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. 15, 2016
Filed:
Nov. 27, 2012
Applicant:
Atieva, Inc., Redwood City, CA (US);
Inventors:
Albert Liu, Redwood City, CA (US);
Samuel Chang, Redwood City, CA (US);
Monika Minarcin, Redwood City, CA (US);
Assignee:
Atieva, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/16 (2006.01); H02J 7/00 (2006.01); G01R 31/36 (2006.01); H01M 10/44 (2006.01); B60L 3/00 (2006.01); B60L 11/18 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0022 (2013.01); B60L 3/0046 (2013.01); B60L 11/1816 (2013.01); B60L 11/1824 (2013.01); B60L 11/1846 (2013.01); B60L 11/1857 (2013.01); B60L 11/1861 (2013.01); B60L 11/1864 (2013.01); G01R 31/3662 (2013.01); H01M 10/44 (2013.01); H02J 7/0021 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2240/80 (2013.01); B60L 2250/16 (2013.01); G01R 31/3624 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7055 (2013.01); Y02T 10/7061 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/121 (2013.01); Y02T 90/128 (2013.01); Y02T 90/14 (2013.01); Y02T 90/163 (2013.01); Y02T 90/169 (2013.01); Y04S 30/14 (2013.01);
Abstract
A rechargeable battery pack is discontinuously charged in multiple discrete charging intervals. Reductions in battery pack voltage that occur during non-charging intervals, each transpiring between a respective pair of the discrete charging intervals, are measured. Multiple resistance values that characterize the internal resistance (DC resistance) of the battery pack are generated based on the reductions in battery pack voltage that occur during the non-charging intervals.