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)
