How does the hydraulic regen operate?
I am considering using 360% variable Nu Vinci cycle hub as a method of varying the speed of an alternator , to enable controlled light braking as the vehicle speed reduces. It seems to me that the hub must be able to handle a persons weight standing on a pedal, so with apropriate gearing / ac clutch to disengage/ and 4:1 belt to the alternator, A variable load capable of regenerating braking may work. Say 2-3 kw of Braking load, which would be useful recovery.