Battery control and fault detection method

Patent · Wed Jul 11 04:00:00 EDT 1984

OSTI ID:6004938

Bishop, W S

This is a method for control, fault detection, fault isolation, and state-of-health monitoring of batteries and battery arrays. The method consists of measuring all of the battery, well, or cell group voltages, using statistics to determine a mean voltage and a standard deviation voltage, then comparing all of the measured voltages to the mean voltage. If the measured voltage deviates from the mean voltage by an arbitrary amount (number of standard deviations) corrective action can be implemented or an alarm signal given. The measurements need to be made rapidly enough to eliminate battery or cell voltage changes due to state of charge or temperature changes and, in most cases, require a computerized data collection/reduction system. Absolute high and/or low voltage limits can be included to prevent catastrophic events. The concept can be expanded to include similar temperature, pressure and/or battery current measurements in an array.

• Assignee: EDB-85-060317; ERA-10-020307
• Patent Number(s): None
• OSTI ID: 6004938
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
BATTERY CHARGERS
COMPUTERS
CONTROL SYSTEMS
DETECTION
DIGITAL COMPUTERS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTIC CELLS
MONITORING
SIGNALS