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. 23, 2016
Filed:
Jun. 30, 2015
Applicant:
Proterra Inc., Greenville, SC (US);
Inventor:
Ryan P. Watts, Simpsonville, SC (US);
Assignee:
Proterra Inc., Greenville, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); G01R 31/36 (2006.01); B60L 11/18 (2006.01); H02J 7/04 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3624 (2013.01); B60L 11/1816 (2013.01); B60L 11/1861 (2013.01); H02J 7/007 (2013.01); H02J 7/0068 (2013.01); H02J 7/0078 (2013.01); H02J 7/044 (2013.01);
Abstract
A method of determining the state of charge of a battery during charging may include providing a charging current having a first magnitude to the battery for charging, and changing a magnitude of the charging current from the first magnitude to a second magnitude. The second magnitude may be equal to the magnitude of current discharged from the battery during the charging. The method may also include determining a voltage across the battery after the changing, and determining a state of charge of the battery as a function of the determined voltage from a battery characterization curve.