Poor mans regeneration with alternator relay.

[R.I.D.E.]

I like the idea. I use the AC when I am in DFCO because the energy would be wasted otherwise.
With computers and knowledge of the times when efficiency is at a minimum, why not use the energy lost to friction braking to accomplish battery charge level replenishment.
In stop and go driving it would probably be possible to accomplish all battery charging with energy normally lost.
That is doubly effective from my perspective, energy wasted to energy recovered.
I know the concept of a combination starter and alternator is approaching commercialization. Maybe the application parameters could be expanded to allow some assistance from the integral starter-alternator for initial acceleration. A somewhat larger deep cycle battery (like a golf cart type but of a reasonable size) combined with the integral starter alternator, could provide automatic engine shutoff to eliminate idling as well as added power for a short period of time in initital acceleration.

Good thread.

regards
gary