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. 30, 2009
Filed:
Feb. 23, 2004
Cyrus Ashtiani, West Bloomfield, MI (US);
Rick Lagerstrom, Ferndale, MI (US);
Otmar Bitsche, Stuttgart, DE;
Bernd Spier, Burgrieden, DE;
Cyrus Ashtiani, West Bloomfield, MI (US);
Rick Lagerstrom, Ferndale, MI (US);
Otmar Bitsche, Stuttgart, DE;
Bernd Spier, Burgrieden, DE;
Daimler AG, Stuttgart, DE;
Abstract
This objective is achieved according to the present invention in that in a method for determining the deterioration of a battery, the charge and discharge cycles of the battery are measured by number and depth of the charge/discharge. For each of the charge and discharge cycles, a characteristic deterioration value is determined on the basis of a deterioration curve that is characteristic of the specific battery type. These individual characteristic deterioration values are then summed up to obtain the deterioration of the battery.