On Aug 11, 2014, at 12:49 PM, Robert Bruninga via EV <[email protected]> wrote:
>> As for regen, the efficiency improvement you get over DC will vary... >> Typically the improvement is small, because you just don't spend >> that much time braking. ... Learn to make use of coasting and >> you can probably match the range improvement of regen. > > Amen. With my CITY car I agonized over all kinds of designs for Regen but > once I started driving it, I realized I hardly ever used the brakes. > (somewhat due to them being old and worn out in the first place)... but > still, after also driving a Prius and similarly avoiding brakes or regen, > the amount from regen is not worth it (I am going on the assumption that > regen in DC traction motors causes undue arcing of the comutator...) I already drive like that, too...but I'm still anticipating regen as being very helpful in my wacky hybrid Mustang. Sure, if it marginally improves efficiency by recovering a bit from deceleration, that's great...but what I'm *really* looking to use it for is to maintain a minimum charge in the batteries in hybrid mode. That will let me use the electric motors primarily for acceleration even after the end of the hybrid mode driving range. And, since the electric motors are much more efficient at accelerating than the ICE, the minimal parasitic drag to just barely keep a bit of usable charge in the batteries should still balance things in the favor of both economy and performance. For a pure BEV conversion, I don't think I'd care all that much either way about regen. b& -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: Message signed with OpenPGP using GPGMail URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140811/e8c7e624/attachment.pgp> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
