18488309. BATTERY HEATING USING PLUG-IN BATTERY CHARGER (GM GLOBAL TECHNOLOGY OPERATIONS LLC)
BATTERY HEATING USING PLUG-IN BATTERY CHARGER
Organization Name
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor(s)
Nicholas W. Pinto of Shelby Township MI US
Neeraj S. Shidore of Novi MI US
Chandra S. Namuduri of Troy MI US
BATTERY HEATING USING PLUG-IN BATTERY CHARGER
This abstract first appeared for US patent application 18488309 titled 'BATTERY HEATING USING PLUG-IN BATTERY CHARGER
Original Abstract Submitted
An electrical system includes a battery, temperature sensor, and battery charging station connectable to the battery and to an alternating current (AC) power supply. The charging station includes connected battery charging and heating circuits. The charging circuit includes a first plurality of power switches configured to rectify an AC input voltage from the power supply into a direct current (DC) voltage for charging the battery during a battery charging mode. The heating circuit includes a voltage bus, transformer, series switch, and a second plurality of power switches downstream of the transformer. The heating circuit generates an AC battery current from the DC voltage and injects the same into the battery during a battery heating mode. An electronic controller controls the power switches and the series switch to perform the charging and heating modes, doing so via a corresponding method.