It also as an estimated time to charge display. My charge timers are set to 80%, so this display presents the estimated time to charge to 80%. Like the "peacock" gage it is not linear, but I think it has a little better resolution than the "peacock" gage.
The accuracy of its estimate is off by about an hour. When it estimates six hours to charge, it takes about five. Ed On Thu, 9 May 2013, Peri Hartman wrote: > It has no AH or kWh of any sort. Just the "peacock" gage, showing coarsely > the remaining charge. > > Peri > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of Bruce EVangel Parmenter > Sent: 09 May, 2013 7:45 AM > To: Electric Vehicle Discussion List > Subject: Re: [EVDL] 2011 or 2012 leaf - 60 miles at 65 MPH - NO WAY! > > The Leaf' s guess-o-meter is sounding more and more like the ancient way > EV'rs would know their pack's SOC by using an in-dash volt meter that > read the pack's surface voltage. I found that to be very inaccurate. > > It wasn't until I had installed a link-10 e-meter that read out AH in or > out that EV driving became even more beautiful > http://brucedp02.150m.com/lvnedra02/f_lvnedra020323-015.jpg > http://brucedp02.150m.com/saced02/saced02-04.jpg > > > [That e-meter product is no longer sold, and its replacement has been > discussed on the evdl > http://electric-vehicle-discussion-list.413529.n4.nabble.com/Link-10-e-meter > -replacement-td4659492.html > ] > > With that e-meter, I could now know much more accurately how much energy > I had left in the pack, and mentally translate that to miles depending > on the terrain I would be driving (max miles on steady flat driving, > much less when climbing in the mountains, etc.). > > Doesn't the leaf have an AH or kWh display that would constantly show > how much energy is left in the pack? I would assume it does, so if I > could drive a Leaf EV (my body does not fit), I would use that AH or kWh > reading instead of using the Leaf's guess-o-meter. > > Like the way I used the old Link-10 e-meter during charging, I would > also use the (assumed) Leaf AH or kWh display to measure the charge flow > (showing how much the pack was depleted & the amps going in, so as to > know how much time would be needed before unplugging and hitting the > road again. i.e.: do I have time to do some shopping, and or grab a bite > of something healthy to eat?) > > > {brucedp.150m.com} > > > > - > On Tue, May 7, 2013, at 07:55 AM, Ed Blackmond wrote: > > The first thing you need to learn about your Leaf's instrumentation, is > > to completely ignore the Distance To Empty number. The best thing you > > can say about it is that it is inaccurate. For a DTE meter, there are > > two important numbers (and they are equally important): How far can the > > car go under the current conditions and how far can the car go under > > ideal conditions. The single DTE number on the Leaf has no relationship > > to either number. Learn to ignore it. > > > > Next, note that the state of charge meter is not linear. Learn how far > > you can go under ideal conditions on the last two or three bars. When I > > lose the third to last bar (two left), I know I can go about 25 miles > > under ideal conditions. In the 21 months (~23,000 miles) I have owned my > > Leaf, I have had to rely on this about 10 times. I can get 25 miles and > > that hasn't changed as the car and battery pack aged. Driving the same > > way I have never gotten more than six miles on the 12th bar (full > > charge); I can only get four or five now. > > > > The estimated time to charge at 120V is a little more reasonable > > indicator than the state of charge bars. This too is a bit non linear. > > I drive 12 miles to work and it shows 4 hours to 80%. Most days I stop > > at the gym for a few hours before work. This also takes 4 hours to 80%. > > When I power up after my workout and drive 1/2 mile to work, it shows 4.5 > > hours to 80%. When I come out to my car at lunch it shows another half > > hour loss. For some reason they add half an hour to this number each > > time the car is powered up. > > > > While it takes 4 hours to 80% for me to drive the 12 miles to work, I can > > make the trip home and back and back home on 8 more hours. So even with > > this, it is necessary to apply a non-linear function to see how far the > > car can go. On mine, the low battery warning comes on at 15 hours to 80% > > and I have driven as far as 19 hours. By this point the DTE number has > > shut off making it just as useless as when it is on. > > > > The important thing to note is that while the instrumentation when the > > car is fully charged (to 80% or 100%) has changed a bit over the last 21 > > months, the performance at the bottom as remained constant. That is a > > comforting thought. While my total range is a bit less than it was > > originally, the range near at the bottom has remained constant. If I'm > > less than 25 miles from home with more than two bars showing, I know I'm > > good. > > > > Also note that other people report slightly different behavior. It is > > important to know the characteristics of your car. > - > > _______________________________________________ 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)
