US Patent Issued to NSK STEERING & CONTROL on Sept. 16 for "Motor control device and electric power steering device" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,564, issued on Sept. 16, was assigned to NSK STEERING & CONTROL INC. (Tokyo).

"Motor control device and electric power steering device" was invented by Keita Yoshida (Tokyo) and Hideki Sawada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The motor control device includes: a d-axis current command value calculation unit configured to set a first d-axis current command value for field-weakening; a first current limiting unit configured to calculate a first q-axis current command value by limiting a base q-axis current command value as to satisfy a condition of motor rated current; a second current limiting unit configured to calculate a secon...