If it is a normal AC genset you have the AC (120/240) to DC conversion losses through your charger. Ideally if you find a DC genset that can output near 85VDC, or modify a genset to output directly to 85VDC you can minimize your losses.
Jeff On Tue, Apr 1, 2008 at 12:37 PM, john fisher <[EMAIL PROTECTED]> wrote: > so Jeff, > > using a standard genset in a series hybrid means conversions DC - AC - DC > and you say "significant" losses. > So that leads to some sort of custom voltage regulator off a DC generator > which then dumps straight into the batts? > I wonder what the DC output of a standard genset is? If its in the voltage > range, like 85V, you could bypass the AC circuit. > > oh yeah *I* am assuming a pluggable series hybrid, not a straight series > hybrid. Dunno what Andrew has in mind. > > and yeah I have been thinking about the ICE efficiency and MC packaging too, > but thats another thread. > > John > > > > Jeffrey Blamey wrote: > > > If you are determined to go this route: The generator to battery to > > motor controller/motor route unless the gen output is a close match to > > your battery pack voltage is going to suffer from the AC to DC > > conversion losses (significant). So for a 72V battery pack the output > > of the generator would have to be in the 85V range with regulation. > > > > > >
