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Systems and methods for initializing a charging system

United States Patent

9,770,991
September 26, 2017
View the Complete Patent at the US Patent & Trademark Office
Systems and methods are provided for charging a battery. The system, for example, includes, but is not limited to a first interface configured to receive a voltage from an AC voltage source, a matrix conversion module comprising a plurality of switches electrically connected to the first interface and configured to provide a charging voltage to the battery, and a controller communicatively connected to the matrix conversion module, wherein the controller is configured to: determine a voltage of the battery, determine an angle of the AC voltage source to initiate charging of the battery based upon the voltage of the battery, and control the plurality of switches to provide the charging voltage to the battery between the determined angle of the AC voltage source and a subsequent zero-crossing of the AC voltage source.
Perisic; Milun (Cypress, CA), Ransonm; Ray M. (Big Bear City, CA), Kojouke; Lateef A. (San Pedro, CA)
GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit, MI)
13/ 907,703
20140354241
May 31, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Agreement No. DE-FC26-07NT43123, awarded by the United States Department of Energy. The Government has certain rights in this invention.