YASA beats own power density record pushing electric motor to 59kW/kg benchmark

> The motor’s performance on the dyno has exceeded even our most optimistic simulations

Not to take away from the exciting achievement, but I always found comments like this kindof unusual. Really, it exceeded even your _most optimistic_ simulations? If the high end of your simulated performance was below what you actually measured, I am worried that your simulation is seriously neglecting something. I used to work in decent depth with three phase bldc motors, so I feel I can say with some authority that these things _can_ be simulated, and while real world data is hard to exactly predict, getting something outside of the predicted range would generally be interpreted as a sign that your simulation isn't so good. But maybe this is just marketing-speak, and their simulations are actually totally fine.

> I used to work in decent depth with three phase bldc motors, so I feel I can say with some authority that these things _can_ be simulated

If I take it literally versus hyperbole and excitement, could there be uncertainty coming from the drive train design choices, system integration details?

Sure, but that sort of uncertainty should only increase the range of values you see out of the simulation. You could say “efficiency may range from 60% to 80%, so the output torque will range from X to Y”. If the real result is bigger than Y, something has gone wrong in your modeling or assumptions