ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,145, issued on Sept. 1, was assigned to MAGNA POWERTRAIN GMBH & CO KG (Lannach, Austria).
"Enhanced I/F control system and method for permanent magnet synchronous machines" was invented by Ying Zuo (Montreal), Chunyan Lai (Montreal), Lakshmi Varaha Iyer (Windsro, Canada), Anastasiia Galkina (Linz, Austria) and Martin Grossbichler (Aschach/Steyr, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a motor drive includes injecting a high frequency signal to determine position error information in order to automatically adjust the magnitude of stator current in I/F control. The method includes: determining a load-based q-axis c...