prberg said:
would think the car would be smart enough to know that it needs charge, and it should start charging around 11pm.
-Peter
It may depend on whether you set an end time for that charge time, which you can do but don't have to do. With no end time, and logic that says "oh, I'm some arbitrary amount of time past my start time, but now I'm plugged in, I better start charging", it seems your car could essentially decide on it's own to accidentally shaft you on TOU rates.
Example:
timer set for midnight start (beginning of super off peak)...no end time set, just 80% SOC, which should complete before super off peak ends IF you actually start at midnight.
you get home at 3am (which as far as the car knows should not be interpreted any differently than showing up at, say, 12:20pm) and plug in. car starts charging because it's past the start time for that un-initiated timer
5 am arrives, and you switch out of super off peak, but car happily keeps charging. Cha-ching. So maybe it doesn't allow that.
Now, if you did have an end time on the timer, the above obviously isn't relevant...but it might be worth trying (plugging in during the window of a bounded timer, not just a start timer).
On the other hand, we had a timer set for 8pm last night, plugged in our Clipper (at around 7:30), then (mistakenly, it turns out), pushed the button on the Clipper. It started flashing green (the EVSE) - I thought maybe that meant it was waiting for the car to ask for juice, but it turns out it basically disabled the clipper because the car was NOT asking for juice at the time. At 8pm, the car made a noise (chime), but did NOT start charging. It was, however, plugged in, which is a difference from your scenario. But, once we cycled the clipper (one push on the button), it did start charging, and technically it was after the timer start time. Again, since we actually had the cable in the whole time, this isn't quite the same situation...
There's also something about the dash leds blinking for 15 minutes when you exit the vehicle with a timer set...that may actually indicate a window of time during which you need to plug in for the timer to be effective?
Now that I've finished typing this non-authoritative answer, maybe somebody will have already replied with some useful info...