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

Abstract

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.

Inventors:

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

Issue Date:

2021-11-09

Research Org.:

Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1860050

Patent Number(s):

11169214

Application Number:

16/714,500

Assignee:

Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

G - PHYSICS G05 - CONTROLLING G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL

Show more

G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

G01R31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R31/3647 - {for determining the ability of a battery to perform a critical function, e.g. cranking}
G01R31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC

G - PHYSICS G05 - CONTROLLING G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL

G05B19/05 - Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
G05B2219/1137 - Peer to peer communication
G05B23/0294 - {Optimizing process, e.g. process efficiency, product quality}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M10/4257 - {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries}

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

H02J7/00036 - {Charger exchanging data with battery}
H02J7/0048 - {Detection of remaining charge capacity or state of charge [SOC]}

Show less

DOE Contract Number:  

AC05-76RL01830

Resource Type:

Patent

Resource Relation:

Patent File Date: 12/13/2019

Country of Publication:

United States

Language:

English