RE: 1-O-X revolutionary digital EV motor)

["Roger Stockton" <rstockton@delta-q.com>]

...and it is only achieved at the very top of the 0-10mph range.  The
original mention of single-digit efficiency only observed that such
operation points exist, and I don't think that is disputable given that
we know efficiency at 0RPM is 0 and the efficiency plots you've pointed
out both show efficiency plummeting below ~1000RPM.

Consider the AC Propulsion graph; they don't even bother showing what
happens below 1000RPM and yet if you look closely at the tightly spaced
lines in that area you will already see numbers like 63%.  Just like a
cliff on a topographical map, the closely spaced efficiency lines in
this area tell you that efficiency is falling like a rock and could
easily be in the single digits by about the 200RPM mark.

Cheers,

Roger.

> -----Original Message-----
> From: owner-ev@listproc.sjsu.edu
> [mailto:owner-ev@listproc.sjsu.edu] On Behalf Of Victor Tikhonov
> Sent: October 30, 2001 8:13 PM
> To: ev@listproc.sjsu.edu
> Subject: Re: 1-O-X revolutionary digital EV motor)
> 
> 
> Sure, but 70% is far better than the single digits quoted in previous
> mail.