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:
Nov. 25, 2003
Filed:
Jun. 26, 2001
Edward Dean Tate, Jr., Grand Blanc, MI (US);
Mark William Verbrugge, Troy, MI (US);
Shawn D. Sarbacker, Royal Oak, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A method and apparatus for improving estimation of battery impedance when determining the state of charge of a battery including injecting a wide spectrum signal continuously across a battery when the battery is in generator mode. Additionally, the wide spectrum signal may be injected across an alternator of a conventional internal combustion engine to improve estimation of battery impedance and subsequent state of charge the battery.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile