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. 31, 2021
Filed:
Oct. 01, 2019
Ford Global Technologies, Llc, Dearborn, MI (US);
Benjamin A. Tabatowski-Bush, Ann Arbor, MI (US);
Baojin Wang, Ypsilanti, MI (US);
John Paul Gibeau, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A vehicle battery system has a battery including a plurality of series connected cells, a bus bar electrically connected between an adjacent pair of the series connected cells, and circuitry. The circuitry injects a sinusoidal current waveform through the bus bar, obtains a magnitude of a sinusoidal voltage waveform contained by an overall voltage of the bus bar that is caused by the sinusoidal current waveform from a sampled and filtered version of the overall voltage and digital data defining the sinusoidal current waveform, obtains a resistance of the bus bar from the magnitude of the sinusoidal voltage waveform and a measured magnitude of the sinusoidal current waveform, and obtains a magnitude of current through the battery from a DC portion of a spectrum of the overall voltage and the resistance of the bus bar.