[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.
-
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