[ref http://electric-vehicle-discussion-list.413529.n4.nabble.com/2011-or-2012-leaf-60-miles-at-65-MPH-NO-WAY-tp4662871p4662918.html ]
So, isn't there an add-on product that anyone offers for Production plugins that is akin to the e-meter I mentioned? Wasn't there a Leaf forum member called ?Enginr? that offered Leaf product add-ons? If not, then there is a business opportunity for some enterprising type to offer them. If someone did offer said e-meter, it should have at least the same abilities/features as the link-10, and perhaps more. Instead of a clunky piece of hardware that the customer would have to find a place for it to be mounted, maybe it could either be and app that is used on the smart phone, or the hardware is mounted in a hidden spot but its data fed to the on-board computer/infotainment system(? can data be fed to that system, or is it only a one-way output ability ?). If the on-board system had wireless/wifi and could bring up a web page, perhaps the data could be fed to that page and then it would show on the on-board display as a web-page. Production plugin drivers: -would you find an ability to read AH or kWh status of your pack, and know how many are going in or out of the pack, useful? -what other abilities/features o this e-meter product would you want? -would you want to buy said product? What price range? -Is there any room on top of the dashboard or under the dash in your plugin for this product? If so, how big or small should it be? Comments/corrections/ideas welcome. {brucedp.150m.com} - On Thu, May 9, 2013, at 08:36 AM, Ed Blackmond wrote: > 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. - - > 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. - > > -----Original Message----- > > From: ev-boun...@lists.evdl.org [mailto:ev-boun...@lists.evdl.org] 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. - -- http://www.fastmail.fm - Access all of your messages and folders wherever you are _______________________________________________ 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)