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:
Aug. 04, 2009
Filed:
Feb. 09, 2005
Andrew M. Zettel, Ann Arbor, MI (US);
Damon R. Frisch, Troy, MI (US);
Mary A. Jeffers, Clarkston, MI (US);
Goro Tamai, West Bloomfield, MI (US);
Brian J. Koch, Berkley, MI (US);
Andrew M. Zettel, Ann Arbor, MI (US);
Damon R. Frisch, Troy, MI (US);
Mary A. Jeffers, Clarkston, MI (US);
Goro Tamai, West Bloomfield, MI (US);
Brian J. Koch, Berkley, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A refresh control system that selectively initiates a refresh charge cycle includes an energy storage device and an electric machine that is operable to charge the energy storage device. A control module monitors a usage period of the energy storage device and determines a bias factor. The control module determines a modified usage period threshold based on a usage period threshold and the bias factor. The control module regulates the electric machine to initiate a refresh charge cycle of the energy storage device when the usage period exceeds the modified usage period threshold.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile