System and method for prognosis of batteries
AssigneeGeneral Electric Company
InventorsHerman Lucas Norbert Wiegman, David Eugene James
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Abstract
In accordance with one aspect of the present technique, a method is disclosed. The method includes identifying a first change in an excitation direction of a group of cells and determining a first set of characteristics of the group of cells corresponding to the first change. The method also includes identifying a second change in the excitation direction of the group of cells and determining a second set of characteristics of the group of cells corresponding to the second change. The second change in the excitation direction is opposite to the first change in the excitation direction. The method further includes determining a number of functional cells from the group of cells based on the first and the second set of characteristics.
Claims20
A method, comprising:
- identifying a first change in an excitation direction of a group of cells;
- determining a first set of characteristics of the group of cells corresponding to the first change;
- identifying a second change in the excitation direction of the group of cells, wherein the second change in the excitation direction is opposite to the first change in the excitation direction;
- determining a second set of characteristics of the group of cells corresponding to the second change;
- and
- determining a number of functional cells from the group of cells based on the first and the second set of characteristics.
A system comprising:
- at least one processor;
- a direction module stored in a memory and executable by the at least one processor, the direction module for identifying a first change in an excitation direction of a group of cells, determining a first set of characteristics of the group of cells corresponding to the first change, identifying a second change in the excitation direction of the group of cells and determining a second set of characteristics of the group of cells corresponding to the second change, wherein the second change in the excitation direction is opposite to the first change in the excitation direction;
- and
- a determination module stored in the memory and executable by the at least one processor, the determination module coupled to the direction module for determining a number of functional cells from the group of cells based on the first and the second set of characteristics.
A computer program product comprising a non-transitory computer readable medium encoding instructions that, in response to execution by at least one processor, cause the processor to perform operations comprising:
- identifying a first change in an excitation direction of a group of cells;
- determining a first set of characteristics of the group of cells corresponding to the first change;
- identifying a second change in the excitation direction of the group of cells, wherein the second change in the excitation direction is opposite to the first change in the excitation direction;
- determining a second set of characteristics of the group of cells corresponding to the second change;
- and
- determining a number of functional cells from the group of cells based on the first and the second set of characteristics.
Dependencies are inferred from the claim text.