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. 26, 1996
Filed:
Sep. 26, 1994
Dell A Crouch, Jr, Noblesville, IN (US);
Tracy F Strickland, Noblesville, IN (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A battery pack comprising a plurality of series arranged module has a state-of-charge and capacity associated therewith that are determined through dynamic operation thereof including both charge and discharge cycling. Amp*hour integration techniques are used to update state-of-charge until one of the plurality of modules is deeply discharged, at which time state-of-charge is updated in accordance with measured dynamic battery parameters of the deeply discharged module and capacity is updated in accordance with the newly calculated state-of-charge thereby accounting for capacity loss throughout the pack's cycle life. Alternatively, amp*hour integration techniques are used only at relatively high states of charge and dynamic parameter techniques are employed thereafter.