thats a great spreadsheet, one thing though [unless i missed it] document things like what the motor is and where you got it, etc.... its one thing i tell my students over and over is document everything cause a year later you forget most of what you did.
i see math is in your email, are you a mail geek too? Lennon <[EMAIL PROTECTED]> wrote: Thanks all - I really appreciate it. I wanted to build a repeatable all-new electric motorcycle that could be built from parts available online - for a reasonable price. As of now I'm using my old starter switch (right thumb) to activate regen (left throttle for variation). I might also use the front/back brake switch. The regen works VERY well, though I only get about 8% of my total trip energy back (on average). The batteries are being held on the inside corner by steel L-brackets (angle iron): http://picasaweb.google.com/lennonrodgers/ElectricMotorcycleDuringConstruction/photo?authkey=TSA-hd0m3WI#5183586083165766498 The batteries are pinched in on the L-brackets using custom outer brackets (welded using the same L-bracket material + narrow steel pieces): http://picasaweb.google.com/lennonrodgers/ElectricMotorcycleDuringConstruction/photo?authkey=TSA-hd0m3WI#5183585799697924882 http://picasaweb.google.com/lennonrodgers/ElectricMotorcycleDuringConstruction/photo?authkey=TSA-hd0m3WI#5183585958611714882 Threaded rod connects the two sides and applies the pinching/clamping force. The batteries are held rock solid. The only thing that holds them vertically is the L-bracket and friction. My range is about 25 miles. You might want to check out my initial calculations/estimates: http://lennonrodgers.googlepages.com/vehicle_calculations.xls My estimates were very close to the actual. Feel free to pick apart my calcs and find my errors. The estimates are done in Excel, and in a parametric way - so others can input their values (mass, batteries, etc.) -Lennon On Tue, Apr 8, 2008 at 5:25 PM, Johnathan Vail wrote: > > > It is an interesting idea. > > On the Lectra they have a switch on the rear brake pedal that activates > regen but you need to push a little further on the switch before the brake > drum engages. They hype this a little as not only regen but also a partial > antilock brake system. > > I haven't got the Lectra on the road yet but I did get the batteries > installed this past weekend: > > http://newts.org/gallery/Lectra > > It was bad weather this past weekend so I only drove it the length of the > garage... > > jv > > > Andrew Wowk wrote: > Good idea for a way to control the regen. I was trying to think of a way to > do this. This is so simple and elegant. Please let us know how it works. > > > On Mon, Apr 7, 2008 at 10:45 PM, Lennon wrote: > > > I finished my electric motorcycle and posted the info here: > > > > http://www.evalbum.com/1628 > > > > -Lennon > > > > > > -- > > Blog: http://volcano.newts.org > > harry Albuquerque, NM http://www.austinev.org/evalbum/1179 http://geocities.com/solarcookingman --------------------------------- You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost.
