US Patent Issued to DELTA ELECTRONICS on April 14 for "Method of estimating and compensating interference torque of lifting system" (Taiwanese Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,597, issued on April 14, was assigned to DELTA ELECTRONICS INC. (Taoyuan City, Taiwan).

"Method of estimating and compensating interference torque of lifting system" was invented by Shao-Kai Tseng (Taoyuan City, Taiwan), Yuan-Qi Hsu (Taoyuan City, Taiwan) and Ming-Tong Chuang (Taoyuan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of estimating and compensating an interference torque of a lifting system includes steps of: continuously integrating a speed of a motor and specifying an integration value to be zero if the integration value is negative when the elevator car moves upward and downward in a hoist way; estimating a rop...