AnsweredAssumed Answered

BLDC max current and e-bike application

Question asked by Adam Sida on Aug 10, 2012
Latest reply on Aug 16, 2012 by TomE

I have no idea where to start, so I placed my question to general discuss...


I have 2 question:

1. is it possible to make (from available freescale components) custom BLDC controller for higher rates, eg: 36V and 900-1500W ?

2. Would it be possible to measure realtime current with such controller and react on current changes ?


I wish to have elektro-bike controller application where I wish to change engine power based on biker's pedaling power contribution.


desired application description:

if my legs power is aprox 200W, motor runs idle on 10W (with max 900W limit), when I start pedaling, running motor should feel some XX% current decrease repeatelly on 50-70 RPM ( x 2 in fact) pedaling frequency. Bigger decrease = harder pedaling = put more power to motor until maximum.
When stop pedaling (no repeated current decrease) = engine power decrease to some minimal rate again.


is it possible to to make such application  ? If yes, what components should I use ?