[Ovmsdev] Ampera Range

[Paul Churchley]

Yes, I think that we could adjust by temperature and tune it to be more
accurate through testing.


On 22 January 2014 06:28, Denis KRAUTH <denis.krauth at gmail.com> wrote:

> Hi,
>
>
>
> Yes, I agree. If we can not read the actual range estimation of the car
> from the bus, then we should use 50 miles (80 km) as ideal range.
>
> Estimated range could be something below that, using a multiplyer.
>
>
>
> What we could do to get a better estimate, is to use the temperature, as
> we have the value from the car.
>
> It should require a little testing, but we could find out a relation
> between temperature (both ext. and battery temp.) and the range.
>
>
>
> Denis.
>
>
>
> *De :* ovmsdev-bounces at lists.teslaclub.hk [mailto:
> ovmsdev-bounces at lists.teslaclub.hk] *De la part de* Paul Churchley
> *Envoyé :* mercredi 22 janvier 2014 02:36
> *À :* OVMS Developers
> *Objet :* Re: [Ovmsdev] Ampera Range
>
>
>
> In my experience the range from 100% in ideal conditions rarely exceeds 50
> miles. It does occasionally and many have done well over that but for the
> vast majority, for the vast majority of the time, an ideal conditions range
> is 50 miles.
>
>
>
> We have the SOC% so can we not simply use that to adjust the ideal range?
>
>
>
> My normal range varies from about 45 miles to about 30 miles depending on
> temp, speed etc so can we just adjust the ideal range by say, 4/5 to give
> typical range?
>
>
>
> I realise that these are not scientific ways to estimate range but perhaps
> that is about as good as we can expect for now? We can adjust these
> multipliers once we have had a chance to test it out.
>
>
>
> Could we use parameters to set a personal 100% ideal range and 100%
> typical range? The module could then provide a personal range based on our
> personal parameters and as we get better (or worse!) as EV driving so we
> could then adjust our personal preferences and tune our own personal range.
>
>
>
>
>
> On 22 January 2014 01:24, Mark Webb-Johnson <mark at webb-johnson.net> wrote:
>
>
>
> Seems to be a hard-coded constant:
>
>
>
> va_drive_distance_bat_max = MiFromKm(35);    // initial Battery distance
> in km
>
>
>
> I think we could be a bit 'smarter' with this - particularly given the
> 'ideal' and 'estimated' range indicators we have.
>
>
>
> Any ideas?
>
>
>
> Regards, Mark.
>
>
>
> On 22 Jan, 2014, at 12:17 am, Steve Gadd <ste_gadd at hotmail.com> wrote:
>
>
>
> That's odd because i've just noticed that in the past few days - the range
> now being displayed on my Volt, which used to be as you described, is now
> quite acurate?
>
> Steve.
>
>
> ------------------------------
>
> Date: Sat, 18 Jan 2014 08:58:56 +0000
> From: paul at churchley.org
> To: ovmsdev at lists.teslaclub.hk
> Subject: [Ovmsdev] Ampera Range
>
> Just a bit of feedback regarding the range displayed on the phone app for
> the Ampera.
>
>
>
> A full charge currently displays a range of about 22 miles. This is
> probably a bit over half the real range and well below the estimated range
> on the car dash.
>
>
>
>
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