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US 2024/0190292 A1Published application
Prediction of ageing of electrical energy storages
AssigneeVolvo Truck Corporation
InventorDhiraj P BHANDARY
Life of this patent
Estimating the term…
Abstract
The disclosure relates generally to electrical energy storages. In particular aspects, the disclosure relates to prediction of ageing of electrical energy storages. The disclosure can be applied in heavy-duty vehicles, such as trucks, buses, and construction equipment.
Claims20
A computer system comprising a processor device configured to:
- retrieve reference data of a reference cell, the reference data including at least one initial aging parameter at beginning of life of the reference cell, and usage conditions of the reference cell including usage condition values,
- measure at least one initial aging parameter of each electrical energy storage cell of an electrical energy storage system at beginning of life of each electrical energy storage cell, and at least one usage condition value for each electrical energy storage cell;
- calculate a first similarity value that indicates a relative relationship between one initial aging parameter for each electrical energy storage cell and the corresponding initial aging parameter at beginning of life of the reference cell,
- calculate a second similarity value that indicates a relative relationship between one usage condition value for each electrical energy storage cell and the corresponding usage condition value of the reference cell,
- determine a final similarity value for each electrical energy storage cell based on all similarity values of the respective electrical energy storage cell,
- predict an aging evolution of each electrical energy storage cell based on the final similarity values, and
- provide data indicating the aging evolution of each electrical energy storage cell.
4 more elements
A computer-implemented method, comprising:
- retrieving, by a processor device of a computer system, reference data of a reference cell, the reference data including at least one initial aging parameter at beginning of life of the reference cell, and usage conditions of the reference cell including usage condition values,
- measuring, by the processor device, at least one initial aging parameter of each electrical energy storage cell of an electrical energy storage system at beginning of life of each electrical energy storage cell, and at least one usage condition value for each electrical energy storage cell;
- calculating, by the processor device, a first similarity value that indicates a relative relationship between one measured initial aging parameter for each electrical energy storage cell and the corresponding initial aging parameter at beginning of life of the reference cell,
- calculating, by the processor device, a second similarity value that indicates a relative relationship between one usage condition value for each electrical energy storage cell and the corresponding usage condition value of the reference cell,
- determining, by the processor device, a final similarity value for each electrical energy storage cell based on all similarity values of the respective electrical energy storage cell,
- predicting, by the processor device, an aging evolution of each electrical energy storage cell based on the final similarity values, and
- providing, by the processor device, data indicating the aging evolution of each electrical energy storage cell.
4 more elements
Dependencies are inferred from the claim text.