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:
Jun. 25, 2013
Filed:
Oct. 14, 2010
Steven J. Vance, Shelby Township, MI (US);
John T. Guerin, Bloomfield, MI (US);
Andrew H. Leutheuser, Sunnyvale, CA (US);
John C. Mentzer, Waterford, MI (US);
Steven J. Vance, Shelby Township, MI (US);
John T. Guerin, Bloomfield, MI (US);
Andrew H. Leutheuser, Sunnyvale, CA (US);
John C. Mentzer, Waterford, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A by-pass circuit for a battery system that disconnects parallel connected cells or modules from a battery circuit or controls the current through the parallel connected cells or modules. If a cell has failed or is potentially failing in the system, then the by-pass circuit can disconnect the cell or module from other cells or modules electrically coupled in parallel. If a cell or module has a lower capability than another cell or module, then the by-pass circuit can control the current to the cell or module to maximize the performance of the system and prevent the system from creating a walk-home condition.