Battery system management through non-linear estimation of battery state of charge

Patent · Tue Nov 09 00:00:00 EST 2021

OSTI ID:1860050

Crawford, Alasdair James; Viswanathan, Vilayanur Venkataraman; Balducci, Patrick Joseph; Hardy, Trevor D.; Wu, Di; Kintner-Meyer, Michael C. W.

Systems, methods, and computer media for battery system management and non-linear estimation of battery state of charge are provided herein. Battery data is received for a time period over which a battery system has operated. The battery data represents the actual performance of the battery system over the time period. Sub-periods of charging or discharging can be identified in the time period. For the sub-periods of time, a curve can be fit to the battery data. Using the curves for the battery data for the sub-periods of time, an expected performance of the battery system, over a range of states-of-charge, can be determined. Operating instructions for the battery system can be provided based on the expected performance.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): 11,169,214
• Application Number: 16/714,500
• OSTI ID: 1860050
• Resource Relation: Patent File Date: 12/13/2019
• Country of Publication: United States
• Language: English