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:
Jul. 21, 2026
Filed:
Apr. 20, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Mohamed Ahmed Kamel Ahmed, Birmingham, MI (US);
Chandra S. Namuduri, Troy, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An electric vehicle, system and method of charge transfer at the electric vehicle. The vehicle includes a charging circuit and a processor. The charging circuit includes a first battery, a second battery and a motor winding. The processor determines a desired reference current of the motor winding, a first voltage of the first battery and a second voltage of the second battery, calculates a power loss for each of a plurality of conduction modes based on the desired reference current, the first voltage and the second voltage, wherein each of the plurality of conduction modes transfers charge between the first battery and the second battery, selects a conduction mode from the plurality of conduction modes that has a least power loss, establishes a duty cycle parameter for the selected mode, and applies the conduction mode and the duty cycle parameter to the charging circuit to transfer the charge.