Energy storage system state of charge diagnostic

Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging

Reexamination Certificate

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C320S136000

Reexamination Certificate

active

10779481

ABSTRACT:
An energy storage system determined to be at an operating point indicative of incipient threat to its condition is permitted to continue power flow for a duration that is a function of the state of charge before a diagnosis of a critical state of charge condition is rendered. If the state of charge returns to an acceptable region before the duration expires, no diagnosis of a critical state of charge condition is rendered. Generally, the duration increases as the state of charge trends toward the region of acceptable state of charge and decreases as the state of charge trends away from the region of acceptable state of charge.

REFERENCES:
patent: 5786640 (1998-07-01), Sakai et al.
patent: 6166517 (2000-12-01), Wakashiro et al.
patent: 6388421 (2002-05-01), Abe
patent: 6841972 (2005-01-01), Koo
patent: 6868318 (2005-03-01), Cawthorne et al.

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