Field weakening question

John in CR

100 TW
Joined
May 19, 2008
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I will soon have some Nucular controllers to use as my first foray into more advanced controllers, and have a question about field weakening. If I program controller settings to achieve a higher top end with field weakening, does that change operating efficiency at speeds below the extended to end? I rarely use the top 20% of the speed range on my bikes, so as long as there's no efficiency hit at normal speeds with field weakening, then I can run a lower voltage pack.
 
Hi John in CR,

To my knowledge, field weakening, FW, does not alter performance below base frequency, or RPM. And, FW is not necessarily detrimental to efficiency when applied.

Regards,

major
 
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