There are significant "Hotel loads" in most EVs/Hybrids. Someone did an experiment a few years ago and discovered 32mph was the ideal "sweet spot" in a Tesla Model S to get the most range. Any slower and range went down because of the overhead.
For instance, the 12v battery will get low in a car sitting for awhile, then when you start it, the DC-DC will take a gob of power from the HV pack to top it off. This means your wh/mi during this time is terrible. On Wed, Feb 3, 2021 at 3:30 PM Peri Hartman via EV <[email protected]> wrote: > Common sense tell me that at, say, 5mph the energy to move a car is so > minimal that all these inefficiencies together would still be far less > than when traveling at, say, 30mph on a public road. (Your mother must > have a long driveway, but still short compared to going shopping.) But, > prove me wrong :) > > A few people have mentioned that the very short trips are fouling up the > range calculations. If the algorithm is including parasitic loses in the > calc, this explanation makes the most sense. > > Otherwise, I'll stick to my earlier theory, about cell damage. Seems > unlikely, though. > > Peri > > << Annoyed by leaf blowers ? https://quietcleanseattle.org/ >> > > ------ Original Message ------ > From: "Mr. Sharkey via EV" <[email protected]> > To: [email protected] > Cc: "Mr. Sharkey" <[email protected]> > Sent: 03-Feb-21 3:20:10 PM > Subject: Re: [EVDL] Pandemic Cell Fade > > > > the milage of driving up and down the driveway is much > > > worse than actually driving somewhere > > > >This would be true in any vehicle. Lubricants wouldn't have time to heat > up and become less viscous, tires would stay stiff on a short run, brake > pads and calipers would have more residual friction (especially if there is > any surface rust buildup on the rotors), etc. Of course on an ICEV, the > engine management during warmup would be a large factor as well. > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210203/717ea619/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
