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Changes for page 3.4 Battery parameters

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81 81  
82 82  To change parameters of the algorithm for calculating the cell resistance, select the menu "Cells → Cell resistance estimation":
83 83  
84 +[[Cell resistance estimation settings>>image:1732207338609-903.png||data-xwiki-image-style-alignment="center" height="187" width="337"]]
85 +
86 +In this section:
87 +
88 +* Current stabilization time, second;
89 +* Maximum estimation period – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current Istable than is determined in this field, the resistance calculation is not performed, second;
90 +* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
91 +* Minimum SOC – minimum cell SOC value for resistance calculation;
92 +* Maximum SOC – maximum cell SOC value for resistance calculation.
93 +
94 +The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see section Cell defaults). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
95 +
96 +
84 84  == SOC correction ==
85 85  
86 86  The BMS Main 2.x board can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see section Calculating the state of charge (SOC)).