Path: utzoo!attcan!uunet!wuarchive!cs.utexas.edu!rutgers!mephisto!ncar!stout.atd.ucar.edu!cook
From: cook@stout.atd.ucar.edu (Forrest Cook)
Newsgroups: sci.electronics
Subject: Electronic Car Brakes
Message-ID: <8581@ncar.ucar.edu>
Date: 24 Sep 90 03:38:22 GMT
Sender: news@ncar.ucar.edu
Reply-To: cook@stout.atd.ucar.edu (Forrest Cook)
Organization: Atmospheric Technology Division/NCAR, Boulder, CO
Lines: 17


>[ lots of interesting stuff about electric cars and relative efficiencies ]
.
Instead of saying it can't be done and then whining when the Japanese do it :-) 
....
How about electric car designs that brake by using the motor to charge back
into the batteries?  Such a system could probably save several tens of percents
in efficiency, especially for city drivers.  Are there any special tricks
involved in doing this?  I can see how it would be possible to slow down
by connecting higher voltage windings from the motor/generator to the battery,
but is such a system able to come to a complete stop and use all of the
braking for recharge?  Perhaps a PWM system would do most of that.

--
 ^   ^  Forrest Cook - <<< We all P for IP, We all BM for IBM >>>
/|\ /|\ cook@stout.atd.ucar.edu WB0RIO (This posting is my OPINION)
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