2. I think 2 PMGs could push that thing but you may want to spend your money on one of the prepped series of ADC motors. The mass of the GW is closer to a small electric car when you add in the batteries required than a lot of these other bikes.
Jeff 440lb, 72V, PMG-132, 4kw BP, Franken'ceptor -----Original Message----- >From: "Seth A. Keel" <[EMAIL PROTECTED]> >Sent: Aug 6, 2007 3:00 AM >To: [email protected] >Subject: [ElectricMotorcycles] More on motors > >Hello all, > >Great list. I've been following along for about 3 months now and it's >been very helpful to hear the comments and ideas from the members. >Travis' post has got me going, 'cause I'm interested in motors too. >There is a 1975 Honda Gold Wing disassembled in my basement and I'm >trying to figure out how to rebuild it. Which motor to get is the >current question and it's such a pivotal one that the rest of the design >is waiting for it. > >Here are a few questions that I'm struggling with. > >1) What's the difference in quality between ADC and D&D? > >2) Can a PMG-132 push my sled at 60mph for 10 minutes without >overheating? There's another 5 mi. of city driving on top of that to >get to my job. Can it be done on 60v or or should it be done with 72v? > >3) What's a typical watt/mi estimate for a bike that's around 1000lbs. >with rider? I've been using 300watts/mi. in my calculations. Is that >close? > >4) Do any of you use an overrunning clutch coupling, or something >similar, so the motor shaft isn't directly linked to the final drive? >An OCC is basically a freewheel. My diesel has a mpg readout in dash >which, even if it's not perfectly accurate, definitely shows that >disengaging the engine when it's not needed and coasting to stops saves >a lot of fuel. I'd like to do the same with the EM without having to >add a clutch. It would also eliminate any concern over the motor lockup >issue that was discussed recently. > >Any thoughts or suggestions would be very much appreciated. Thanks, > >Seth > >
