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:
Jan. 31, 2012
Filed:
Sep. 25, 2008
Wei Liu, Warren, MI (US);
Michael J. Gielniak, Atlanta, GA (US);
Jian Lin, Beverly Hills, MI (US);
Brian Koch, Berkley, MI (US);
Damon R. Frisch, Troy, MI (US);
Joseph M. Lograsso, Troy, MI (US);
Wei Liu, Warren, MI (US);
Michael J. Gielniak, Atlanta, GA (US);
Jian Lin, Beverly Hills, MI (US);
Brian Koch, Berkley, MI (US);
Damon R. Frisch, Troy, MI (US);
Joseph M. Lograsso, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components.