[Ovmsdev] 12V battery alerts
Mark Webb-Johnson
mark at webb-johnson.net
Wed Oct 30 07:54:44 HKT 2013
Can someone try it at 2.0V (rather than 1.5V) and see if it solves the false-alerts problem?
Regards, Mark.
On 29 Oct, 2013, at 5:10 pm, Rolf Welde Skeie <rwskeie at gmail.com> wrote:
> Ok, it seems like a few have similar issues.
> The logic behind the calculations seems to be reasonable, it is the assumption that there is a 1.5V difference between charging/non-charging state which is not generally applicable.
> From my observations it seems like increasing this to 2.0V would take care of most mis-firing events.?..
>
> Disclaimer: I'm not an expert on batteries...
>
> Running on 2.5.5 experimental/TC
>
> Rolf
>
> On 10/29/2013 10:00 AM, Matt Beard OVMS wrote:
>> Yup, I also get this message and it would be great if it were working
>> properly, but it actually fires at 13.1V which is far too high.
>>
>> Matt
>>
>>
>>
>> On 29 October 2013 08:46, Rolf Welde Skeie <rwskeie at gmail.com
>> <mailto:rwskeie at gmail.com>> wrote:
>>
>> I have the following features set:
>> #0=1, #8=1, #9=1, #15=1, all others =0.
>>
>> Can't remember which one made it work, but one of them did, my guess
>> would be #9 :)
>>
>> Rolf
>>
>>
>> On 10/29/2013 09:38 AM, Håkon Markussen wrote:
>>
>> I never get this alert.
>> I have a Think City (as Rolf Skeie) and use the iOS-app.
>> I have tested on both an exhausted aux-battery and on a brand new
>> battery in perfect condition.
>>
>> Br.
>> Håkon
>>
>>
>> 2013/10/29 Thomas Bergo <thomas.bergo at gmail.com
>> <mailto:thomas.bergo at gmail.com>
>> <mailto:thomas.bergo at gmail.com <mailto:thomas.bergo at gmail.com>__>>
>>
>>
>> I'm also get this alert.
>>
>> Regard, Thomas
>>
>> tirsdag 29. oktober 2013 skrev Rolf Welde Skeie følgende:
>>
>> Hi,
>>
>> I'm getting 12V battery alerts ala:
>> "MP-0 PAALERT!!! 12V BATTERY CRITICAL (13.2V, ref=14.7V)"
>>
>> So the 1.5V hardcoded difference between charged and
>> non-charged
>> state seems to be too low. The battery is working just
>> fine and
>> has been tested without any issues, but seems to
>> stabilize at
>> approx. 12.8V.
>>
>> Is this a global issue; are others experiencing this as
>> well?
>>
>> If this is a issue only relevant to my car: would it
>> make sense
>> to allow for controlling some of these kind of values
>> through
>> parameters?
>>
>> BTW, I believe the Think City module could be put in the
>> production builds, it seems to be working fine.
>>
>> Best regards
>> --
>> Rolf Welde Skeie
>> Solåsen 27, 5223 Nesttun, Norway
>> +47 92403016 <tel:%2B47%2092403016> <tel:%2B47%2092403016> /
>> rwskeie at gmail.com <mailto:rwskeie at gmail.com>
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>> --
>> Rolf Welde Skeie
>> Solåsen 27, 5223 Nesttun, Norway
>> +47 92403016 <tel:%2B47%2092403016> / rwskeie at gmail.com
>> <mailto:rwskeie at gmail.com>
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>
> --
> Rolf Welde Skeie
> Solåsen 27, 5223 Nesttun, Norway
> +47 92403016 / rwskeie at gmail.com
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