Interesting concept. Would the electric motorcycle conversions have to be insured like the regular engines? (Size of engine =insurance rate etc.), or be like a motorized bicycle(no insurance or license needed)?
I can imagine using lithium ion batteries would reduce the weight slightly in the build-your-own link. On Fri, Feb 17, 2012 at 8:27 AM, paul annen <[email protected]> wrote: > kurt, i think this is more of what you are looking at? > http://www.electricmotordepot.com/products/EnerTrac-Hub-Motor-MHM602.html > > > On Fri, Feb 17, 2012 at 9:27 AM, paul annen <[email protected]> wrote: >> >> gerrr it helps if i paste the link >> http://www.instructables.com/id/Build-Your-Own-ELECTRIC-MOTORCYCLE/ >> >> >> On Fri, Feb 17, 2012 at 9:27 AM, paul annen <[email protected]> wrote: >>> >>> ironically this was in the next email i opened this morning. i havent >>> read it yet, but i thought i would post >>> >>> >>> On Fri, Feb 17, 2012 at 9:25 AM, paul annen <[email protected]> >>> wrote: >>>> >>>> very true, and i also imagined that the reserve battery would also >>>> function as the starting battery. with a 24v or higher system, i would >>>> recomend replacing the starter with one made for the higher voltages. >>>> >>>> it might make the bike feel totally different, but what about putting >>>> your hub motor in the front wheel? >>>> >>>> >>>> >>>> On Thu, Feb 16, 2012 at 12:49 PM, Kurt Nolte <[email protected]> >>>> wrote: >>>>> >>>>> I was actually imagining it going the other way, not sure why I didn't >>>>> make that clearer. I envision the motor pack also being the starting >>>>> battery, as well as the reserve battery. >>>>> >>>>> One or two 12V cells would be devoted as the "stock" battery, and with >>>>> a little coding one could even let the pack controller use the 12V >>>>> alternator to recondition cells as life goes on. Any retrofit package for >>>>> this would likely include a rewound alternator, however. >>>>> >>>>> I realize not all bikes have a rear drum hub, but then not all bikes >>>>> have a chain drive either so that wouldn't be universal either. My target >>>>> market is still largely drum rears, and it would be easy to swap a drum >>>>> rear >>>>> wheel on those with only disc brakes back there; there are many options, >>>>> factory and aftermarket. >>>>> >>>>> Kurt. >>>>> >>>>> On Feb 16, 2012 12:35 PM, "paul annen" <[email protected]> wrote: >>>>>> >>>>>> you are correct that higher volts will require less amps to do the >>>>>> same work (watts is watts is watts), and i do like the retrofit option, >>>>>> you >>>>>> could also fairly easily use that rear break to do >>>>>> some regenerative functions as well. but not all bikes have the option >>>>>> of a >>>>>> rear wheel hub design, you might be better off driving off the existing >>>>>> chain. this way you could also incorporate it as a chain tensioner. >>>>>> >>>>>> are you imagining using the bikes charging system? we all know that >>>>>> these are weak links in the vintage hondas (another side note was a >>>>>> thought >>>>>> to have a small 30amp automotive alt mounted on the swing arm with a >>>>>> sprocket to bypass the rectifier, spring pull the tension on the alt and >>>>>> you >>>>>> have an automatic chain tensioner) >>>>>> >>>>>> >>>>>> On Thu, Feb 16, 2012 at 12:25 PM, Kurt Nolte >>>>>> <[email protected]> wrote: >>>>>>> >>>>>>> Sounds like a good idea for a Range Extended Battery Electric, which >>>>>>> I feel is probably where the auto industry is going to head, for better >>>>>>> or >>>>>>> worse. >>>>>>> >>>>>>> I like the modular idea, especially the ability to add/subtract and >>>>>>> hot-swap battery packs. One of my primary ideas would actually be to >>>>>>> devise >>>>>>> a "retrofit" package to hybridize most bikes with minimally invasive >>>>>>> common >>>>>>> parts. >>>>>>> >>>>>>> The core concept its the use of a "hub" or "internal stator" motor >>>>>>> design, pressed into place of the rear drum brake. This allows for a >>>>>>> direct >>>>>>> drive DC design, high torque and the ability to run electric-only for a >>>>>>> time. >>>>>>> >>>>>>> Rear braking would now be electric, using a variable resistor to >>>>>>> determine braking load, tied to the stock brake pedal. The motor >>>>>>> controller's speed sensor would allow for ABS functionality without >>>>>>> additional parts, as a bonus, and the whole motor assembly shouldn't add >>>>>>> more than a pound or two, tops. >>>>>>> >>>>>>> Using this, I'd also downsize the engine, generally by a 1/3 but >>>>>>> obviously dependant on the individual bike. The motor torque added in >>>>>>> the >>>>>>> bottom end of the range would allow riders to feel like the engine its >>>>>>> much >>>>>>> bigger. >>>>>>> >>>>>>> I think that both motor and pack should operate at high voltage, >>>>>>> preferably 36-72+V. This will allow for smaller, more flexible wires and >>>>>>> also provide a beneficial bump in torque. The pack can still be be >>>>>>> charged >>>>>>> by a 12V alternator using the right connections and isolator circuits. >>>>>>> High >>>>>>> voltage packs are also better for the controllers, limiting max current >>>>>>> flow. >>>>>>> >>>>>>> That's it from me for now, when I'm on a proper keyboard I'll add >>>>>>> more. >>>>>>> >>>>>>> Kurt >>>>>>> >>>>>>> On Feb 16, 2012 10:42 AM, "paul annen" <[email protected]> wrote: >>>>>>> > >>>>>>> > well, my idea was to use as many stock Honda parts as i could, so >>>>>>> > that i could market it to honda after. i also want to use a 24v >>>>>>> > system. this >>>>>>> > is to make the charging system easy. motor controller and basic >>>>>>> > battery set >>>>>>> > on the chassis with modular extra batteries in saddle bags and a >>>>>>> > "trunk" >>>>>>> > with the engine and mobile charger (also modular). my engine/mobile >>>>>>> > charger >>>>>>> > is about as simple as it gets, small engine (can offer diffrent >>>>>>> > engine sets >>>>>>> > for gas, diesel, LP.... ) set at a constant rpm coupled to a 24v >>>>>>> > automotive >>>>>>> > alt (yes they make them, mostly for bigger trucks). >>>>>>> > >>>>>>> > the modular thought is that if your daily commute is short enough >>>>>>> > you dont need the extra weight (and wear) from the engine >>>>>>> > and batteries, >>>>>>> > simply plug it in to charge, but longer commutes the >>>>>>> > extra batteries might >>>>>>> > be needed, for longer trips you will want to have the engine for "on >>>>>>> > the >>>>>>> > road" charging. yes, while cruising you will probably use more power >>>>>>> > then >>>>>>> > the alt can keep up with, but if you stop every so often (and leave >>>>>>> > the >>>>>>> > charging engine running) you can build charge back up. >>>>>>> > >>>>>>> > my first concept was using standard car batteries, (i was 12, cut >>>>>>> > me some slack) now i am thinking that li ion makes a much better >>>>>>> > choice, but >>>>>>> > thats also where the modular design comes in, as battery tech >>>>>>> > improves, you >>>>>>> > can upgrade without scrapping the whole bike. >>>>>>> > >>>>>>> > not that ive spent any time thinking about this at all.. comments >>>>>>> > and suggestions are welcome.. >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>> To post to this group, send email to >>>>>>> [email protected]. >>>>>>> To unsubscribe from this group, send email to >>>>>>> [email protected]. >>>>>>> For more options, visit this group at >>>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >>>>>> >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>> To post to this group, send email to >>>>>> [email protected]. >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>> To post to this group, send email to [email protected]. >>>>> To unsubscribe from this group, send email to >>>>> [email protected]. >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >>>> >>>> >>> >> > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. 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