On Sun Feb 12 08:34:05 PST 2017 ev@lists.evdl.org said: >Doing the math with the typical 250 Whrs per mile of a Prius, then at 60 >MPh, that 250Whrs per minute or 15kWh over an hour so you need a 15 kW >generator just to cruise on level ground pusing a Prius. For pushing a >heavier car full of Lead-acids, not nearly as efficient as a Prius You >might need 25 to 30 kW.
It really depends on the specifics of his conversion. I have one of the least efficient EV's around. (F250) It cruises at 60mph using around 30KW. It's likely that his conversion will use less than that. I'm actually looking into a genset range extender - but not a cheap one. I'm looking at using a 4 cylinder BMW engine (with all pollution controls intact) to drive a generator head. I MIGHT use a 3-phase generator adjusted to put out around 300V DC (rectified) - but even that has issues with essentially being a "bad boy" charger. (only pulls current from the peak of the AC waveform on each phase) So would likely need at least a 50KW capable generator head. The other choice is to use something like 3 PFC-50 chargers, one on each phase so they are isolated. That runs into lots and lots of $$$ though. Note: Yes, I do actually have an identical diesel F250. That's not an ideal solution to longer trips though. I make a fair number of trips that are about 150% of my range. So I have to use the diesel. (I don't have a CHaDemo port, and am not interested in waiting 4 hours for enough charge from a level 2 to get home.) The Diesel gets 16mpg, and isn't super reliable. I've had to do semi-major repairs on it about twice a year. I would probalby get better than 16mpg from the BMW genset - and I wouldn't need to run it for an entire trip. -- Worlds only All Electric F-250 truck! http://john.casadelgato.com/Electric-Vehicles/1995-Ford-F-250 _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
