ALEXANDRIA, Va., June 9 -- United States Patent no. 12,651,988, issued on June 9, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Rotary machine control apparatus" was invented by Kota Teramoto (Tokyo) and Toshiki Suzuki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control apparatus includes: a current detection unit detecting rotary machine current flowing to a rotary machine; a position estimation unit calculating an estimate value of a rotor position based on the rotary machine current; a current control unit generating a first voltage command being a command value of rotary machine voltage for driving the rotary machine, based on a detection value of the rotary machine current and the esti...