The other potential benefit of a controller I understand would be preventing overspeed, but this motor is supposed to be self-limiting. I don't know how that is accomplished...
On Mon, Nov 4, 2013 at 12:28 PM, <[email protected]> wrote: > Don't forget he has a hydrostatic transmission, so he can easily smoothly > take off, and easily vary speed. Also the blades are being driven off the > traction motor, slowing down via a controller will then slow the blades too > much. A controller would be minimal benefit in this case. > > -----Original message----- > Sent: Monday, 04 November 2013 at 07:03:23 > From: "Lee Hart" <[email protected]> > To: "Electric Vehicle Discussion List" <[email protected]> > Subject: Re: [EVDL] Michael's 48V lawn tractor/mower conversion: sanity check > Rod Hower wrote: >> I recommend using a motor control instead of a contactor. > > You'll want a contactor anyway, just as a reliable way to turn the darn > thing off (controllers tend to fail *on* i.e. a full throttle runaway). > But a controller certainly provides a lot smoother starting and speed > control. > > -- > "Obsolete" means nothing more than "the salesmen would prefer you buy > something else". -- Dave McGuire > -- > Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm > _______________________________________________ > 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) > _______________________________________________ > 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) > _______________________________________________ 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)
