MIT/FIRST DIY Segway

[Salik Syed]

Originally Posted by Qbranch

I'm amazed they got enough power at a reasonable current with 12volts... I think the segway runs like 48 or 96 volts to cut down on current/wiring weight.

Anyone know what motors they used? PWM drives? (Being MIT, they probably put their own FET bridges together)

As a note... i'm not sure you could build this with the current FRC control system... the 120Hz max chop rate on the victors would probably make your servoing relatively rough (Segway probably has an update/chop rate of several KHz)

Amazing project... now if I could just pitch having to build one to my boss so I had the funds....

-q

I think it's very doable, as far as power needs are concerned I don't think they should be much more than your average FIRST robot, especially considering that most people don't ram into things or push on a Segway. (Albeit Segways need to go faster, and probably weigh ~40-50 lbs more too... assuming we are dealing with lightweight nerds like myself)

120hz is actually a relatively fast rate for this type of application, a few kilohertz seems like overkill, even for the REAL Segway


Build two and tell your boss he gets to keep one!