ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,618, issued on March 31, was assigned to AUDI AG (Ingolstadt, Germany).

"Externally excited electric machine, motor vehicle, and method for producing an externally excited electric machine" was invented by Daniel Ruppert (Lenting, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An externally excited electric machine includes an exciter power circuit connected to a rotor winding, a stator power circuit connected to a stator winding, an exciter control circuit connected by at least a first connector to the exciter power circuit, and a stator control circuit connected by at least a second connector to the stator power circuit. The exciter contr...