ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,569, issued on Nov. 4, was assigned to OKUMA Corp. (Aichi, Japan).
"Control device for three-phase alternating current motor" was invented by Satoshi Eguchi (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control device, which is configured to control current of a three-phase alternating current motor by d-q axis control, includes a q-axis current controller configured to receive, as one input, an acceleration torque command value Tauf calculated based on a position command value X, and output a controller output voltage triangleeq to be added to a q-axis voltage command value vq*. The q-axis current controller calculates, based on the...