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. 01, 2022
Filed:
Aug. 22, 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);
Ai Keramidas, West Bloomfield, MI (US);
Kimberley King, Northville, MI (US);
Daniel Paul Roberts, Livonia, MI (US);
Aaron Walker, Auburn Hills, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A vehicle has a battery including a plurality of cells connected in series, and a battery management integrated circuit including a plurality of inputs each being directly electrically connected to a terminal of one of the cells via an electrical path that includes a fuse and a resistor connected in series. The battery management integrated circuit further includes a top input directly electrically connected to a positive output of the battery and configured to receive power from the battery that is defined by a current having a magnitude that is at least an order of magnitude greater than current received by the inputs and a voltage equal to a sum of voltages of all the cells. The battery management integrated circuit is configured to calculate a voltage difference between one of the inputs and an adjacent one of the inputs to determine a voltage of a top cell of the battery cells and to correct the voltage of the top cell to form a corrected voltage as a sum of the voltage of the top cell and a calculated voltage drop across the fuse in the electrical path between the top cell and the one of the inputs. The vehicle further has a controller programmed to balance the cells according to the corrected voltage of the top cell.