Regen boost @ low speed

In case y'all haven't been following the thread on
Prius_Technical_Stuff, I presented a nice little benchtop
experiment that shows why regen works way down to like 7 mph
even if the ordinary voltage delivered by the MGs wouldn't
be able to get anywhere near the battery voltage.
http://techno-fandom.org/~hobbit/cars/boost-hack/
.
And in a different context using the real MG1, we were able to
get spikes well over 400V just by manually making/breaking a
shorting lead across the windings while cranking it slowly.
.
_H*