ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,374, issued on April 29.
"Method for estimating direct current internal resistance of battery" was invented by Shih Fa Hung (Kaohsiung, Taiwan), Chong-Yong Wu (Kaohsiung, Taiwan) and Wen-Fan Chang (Kaohsiung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention presents a method for estimating a direct current internal resistance of a battery, which defines a depth of discharge detection interval including a first threshold and a second threshold. When the battery is discharging, a currently battery voltage are periodically measured, a currently depth of discharge is calculated, and an open-circuit voltage is queried. The currently bat...