I bet if you put a single larger wheel on the front, extended about 3 feet and souped it up a bit it might make an interesting ride. Lawrence Rhodes.... ----- Original Message ----- From: "Thomas Shay" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, September 29, 2002 4:16 PM Subject: Electric Wheelchairs (was Hub Motors)
> The web site in the original message, > http://www.wheelchairmodifications.org/ > is an interesting source of information about > electric wheelchairs. It's worth a visit if > someone you know and care about needs an > electric wheelchair. Even if you don't have a > need to know about electric wheelchairs, > reading about them can be an interesting > digression from our usual EV discussions. > > My first EV was an old electric wheelchair > that I bought for only $25 dollars. It had flat > tires and missing batteries and was thoroughly > covered. with mud. After cleaning it, fixing the > flat tires and connecting two 12-volt batteries > to provide 24 volts, it ran great! I drove it > around in my driveway and once took it to > a nearby shopping mall to try it out. It's an > interesting experience to control a vehicle with > a joy stick. It's also a chance to get some sense > of what it might be like to need a wheelchair for > mobility. And it's fun to drive. > > This EV is a wheelchair with 24-inch rear > wheels and smaller front casters. All wheels > are fitted with pneumatic tires about 2 inches > wide. Each rear wheel is driven by an electric > motor with an integral gearbox and belt drive > from the gear box to the wheel. Top speed > is about 4 mph. The controller is in a box about > the size of a child's lunch box and uses old > fashioned transistors. > > I don't know if electric wheelchairs are considered > proper electric vehicles for discussion here or not. > I think they should be. > > Tom Shay > . > ----- Original Message ----- > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Sunday, September 29, 2002 9:51 AM > Subject: Hub Motors > > > > Hi, think I got this working now, sorry AOL is free for me to use, so i > use it. > > > > I have a quesiton about those hub wheel motors, like the 1000 watt model > at http://abc.eznettools.net/D300013/X300109/eKits2.html > > > > Can I reverse them by the controller or a custom switch? > > > > I dont know if an electric wheelchair is considered an EV, but its my only > way to get around and at 4-6mph its slow going and at that, I have to deal > with over heating because of the small 400 watt motors and severly limited 2 > channel 70 amp total controller and thermal roll back. > > > > I want to make a standard looking wheelchair with 2 of thoese motors on > the rear, then mount hand rims to them for manual operation, put 4 batteries > under the seat for the 48 volts, then find a 48 volt charger or use 4 12 > volt ones, 1 for each battery. Then rig up a joystick like to control it for > the long haul and use my hands on the hand rims like a unpowered wheelchair > indoors. > > > > Wheelchairs steer by braking the inside wheel and or accelerating the > outside one and in tight areas, even reversing the inside wheel. > > > > My goal is to run 15mph with tons of torque. I want to run till my > batteries die or I get a flat. I dont want to have to stop and wait for > something to cool down or some the controls to get lax or sloppy as it warms > up. I hope the 2 1000 watt motors would be heavy enough for continious use. > I am thinking of using the wheel size up to 24. I need to do more planning > for the frame for the ride height I want to make up for my long legs. > > > > Thanks for any input, sorry about the HTML thing. > > > > Jeff > > > > Richmond, VA, USA > > > > http://www.wheelchairmodifications.org > > > > >
