramp down the charging power had escaped me.
. . . As a result, we're now going to become far more proactive in using the Remote for the timing of our charging and I'll eliminate use of the mechanical timers completely. . .
"Hear, Hear" on the kudos and explanation. In fact, I went out and checked the portable chargers that we have and use (Mitsu, Volt, and Turbocord) and "tested" the Volt (wife ran off with the Mitsu!). Pressing the button alone without withdrawing the J1772 Turbocord caused the Volt to shut off charging and noticeably turned the charging light on the dash off. I would imagine that that such voltage drop is measurable on Canion or other programs?
So on the other side of the argument, is it fair to say that if one simply plugs in the J1772 in without engaging the button, that the charging process will not start?
Does this perhaps explain our experience why on occasion when out at a public charger where the button doesn't engage, that charging fails to start? (see Plugshare activity feed for a number of other, similar, examples)