Article View: sci.electronics
Article #7401Electronic Car Brakes
From: Forrest Cook
Date: Mon, 24 Sep 1990 03:38
Date: Mon, 24 Sep 1990 03:38
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>[ 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)
/|\ /|\ {husc6|rutgers|ames|gatech}!ncar!stout!cook
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Path: arc1-ca.pugleaf.net!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