the cost associated with batteries to provide 100 Amp hours at 96V would be tremendous. Quick check on google it would take 30 of these http://www.ebay.com/itm/Electric-Vehicle-Battery-CALB-LiFePO4-100Ah-EV-Batteries-4-pack-/170765730402#vi-content connected in serial for a total cost of $17,550, Plus hub motor, controller, charger, and cabling. You are looking at the price of a prius, just to ride a motorcycle on the highway for an hour. It wouldn't get me to work and back.
On Fri, Feb 17, 2012 at 11:27 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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