Predicted sensor information for a battery
First Claim
1. A method for predicting a value of an unmeasured parameter of a first cell of a battery pack using a battery management system (BMS) of the battery pack, the first cell being one of a plurality of cells of the battery pack, the method comprising:
- identifying, using a processor of the BMS, a measured parameter of a second cell of the plurality of cells that is correlated with the unmeasured parameter of the first cell in a memory of the BCM;
determining, using a sensor of the battery pack that is operably coupled to the second cell and to the processor of the BMS, a value for the measured parameter of the second cell; and
predicting, using the processor of the BMS, the value of the unmeasured parameter of the first cell based at least in part on the determined value of the measure parameter of the second cell, wherein the unmeasured parameter of the first cell comprises an internal temperature, an external temperature, an internal pressure, a voltage, a current, or a lithium intercalation pressure of the first cell.
4 Assignments
0 Petitions
Accused Products
Abstract
A computer-implemented method for predicting a value of a cell parameter is provided, wherein the cell is one of a plurality of cells of a battery pack. The method includes determining which other different conditions of the cell and which similar and/or different conditions of any other cell of the plurality of cells correlate with the cell condition, determining values of one or more parameters from the same cell or any other cell of the plurality of cells that correspond to the determined conditions that correlate with the cell condition, and predicting the value of the cell parameter based on the determined values.
-
Citations
19 Claims
-
1. A method for predicting a value of an unmeasured parameter of a first cell of a battery pack using a battery management system (BMS) of the battery pack, the first cell being one of a plurality of cells of the battery pack, the method comprising:
-
identifying, using a processor of the BMS, a measured parameter of a second cell of the plurality of cells that is correlated with the unmeasured parameter of the first cell in a memory of the BCM; determining, using a sensor of the battery pack that is operably coupled to the second cell and to the processor of the BMS, a value for the measured parameter of the second cell; and predicting, using the processor of the BMS, the value of the unmeasured parameter of the first cell based at least in part on the determined value of the measure parameter of the second cell, wherein the unmeasured parameter of the first cell comprises an internal temperature, an external temperature, an internal pressure, a voltage, a current, or a lithium intercalation pressure of the first cell. - View Dependent Claims (2, 3, 4, 5, 16, 17, 18, 19)
-
-
6. A battery management system (BMS) of a battery pack, comprising:
-
a processing unit and a memory unit for storing instructions that are operable, when executed by the processing unit, to perform a method for predicting a value of an unmeasured parameter of a first cell of a plurality of cells of the battery pack, the method comprising; identifying, using the processing unit, a measured parameter of a second cell of the plurality of cells that is correlated with the unmeasured parameter of the first cell in the memory unit of the BMS; determining, using a sensor of the battery pack that is operably coupled to the second cell and to the processing unit of the BMS, a value for the measured parameter of the second cell; and predicting, using the processing unit of the BMS, the value of the unmeasured parameter of the first cell based at least in part on the determined value of the measure parameter of the second cell, wherein the unmeasured parameter of the first cell comprises an internal temperature, an external temperature, an internal pressure, a voltage, a current, or a lithium intercalation pressure of the first cell. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A battery pack, comprising:
- a first cell coupled with a corresponding sensing unit configured to measure a value of a parameter of the first cell;
a second cell that is not coupled with a sensing unit; and
a battery management system (BMS) coupled to each corresponding sensing unit coupled with the first cell, wherein the BMS includes a processor and a memory storing a prediction model that defines correlations between the parameters of the first cell and unmeasured parameters of the second cell, and wherein the processor is configured to use the prediction model to predict values for the unmeasured parameters of the second cell based at least in part on the measured values of the parameters of the first cell. - View Dependent Claims (12, 13, 14, 15)
- a first cell coupled with a corresponding sensing unit configured to measure a value of a parameter of the first cell;
Specification