Originally Posted by
polyphrast
.....
Regarding the dyno hubs:
Here is an article about dyno hubs from Winfried Schmidt (the engineer and founder of Schmidt/SON) incl. electrical models. (Sorry, again in german from Fahrradzukunft.de, google translated)
that is a good article! thank you!
I think I've seen the core losses modeled like that before, but I don't think I understand how the test data reveals the value.
My guess is that you must know how much mechanical power is being put into the dynamo rotation, and that is equal to the core losses when no electrical load is connected to the dynamo.
Is there another way?
Steve in Peoria