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:
Dec. 30, 2025
Filed:
Nov. 29, 2022
Ford Global Technologies, Llc, Dearborn, MI (US);
Yonghua Li, Ann Arbor, MI (US);
Marcelo Araujo Xavier, Belleville, MI (US);
Qi Jiao, Ann Arbor, MI (US);
Justin T. Hughes, Allen Park, MI (US);
FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US);
Abstract
A traction battery controller of an electrified vehicle dynamically selects an estimation gain based on an operating condition of the vehicle and controls the vehicle according to a state (e.g., a state-of-charge (SOC)) of the traction battery estimated from an equivalent circuit model of the traction battery that depends on the estimation gain. The operating condition of the vehicle may be indicative of on-board energy (OBE) or a power demand of the vehicle. In operation, the controller selects the estimation gain to be (i) a high estimation gain during a first operating condition of the vehicle, whereby compared to a nominal estimation gain the battery state is estimated at an increased speed but with lower accuracy and (ii) a low estimation gain during a second operating condition of the vehicle, whereby compared to the nominal estimation gain the battery state is estimated with greater accuracy but at a decreased speed.