On Sun, May 22, 2011 at 6:52 PM, John Gardner wrote: > ... If you're already got wheel ticks and a time base, you can trivially > compute accelleration... > > Yep. A 2nd accelerometer being unavailable (to sense grade), that occured > to me, eventually. Duh - If I was smart I'd be an engineer :) > > Per other comments, remember the DECEL lookup table. > > I agree that for high accuracy a torque sensor is the simplest approach. > > What's the point of getting acceleration? The quite a bit of the power if not the majority of power goes into battling the drag/friction/wind which will not affect the acceleration much. As far as I see it, measurement at some point in the drivetrain is the only way to do it, unless someone else has any other suggestions. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .