The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2002
Filed:
Dec. 27, 2000
Applicant:
Inventors:
Mark William Verbrugge, Troy, MI (US);
Edward Dean Tate, Jr., Grand Blanc, MI (US);
Shawn D. Sarbacker, Royal Oak, MI (US);
Brian James Koch, Berkley, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02J 7/00 ; G01N 2/7416 ;
U.S. Cl.
CPC ...
C02J 7/00 ; G01N 2/7416 ;
Abstract
A method and apparatus for determining the state of charge of a battery including determining a current-based state of charge measurement based on coulomb integration, determining a voltage-based state of charge measurement based on the resistance of said battery and a hysteresis voltage, and combining the current-based state of charge measurement and the voltage-based state of charge measurement to generate the state of charge measurement of the battery.