[Ovmsdev] 12V battery alerts
Håkon Markussen
hakon.markussen at gmail.com
Thu Nov 14 16:39:28 HKT 2013
Testing of false 12V alerts was successfully. No false notifications has
arrived from my Think City.
The conclusion is that car_doors1bits.CarON and car_doors5bits.Charging12V
have to be correctly sett according to the 12V-battery charging state and
car-state (in the vehicle-specific file).
No changes have to be made at net.c (car_12vline_ref -15).
Br.
Håkon
2013/11/13 Håkon Markussen <hakon.markussen at gmail.com>
> I have now rolled back locally the net.c to «car_12vline_ref - 15» and
> added
> car_doors1bits.CarON = 0;
> car_doors5bits.Charging12V = 0;
> to vehicle_thinkcity.c when:
> - discharge is not allowed AND charge is not enabled
>
> In addition to car_doors5bits.Charging12V = 1; when:
> - charge is enabled
> - End of Charge is detected AND plug is attached
>
> Some quick tests gives positive result that no 12V Critical Alert is send.
> I’ll keep you posted.
>
> Br.
> Håkon
>
>
> 13. nov. 2013 kl. 08:51 skrev Håkon Markussen <hakon.markussen at gmail.com>:
>
> False 12V alerts disappeared when triggering alert from ref - 2,0V.
>
> // Trigger 12V alert if voltage <= ref - 1.5 V:
> if (!(can_minSOCnotified & CAN_MINSOC_ALERT_12V)
> && (car_12vline <= (car_12vline_ref - *20*)))
> {
> can_minSOCnotified |= CAN_MINSOC_ALERT_12V;
> net_req_notification(NET_
> NOTIFY_12VLOW);
> }
>
> Br.
> Håkon
>
>
>
> 2013/11/12 Håkon Markussen <hakon.markussen at gmail.com>
>
>> When setting Notifications (parameter #3) to "IP" or "SMSIP" I finally
>> receive alerts - including Minimum SOC (feature #9) ;)
>>
>> The 12V Critical Alert triggers quite often, even if my 12V-battery is
>> new and in top condition.
>> I've measured that the car_12vline reports ~0,5V less than the real
>> battery voltage, so I plan to change the file net.c (line 1458) from:
>>
>>
>>
>>
>>
>>
>>
>> * // Trigger 12V alert if voltage <= ref - 1.5 V: if
>> (!(can_minSOCnotified & CAN_MINSOC_ALERT_12V) && (car_12vline <=
>> (car_12vline_ref - 15))) { can_minSOCnotified |=
>> CAN_MINSOC_ALERT_12V; net_req_notification(NET_NOTIFY_12VLOW); }*
>>
>> to:
>>
>> // Trigger 12V alert if voltage <= ref - 1.5 V:
>> if (!(can_minSOCnotified & CAN_MINSOC_ALERT_12V)
>> && (car_12vline <= (car_12vline_ref - *20*)))
>> {
>> can_minSOCnotified |= CAN_MINSOC_ALERT_12V;
>> net_req_notification(NET_NOTIFY_12VLOW);
>> }
>>
>> and compile it to a local hex-build and test in on my Think City.
>> Keep you posted about the result.
>>
>> Best regards.
>> Håkon
>>
>>
>> 2013/10/30 Mark Webb-Johnson <mark at webb-johnson.net>
>>
>>>
>>> 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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>>
>>
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