PWM an electromagnetic (A/C) clutch?

Daniel Houlton houlster at user1.inficad.com
Wed Dec 19 07:34:16 GMT 2001


Any thoughts on how an A/C type clutch would like being
PWM'd?

I've been thinking about the clutch used on the supercharged
MR2.  It's similar to an A/C clutch.  I've got an Eaton M90
installation just about completed and was toying with the
idea of using an electric clutch on the pulley to limit boost
and/or have a 'valet' mode.

In theory, you could PWM the clutch to limit SC rotor speed
to get any boost level you want up to max boost.  Not sure
how it would work in reality though.  Seems the clutch 
would maybe over-heat, or just wear out as they're not 
really designed for modulation.

Any thoughts?


thanks
--Dan
houlster at inficad.com

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