 |
|
|
|
|
|
 Title: |
US20040162683A1:
Method and apparatus for generalized recursive least-squares process for battery state of charge and state of health
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Verbrugge, Mark W.; Troy, MI, United States of America
Tate, Edward D.; Grand Blanc, MI, United States of America
Frisch, Damon R.; Troy, MI, United States of America
Koch, Brian J.; Berkley, MI, United States of America
|
| Assignee: |
None
|
| Published / Filed: |
2004-08-19
/ 2003-02-18
|
| Application Number: |
US2003000368869
|
| IPC Code: |
Advanced:
G01R 31/36;
G01R 31/00;
IPC-7:
G06F 19/00;
|
| ECLA Code: |
G01R31/36N1; G01R31/36V1A; S01R31/00T2; S01R31/36N3; S01R31/36V3; S01R31/36V5;
|
| U.S. Class: |
702/064;
|
| Priority Number: |
| 2003-02-18 |
US2003000368869 |
|
| Abstract: |
A method for determining a voltage based or current based state of charge (SOC) and state of health (SOH) of a battery system is provided. The method includes: providing a model of the battery system including an equivalent circuit having both low frequency and high frequency elements; establishing a plurality of functional relationships comprising relationship of the equivalent circuit with SOC; reducing at least part of the plurality of functional relationships into a set of time segmented recursive functional relationships, wherein a state at a first time t can be modeled by a functional presentation of a state at a second time t-Deltat that occurred before the first time t; and computing a set of data points based upon the set of time segmented recursive functional relationships using a matrix for operation in matrix algebra.
|
| Attorney, Agent or Firm: |
CHRISTOPHER DEVRIES General Motors Corporation; Legal Staff, Mail Code 482-C23-B21P.O. Box 300
, Detroit
, MI
48265-3000 United States of America
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Family: |
Show 4 known family members
|
First Claim:
Show all claims |
1. A method for determining a voltage based state of charge (SOC) and state of health (SOH) of a battery system, comprising: providing a model of said battery system including an equivalent circuit having both low frequency and high frequency elements; establishing a plurality of functional relationships including relationship of said equivalent circuit with SOC; reducing at least part of said plurality of functional relationships into a set of time segmented recursive functional relationships, wherein a first state at a first time t can be modeled by a functional presentation of a second state at a second time t−Δt that occurred before said first time t; and computing a set of data points based upon said set of time segmented recursive functional relationships using a matrix for operation in matrix algebra.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 15 U.S. patent(s) that reference this one
|
Nominate this for the Gallery...
