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. 12, 2019
Filed:
Aug. 30, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Yonghua Li, Ann Arbor, MI (US);
Xu Wang, Dearborn, MI (US);
Assignee:
FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2019.01); G01R 31/382 (2019.01); G01R 31/374 (2019.01); G01R 31/367 (2019.01);
U.S. Cl.
CPC ...
G01R 31/367 (2019.01); G01R 31/382 (2019.01); G01R 31/374 (2019.01);
Abstract
A method of determining battery power capability may include: determining a circuit model for a battery, including a first resistance (r) in series with a second resistance (r) and a capacitance (C) in parallel; setting upper and lower limits for r, rand C based on a battery temperature a battery state of charge or both; applying an EKF to determine r, rand C within the set upper and lower limits; and outputting the battery power capability based on r, rand C. The upper and lower limits may be adjusted based on the age of the battery.