I am making plans to make plans
to build a custom motor over the winter.
However, I also need a reliable way to measure the output of this motor against a known quantity. I have been running hub motors for a while now and I understand pretty much what they can do and how they behave. I don’t have a lot of space, and my pockets are not gold-lined. A table-top solution would be great!
With that, I am considering using a known device, a 9C 2806 hub motor that I would like to use and be able to place a load on it as if it were stuck in regen-mode. I could then take another 9C 2806 hub motor (I have several in great condition) and use it to run through a series of tests as a motor against the hub-dyno in order to build up a profile of the known-quantity: 9C against 9C mano a mano
Once that research is completed, then when I finish the construction of the first of several prototypes, I could run through the same or like tests, and be able to compare and contrast the performance. Make sense?
So the question is, has anyone made something like this before, and could it be as simple as placing a controller onto the hub with ebrake=on
and measuring the resulting wattage during regen as the hub is rotated?
Naturally there would have to be a dummy load, though I am less worried about that. However - I can’t think of how to make the device any more simple or vastly cheaper.
Floating the balloon, KF