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US 8,283,891 B2Granted
Power source health assessment methods and systems thereof
AssigneeRochester Institute of Technology
InventorOmar Anbari
Life of this patent
Estimating the term…
Abstract
A method and system for assessing health of a power source includes measuring voltage and current of a power source in a system using a device in the system as the load. An internal resistance of the power source is determined based on the measured voltage and current. A health assessment of the power source is determined and provided based at least on the determined internal resistance and a stored baseline internal resistance for the power source.
Claims26
A method for assessing health of a power source, the method comprising:
- measuring voltage and current of a power source in a system at a start and a stop of a transient period of time using a device in the system as the load;
- determining an internal resistance of the power source based on a difference of the measured voltages at the start and stop of the transient period of time divided by a difference of the measured current at the start and stop of the transient period of time;
- and
- determining and providing a health assessment of the power source based on at least on the determined internal resistance and a stored baseline internal resistance for the power source.
1 more element
A system for assessing health of a power source comprising:
- a data acquisition system that measures voltage and current of a power source in a system at a start and a stop of a transient period of time using a device in the system as the load;
- an analysis system that determines an internal resistance of the power source based on a difference of the measured voltages at the start and stop of the transient period of time divided by a difference of the measured current at the start and stop of the transient period of time;
- and
- an assessment processing system that determines and provides a health assessment of the power source based at least on the determined internal resistance and a stored baseline internal resistance for the power source.
1 more element
Dependencies are inferred from the claim text.