Gm global technology operations llc (20250135959). BACK ELECTROMOTIVE FORCE MANAGEMENT FOR ELECTRIC VEHICLES
BACK ELECTROMOTIVE FORCE MANAGEMENT FOR ELECTRIC VEHICLES
Organization Name
gm global technology operations llc
Inventor(s)
Christopher Lyman Jones of Atlanta GA US
Todd M. York of Highland MI US
Anthony H. Heap of Ann Arbor MI US
BACK ELECTROMOTIVE FORCE MANAGEMENT FOR ELECTRIC VEHICLES
This abstract first appeared for US patent application 20250135959 titled 'BACK ELECTROMOTIVE FORCE MANAGEMENT FOR ELECTRIC VEHICLES
Original Abstract Submitted
an electric vehicle battery control system including a first electric motor configured to propel a vehicle in a drive mode in response to a drive current, a second electric motor operative to generate a back electromotive force voltage in a fault mode, a battery, having an open circuit battery discharge voltage, for generating the drive current for coupling to the first electric motor, and a vehicle controller for limiting the drive current in response to a difference between the back electromotive force voltage and the open circuit battery discharge voltage being less than a threshold voltage difference.