[Ovmsdev] BUG? in v3.2.0-1 in vehicle_mitsubishi - flood of BMS-error msg

[Tamás Kovács]

Now i see your bms error message get from temperature, you can change the
threshold of the error messages same place as disble this messages.
On web interface you can see cell volt and temps in bar graps, you see
88volts and temps? Can you send a photo from this page.
What program you create a log for long time?

Michael Eric Menk <mikeemenk at gmail.com> ezt írta (időpont: 2019. jan. 19.,
Szo, 17:04):

> On 19.01.2019 16:30, Tamás Kovács wrote:
>
> > I don't understand, i see all the 88 volt and 66 temp sensor data in
> > CAN frame, your car is sure to be 80 cell?
> >
> Yes, it's a 80 cell car..
>
> I have 363  hours    7  minutes  38  seconds of logs
>
> Max volt:
>
> > select max(b_volt) from SECLOG ;
> > 329.7
>
> Cell volt of one missing cell:
> >
> > select avg(CMU_12_CELL_D) from CELL_VOLTS;
> > 0.000539636363636364
> > sqlite> select avg(CMU_01_CELL_D) from CELL_VOLTS;
> > 3.89978060606068
> >
>
> The car shuts down if i cell gets down to -30
>
> > select count(*) from cell_temps where CMU_12_UNIT_3 > -30 ;
> > 115
> > select count(*) from cell_temps where CMU_12_UNIT_3 < -30 ;
> > 20510
>
>
> the 115 readings is odd, seams to be some ghost readings...
>
> > select distinct(CMU_12_UNIT_3) from cell_temps ;
> > -50
> > 0
> > 20
>
>
> Maybe a glitch when starting the car, an initial value.. Since it's
> only 0 and 20°C, that's likely considering we also see the same with the
> QC signal of RR=255.
>
> Solution?
>
> It's likely that the the messages are sent on the bus, but it's not used
> by the components. We do know, from documentation from Mitsubishi that
> if the battery (one cell) is below -30°C, the car goes in to
> hibernation, and wakes up after 6 hours to check if the battery have
> warmed up.
>
> In other words, if one of the sensors is below -30°C of the optional
> battery cells, then we know that the battery has 80 cells.
>
> --
> Michael Menk
>
>
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>


-- 
Üdvözlettel:
Kovács Tamás
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