SYSTEM AND METHOD FOR BATTERY MONITORING
1 Assignment
0 Petitions
Accused Products
Abstract
A method and system for estimating the state-of-charge (SOC) and state-of-health (SOH) of a battery is disclosed. The method of the invention accurately determines the battery SOC by estimating the values of the recurring constants determined by the battery parameters based on the current and SOC values obtained during the charging and discharging cycle of the battery.
-
Citations
29 Claims
-
1-10. -10. (canceled)
-
11. A method for estimating a State of Charge (SOC) and State of Health (SOH) of a battery, the method comprising:
-
applying a correction mechanism utilizing a function dependent on a temperature of the battery and a degradation of the battery and an exponential factor dependent on a current of the battery and the temperature of the battery; and applying a cumulative correction loop to compensate for one or more accumulation errors caused due to one or more battery parameters, including an age of the battery; wherein the correction mechanism and the cumulative correction loop are applied at different times and are not applied simultaneously. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
20. A system for estimating a State of Charge (SOC) and State of Health (SOH) of a battery, the system comprising:
a processor configured to; apply a correction mechanism utilizing a function dependent on a temperature of the battery and a degradation of the battery and an exponential factor dependent on a current of the battery and the temperature of the battery; and apply a cumulative correction loop to compensate for one or more accumulation errors caused due to one or more battery parameters, including an age of the battery; wherein the correction mechanism and the cumulative correction loop are applied at different times and are not applied simultaneously. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
Specification