"/I'll "second" that regen is important. Another example is city driving. If you have a lot of hills and stop & go every few blocks, regen can add a lot of range, even if it's only 70 or 80% efficient.
I don't have an obvious way to measure this. Has anyone else done so?/" I've posted data from my car on diyelectricar a number of times over the last 4 years. I data logged battery I, V, Ah with a TBS gauge, and vehicle miles, elevation and speed with a GPS. Doesn't seem to affect anyone though. As Lakoff, cognitive scientist, says "If the facts don't fit the frame, the facts are rejected." My data indicates that around half of my car's kinetic energy goes into potential energy in the batteries when stopping. Going down a 9 mile long hill, around 2500 ft elevation change, the energy into the batteries by regen was about 24% of what it took to drive up, and about half of the vehicle's potential energy at the top. On a short drive for a video, where I drove about 100 yards at 25 mph, stopped at a stop sign, turned left and drove about 1/4 mile at max 45 mph, turned right onto a freeway on ramp, accelerated onto the freeway and drove about 2 miles with max 70 mph speed, exited, stopped, turned right, drove about 1/4 mile, turned right and drove about 1/2 mile at 35 mph, regen was 10% of the energy used. I've also measured around 10% on other, longer local trips. Summary of some posts here: http://www.diyelectriccar.com/forums/showpost.php?p=366384&postcount=20 Would have posted here but can't do graphs/figures here. -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Fiat-500e-EV-close-to-perfect-tp4668392p4668489.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ 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)
