Patent ID: 11906589
Assignee: NUVATION RESEARCH CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A device for determining whether a state-of-charge of an energy storage system is tracking, comprising:
a current measurement circuit to measure a current related to the energy storage system to ascertain a measured current;
a voltage measurement circuit to measure a voltage related to the energy storage system to ascertain a measured voltage;
a tangible, non-transitory memory configured to communicate with one or more processors, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by one or more of the processors, cause the processor to perform operations;
an estimator module including at least one of the one or more processors, the estimator module configured to generate, by the one or more processors, a model-based state-of-charge estimate based on the measured current and the measured voltage, and configured to generate a model-based standard error based on the measured current and the measured voltage;
a tracking module including at least one of the one or more processors, the tracking module configured to:
(1) generate, by the one or more processors, an upper confidence limit and a lower confidence limit; and
(2) provide a tracking signal that indicates whether an output state-of-charge estimate is tracking between the upper confidence limit and the lower confidence limit.